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freebsd-skq/contrib/gcc/stmt.c

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Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Expands front end tree to back end RTL for GCC
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
along with GCC; see the file COPYING. If not, write to the Free
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
above the level of expressions, using subroutines in exp*.c and emit-rtl.c.
The functions whose names start with `expand_' are called by the
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expander to generate RTL instructions for various kinds of constructs. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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"
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#include "system.h"
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +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"
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
#include "hard-reg-set.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 "tree.h"
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#include "tm_p.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 "flags.h"
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +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 "insn-config.h"
#include "expr.h"
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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 "recog.h"
#include "machmode.h"
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#include "toplev.h"
#include "output.h"
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#include "ggc.h"
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
#include "langhooks.h"
#include "predict.h"
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
#include "optabs.h"
#include "target.h"
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
#include "regs.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
/* Functions and data structures for expanding case statements. */
/* Case label structure, used to hold info on labels within case
statements. We handle "range" labels; for a single-value label
as in C, the high and low limits are the same.
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
We start with a vector of case nodes sorted in ascending order, and
the default label as the last element in the vector. Before expanding
to RTL, we transform this vector into a list linked via the RIGHT
fields in the case_node struct. Nodes with higher case values are
later in the 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
Switch statements can be output in three forms. A branch table is
used if there are more than a few labels and the labels are dense
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
within the range between the smallest and largest case value. If a
branch table is used, no further manipulations are done with the case
node chain.
The alternative to the use of a branch table is to generate a series
of compare and jump insns. When that is done, we use the LEFT, RIGHT,
and PARENT fields to hold a binary tree. Initially the tree is
totally unbalanced, with everything on the right. We balance the tree
with nodes on the left having lower case values than the parent
and nodes on the right having higher values. We then output the tree
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
in order.
For very small, suitable switch statements, we can generate a series
of simple bit test and branches instead. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
struct case_node 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
{
struct case_node *left; /* Left son in binary tree */
struct case_node *right; /* Right son in binary tree; also node chain */
struct case_node *parent; /* Parent of node in binary tree */
tree low; /* Lowest index value for this label */
tree high; /* Highest index value for this label */
tree code_label; /* Label to jump to when node matches */
};
typedef struct case_node case_node;
typedef struct case_node *case_node_ptr;
/* These are used by estimate_case_costs and balance_case_nodes. */
/* This must be a signed type, and non-ANSI compilers lack signed char. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
static short cost_table_[129];
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 use_cost_table;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
static int cost_table_initialized;
/* Special care is needed because we allow -1, but TREE_INT_CST_LOW
is unsigned. */
#define COST_TABLE(I) cost_table_[(unsigned HOST_WIDE_INT) ((I) + 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
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
static int n_occurrences (int, const char *);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
static bool tree_conflicts_with_clobbers_p (tree, HARD_REG_SET *);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
static void expand_nl_goto_receiver (void);
static bool check_operand_nalternatives (tree, tree);
static bool check_unique_operand_names (tree, tree);
static char *resolve_operand_name_1 (char *, tree, tree);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
static void expand_null_return_1 (void);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
static void expand_value_return (rtx);
static int estimate_case_costs (case_node_ptr);
static bool lshift_cheap_p (void);
static int case_bit_test_cmp (const void *, const void *);
static void emit_case_bit_tests (tree, tree, tree, tree, case_node_ptr, rtx);
static void balance_case_nodes (case_node_ptr *, case_node_ptr);
static int node_has_low_bound (case_node_ptr, tree);
static int node_has_high_bound (case_node_ptr, tree);
static int node_is_bounded (case_node_ptr, tree);
static void emit_case_nodes (rtx, case_node_ptr, rtx, tree);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
static struct case_node *add_case_node (struct case_node *, tree,
tree, tree, tree);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +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 the rtx-label that corresponds to a LABEL_DECL,
creating it if necessary. */
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
label_rtx (tree 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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (TREE_CODE (label) == LABEL_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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (!DECL_RTL_SET_P (label))
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
{
rtx r = gen_label_rtx ();
gcc: Add support for label attributes and "unavailable" attribute. Apple GCC has extensions to support for both label attributes and an "unavailable" attribute. These are critical for objc but are also useful in regular C/C++. Apparently at least the label attributes might have found their way to upstream GCC but the code doesn't seem available on the GPLv2 tree so we are taking the code directly from Apple. To make this clearer we are preserving the annoying "APPLE LOCAL" tags and the ChangeLogs when they are available. Obtained from: Apple GCC 4.2 - 5531 MFC after: 3 weeks
2013-12-28 20:30:31 +00:00
/* APPLE LOCAL begin for-fsf-4_4 3274130 5295549 */ \
unsigned align = DECL_ALIGN_UNIT (label);
int align_log2 = exact_log2 (align);
/* APPLE LOCAL end for-fsf-4_4 3274130 5295549 */ \
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
SET_DECL_RTL (label, r);
if (FORCED_LABEL (label) || DECL_NONLOCAL (label))
LABEL_PRESERVE_P (r) = 1;
gcc: Add support for label attributes and "unavailable" attribute. Apple GCC has extensions to support for both label attributes and an "unavailable" attribute. These are critical for objc but are also useful in regular C/C++. Apparently at least the label attributes might have found their way to upstream GCC but the code doesn't seem available on the GPLv2 tree so we are taking the code directly from Apple. To make this clearer we are preserving the annoying "APPLE LOCAL" tags and the ChangeLogs when they are available. Obtained from: Apple GCC 4.2 - 5531 MFC after: 3 weeks
2013-12-28 20:30:31 +00:00
/* APPLE LOCAL begin for-fsf-4_4 3274130 5295549 */ \
if (align_log2 >= 0 && align_log2 <= 0xFF)
SET_LABEL_ALIGN (r, align_log2, align - 1);
/* APPLE LOCAL end for-fsf-4_4 3274130 5295549 */ \
GCC 4.2.0 release.
2007-05-19 01:19:51 +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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return DECL_RTL (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
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* As above, but also put it on the forced-reference list of the
function that contains it. */
rtx
force_label_rtx (tree label)
{
rtx ref = label_rtx (label);
tree function = decl_function_context (label);
struct function *p;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (function);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (function != current_function_decl)
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
p = find_function_data (function);
else
p = cfun;
p->expr->x_forced_labels = gen_rtx_EXPR_LIST (VOIDmode, ref,
p->expr->x_forced_labels);
return ref;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
/* Add an unconditional jump to LABEL as the next sequential instruction. */
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_jump (rtx 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
{
do_pending_stack_adjust ();
emit_jump_insn (gen_jump (label));
emit_barrier ();
}
/* Emit code to jump to the address
specified by the pointer expression EXP. */
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_computed_goto (tree exp)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
rtx x = expand_normal (exp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
x = convert_memory_address (Pmode, 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
do_pending_stack_adjust ();
emit_indirect_jump (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
}
/* Handle goto statements and the labels that they can go to. */
/* Specify the location in the RTL code of a label LABEL,
which is a LABEL_DECL tree node.
gcc: Add support for label attributes and "unavailable" attribute. Apple GCC has extensions to support for both label attributes and an "unavailable" attribute. These are critical for objc but are also useful in regular C/C++. Apparently at least the label attributes might have found their way to upstream GCC but the code doesn't seem available on the GPLv2 tree so we are taking the code directly from Apple. To make this clearer we are preserving the annoying "APPLE LOCAL" tags and the ChangeLogs when they are available. Obtained from: Apple GCC 4.2 - 5531 MFC after: 3 weeks
2013-12-28 20:30:31 +00:00
APPLE LOCAL begin for-fsf-4_4 3274130 5295549
This is used for those labels created by the front-end that survive
through CFG generation, including all user labels. (Some labels
are removed by cleanup_dead_labels in tree-cfg.c.)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 label attributes and "unavailable" attribute. Apple GCC has extensions to support for both label attributes and an "unavailable" attribute. These are critical for objc but are also useful in regular C/C++. Apparently at least the label attributes might have found their way to upstream GCC but the code doesn't seem available on the GPLv2 tree so we are taking the code directly from Apple. To make this clearer we are preserving the annoying "APPLE LOCAL" tags and the ChangeLogs when they are available. Obtained from: Apple GCC 4.2 - 5531 MFC after: 3 weeks
2013-12-28 20:30:31 +00:00
APPLE LOCAL end for-fsf-4_4 3274130 5295549
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Note that this has nothing to do with defining label *names*.
Languages vary in how they do that and what that even means. */
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_label (tree 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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
rtx label_r = label_rtx (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
do_pending_stack_adjust ();
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
emit_label (label_r);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (DECL_NAME (label))
LABEL_NAME (DECL_RTL (label)) = IDENTIFIER_POINTER (DECL_NAME (label));
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (DECL_NONLOCAL (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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_nl_goto_receiver ();
nonlocal_goto_handler_labels
= gen_rtx_EXPR_LIST (VOIDmode, label_r,
nonlocal_goto_handler_labels);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (FORCED_LABEL (label))
forced_labels = gen_rtx_EXPR_LIST (VOIDmode, label_r, forced_labels);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (DECL_NONLOCAL (label) || FORCED_LABEL (label))
maybe_set_first_label_num (label_r);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 RTL code for a `goto' statement with target label LABEL.
LABEL should be a LABEL_DECL tree node that was or will later be
defined with `expand_label'. */
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_goto (tree 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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
#ifdef ENABLE_CHECKING
/* Check for a nonlocal goto to a containing function. Should have
gotten translated to __builtin_nonlocal_goto. */
tree context = decl_function_context (label);
gcc_assert (!context || context == 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
emit_jump (label_rtx (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
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* Return the number of times character C occurs in string S. */
static int
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
n_occurrences (int c, const char *s)
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
{
int n = 0;
while (*s)
n += (*s++ == c);
return n;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 RTL for an asm statement (explicit assembler code).
Gcc 3.2.2-release.
2003-02-10 05:41:50 +00:00
STRING is a STRING_CST node containing the assembler code text,
or an ADDR_EXPR containing a STRING_CST. VOL nonzero means the
insn is volatile; don't optimize it. */
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
static void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_asm (tree string, int vol)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 3.2.2-release.
