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freebsd-skq/contrib/gcc/function.c

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Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* Expands front end tree to back end RTL for GCC.
Merge gcc-2.95.3-test3 changes onto mainline. Bump FreeBSD cc version.
2001-02-17 08:35:00 +00:00
Copyright (C) 1987, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
This file is part of GCC.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
You should have received a copy of the GNU General Public License
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
along with GCC; see the file COPYING. If not, write to the Free
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Fix -mprofiler-epilogue on i386. This should be extended to other architectures in future. Submitted by: bde
2004-01-05 22:23:27 +00:00
/* $FreeBSD$ */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* This file handles the generation of rtl code from tree structure
at the level of the function as a whole.
It creates the rtl expressions for parameters and auto variables
and has full responsibility for allocating stack slots.
`expand_function_start' is called at the beginning of a function,
before the function body is parsed, and `expand_function_end' is
called after parsing the body.
Call `assign_stack_local' to allocate a stack slot for a local variable.
This is usually done during the RTL generation for the function body,
but it can also be done in the reload pass when a pseudo-register does
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
not get a hard register. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#include "config.h"
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
#include "system.h"
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
#include "coretypes.h"
#include "tm.h"
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#include "rtl.h"
#include "tree.h"
#include "flags.h"
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
#include "except.h"
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#include "function.h"
#include "expr.h"
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
#include "optabs.h"
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
#include "libfuncs.h"
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#include "regs.h"
#include "hard-reg-set.h"
#include "insn-config.h"
#include "recog.h"
#include "output.h"
#include "basic-block.h"
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
#include "toplev.h"
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
#include "hashtab.h"
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
#include "ggc.h"
#include "tm_p.h"
#include "integrate.h"
Update HEAD with FSF branch 3.2.1 release files.
2002-12-04 16:35:55 +00:00
#include "langhooks.h"
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
#include "target.h"
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
#include "cfglayout.h"
#include "tree-gimple.h"
#include "tree-pass.h"
#include "predict.h"
#include "vecprim.h"
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
#ifndef LOCAL_ALIGNMENT
#define LOCAL_ALIGNMENT(TYPE, ALIGNMENT) ALIGNMENT
#endif
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
#ifndef STACK_ALIGNMENT_NEEDED
#define STACK_ALIGNMENT_NEEDED 1
#endif
#define STACK_BYTES (STACK_BOUNDARY / BITS_PER_UNIT)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Some systems use __main in a way incompatible with its use in gcc, in these
cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
give the same symbol without quotes for an alternative entry point. You
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
must define both, or neither. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifndef NAME__MAIN
#define NAME__MAIN "__main"
#endif
/* Round a value to the lowest integer less than it that is a multiple of
the required alignment. Avoid using division in case the value is
negative. Assume the alignment is a power of two. */
#define FLOOR_ROUND(VALUE,ALIGN) ((VALUE) & ~((ALIGN) - 1))
/* Similar, but round to the next highest integer that meets the
alignment. */
#define CEIL_ROUND(VALUE,ALIGN) (((VALUE) + (ALIGN) - 1) & ~((ALIGN)- 1))
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
/* Nonzero if function being compiled doesn't contain any calls
(ignoring the prologue and epilogue). This is set prior to
local register allocation and is valid for the remaining
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
compiler passes. */
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
int current_function_is_leaf;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
/* Nonzero if function being compiled doesn't modify the stack pointer
(ignoring the prologue and epilogue). This is only valid after
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
life_analysis has run. */
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
int current_function_sp_is_unchanging;
/* Nonzero if the function being compiled is a leaf function which only
uses leaf registers. This is valid after reload (specifically after
sched2) and is useful only if the port defines LEAF_REGISTERS. */
int current_function_uses_only_leaf_regs;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Nonzero once virtual register instantiation has been done.
assign_stack_local uses frame_pointer_rtx when this is nonzero.
calls.c:emit_library_call_value_1 uses it to set up
post-instantiation libcalls. */
int virtuals_instantiated;
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin radar 5732232 - blocks */
struct block_sema_info *cur_block;
/* APPLE LOCAL end radar 5732232 - blocks */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Assign unique numbers to labels generated for profiling, debugging, etc. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
static GTY(()) int funcdef_no;
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* These variables hold pointers to functions to create and destroy
target specific, per-function data structures. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
struct machine_function * (*init_machine_status) (void);
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* The currently compiled function. */
struct function *cfun = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* These arrays record the INSN_UIDs of the prologue and epilogue insns. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static VEC(int,heap) *prologue;
static VEC(int,heap) *epilogue;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Array of INSN_UIDs to hold the INSN_UIDs for each sibcall epilogue
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
in this function. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static VEC(int,heap) *sibcall_epilogue;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* In order to evaluate some expressions, such as function calls returning
structures in memory, we need to temporarily allocate stack locations.
We record each allocated temporary in the following structure.
Associated with each temporary slot is a nesting level. When we pop up
one level, all temporaries associated with the previous level are freed.
Normally, all temporaries are freed after the execution of the statement
in which they were created. However, if we are inside a ({...}) grouping,
the result may be in a temporary and hence must be preserved. If the
result could be in a temporary, we preserve it if we can determine which
one it is in. If we cannot determine which temporary may contain the
result, all temporaries are preserved. A temporary is preserved by
pretending it was allocated at the previous nesting level.
Automatic variables are also assigned temporary slots, at the nesting
level where they are defined. They are marked a "kept" so that
free_temp_slots will not free them. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
struct temp_slot GTY(())
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
/* Points to next temporary slot. */
struct temp_slot *next;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Points to previous temporary slot. */
struct temp_slot *prev;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
/* The rtx to used to reference the slot. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
rtx slot;
/* The rtx used to represent the address if not the address of the
slot above. May be an EXPR_LIST if multiple addresses exist. */
rtx address;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* The alignment (in bits) of the slot. */
unsigned int align;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* The size, in units, of the slot. */
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
HOST_WIDE_INT size;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* The type of the object in the slot, or zero if it doesn't correspond
to a type. We use this to determine whether a slot can be reused.
It can be reused if objects of the type of the new slot will always
conflict with objects of the type of the old slot. */
tree type;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Nonzero if this temporary is currently in use. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
char in_use;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Nonzero if this temporary has its address taken. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
char addr_taken;
/* Nesting level at which this slot is being used. */
int level;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Nonzero if this should survive a call to free_temp_slots. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
int keep;
/* The offset of the slot from the frame_pointer, including extra space
for alignment. This info is for combine_temp_slots. */
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
HOST_WIDE_INT base_offset;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* The size of the slot, including extra space for alignment. This
info is for combine_temp_slots. */
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
HOST_WIDE_INT full_size;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
};
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Forward declarations. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
static rtx assign_stack_local_1 (enum machine_mode, HOST_WIDE_INT, int,
struct function *);
static struct temp_slot *find_temp_slot_from_address (rtx);
static void pad_to_arg_alignment (struct args_size *, int, struct args_size *);
static void pad_below (struct args_size *, enum machine_mode, tree);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static void reorder_blocks_1 (rtx, tree, VEC(tree,heap) **);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
static int all_blocks (tree, tree *);
static tree *get_block_vector (tree, int *);
extern tree debug_find_var_in_block_tree (tree, tree);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* We always define `record_insns' even if it's not used so that we
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
can always export `prologue_epilogue_contains'. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static void record_insns (rtx, VEC(int,heap) **) ATTRIBUTE_UNUSED;
static int contains (rtx, VEC(int,heap) **);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
#ifdef HAVE_return
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
static void emit_return_into_block (basic_block, rtx);
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
#endif
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
#if defined(HAVE_epilogue) && defined(INCOMING_RETURN_ADDR_RTX)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
static rtx keep_stack_depressed (rtx);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
#endif
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
static void prepare_function_start (tree);
static void do_clobber_return_reg (rtx, void *);
static void do_use_return_reg (rtx, void *);
static void set_insn_locators (rtx, int) ATTRIBUTE_UNUSED;
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL radar 6163705, Blocks prologues */
static rtx find_block_prologue_insns (void);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Pointer to chain of `struct function' for containing functions. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
struct function *outer_function_chain;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Given a function decl for a containing function,
return the `struct function' for it. */
struct function *
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
find_function_data (tree decl)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
struct function *p;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
for (p = outer_function_chain; p; p = p->outer)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (p->decl == decl)
return p;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gcc_unreachable ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* Save the current context for compilation of a nested function.
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
This is called from language-specific code. The caller should use
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
the enter_nested langhook to save any language-specific state,
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
since this function knows only about language-independent
variables. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
void
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
push_function_context_to (tree context ATTRIBUTE_UNUSED)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
struct function *p;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (cfun == 0)
init_dummy_function_start ();
p = cfun;
p->outer = outer_function_chain;
outer_function_chain = p;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
lang_hooks.function.enter_nested (p);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
cfun = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
push_function_context (void)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
push_function_context_to (current_function_decl);
}
/* Restore the last saved context, at the end of a nested function.
This function is called from language-specific code. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
pop_function_context_from (tree context ATTRIBUTE_UNUSED)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
struct function *p = outer_function_chain;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
cfun = p;
outer_function_chain = p->outer;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
current_function_decl = p->decl;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
lang_hooks.function.leave_nested (p);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Reset variables that have known state during rtx generation. */
virtuals_instantiated = 0;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
generating_concat_p = 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
pop_function_context (void)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
pop_function_context_from (current_function_decl);
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Clear out all parts of the state in F that can safely be discarded
after the function has been parsed, but not compiled, to let
garbage collection reclaim the memory. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
free_after_parsing (struct function *f)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
/* f->expr->forced_labels is used by code generation. */
/* f->emit->regno_reg_rtx is used by code generation. */
/* f->varasm is used by code generation. */
/* f->eh->eh_return_stub_label is used by code generation. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
lang_hooks.function.final (f);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
/* Clear out all parts of the state in F that can safely be discarded
after the function has been compiled, to let garbage collection
reclaim the memory. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
free_after_compilation (struct function *f)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
VEC_free (int, heap, prologue);
VEC_free (int, heap, epilogue);
VEC_free (int, heap, sibcall_epilogue);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
f->eh = NULL;
f->expr = NULL;
f->emit = NULL;
f->varasm = NULL;
f->machine = NULL;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
f->cfg = NULL;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
f->x_avail_temp_slots = NULL;
f->x_used_temp_slots = NULL;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
f->arg_offset_rtx = NULL;
f->return_rtx = NULL;
f->internal_arg_pointer = NULL;
f->x_nonlocal_goto_handler_labels = NULL;
f->x_return_label = NULL;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
f->x_naked_return_label = NULL;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
f->x_stack_slot_list = NULL;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
f->x_stack_check_probe_note = NULL;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
f->x_arg_pointer_save_area = NULL;
f->x_parm_birth_insn = NULL;
f->epilogue_delay_list = NULL;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Allocate fixed slots in the stack frame of the current function. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Return size needed for stack frame based on slots so far allocated in
function F.
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
This size counts from zero. It is not rounded to PREFERRED_STACK_BOUNDARY;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
the caller may have to do that. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static HOST_WIDE_INT
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
get_func_frame_size (struct function *f)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (FRAME_GROWS_DOWNWARD)
return -f->x_frame_offset;
else
return f->x_frame_offset;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Return size needed for stack frame based on slots so far allocated.
This size counts from zero. It is not rounded to PREFERRED_STACK_BOUNDARY;
the caller may have to do that. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
HOST_WIDE_INT
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
get_frame_size (void)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
return get_func_frame_size (cfun);
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Issue an error message and return TRUE if frame OFFSET overflows in
the signed target pointer arithmetics for function FUNC. Otherwise
return FALSE. */
bool
frame_offset_overflow (HOST_WIDE_INT offset, tree func)
{
unsigned HOST_WIDE_INT size = FRAME_GROWS_DOWNWARD ? -offset : offset;
if (size > ((unsigned HOST_WIDE_INT) 1 << (GET_MODE_BITSIZE (Pmode) - 1))
/* Leave room for the fixed part of the frame. */
- 64 * UNITS_PER_WORD)
{
error ("%Jtotal size of local objects too large", func);
return TRUE;
}
return FALSE;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Allocate a stack slot of SIZE bytes and return a MEM rtx for it
with machine mode MODE.
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
ALIGN controls the amount of alignment for the address of the slot:
0 means according to MODE,
-1 means use BIGGEST_ALIGNMENT and round size to multiple of that,
Merge conflicts for GCC 3.4.4.
2005-06-03 04:02:20 +00:00
-2 means use BITS_PER_UNIT,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
positive specifies alignment boundary in bits.
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
We do not round to stack_boundary here.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
FUNCTION specifies the function to allocate in. */
static rtx
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
assign_stack_local_1 (enum machine_mode mode, HOST_WIDE_INT size, int align,
struct function *function)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
rtx x, addr;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
int bigend_correction = 0;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
unsigned int alignment;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
int frame_off, frame_alignment, frame_phase;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (align == 0)
{
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
tree type;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (mode == BLKmode)
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
alignment = BIGGEST_ALIGNMENT;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
else
alignment = GET_MODE_ALIGNMENT (mode);
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
/* Allow the target to (possibly) increase the alignment of this
stack slot. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
type = lang_hooks.types.type_for_mode (mode, 0);
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
if (type)
alignment = LOCAL_ALIGNMENT (type, alignment);
alignment /= BITS_PER_UNIT;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else if (align == -1)
{
alignment = BIGGEST_ALIGNMENT / BITS_PER_UNIT;
size = CEIL_ROUND (size, alignment);
}
Merge conflicts for GCC 3.4.4.
2005-06-03 04:02:20 +00:00
else if (align == -2)
alignment = 1; /* BITS_PER_UNIT / BITS_PER_UNIT */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
alignment = align / BITS_PER_UNIT;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (FRAME_GROWS_DOWNWARD)
function->x_frame_offset -= size;
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Ignore alignment we can't do with expected alignment of the boundary. */
if (alignment * BITS_PER_UNIT > PREFERRED_STACK_BOUNDARY)
alignment = PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT;
if (function->stack_alignment_needed < alignment * BITS_PER_UNIT)
function->stack_alignment_needed = alignment * BITS_PER_UNIT;
/* Calculate how many bytes the start of local variables is off from
stack alignment. */
frame_alignment = PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT;
frame_off = STARTING_FRAME_OFFSET % frame_alignment;
frame_phase = frame_off ? frame_alignment - frame_off : 0;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* Round the frame offset to the specified alignment. The default is
to always honor requests to align the stack but a port may choose to
do its own stack alignment by defining STACK_ALIGNMENT_NEEDED. */
if (STACK_ALIGNMENT_NEEDED
|| mode != BLKmode
|| size != 0)
{
/* We must be careful here, since FRAME_OFFSET might be negative and
division with a negative dividend isn't as well defined as we might
like. So we instead assume that ALIGNMENT is a power of two and
use logical operations which are unambiguous. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (FRAME_GROWS_DOWNWARD)
function->x_frame_offset
= (FLOOR_ROUND (function->x_frame_offset - frame_phase,
(unsigned HOST_WIDE_INT) alignment)
+ frame_phase);
else
function->x_frame_offset
= (CEIL_ROUND (function->x_frame_offset - frame_phase,
(unsigned HOST_WIDE_INT) alignment)
+ frame_phase);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* On a big-endian machine, if we are allocating more space than we will use,
use the least significant bytes of those that are allocated. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (BYTES_BIG_ENDIAN && mode != BLKmode && GET_MODE_SIZE (mode) < size)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
bigend_correction = size - GET_MODE_SIZE (mode);
/* If we have already instantiated virtual registers, return the actual
address relative to the frame pointer. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (function == cfun && virtuals_instantiated)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
addr = plus_constant (frame_pointer_rtx,
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
trunc_int_for_mode
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
(frame_offset + bigend_correction
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
+ STARTING_FRAME_OFFSET, Pmode));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
addr = plus_constant (virtual_stack_vars_rtx,
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
trunc_int_for_mode
(function->x_frame_offset + bigend_correction,
Pmode));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (!FRAME_GROWS_DOWNWARD)
function->x_frame_offset += size;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
x = gen_rtx_MEM (mode, addr);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
MEM_NOTRAP_P (x) = 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
function->x_stack_slot_list
= gen_rtx_EXPR_LIST (VOIDmode, x, function->x_stack_slot_list);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (frame_offset_overflow (function->x_frame_offset, function->decl))
function->x_frame_offset = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return x;
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Wrapper around assign_stack_local_1; assign a local stack slot for the
current function. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
rtx
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
assign_stack_local (enum machine_mode mode, HOST_WIDE_INT size, int align)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
return assign_stack_local_1 (mode, size, align, cfun);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Removes temporary slot TEMP from LIST. */
static void
cut_slot_from_list (struct temp_slot *temp, struct temp_slot **list)
{
if (temp->next)
temp->next->prev = temp->prev;
if (temp->prev)
temp->prev->next = temp->next;
else
*list = temp->next;
temp->prev = temp->next = NULL;
}
/* Inserts temporary slot TEMP to LIST. */
static void
insert_slot_to_list (struct temp_slot *temp, struct temp_slot **list)
{
temp->next = *list;
if (*list)
(*list)->prev = temp;
temp->prev = NULL;
*list = temp;
}
/* Returns the list of used temp slots at LEVEL. */
static struct temp_slot **
temp_slots_at_level (int level)
{
if (level >= (int) VEC_length (temp_slot_p, used_temp_slots))
{
size_t old_length = VEC_length (temp_slot_p, used_temp_slots);
temp_slot_p *p;
VEC_safe_grow (temp_slot_p, gc, used_temp_slots, level + 1);
p = VEC_address (temp_slot_p, used_temp_slots);
memset (&p[old_length], 0,
sizeof (temp_slot_p) * (level + 1 - old_length));
}
return &(VEC_address (temp_slot_p, used_temp_slots)[level]);
}
/* Returns the maximal temporary slot level. */
static int
max_slot_level (void)
{
if (!used_temp_slots)
return -1;
return VEC_length (temp_slot_p, used_temp_slots) - 1;
}
/* Moves temporary slot TEMP to LEVEL. */
static void
move_slot_to_level (struct temp_slot *temp, int level)
{
cut_slot_from_list (temp, temp_slots_at_level (temp->level));
insert_slot_to_list (temp, temp_slots_at_level (level));
temp->level = level;
}
/* Make temporary slot TEMP available. */
static void
make_slot_available (struct temp_slot *temp)
{
cut_slot_from_list (temp, temp_slots_at_level (temp->level));
insert_slot_to_list (temp, &avail_temp_slots);
temp->in_use = 0;
temp->level = -1;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Allocate a temporary stack slot and record it for possible later
reuse.
MODE is the machine mode to be given to the returned rtx.
SIZE is the size in units of the space required. We do no rounding here
since assign_stack_local will do any required rounding.
KEEP is 1 if this slot is to be retained after a call to
free_temp_slots. Automatic variables for a block are allocated
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
with this flag. KEEP values of 2 or 3 were needed respectively
for variables whose lifetime is controlled by CLEANUP_POINT_EXPRs
or for SAVE_EXPRs, but they are now unused.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
TYPE is the type that will be used for the stack slot. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
rtx
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
assign_stack_temp_for_type (enum machine_mode mode, HOST_WIDE_INT size,
int keep, tree type)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
unsigned int align;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
struct temp_slot *p, *best_p = 0, *selected = NULL, **pp;
Merge FreeBSD modifications into gcc 3.2.1-prerelease: 1.2 a.out support Approved by: obrien
2002-09-01 21:02:41 +00:00
rtx slot;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If SIZE is -1 it means that somebody tried to allocate a temporary
of a variable size. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gcc_assert (size != -1);
/* These are now unused. */
gcc_assert (keep <= 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
if (mode == BLKmode)
align = BIGGEST_ALIGNMENT;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
else
align = GET_MODE_ALIGNMENT (mode);
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
if (! type)
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
type = lang_hooks.types.type_for_mode (mode, 0);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
if (type)
align = LOCAL_ALIGNMENT (type, align);
/* Try to find an available, already-allocated temporary of the proper
mode which meets the size and alignment requirements. Choose the
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
smallest one with the closest alignment.
If assign_stack_temp is called outside of the tree->rtl expansion,
we cannot reuse the stack slots (that may still refer to
VIRTUAL_STACK_VARS_REGNUM). */
if (!virtuals_instantiated)
{
for (p = avail_temp_slots; p; p = p->next)
{
if (p->align >= align && p->size >= size
&& GET_MODE (p->slot) == mode
&& objects_must_conflict_p (p->type, type)
&& (best_p == 0 || best_p->size > p->size
|| (best_p->size == p->size && best_p->align > p->align)))
{
if (p->align == align && p->size == size)
{
selected = p;
cut_slot_from_list (selected, &avail_temp_slots);
best_p = 0;
break;
}
best_p = p;
}
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Make our best, if any, the one to use. */
if (best_p)
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
selected = best_p;
cut_slot_from_list (selected, &avail_temp_slots);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If there are enough aligned bytes left over, make them into a new
temp_slot so that the extra bytes don't get wasted. Do this only
for BLKmode slots, so that we can be sure of the alignment. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (GET_MODE (best_p->slot) == BLKmode)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
int alignment = best_p->align / BITS_PER_UNIT;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
HOST_WIDE_INT rounded_size = CEIL_ROUND (size, alignment);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (best_p->size - rounded_size >= alignment)
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
p = ggc_alloc (sizeof (struct temp_slot));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
p->in_use = p->addr_taken = 0;
p->size = best_p->size - rounded_size;
p->base_offset = best_p->base_offset + rounded_size;
p->full_size = best_p->full_size - rounded_size;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
p->slot = adjust_address_nv (best_p->slot, BLKmode, rounded_size);
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
p->align = best_p->align;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
p->address = 0;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
p->type = best_p->type;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
insert_slot_to_list (p, &avail_temp_slots);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
stack_slot_list = gen_rtx_EXPR_LIST (VOIDmode, p->slot,
stack_slot_list);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
best_p->size = rounded_size;
best_p->full_size = rounded_size;
}
}
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If we still didn't find one, make a new temporary. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (selected == 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
HOST_WIDE_INT frame_offset_old = frame_offset;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
p = ggc_alloc (sizeof (struct temp_slot));
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
/* We are passing an explicit alignment request to assign_stack_local.
One side effect of that is assign_stack_local will not round SIZE
to ensure the frame offset remains suitably aligned.
So for requests which depended on the rounding of SIZE, we go ahead
and round it now. We also make sure ALIGNMENT is at least
BIGGEST_ALIGNMENT. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gcc_assert (mode != BLKmode || align == BIGGEST_ALIGNMENT);
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
p->slot = assign_stack_local (mode,
Merge rev 1.2 (a.out support) into GCC 2.95.2.
1999-11-01 18:56:02 +00:00
(mode == BLKmode
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
? CEIL_ROUND (size, (int) align / BITS_PER_UNIT)
Merge rev 1.2 (a.out support) into GCC 2.95.2.