2003-02-10 05:41:50 +00:00
rtx body;
if (TREE_CODE (string) == ADDR_EXPR)
string = TREE_OPERAND (string, 0);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
body = gen_rtx_ASM_INPUT (VOIDmode,
ggc_strdup (TREE_STRING_POINTER (string)));
Gcc 3.2.2-release.
2003-02-10 05:41:50 +00:00
MEM_VOLATILE_P (body) = vol;
emit_insn (body);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Parse the output constraint pointed to by *CONSTRAINT_P. It is the
OPERAND_NUMth output operand, indexed from zero. There are NINPUTS
inputs and NOUTPUTS outputs to this extended-asm. Upon return,
*ALLOWS_MEM will be TRUE iff the constraint allows the use of a
memory operand. Similarly, *ALLOWS_REG will be TRUE iff the
constraint allows the use of a register operand. And, *IS_INOUT
will be true if the operand is read-write, i.e., if it is used as
an input as well as an output. If *CONSTRAINT_P is not in
canonical form, it will be made canonical. (Note that `+' will be
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
replaced with `=' as part of this process.)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Returns TRUE if all went well; FALSE if an error occurred. */
bool
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
parse_output_constraint (const char **constraint_p, int operand_num,
int ninputs, int noutputs, bool *allows_mem,
bool *allows_reg, bool *is_inout)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
const char *constraint = *constraint_p;
const char *p;
/* Assume the constraint doesn't allow the use of either a register
or memory. */
*allows_mem = false;
*allows_reg = false;
/* Allow the `=' or `+' to not be at the beginning of the string,
since it wasn't explicitly documented that way, and there is a
large body of code that puts it last. Swap the character to
the front, so as not to uglify any place else. */
p = strchr (constraint, '=');
if (!p)
p = strchr (constraint, '+');
/* If the string doesn't contain an `=', issue an error
message. */
if (!p)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("output operand constraint lacks %<=%>");
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return false;
}
/* If the constraint begins with `+', then the operand is both read
from and written to. */
*is_inout = (*p == '+');
/* Canonicalize the output constraint so that it begins with `='. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (p != constraint || *is_inout)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
char *buf;
size_t c_len = strlen (constraint);
if (p != constraint)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
warning (0, "output constraint %qc for operand %d "
"is not at the beginning",
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
*p, operand_num);
/* Make a copy of the constraint. */
buf = alloca (c_len + 1);
strcpy (buf, constraint);
/* Swap the first character and the `=' or `+'. */
buf[p - constraint] = buf[0];
/* Make sure the first character is an `='. (Until we do this,
it might be a `+'.) */
buf[0] = '=';
/* Replace the constraint with the canonicalized string. */
*constraint_p = ggc_alloc_string (buf, c_len);
constraint = *constraint_p;
}
/* Loop through the constraint string. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
for (p = constraint + 1; *p; p += CONSTRAINT_LEN (*p, p))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
switch (*p)
{
case '+':
case '=':
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("operand constraint contains incorrectly positioned "
"%<+%> or %<=%>");
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return false;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case '%':
if (operand_num + 1 == ninputs + noutputs)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("%<%%%> constraint used with last operand");
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return false;
}
break;
case 'V': case 'm': case 'o':
*allows_mem = true;
break;
case '?': case '!': case '*': case '&': case '#':
case 'E': case 'F': case 'G': case 'H':
case 's': case 'i': case 'n':
case 'I': case 'J': case 'K': case 'L': case 'M':
case 'N': case 'O': case 'P': case ',':
break;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
case '[':
error ("matching constraint not valid in output operand");
return false;
case '<': case '>':
/* ??? Before flow, auto inc/dec insns are not supposed to exist,
excepting those that expand_call created. So match memory
and hope. */
*allows_mem = true;
break;
case 'g': case 'X':
*allows_reg = true;
*allows_mem = true;
break;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case 'p': case 'r':
*allows_reg = true;
break;
default:
if (!ISALPHA (*p))
break;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (REG_CLASS_FROM_CONSTRAINT (*p, p) != NO_REGS)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
*allows_reg = true;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
#ifdef EXTRA_CONSTRAINT_STR
else if (EXTRA_ADDRESS_CONSTRAINT (*p, p))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
*allows_reg = true;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
else if (EXTRA_MEMORY_CONSTRAINT (*p, p))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
*allows_mem = true;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else
{
/* Otherwise we can't assume anything about the nature of
the constraint except that it isn't purely registers.
Treat it like "g" and hope for the best. */
*allows_reg = true;
*allows_mem = true;
}
#endif
break;
}
return true;
}
/* Similar, but for input constraints. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
bool
parse_input_constraint (const char **constraint_p, int input_num,
int ninputs, int noutputs, int ninout,
const char * const * constraints,
bool *allows_mem, bool *allows_reg)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
const char *constraint = *constraint_p;
const char *orig_constraint = constraint;
size_t c_len = strlen (constraint);
size_t j;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
bool saw_match = false;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Assume the constraint doesn't allow the use of either
a register or memory. */
*allows_mem = false;
*allows_reg = false;
/* Make sure constraint has neither `=', `+', nor '&'. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
for (j = 0; j < c_len; j += CONSTRAINT_LEN (constraint[j], constraint+j))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
switch (constraint[j])
{
case '+': case '=': case '&':
if (constraint == orig_constraint)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("input operand constraint contains %qc", constraint[j]);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return false;
}
break;
case '%':
if (constraint == orig_constraint
&& input_num + 1 == ninputs - ninout)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("%<%%%> constraint used with last operand");
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return false;
}
break;
case 'V': case 'm': case 'o':
*allows_mem = true;
break;
case '<': case '>':
case '?': case '!': case '*': case '#':
case 'E': case 'F': case 'G': case 'H':
case 's': case 'i': case 'n':
case 'I': case 'J': case 'K': case 'L': case 'M':
case 'N': case 'O': case 'P': case ',':
break;
/* Whether or not a numeric constraint allows a register is
decided by the matching constraint, and so there is no need
to do anything special with them. We must handle them in
the default case, so that we don't unnecessarily force
operands to memory. */
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
{
char *end;
unsigned long match;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
saw_match = true;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
match = strtoul (constraint + j, &end, 10);
if (match >= (unsigned long) noutputs)
{
error ("matching constraint references invalid operand number");
return false;
}
/* Try and find the real constraint for this dup. Only do this
if the matching constraint is the only alternative. */
if (*end == '\0'
&& (j == 0 || (j == 1 && constraint[0] == '%')))
{
constraint = constraints[match];
*constraint_p = constraint;
c_len = strlen (constraint);
j = 0;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* ??? At the end of the loop, we will skip the first part of
the matched constraint. This assumes not only that the
other constraint is an output constraint, but also that
the '=' or '+' come first. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
break;
}
else
j = end - constraint;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Anticipate increment at end of loop. */
j--;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
}
/* Fall through. */
case 'p': case 'r':
*allows_reg = true;
break;
case 'g': case 'X':
*allows_reg = true;
*allows_mem = true;
break;
default:
if (! ISALPHA (constraint[j]))
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("invalid punctuation %qc in constraint", constraint[j]);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return false;
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (REG_CLASS_FROM_CONSTRAINT (constraint[j], constraint + j)
!= NO_REGS)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
*allows_reg = true;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
#ifdef EXTRA_CONSTRAINT_STR
else if (EXTRA_ADDRESS_CONSTRAINT (constraint[j], constraint + j))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
*allows_reg = true;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
else if (EXTRA_MEMORY_CONSTRAINT (constraint[j], constraint + j))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
*allows_mem = true;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else
{
/* Otherwise we can't assume anything about the nature of
the constraint except that it isn't purely registers.
Treat it like "g" and hope for the best. */
*allows_reg = true;
*allows_mem = true;
}
#endif
break;
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (saw_match && !*allows_reg)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
warning (0, "matching constraint does not allow a register");
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return true;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Return DECL iff there's an overlap between *REGS and DECL, where DECL
can be an asm-declared register. Called via walk_tree. */
static tree
decl_overlaps_hard_reg_set_p (tree *declp, int *walk_subtrees ATTRIBUTE_UNUSED,
void *data)
{
tree decl = *declp;
const HARD_REG_SET *regs = data;
if (TREE_CODE (decl) == VAR_DECL)
{
if (DECL_HARD_REGISTER (decl)
&& REG_P (DECL_RTL (decl))
&& REGNO (DECL_RTL (decl)) < FIRST_PSEUDO_REGISTER)
{
rtx reg = DECL_RTL (decl);
unsigned int regno;
for (regno = REGNO (reg);
regno < (REGNO (reg)
+ hard_regno_nregs[REGNO (reg)][GET_MODE (reg)]);
regno++)
if (TEST_HARD_REG_BIT (*regs, regno))
return decl;
}
walk_subtrees = 0;
}
else if (TYPE_P (decl) || TREE_CODE (decl) == PARM_DECL)
walk_subtrees = 0;
return NULL_TREE;
}
/* If there is an overlap between *REGS and DECL, return the first overlap
found. */
tree
tree_overlaps_hard_reg_set (tree decl, HARD_REG_SET *regs)
{
return walk_tree (&decl, decl_overlaps_hard_reg_set_p, regs, NULL);
}
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
/* Check for overlap between registers marked in CLOBBERED_REGS and
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
anything inappropriate in T. Emit error and return the register
variable definition for error, NULL_TREE for ok. */
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
static bool
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree_conflicts_with_clobbers_p (tree t, HARD_REG_SET *clobbered_regs)
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
{
/* Conflicts between asm-declared register variables and the clobber
list are not allowed. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree overlap = tree_overlaps_hard_reg_set (t, clobbered_regs);
if (overlap)
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("asm-specifier for variable %qs conflicts with asm clobber list",
IDENTIFIER_POINTER (DECL_NAME (overlap)));
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Reset registerness to stop multiple errors emitted for a single
variable. */
DECL_REGISTER (overlap) = 0;
return true;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +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
/* Generate RTL for an asm statement with arguments.