1999-11-01 18:56:02 +00:00
: size),
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
align);
p->align = align;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* The following slot size computation is necessary because we don't
know the actual size of the temporary slot until assign_stack_local
has performed all the frame alignment and size rounding for the
requested temporary. Note that extra space added for alignment
can be either above or below this stack slot depending on which
way the frame grows. We include the extra space if and only if it
is above this slot. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (FRAME_GROWS_DOWNWARD)
p->size = frame_offset_old - frame_offset;
else
p->size = size;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Now define the fields used by combine_temp_slots. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (FRAME_GROWS_DOWNWARD)
{
p->base_offset = frame_offset;
p->full_size = frame_offset_old - frame_offset;
}
else
{
p->base_offset = frame_offset_old;
p->full_size = frame_offset - frame_offset_old;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
p->address = 0;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
selected = p;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
p = selected;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
p->in_use = 1;
p->addr_taken = 0;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
p->type = type;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
p->level = temp_slot_level;
p->keep = keep;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
pp = temp_slots_at_level (p->level);
insert_slot_to_list (p, pp);
Merge FreeBSD modifications into gcc 3.2.1-prerelease: 1.2 a.out support Approved by: obrien
2002-09-01 21:02:41 +00:00
/* Create a new MEM rtx to avoid clobbering MEM flags of old slots. */
slot = gen_rtx_MEM (mode, XEXP (p->slot, 0));
stack_slot_list = gen_rtx_EXPR_LIST (VOIDmode, slot, stack_slot_list);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If we know the alias set for the memory that will be used, use
it. If there's no TYPE, then we don't know anything about the
alias set for the memory. */
Merge FreeBSD modifications into gcc 3.2.1-prerelease: 1.2 a.out support Approved by: obrien
2002-09-01 21:02:41 +00:00
set_mem_alias_set (slot, type ? get_alias_set (type) : 0);
set_mem_align (slot, align);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If a type is specified, set the relevant flags. */
if (type != 0)
{
Merge FreeBSD modifications into gcc 3.2.1-prerelease: 1.2 a.out support Approved by: obrien
2002-09-01 21:02:41 +00:00
MEM_VOLATILE_P (slot) = TYPE_VOLATILE (type);
MEM_SET_IN_STRUCT_P (slot, AGGREGATE_TYPE_P (type));
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
MEM_NOTRAP_P (slot) = 1;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge FreeBSD modifications into gcc 3.2.1-prerelease: 1.2 a.out support Approved by: obrien
2002-09-01 21:02:41 +00:00
return slot;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
/* Allocate a temporary stack slot and record it for possible later
reuse. First three arguments are same as in preceding function. */
rtx
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
assign_stack_temp (enum machine_mode mode, HOST_WIDE_INT size, int keep)
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
{
return assign_stack_temp_for_type (mode, size, keep, NULL_TREE);
}
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
/* Assign a temporary.
If TYPE_OR_DECL is a decl, then we are doing it on behalf of the decl
and so that should be used in error messages. In either case, we
allocate of the given type.
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
KEEP is as for assign_stack_temp.
MEMORY_REQUIRED is 1 if the result must be addressable stack memory;
it is 0 if a register is OK.
DONT_PROMOTE is 1 if we should not promote values in register
to wider modes. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
rtx
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
assign_temp (tree type_or_decl, int keep, int memory_required,
int dont_promote ATTRIBUTE_UNUSED)
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
{
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
tree type, decl;
enum machine_mode mode;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
#ifdef PROMOTE_MODE
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
int unsignedp;
#endif
if (DECL_P (type_or_decl))
decl = type_or_decl, type = TREE_TYPE (decl);
else
decl = NULL, type = type_or_decl;
mode = TYPE_MODE (type);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
#ifdef PROMOTE_MODE
unsignedp = TYPE_UNSIGNED (type);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
#endif
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
if (mode == BLKmode || memory_required)
{
HOST_WIDE_INT size = int_size_in_bytes (type);
rtx tmp;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Zero sized arrays are GNU C extension. Set size to 1 to avoid
problems with allocating the stack space. */
if (size == 0)
size = 1;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
/* Unfortunately, we don't yet know how to allocate variable-sized
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
temporaries. However, sometimes we can find a fixed upper limit on
the size, so try that instead. */
else if (size == -1)
size = max_int_size_in_bytes (type);
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
/* The size of the temporary may be too large to fit into an integer. */
/* ??? Not sure this should happen except for user silliness, so limit
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
this to things that aren't compiler-generated temporaries. The
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rest of the time we'll die in assign_stack_temp_for_type. */
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
if (decl && size == -1
&& TREE_CODE (TYPE_SIZE_UNIT (type)) == INTEGER_CST)
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
error ("size of variable %q+D is too large", decl);
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
size = 1;
}
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
tmp = assign_stack_temp_for_type (mode, size, keep, type);
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
return tmp;
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
#ifdef PROMOTE_MODE
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
if (! dont_promote)
mode = promote_mode (type, mode, &unsignedp, 0);
#endif
return gen_reg_rtx (mode);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Combine temporary stack slots which are adjacent on the stack.
This allows for better use of already allocated stack space. This is only
done for BLKmode slots because we can be sure that we won't have alignment
problems in this case. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
combine_temp_slots (void)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
struct temp_slot *p, *q, *next, *next_q;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
int num_slots;
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
/* We can't combine slots, because the information about which slot
is in which alias set will be lost. */
if (flag_strict_aliasing)
return;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If there are a lot of temp slots, don't do anything unless
high levels of optimization. */
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
if (! flag_expensive_optimizations)
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (p = avail_temp_slots, num_slots = 0; p; p = p->next, num_slots++)
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
if (num_slots > 100 || (num_slots > 10 && optimize == 0))
return;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (p = avail_temp_slots; p; p = next)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
int delete_p = 0;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
next = p->next;
if (GET_MODE (p->slot) != BLKmode)
continue;
for (q = p->next; q; q = next_q)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
int delete_q = 0;
next_q = q->next;
if (GET_MODE (q->slot) != BLKmode)
continue;
if (p->base_offset + p->full_size == q->base_offset)
{
/* Q comes after P; combine Q into P. */
p->size += q->size;
p->full_size += q->full_size;
delete_q = 1;
}
else if (q->base_offset + q->full_size == p->base_offset)
{
/* P comes after Q; combine P into Q. */
q->size += p->size;
q->full_size += p->full_size;
delete_p = 1;
break;
}
if (delete_q)
cut_slot_from_list (q, &avail_temp_slots);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Either delete P or advance past it. */
if (delete_p)
cut_slot_from_list (p, &avail_temp_slots);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
/* Find the temp slot corresponding to the object at address X. */
static struct temp_slot *
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
find_temp_slot_from_address (rtx x)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
struct temp_slot *p;
rtx next;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
int i;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (i = max_slot_level (); i >= 0; i--)
for (p = *temp_slots_at_level (i); p; p = p->next)
{
if (XEXP (p->slot, 0) == x
|| p->address == x
|| (GET_CODE (x) == PLUS
&& XEXP (x, 0) == virtual_stack_vars_rtx
&& GET_CODE (XEXP (x, 1)) == CONST_INT
&& INTVAL (XEXP (x, 1)) >= p->base_offset
&& INTVAL (XEXP (x, 1)) < p->base_offset + p->full_size))
return p;
else if (p->address != 0 && GET_CODE (p->address) == EXPR_LIST)
for (next = p->address; next; next = XEXP (next, 1))
if (XEXP (next, 0) == x)
return p;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If we have a sum involving a register, see if it points to a temp
slot. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (GET_CODE (x) == PLUS && REG_P (XEXP (x, 0))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
&& (p = find_temp_slot_from_address (XEXP (x, 0))) != 0)
return p;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
else if (GET_CODE (x) == PLUS && REG_P (XEXP (x, 1))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
&& (p = find_temp_slot_from_address (XEXP (x, 1))) != 0)
return p;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return 0;
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Indicate that NEW is an alternate way of referring to the temp slot
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
that previously was known by OLD. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
update_temp_slot_address (rtx old, rtx new)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
struct temp_slot *p;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (rtx_equal_p (old, new))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
p = find_temp_slot_from_address (old);
/* If we didn't find one, see if both OLD is a PLUS. If so, and NEW
is a register, see if one operand of the PLUS is a temporary
location. If so, NEW points into it. Otherwise, if both OLD and
NEW are a PLUS and if there is a register in common between them.
If so, try a recursive call on those values. */
if (p == 0)
{
if (GET_CODE (old) != PLUS)
return;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (REG_P (new))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
update_temp_slot_address (XEXP (old, 0), new);
update_temp_slot_address (XEXP (old, 1), new);
return;
}
else if (GET_CODE (new) != PLUS)
return;
if (rtx_equal_p (XEXP (old, 0), XEXP (new, 0)))
update_temp_slot_address (XEXP (old, 1), XEXP (new, 1));
else if (rtx_equal_p (XEXP (old, 1), XEXP (new, 0)))
update_temp_slot_address (XEXP (old, 0), XEXP (new, 1));
else if (rtx_equal_p (XEXP (old, 0), XEXP (new, 1)))
update_temp_slot_address (XEXP (old, 1), XEXP (new, 0));
else if (rtx_equal_p (XEXP (old, 1), XEXP (new, 1)))
update_temp_slot_address (XEXP (old, 0), XEXP (new, 0));
return;
}
/* Otherwise add an alias for the temp's address. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else if (p->address == 0)
p->address = new;
else
{
if (GET_CODE (p->address) != EXPR_LIST)
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
p->address = gen_rtx_EXPR_LIST (VOIDmode, p->address, NULL_RTX);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
p->address = gen_rtx_EXPR_LIST (VOIDmode, new, p->address);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
/* If X could be a reference to a temporary slot, mark the fact that its
address was taken. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
mark_temp_addr_taken (rtx x)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
struct temp_slot *p;
if (x == 0)
return;
/* If X is not in memory or is at a constant address, it cannot be in
a temporary slot. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (!MEM_P (x) || CONSTANT_P (XEXP (x, 0)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return;
p = find_temp_slot_from_address (XEXP (x, 0));
if (p != 0)
p->addr_taken = 1;
}
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
/* If X could be a reference to a temporary slot, mark that slot as
belonging to the to one level higher than the current level. If X
matched one of our slots, just mark that one. Otherwise, we can't
easily predict which it is, so upgrade all of them. Kept slots
need not be touched.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
This is called when an ({...}) construct occurs and a statement
returns a value in memory. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
preserve_temp_slots (rtx x)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
struct temp_slot *p = 0, *next;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If there is no result, we still might have some objects whose address
were taken, so we need to make sure they stay around. */
if (x == 0)
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (p = *temp_slots_at_level (temp_slot_level); p; p = next)
{
next = p->next;
if (p->addr_taken)
move_slot_to_level (p, temp_slot_level - 1);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return;
}
/* If X is a register that is being used as a pointer, see if we have
a temporary slot we know it points to. To be consistent with
the code below, we really should preserve all non-kept slots
if we can't find a match, but that seems to be much too costly. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (REG_P (x) && REG_POINTER (x))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
p = find_temp_slot_from_address (x);
/* If X is not in memory or is at a constant address, it cannot be in
a temporary slot, but it can contain something whose address was
taken. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (p == 0 && (!MEM_P (x) || CONSTANT_P (XEXP (x, 0))))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (p = *temp_slots_at_level (temp_slot_level); p; p = next)
{
next = p->next;
if (p->addr_taken)
move_slot_to_level (p, temp_slot_level - 1);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return;
}
/* First see if we can find a match. */
if (p == 0)
p = find_temp_slot_from_address (XEXP (x, 0));
if (p != 0)
{
/* Move everything at our level whose address was taken to our new
level in case we used its address. */
struct temp_slot *q;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
if (p->level == temp_slot_level)
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (q = *temp_slots_at_level (temp_slot_level); q; q = next)
{
next = q->next;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (p != q && q->addr_taken)
move_slot_to_level (q, temp_slot_level - 1);
}
move_slot_to_level (p, temp_slot_level - 1);
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
p->addr_taken = 0;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return;
}
/* Otherwise, preserve all non-kept slots at this level. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (p = *temp_slots_at_level (temp_slot_level); p; p = next)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
next = p->next;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (!p->keep)
move_slot_to_level (p, temp_slot_level - 1);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Free all temporaries used so far. This is normally called at the
end of generating code for a statement. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
free_temp_slots (void)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
struct temp_slot *p, *next;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (p = *temp_slots_at_level (temp_slot_level); p; p = next)
{
next = p->next;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (!p->keep)
make_slot_available (p);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
combine_temp_slots ();
}
/* Push deeper into the nesting level for stack temporaries. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
push_temp_slots (void)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
temp_slot_level++;
}
/* Pop a temporary nesting level. All slots in use in the current level
are freed. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
pop_temp_slots (void)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
struct temp_slot *p, *next;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (p = *temp_slots_at_level (temp_slot_level); p; p = next)
{
next = p->next;
make_slot_available (p);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
combine_temp_slots ();
temp_slot_level--;
}
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
/* Initialize temporary slots. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
init_temp_slots (void)
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
{
/* We have not allocated any temporaries yet. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
avail_temp_slots = 0;
used_temp_slots = 0;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
temp_slot_level = 0;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* These routines are responsible for converting virtual register references
to the actual hard register references once RTL generation is complete.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
The following four variables are used for communication between the
routines. They contain the offsets of the virtual registers from their
respective hard registers. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static int in_arg_offset;
static int var_offset;
static int dynamic_offset;
static int out_arg_offset;
static int cfa_offset;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* In most machines, the stack pointer register is equivalent to the bottom
of the stack. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
#ifndef STACK_POINTER_OFFSET
#define STACK_POINTER_OFFSET 0
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
#endif
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If not defined, pick an appropriate default for the offset of dynamically
allocated memory depending on the value of ACCUMULATE_OUTGOING_ARGS,
REG_PARM_STACK_SPACE, and OUTGOING_REG_PARM_STACK_SPACE. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
#ifndef STACK_DYNAMIC_OFFSET
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* The bottom of the stack points to the actual arguments. If
REG_PARM_STACK_SPACE is defined, this includes the space for the register
parameters. However, if OUTGOING_REG_PARM_STACK space is not defined,
stack space for register parameters is not pushed by the caller, but
rather part of the fixed stack areas and hence not included in
`current_function_outgoing_args_size'. Nevertheless, we must allow
for it when allocating stack dynamic objects. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
#if defined(REG_PARM_STACK_SPACE) && ! defined(OUTGOING_REG_PARM_STACK_SPACE)
#define STACK_DYNAMIC_OFFSET(FNDECL) \
((ACCUMULATE_OUTGOING_ARGS \
? (current_function_outgoing_args_size + REG_PARM_STACK_SPACE (FNDECL)) : 0)\
+ (STACK_POINTER_OFFSET)) \
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
#else
#define STACK_DYNAMIC_OFFSET(FNDECL) \
((ACCUMULATE_OUTGOING_ARGS ? current_function_outgoing_args_size : 0) \
+ (STACK_POINTER_OFFSET))
#endif
#endif
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Given a piece of RTX and a pointer to a HOST_WIDE_INT, if the RTX
is a virtual register, return the equivalent hard register and set the
offset indirectly through the pointer. Otherwise, return 0. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static rtx
instantiate_new_reg (rtx x, HOST_WIDE_INT *poffset)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx new;
HOST_WIDE_INT offset;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (x == virtual_incoming_args_rtx)
new = arg_pointer_rtx, offset = in_arg_offset;
else if (x == virtual_stack_vars_rtx)
new = frame_pointer_rtx, offset = var_offset;
else if (x == virtual_stack_dynamic_rtx)
new = stack_pointer_rtx, offset = dynamic_offset;
else if (x == virtual_outgoing_args_rtx)
new = stack_pointer_rtx, offset = out_arg_offset;
else if (x == virtual_cfa_rtx)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
#ifdef FRAME_POINTER_CFA_OFFSET
new = frame_pointer_rtx;
#else
new = arg_pointer_rtx;
#endif
offset = cfa_offset;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
else
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
return NULL_RTX;
*poffset = offset;
return new;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* A subroutine of instantiate_virtual_regs, called via for_each_rtx.
Instantiate any virtual registers present inside of *LOC. The expression
is simplified, as much as possible, but is not to be considered "valid"
in any sense implied by the target. If any change is made, set CHANGED
to true. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static int
instantiate_virtual_regs_in_rtx (rtx *loc, void *data)
{
HOST_WIDE_INT offset;
bool *changed = (bool *) data;
rtx x, new;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
x = *loc;
if (x == 0)
return 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
switch (GET_CODE (x))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
case REG:
new = instantiate_new_reg (x, &offset);
if (new)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
*loc = plus_constant (new, offset);
if (changed)
*changed = true;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
return -1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
case PLUS:
new = instantiate_new_reg (XEXP (x, 0), &offset);
if (new)
{
new = plus_constant (new, offset);
*loc = simplify_gen_binary (PLUS, GET_MODE (x), new, XEXP (x, 1));
if (changed)
*changed = true;
return -1;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* FIXME -- from old code */
/* If we have (plus (subreg (virtual-reg)) (const_int)), we know
we can commute the PLUS and SUBREG because pointers into the
frame are well-behaved. */
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
default:
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
return 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* A subroutine of instantiate_virtual_regs_in_insn. Return true if X
matches the predicate for insn CODE operand OPERAND. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static int
safe_insn_predicate (int code, int operand, rtx x)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
const struct insn_operand_data *op_data;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (code < 0)
return true;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
op_data = &insn_data[code].operand[operand];
if (op_data->predicate == NULL)
return true;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
return op_data->predicate (x, op_data->mode);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* A subroutine of instantiate_virtual_regs. Instantiate any virtual
registers present inside of insn. The result will be a valid insn. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
static void
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
instantiate_virtual_regs_in_insn (rtx insn)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
HOST_WIDE_INT offset;
int insn_code, i;
bool any_change = false;
rtx set, new, x, seq;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* There are some special cases to be handled first. */
set = single_set (insn);
if (set)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* We're allowed to assign to a virtual register. This is interpreted
to mean that the underlying register gets assigned the inverse
transformation. This is used, for example, in the handling of
non-local gotos. */
new = instantiate_new_reg (SET_DEST (set), &offset);
if (new)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
start_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for_each_rtx (&SET_SRC (set), instantiate_virtual_regs_in_rtx, NULL);
x = simplify_gen_binary (PLUS, GET_MODE (new), SET_SRC (set),
GEN_INT (-offset));
x = force_operand (x, new);
if (x != new)
emit_move_insn (new, x);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
seq = get_insns ();
end_sequence ();
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
emit_insn_before (seq, insn);
delete_insn (insn);
return;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Handle a straight copy from a virtual register by generating a
new add insn. The difference between this and falling through
to the generic case is avoiding a new pseudo and eliminating a
move insn in the initial rtl stream. */
new = instantiate_new_reg (SET_SRC (set), &offset);
if (new && offset != 0
&& REG_P (SET_DEST (set))
&& REGNO (SET_DEST (set)) > LAST_VIRTUAL_REGISTER)
{
start_sequence ();
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
x = expand_simple_binop (GET_MODE (SET_DEST (set)), PLUS,
new, GEN_INT (offset), SET_DEST (set),
1, OPTAB_LIB_WIDEN);
if (x != SET_DEST (set))
emit_move_insn (SET_DEST (set), x);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
seq = get_insns ();
end_sequence ();
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
emit_insn_before (seq, insn);
delete_insn (insn);
return;
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
extract_insn (insn);
insn_code = INSN_CODE (insn);
/* Handle a plus involving a virtual register by determining if the
operands remain valid if they're modified in place. */
if (GET_CODE (SET_SRC (set)) == PLUS
&& recog_data.n_operands >= 3
&& recog_data.operand_loc[1] == &XEXP (SET_SRC (set), 0)
&& recog_data.operand_loc[2] == &XEXP (SET_SRC (set), 1)
&& GET_CODE (recog_data.operand[2]) == CONST_INT
&& (new = instantiate_new_reg (recog_data.operand[1], &offset)))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
offset += INTVAL (recog_data.operand[2]);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If the sum is zero, then replace with a plain move. */
if (offset == 0
&& REG_P (SET_DEST (set))
&& REGNO (SET_DEST (set)) > LAST_VIRTUAL_REGISTER)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
start_sequence ();
emit_move_insn (SET_DEST (set), new);
seq = get_insns ();
end_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
emit_insn_before (seq, insn);
delete_insn (insn);
return;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
x = gen_int_mode (offset, recog_data.operand_mode[2]);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Using validate_change and apply_change_group here leaves
recog_data in an invalid state. Since we know exactly what
we want to check, do those two by hand. */
if (safe_insn_predicate (insn_code, 1, new)
&& safe_insn_predicate (insn_code, 2, x))
{
*recog_data.operand_loc[1] = recog_data.operand[1] = new;
*recog_data.operand_loc[2] = recog_data.operand[2] = x;
any_change = true;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Fall through into the regular operand fixup loop in
order to take care of operands other than 1 and 2. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
else
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
extract_insn (insn);
insn_code = INSN_CODE (insn);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* In the general case, we expect virtual registers to appear only in
operands, and then only as either bare registers or inside memories. */
for (i = 0; i < recog_data.n_operands; ++i)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
x = recog_data.operand[i];
switch (GET_CODE (x))
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
case MEM:
{
rtx addr = XEXP (x, 0);
bool changed = false;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for_each_rtx (&addr, instantiate_virtual_regs_in_rtx, &changed);
if (!changed)
continue;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
start_sequence ();
x = replace_equiv_address (x, addr);
seq = get_insns ();
end_sequence ();
if (seq)
emit_insn_before (seq, insn);
}
break;
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
case REG:
new = instantiate_new_reg (x, &offset);
if (new == NULL)
continue;
if (offset == 0)
x = new;
else
{
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
start_sequence ();
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Careful, special mode predicates may have stuff in
insn_data[insn_code].operand[i].mode that isn't useful
to us for computing a new value. */
/* ??? Recognize address_operand and/or "p" constraints
to see if (plus new offset) is a valid before we put
this through expand_simple_binop. */
x = expand_simple_binop (GET_MODE (x), PLUS, new,
GEN_INT (offset), NULL_RTX,
1, OPTAB_LIB_WIDEN);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
seq = get_insns ();
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
end_sequence ();
emit_insn_before (seq, insn);
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
case SUBREG:
new = instantiate_new_reg (SUBREG_REG (x), &offset);
if (new == NULL)
continue;
if (offset != 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
start_sequence ();
new = expand_simple_binop (GET_MODE (new), PLUS, new,
GEN_INT (offset), NULL_RTX,
1, OPTAB_LIB_WIDEN);
seq = get_insns ();
end_sequence ();
emit_insn_before (seq, insn);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
x = simplify_gen_subreg (recog_data.operand_mode[i], new,
GET_MODE (new), SUBREG_BYTE (x));
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
default:
continue;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* At this point, X contains the new value for the operand.