STRING is the instruction template.
OUTPUTS is a list of output arguments (lvalues); INPUTS a list of inputs.
Each output or input has an expression in the TREE_VALUE and
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
and a tree list in TREE_PURPOSE which in turn contains a constraint
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
name in TREE_VALUE (or NULL_TREE) and a constraint string
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
in TREE_PURPOSE.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
CLOBBERS is a list of STRING_CST nodes each naming a hard register
that is clobbered by this insn.
Not all kinds of lvalue that may appear in OUTPUTS can be stored directly.
Some elements of OUTPUTS may be replaced with trees representing temporary
values. The caller should copy those temporary values to the originally
specified lvalues.
VOL nonzero means the insn is volatile; don't optimize it. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
static void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_asm_operands (tree string, tree outputs, tree inputs,
tree clobbers, int vol, location_t locus)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtvec argvec, constraintvec;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 body;
int ninputs = list_length (inputs);
int noutputs = list_length (outputs);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int ninout;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 nclobbers;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
HARD_REG_SET clobbered_regs;
int clobber_conflict_found = 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
tree tail;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
tree t;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
/* Vector of RTX's of evaluated output operands. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
rtx *output_rtx = alloca (noutputs * sizeof (rtx));
int *inout_opnum = alloca (noutputs * sizeof (int));
rtx *real_output_rtx = alloca (noutputs * sizeof (rtx));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
enum machine_mode *inout_mode
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
= alloca (noutputs * sizeof (enum machine_mode));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
const char **constraints
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
= alloca ((noutputs + ninputs) * sizeof (const char *));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int old_generating_concat_p = generating_concat_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
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* An ASM with no outputs needs to be treated as volatile, for now. */
if (noutputs == 0)
vol = 1;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! check_operand_nalternatives (outputs, inputs))
return;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
string = resolve_asm_operand_names (string, outputs, inputs);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Collect constraints. */
i = 0;
for (t = outputs; t ; t = TREE_CHAIN (t), i++)
constraints[i] = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (t)));
for (t = inputs; t ; t = TREE_CHAIN (t), i++)
constraints[i] = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (t)));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Sometimes we wish to automatically clobber registers across an asm.
Case in point is when the i386 backend moved from cc0 to a hard reg --
maintaining source-level compatibility means automatically clobbering
the flags register. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
clobbers = targetm.md_asm_clobbers (outputs, inputs, clobbers);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 the number of meaningful clobbered registers, ignoring what
we would ignore later. */
nclobbers = 0;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
CLEAR_HARD_REG_SET (clobbered_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
for (tail = clobbers; tail; tail = TREE_CHAIN (tail))
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
const char *regname;
if (TREE_VALUE (tail) == error_mark_node)
return;
regname = TREE_STRING_POINTER (TREE_VALUE (tail));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
i = decode_reg_name (regname);
if (i >= 0 || i == -4)
++nclobbers;
else if (i == -2)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("unknown register name %qs in %<asm%>", regname);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
/* Mark clobbered registers. */
if (i >= 0)
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Clobbering the PIC register is an error. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (i == (int) PIC_OFFSET_TABLE_REGNUM)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("PIC register %qs clobbered in %<asm%>", regname);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
return;
}
SET_HARD_REG_BIT (clobbered_regs, 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
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* First pass over inputs and outputs checks validity and sets
mark_addressable if needed. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
ninout = 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
for (i = 0, tail = outputs; tail; tail = TREE_CHAIN (tail), i++)
{
tree val = TREE_VALUE (tail);
tree type = TREE_TYPE (val);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
const char *constraint;
bool is_inout;
bool allows_reg;
bool allows_mem;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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's an erroneous arg, emit no insn. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (type == error_mark_node)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Try to parse the output constraint. If that fails, there's
no point in going further. */
constraint = constraints[i];
if (!parse_output_constraint (&constraint, i, ninputs, noutputs,
&allows_mem, &allows_reg, &is_inout))
return;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! allows_reg
&& (allows_mem
|| is_inout
|| (DECL_P (val)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
&& REG_P (DECL_RTL (val))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& GET_MODE (DECL_RTL (val)) != TYPE_MODE (type))))
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
lang_hooks.mark_addressable (val);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (is_inout)
ninout++;
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
ninputs += ninout;
if (ninputs + noutputs > MAX_RECOG_OPERANDS)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("more than %d operands in %<asm%>", MAX_RECOG_OPERANDS);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return;
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
for (i = 0, tail = inputs; tail; i++, tail = TREE_CHAIN (tail))
{
bool allows_reg, allows_mem;
const char *constraint;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If there's an erroneous arg, emit no insn, because the ASM_INPUT
would get VOIDmode and that could cause a crash in reload. */
if (TREE_TYPE (TREE_VALUE (tail)) == error_mark_node)
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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
constraint = constraints[i + noutputs];
if (! parse_input_constraint (&constraint, i, ninputs, noutputs, ninout,
constraints, &allows_mem, &allows_reg))
return;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! allows_reg && allows_mem)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
lang_hooks.mark_addressable (TREE_VALUE (tail));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Second pass evaluates arguments. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
ninout = 0;
for (i = 0, tail = outputs; tail; tail = TREE_CHAIN (tail), i++)
{
tree val = TREE_VALUE (tail);
tree type = TREE_TYPE (val);
bool is_inout;
bool allows_reg;
bool allows_mem;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
rtx op;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
bool ok;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
ok = parse_output_constraint (&constraints[i], i, ninputs,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
noutputs, &allows_mem, &allows_reg,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
&is_inout);
gcc_assert (ok);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 an output operand is not a decl or indirect ref and our constraint
allows a register, make a temporary to act as an intermediate.
Make the asm insn write into that, then our caller will copy it to
the real output operand. Likewise for promoted variables. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
generating_concat_p = 0;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
real_output_rtx[i] = NULL_RTX;
if ((TREE_CODE (val) == INDIRECT_REF
&& allows_mem)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
|| (DECL_P (val)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
&& (allows_mem || REG_P (DECL_RTL (val)))
&& ! (REG_P (DECL_RTL (val))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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_MODE (DECL_RTL (val)) != TYPE_MODE (type)))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
|| ! allows_reg
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
|| is_inout)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
op = expand_expr (val, NULL_RTX, VOIDmode, EXPAND_WRITE);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (MEM_P (op))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
op = validize_mem (op);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (! allows_reg && !MEM_P (op))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
error ("output number %d not directly addressable", i);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if ((! allows_mem && MEM_P (op))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
|| GET_CODE (op) == CONCAT)
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
real_output_rtx[i] = op;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
op = gen_reg_rtx (GET_MODE (op));
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (is_inout)
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
emit_move_insn (op, real_output_rtx[i]);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +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
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
op = assign_temp (type, 0, 0, 1);
op = validize_mem (op);
TREE_VALUE (tail) = make_tree (type, op);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
output_rtx[i] = op;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
generating_concat_p = old_generating_concat_p;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (is_inout)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
inout_mode[ninout] = TYPE_MODE (type);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
inout_opnum[ninout++] = i;
}
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (tree_conflicts_with_clobbers_p (val, &clobbered_regs))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
clobber_conflict_found = 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
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Make vectors for the expression-rtx, constraint strings,
and named operands. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
argvec = rtvec_alloc (ninputs);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
constraintvec = rtvec_alloc (ninputs);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
body = gen_rtx_ASM_OPERANDS ((noutputs == 0 ? VOIDmode
: GET_MODE (output_rtx[0])),
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
ggc_strdup (TREE_STRING_POINTER (string)),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
empty_string, 0, argvec, constraintvec,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
locus);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +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
MEM_VOLATILE_P (body) = vol;
/* Eval the inputs and put them into ARGVEC.
Put their constraints into ASM_INPUTs and store in CONSTRAINTS. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
for (i = 0, tail = inputs; tail; tail = TREE_CHAIN (tail), ++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
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
bool allows_reg, allows_mem;
const char *constraint;
tree val, type;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
rtx op;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
bool ok;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
constraint = constraints[i + noutputs];
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
ok = parse_input_constraint (&constraint, i, ninputs, noutputs, ninout,
constraints, &allows_mem, &allows_reg);
gcc_assert (ok);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
generating_concat_p = 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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
val = TREE_VALUE (tail);
type = TREE_TYPE (val);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* EXPAND_INITIALIZER will not generate code for valid initializer
constants, but will still generate code for other types of operand.
This is the behavior we want for constant constraints. */
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
op = expand_expr (val, NULL_RTX, VOIDmode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
allows_reg ? EXPAND_NORMAL
: allows_mem ? EXPAND_MEMORY
: EXPAND_INITIALIZER);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Never pass a CONCAT to an ASM. */
if (GET_CODE (op) == CONCAT)
op = force_reg (GET_MODE (op), op);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
else if (MEM_P (op))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
op = validize_mem (op);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (asm_operand_ok (op, constraint) <= 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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (allows_reg && TYPE_MODE (type) != BLKmode)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op = force_reg (TYPE_MODE (type), op);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
else if (!allows_mem)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
warning (0, "asm operand %d probably doesn%'t match constraints",
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
i + noutputs);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
else if (MEM_P (op))
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
/* We won't recognize either volatile memory or memory
with a queued address as available a memory_operand
at this point. Ignore it: clearly this *is* a memory. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
}
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
else
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
warning (0, "use of memory input without lvalue in "
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
"asm operand %d is deprecated", i + noutputs);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (CONSTANT_P (op))
{
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
rtx mem = force_const_mem (TYPE_MODE (type), op);
if (mem)
op = validize_mem (mem);
else
op = force_reg (TYPE_MODE (type), op);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (REG_P (op)
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
|| GET_CODE (op) == SUBREG
|| GET_CODE (op) == CONCAT)
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
{
tree qual_type = build_qualified_type (type,
(TYPE_QUALS (type)
| TYPE_QUAL_CONST));
rtx memloc = assign_temp (qual_type, 1, 1, 1);
memloc = validize_mem (memloc);
emit_move_insn (memloc, op);
op = memloc;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
generating_concat_p = old_generating_concat_p;
ASM_OPERANDS_INPUT (body, i) = op;
ASM_OPERANDS_INPUT_CONSTRAINT_EXP (body, i)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
= gen_rtx_ASM_INPUT (TYPE_MODE (type),
ggc_strdup (constraints[i + noutputs]));
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (tree_conflicts_with_clobbers_p (val, &clobbered_regs))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
clobber_conflict_found = 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
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Protect all the operands from the queue now that they have all been
evaluated. */
generating_concat_p = 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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* For in-out operands, copy output rtx to input rtx. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
for (i = 0; i < ninout; i++)
{
int j = inout_opnum[i];
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
char buffer[16];
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
ASM_OPERANDS_INPUT (body, ninputs - ninout + i)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
= output_rtx[j];
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
sprintf (buffer, "%d", j);
ASM_OPERANDS_INPUT_CONSTRAINT_EXP (body, ninputs - ninout + i)
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
= gen_rtx_ASM_INPUT (inout_mode[i], ggc_strdup (buffer));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
generating_concat_p = old_generating_concat_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
/* Now, for each output, construct an rtx
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
(set OUTPUT (asm_operands INSN OUTPUTCONSTRAINT OUTPUTNUMBER
ARGVEC CONSTRAINTS OPNAMES))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 more than one, put them inside a PARALLEL. */
if (noutputs == 1 && nclobbers == 0)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
ASM_OPERANDS_OUTPUT_CONSTRAINT (body) = ggc_strdup (constraints[0]);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_insn (gen_rtx_SET (VOIDmode, output_rtx[0], body));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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 if (noutputs == 0 && nclobbers == 0)
{
/* No output operands: put in a raw ASM_OPERANDS rtx. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_insn (body);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
{
rtx obody = body;
int num = noutputs;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (num == 0)
num = 1;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
body = gen_rtx_PARALLEL (VOIDmode, rtvec_alloc (num + nclobbers));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 each output operand, store a SET. */
for (i = 0, tail = outputs; tail; tail = TREE_CHAIN (tail), i++)
{
XVECEXP (body, 0, i)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
= gen_rtx_SET (VOIDmode,
output_rtx[i],
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
gen_rtx_ASM_OPERANDS
(GET_MODE (output_rtx[i]),
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
ggc_strdup (TREE_STRING_POINTER (string)),
ggc_strdup (constraints[i]),
i, argvec, constraintvec, locus));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
MEM_VOLATILE_P (SET_SRC (XVECEXP (body, 0, i))) = vol;
}
/* If there are no outputs (but there are some clobbers)
store the bare ASM_OPERANDS into the PARALLEL. */
if (i == 0)
XVECEXP (body, 0, i++) = obody;
/* Store (clobber REG) for each clobbered register specified. */
for (tail = clobbers; tail; tail = TREE_CHAIN (tail))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
const char *regname = TREE_STRING_POINTER (TREE_VALUE (tail));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 j = decode_reg_name (regname);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
rtx clobbered_reg;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (j < 0)
{
if (j == -3) /* `cc', which is not a register */
continue;
if (j == -4) /* `memory', don't cache memory across asm */
{
XVECEXP (body, 0, i++)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
= gen_rtx_CLOBBER (VOIDmode,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
gen_rtx_MEM
(BLKmode,
gen_rtx_SCRATCH (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
continue;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Ignore unknown register, error already signaled. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
continue;
}
/* Use QImode since that's guaranteed to clobber just one reg. */
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
clobbered_reg = gen_rtx_REG (QImode, j);
/* Do sanity check for overlap between clobbers and respectively
input and outputs that hasn't been handled. Such overlap
should have been detected and reported above. */
if (!clobber_conflict_found)
{
int opno;
/* We test the old body (obody) contents to avoid tripping
over the under-construction body. */
for (opno = 0; opno < noutputs; opno++)
if (reg_overlap_mentioned_p (clobbered_reg, output_rtx[opno]))
internal_error ("asm clobber conflict with output operand");
for (opno = 0; opno < ninputs - ninout; opno++)
if (reg_overlap_mentioned_p (clobbered_reg,
ASM_OPERANDS_INPUT (obody, opno)))
internal_error ("asm clobber conflict with input 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
XVECEXP (body, 0, i++)
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
= gen_rtx_CLOBBER (VOIDmode, clobbered_reg);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_insn (body);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* For any outputs that needed reloading into registers, spill them
back to where they belong. */
for (i = 0; i < noutputs; ++i)
if (real_output_rtx[i])
emit_move_insn (real_output_rtx[i], output_rtx[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
free_temp_slots ();
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
void
expand_asm_expr (tree exp)
{
int noutputs, i;
tree outputs, tail;
tree *o;
if (ASM_INPUT_P (exp))
{
expand_asm (ASM_STRING (exp), ASM_VOLATILE_P (exp));
return;
}
outputs = ASM_OUTPUTS (exp);
noutputs = list_length (outputs);
/* o[I] is the place that output number I should be written. */
o = (tree *) alloca (noutputs * sizeof (tree));
/* Record the contents of OUTPUTS before it is modified. */
for (i = 0, tail = outputs; tail; tail = TREE_CHAIN (tail), i++)
o[i] = TREE_VALUE (tail);
/* Generate the ASM_OPERANDS insn; store into the TREE_VALUEs of
OUTPUTS some trees for where the values were actually stored. */
expand_asm_operands (ASM_STRING (exp), outputs, ASM_INPUTS (exp),
ASM_CLOBBERS (exp), ASM_VOLATILE_P (exp),
input_location);
/* Copy all the intermediate outputs into the specified outputs. */
for (i = 0, tail = outputs; tail; tail = TREE_CHAIN (tail), i++)
{
if (o[i] != TREE_VALUE (tail))
{
expand_assignment (o[i], TREE_VALUE (tail));
free_temp_slots ();
/* Restore the original value so that it's correct the next
time we expand this function. */
TREE_VALUE (tail) = o[i];
}
}
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* A subroutine of expand_asm_operands. Check that all operands have
the same number of alternatives. Return true if so. */
static bool
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
check_operand_nalternatives (tree outputs, tree inputs)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
if (outputs || inputs)
{
tree tmp = TREE_PURPOSE (outputs ? outputs : inputs);
int nalternatives
= n_occurrences (',', TREE_STRING_POINTER (TREE_VALUE (tmp)));
tree next = inputs;
if (nalternatives + 1 > MAX_RECOG_ALTERNATIVES)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("too many alternatives in %<asm%>");
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return false;
}
tmp = outputs;
while (tmp)
{
const char *constraint
= TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (tmp)));
if (n_occurrences (',', constraint) != nalternatives)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("operand constraints for %<asm%> differ "
"in number of alternatives");
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return false;
}
if (TREE_CHAIN (tmp))
tmp = TREE_CHAIN (tmp);
else
tmp = next, next = 0;
}
}
return true;
}
/* A subroutine of expand_asm_operands. Check that all operand names
are unique. Return true if so. We rely on the fact that these names
are identifiers, and so have been canonicalized by get_identifier,
so all we need are pointer comparisons. */
static bool
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
check_unique_operand_names (tree outputs, tree inputs)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
tree i, j;
for (i = outputs; i ; i = TREE_CHAIN (i))
{
tree i_name = TREE_PURPOSE (TREE_PURPOSE (i));
if (! i_name)
continue;
for (j = TREE_CHAIN (i); j ; j = TREE_CHAIN (j))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (simple_cst_equal (i_name, TREE_PURPOSE (TREE_PURPOSE (j))))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
goto failure;
}
for (i = inputs; i ; i = TREE_CHAIN (i))
{
tree i_name = TREE_PURPOSE (TREE_PURPOSE (i));
if (! i_name)
continue;
for (j = TREE_CHAIN (i); j ; j = TREE_CHAIN (j))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (simple_cst_equal (i_name, TREE_PURPOSE (TREE_PURPOSE (j))))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
goto failure;
for (j = outputs; j ; j = TREE_CHAIN (j))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (simple_cst_equal (i_name, TREE_PURPOSE (TREE_PURPOSE (j))))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
goto failure;
}
return true;
failure:
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("duplicate asm operand name %qs",
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
TREE_STRING_POINTER (TREE_PURPOSE (TREE_PURPOSE (i))));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
return false;
}
/* A subroutine of expand_asm_operands. Resolve the names of the operands
in *POUTPUTS and *PINPUTS to numbers, and replace the name expansions in
STRING and in the constraints to those numbers. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
tree
resolve_asm_operand_names (tree string, tree outputs, tree inputs)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
char *buffer;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
char *p;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
const char *c;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree t;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
check_unique_operand_names (outputs, inputs);
/* Substitute [<name>] in input constraint strings. There should be no
named operands in output constraints. */
for (t = inputs; t ; t = TREE_CHAIN (t))
{
c = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (t)));
if (strchr (c, '[') != NULL)
{
p = buffer = xstrdup (c);
while ((p = strchr (p, '[')) != NULL)
p = resolve_operand_name_1 (p, outputs, inputs);
TREE_VALUE (TREE_PURPOSE (t))
= build_string (strlen (buffer), buffer);
free (buffer);
}
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Now check for any needed substitutions in the template. */
c = TREE_STRING_POINTER (string);
while ((c = strchr (c, '%')) != NULL)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (c[1] == '[')
break;
else if (ISALPHA (c[1]) && c[2] == '[')
break;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else
{
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
c += 1;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
continue;
}
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (c)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* OK, we need to make a copy so we can perform the substitutions.