Validate the new value vs the insn predicate. Note that
asm insns will have insn_code -1 here. */
if (!safe_insn_predicate (insn_code, i, x))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
start_sequence ();
x = force_reg (insn_data[insn_code].operand[i].mode, x);
seq = get_insns ();
end_sequence ();
if (seq)
emit_insn_before (seq, insn);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
*recog_data.operand_loc[i] = recog_data.operand[i] = x;
any_change = true;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (any_change)
{
/* Propagate operand changes into the duplicates. */
for (i = 0; i < recog_data.n_dups; ++i)
*recog_data.dup_loc[i]
= recog_data.operand[(unsigned)recog_data.dup_num[i]];
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Force re-recognition of the instruction for validation. */
INSN_CODE (insn) = -1;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (asm_noperands (PATTERN (insn)) >= 0)
{
if (!check_asm_operands (PATTERN (insn)))
{
error_for_asm (insn, "impossible constraint in %<asm%>");
delete_insn (insn);
}
}
else
{
if (recog_memoized (insn) < 0)
fatal_insn_not_found (insn);
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Subroutine of instantiate_decls. Given RTL representing a decl,
do any instantiation required. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static void
instantiate_decl (rtx x)
{
rtx addr;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (x == 0)
return;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If this is a CONCAT, recurse for the pieces. */
if (GET_CODE (x) == CONCAT)
{
instantiate_decl (XEXP (x, 0));
instantiate_decl (XEXP (x, 1));
return;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If this is not a MEM, no need to do anything. Similarly if the
address is a constant or a register that is not a virtual register. */
if (!MEM_P (x))
return;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
addr = XEXP (x, 0);
if (CONSTANT_P (addr)
|| (REG_P (addr)
&& (REGNO (addr) < FIRST_VIRTUAL_REGISTER
|| REGNO (addr) > LAST_VIRTUAL_REGISTER)))
return;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for_each_rtx (&XEXP (x, 0), instantiate_virtual_regs_in_rtx, NULL);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Helper for instantiate_decls called via walk_tree: Process all decls
in the given DECL_VALUE_EXPR. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static tree
instantiate_expr (tree *tp, int *walk_subtrees, void *data ATTRIBUTE_UNUSED)
{
tree t = *tp;
if (! EXPR_P (t))
{
*walk_subtrees = 0;
if (DECL_P (t) && DECL_RTL_SET_P (t))
instantiate_decl (DECL_RTL (t));
}
return NULL;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Subroutine of instantiate_decls: Process all decls in the given
BLOCK node and all its subblocks. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static void
instantiate_decls_1 (tree let)
{
tree t;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (t = BLOCK_VARS (let); t; t = TREE_CHAIN (t))
{
if (DECL_RTL_SET_P (t))
instantiate_decl (DECL_RTL (t));
if (TREE_CODE (t) == VAR_DECL && DECL_HAS_VALUE_EXPR_P (t))
{
tree v = DECL_VALUE_EXPR (t);
walk_tree (&v, instantiate_expr, NULL, NULL);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Process all subblocks. */
for (t = BLOCK_SUBBLOCKS (let); t; t = TREE_CHAIN (t))
instantiate_decls_1 (t);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Scan all decls in FNDECL (both variables and parameters) and instantiate
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
all virtual registers in their DECL_RTL's. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
static void
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
instantiate_decls (tree fndecl)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
tree decl;
/* Process all parameters of the function. */
for (decl = DECL_ARGUMENTS (fndecl); decl; decl = TREE_CHAIN (decl))
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
instantiate_decl (DECL_RTL (decl));
instantiate_decl (DECL_INCOMING_RTL (decl));
if (DECL_HAS_VALUE_EXPR_P (decl))
{
tree v = DECL_VALUE_EXPR (decl);
walk_tree (&v, instantiate_expr, NULL, NULL);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
/* Now process all variables defined in the function or its subblocks. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
instantiate_decls_1 (DECL_INITIAL (fndecl));
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Pass through the INSNS of function FNDECL and convert virtual register
references to hard register references. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static unsigned int
instantiate_virtual_regs (void)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx insn;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Compute the offsets to use for this function. */
in_arg_offset = FIRST_PARM_OFFSET (current_function_decl);
var_offset = STARTING_FRAME_OFFSET;
dynamic_offset = STACK_DYNAMIC_OFFSET (current_function_decl);
out_arg_offset = STACK_POINTER_OFFSET;
#ifdef FRAME_POINTER_CFA_OFFSET
cfa_offset = FRAME_POINTER_CFA_OFFSET (current_function_decl);
#else
cfa_offset = ARG_POINTER_CFA_OFFSET (current_function_decl);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Initialize recognition, indicating that volatile is OK. */
init_recog ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Scan through all the insns, instantiating every virtual register still
present. */
for (insn = get_insns (); insn; insn = NEXT_INSN (insn))
if (INSN_P (insn))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* These patterns in the instruction stream can never be recognized.
Fortunately, they shouldn't contain virtual registers either. */
if (GET_CODE (PATTERN (insn)) == USE
|| GET_CODE (PATTERN (insn)) == CLOBBER
|| GET_CODE (PATTERN (insn)) == ADDR_VEC
|| GET_CODE (PATTERN (insn)) == ADDR_DIFF_VEC
|| GET_CODE (PATTERN (insn)) == ASM_INPUT)
continue;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
instantiate_virtual_regs_in_insn (insn);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (INSN_DELETED_P (insn))
continue;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for_each_rtx (&REG_NOTES (insn), instantiate_virtual_regs_in_rtx, NULL);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Instantiate any virtual registers in CALL_INSN_FUNCTION_USAGE. */
if (GET_CODE (insn) == CALL_INSN)
for_each_rtx (&CALL_INSN_FUNCTION_USAGE (insn),
instantiate_virtual_regs_in_rtx, NULL);
}
/* Instantiate the virtual registers in the DECLs for debugging purposes. */
instantiate_decls (current_function_decl);
/* Indicate that, from now on, assign_stack_local should use
frame_pointer_rtx. */
virtuals_instantiated = 1;
return 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
struct tree_opt_pass pass_instantiate_virtual_regs =
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
"vregs", /* name */
NULL, /* gate */
instantiate_virtual_regs, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
0, /* tv_id */
0, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
TODO_dump_func, /* todo_flags_finish */
0 /* letter */
};
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Return 1 if EXP is an aggregate type (or a value with aggregate type).
This means a type for which function calls must pass an address to the
function or get an address back from the function.
EXP may be a type node or an expression (whose type is tested). */
int
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
aggregate_value_p (tree exp, tree fntype)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
int i, regno, nregs;
rtx reg;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
tree type = (TYPE_P (exp)) ? exp : TREE_TYPE (exp);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* DECL node associated with FNTYPE when relevant, which we might need to
check for by-invisible-reference returns, typically for CALL_EXPR input
EXPressions. */
tree fndecl = NULL_TREE;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
if (fntype)
switch (TREE_CODE (fntype))
{
case CALL_EXPR:
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
fndecl = get_callee_fndecl (fntype);
fntype = fndecl ? TREE_TYPE (fndecl) : 0;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
break;
case FUNCTION_DECL:
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
fndecl = fntype;
fntype = TREE_TYPE (fndecl);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
break;
case FUNCTION_TYPE:
case METHOD_TYPE:
break;
case IDENTIFIER_NODE:
fntype = 0;
break;
default:
/* We don't expect other rtl types here. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gcc_unreachable ();
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (TREE_CODE (type) == VOID_TYPE)
return 0;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If the front end has decided that this needs to be passed by
reference, do so. */
if ((TREE_CODE (exp) == PARM_DECL || TREE_CODE (exp) == RESULT_DECL)
&& DECL_BY_REFERENCE (exp))
return 1;
/* If the EXPression is a CALL_EXPR, honor DECL_BY_REFERENCE set on the
called function RESULT_DECL, meaning the function returns in memory by
invisible reference. This check lets front-ends not set TREE_ADDRESSABLE
on the function type, which used to be the way to request such a return
mechanism but might now be causing troubles at gimplification time if
temporaries with the function type need to be created. */
if (TREE_CODE (exp) == CALL_EXPR && fndecl && DECL_RESULT (fndecl)
&& DECL_BY_REFERENCE (DECL_RESULT (fndecl)))
return 1;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
if (targetm.calls.return_in_memory (type, fntype))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return 1;
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
/* Types that are TREE_ADDRESSABLE must be constructed in memory,
and thus can't be returned in registers. */
if (TREE_ADDRESSABLE (type))
return 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (flag_pcc_struct_return && AGGREGATE_TYPE_P (type))
return 1;
/* Make sure we have suitable call-clobbered regs to return
the value in; if not, we must return it in memory. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
reg = hard_function_value (type, 0, fntype, 0);
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
/* If we have something other than a REG (e.g. a PARALLEL), then assume
it is OK. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (!REG_P (reg))
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
return 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
regno = REGNO (reg);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
nregs = hard_regno_nregs[regno][TYPE_MODE (type)];
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
for (i = 0; i < nregs; i++)
if (! call_used_regs[regno + i])
return 1;
return 0;
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Return true if we should assign DECL a pseudo register; false if it
should live on the local stack. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
bool
use_register_for_decl (tree decl)
{
/* Honor volatile. */
if (TREE_SIDE_EFFECTS (decl))
return false;
/* Honor addressability. */
if (TREE_ADDRESSABLE (decl))
return false;
/* Only register-like things go in registers. */
if (DECL_MODE (decl) == BLKmode)
return false;
/* If -ffloat-store specified, don't put explicit float variables
into registers. */
/* ??? This should be checked after DECL_ARTIFICIAL, but tree-ssa
propagates values across these stores, and it probably shouldn't. */
if (flag_float_store && FLOAT_TYPE_P (TREE_TYPE (decl)))
return false;
/* If we're not interested in tracking debugging information for
this decl, then we can certainly put it in a register. */
if (DECL_IGNORED_P (decl))
return true;
return (optimize || DECL_REGISTER (decl));
}
/* Return true if TYPE should be passed by invisible reference. */
bool
pass_by_reference (CUMULATIVE_ARGS *ca, enum machine_mode mode,
tree type, bool named_arg)
{
if (type)
{
/* If this type contains non-trivial constructors, then it is
forbidden for the middle-end to create any new copies. */
if (TREE_ADDRESSABLE (type))
return true;
/* GCC post 3.4 passes *all* variable sized types by reference. */
if (!TYPE_SIZE (type) || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
return true;
}
return targetm.calls.pass_by_reference (ca, mode, type, named_arg);
}
/* Return true if TYPE, which is passed by reference, should be callee
copied instead of caller copied. */
bool
reference_callee_copied (CUMULATIVE_ARGS *ca, enum machine_mode mode,
tree type, bool named_arg)
{
if (type && TREE_ADDRESSABLE (type))
return false;
return targetm.calls.callee_copies (ca, mode, type, named_arg);
}
/* Structures to communicate between the subroutines of assign_parms.
The first holds data persistent across all parameters, the second
is cleared out for each parameter. */
struct assign_parm_data_all
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
CUMULATIVE_ARGS args_so_far;
struct args_size stack_args_size;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
tree function_result_decl;
tree orig_fnargs;
rtx conversion_insns;
HOST_WIDE_INT pretend_args_size;
HOST_WIDE_INT extra_pretend_bytes;
int reg_parm_stack_space;
};
struct assign_parm_data_one
{
tree nominal_type;
tree passed_type;
rtx entry_parm;
rtx stack_parm;
enum machine_mode nominal_mode;
enum machine_mode passed_mode;
enum machine_mode promoted_mode;
struct locate_and_pad_arg_data locate;
int partial;
BOOL_BITFIELD named_arg : 1;
BOOL_BITFIELD passed_pointer : 1;
BOOL_BITFIELD on_stack : 1;
BOOL_BITFIELD loaded_in_reg : 1;
};
/* A subroutine of assign_parms. Initialize ALL. */
static void
assign_parms_initialize_all (struct assign_parm_data_all *all)
{
tree fntype;
memset (all, 0, sizeof (*all));
fntype = TREE_TYPE (current_function_decl);
#ifdef INIT_CUMULATIVE_INCOMING_ARGS
INIT_CUMULATIVE_INCOMING_ARGS (all->args_so_far, fntype, NULL_RTX);
#else
INIT_CUMULATIVE_ARGS (all->args_so_far, fntype, NULL_RTX,
current_function_decl, -1);
#endif
#ifdef REG_PARM_STACK_SPACE
all->reg_parm_stack_space = REG_PARM_STACK_SPACE (current_function_decl);
#endif
}
/* If ARGS contains entries with complex types, split the entry into two
entries of the component type. Return a new list of substitutions are
needed, else the old list. */
static tree
split_complex_args (tree args)
{
tree p;
/* Before allocating memory, check for the common case of no complex. */
for (p = args; p; p = TREE_CHAIN (p))
{
tree type = TREE_TYPE (p);
if (TREE_CODE (type) == COMPLEX_TYPE
&& targetm.calls.split_complex_arg (type))
goto found;
}
return args;
found:
args = copy_list (args);
for (p = args; p; p = TREE_CHAIN (p))
{
tree type = TREE_TYPE (p);
if (TREE_CODE (type) == COMPLEX_TYPE
&& targetm.calls.split_complex_arg (type))
{
tree decl;
tree subtype = TREE_TYPE (type);
bool addressable = TREE_ADDRESSABLE (p);
/* Rewrite the PARM_DECL's type with its component. */
TREE_TYPE (p) = subtype;
DECL_ARG_TYPE (p) = TREE_TYPE (DECL_ARG_TYPE (p));
DECL_MODE (p) = VOIDmode;
DECL_SIZE (p) = NULL;
DECL_SIZE_UNIT (p) = NULL;
/* If this arg must go in memory, put it in a pseudo here.
We can't allow it to go in memory as per normal parms,
because the usual place might not have the imag part
adjacent to the real part. */
DECL_ARTIFICIAL (p) = addressable;
DECL_IGNORED_P (p) = addressable;
TREE_ADDRESSABLE (p) = 0;
layout_decl (p, 0);
/* Build a second synthetic decl. */
decl = build_decl (PARM_DECL, NULL_TREE, subtype);
DECL_ARG_TYPE (decl) = DECL_ARG_TYPE (p);
DECL_ARTIFICIAL (decl) = addressable;
DECL_IGNORED_P (decl) = addressable;
layout_decl (decl, 0);
/* Splice it in; skip the new decl. */
TREE_CHAIN (decl) = TREE_CHAIN (p);
TREE_CHAIN (p) = decl;
p = decl;
}
}
return args;
}
/* A subroutine of assign_parms. Adjust the parameter list to incorporate
the hidden struct return argument, and (abi willing) complex args.
Return the new parameter list. */
static tree
assign_parms_augmented_arg_list (struct assign_parm_data_all *all)
{
tree fndecl = current_function_decl;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree fntype = TREE_TYPE (fndecl);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
tree fnargs = DECL_ARGUMENTS (fndecl);
/* If struct value address is treated as the first argument, make it so. */
if (aggregate_value_p (DECL_RESULT (fndecl), fndecl)
&& ! current_function_returns_pcc_struct
&& targetm.calls.struct_value_rtx (TREE_TYPE (fndecl), 1) == 0)
{
tree type = build_pointer_type (TREE_TYPE (fntype));
tree decl;
decl = build_decl (PARM_DECL, NULL_TREE, type);
DECL_ARG_TYPE (decl) = type;
DECL_ARTIFICIAL (decl) = 1;
DECL_IGNORED_P (decl) = 1;
TREE_CHAIN (decl) = fnargs;
fnargs = decl;
all->function_result_decl = decl;
}
all->orig_fnargs = fnargs;
/* If the target wants to split complex arguments into scalars, do so. */
if (targetm.calls.split_complex_arg)
fnargs = split_complex_args (fnargs);
return fnargs;
}
/* A subroutine of assign_parms. Examine PARM and pull out type and mode
data for the parameter. Incorporate ABI specifics such as pass-by-
reference and type promotion. */
static void
assign_parm_find_data_types (struct assign_parm_data_all *all, tree parm,
struct assign_parm_data_one *data)
{
tree nominal_type, passed_type;
enum machine_mode nominal_mode, passed_mode, promoted_mode;
memset (data, 0, sizeof (*data));
/* NAMED_ARG is a mis-nomer. We really mean 'non-varadic'. */
if (!current_function_stdarg)
data->named_arg = 1; /* No varadic parms. */
else if (TREE_CHAIN (parm))
data->named_arg = 1; /* Not the last non-varadic parm. */
else if (targetm.calls.strict_argument_naming (&all->args_so_far))
data->named_arg = 1; /* Only varadic ones are unnamed. */
else
data->named_arg = 0; /* Treat as varadic. */
nominal_type = TREE_TYPE (parm);
passed_type = DECL_ARG_TYPE (parm);
/* Look out for errors propagating this far. Also, if the parameter's
type is void then its value doesn't matter. */
if (TREE_TYPE (parm) == error_mark_node
/* This can happen after weird syntax errors
or if an enum type is defined among the parms. */
|| TREE_CODE (parm) != PARM_DECL
|| passed_type == NULL
|| VOID_TYPE_P (nominal_type))
{
nominal_type = passed_type = void_type_node;
nominal_mode = passed_mode = promoted_mode = VOIDmode;
goto egress;
}
/* Find mode of arg as it is passed, and mode of arg as it should be
during execution of this function. */
passed_mode = TYPE_MODE (passed_type);
nominal_mode = TYPE_MODE (nominal_type);
/* If the parm is to be passed as a transparent union, use the type of
the first field for the tests below. We have already verified that
the modes are the same. */
if (TREE_CODE (passed_type) == UNION_TYPE
&& TYPE_TRANSPARENT_UNION (passed_type))
passed_type = TREE_TYPE (TYPE_FIELDS (passed_type));
/* See if this arg was passed by invisible reference. */
if (pass_by_reference (&all->args_so_far, passed_mode,
passed_type, data->named_arg))
{
passed_type = nominal_type = build_pointer_type (passed_type);
data->passed_pointer = true;
passed_mode = nominal_mode = Pmode;
}
/* Find mode as it is passed by the ABI. */
promoted_mode = passed_mode;
if (targetm.calls.promote_function_args (TREE_TYPE (current_function_decl)))
{
int unsignedp = TYPE_UNSIGNED (passed_type);
promoted_mode = promote_mode (passed_type, promoted_mode,
&unsignedp, 1);
}
egress:
data->nominal_type = nominal_type;
data->passed_type = passed_type;
data->nominal_mode = nominal_mode;
data->passed_mode = passed_mode;
data->promoted_mode = promoted_mode;
}
/* A subroutine of assign_parms. Invoke setup_incoming_varargs. */
static void
assign_parms_setup_varargs (struct assign_parm_data_all *all,
struct assign_parm_data_one *data, bool no_rtl)
{
int varargs_pretend_bytes = 0;
targetm.calls.setup_incoming_varargs (&all->args_so_far,
data->promoted_mode,
data->passed_type,
&varargs_pretend_bytes, no_rtl);
/* If the back-end has requested extra stack space, record how much is
needed. Do not change pretend_args_size otherwise since it may be
nonzero from an earlier partial argument. */
if (varargs_pretend_bytes > 0)
all->pretend_args_size = varargs_pretend_bytes;
}
/* A subroutine of assign_parms. Set DATA->ENTRY_PARM corresponding to
the incoming location of the current parameter. */
static void
assign_parm_find_entry_rtl (struct assign_parm_data_all *all,
struct assign_parm_data_one *data)
{
HOST_WIDE_INT pretend_bytes = 0;
rtx entry_parm;
bool in_regs;
if (data->promoted_mode == VOIDmode)
{
data->entry_parm = data->stack_parm = const0_rtx;
return;
}
#ifdef FUNCTION_INCOMING_ARG
entry_parm = FUNCTION_INCOMING_ARG (all->args_so_far, data->promoted_mode,
data->passed_type, data->named_arg);
#else
entry_parm = FUNCTION_ARG (all->args_so_far, data->promoted_mode,
data->passed_type, data->named_arg);
#endif
if (entry_parm == 0)
data->promoted_mode = data->passed_mode;
/* Determine parm's home in the stack, in case it arrives in the stack
or we should pretend it did. Compute the stack position and rtx where
the argument arrives and its size.
There is one complexity here: If this was a parameter that would
have been passed in registers, but wasn't only because it is
__builtin_va_alist, we want locate_and_pad_parm to treat it as if
it came in a register so that REG_PARM_STACK_SPACE isn't skipped.
In this case, we call FUNCTION_ARG with NAMED set to 1 instead of 0
as it was the previous time. */
in_regs = entry_parm != 0;
#ifdef STACK_PARMS_IN_REG_PARM_AREA
in_regs = true;
#endif
if (!in_regs && !data->named_arg)
{
if (targetm.calls.pretend_outgoing_varargs_named (&all->args_so_far))
{
rtx tem;
#ifdef FUNCTION_INCOMING_ARG
tem = FUNCTION_INCOMING_ARG (all->args_so_far, data->promoted_mode,
data->passed_type, true);
#else
tem = FUNCTION_ARG (all->args_so_far, data->promoted_mode,
data->passed_type, true);
#endif
in_regs = tem != NULL;
}
}
/* If this parameter was passed both in registers and in the stack, use
the copy on the stack. */
if (targetm.calls.must_pass_in_stack (data->promoted_mode,
data->passed_type))
entry_parm = 0;
if (entry_parm)
{
int partial;
partial = targetm.calls.arg_partial_bytes (&all->args_so_far,
data->promoted_mode,
data->passed_type,
data->named_arg);
data->partial = partial;
/* The caller might already have allocated stack space for the
register parameters. */
if (partial != 0 && all->reg_parm_stack_space == 0)
{
/* Part of this argument is passed in registers and part
is passed on the stack. Ask the prologue code to extend
the stack part so that we can recreate the full value.
PRETEND_BYTES is the size of the registers we need to store.
CURRENT_FUNCTION_PRETEND_ARGS_SIZE is the amount of extra
stack space that the prologue should allocate.
Internally, gcc assumes that the argument pointer is aligned
to STACK_BOUNDARY bits. This is used both for alignment
optimizations (see init_emit) and to locate arguments that are
aligned to more than PARM_BOUNDARY bits. We must preserve this
invariant by rounding CURRENT_FUNCTION_PRETEND_ARGS_SIZE up to
a stack boundary. */
/* We assume at most one partial arg, and it must be the first
argument on the stack. */
gcc_assert (!all->extra_pretend_bytes && !all->pretend_args_size);
pretend_bytes = partial;
all->pretend_args_size = CEIL_ROUND (pretend_bytes, STACK_BYTES);
/* We want to align relative to the actual stack pointer, so
don't include this in the stack size until later. */
all->extra_pretend_bytes = all->pretend_args_size;
}
}
locate_and_pad_parm (data->promoted_mode, data->passed_type, in_regs,
entry_parm ? data->partial : 0, current_function_decl,
&all->stack_args_size, &data->locate);
/* Adjust offsets to include the pretend args. */
pretend_bytes = all->extra_pretend_bytes - pretend_bytes;
data->locate.slot_offset.constant += pretend_bytes;
data->locate.offset.constant += pretend_bytes;
data->entry_parm = entry_parm;
}
/* A subroutine of assign_parms. If there is actually space on the stack
for this parm, count it in stack_args_size and return true. */
static bool
assign_parm_is_stack_parm (struct assign_parm_data_all *all,
struct assign_parm_data_one *data)
{
/* Trivially true if we've no incoming register. */
if (data->entry_parm == NULL)
;
/* Also true if we're partially in registers and partially not,
since we've arranged to drop the entire argument on the stack. */
else if (data->partial != 0)
;
/* Also true if the target says that it's passed in both registers
and on the stack. */
else if (GET_CODE (data->entry_parm) == PARALLEL
&& XEXP (XVECEXP (data->entry_parm, 0, 0), 0) == NULL_RTX)
;
/* Also true if the target says that there's stack allocated for
all register parameters. */
else if (all->reg_parm_stack_space > 0)
;
/* Otherwise, no, this parameter has no ABI defined stack slot. */
else
return false;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
all->stack_args_size.constant += data->locate.size.constant;
if (data->locate.size.var)
ADD_PARM_SIZE (all->stack_args_size, data->locate.size.var);
return true;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* A subroutine of assign_parms. Given that this parameter is allocated
stack space by the ABI, find it. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static void
assign_parm_find_stack_rtl (tree parm, struct assign_parm_data_one *data)
{
rtx offset_rtx, stack_parm;
unsigned int align, boundary;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If we're passing this arg using a reg, make its stack home the
aligned stack slot. */
if (data->entry_parm)
offset_rtx = ARGS_SIZE_RTX (data->locate.slot_offset);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
offset_rtx = ARGS_SIZE_RTX (data->locate.offset);
stack_parm = current_function_internal_arg_pointer;
if (offset_rtx != const0_rtx)
stack_parm = gen_rtx_PLUS (Pmode, stack_parm, offset_rtx);
stack_parm = gen_rtx_MEM (data->promoted_mode, stack_parm);
set_mem_attributes (stack_parm, parm, 1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
boundary = data->locate.boundary;
align = BITS_PER_UNIT;
/* If we're padding upward, we know that the alignment of the slot
is FUNCTION_ARG_BOUNDARY. If we're using slot_offset, we're
intentionally forcing upward padding. Otherwise we have to come
up with a guess at the alignment based on OFFSET_RTX. */
if (data->locate.where_pad != downward || data->entry_parm)
align = boundary;
else if (GET_CODE (offset_rtx) == CONST_INT)
{
align = INTVAL (offset_rtx) * BITS_PER_UNIT | boundary;
align = align & -align;
}
set_mem_align (stack_parm, align);
if (data->entry_parm)
set_reg_attrs_for_parm (data->entry_parm, stack_parm);
data->stack_parm = stack_parm;
}
/* A subroutine of assign_parms. Adjust DATA->ENTRY_RTL such that it's
always valid and contiguous. */
static void
assign_parm_adjust_entry_rtl (struct assign_parm_data_one *data)
{
rtx entry_parm = data->entry_parm;
rtx stack_parm = data->stack_parm;
/* If this parm was passed part in regs and part in memory, pretend it
arrived entirely in memory by pushing the register-part onto the stack.
In the special case of a DImode or DFmode that is split, we could put
it together in a pseudoreg directly, but for now that's not worth
bothering with. */
if (data->partial != 0)
{
/* Handle calls that pass values in multiple non-contiguous
locations. The Irix 6 ABI has examples of this. */
if (GET_CODE (entry_parm) == PARALLEL)
emit_group_store (validize_mem (stack_parm), entry_parm,
data->passed_type,
int_size_in_bytes (data->passed_type));
else
{
gcc_assert (data->partial % UNITS_PER_WORD == 0);
move_block_from_reg (REGNO (entry_parm), validize_mem (stack_parm),
data->partial / UNITS_PER_WORD);
}
entry_parm = stack_parm;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If we didn't decide this parm came in a register, by default it came
on the stack. */
else if (entry_parm == NULL)
entry_parm = stack_parm;
/* When an argument is passed in multiple locations, we can't make use
of this information, but we can save some copying if the whole argument
is passed in a single register. */
else if (GET_CODE (entry_parm) == PARALLEL
&& data->nominal_mode != BLKmode
&& data->passed_mode != BLKmode)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
size_t i, len = XVECLEN (entry_parm, 0);
for (i = 0; i < len; i++)
if (XEXP (XVECEXP (entry_parm, 0, i), 0) != NULL_RTX
&& REG_P (XEXP (XVECEXP (entry_parm, 0, i), 0))
&& (GET_MODE (XEXP (XVECEXP (entry_parm, 0, i), 0))
== data->passed_mode)
&& INTVAL (XEXP (XVECEXP (entry_parm, 0, i), 1)) == 0)
{
entry_parm = XEXP (XVECEXP (entry_parm, 0, i), 0);
break;
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
data->entry_parm = entry_parm;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* A subroutine of assign_parms. Adjust DATA->STACK_RTL such that it's
always valid and properly aligned. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static void
assign_parm_adjust_stack_rtl (struct assign_parm_data_one *data)
{
rtx stack_parm = data->stack_parm;
/* If we can't trust the parm stack slot to be aligned enough for its
ultimate type, don't use that slot after entry. We'll make another
stack slot, if we need one. */
if (stack_parm
&& ((STRICT_ALIGNMENT
&& GET_MODE_ALIGNMENT (data->nominal_mode) > MEM_ALIGN (stack_parm))
|| (data->nominal_type
&& TYPE_ALIGN (data->nominal_type) > MEM_ALIGN (stack_parm)
&& MEM_ALIGN (stack_parm) < PREFERRED_STACK_BOUNDARY)))
stack_parm = NULL;
/* If parm was passed in memory, and we need to convert it on entry,
don't store it back in that same slot. */
else if (data->entry_parm == stack_parm
&& data->nominal_mode != BLKmode
&& data->nominal_mode != data->passed_mode)
stack_parm = NULL;
/* If stack protection is in effect for this function, don't leave any
pointers in their passed stack slots. */
else if (cfun->stack_protect_guard
&& (flag_stack_protect == 2
|| data->passed_pointer
|| POINTER_TYPE_P (data->nominal_type)))
stack_parm = NULL;
data->stack_parm = stack_parm;
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* A subroutine of assign_parms. Return true if the current parameter
should be stored as a BLKmode in the current frame. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static bool
assign_parm_setup_block_p (struct assign_parm_data_one *data)
{
if (data->nominal_mode == BLKmode)
return true;
if (GET_CODE (data->entry_parm) == PARALLEL)
return true;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
#ifdef BLOCK_REG_PADDING
/* Only assign_parm_setup_block knows how to deal with register arguments
that are padded at the least significant end. */
if (REG_P (data->entry_parm)
&& GET_MODE_SIZE (data->promoted_mode) < UNITS_PER_WORD
&& (BLOCK_REG_PADDING (data->passed_mode, data->passed_type, 1)
== (BYTES_BIG_ENDIAN ? upward : downward)))
return true;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
return false;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* A subroutine of assign_parms. Arrange for the parameter to be
present and valid in DATA->STACK_RTL. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static void
assign_parm_setup_block (struct assign_parm_data_all *all,
tree parm, struct assign_parm_data_one *data)
{
rtx entry_parm = data->entry_parm;
rtx stack_parm = data->stack_parm;
HOST_WIDE_INT size;
HOST_WIDE_INT size_stored;
rtx orig_entry_parm = entry_parm;
if (GET_CODE (entry_parm) == PARALLEL)
entry_parm = emit_group_move_into_temps (entry_parm);
/* If we've a non-block object that's nevertheless passed in parts,
reconstitute it in register operations rather than on the stack. */
if (GET_CODE (entry_parm) == PARALLEL
&& data->nominal_mode != BLKmode)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx elt0 = XEXP (XVECEXP (orig_entry_parm, 0, 0), 0);
if ((XVECLEN (entry_parm, 0) > 1
|| hard_regno_nregs[REGNO (elt0)][GET_MODE (elt0)] > 1)
&& use_register_for_decl (parm))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx parmreg = gen_reg_rtx (data->nominal_mode);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
push_to_sequence (all->conversion_insns);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* For values returned in multiple registers, handle possible
incompatible calls to emit_group_store.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
For example, the following would be invalid, and would have to
be fixed by the conditional below:
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
emit_group_store ((reg:SF), (parallel:DF))
emit_group_store ((reg:SI), (parallel:DI))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
An example of this are doubles in e500 v2:
(parallel:DF (expr_list (reg:SI) (const_int 0))
(expr_list (reg:SI) (const_int 4))). */
if (data->nominal_mode != data->passed_mode)
{
rtx t = gen_reg_rtx (GET_MODE (entry_parm));
emit_group_store (t, entry_parm, NULL_TREE,
GET_MODE_SIZE (GET_MODE (entry_parm)));
convert_move (parmreg, t, 0);
}
else
emit_group_store (parmreg, entry_parm, data->nominal_type,
int_size_in_bytes (data->nominal_type));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
all->conversion_insns = get_insns ();
end_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
SET_DECL_RTL (parm, parmreg);
return;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
size = int_size_in_bytes (data->passed_type);
size_stored = CEIL_ROUND (size, UNITS_PER_WORD);
if (stack_parm == 0)
{
DECL_ALIGN (parm) = MAX (DECL_ALIGN (parm), BITS_PER_WORD);
stack_parm = assign_stack_local (BLKmode, size_stored,
DECL_ALIGN (parm));
if (GET_MODE_SIZE (GET_MODE (entry_parm)) == size)
PUT_MODE (stack_parm, GET_MODE (entry_parm));
set_mem_attributes (stack_parm, parm, 1);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If a BLKmode arrives in registers, copy it to a stack slot. Handle
calls that pass values in multiple non-contiguous locations. */
if (REG_P (entry_parm) || GET_CODE (entry_parm) == PARALLEL)
{
rtx mem;
/* Note that we will be storing an integral number of words.
So we have to be careful to ensure that we allocate an
integral number of words. We do this above when we call
assign_stack_local if space was not allocated in the argument
list. If it was, this will not work if PARM_BOUNDARY is not
a multiple of BITS_PER_WORD. It isn't clear how to fix this
if it becomes a problem. Exception is when BLKmode arrives
with arguments not conforming to word_mode. */
if (data->stack_parm == 0)
;
else if (GET_CODE (entry_parm) == PARALLEL)
;
else
gcc_assert (!size || !(PARM_BOUNDARY % BITS_PER_WORD));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
mem = validize_mem (stack_parm);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Handle values in multiple non-contiguous locations. */
if (GET_CODE (entry_parm) == PARALLEL)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
push_to_sequence (all->conversion_insns);
emit_group_store (mem, entry_parm, data->passed_type, size);
all->conversion_insns = get_insns ();
end_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
else if (size == 0)
;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If SIZE is that of a mode no bigger than a word, just use
that mode's store operation. */
else if (size <= UNITS_PER_WORD)
{
enum machine_mode mode
= mode_for_size (size * BITS_PER_UNIT, MODE_INT, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (mode != BLKmode
#ifdef BLOCK_REG_PADDING
&& (size == UNITS_PER_WORD
|| (BLOCK_REG_PADDING (mode, data->passed_type, 1)
!= (BYTES_BIG_ENDIAN ? upward : downward)))
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
#endif
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx reg = gen_rtx_REG (mode, REGNO (entry_parm));
emit_move_insn (change_address (mem, mode, 0), reg);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Blocks smaller than a word on a BYTES_BIG_ENDIAN
machine must be aligned to the left before storing
to memory. Note that the previous test doesn't
handle all cases (e.g. SIZE == 3). */
else if (size != UNITS_PER_WORD
#ifdef BLOCK_REG_PADDING
&& (BLOCK_REG_PADDING (mode, data->passed_type, 1)
== downward)
#else
&& BYTES_BIG_ENDIAN
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
#endif
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx tem, x;
int by = (UNITS_PER_WORD - size) * BITS_PER_UNIT;
rtx reg = gen_rtx_REG (word_mode, REGNO (entry_parm));
x = expand_shift (LSHIFT_EXPR, word_mode, reg,
build_int_cst (NULL_TREE, by),
NULL_RTX, 1);
tem = change_address (mem, word_mode, 0);
emit_move_insn (tem, x);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
else
move_block_from_reg (REGNO (entry_parm), mem,
size_stored / UNITS_PER_WORD);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
else
move_block_from_reg (REGNO (entry_parm), mem,
size_stored / UNITS_PER_WORD);
}
else if (data->stack_parm == 0)
{
push_to_sequence (all->conversion_insns);
emit_block_move (stack_parm, data->entry_parm, GEN_INT (size),
BLOCK_OP_NORMAL);
all->conversion_insns = get_insns ();
end_sequence ();
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
data->stack_parm = stack_parm;
SET_DECL_RTL (parm, stack_parm);
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* A subroutine of assign_parms. Allocate a pseudo to hold the current
parameter. Get it there. Perform all ABI specified conversions. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static void
assign_parm_setup_reg (struct assign_parm_data_all *all, tree parm,
struct assign_parm_data_one *data)
{
rtx parmreg;
enum machine_mode promoted_nominal_mode;
int unsignedp = TYPE_UNSIGNED (TREE_TYPE (parm));
bool did_conversion = false;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Store the parm in a pseudoregister during the function, but we may
need to do it in a wider mode. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* This is not really promoting for a call. However we need to be
consistent with assign_parm_find_data_types and expand_expr_real_1. */
promoted_nominal_mode
= promote_mode (data->nominal_type, data->nominal_mode, &unsignedp, 1);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
parmreg = gen_reg_rtx (promoted_nominal_mode);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (!DECL_ARTIFICIAL (parm))
mark_user_reg (parmreg);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If this was an item that we received a pointer to,
set DECL_RTL appropriately. */
if (data->passed_pointer)
{
rtx x = gen_rtx_MEM (TYPE_MODE (TREE_TYPE (data->passed_type)), parmreg);
set_mem_attributes (x, parm, 1);
SET_DECL_RTL (parm, x);
}
else
SET_DECL_RTL (parm, parmreg);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Copy the value into the register. */
if (data->nominal_mode != data->passed_mode
|| promoted_nominal_mode != data->promoted_mode)
{
int save_tree_used;
/* ENTRY_PARM has been converted to PROMOTED_MODE, its
mode, by the caller. We now have to convert it to
NOMINAL_MODE, if different. However, PARMREG may be in
a different mode than NOMINAL_MODE if it is being stored
promoted.
If ENTRY_PARM is a hard register, it might be in a register
not valid for operating in its mode (e.g., an odd-numbered
register for a DFmode). In that case, moves are the only
thing valid, so we can't do a convert from there. This
occurs when the calling sequence allow such misaligned
usages.
In addition, the conversion may involve a call, which could
clobber parameters which haven't been copied to pseudo
registers yet. Therefore, we must first copy the parm to
a pseudo reg here, and save the conversion until after all
parameters have been moved. */
rtx tempreg = gen_reg_rtx (GET_MODE (data->entry_parm));
emit_move_insn (tempreg, validize_mem (data->entry_parm));
push_to_sequence (all->conversion_insns);
tempreg = convert_to_mode (data->nominal_mode, tempreg, unsignedp);
if (GET_CODE (tempreg) == SUBREG
&& GET_MODE (tempreg) == data->nominal_mode
&& REG_P (SUBREG_REG (tempreg))
&& data->nominal_mode == data->passed_mode
&& GET_MODE (SUBREG_REG (tempreg)) == GET_MODE (data->entry_parm)
&& GET_MODE_SIZE (GET_MODE (tempreg))
< GET_MODE_SIZE (GET_MODE (data->entry_parm)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* The argument is already sign/zero extended, so note it
into the subreg. */
SUBREG_PROMOTED_VAR_P (tempreg) = 1;
SUBREG_PROMOTED_UNSIGNED_SET (tempreg, unsignedp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* TREE_USED gets set erroneously during expand_assignment. */
save_tree_used = TREE_USED (parm);
expand_assignment (parm, make_tree (data->nominal_type, tempreg));
TREE_USED (parm) = save_tree_used;
all->conversion_insns = get_insns ();
end_sequence ();
did_conversion = true;
}
else
emit_move_insn (parmreg, validize_mem (data->entry_parm));
/* If we were passed a pointer but the actual value can safely live
in a register, put it in one. */
if (data->passed_pointer
&& TYPE_MODE (TREE_TYPE (parm)) != BLKmode
/* If by-reference argument was promoted, demote it. */
&& (TYPE_MODE (TREE_TYPE (parm)) != GET_MODE (DECL_RTL (parm))
|| use_register_for_decl (parm)))
{
/* We can't use nominal_mode, because it will have been set to
Pmode above. We must use the actual mode of the parm. */
parmreg = gen_reg_rtx (TYPE_MODE (TREE_TYPE (parm)));
mark_user_reg (parmreg);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (GET_MODE (parmreg) != GET_MODE (DECL_RTL (parm)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx tempreg = gen_reg_rtx (GET_MODE (DECL_RTL (parm)));
int unsigned_p = TYPE_UNSIGNED (TREE_TYPE (parm));
push_to_sequence (all->conversion_insns);
emit_move_insn (tempreg, DECL_RTL (parm));
tempreg = convert_to_mode (GET_MODE (parmreg), tempreg, unsigned_p);
emit_move_insn (parmreg, tempreg);
all->conversion_insns = get_insns ();
end_sequence ();
did_conversion = true;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
else
emit_move_insn (parmreg, DECL_RTL (parm));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
SET_DECL_RTL (parm, parmreg);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* STACK_PARM is the pointer, not the parm, and PARMREG is
now the parm. */
data->stack_parm = NULL;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Mark the register as eliminable if we did no conversion and it was
copied from memory at a fixed offset, and the arg pointer was not
copied to a pseudo-reg. If the arg pointer is a pseudo reg or the
offset formed an invalid address, such memory-equivalences as we
make here would screw up life analysis for it. */
if (data->nominal_mode == data->passed_mode
&& !did_conversion
&& data->stack_parm != 0
&& MEM_P (data->stack_parm)
&& data->locate.offset.var == 0
&& reg_mentioned_p (virtual_incoming_args_rtx,
XEXP (data->stack_parm, 0)))
{
rtx linsn = get_last_insn ();
rtx sinsn, set;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Mark complex types separately. */
if (GET_CODE (parmreg) == CONCAT)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
enum machine_mode submode
= GET_MODE_INNER (GET_MODE (parmreg));
int regnor = REGNO (XEXP (parmreg, 0));
int regnoi = REGNO (XEXP (parmreg, 1));
rtx stackr = adjust_address_nv (data->stack_parm, submode, 0);
rtx stacki = adjust_address_nv (data->stack_parm, submode,
GET_MODE_SIZE (submode));
/* Scan backwards for the set of the real and
imaginary parts. */
for (sinsn = linsn; sinsn != 0;
sinsn = prev_nonnote_insn (sinsn))
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
set = single_set (sinsn);
if (set == 0)
continue;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (SET_DEST (set) == regno_reg_rtx [regnoi])
REG_NOTES (sinsn)
= gen_rtx_EXPR_LIST (REG_EQUIV, stacki,
REG_NOTES (sinsn));
else if (SET_DEST (set) == regno_reg_rtx [regnor])
REG_NOTES (sinsn)
= gen_rtx_EXPR_LIST (REG_EQUIV, stackr,
REG_NOTES (sinsn));
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
else if ((set = single_set (linsn)) != 0
&& SET_DEST (set) == parmreg)
REG_NOTES (linsn)
= gen_rtx_EXPR_LIST (REG_EQUIV,
data->stack_parm, REG_NOTES (linsn));
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* For pointer data type, suggest pointer register. */
if (POINTER_TYPE_P (TREE_TYPE (parm)))
mark_reg_pointer (parmreg,
TYPE_ALIGN (TREE_TYPE (TREE_TYPE (parm))));
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* A subroutine of assign_parms. Allocate stack space to hold the current
parameter. Get it there. Perform all ABI specified conversions. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static void
assign_parm_setup_stack (struct assign_parm_data_all *all, tree parm,
struct assign_parm_data_one *data)
{
/* Value must be stored in the stack slot STACK_PARM during function
execution. */
bool to_conversion = false;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (data->promoted_mode != data->nominal_mode)
{
/* Conversion is required. */
rtx tempreg = gen_reg_rtx (GET_MODE (data->entry_parm));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
emit_move_insn (tempreg, validize_mem (data->entry_parm));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
push_to_sequence (all->conversion_insns);
to_conversion = true;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
data->entry_parm = convert_to_mode (data->nominal_mode, tempreg,
TYPE_UNSIGNED (TREE_TYPE (parm)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (data->stack_parm)