Assume that we will not need extra space--we get to remove '['
and ']', which means we cannot have a problem until we have more
than 999 operands. */
buffer = xstrdup (TREE_STRING_POINTER (string));
p = buffer + (c - TREE_STRING_POINTER (string));
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
while ((p = strchr (p, '%')) != NULL)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (p[1] == '[')
p += 1;
else if (ISALPHA (p[1]) && p[2] == '[')
p += 2;
else
{
p += 1;
continue;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
p = resolve_operand_name_1 (p, outputs, inputs);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
string = build_string (strlen (buffer), buffer);
free (buffer);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
}
return string;
}
/* A subroutine of resolve_operand_names. P points to the '[' for a
potential named operand of the form [<name>]. In place, replace
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
the name and brackets with a number. Return a pointer to the
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
balance of the string after substitution. */
static char *
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
resolve_operand_name_1 (char *p, tree outputs, tree inputs)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
char *q;
int op;
tree t;
size_t len;
/* Collect the operand name. */
q = strchr (p, ']');
if (!q)
{
error ("missing close brace for named operand");
return strchr (p, '\0');
}
len = q - p - 1;
/* Resolve the name to a number. */
for (op = 0, t = outputs; t ; t = TREE_CHAIN (t), op++)
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
tree name = TREE_PURPOSE (TREE_PURPOSE (t));
if (name)
Gcc 3.1.0 pre-release from the FSF anoncvs repo on 9-May-2002 15:57:15 EDT.
2002-05-09 20:02:13 +00:00
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
const char *c = TREE_STRING_POINTER (name);
Gcc 3.1.0 pre-release from the FSF anoncvs repo on 9-May-2002 15:57:15 EDT.
2002-05-09 20:02:13 +00:00
if (strncmp (c, p + 1, len) == 0 && c[len] == '\0')
goto found;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
}
for (t = inputs; t ; t = TREE_CHAIN (t), op++)
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
tree name = TREE_PURPOSE (TREE_PURPOSE (t));
if (name)
Gcc 3.1.0 pre-release from the FSF anoncvs repo on 9-May-2002 15:57:15 EDT.
2002-05-09 20:02:13 +00:00
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
const char *c = TREE_STRING_POINTER (name);
Gcc 3.1.0 pre-release from the FSF anoncvs repo on 9-May-2002 15:57:15 EDT.
2002-05-09 20:02:13 +00:00
if (strncmp (c, p + 1, len) == 0 && c[len] == '\0')
goto found;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
}
*q = '\0';
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
error ("undefined named operand %qs", p + 1);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
op = 0;
found:
/* Replace the name with the number. Unfortunately, not all libraries
get the return value of sprintf correct, so search for the end of the
generated string by hand. */
sprintf (p, "%d", op);
p = strchr (p, '\0');
/* Verify the no extra buffer space assumption. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (p <= q);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Shift the rest of the buffer down to fill the gap. */
memmove (p, q + 1, strlen (q + 1) + 1);
return p;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Generate RTL to evaluate the expression EXP. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_expr_stmt (tree exp)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx value;
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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
value = expand_expr (exp, const0_rtx, VOIDmode, 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
type = TREE_TYPE (exp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 all we do is reference a volatile value in memory,
copy it to a register to be sure it is actually touched. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (value && MEM_P (value) && TREE_THIS_VOLATILE (exp))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (TYPE_MODE (type) == 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
;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else if (TYPE_MODE (type) != BLKmode)
value = copy_to_reg (value);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
{
rtx lab = gen_label_rtx ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
/* Compare the value with itself to reference it. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (value, value, EQ,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (TYPE_SIZE (type)),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
BLKmode, 0, lab);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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_label (lab);
}
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Free any temporaries used to evaluate this expression. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
free_temp_slots ();
}
/* Warn if EXP contains any computations whose results are not used.
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
Return 1 if a warning is printed; 0 otherwise. LOCUS is the
(potential) location of the expression. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
warn_if_unused_value (tree exp, location_t locus)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
restart:
if (TREE_USED (exp) || TREE_NO_WARNING (exp))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Don't warn about void constructs. This includes casting to void,
void function calls, and statement expressions with a final cast
to void. */
if (VOID_TYPE_P (TREE_TYPE (exp)))
return 0;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (EXPR_HAS_LOCATION (exp))
locus = EXPR_LOCATION (exp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
switch (TREE_CODE (exp))
{
case PREINCREMENT_EXPR:
case POSTINCREMENT_EXPR:
case PREDECREMENT_EXPR:
case POSTDECREMENT_EXPR:
case MODIFY_EXPR:
case INIT_EXPR:
case TARGET_EXPR:
case CALL_EXPR:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case TRY_CATCH_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
case WITH_CLEANUP_EXPR:
case EXIT_EXPR:
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
case VA_ARG_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
return 0;
case BIND_EXPR:
/* For a binding, warn if no side effect within it. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
exp = BIND_EXPR_BODY (exp);
goto restart;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case SAVE_EXPR:
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
exp = TREE_OPERAND (exp, 0);
goto restart;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case TRUTH_ORIF_EXPR:
case TRUTH_ANDIF_EXPR:
/* In && or ||, warn if 2nd operand has no side effect. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
exp = TREE_OPERAND (exp, 1);
goto restart;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case COMPOUND_EXPR:
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (warn_if_unused_value (TREE_OPERAND (exp, 0), locus))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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;
/* Let people do `(foo (), 0)' without a warning. */
if (TREE_CONSTANT (TREE_OPERAND (exp, 1)))
return 0;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
exp = TREE_OPERAND (exp, 1);
goto restart;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
case COND_EXPR:
/* If this is an expression with side effects, don't warn; this
case commonly appears in macro expansions. */
if (TREE_SIDE_EFFECTS (exp))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
goto warn;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case INDIRECT_REF:
/* Don't warn about automatic dereferencing of references, since
the user cannot control it. */
if (TREE_CODE (TREE_TYPE (TREE_OPERAND (exp, 0))) == REFERENCE_TYPE)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
{
exp = TREE_OPERAND (exp, 0);
goto restart;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Fall through. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
default:
/* Referencing a volatile value is a side effect, so don't warn. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if ((DECL_P (exp) || REFERENCE_CLASS_P (exp))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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_THIS_VOLATILE (exp))
return 0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If this is an expression which has no operands, there is no value
to be unused. There are no such language-independent codes,
but front ends may define such. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (EXPRESSION_CLASS_P (exp) && TREE_CODE_LENGTH (TREE_CODE (exp)) == 0)
Gcc 3.1.0 pre-release from the FSF anoncvs repo on 9-May-2002 15:57:15 EDT.
2002-05-09 20:02:13 +00:00
return 0;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
warn:
warning (0, "%Hvalue computed is not used", &locus);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +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
}
/* Generate RTL to return from the current function, with no value.
(That is, we do not do anything about returning any value.) */
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_null_return (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
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* If this function was declared to return a value, but we
didn't, clobber the return registers so that they are not
propagated live to the rest of the function. */
clobber_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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_null_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
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Generate RTL to return directly from the current function.
(That is, we bypass any return value.) */
void
expand_naked_return (void)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
rtx end_label;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
clear_pending_stack_adjust ();
do_pending_stack_adjust ();
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
end_label = naked_return_label;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (end_label == 0)
end_label = naked_return_label = gen_label_rtx ();
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
emit_jump (end_label);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +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
/* Generate RTL to return from the current function, with value VAL. */
static void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_value_return (rtx val)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
/* Copy the value to the return location
unless it's already there. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
rtx return_reg = 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
if (return_reg != val)
{
tree type = TREE_TYPE (DECL_RESULT (current_function_decl));
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (targetm.calls.promote_function_return (TREE_TYPE (current_function_decl)))
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
int unsignedp = TYPE_UNSIGNED (type);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
enum machine_mode old_mode
= DECL_MODE (DECL_RESULT (current_function_decl));
enum machine_mode mode
= promote_mode (type, old_mode, &unsignedp, 1);
if (mode != old_mode)
val = convert_modes (mode, old_mode, val, unsignedp);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (GET_CODE (return_reg) == PARALLEL)
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_group_load (return_reg, val, type, int_size_in_bytes (type));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else
emit_move_insn (return_reg, val);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_null_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
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Output a return with no value. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_null_return_1 (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
{
clear_pending_stack_adjust ();
do_pending_stack_adjust ();
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
emit_jump (return_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
}
/* Generate RTL to evaluate the expression RETVAL and return it
from the current function. */
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_return (tree retval)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
rtx result_rtl;
rtx val = 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
tree retval_rhs;
/* If function wants no value, give it none. */
if (TREE_CODE (TREE_TYPE (TREE_TYPE (current_function_decl))) == VOID_TYPE)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (retval);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
expand_null_return ();
return;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (retval == error_mark_node)
{
/* Treat this like a return of no value from a function that
returns a value. */
expand_null_return ();
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
return;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
else if ((TREE_CODE (retval) == MODIFY_EXPR
|| TREE_CODE (retval) == 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
&& TREE_CODE (TREE_OPERAND (retval, 0)) == RESULT_DECL)
retval_rhs = TREE_OPERAND (retval, 1);
else
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
retval_rhs = retval;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
result_rtl = 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If we are returning the RESULT_DECL, then the value has already
been stored into it, so we don't have to do anything special. */
if (TREE_CODE (retval_rhs) == RESULT_DECL)
expand_value_return (result_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 the result is an aggregate that is being returned in one (or more)
registers, load the registers here. The compiler currently can't handle
copying a BLKmode value into registers. We could put this code in a
more general area (for use by everyone instead of just function
call/return), but until this feature is generally usable it is kept here
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
(and in expand_call). */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
else if (retval_rhs != 0
&& TYPE_MODE (TREE_TYPE (retval_rhs)) == BLKmode
&& REG_P (result_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
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int i;
unsigned HOST_WIDE_INT bitpos, xbitpos;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
unsigned HOST_WIDE_INT padding_correction = 0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned HOST_WIDE_INT bytes
= int_size_in_bytes (TREE_TYPE (retval_rhs));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 n_regs = (bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned int bitsize
= MIN (TYPE_ALIGN (TREE_TYPE (retval_rhs)), BITS_PER_WORD);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
rtx *result_pseudos = alloca (sizeof (rtx) * n_regs);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx result_reg, src = NULL_RTX, dst = NULL_RTX;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
rtx result_val = expand_normal (retval_rhs);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
enum machine_mode tmpmode, result_reg_mode;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (bytes == 0)
{
expand_null_return ();
return;
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* If the structure doesn't take up a whole number of words, see
whether the register value should be padded on the left or on
the right. Set PADDING_CORRECTION to the number of padding
bits needed on the left side.