/* ??? This may need a big-endian conversion on sparc64. */
data->stack_parm
= adjust_address (data->stack_parm, data->nominal_mode, 0);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (data->entry_parm != data->stack_parm)
{
rtx src, dest;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (data->stack_parm == 0)
{
data->stack_parm
= assign_stack_local (GET_MODE (data->entry_parm),
GET_MODE_SIZE (GET_MODE (data->entry_parm)),
TYPE_ALIGN (data->passed_type));
set_mem_attributes (data->stack_parm, parm, 1);
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
dest = validize_mem (data->stack_parm);
src = validize_mem (data->entry_parm);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (MEM_P (src))
{
/* Use a block move to handle potentially misaligned entry_parm. */
if (!to_conversion)
push_to_sequence (all->conversion_insns);
to_conversion = true;
emit_block_move (dest, src,
GEN_INT (int_size_in_bytes (data->passed_type)),
BLOCK_OP_NORMAL);
}
else
emit_move_insn (dest, src);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (to_conversion)
{
all->conversion_insns = get_insns ();
end_sequence ();
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
SET_DECL_RTL (parm, data->stack_parm);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* A subroutine of assign_parms. If the ABI splits complex arguments, then
undo the frobbing that we did in assign_parms_augmented_arg_list. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static void
assign_parms_unsplit_complex (struct assign_parm_data_all *all, tree fnargs)
{
tree parm;
tree orig_fnargs = all->orig_fnargs;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (parm = orig_fnargs; parm; parm = TREE_CHAIN (parm))
{
if (TREE_CODE (TREE_TYPE (parm)) == COMPLEX_TYPE
&& targetm.calls.split_complex_arg (TREE_TYPE (parm)))
{
rtx tmp, real, imag;
enum machine_mode inner = GET_MODE_INNER (DECL_MODE (parm));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
real = DECL_RTL (fnargs);
imag = DECL_RTL (TREE_CHAIN (fnargs));
if (inner != GET_MODE (real))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
real = gen_lowpart_SUBREG (inner, real);
imag = gen_lowpart_SUBREG (inner, imag);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (TREE_ADDRESSABLE (parm))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx rmem, imem;
HOST_WIDE_INT size = int_size_in_bytes (TREE_TYPE (parm));
/* split_complex_arg put the real and imag parts in
pseudos. Move them to memory. */
tmp = assign_stack_local (DECL_MODE (parm), size,
TYPE_ALIGN (TREE_TYPE (parm)));
set_mem_attributes (tmp, parm, 1);
rmem = adjust_address_nv (tmp, inner, 0);
imem = adjust_address_nv (tmp, inner, GET_MODE_SIZE (inner));
push_to_sequence (all->conversion_insns);
emit_move_insn (rmem, real);
emit_move_insn (imem, imag);
all->conversion_insns = get_insns ();
end_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
tmp = gen_rtx_CONCAT (DECL_MODE (parm), real, imag);
SET_DECL_RTL (parm, tmp);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
real = DECL_INCOMING_RTL (fnargs);
imag = DECL_INCOMING_RTL (TREE_CHAIN (fnargs));
if (inner != GET_MODE (real))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
real = gen_lowpart_SUBREG (inner, real);
imag = gen_lowpart_SUBREG (inner, imag);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
tmp = gen_rtx_CONCAT (DECL_MODE (parm), real, imag);
set_decl_incoming_rtl (parm, tmp);
fnargs = TREE_CHAIN (fnargs);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
SET_DECL_RTL (parm, DECL_RTL (fnargs));
set_decl_incoming_rtl (parm, DECL_INCOMING_RTL (fnargs));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Set MEM_EXPR to the original decl, i.e. to PARM,
instead of the copy of decl, i.e. FNARGS. */
if (DECL_INCOMING_RTL (parm) && MEM_P (DECL_INCOMING_RTL (parm)))
set_mem_expr (DECL_INCOMING_RTL (parm), parm);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
fnargs = TREE_CHAIN (fnargs);
}
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Assign RTL expressions to the function's parameters. This may involve
copying them into registers and using those registers as the DECL_RTL. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static void
assign_parms (tree fndecl)
{
struct assign_parm_data_all all;
tree fnargs, parm;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
current_function_internal_arg_pointer
= targetm.calls.internal_arg_pointer ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
assign_parms_initialize_all (&all);
fnargs = assign_parms_augmented_arg_list (&all);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (parm = fnargs; parm; parm = TREE_CHAIN (parm))
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
struct assign_parm_data_one data;
/* Extract the type of PARM; adjust it according to ABI. */
assign_parm_find_data_types (&all, parm, &data);
/* Early out for errors and void parameters. */
if (data.passed_mode == VOIDmode)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
SET_DECL_RTL (parm, const0_rtx);
DECL_INCOMING_RTL (parm) = DECL_RTL (parm);
continue;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (current_function_stdarg && !TREE_CHAIN (parm))
assign_parms_setup_varargs (&all, &data, false);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Find out where the parameter arrives in this function. */
assign_parm_find_entry_rtl (&all, &data);
/* Find out where stack space for this parameter might be. */
if (assign_parm_is_stack_parm (&all, &data))
{
assign_parm_find_stack_rtl (parm, &data);
assign_parm_adjust_entry_rtl (&data);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Record permanently how this parm was passed. */
set_decl_incoming_rtl (parm, data.entry_parm);
/* Update info on where next arg arrives in registers. */
FUNCTION_ARG_ADVANCE (all.args_so_far, data.promoted_mode,
data.passed_type, data.named_arg);
assign_parm_adjust_stack_rtl (&data);
if (assign_parm_setup_block_p (&data))
assign_parm_setup_block (&all, parm, &data);
else if (data.passed_pointer || use_register_for_decl (parm))
assign_parm_setup_reg (&all, parm, &data);
else
assign_parm_setup_stack (&all, parm, &data);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (targetm.calls.split_complex_arg && fnargs != all.orig_fnargs)
assign_parms_unsplit_complex (&all, fnargs);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Output all parameter conversion instructions (possibly including calls)
now that all parameters have been copied out of hard registers. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
emit_insn (all.conversion_insns);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* If we are receiving a struct value address as the first argument, set up
the RTL for the function result. As this might require code to convert
the transmitted address to Pmode, we do this here to ensure that possible
preliminary conversions of the address have been emitted already. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (all.function_result_decl)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
tree result = DECL_RESULT (current_function_decl);
rtx addr = DECL_RTL (all.function_result_decl);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
rtx x;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (DECL_BY_REFERENCE (result))
x = addr;
else
{
addr = convert_memory_address (Pmode, addr);
x = gen_rtx_MEM (DECL_MODE (result), addr);
set_mem_attributes (x, result, 1);
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
SET_DECL_RTL (result, x);
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* We have aligned all the args, so add space for the pretend args. */
current_function_pretend_args_size = all.pretend_args_size;
all.stack_args_size.constant += all.extra_pretend_bytes;
current_function_args_size = all.stack_args_size.constant;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Adjust function incoming argument size for alignment and
minimum length. */
#ifdef REG_PARM_STACK_SPACE
current_function_args_size = MAX (current_function_args_size,
REG_PARM_STACK_SPACE (fndecl));
#endif
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
current_function_args_size = CEIL_ROUND (current_function_args_size,
PARM_BOUNDARY / BITS_PER_UNIT);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef ARGS_GROW_DOWNWARD
current_function_arg_offset_rtx
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
= (all.stack_args_size.var == 0 ? GEN_INT (-all.stack_args_size.constant)
: expand_expr (size_diffop (all.stack_args_size.var,
size_int (-all.stack_args_size.constant)),
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
NULL_RTX, VOIDmode, 0));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#else
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
current_function_arg_offset_rtx = ARGS_SIZE_RTX (all.stack_args_size);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
/* See how many bytes, if any, of its args a function should try to pop
on return. */
current_function_pops_args = RETURN_POPS_ARGS (fndecl, TREE_TYPE (fndecl),
current_function_args_size);
/* For stdarg.h function, save info about
regs and stack space used by the named args. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
current_function_args_info = all.args_so_far;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Set the rtx used for the function return value. Put this in its
own variable so any optimizers that need this information don't have
to include tree.h. Do this here so it gets done when an inlined
function gets output. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
current_function_return_rtx
= (DECL_RTL_SET_P (DECL_RESULT (fndecl))
? DECL_RTL (DECL_RESULT (fndecl)) : NULL_RTX);
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
/* If scalar return value was computed in a pseudo-reg, or was a named
return value that got dumped to the stack, copy that to the hard
return register. */
if (DECL_RTL_SET_P (DECL_RESULT (fndecl)))
{
tree decl_result = DECL_RESULT (fndecl);
rtx decl_rtl = DECL_RTL (decl_result);
if (REG_P (decl_rtl)
? REGNO (decl_rtl) >= FIRST_PSEUDO_REGISTER
: DECL_REGISTER (decl_result))
{
rtx real_decl_rtl;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
real_decl_rtl = targetm.calls.function_value (TREE_TYPE (decl_result),
fndecl, true);
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
REG_FUNCTION_VALUE_P (real_decl_rtl) = 1;
/* The delay slot scheduler assumes that current_function_return_rtx
holds the hard register containing the return value, not a
temporary pseudo. */
current_function_return_rtx = real_decl_rtl;
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* A subroutine of gimplify_parameters, invoked via walk_tree.
For all seen types, gimplify their sizes. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
static tree
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gimplify_parm_type (tree *tp, int *walk_subtrees, void *data)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
tree t = *tp;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
*walk_subtrees = 0;
if (TYPE_P (t))
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (POINTER_TYPE_P (t))
*walk_subtrees = 1;
else if (TYPE_SIZE (t) && !TREE_CONSTANT (TYPE_SIZE (t))
&& !TYPE_SIZES_GIMPLIFIED (t))
{
gimplify_type_sizes (t, (tree *) data);
*walk_subtrees = 1;
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
return NULL;
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Gimplify the parameter list for current_function_decl. This involves
evaluating SAVE_EXPRs of variable sized parameters and generating code
to implement callee-copies reference parameters. Returns a list of
statements to add to the beginning of the function, or NULL if nothing
to do. */
tree
gimplify_parameters (void)
{
struct assign_parm_data_all all;
tree fnargs, parm, stmts = NULL;
assign_parms_initialize_all (&all);
fnargs = assign_parms_augmented_arg_list (&all);
for (parm = fnargs; parm; parm = TREE_CHAIN (parm))
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
struct assign_parm_data_one data;
/* Extract the type of PARM; adjust it according to ABI. */
assign_parm_find_data_types (&all, parm, &data);
/* Early out for errors and void parameters. */
if (data.passed_mode == VOIDmode || DECL_SIZE (parm) == NULL)
continue;
/* Update info on where next arg arrives in registers. */
FUNCTION_ARG_ADVANCE (all.args_so_far, data.promoted_mode,
data.passed_type, data.named_arg);
/* ??? Once upon a time variable_size stuffed parameter list
SAVE_EXPRs (amongst others) onto a pending sizes list. This
turned out to be less than manageable in the gimple world.
Now we have to hunt them down ourselves. */
walk_tree_without_duplicates (&data.passed_type,
gimplify_parm_type, &stmts);
if (!TREE_CONSTANT (DECL_SIZE (parm)))
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gimplify_one_sizepos (&DECL_SIZE (parm), &stmts);
gimplify_one_sizepos (&DECL_SIZE_UNIT (parm), &stmts);
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (data.passed_pointer)
{
tree type = TREE_TYPE (data.passed_type);
if (reference_callee_copied (&all.args_so_far, TYPE_MODE (type),
type, data.named_arg))
{
tree local, t;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* For constant sized objects, this is trivial; for
variable-sized objects, we have to play games. */
if (TREE_CONSTANT (DECL_SIZE (parm)))
{
local = create_tmp_var (type, get_name (parm));
DECL_IGNORED_P (local) = 0;
}
else
{
tree ptr_type, addr, args;
ptr_type = build_pointer_type (type);
addr = create_tmp_var (ptr_type, get_name (parm));
DECL_IGNORED_P (addr) = 0;
local = build_fold_indirect_ref (addr);
args = tree_cons (NULL, DECL_SIZE_UNIT (parm), NULL);
t = built_in_decls[BUILT_IN_ALLOCA];
t = build_function_call_expr (t, args);
t = fold_convert (ptr_type, t);
t = build2 (MODIFY_EXPR, void_type_node, addr, t);
gimplify_and_add (t, &stmts);
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
t = build2 (MODIFY_EXPR, void_type_node, local, parm);
gimplify_and_add (t, &stmts);
SET_DECL_VALUE_EXPR (parm, local);
DECL_HAS_VALUE_EXPR_P (parm) = 1;
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
return stmts;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Indicate whether REGNO is an incoming argument to the current function
that was promoted to a wider mode. If so, return the RTX for the
register (to get its mode). PMODE and PUNSIGNEDP are set to the mode
that REGNO is promoted from and whether the promotion was signed or
unsigned. */
rtx
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
promoted_input_arg (unsigned int regno, enum machine_mode *pmode, int *punsignedp)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
tree arg;
for (arg = DECL_ARGUMENTS (current_function_decl); arg;
arg = TREE_CHAIN (arg))
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (REG_P (DECL_INCOMING_RTL (arg))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& REGNO (DECL_INCOMING_RTL (arg)) == regno
&& TYPE_MODE (DECL_ARG_TYPE (arg)) == TYPE_MODE (TREE_TYPE (arg)))
{
enum machine_mode mode = TYPE_MODE (TREE_TYPE (arg));
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
int unsignedp = TYPE_UNSIGNED (TREE_TYPE (arg));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
mode = promote_mode (TREE_TYPE (arg), mode, &unsignedp, 1);
if (mode == GET_MODE (DECL_INCOMING_RTL (arg))
&& mode != DECL_MODE (arg))
{
*pmode = DECL_MODE (arg);
*punsignedp = unsignedp;
return DECL_INCOMING_RTL (arg);
}
}
return 0;
}
/* Compute the size and offset from the start of the stacked arguments for a
parm passed in mode PASSED_MODE and with type TYPE.
INITIAL_OFFSET_PTR points to the current offset into the stacked
arguments.
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
The starting offset and size for this parm are returned in
LOCATE->OFFSET and LOCATE->SIZE, respectively. When IN_REGS is
nonzero, the offset is that of stack slot, which is returned in
LOCATE->SLOT_OFFSET. LOCATE->ALIGNMENT_PAD is the amount of
padding required from the initial offset ptr to the stack slot.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
IN_REGS is nonzero if the argument will be passed in registers. It will
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
never be set if REG_PARM_STACK_SPACE is not defined.
FNDECL is the function in which the argument was defined.
There are two types of rounding that are done. The first, controlled by
FUNCTION_ARG_BOUNDARY, forces the offset from the start of the argument
list to be aligned to the specific boundary (in bits). This rounding
affects the initial and starting offsets, but not the argument size.
The second, controlled by FUNCTION_ARG_PADDING and PARM_BOUNDARY,
optionally rounds the size of the parm to PARM_BOUNDARY. The
initial offset is not affected by this rounding, while the size always
is and the starting offset may be. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* LOCATE->OFFSET will be negative for ARGS_GROW_DOWNWARD case;
INITIAL_OFFSET_PTR is positive because locate_and_pad_parm's
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
callers pass in the total size of args so far as
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
INITIAL_OFFSET_PTR. LOCATE->SIZE is always positive. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
locate_and_pad_parm (enum machine_mode passed_mode, tree type, int in_regs,
int partial, tree fndecl ATTRIBUTE_UNUSED,
struct args_size *initial_offset_ptr,
struct locate_and_pad_arg_data *locate)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
tree sizetree;
enum direction where_pad;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
unsigned int boundary;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
int reg_parm_stack_space = 0;
int part_size_in_regs;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef REG_PARM_STACK_SPACE
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
reg_parm_stack_space = REG_PARM_STACK_SPACE (fndecl);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If we have found a stack parm before we reach the end of the
area reserved for registers, skip that area. */
if (! in_regs)
{
if (reg_parm_stack_space > 0)
{
if (initial_offset_ptr->var)
{
initial_offset_ptr->var
= size_binop (MAX_EXPR, ARGS_SIZE_TREE (*initial_offset_ptr),
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
ssize_int (reg_parm_stack_space));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
initial_offset_ptr->constant = 0;
}
else if (initial_offset_ptr->constant < reg_parm_stack_space)
initial_offset_ptr->constant = reg_parm_stack_space;
}
}
#endif /* REG_PARM_STACK_SPACE */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
part_size_in_regs = (reg_parm_stack_space == 0 ? partial : 0);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
sizetree
= type ? size_in_bytes (type) : size_int (GET_MODE_SIZE (passed_mode));
where_pad = FUNCTION_ARG_PADDING (passed_mode, type);
boundary = FUNCTION_ARG_BOUNDARY (passed_mode, type);
locate->where_pad = where_pad;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
locate->boundary = boundary;
/* Remember if the outgoing parameter requires extra alignment on the
calling function side. */
if (boundary > PREFERRED_STACK_BOUNDARY)
boundary = PREFERRED_STACK_BOUNDARY;
if (cfun->stack_alignment_needed < boundary)
cfun->stack_alignment_needed = boundary;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef ARGS_GROW_DOWNWARD
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
locate->slot_offset.constant = -initial_offset_ptr->constant;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (initial_offset_ptr->var)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
locate->slot_offset.var = size_binop (MINUS_EXPR, ssize_int (0),
initial_offset_ptr->var);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
tree s2 = sizetree;
if (where_pad != none
&& (!host_integerp (sizetree, 1)
|| (tree_low_cst (sizetree, 1) * BITS_PER_UNIT) % PARM_BOUNDARY))
s2 = round_up (s2, PARM_BOUNDARY / BITS_PER_UNIT);
SUB_PARM_SIZE (locate->slot_offset, s2);
}
locate->slot_offset.constant += part_size_in_regs;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (!in_regs
#ifdef REG_PARM_STACK_SPACE
|| REG_PARM_STACK_SPACE (fndecl) > 0
#endif
)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
pad_to_arg_alignment (&locate->slot_offset, boundary,
&locate->alignment_pad);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
locate->size.constant = (-initial_offset_ptr->constant
- locate->slot_offset.constant);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (initial_offset_ptr->var)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
locate->size.var = size_binop (MINUS_EXPR,
size_binop (MINUS_EXPR,
ssize_int (0),
initial_offset_ptr->var),
locate->slot_offset.var);
/* Pad_below needs the pre-rounded size to know how much to pad
below. */
locate->offset = locate->slot_offset;
if (where_pad == downward)
pad_below (&locate->offset, passed_mode, sizetree);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#else /* !ARGS_GROW_DOWNWARD */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (!in_regs
#ifdef REG_PARM_STACK_SPACE
|| REG_PARM_STACK_SPACE (fndecl) > 0
#endif
)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
pad_to_arg_alignment (initial_offset_ptr, boundary,
&locate->alignment_pad);
locate->slot_offset = *initial_offset_ptr;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef PUSH_ROUNDING
if (passed_mode != BLKmode)
sizetree = size_int (PUSH_ROUNDING (TREE_INT_CST_LOW (sizetree)));
#endif
/* Pad_below needs the pre-rounded size to know how much to pad below
so this must be done before rounding up. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
locate->offset = locate->slot_offset;
if (where_pad == downward)
pad_below (&locate->offset, passed_mode, sizetree);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (where_pad != none
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
&& (!host_integerp (sizetree, 1)
|| (tree_low_cst (sizetree, 1) * BITS_PER_UNIT) % PARM_BOUNDARY))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
sizetree = round_up (sizetree, PARM_BOUNDARY / BITS_PER_UNIT);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
ADD_PARM_SIZE (locate->size, sizetree);
locate->size.constant -= part_size_in_regs;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif /* ARGS_GROW_DOWNWARD */
}
/* Round the stack offset in *OFFSET_PTR up to a multiple of BOUNDARY.
BOUNDARY is measured in bits, but must be a multiple of a storage unit. */
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
pad_to_arg_alignment (struct args_size *offset_ptr, int boundary,
struct args_size *alignment_pad)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
tree save_var = NULL_TREE;
HOST_WIDE_INT save_constant = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
int boundary_in_bytes = boundary / BITS_PER_UNIT;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
HOST_WIDE_INT sp_offset = STACK_POINTER_OFFSET;
#ifdef SPARC_STACK_BOUNDARY_HACK
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* ??? The SPARC port may claim a STACK_BOUNDARY higher than
the real alignment of %sp. However, when it does this, the
alignment of %sp+STACK_POINTER_OFFSET is STACK_BOUNDARY. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
if (SPARC_STACK_BOUNDARY_HACK)
sp_offset = 0;
#endif
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (boundary > PARM_BOUNDARY && boundary > STACK_BOUNDARY)
{
save_var = offset_ptr->var;
save_constant = offset_ptr->constant;
}
alignment_pad->var = NULL_TREE;
alignment_pad->constant = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (boundary > BITS_PER_UNIT)
{
if (offset_ptr->var)
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
tree sp_offset_tree = ssize_int (sp_offset);
tree offset = size_binop (PLUS_EXPR,
ARGS_SIZE_TREE (*offset_ptr),
sp_offset_tree);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef ARGS_GROW_DOWNWARD
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
tree rounded = round_down (offset, boundary / BITS_PER_UNIT);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#else
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
tree rounded = round_up (offset, boundary / BITS_PER_UNIT);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
offset_ptr->var = size_binop (MINUS_EXPR, rounded, sp_offset_tree);
/* ARGS_SIZE_TREE includes constant term. */
offset_ptr->constant = 0;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (boundary > PARM_BOUNDARY && boundary > STACK_BOUNDARY)
alignment_pad->var = size_binop (MINUS_EXPR, offset_ptr->var,
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
save_var);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
offset_ptr->constant = -sp_offset +
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef ARGS_GROW_DOWNWARD
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
FLOOR_ROUND (offset_ptr->constant + sp_offset, boundary_in_bytes);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#else
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
CEIL_ROUND (offset_ptr->constant + sp_offset, boundary_in_bytes);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (boundary > PARM_BOUNDARY && boundary > STACK_BOUNDARY)
alignment_pad->constant = offset_ptr->constant - save_constant;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
pad_below (struct args_size *offset_ptr, enum machine_mode passed_mode, tree sizetree)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
if (passed_mode != BLKmode)
{
if (GET_MODE_BITSIZE (passed_mode) % PARM_BOUNDARY)
offset_ptr->constant
+= (((GET_MODE_BITSIZE (passed_mode) + PARM_BOUNDARY - 1)
/ PARM_BOUNDARY * PARM_BOUNDARY / BITS_PER_UNIT)
- GET_MODE_SIZE (passed_mode));
}
else
{
if (TREE_CODE (sizetree) != INTEGER_CST
|| (TREE_INT_CST_LOW (sizetree) * BITS_PER_UNIT) % PARM_BOUNDARY)
{
/* Round the size up to multiple of PARM_BOUNDARY bits. */
tree s2 = round_up (sizetree, PARM_BOUNDARY / BITS_PER_UNIT);
/* Add it in. */
ADD_PARM_SIZE (*offset_ptr, s2);
SUB_PARM_SIZE (*offset_ptr, sizetree);
}
}
}
/* Walk the tree of blocks describing the binding levels within a function
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
and warn about variables the might be killed by setjmp or vfork.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
This is done after calling flow_analysis and before global_alloc
clobbers the pseudo-regs to hard regs. */
void
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
setjmp_vars_warning (tree block)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
tree decl, sub;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
for (decl = BLOCK_VARS (block); decl; decl = TREE_CHAIN (decl))
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (TREE_CODE (decl) == VAR_DECL
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
&& DECL_RTL_SET_P (decl)
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
&& REG_P (DECL_RTL (decl))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& regno_clobbered_at_setjmp (REGNO (DECL_RTL (decl))))
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
warning (0, "variable %q+D might be clobbered by %<longjmp%>"
" or %<vfork%>",
decl);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
for (sub = BLOCK_SUBBLOCKS (block); sub; sub = TREE_CHAIN (sub))
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
setjmp_vars_warning (sub);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Do the appropriate part of setjmp_vars_warning
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
but for arguments instead of local variables. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
setjmp_args_warning (void)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
tree decl;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
for (decl = DECL_ARGUMENTS (current_function_decl);
decl; decl = TREE_CHAIN (decl))
if (DECL_RTL (decl) != 0
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
&& REG_P (DECL_RTL (decl))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& regno_clobbered_at_setjmp (REGNO (DECL_RTL (decl))))
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
warning (0, "argument %q+D might be clobbered by %<longjmp%> or %<vfork%>",
decl);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Identify BLOCKs referenced by more than one NOTE_INSN_BLOCK_{BEG,END},
and create duplicate blocks. */
/* ??? Need an option to either create block fragments or to create
abstract origin duplicates of a source block. It really depends
on what optimization has been performed. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
reorder_blocks (void)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
tree block = DECL_INITIAL (current_function_decl);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
VEC(tree,heap) *block_stack;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (block == NULL_TREE)
return;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
block_stack = VEC_alloc (tree, heap, 10);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Reset the TREE_ASM_WRITTEN bit for all blocks. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
clear_block_marks (block);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Prune the old trees away, so that they don't get in the way. */
BLOCK_SUBBLOCKS (block) = NULL_TREE;
BLOCK_CHAIN (block) = NULL_TREE;
/* Recreate the block tree from the note nesting. */
reorder_blocks_1 (get_insns (), block, &block_stack);
BLOCK_SUBBLOCKS (block) = blocks_nreverse (BLOCK_SUBBLOCKS (block));
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
VEC_free (tree, heap, block_stack);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Helper function for reorder_blocks. Reset TREE_ASM_WRITTEN. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
void
clear_block_marks (tree block)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
while (block)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
TREE_ASM_WRITTEN (block) = 0;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
clear_block_marks (BLOCK_SUBBLOCKS (block));
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
block = BLOCK_CHAIN (block);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
static void
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
reorder_blocks_1 (rtx insns, tree current_block, VEC(tree,heap) **p_block_stack)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
rtx insn;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
for (insn = insns; insn; insn = NEXT_INSN (insn))
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (NOTE_P (insn))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
if (NOTE_LINE_NUMBER (insn) == NOTE_INSN_BLOCK_BEG)
{
tree block = NOTE_BLOCK (insn);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
tree origin;
origin = (BLOCK_FRAGMENT_ORIGIN (block)
? BLOCK_FRAGMENT_ORIGIN (block)
: block);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If we have seen this block before, that means it now
spans multiple address regions. Create a new fragment. */
if (TREE_ASM_WRITTEN (block))
{
tree new_block = copy_node (block);
BLOCK_FRAGMENT_ORIGIN (new_block) = origin;
BLOCK_FRAGMENT_CHAIN (new_block)
= BLOCK_FRAGMENT_CHAIN (origin);
BLOCK_FRAGMENT_CHAIN (origin) = new_block;
NOTE_BLOCK (insn) = new_block;
block = new_block;
}
BLOCK_SUBBLOCKS (block) = 0;
TREE_ASM_WRITTEN (block) = 1;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* When there's only one block for the entire function,
current_block == block and we mustn't do this, it
will cause infinite recursion. */
if (block != current_block)
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (block != origin)
gcc_assert (BLOCK_SUPERCONTEXT (origin) == current_block);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
BLOCK_SUPERCONTEXT (block) = current_block;
BLOCK_CHAIN (block) = BLOCK_SUBBLOCKS (current_block);
BLOCK_SUBBLOCKS (current_block) = block;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
current_block = origin;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
VEC_safe_push (tree, heap, *p_block_stack, block);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
else if (NOTE_LINE_NUMBER (insn) == NOTE_INSN_BLOCK_END)
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
NOTE_BLOCK (insn) = VEC_pop (tree, *p_block_stack);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
BLOCK_SUBBLOCKS (current_block)
= blocks_nreverse (BLOCK_SUBBLOCKS (current_block));
current_block = BLOCK_SUPERCONTEXT (current_block);
}
}
}
}
/* Reverse the order of elements in the chain T of blocks,
and return the new head of the chain (old last element). */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
blocks_nreverse (tree t)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
tree prev = 0, decl, next;
for (decl = t; decl; decl = next)
{
next = BLOCK_CHAIN (decl);
BLOCK_CHAIN (decl) = prev;
prev = decl;
}
return prev;
}
/* Count the subblocks of the list starting with BLOCK. If VECTOR is
non-NULL, list them all into VECTOR, in a depth-first preorder
traversal of the block tree. Also clear TREE_ASM_WRITTEN in all
blocks. */
static int
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
all_blocks (tree block, tree *vector)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
int n_blocks = 0;
while (block)
{
TREE_ASM_WRITTEN (block) = 0;
/* Record this block. */
if (vector)
vector[n_blocks] = block;
++n_blocks;
/* Record the subblocks, and their subblocks... */
n_blocks += all_blocks (BLOCK_SUBBLOCKS (block),
vector ? vector + n_blocks : 0);
block = BLOCK_CHAIN (block);
}
return n_blocks;
}
/* Return a vector containing all the blocks rooted at BLOCK. The
number of elements in the vector is stored in N_BLOCKS_P. The
vector is dynamically allocated; it is the caller's responsibility
to call `free' on the pointer returned. */
static tree *
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
get_block_vector (tree block, int *n_blocks_p)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
tree *block_vector;
*n_blocks_p = all_blocks (block, NULL);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
block_vector = XNEWVEC (tree, *n_blocks_p);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
all_blocks (block, block_vector);
return block_vector;
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
static GTY(()) int next_block_index = 2;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Set BLOCK_NUMBER for all the blocks in FN. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
number_blocks (tree fn)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
int i;
int n_blocks;
tree *block_vector;
/* For SDB and XCOFF debugging output, we start numbering the blocks
from 1 within each function, rather than keeping a running
count. */
#if defined (SDB_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)
if (write_symbols == SDB_DEBUG || write_symbols == XCOFF_DEBUG)
next_block_index = 1;
#endif
block_vector = get_block_vector (DECL_INITIAL (fn), &n_blocks);
/* The top-level BLOCK isn't numbered at all. */
for (i = 1; i < n_blocks; ++i)
/* We number the blocks from two. */
BLOCK_NUMBER (block_vector[i]) = next_block_index++;
free (block_vector);
return;
}
/* If VAR is present in a subblock of BLOCK, return the subblock. */
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
debug_find_var_in_block_tree (tree var, tree block)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
tree t;
for (t = BLOCK_VARS (block); t; t = TREE_CHAIN (t))
if (t == var)
return block;
for (t = BLOCK_SUBBLOCKS (block); t; t = TREE_CHAIN (t))
{
tree ret = debug_find_var_in_block_tree (var, t);
if (ret)
return ret;
}
return NULL_TREE;
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* Allocate a function structure for FNDECL and set its contents
to the defaults. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
void
allocate_struct_function (tree fndecl)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
tree result;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
tree fntype = fndecl ? TREE_TYPE (fndecl) : NULL_TREE;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
cfun = ggc_alloc_cleared (sizeof (struct function));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
cfun->stack_alignment_needed = STACK_BOUNDARY;
cfun->preferred_stack_boundary = STACK_BOUNDARY;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
current_function_funcdef_no = funcdef_no++;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
cfun->function_frequency = FUNCTION_FREQUENCY_NORMAL;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
init_eh_for_function ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
lang_hooks.function.init (cfun);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
if (init_machine_status)
cfun->machine = (*init_machine_status) ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
if (fndecl == NULL)
return;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
DECL_STRUCT_FUNCTION (fndecl) = cfun;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
cfun->decl = fndecl;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin radar 5732232 - blocks */
/* We cannot support blocks which return aggregates because at this
point we do not have info on the return type. */
if (!cur_block)
{
result = DECL_RESULT (fndecl);
if (aggregate_value_p (result, fndecl))
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
#ifdef PCC_STATIC_STRUCT_RETURN
current_function_returns_pcc_struct = 1;
#endif
current_function_returns_struct = 1;
}
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* This code is not used anywhere ! */
current_function_returns_pointer = POINTER_TYPE_P (TREE_TYPE (result));
}
/* APPLE LOCAL end radar 5732232 - blocks */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
current_function_stdarg
= (fntype
&& TYPE_ARG_TYPES (fntype) != 0
&& (TREE_VALUE (tree_last (TYPE_ARG_TYPES (fntype)))
!= void_type_node));
/* Assume all registers in stdarg functions need to be saved. */
cfun->va_list_gpr_size = VA_LIST_MAX_GPR_SIZE;
cfun->va_list_fpr_size = VA_LIST_MAX_FPR_SIZE;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* Reset cfun, and other non-struct-function variables to defaults as
appropriate for emitting rtl at the start of a function. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
static void
prepare_function_start (tree fndecl)
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (fndecl && DECL_STRUCT_FUNCTION (fndecl))
cfun = DECL_STRUCT_FUNCTION (fndecl);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
else
allocate_struct_function (fndecl);
init_emit ();
init_varasm_status (cfun);
init_expr ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
cse_not_expected = ! optimize;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* Caller save not needed yet. */
caller_save_needed = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* We haven't done register allocation yet. */
reg_renumber = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Indicate that we have not instantiated virtual registers yet. */
virtuals_instantiated = 0;
/* Indicate that we want CONCATs now. */
generating_concat_p = 1;
/* Indicate we have no need of a frame pointer yet. */
frame_pointer_needed = 0;
}
/* Initialize the rtl expansion mechanism so that we can do simple things
like generate sequences. This is used to provide a context during global
initialization of some passes. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
init_dummy_function_start (void)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
prepare_function_start (NULL);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
/* Generate RTL for the start of the function SUBR (a FUNCTION_DECL tree node)
and initialize static variables for generating RTL for the statements
of the function. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
init_function_start (tree subr)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
prepare_function_start (subr);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* Prevent ever trying to delete the first instruction of a
function. Also tell final how to output a linenum before the
function prologue. Note linenums could be missing, e.g. when
compiling a Java .class file. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (! DECL_IS_BUILTIN (subr))
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_line_note (DECL_SOURCE_LOCATION (subr));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Make sure first insn is a note even if we don't want linenums.
This makes sure the first insn will never be deleted.
Also, final expects a note to appear there. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_note (NOTE_INSN_DELETED);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Warn if this value is an aggregate type,
regardless of which calling convention we are using for it. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (AGGREGATE_TYPE_P (TREE_TYPE (DECL_RESULT (subr))))
warning (OPT_Waggregate_return, "function returns an aggregate");
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Make sure all values used by the optimization passes have sane
defaults. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
unsigned int
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
init_function_for_compilation (void)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
reg_renumber = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* No prologue/epilogue insns yet. Make sure that these vectors are
empty. */
gcc_assert (VEC_length (int, prologue) == 0);
gcc_assert (VEC_length (int, epilogue) == 0);
gcc_assert (VEC_length (int, sibcall_epilogue) == 0);
return 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
struct tree_opt_pass pass_init_function =
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
NULL, /* name */
NULL, /* gate */
init_function_for_compilation, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
0, /* tv_id */
0, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
0, /* todo_flags_finish */
0 /* letter */
};
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
void
expand_main_function (void)
{
#if (defined(INVOKE__main) \
|| (!defined(HAS_INIT_SECTION) \
&& !defined(INIT_SECTION_ASM_OP) \
&& !defined(INIT_ARRAY_SECTION_ASM_OP)))
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_library_call (init_one_libfunc (NAME__MAIN), LCT_NORMAL, VOIDmode, 0);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Expand code to initialize the stack_protect_guard. This is invoked at
the beginning of a function to be protected. */
#ifndef HAVE_stack_protect_set
# define HAVE_stack_protect_set 0
# define gen_stack_protect_set(x,y) (gcc_unreachable (), NULL_RTX)
#endif
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
void
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
stack_protect_prologue (void)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
tree guard_decl = targetm.stack_protect_guard ();
rtx x, y;
/* Avoid expand_expr here, because we don't want guard_decl pulled
into registers unless absolutely necessary. And we know that
cfun->stack_protect_guard is a local stack slot, so this skips
all the fluff. */
x = validize_mem (DECL_RTL (cfun->stack_protect_guard));
y = validize_mem (DECL_RTL (guard_decl));
/* Allow the target to copy from Y to X without leaking Y into a
register. */
if (HAVE_stack_protect_set)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx insn = gen_stack_protect_set (x, y);
if (insn)
{
emit_insn (insn);
return;
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Otherwise do a straight move. */
emit_move_insn (x, y);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Expand code to verify the stack_protect_guard. This is invoked at
the end of a function to be protected. */
#ifndef HAVE_stack_protect_test
# define HAVE_stack_protect_test 0
# define gen_stack_protect_test(x, y, z) (gcc_unreachable (), NULL_RTX)
#endif
void
stack_protect_epilogue (void)
{
tree guard_decl = targetm.stack_protect_guard ();
rtx label = gen_label_rtx ();
rtx x, y, tmp;
/* Avoid expand_expr here, because we don't want guard_decl pulled
into registers unless absolutely necessary. And we know that
cfun->stack_protect_guard is a local stack slot, so this skips
all the fluff. */
x = validize_mem (DECL_RTL (cfun->stack_protect_guard));
y = validize_mem (DECL_RTL (guard_decl));
/* Allow the target to compare Y with X without leaking either into
a register. */
Fix clang warnings. Approved by: philip (mentor)
2011-05-22 22:17:06 +00:00
if (HAVE_stack_protect_test != 0)
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
{
tmp = gen_stack_protect_test (x, y, label);
if (tmp)
{
emit_insn (tmp);
Fix clang warnings. Approved by: philip (mentor)
2011-05-22 22:17:06 +00:00
goto done;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
}
}
Fix clang warnings. Approved by: philip (mentor)
2011-05-22 22:17:06 +00:00
emit_cmp_and_jump_insns (x, y, EQ, NULL_RTX, ptr_mode, 1, label);
done:
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* The noreturn predictor has been moved to the tree level. The rtl-level
predictors estimate this branch about 20%, which isn't enough to get
things moved out of line. Since this is the only extant case of adding
a noreturn function at the rtl level, it doesn't seem worth doing ought
except adding the prediction by hand. */
tmp = get_last_insn ();
if (JUMP_P (tmp))
predict_insn_def (tmp, PRED_NORETURN, TAKEN);
expand_expr_stmt (targetm.stack_protect_fail ());
emit_label (label);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Start the RTL for a new function, and set variables used for
emitting RTL.
SUBR is the FUNCTION_DECL node.
PARMS_HAVE_CLEANUPS is nonzero if there are cleanups associated with
the function's parameters, which must be run at any return statement. */
void
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
expand_function_start (tree subr)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
/* Make sure volatile mem refs aren't considered
valid operands of arithmetic insns. */
init_recog_no_volatile ();
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
current_function_profile
= (profile_flag
&& ! DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (subr));
current_function_limit_stack
= (stack_limit_rtx != NULL_RTX && ! DECL_NO_LIMIT_STACK (subr));
/* Make the label for return statements to jump to. Do not special
case machines with special return instructions -- they will be
handled later during jump, ifcvt, or epilogue creation. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return_label = gen_label_rtx ();
/* Initialize rtx used to return the value. */
/* Do this before assign_parms so that we copy the struct value address
before any library calls that assign parms might generate. */
/* Decide whether to return the value in memory or in a register. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
if (aggregate_value_p (DECL_RESULT (subr), subr))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
/* Returning something that won't go in a register. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
rtx value_address = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef PCC_STATIC_STRUCT_RETURN
if (current_function_returns_pcc_struct)
{
int size = int_size_in_bytes (TREE_TYPE (DECL_RESULT (subr)));
value_address = assemble_static_space (size);
}
else
#endif
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx sv = targetm.calls.struct_value_rtx (TREE_TYPE (subr), 2);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Expect to be passed the address of a place to store the value.
If it is passed as an argument, assign_parms will take care of
it. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
if (sv)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
value_address = gen_reg_rtx (Pmode);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_move_insn (value_address, sv);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
if (value_address)
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx x = value_address;
if (!DECL_BY_REFERENCE (DECL_RESULT (subr)))
{
x = gen_rtx_MEM (DECL_MODE (DECL_RESULT (subr)), x);
set_mem_attributes (x, DECL_RESULT (subr), 1);
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
SET_DECL_RTL (DECL_RESULT (subr), x);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
else if (DECL_MODE (DECL_RESULT (subr)) == VOIDmode)
/* If return mode is void, this decl rtl should not be used. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
SET_DECL_RTL (DECL_RESULT (subr), NULL_RTX);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Compute the return values into a pseudo reg, which we will copy
into the true return register after the cleanups are done. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
tree return_type = TREE_TYPE (DECL_RESULT (subr));
if (TYPE_MODE (return_type) != BLKmode
&& targetm.calls.return_in_msb (return_type))
/* expand_function_end will insert the appropriate padding in
this case. Use the return value's natural (unpadded) mode
within the function proper. */
SET_DECL_RTL (DECL_RESULT (subr),
gen_reg_rtx (TYPE_MODE (return_type)));
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
else
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
{
/* In order to figure out what mode to use for the pseudo, we
figure out what the mode of the eventual return register will
actually be, and use that. */
rtx hard_reg = hard_function_value (return_type, subr, 0, 1);
/* Structures that are returned in registers are not
aggregate_value_p, so we may see a PARALLEL or a REG. */
if (REG_P (hard_reg))
SET_DECL_RTL (DECL_RESULT (subr),
gen_reg_rtx (GET_MODE (hard_reg)));
else
{
gcc_assert (GET_CODE (hard_reg) == PARALLEL);
SET_DECL_RTL (DECL_RESULT (subr), gen_group_rtx (hard_reg));
}
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Set DECL_REGISTER flag so that expand_function_end will copy the
result to the real return register(s). */
DECL_REGISTER (DECL_RESULT (subr)) = 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* Initialize rtx for parameters and local variables.
In some cases this requires emitting insns. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
assign_parms (subr);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If function gets a static chain arg, store it. */
if (cfun->static_chain_decl)
{
tree parm = cfun->static_chain_decl;
rtx local = gen_reg_rtx (Pmode);
set_decl_incoming_rtl (parm, static_chain_incoming_rtx);
SET_DECL_RTL (parm, local);
mark_reg_pointer (local, TYPE_ALIGN (TREE_TYPE (TREE_TYPE (parm))));
emit_move_insn (local, static_chain_incoming_rtx);
}
/* If the function receives a non-local goto, then store the
bits we need to restore the frame pointer. */
if (cfun->nonlocal_goto_save_area)
{
tree t_save;
rtx r_save;
/* ??? We need to do this save early. Unfortunately here is
before the frame variable gets declared. Help out... */
expand_var (TREE_OPERAND (cfun->nonlocal_goto_save_area, 0));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
t_save = build4 (ARRAY_REF, ptr_type_node,
cfun->nonlocal_goto_save_area,
integer_zero_node, NULL_TREE, NULL_TREE);
r_save = expand_expr (t_save, NULL_RTX, VOIDmode, EXPAND_WRITE);
r_save = convert_memory_address (Pmode, r_save);
emit_move_insn (r_save, virtual_stack_vars_rtx);
update_nonlocal_goto_save_area ();
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* The following was moved from init_function_start.
The move is supposed to make sdb output more accurate. */
/* Indicate the beginning of the function body,
as opposed to parm setup. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_note (NOTE_INSN_FUNCTION_BEG);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gcc_assert (NOTE_P (get_last_insn ()));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
parm_birth_insn = get_last_insn ();
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (current_function_profile)
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
{
#ifdef PROFILE_HOOK
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
PROFILE_HOOK (current_function_funcdef_no);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
#endif
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* After the display initializations is where the stack checking
probe should go. */
if(flag_stack_check)
stack_check_probe_note = emit_note (NOTE_INSN_DELETED);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Make sure there is a line number after the function entry setup code. */
force_next_line_note ();
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Undo the effects of init_dummy_function_start. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
expand_dummy_function_end (void)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
/* End any sequences that failed to be closed due to syntax errors. */
while (in_sequence_p ())
end_sequence ();
/* Outside function body, can't compute type's actual size
until next function's body starts. */
free_after_parsing (cfun);
free_after_compilation (cfun);
cfun = 0;
}
/* Call DOIT for each hard register used as a return value from
the current function. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
diddle_return_value (void (*doit) (rtx, void *), void *arg)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
rtx outgoing = current_function_return_rtx;
if (! outgoing)
return;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (REG_P (outgoing))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
(*doit) (outgoing, arg);
else if (GET_CODE (outgoing) == PARALLEL)
{
int i;
for (i = 0; i < XVECLEN (outgoing, 0); i++)
{
rtx x = XEXP (XVECEXP (outgoing, 0, i), 0);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (REG_P (x) && REGNO (x) < FIRST_PSEUDO_REGISTER)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
(*doit) (x, arg);
}
}
}
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
do_clobber_return_reg (rtx reg, void *arg ATTRIBUTE_UNUSED)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
emit_insn (gen_rtx_CLOBBER (VOIDmode, reg));
}
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
clobber_return_register (void)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
diddle_return_value (do_clobber_return_reg, NULL);
/* In case we do use pseudo to return value, clobber it too. */
if (DECL_RTL_SET_P (DECL_RESULT (current_function_decl)))
{
tree decl_result = DECL_RESULT (current_function_decl);
rtx decl_rtl = DECL_RTL (decl_result);
if (REG_P (decl_rtl) && REGNO (decl_rtl) >= FIRST_PSEUDO_REGISTER)
{
do_clobber_return_reg (decl_rtl, NULL);
}
}
}
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
do_use_return_reg (rtx reg, void *arg ATTRIBUTE_UNUSED)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
emit_insn (gen_rtx_USE (VOIDmode, reg));
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
use_return_register (void)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
diddle_return_value (do_use_return_reg, NULL);
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* Possibly warn about unused parameters. */
void
do_warn_unused_parameter (tree fn)
{
tree decl;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
for (decl = DECL_ARGUMENTS (fn);
decl; decl = TREE_CHAIN (decl))
if (!TREE_USED (decl) && TREE_CODE (decl) == PARM_DECL
&& DECL_NAME (decl) && !DECL_ARTIFICIAL (decl))
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
warning (OPT_Wunused_parameter, "unused parameter %q+D", decl);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
static GTY(()) rtx initial_trampoline;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* Generate RTL for the end of the current function. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
expand_function_end (void)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
rtx clobber_after;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If arg_pointer_save_area was referenced only from a nested
function, we will not have initialized it yet. Do that now. */
if (arg_pointer_save_area && ! cfun->arg_pointer_save_area_init)
get_arg_pointer_save_area (cfun);
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
/* If we are doing stack checking and this function makes calls,
do a stack probe at the start of the function to ensure we have enough
space for another stack frame. */
if (flag_stack_check && ! STACK_CHECK_BUILTIN)
{
rtx insn, seq;
for (insn = get_insns (); insn; insn = NEXT_INSN (insn))
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (CALL_P (insn))
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
{
start_sequence ();
probe_stack_range (STACK_CHECK_PROTECT,
GEN_INT (STACK_CHECK_MAX_FRAME_SIZE));
seq = get_insns ();
end_sequence ();
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
emit_insn_before (seq, stack_check_probe_note);
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
break;
}
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* Possibly warn about unused parameters.
When frontend does unit-at-a-time, the warning is already
issued at finalization time. */
if (warn_unused_parameter
&& !lang_hooks.callgraph.expand_function)
do_warn_unused_parameter (current_function_decl);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* End any sequences that failed to be closed due to syntax errors. */
while (in_sequence_p ())
end_sequence ();
clear_pending_stack_adjust ();
do_pending_stack_adjust ();
/* Mark the end of the function body.
If control reaches this insn, the function can drop through
without returning a value. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_note (NOTE_INSN_FUNCTION_END);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
/* Must mark the last line number note in the function, so that the test
coverage code can avoid counting the last line twice. This just tells
the code to ignore the immediately following line note, since there
already exists a copy of this note somewhere above. This line number
note is still needed for debugging though, so we can't delete it. */
if (flag_test_coverage)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_note (NOTE_INSN_REPEATED_LINE_NUMBER);
Merge rev 1.2 (a.out support) into EGCS 1.1.2.