In most ABIs, the structure will be returned at the least end of
the register, which translates to right padding on little-endian
targets and left padding on big-endian targets. The opposite
holds if the structure is returned at the most significant
end of the register. */
if (bytes % UNITS_PER_WORD != 0
&& (targetm.calls.return_in_msb (TREE_TYPE (retval_rhs))
? !BYTES_BIG_ENDIAN
: BYTES_BIG_ENDIAN))
padding_correction = (BITS_PER_WORD - ((bytes % UNITS_PER_WORD)
* 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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Copy the structure BITSIZE bits at a time. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
for (bitpos = 0, xbitpos = padding_correction;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
bitpos < bytes * BITS_PER_UNIT;
bitpos += bitsize, xbitpos += bitsize)
{
/* We need a new destination pseudo each time xbitpos is
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
on a word boundary and when xbitpos == padding_correction
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 first time through). */
if (xbitpos % BITS_PER_WORD == 0
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
|| xbitpos == padding_correction)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 an appropriate register. */
dst = gen_reg_rtx (word_mode);
result_pseudos[xbitpos / BITS_PER_WORD] = dst;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Clear the destination before we move anything into it. */
emit_move_insn (dst, CONST0_RTX (GET_MODE (dst)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* We need a new source operand each time bitpos is on a word
boundary. */
if (bitpos % BITS_PER_WORD == 0)
src = operand_subword_force (result_val,
bitpos / BITS_PER_WORD,
BLKmode);
/* Use bitpos for the source extraction (left justified) and
xbitpos for the destination store (right justified). */
store_bit_field (dst, bitsize, xbitpos % BITS_PER_WORD, word_mode,
extract_bit_field (src, bitsize,
bitpos % BITS_PER_WORD, 1,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
NULL_RTX, word_mode, word_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
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
tmpmode = GET_MODE (result_rtl);
if (tmpmode == BLKmode)
{
/* Find the smallest integer mode large enough to hold the
entire structure and use that mode instead of BLKmode
on the USE insn for the return register. */
for (tmpmode = GET_CLASS_NARROWEST_MODE (MODE_INT);
tmpmode != VOIDmode;
tmpmode = GET_MODE_WIDER_MODE (tmpmode))
/* Have we found a large enough mode? */
if (GET_MODE_SIZE (tmpmode) >= bytes)
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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* A suitable mode should have been found. */
gcc_assert (tmpmode != 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
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
PUT_MODE (result_rtl, tmpmode);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (GET_MODE_SIZE (tmpmode) < GET_MODE_SIZE (word_mode))
result_reg_mode = word_mode;
else
result_reg_mode = tmpmode;
result_reg = gen_reg_rtx (result_reg_mode);
for (i = 0; i < n_regs; i++)
emit_move_insn (operand_subword (result_reg, i, 0, result_reg_mode),
result_pseudos[i]);
if (tmpmode != result_reg_mode)
result_reg = gen_lowpart (tmpmode, result_reg);
expand_value_return (result_reg);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else if (retval_rhs != 0
&& !VOID_TYPE_P (TREE_TYPE (retval_rhs))
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
&& (REG_P (result_rtl)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
|| (GET_CODE (result_rtl) == 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
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Calculate the return value into a temporary (usually a pseudo
reg). */
tree ot = TREE_TYPE (DECL_RESULT (current_function_decl));
tree nt = build_qualified_type (ot, TYPE_QUALS (ot) | TYPE_QUAL_CONST);
val = assign_temp (nt, 0, 0, 1);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
val = expand_expr (retval_rhs, val, GET_MODE (val), 0);
val = force_not_mem (val);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Return the calculated value. */
expand_value_return (val);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* No hard reg used; calculate value into hard return reg. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
expand_expr (retval, const0_rtx, VOIDmode, 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
expand_value_return (result_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
}
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Given a pointer to a BLOCK node return nonzero if (and only if) the node
in question represents the outermost pair of curly braces (i.e. the "body
block") of a function or method.
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
For any BLOCK node representing a "body block" of a function or method, the
BLOCK_SUPERCONTEXT of the node will point to another BLOCK node which
represents the outermost (function) scope for the function or method (i.e.
the one which includes the formal parameters). The BLOCK_SUPERCONTEXT of
*that* node in turn will point to the relevant FUNCTION_DECL node. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
int
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
is_body_block (tree stmt)
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (lang_hooks.no_body_blocks)
return 0;
if (TREE_CODE (stmt) == 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
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree parent = BLOCK_SUPERCONTEXT (stmt);
if (parent && TREE_CODE (parent) == BLOCK)
{
tree grandparent = BLOCK_SUPERCONTEXT (parent);
if (grandparent && TREE_CODE (grandparent) == FUNCTION_DECL)
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
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* Emit code to restore vital registers at the beginning of a nonlocal goto
handler. */
static void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_nl_goto_receiver (void)
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Clobber the FP when we get here, so we have to make sure it's
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
marked as used by this function. */
emit_insn (gen_rtx_USE (VOIDmode, hard_frame_pointer_rtx));
/* Mark the static chain as clobbered here so life information
doesn't get messed up for it. */
emit_insn (gen_rtx_CLOBBER (VOIDmode, static_chain_rtx));
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
#ifdef HAVE_nonlocal_goto
if (! HAVE_nonlocal_goto)
#endif
/* First adjust our frame pointer to its actual value. It was
previously set to the start of the virtual area corresponding to
the stacked variables when we branched here and now needs to be
adjusted to the actual hardware fp value.
Assignments are to virtual registers are converted by
instantiate_virtual_regs into the corresponding assignment
to the underlying register (fp in this case) that makes
the original assignment true.
So the following insn will actually be
decrementing fp by STARTING_FRAME_OFFSET. */
emit_move_insn (virtual_stack_vars_rtx, hard_frame_pointer_rtx);
#if ARG_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM
if (fixed_regs[ARG_POINTER_REGNUM])
{
#ifdef ELIMINABLE_REGS
/* If the argument pointer can be eliminated in favor of the
frame pointer, we don't need to restore it. We assume here
that if such an elimination is present, it can always be used.
This is the case on all known machines; if we don't make this
assumption, we do unnecessary saving on many machines. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
static const struct elims {const int from, to;} elim_regs[] = ELIMINABLE_REGS;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
size_t i;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
for (i = 0; i < ARRAY_SIZE (elim_regs); i++)
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (elim_regs[i].from == ARG_POINTER_REGNUM
&& elim_regs[i].to == HARD_FRAME_POINTER_REGNUM)
break;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (i == ARRAY_SIZE (elim_regs))
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
#endif
{
/* Now restore our arg pointer from the address at which it
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
was saved in our stack frame. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
emit_move_insn (virtual_incoming_args_rtx,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
copy_to_reg (get_arg_pointer_save_area (cfun)));
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
}
}
#endif
#ifdef HAVE_nonlocal_goto_receiver
if (HAVE_nonlocal_goto_receiver)
emit_insn (gen_nonlocal_goto_receiver ());
#endif
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* @@@ This is a kludge. Not all machine descriptions define a blockage
insn, but we must not allow the code we just generated to be reordered
by scheduling. Specifically, the update of the frame pointer must
happen immediately, not later. So emit an ASM_INPUT to act as blockage
insn. */
emit_insn (gen_rtx_ASM_INPUT (VOIDmode, ""));
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
/* Generate RTL for the automatic variable declaration DECL.
(Other kinds of declarations are simply ignored if seen here.) */
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_decl (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
{
tree type;
type = TREE_TYPE (decl);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* For a CONST_DECL, set mode, alignment, and sizes from those of the
type in case this node is used in a reference. */
if (TREE_CODE (decl) == CONST_DECL)
{
DECL_MODE (decl) = TYPE_MODE (type);
DECL_ALIGN (decl) = TYPE_ALIGN (type);
DECL_SIZE (decl) = TYPE_SIZE (type);
DECL_SIZE_UNIT (decl) = TYPE_SIZE_UNIT (type);
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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Otherwise, only automatic variables need any expansion done. Static and
external variables, and external functions, will be handled by
`assemble_variable' (called from finish_decl). TYPE_DECL requires
nothing. PARM_DECLs are handled in `assign_parms'. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (TREE_CODE (decl) != VAR_DECL)
return;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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 (TREE_STATIC (decl) || DECL_EXTERNAL (decl))
return;
/* Create the RTL representation for the variable. */
if (type == error_mark_node)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
SET_DECL_RTL (decl, gen_rtx_MEM (BLKmode, const0_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 if (DECL_SIZE (decl) == 0)
/* Variable with incomplete type. */
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
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
if (DECL_INITIAL (decl) == 0)
/* Error message was already done; now avoid a crash. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
x = gen_rtx_MEM (BLKmode, const0_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
/* An initializer is going to decide the size of this array.
Until we know the size, represent its address with a reg. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
x = gen_rtx_MEM (BLKmode, gen_reg_rtx (Pmode));
set_mem_attributes (x, decl, 1);
SET_DECL_RTL (decl, 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
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
else if (use_register_for_decl (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
{
/* Automatic variable that can go in a register. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
int unsignedp = TYPE_UNSIGNED (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
enum machine_mode reg_mode
= promote_mode (type, DECL_MODE (decl), &unsignedp, 0);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
SET_DECL_RTL (decl, gen_reg_rtx (reg_mode));
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Note if the object is a user variable. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (!DECL_ARTIFICIAL (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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
mark_user_reg (DECL_RTL (decl));
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Trust user variables which have a pointer type to really
be pointers. Do not trust compiler generated temporaries
as our type system is totally busted as it relates to
pointer arithmetic which translates into lots of compiler
generated objects with pointer types, but which are not really
pointers. */
if (POINTER_TYPE_P (type))
mark_reg_pointer (DECL_RTL (decl),
TYPE_ALIGN (TREE_TYPE (TREE_TYPE (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
}
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
else if (TREE_CODE (DECL_SIZE_UNIT (decl)) == INTEGER_CST
&& ! (flag_stack_check && ! STACK_CHECK_BUILTIN
&& 0 < compare_tree_int (DECL_SIZE_UNIT (decl),
STACK_CHECK_MAX_VAR_SIZE)))
{
/* Variable of fixed size that goes on the stack. */
rtx oldaddr = 0;
rtx addr;
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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If we previously made RTL for this decl, it must be an array
whose size was determined by the initializer.