1999-10-15 20:48:35 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Output a linenumber for the end of the function.
SDB depends on this. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
force_next_line_note ();
emit_line_note (input_location);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Before the return label (if any), clobber the return
registers so that they are not propagated live to the rest of
the function. This can only happen with functions that drop
through; if there had been a return statement, there would
have either been a return rtx, or a jump to the return label.
We delay actual code generation after the current_function_value_rtx
is computed. */
clobber_after = get_last_insn ();
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Output the label for the actual return from the function. */
emit_label (return_label);
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Quick fix for breakage of non-i386 arches in previous commit. Only use TARGET_PROFILER_EPILOGUE if it is defined.
2004-01-06 10:38:48 +00:00
#ifdef TARGET_PROFILER_EPILOGUE
Fix -mprofiler-epilogue on i386. This should be extended to other architectures in future. Submitted by: bde
2004-01-05 22:23:27 +00:00
if (current_function_profile && TARGET_PROFILER_EPILOGUE)
{
static rtx mexitcount_libfunc;
static int initialized;
if (!initialized)
{
mexitcount_libfunc = init_one_libfunc (".mexitcount");
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
initialized = 0;
Fix -mprofiler-epilogue on i386. This should be extended to other architectures in future. Submitted by: bde
2004-01-05 22:23:27 +00:00
}
emit_library_call (mexitcount_libfunc, LCT_NORMAL, VOIDmode, 0);
}
Quick fix for breakage of non-i386 arches in previous commit. Only use TARGET_PROFILER_EPILOGUE if it is defined.
2004-01-06 10:38:48 +00:00
#endif
Fix -mprofiler-epilogue on i386. This should be extended to other architectures in future. Submitted by: bde
2004-01-05 22:23:27 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (USING_SJLJ_EXCEPTIONS)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Let except.c know where it should emit the call to unregister
the function context for sjlj exceptions. */
if (flag_exceptions)
sjlj_emit_function_exit_after (get_last_insn ());
}
else
{
/* @@@ This is a kludge. We want to ensure that instructions that
may trap are not moved into the epilogue by scheduling, because
we don't always emit unwind information for the epilogue.
However, not all machine descriptions define a blockage insn, so
emit an ASM_INPUT to act as one. */
if (flag_non_call_exceptions)
emit_insn (gen_rtx_ASM_INPUT (VOIDmode, ""));
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If this is an implementation of throw, do what's necessary to
communicate between __builtin_eh_return and the epilogue. */
expand_eh_return ();
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If scalar return value was computed in a pseudo-reg, or was a named
return value that got dumped to the stack, copy that to the hard
return register. */
if (DECL_RTL_SET_P (DECL_RESULT (current_function_decl)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
tree decl_result = DECL_RESULT (current_function_decl);
rtx decl_rtl = DECL_RTL (decl_result);
if (REG_P (decl_rtl)
? REGNO (decl_rtl) >= FIRST_PSEUDO_REGISTER
: DECL_REGISTER (decl_result))
{
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
rtx real_decl_rtl = current_function_return_rtx;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
/* This should be set in assign_parms. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gcc_assert (REG_FUNCTION_VALUE_P (real_decl_rtl));
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If this is a BLKmode structure being returned in registers,
then use the mode computed in expand_return. Note that if
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
decl_rtl is memory, then its mode may have been changed,
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
but that current_function_return_rtx has not. */
if (GET_MODE (real_decl_rtl) == BLKmode)
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
PUT_MODE (real_decl_rtl, GET_MODE (decl_rtl));
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If a non-BLKmode return value should be padded at the least
significant end of the register, shift it left by the appropriate
amount. BLKmode results are handled using the group load/store
machinery. */
if (TYPE_MODE (TREE_TYPE (decl_result)) != BLKmode
&& targetm.calls.return_in_msb (TREE_TYPE (decl_result)))
{
emit_move_insn (gen_rtx_REG (GET_MODE (decl_rtl),
REGNO (real_decl_rtl)),
decl_rtl);
shift_return_value (GET_MODE (decl_rtl), true, real_decl_rtl);
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If a named return value dumped decl_return to memory, then
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
we may need to re-do the PROMOTE_MODE signed/unsigned
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
extension. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
else if (GET_MODE (real_decl_rtl) != GET_MODE (decl_rtl))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
int unsignedp = TYPE_UNSIGNED (TREE_TYPE (decl_result));
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
if (targetm.calls.promote_function_return (TREE_TYPE (current_function_decl)))
promote_mode (TREE_TYPE (decl_result), GET_MODE (decl_rtl),
&unsignedp, 1);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
convert_move (real_decl_rtl, decl_rtl, unsignedp);
}
else if (GET_CODE (real_decl_rtl) == PARALLEL)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
/* If expand_function_start has created a PARALLEL for decl_rtl,
move the result to the real return registers. Otherwise, do
a group load from decl_rtl for a named return. */
if (GET_CODE (decl_rtl) == PARALLEL)
emit_group_move (real_decl_rtl, decl_rtl);
else
emit_group_load (real_decl_rtl, decl_rtl,
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
TREE_TYPE (decl_result),
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
int_size_in_bytes (TREE_TYPE (decl_result)));
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* In the case of complex integer modes smaller than a word, we'll
need to generate some non-trivial bitfield insertions. Do that
on a pseudo and not the hard register. */
else if (GET_CODE (decl_rtl) == CONCAT
&& GET_MODE_CLASS (GET_MODE (decl_rtl)) == MODE_COMPLEX_INT
&& GET_MODE_BITSIZE (GET_MODE (decl_rtl)) <= BITS_PER_WORD)
{
int old_generating_concat_p;
rtx tmp;
old_generating_concat_p = generating_concat_p;
generating_concat_p = 0;
tmp = gen_reg_rtx (GET_MODE (decl_rtl));
generating_concat_p = old_generating_concat_p;
emit_move_insn (tmp, decl_rtl);
emit_move_insn (real_decl_rtl, tmp);
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
else
emit_move_insn (real_decl_rtl, decl_rtl);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* If returning a structure, arrange to return the address of the value
in a place where debuggers expect to find it.
If returning a structure PCC style,
the caller also depends on this value.
And current_function_returns_pcc_struct is not necessarily set. */
if (current_function_returns_struct
|| current_function_returns_pcc_struct)
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx value_address = DECL_RTL (DECL_RESULT (current_function_decl));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree type = TREE_TYPE (DECL_RESULT (current_function_decl));
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx outgoing;
if (DECL_BY_REFERENCE (DECL_RESULT (current_function_decl)))
type = TREE_TYPE (type);
else
value_address = XEXP (value_address, 0);
outgoing = targetm.calls.function_value (build_pointer_type (type),
current_function_decl, true);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Mark this as a function return value so integrate will delete the
assignment and USE below when inlining this function. */
REG_FUNCTION_VALUE_P (outgoing) = 1;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* The address may be ptr_mode and OUTGOING may be Pmode. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
value_address = convert_memory_address (GET_MODE (outgoing),
value_address);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_move_insn (outgoing, value_address);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Show return register used to hold result (in this case the address
of the result. */
current_function_return_rtx = outgoing;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Emit the actual code to clobber return register. */
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx seq;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
start_sequence ();
clobber_return_register ();
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
expand_naked_return ();
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
seq = get_insns ();
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
end_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
emit_insn_after (seq, clobber_after);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Output the label for the naked return from the function. */
emit_label (naked_return_label);
/* If stack protection is enabled for this function, check the guard. */
if (cfun->stack_protect_guard)
stack_protect_epilogue ();
/* If we had calls to alloca, and this machine needs
an accurate stack pointer to exit the function,
insert some code to save and restore the stack pointer. */
if (! EXIT_IGNORE_STACK
&& current_function_calls_alloca)
{
rtx tem = 0;
emit_stack_save (SAVE_FUNCTION, &tem, parm_birth_insn);
emit_stack_restore (SAVE_FUNCTION, tem, NULL_RTX);
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* ??? This should no longer be necessary since stupid is no longer with
us, but there are some parts of the compiler (eg reload_combine, and
sh mach_dep_reorg) that still try and compute their own lifetime info
instead of using the general framework. */
use_return_register ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
rtx
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
get_arg_pointer_save_area (struct function *f)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
rtx ret = f->x_arg_pointer_save_area;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (! ret)
{
ret = assign_stack_local_1 (Pmode, GET_MODE_SIZE (Pmode), 0, f);
f->x_arg_pointer_save_area = ret;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (f == cfun && ! f->arg_pointer_save_area_init)
{
rtx seq;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Save the arg pointer at the beginning of the function. The
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
generated stack slot may not be a valid memory address, so we
have to check it and fix it if necessary. */
start_sequence ();
emit_move_insn (validize_mem (ret), virtual_incoming_args_rtx);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
seq = get_insns ();
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
end_sequence ();
push_topmost_sequence ();
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
emit_insn_after (seq, entry_of_function ());
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
pop_topmost_sequence ();
}
return ret;
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Extend a vector that records the INSN_UIDs of INSNS
(a list of one or more insns). */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
static void
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
record_insns (rtx insns, VEC(int,heap) **vecp)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
rtx tmp;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (tmp = insns; tmp != NULL_RTX; tmp = NEXT_INSN (tmp))
VEC_safe_push (int, heap, *vecp, INSN_UID (tmp));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* Set the locator of the insn chain starting at INSN to LOC. */
static void
set_insn_locators (rtx insn, int loc)
{
while (insn != NULL_RTX)
{
if (INSN_P (insn))
INSN_LOCATOR (insn) = loc;
insn = NEXT_INSN (insn);
}
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Determine how many INSN_UIDs in VEC are part of INSN. Because we can
be running after reorg, SEQUENCE rtl is possible. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
static int
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
contains (rtx insn, VEC(int,heap) **vec)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
int i, j;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (NONJUMP_INSN_P (insn)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& GET_CODE (PATTERN (insn)) == SEQUENCE)
{
int count = 0;
for (i = XVECLEN (PATTERN (insn), 0) - 1; i >= 0; i--)
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (j = VEC_length (int, *vec) - 1; j >= 0; --j)
if (INSN_UID (XVECEXP (PATTERN (insn), 0, i))
== VEC_index (int, *vec, j))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
count++;
return count;
}
else
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (j = VEC_length (int, *vec) - 1; j >= 0; --j)
if (INSN_UID (insn) == VEC_index (int, *vec, j))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return 1;
}
return 0;
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
int
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
prologue_epilogue_contains (rtx insn)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (contains (insn, &prologue))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
return 1;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (contains (insn, &epilogue))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
return 1;
return 0;
}
int
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
sibcall_epilogue_contains (rtx insn)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
if (sibcall_epilogue)
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
return contains (insn, &sibcall_epilogue);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
return 0;
}
#ifdef HAVE_return
/* Insert gen_return at the end of block BB. This also means updating
block_for_insn appropriately. */
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_return_into_block (basic_block bb, rtx line_note)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_jump_insn_after (gen_return (), BB_END (bb));
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (line_note)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_note_copy_after (line_note, PREV_INSN (BB_END (bb)));
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
#endif /* HAVE_return */
#if defined(HAVE_epilogue) && defined(INCOMING_RETURN_ADDR_RTX)
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* These functions convert the epilogue into a variant that does not
modify the stack pointer. This is used in cases where a function
returns an object whose size is not known until it is computed.
The called function leaves the object on the stack, leaves the
stack depressed, and returns a pointer to the object.
What we need to do is track all modifications and references to the
stack pointer, deleting the modifications and changing the
references to point to the location the stack pointer would have
pointed to had the modifications taken place.
These functions need to be portable so we need to make as few
assumptions about the epilogue as we can. However, the epilogue
basically contains three things: instructions to reset the stack
pointer, instructions to reload registers, possibly including the
frame pointer, and an instruction to return to the caller.
We must be sure of what a relevant epilogue insn is doing. We also
make no attempt to validate the insns we make since if they are
invalid, we probably can't do anything valid. The intent is that
these routines get "smarter" as more and more machines start to use
them and they try operating on different epilogues.
We use the following structure to track what the part of the
epilogue that we've already processed has done. We keep two copies
of the SP equivalence, one for use during the insn we are
processing and one for use in the next insn. The difference is
because one part of a PARALLEL may adjust SP and the other may use
it. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
struct epi_info
{
rtx sp_equiv_reg; /* REG that SP is set from, perhaps SP. */
HOST_WIDE_INT sp_offset; /* Offset from SP_EQUIV_REG of present SP. */
rtx new_sp_equiv_reg; /* REG to be used at end of insn. */
HOST_WIDE_INT new_sp_offset; /* Offset to be used at end of insn. */
rtx equiv_reg_src; /* If nonzero, the value that SP_EQUIV_REG
should be set to once we no longer need
its value. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
rtx const_equiv[FIRST_PSEUDO_REGISTER]; /* Any known constant equivalences
for registers. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
};
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
static void handle_epilogue_set (rtx, struct epi_info *);
static void update_epilogue_consts (rtx, rtx, void *);
static void emit_equiv_load (struct epi_info *);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Modify INSN, a list of one or more insns that is part of the epilogue, to
no modifications to the stack pointer. Return the new list of insns. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
static rtx
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
keep_stack_depressed (rtx insns)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
int j;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
struct epi_info info;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
rtx insn, next;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* If the epilogue is just a single instruction, it must be OK as is. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (NEXT_INSN (insns) == NULL_RTX)
return insns;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Otherwise, start a sequence, initialize the information we have, and
process all the insns we were given. */
start_sequence ();
info.sp_equiv_reg = stack_pointer_rtx;
info.sp_offset = 0;
info.equiv_reg_src = 0;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
for (j = 0; j < FIRST_PSEUDO_REGISTER; j++)
info.const_equiv[j] = 0;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
insn = insns;
next = NULL_RTX;
while (insn != NULL_RTX)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
next = NEXT_INSN (insn);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (!INSN_P (insn))
{
add_insn (insn);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
insn = next;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
continue;
}
/* If this insn references the register that SP is equivalent to and
we have a pending load to that register, we must force out the load
first and then indicate we no longer know what SP's equivalent is. */
if (info.equiv_reg_src != 0
&& reg_referenced_p (info.sp_equiv_reg, PATTERN (insn)))
{
emit_equiv_load (&info);
info.sp_equiv_reg = 0;
}
info.new_sp_equiv_reg = info.sp_equiv_reg;
info.new_sp_offset = info.sp_offset;
/* If this is a (RETURN) and the return address is on the stack,
update the address and change to an indirect jump. */
if (GET_CODE (PATTERN (insn)) == RETURN
|| (GET_CODE (PATTERN (insn)) == PARALLEL
&& GET_CODE (XVECEXP (PATTERN (insn), 0, 0)) == RETURN))
{
rtx retaddr = INCOMING_RETURN_ADDR_RTX;
rtx base = 0;
HOST_WIDE_INT offset = 0;
rtx jump_insn, jump_set;
/* If the return address is in a register, we can emit the insn
unchanged. Otherwise, it must be a MEM and we see what the
base register and offset are. In any case, we have to emit any
pending load to the equivalent reg of SP, if any. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (REG_P (retaddr))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
emit_equiv_load (&info);
add_insn (insn);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
insn = next;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
continue;
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
else
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx ret_ptr;
gcc_assert (MEM_P (retaddr));
ret_ptr = XEXP (retaddr, 0);
if (REG_P (ret_ptr))
{
base = gen_rtx_REG (Pmode, REGNO (ret_ptr));
offset = 0;
}
else
{
gcc_assert (GET_CODE (ret_ptr) == PLUS
&& REG_P (XEXP (ret_ptr, 0))
&& GET_CODE (XEXP (ret_ptr, 1)) == CONST_INT);
base = gen_rtx_REG (Pmode, REGNO (XEXP (ret_ptr, 0)));
offset = INTVAL (XEXP (ret_ptr, 1));
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
/* If the base of the location containing the return pointer
is SP, we must update it with the replacement address. Otherwise,
just build the necessary MEM. */
retaddr = plus_constant (base, offset);
if (base == stack_pointer_rtx)
retaddr = simplify_replace_rtx (retaddr, stack_pointer_rtx,
plus_constant (info.sp_equiv_reg,
info.sp_offset));
retaddr = gen_rtx_MEM (Pmode, retaddr);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
MEM_NOTRAP_P (retaddr) = 1;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If there is a pending load to the equivalent register for SP
and we reference that register, we must load our address into
a scratch register and then do that load. */
if (info.equiv_reg_src
&& reg_overlap_mentioned_p (info.equiv_reg_src, retaddr))
{
unsigned int regno;
rtx reg;
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
if (HARD_REGNO_MODE_OK (regno, Pmode)
&& !fixed_regs[regno]
&& TEST_HARD_REG_BIT (regs_invalidated_by_call, regno)
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
&& !REGNO_REG_SET_P
(EXIT_BLOCK_PTR->il.rtl->global_live_at_start, regno)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
&& !refers_to_regno_p (regno,
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
regno + hard_regno_nregs[regno]
[Pmode],
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
info.equiv_reg_src, NULL)
&& info.const_equiv[regno] == 0)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
break;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gcc_assert (regno < FIRST_PSEUDO_REGISTER);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
reg = gen_rtx_REG (Pmode, regno);
emit_move_insn (reg, retaddr);
retaddr = reg;
}
emit_equiv_load (&info);
jump_insn = emit_jump_insn (gen_indirect_jump (retaddr));
/* Show the SET in the above insn is a RETURN. */
jump_set = single_set (jump_insn);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gcc_assert (jump_set);
SET_IS_RETURN_P (jump_set) = 1;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
/* If SP is not mentioned in the pattern and its equivalent register, if
any, is not modified, just emit it. Otherwise, if neither is set,
replace the reference to SP and emit the insn. If none of those are
true, handle each SET individually. */
else if (!reg_mentioned_p (stack_pointer_rtx, PATTERN (insn))
&& (info.sp_equiv_reg == stack_pointer_rtx
|| !reg_set_p (info.sp_equiv_reg, insn)))
add_insn (insn);
else if (! reg_set_p (stack_pointer_rtx, insn)
&& (info.sp_equiv_reg == stack_pointer_rtx
|| !reg_set_p (info.sp_equiv_reg, insn)))
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
int changed;
changed = validate_replace_rtx (stack_pointer_rtx,
plus_constant (info.sp_equiv_reg,
info.sp_offset),
insn);
gcc_assert (changed);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
add_insn (insn);
}
else if (GET_CODE (PATTERN (insn)) == SET)
handle_epilogue_set (PATTERN (insn), &info);
else if (GET_CODE (PATTERN (insn)) == PARALLEL)
{
for (j = 0; j < XVECLEN (PATTERN (insn), 0); j++)
if (GET_CODE (XVECEXP (PATTERN (insn), 0, j)) == SET)
handle_epilogue_set (XVECEXP (PATTERN (insn), 0, j), &info);
}
else
add_insn (insn);
info.sp_equiv_reg = info.new_sp_equiv_reg;
info.sp_offset = info.new_sp_offset;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* Now update any constants this insn sets. */
note_stores (PATTERN (insn), update_epilogue_consts, &info);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
insn = next;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
insns = get_insns ();
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
end_sequence ();
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return insns;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
/* SET is a SET from an insn in the epilogue. P is a pointer to the epi_info
structure that contains information about what we've seen so far. We
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
process this SET by either updating that data or by emitting one or
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
more insns. */
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
handle_epilogue_set (rtx set, struct epi_info *p)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
/* First handle the case where we are setting SP. Record what it is being
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
set from, which we must be able to determine */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (reg_set_p (stack_pointer_rtx, set))
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gcc_assert (SET_DEST (set) == stack_pointer_rtx);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
if (GET_CODE (SET_SRC (set)) == PLUS)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
p->new_sp_equiv_reg = XEXP (SET_SRC (set), 0);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
if (GET_CODE (XEXP (SET_SRC (set), 1)) == CONST_INT)
p->new_sp_offset = INTVAL (XEXP (SET_SRC (set), 1));
else
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
{
gcc_assert (REG_P (XEXP (SET_SRC (set), 1))
&& (REGNO (XEXP (SET_SRC (set), 1))
< FIRST_PSEUDO_REGISTER)
&& p->const_equiv[REGNO (XEXP (SET_SRC (set), 1))]);
p->new_sp_offset
= INTVAL (p->const_equiv[REGNO (XEXP (SET_SRC (set), 1))]);
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
else
p->new_sp_equiv_reg = SET_SRC (set), p->new_sp_offset = 0;
/* If we are adjusting SP, we adjust from the old data. */
if (p->new_sp_equiv_reg == stack_pointer_rtx)
{
p->new_sp_equiv_reg = p->sp_equiv_reg;
p->new_sp_offset += p->sp_offset;
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gcc_assert (p->new_sp_equiv_reg && REG_P (p->new_sp_equiv_reg));
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
return;
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Next handle the case where we are setting SP's equivalent
register. We must not already have a value to set it to. We
could update, but there seems little point in handling that case.
Note that we have to allow for the case where we are setting the
register set in the previous part of a PARALLEL inside a single
insn. But use the old offset for any updates within this insn.
We must allow for the case where the register is being set in a
different (usually wider) mode than Pmode). */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
else if (p->new_sp_equiv_reg != 0 && reg_set_p (p->new_sp_equiv_reg, set))
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gcc_assert (!p->equiv_reg_src
&& REG_P (p->new_sp_equiv_reg)
&& REG_P (SET_DEST (set))
&& (GET_MODE_BITSIZE (GET_MODE (SET_DEST (set)))
<= BITS_PER_WORD)
&& REGNO (p->new_sp_equiv_reg) == REGNO (SET_DEST (set)));
p->equiv_reg_src
= simplify_replace_rtx (SET_SRC (set), stack_pointer_rtx,
plus_constant (p->sp_equiv_reg,
p->sp_offset));
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
/* Otherwise, replace any references to SP in the insn to its new value
and emit the insn. */
else
{
SET_SRC (set) = simplify_replace_rtx (SET_SRC (set), stack_pointer_rtx,
plus_constant (p->sp_equiv_reg,
p->sp_offset));
SET_DEST (set) = simplify_replace_rtx (SET_DEST (set), stack_pointer_rtx,
plus_constant (p->sp_equiv_reg,
p->sp_offset));
emit_insn (set);
}
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* Update the tracking information for registers set to constants. */
static void
update_epilogue_consts (rtx dest, rtx x, void *data)
{
struct epi_info *p = (struct epi_info *) data;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
rtx new;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (!REG_P (dest) || REGNO (dest) >= FIRST_PSEUDO_REGISTER)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
return;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If we are either clobbering a register or doing a partial set,
show we don't know the value. */
else if (GET_CODE (x) == CLOBBER || ! rtx_equal_p (dest, SET_DEST (x)))
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
p->const_equiv[REGNO (dest)] = 0;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If we are setting it to a constant, record that constant. */
else if (GET_CODE (SET_SRC (x)) == CONST_INT)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
p->const_equiv[REGNO (dest)] = SET_SRC (x);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* If this is a binary operation between a register we have been tracking
and a constant, see if we can compute a new constant value. */
else if (ARITHMETIC_P (SET_SRC (x))
&& REG_P (XEXP (SET_SRC (x), 0))
&& REGNO (XEXP (SET_SRC (x), 0)) < FIRST_PSEUDO_REGISTER
&& p->const_equiv[REGNO (XEXP (SET_SRC (x), 0))] != 0
&& GET_CODE (XEXP (SET_SRC (x), 1)) == CONST_INT
&& 0 != (new = simplify_binary_operation
(GET_CODE (SET_SRC (x)), GET_MODE (dest),
p->const_equiv[REGNO (XEXP (SET_SRC (x), 0))],
XEXP (SET_SRC (x), 1)))
&& GET_CODE (new) == CONST_INT)
p->const_equiv[REGNO (dest)] = new;
/* Otherwise, we can't do anything with this value. */
else
p->const_equiv[REGNO (dest)] = 0;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Emit an insn to do the load shown in p->equiv_reg_src, if needed. */
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_equiv_load (struct epi_info *p)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
if (p->equiv_reg_src != 0)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
{
rtx dest = p->sp_equiv_reg;
if (GET_MODE (p->equiv_reg_src) != GET_MODE (dest))
dest = gen_rtx_REG (GET_MODE (p->equiv_reg_src),
REGNO (p->sp_equiv_reg));
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_move_insn (dest, p->equiv_reg_src);
p->equiv_reg_src = 0;
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin radar 6163705, Blocks prologues */
/* The function should only be called for Blocks functions.