The old address was a register; set that register now
to the proper address. */
if (DECL_RTL_SET_P (decl))
{
gcc_assert (MEM_P (DECL_RTL (decl)));
gcc_assert (REG_P (XEXP (DECL_RTL (decl), 0)));
oldaddr = XEXP (DECL_RTL (decl), 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Set alignment we actually gave this decl. */
DECL_ALIGN (decl) = (DECL_MODE (decl) == BLKmode ? BIGGEST_ALIGNMENT
: GET_MODE_BITSIZE (DECL_MODE (decl)));
DECL_USER_ALIGN (decl) = 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
x = assign_temp (decl, 1, 1, 1);
set_mem_attributes (x, decl, 1);
SET_DECL_RTL (decl, x);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (oldaddr)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
addr = force_operand (XEXP (DECL_RTL (decl), 0), oldaddr);
if (addr != oldaddr)
emit_move_insn (oldaddr, addr);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
}
else
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Dynamic-size object: must push space on the stack. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
rtx address, size, x;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Record the stack pointer on entry to block, if have
not already done so. */
do_pending_stack_adjust ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Compute the variable's size, in bytes. This will expand any
needed SAVE_EXPRs for the first time. */
size = expand_normal (DECL_SIZE_UNIT (decl));
free_temp_slots ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Allocate space on the stack for the variable. Note that
DECL_ALIGN says how the variable is to be aligned and we
cannot use it to conclude anything about the alignment of
the size. */
address = allocate_dynamic_stack_space (size, NULL_RTX,
TYPE_ALIGN (TREE_TYPE (decl)));
/* Reference the variable indirect through that rtx. */
x = gen_rtx_MEM (DECL_MODE (decl), address);
set_mem_attributes (x, decl, 1);
SET_DECL_RTL (decl, x);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Indicate the alignment we actually gave this variable. */
#ifdef STACK_BOUNDARY
DECL_ALIGN (decl) = STACK_BOUNDARY;
#else
DECL_ALIGN (decl) = BIGGEST_ALIGNMENT;
#endif
DECL_USER_ALIGN (decl) = 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
}
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Emit code to save the current value of stack. */
rtx
expand_stack_save (void)
{
rtx ret = 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
do_pending_stack_adjust ();
emit_stack_save (SAVE_BLOCK, &ret, NULL_RTX);
return 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Emit code to restore the current value of 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
void
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_stack_restore (tree 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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
rtx sa = DECL_RTL (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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
emit_stack_restore (SAVE_BLOCK, sa, NULL_RTX);
}
/* DECL is an anonymous union. CLEANUP is a cleanup for DECL.
DECL_ELTS is the list of elements that belong to DECL's type.
In each, the TREE_VALUE is a VAR_DECL, and the TREE_PURPOSE a cleanup. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
void
expand_anon_union_decl (tree decl, tree cleanup ATTRIBUTE_UNUSED,
tree decl_elts)
{
rtx x;
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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If any of the elements are addressable, so is the entire union. */
for (t = decl_elts; t; t = TREE_CHAIN (t))
if (TREE_ADDRESSABLE (TREE_VALUE (t)))
{
TREE_ADDRESSABLE (decl) = 1;
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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_decl (decl);
x = 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Go through the elements, assigning RTL to each. */
for (t = decl_elts; t; t = TREE_CHAIN (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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree decl_elt = TREE_VALUE (t);
enum machine_mode mode = TYPE_MODE (TREE_TYPE (decl_elt));
rtx 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If any of the elements are addressable, so is the entire
union. */
if (TREE_USED (decl_elt))
TREE_USED (decl) = 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Propagate the union's alignment to the elements. */
DECL_ALIGN (decl_elt) = DECL_ALIGN (decl);
DECL_USER_ALIGN (decl_elt) = DECL_USER_ALIGN (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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If the element has BLKmode and the union doesn't, the union is
aligned such that the element doesn't need to have BLKmode, so
change the element's mode to the appropriate one for its size. */
if (mode == BLKmode && DECL_MODE (decl) != BLKmode)
DECL_MODE (decl_elt) = mode
= mode_for_size_tree (DECL_SIZE (decl_elt), MODE_INT, 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (mode == GET_MODE (x))
decl_rtl = x;
else if (MEM_P (x))
/* (SUBREG (MEM ...)) at RTL generation time is invalid, so we
instead create a new MEM rtx with the proper mode. */
decl_rtl = adjust_address_nv (x, mode, 0);
else
{
gcc_assert (REG_P (x));
decl_rtl = gen_lowpart_SUBREG (mode, x);
}
SET_DECL_RTL (decl_elt, 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
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
}
/* Do the insertion of a case label into case_list. The labels are
fed to us in descending order from the sorted vector of case labels used
in the tree part of the middle end. So the list we construct is
sorted in ascending order. The bounds on the case range, LOW and HIGH,
are converted to case's index type TYPE. */
static struct case_node *
add_case_node (struct case_node *head, tree type, tree low, tree high,
tree label)
{
tree min_value, max_value;
struct case_node *r;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (TREE_CODE (low) == INTEGER_CST);
gcc_assert (!high || TREE_CODE (high) == INTEGER_CST);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
min_value = TYPE_MIN_VALUE (type);
max_value = TYPE_MAX_VALUE (type);
/* If there's no HIGH value, then this is not a case range; it's
just a simple case label. But that's just a degenerate case
range.
If the bounds are equal, turn this into the one-value case. */
if (!high || tree_int_cst_equal (low, high))
{
/* If the simple case value is unreachable, ignore it. */
if ((TREE_CODE (min_value) == INTEGER_CST
&& tree_int_cst_compare (low, min_value) < 0)
|| (TREE_CODE (max_value) == INTEGER_CST
&& tree_int_cst_compare (low, max_value) > 0))
return head;
low = fold_convert (type, low);
high = low;
}
else
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If the entire case range is unreachable, ignore it. */
if ((TREE_CODE (min_value) == INTEGER_CST
&& tree_int_cst_compare (high, min_value) < 0)
|| (TREE_CODE (max_value) == INTEGER_CST
&& tree_int_cst_compare (low, max_value) > 0))
return head;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If the lower bound is less than the index type's minimum
value, truncate the range bounds. */
if (TREE_CODE (min_value) == INTEGER_CST
&& tree_int_cst_compare (low, min_value) < 0)
low = min_value;
low = fold_convert (type, low);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If the upper bound is greater than the index type's maximum
value, truncate the range bounds. */
if (TREE_CODE (max_value) == INTEGER_CST
&& tree_int_cst_compare (high, max_value) > 0)
high = max_value;
high = fold_convert (type, high);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Add this label to the chain. Make sure to drop overflow flags. */
r = ggc_alloc (sizeof (struct case_node));
r->low = build_int_cst_wide (TREE_TYPE (low), TREE_INT_CST_LOW (low),
TREE_INT_CST_HIGH (low));
r->high = build_int_cst_wide (TREE_TYPE (high), TREE_INT_CST_LOW (high),
TREE_INT_CST_HIGH (high));
r->code_label = label;
r->parent = r->left = NULL;
r->right = head;
return r;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Maximum number of case bit tests. */
#define MAX_CASE_BIT_TESTS 3
/* By default, enable case bit tests on targets with ashlsi3. */
#ifndef CASE_USE_BIT_TESTS
#define CASE_USE_BIT_TESTS (ashl_optab->handlers[word_mode].insn_code \
!= CODE_FOR_nothing)
#endif
/* A case_bit_test represents a set of case nodes that may be
selected from using a bit-wise comparison. HI and LO hold
the integer to be tested against, LABEL contains the label
to jump to upon success and BITS counts the number of case
nodes handled by this test, typically the number of bits
set in HI:LO. */
struct case_bit_test
{
HOST_WIDE_INT hi;
HOST_WIDE_INT lo;
rtx label;
int bits;
};
/* Determine whether "1 << x" is relatively cheap in word_mode. */
static
bool lshift_cheap_p (void)
{
static bool init = false;
static bool cheap = true;
if (!init)
{
rtx reg = gen_rtx_REG (word_mode, 10000);
int cost = rtx_cost (gen_rtx_ASHIFT (word_mode, const1_rtx, reg), SET);
cheap = cost < COSTS_N_INSNS (3);
init = true;
}
return cheap;
}
/* Comparison function for qsort to order bit tests by decreasing
number of case nodes, i.e. the node with the most cases gets
tested first. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
static int
case_bit_test_cmp (const void *p1, const void *p2)
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
{
const struct case_bit_test *d1 = p1;
const struct case_bit_test *d2 = p2;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (d2->bits != d1->bits)
return d2->bits - d1->bits;
/* Stabilize the sort. */
return CODE_LABEL_NUMBER (d2->label) - CODE_LABEL_NUMBER (d1->label);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
}
/* Expand a switch statement by a short sequence of bit-wise
comparisons. "switch(x)" is effectively converted into
"if ((1 << (x-MINVAL)) & CST)" where CST and MINVAL are
integer constants.
INDEX_EXPR is the value being switched on, which is of
type INDEX_TYPE. MINVAL is the lowest case value of in
the case nodes, of INDEX_TYPE type, and RANGE is highest
value minus MINVAL, also of type INDEX_TYPE. NODES is
the set of case nodes, and DEFAULT_LABEL is the label to
branch to should none of the cases match.