On being called, the main instruction list for the Blocks function
may contain instructions for setting up the ref_decl and byref_decl
variables in the Block. Those isns really need to go before the
function prologue note rather than after. If such instructions are
present, they are identifiable by their source line number, which
will be one line preceding the declaration of the function. If
they are present, there will also be a source line note instruction
for that line.
This function does a set of things:
- It finds the first such prologue insn.
- It finds the last such prologue insn.
- It changes the insn locator of all such prologue insns to
the prologue locator.
- It finds the source line note for the bogus location and
removes it.
- It decides if it is safe to place the prolgoue end note
after the last prologue insn it finds, and if so, returns
the last prologue insn (otherwise it returns NULL).
This function makes the following checks to determine if it is
safe to move the prologue end note to just below the last
prologue insn it finds. If ALL of the checks succeed then it
is safe. If any check fails, this function returns NULL. The
checks it makes are:
- There were no INSN_P instructions that occurred before the
first prologue insn.
- If there are any non-prologue insns between the first & last
prologue insn, the non-prologue insns do not outnumber the
prologue insns.
- The first prologue insn & the last prologue insn are in the
same basic block.
*/
static rtx
find_block_prologue_insns (void)
{
rtx first_prologue_insn = NULL;
rtx last_prologue_insn = NULL;
rtx line_number_note = NULL;
rtx tmp_insn;
int num_prologue_insns = 0;
int total_insns = 0;
int prologue_line = DECL_SOURCE_LINE (cfun->decl) - 1;
bool other_insns_before_prologue = false;
bool start_of_fnbody_found = false;
/* Go through all the insns and find the first prologue insn, the
last prologue insn, the source line location note, and whether or
not there are any "real" insns that occur before the first
prologue insn. Re-set the insn locator for prologue insns to the
prologue locator. */
for (tmp_insn = get_insns(); tmp_insn; tmp_insn = NEXT_INSN (tmp_insn))
{
if (INSN_P (tmp_insn))
{
if (insn_line (tmp_insn) == prologue_line)
{
if (!first_prologue_insn)
first_prologue_insn = tmp_insn;
num_prologue_insns++;
last_prologue_insn = tmp_insn;
INSN_LOCATOR (tmp_insn) = prologue_locator;
}
else if (!first_prologue_insn
&& start_of_fnbody_found)
other_insns_before_prologue = true;
}
else if (NOTE_P (tmp_insn)
&& NOTE_LINE_NUMBER (tmp_insn) == NOTE_INSN_FUNCTION_BEG)
start_of_fnbody_found = true;
else if (NOTE_P (tmp_insn)
&& (XINT (tmp_insn, 5) == prologue_line))
line_number_note = tmp_insn;
}
/* If there were no prologue insns, return now. */
if (!first_prologue_insn)
return NULL;
/* If the source location note for the line before the beginning of the
function was found, remove it. */
if (line_number_note)
remove_insn (line_number_note);
/* If other real insns got moved above the prologue insns, we can't
pull out the prologue insns, so return now. */
if (other_insns_before_prologue && (optimize > 0))
return NULL;
/* Count the number of insns between the first prologue insn and the
last prologue insn; also count the number of non-prologue insns
between the first prologue insn and the last prologue insn. */
tmp_insn = first_prologue_insn;
while (tmp_insn != last_prologue_insn)
{
total_insns++;
tmp_insn = NEXT_INSN (tmp_insn);
}
total_insns++;
/* If more than half of the insns between the first & last prologue
insns are not prologue insns, then there is too much code that
got moved in between prologue insns (by optimizations), so we
will not try to pull it out. */
if ((num_prologue_insns * 2) <= total_insns)
return NULL;
/* Make sure all the prologue insns are within one basic block.
If the insns cross a basic block boundary, then there is a chance
that moving them will cause incorrect code, so don't do it. */
gcc_assert (first_prologue_insn != NULL);
gcc_assert (last_prologue_insn != NULL);
if (BLOCK_FOR_INSN (first_prologue_insn) !=
BLOCK_FOR_INSN (last_prologue_insn))
return NULL;
return last_prologue_insn;
}
/* APPLE LOCAL end radar 6163705, Blocks prologues */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Generate the prologue and epilogue RTL if the machine supports it. Thread
this into place with notes indicating where the prologue ends and where
the epilogue begins. Update the basic block information when possible. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
thread_prologue_and_epilogue_insns (rtx f ATTRIBUTE_UNUSED)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Fix conflicts.
2000-05-27 02:43:50 +00:00
int inserted = 0;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
edge e;
#if defined (HAVE_sibcall_epilogue) || defined (HAVE_epilogue) || defined (HAVE_return) || defined (HAVE_prologue)
rtx seq;
#endif
Fix conflicts.
2000-05-27 02:43:50 +00:00
#ifdef HAVE_prologue
rtx prologue_end = NULL_RTX;
#endif
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
#if defined (HAVE_epilogue) || defined(HAVE_return)
rtx epilogue_end = NULL_RTX;
#endif
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
edge_iterator ei;
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifdef HAVE_prologue
if (HAVE_prologue)
{
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin radar 6163705, Blocks prologues */
rtx last_prologue_insn = NULL;
if (BLOCK_SYNTHESIZED_FUNC (cfun->decl))
last_prologue_insn = find_block_prologue_insns();
/* APPLE LOCAL end radar 6163705, Blocks prologues */
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
start_sequence ();
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
seq = gen_prologue ();
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
emit_insn (seq);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Retain a map of the prologue insns. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
record_insns (seq, &prologue);
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin radar 6163705, Blocks prologues */
if (!last_prologue_insn)
prologue_end = emit_note (NOTE_INSN_PROLOGUE_END);
/* APPLE LOCAL end radar 6163705, Blocks prologues */
Update locally changed files to GCC 4.2.1. Approved by: re (kensmith)
2007-08-14 03:04:42 +00:00
#ifndef PROFILE_BEFORE_PROLOGUE
/* Ensure that instructions are not moved into the prologue when
profiling is on. The call to the profiling routine can be
emitted within the live range of a call-clobbered register. */
if (current_function_profile)
emit_insn (gen_rtx_ASM_INPUT (VOIDmode, ""));
#endif
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
seq = get_insns ();
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
end_sequence ();
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
set_insn_locators (seq, prologue_locator);
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Can't deal with multiple successors of the entry block
at the moment. Function should always have at least one
entry point. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
gcc_assert (single_succ_p (ENTRY_BLOCK_PTR));
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
insert_insn_on_edge (seq, single_succ_edge (ENTRY_BLOCK_PTR));
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
inserted = 1;
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin radar 6163705, Blocks prologues */
if (last_prologue_insn)
emit_note_after (NOTE_INSN_PROLOGUE_END, last_prologue_insn);
/* APPLE LOCAL end radar 6163705, Blocks prologues */ }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If the exit block has no non-fake predecessors, we don't need
an epilogue. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
FOR_EACH_EDGE (e, ei, EXIT_BLOCK_PTR->preds)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if ((e->flags & EDGE_FAKE) == 0)
break;
if (e == NULL)
goto epilogue_done;
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
#ifdef HAVE_return
if (optimize && HAVE_return)
{
/* If we're allowed to generate a simple return instruction,
then by definition we don't need a full epilogue. Examine
the block that falls through to EXIT. If it does not
contain any code, examine its predecessors and try to
emit (conditional) return instructions. */
basic_block last;
rtx label;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
FOR_EACH_EDGE (e, ei, EXIT_BLOCK_PTR->preds)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (e->flags & EDGE_FALLTHRU)
break;
if (e == NULL)
goto epilogue_done;
last = e->src;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Verify that there are no active instructions in the last block. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
label = BB_END (last);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
while (label && !LABEL_P (label))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (active_insn_p (label))
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
break;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
label = PREV_INSN (label);
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (BB_HEAD (last) == label && LABEL_P (label))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
edge_iterator ei2;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
rtx epilogue_line_note = NULL_RTX;
/* Locate the line number associated with the closing brace,
if we can find one. */
for (seq = get_last_insn ();
seq && ! active_insn_p (seq);
seq = PREV_INSN (seq))
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (NOTE_P (seq) && NOTE_LINE_NUMBER (seq) > 0)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
epilogue_line_note = seq;
break;
}
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (ei2 = ei_start (last->preds); (e = ei_safe_edge (ei2)); )
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
basic_block bb = e->src;
rtx jump;
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
if (bb == ENTRY_BLOCK_PTR)
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
{
ei_next (&ei2);
continue;
}
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
jump = BB_END (bb);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (!JUMP_P (jump) || JUMP_LABEL (jump) != label)
{
ei_next (&ei2);
continue;
}
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If we have an unconditional jump, we can replace that
with a simple return instruction. */
if (simplejump_p (jump))
{
emit_return_into_block (bb, epilogue_line_note);
delete_insn (jump);
}
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If we have a conditional jump, we can try to replace
that with a conditional return instruction. */
else if (condjump_p (jump))
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (! redirect_jump (jump, 0, 0))
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
{
ei_next (&ei2);
continue;
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* If this block has only one successor, it both jumps
and falls through to the fallthru block, so we can't
delete the edge. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (single_succ_p (bb))
{
ei_next (&ei2);
continue;
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
else
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
{
ei_next (&ei2);
continue;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Fix up the CFG for the successful change we just made. */
redirect_edge_succ (e, EXIT_BLOCK_PTR);
}
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Emit a return insn for the exit fallthru block. Whether
this is still reachable will be determined later. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_barrier_after (BB_END (last));
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
emit_return_into_block (last, epilogue_line_note);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
epilogue_end = BB_END (last);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
single_succ_edge (last)->flags &= ~EDGE_FALLTHRU;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
goto epilogue_done;
}
}
#endif
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Find the edge that falls through to EXIT. Other edges may exist
due to RETURN instructions, but those don't need epilogues.
There really shouldn't be a mixture -- either all should have
been converted or none, however... */
FOR_EACH_EDGE (e, ei, EXIT_BLOCK_PTR->preds)
if (e->flags & EDGE_FALLTHRU)
break;
if (e == NULL)
goto epilogue_done;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
#ifdef HAVE_epilogue
if (HAVE_epilogue)
{
start_sequence ();
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
epilogue_end = emit_note (NOTE_INSN_EPILOGUE_BEG);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
seq = gen_epilogue ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
#ifdef INCOMING_RETURN_ADDR_RTX
/* If this function returns with the stack depressed and we can support
it, massage the epilogue to actually do that. */
if (TREE_CODE (TREE_TYPE (current_function_decl)) == FUNCTION_TYPE
&& TYPE_RETURNS_STACK_DEPRESSED (TREE_TYPE (current_function_decl)))
seq = keep_stack_depressed (seq);
#endif
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
emit_jump_insn (seq);
/* Retain a map of the epilogue insns. */
record_insns (seq, &epilogue);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
set_insn_locators (seq, epilogue_locator);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
seq = get_insns ();
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
end_sequence ();
insert_insn_on_edge (seq, e);
inserted = 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
else
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
{
basic_block cur_bb;
if (! next_active_insn (BB_END (e->src)))
goto epilogue_done;
/* We have a fall-through edge to the exit block, the source is not
at the end of the function, and there will be an assembler epilogue
at the end of the function.
We can't use force_nonfallthru here, because that would try to
use return. Inserting a jump 'by hand' is extremely messy, so
we take advantage of cfg_layout_finalize using
fixup_fallthru_exit_predecessor. */
cfg_layout_initialize (0);
FOR_EACH_BB (cur_bb)
if (cur_bb->index >= NUM_FIXED_BLOCKS
&& cur_bb->next_bb->index >= NUM_FIXED_BLOCKS)
cur_bb->aux = cur_bb->next_bb;
cfg_layout_finalize ();
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
epilogue_done:
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Fix conflicts.
2000-05-27 02:43:50 +00:00
if (inserted)
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
commit_edge_insertions ();
Fix conflicts.
2000-05-27 02:43:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
#ifdef HAVE_sibcall_epilogue
/* Emit sibling epilogues before any sibling call sites. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
for (ei = ei_start (EXIT_BLOCK_PTR->preds); (e = ei_safe_edge (ei)); )
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
basic_block bb = e->src;
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
rtx insn = BB_END (bb);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (!CALL_P (insn)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
|| ! SIBLING_CALL_P (insn))
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
{
ei_next (&ei);
continue;
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
start_sequence ();
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
emit_insn (gen_sibcall_epilogue ());
seq = get_insns ();
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
end_sequence ();
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Retain a map of the epilogue insns. Used in life analysis to
avoid getting rid of sibcall epilogue insns. Do this before we
actually emit the sequence. */
record_insns (seq, &sibcall_epilogue);
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
set_insn_locators (seq, epilogue_locator);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
emit_insn_before (seq, insn);
ei_next (&ei);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
#endif
Fix conflicts.
2000-05-27 02:43:50 +00:00
#ifdef HAVE_prologue
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* This is probably all useless now that we use locators. */
Fix conflicts.
2000-05-27 02:43:50 +00:00
if (prologue_end)
{
rtx insn, prev;
/* GDB handles `break f' by setting a breakpoint on the first
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
line note after the prologue. Which means (1) that if
Fix conflicts.
2000-05-27 02:43:50 +00:00
there are line number notes before where we inserted the
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
prologue we should move them, and (2) we should generate a
note before the end of the first basic block, if there isn't
one already there.
Fix conflicts.
2000-05-27 02:43:50 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
??? This behavior is completely broken when dealing with
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
multiple entry functions. We simply place the note always
into first basic block and let alternate entry points
to be missed.
*/
for (insn = prologue_end; insn; insn = prev)
Fix conflicts.
2000-05-27 02:43:50 +00:00
{
prev = PREV_INSN (insn);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (NOTE_P (insn) && NOTE_LINE_NUMBER (insn) > 0)
Fix conflicts.
2000-05-27 02:43:50 +00:00
{
/* Note that we cannot reorder the first insn in the
chain, since rest_of_compilation relies on that
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
remaining constant. */
Fix conflicts.
2000-05-27 02:43:50 +00:00
if (prev == NULL)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
break;
reorder_insns (insn, insn, prologue_end);
Fix conflicts.
2000-05-27 02:43:50 +00:00
}
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Find the last line number note in the first block. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
for (insn = BB_END (ENTRY_BLOCK_PTR->next_bb);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
insn != prologue_end && insn;
insn = PREV_INSN (insn))
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (NOTE_P (insn) && NOTE_LINE_NUMBER (insn) > 0)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
break;
/* If we didn't find one, make a copy of the first line number
we run across. */
if (! insn)
Fix conflicts.
2000-05-27 02:43:50 +00:00
{
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
for (insn = next_active_insn (prologue_end);
insn;
insn = PREV_INSN (insn))
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (NOTE_P (insn) && NOTE_LINE_NUMBER (insn) > 0)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
emit_note_copy_after (insn, prologue_end);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
break;
}
Fix conflicts.
2000-05-27 02:43:50 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
#endif
#ifdef HAVE_epilogue
if (epilogue_end)
{
rtx insn, next;
/* Similarly, move any line notes that appear after the epilogue.
There is no need, however, to be quite so anal about the existence
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
of such a note. Also move the NOTE_INSN_FUNCTION_END and (possibly)
NOTE_INSN_FUNCTION_BEG notes, as those can be relevant for debug
info generation. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
for (insn = epilogue_end; insn; insn = next)
{
next = NEXT_INSN (insn);
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (NOTE_P (insn)
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
&& (NOTE_LINE_NUMBER (insn) > 0
|| NOTE_LINE_NUMBER (insn) == NOTE_INSN_FUNCTION_BEG
|| NOTE_LINE_NUMBER (insn) == NOTE_INSN_FUNCTION_END))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
reorder_insns (insn, insn, PREV_INSN (epilogue_end));
}
}
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* Reposition the prologue-end and epilogue-begin notes after instruction
scheduling and delayed branch scheduling. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
reposition_prologue_and_epilogue_notes (rtx f ATTRIBUTE_UNUSED)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
#if defined (HAVE_prologue) || defined (HAVE_epilogue)
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
rtx insn, last, note;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
int len;
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if ((len = VEC_length (int, prologue)) > 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
last = 0, note = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Scan from the beginning until we reach the last prologue insn.
We apparently can't depend on basic_block_{head,end} after
reorg has run. */
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
for (insn = f; insn; insn = NEXT_INSN (insn))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (NOTE_P (insn))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
if (NOTE_LINE_NUMBER (insn) == NOTE_INSN_PROLOGUE_END)
note = insn;
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
else if (contains (insn, &prologue))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
last = insn;
if (--len == 0)
break;
}
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
if (last)
{
/* Find the prologue-end note if we haven't already, and
move it to just after the last prologue insn. */
if (note == 0)
{
for (note = last; (note = NEXT_INSN (note));)
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (NOTE_P (note)
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
&& NOTE_LINE_NUMBER (note) == NOTE_INSN_PROLOGUE_END)
break;
}
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
/* Avoid placing note between CODE_LABEL and BASIC_BLOCK note. */
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (LABEL_P (last))
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
last = NEXT_INSN (last);
reorder_insns (note, note, last);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if ((len = VEC_length (int, epilogue)) > 0)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
last = 0, note = 0;
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
/* Scan from the end until we reach the first epilogue insn.
We apparently can't depend on basic_block_{head,end} after
reorg has run. */
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
for (insn = get_last_insn (); insn; insn = PREV_INSN (insn))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (NOTE_P (insn))
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
if (NOTE_LINE_NUMBER (insn) == NOTE_INSN_EPILOGUE_BEG)
note = insn;
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
else if (contains (insn, &epilogue))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
last = insn;
if (--len == 0)
break;
}
}
Merge rev 1.2 (a.out support) into GCC 2.95.1.
1999-10-26 08:53:03 +00:00
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
if (last)
{
/* Find the epilogue-begin note if we haven't already, and
move it to just before the first epilogue insn. */
if (note == 0)
{
for (note = insn; (note = PREV_INSN (note));)
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
if (NOTE_P (note)
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
&& NOTE_LINE_NUMBER (note) == NOTE_INSN_EPILOGUE_BEG)
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge rev 1.2 (a.out support) into the GCC 3.1 prerelease.
2002-05-09 21:44:15 +00:00
if (PREV_INSN (last) != note)
reorder_insns (note, note, PREV_INSN (last));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
#endif /* HAVE_prologue or HAVE_epilogue */
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Resets insn_block_boundaries array. */
void
reset_block_changes (void)
{
cfun->ib_boundaries_block = VEC_alloc (tree, gc, 100);
VEC_quick_push (tree, cfun->ib_boundaries_block, NULL_TREE);
}
/* Record the boundary for BLOCK. */
void
record_block_change (tree block)
{
int i, n;
tree last_block;
if (!block)
return;
if(!cfun->ib_boundaries_block)
return;
last_block = VEC_pop (tree, cfun->ib_boundaries_block);
n = get_max_uid ();
for (i = VEC_length (tree, cfun->ib_boundaries_block); i < n; i++)
VEC_safe_push (tree, gc, cfun->ib_boundaries_block, last_block);
VEC_safe_push (tree, gc, cfun->ib_boundaries_block, block);
}
/* Finishes record of boundaries. */
void
finalize_block_changes (void)
{
record_block_change (DECL_INITIAL (current_function_decl));
}
/* For INSN return the BLOCK it belongs to. */
void
check_block_change (rtx insn, tree *block)
{
unsigned uid = INSN_UID (insn);
if (uid >= VEC_length (tree, cfun->ib_boundaries_block))
return;
*block = VEC_index (tree, cfun->ib_boundaries_block, uid);
}
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Releases the ib_boundaries_block records. */
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
void
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
free_block_changes (void)
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
VEC_free (tree, gc, cfun->ib_boundaries_block);
Merge rev 1.2 (a.out support) into GCC 3.1-snap.
2002-02-01 19:42:45 +00:00
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
/* Returns the name of the current function. */
const char *
current_function_name (void)
{
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
return lang_hooks.decl_printable_name (cfun->decl, 2);
}
static unsigned int
rest_of_handle_check_leaf_regs (void)
{
#ifdef LEAF_REGISTERS
current_function_uses_only_leaf_regs
= optimize > 0 && only_leaf_regs_used () && leaf_function_p ();
#endif
return 0;
}
/* Insert a TYPE into the used types hash table of CFUN. */
static void
used_types_insert_helper (tree type, struct function *func)
{
if (type != NULL && func != NULL)
{
void **slot;
if (func->used_types_hash == NULL)
func->used_types_hash = htab_create_ggc (37, htab_hash_pointer,
htab_eq_pointer, NULL);
slot = htab_find_slot (func->used_types_hash, type, INSERT);
if (*slot == NULL)
*slot = type;
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. 1.19 Fix -mprofiler-epilogue on i386.
2004-07-28 04:01:01 +00:00
}
Merge local changes for -mprofiler-epilogue support.
2007-05-19 02:18:38 +00:00
/* Given a type, insert it into the used hash table in cfun. */
void
used_types_insert (tree t)
{
while (POINTER_TYPE_P (t) || TREE_CODE (t) == ARRAY_TYPE)
t = TREE_TYPE (t);
t = TYPE_MAIN_VARIANT (t);
if (debug_info_level > DINFO_LEVEL_NONE)
used_types_insert_helper (t, cfun);
}
struct tree_opt_pass pass_leaf_regs =
{
NULL, /* name */
NULL, /* gate */
rest_of_handle_check_leaf_regs, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
0, /* tv_id */
0, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
0, /* todo_flags_finish */
0 /* letter */
};
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
#include "gt-function.h"
Reference in New Issue Copy Permalink