There *MUST* be MAX_CASE_BIT_TESTS or less unique case
node targets. */
static void
emit_case_bit_tests (tree index_type, tree index_expr, tree minval,
tree range, case_node_ptr nodes, rtx default_label)
{
struct case_bit_test test[MAX_CASE_BIT_TESTS];
enum machine_mode mode;
rtx expr, index, label;
unsigned int i,j,lo,hi;
struct case_node *n;
unsigned int count;
count = 0;
for (n = nodes; n; n = n->right)
{
label = label_rtx (n->code_label);
for (i = 0; i < count; i++)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (label == test[i].label)
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
break;
if (i == count)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (count < MAX_CASE_BIT_TESTS);
test[i].hi = 0;
test[i].lo = 0;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
test[i].label = label;
test[i].bits = 1;
count++;
}
else
test[i].bits++;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
lo = tree_low_cst (fold_build2 (MINUS_EXPR, index_type,
n->low, minval), 1);
hi = tree_low_cst (fold_build2 (MINUS_EXPR, index_type,
n->high, minval), 1);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
for (j = lo; j <= hi; j++)
if (j >= HOST_BITS_PER_WIDE_INT)
test[i].hi |= (HOST_WIDE_INT) 1 << (j - HOST_BITS_PER_INT);
else
test[i].lo |= (HOST_WIDE_INT) 1 << j;
}
qsort (test, count, sizeof(*test), case_bit_test_cmp);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
index_expr = fold_build2 (MINUS_EXPR, index_type,
fold_convert (index_type, index_expr),
fold_convert (index_type, minval));
index = expand_normal (index_expr);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
do_pending_stack_adjust ();
mode = TYPE_MODE (index_type);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expr = expand_normal (range);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_cmp_and_jump_insns (index, expr, GTU, NULL_RTX, mode, 1,
default_label);
index = convert_to_mode (word_mode, index, 0);
index = expand_binop (word_mode, ashl_optab, const1_rtx,
index, NULL_RTX, 1, OPTAB_WIDEN);
for (i = 0; i < count; i++)
{
expr = immed_double_const (test[i].lo, test[i].hi, word_mode);
expr = expand_binop (word_mode, and_optab, index, expr,
NULL_RTX, 1, OPTAB_WIDEN);
emit_cmp_and_jump_insns (expr, const0_rtx, NE, NULL_RTX,
word_mode, 1, test[i].label);
}
emit_jump (default_label);
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
#ifndef HAVE_casesi
#define HAVE_casesi 0
#endif
#ifndef HAVE_tablejump
#define HAVE_tablejump 0
#endif
/* Terminate a case (Pascal/Ada) or switch (C) 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
in which ORIG_INDEX is the expression to be tested.
Gcc 3.1.0 pre-release from the FSF anoncvs repo on 9-May-2002 15:57:15 EDT.
2002-05-09 20:02:13 +00:00
If ORIG_TYPE is not NULL, it is the original ORIG_INDEX
type as given in the source before any compiler 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
Generate the code to test it and jump to the right place. */
void
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_case (tree exp)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree minval = NULL_TREE, maxval = NULL_TREE, range = 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
rtx default_label = 0;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
struct case_node *n;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
unsigned int count, uniq;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 index;
rtx table_label;
int ncases;
rtx *labelvec;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
int i, fail;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
rtx before_case, end, lab;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree vec = SWITCH_LABELS (exp);
tree orig_type = TREE_TYPE (exp);
tree index_expr = SWITCH_COND (exp);
tree index_type = TREE_TYPE (index_expr);
int unsignedp = TYPE_UNSIGNED (index_type);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* The insn after which the case dispatch should finally
be emitted. Zero for a dummy. */
rtx start;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* A list of case labels; it is first built as a list and it may then
be rearranged into a nearly balanced binary tree. */
struct case_node *case_list = 0;
/* Label to jump to if no case matches. */
tree default_label_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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* The switch body is lowered in gimplify.c, we should never have
switches with a non-NULL SWITCH_BODY here. */
gcc_assert (!SWITCH_BODY (exp));
gcc_assert (SWITCH_LABELS (exp));
do_pending_stack_adjust ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +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
/* An ERROR_MARK occurs for various reasons including invalid data type. */
if (index_type != error_mark_node)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree elt;
bitmap label_bitmap;
/* cleanup_tree_cfg removes all SWITCH_EXPR with their index
expressions being INTEGER_CST. */
gcc_assert (TREE_CODE (index_expr) != INTEGER_CST);
/* The default case is at the end of TREE_VEC. */
elt = TREE_VEC_ELT (vec, TREE_VEC_LENGTH (vec) - 1);
gcc_assert (!CASE_HIGH (elt));
gcc_assert (!CASE_LOW (elt));
default_label_decl = CASE_LABEL (elt);
for (i = TREE_VEC_LENGTH (vec) - 1; --i >= 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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree low, high;
elt = TREE_VEC_ELT (vec, i);
low = CASE_LOW (elt);
gcc_assert (low);
high = CASE_HIGH (elt);
/* Discard empty ranges. */
if (high && INT_CST_LT (high, low))
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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
case_list = add_case_node (case_list, index_type, low, high,
CASE_LABEL (elt));
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
before_case = start = get_last_insn ();
default_label = label_rtx (default_label_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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Get upper and lower bounds of case values. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
uniq = 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
count = 0;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
label_bitmap = BITMAP_ALLOC (NULL);
for (n = case_list; n; n = n->right)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 the elements and track the largest and smallest
of them (treating them as signed even if they are not). */
if (count++ == 0)
{
minval = n->low;
maxval = n->high;
}
else
{
if (INT_CST_LT (n->low, minval))
minval = n->low;
if (INT_CST_LT (maxval, n->high))
maxval = n->high;
}
/* A range counts double, since it requires two compares. */
if (! tree_int_cst_equal (n->low, n->high))
count++;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If we have not seen this label yet, then increase the
number of unique case node targets seen. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
lab = label_rtx (n->code_label);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!bitmap_bit_p (label_bitmap, CODE_LABEL_NUMBER (lab)))
{
bitmap_set_bit (label_bitmap, CODE_LABEL_NUMBER (lab));
uniq++;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
BITMAP_FREE (label_bitmap);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* cleanup_tree_cfg removes all SWITCH_EXPR with a single
destination, such as one with a default case only. However,
it doesn't remove cases that are out of range for the switch
type, so we may still get a zero 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
if (count == 0)
{
emit_jump (default_label);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
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
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Compute span of values. */
range = fold_build2 (MINUS_EXPR, index_type, maxval, minval);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Try implementing this switch statement by a short sequence of
bit-wise comparisons. However, we let the binary-tree case
below handle constant index expressions. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (CASE_USE_BIT_TESTS
&& ! TREE_CONSTANT (index_expr)
&& compare_tree_int (range, GET_MODE_BITSIZE (word_mode)) < 0
&& compare_tree_int (range, 0) > 0
&& lshift_cheap_p ()
&& ((uniq == 1 && count >= 3)
|| (uniq == 2 && count >= 5)
|| (uniq == 3 && count >= 6)))
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
{
/* Optimize the case where all the case values fit in a
word without having to subtract MINVAL. In this case,
we can optimize away the subtraction. */
if (compare_tree_int (minval, 0) > 0
&& compare_tree_int (maxval, GET_MODE_BITSIZE (word_mode)) < 0)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
minval = build_int_cst (index_type, 0);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
range = maxval;
}
emit_case_bit_tests (index_type, index_expr, minval, range,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
case_list, default_label);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +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 range of values is much bigger than number of values,
make a sequence of conditional branches instead of a dispatch.
If the switch-index is a constant, do it this way
because we can optimize it. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else if (count < case_values_threshold ()
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
|| compare_tree_int (range,
(optimize_size ? 3 : 10) * count) > 0
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* RANGE may be signed, and really large ranges will show up
as negative numbers. */
|| compare_tree_int (range, 0) < 0
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifndef ASM_OUTPUT_ADDR_DIFF_ELT
|| flag_pic
#endif
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
|| !flag_jump_tables
|| TREE_CONSTANT (index_expr)
/* If neither casesi or tablejump is available, we can
only go this way. */
|| (!HAVE_casesi && !HAVE_tablejump))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
index = expand_normal (index_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
/* If the index is a short or char that we do not have
an insn to handle comparisons directly, convert it to
a full integer now, rather than letting each comparison
generate the conversion. */
if (GET_MODE_CLASS (GET_MODE (index)) == MODE_INT
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
&& ! have_insn_for (COMPARE, GET_MODE (index)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
enum machine_mode wider_mode;
for (wider_mode = GET_MODE (index); wider_mode != VOIDmode;
wider_mode = GET_MODE_WIDER_MODE (wider_mode))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (have_insn_for (COMPARE, 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
{
index = convert_to_mode (wider_mode, index, unsignedp);
break;
}
}
do_pending_stack_adjust ();
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (MEM_P (index))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
index = copy_to_reg (index);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* We generate a binary decision tree to select the
appropriate target code. This is done as follows:
The list of cases is rearranged into a binary tree,
nearly optimal assuming equal probability for each case.
The tree is transformed into RTL, eliminating
redundant test conditions at the same time.
If program flow could reach the end of the
decision tree an unconditional jump to the
default code is emitted. */
use_cost_table
= (TREE_CODE (orig_type) != ENUMERAL_TYPE
&& estimate_case_costs (case_list));
balance_case_nodes (&case_list, NULL);
emit_case_nodes (index, case_list, default_label, index_type);
emit_jump (default_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
}
else
{
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
table_label = gen_label_rtx ();
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! try_casesi (index_type, index_expr, minval, range,
table_label, default_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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
bool ok;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
/* Index jumptables from zero for suitable values of
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
minval to avoid a subtraction. */
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (! optimize_size
&& compare_tree_int (minval, 0) > 0
&& compare_tree_int (minval, 3) < 0)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
minval = build_int_cst (index_type, 0);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
range = maxval;
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
ok = try_tablejump (index_type, index_expr, minval, range,
table_label, default_label);
gcc_assert (ok);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +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
/* Get table of labels to jump to, in order of case index. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
ncases = tree_low_cst (range, 0) + 1;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
labelvec = alloca (ncases * sizeof (rtx));
memset (labelvec, 0, ncases * sizeof (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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
for (n = case_list; n; n = n->right)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Compute the low and high bounds relative to the minimum
value since that should fit in a HOST_WIDE_INT while the
actual values may not. */
HOST_WIDE_INT i_low
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
= tree_low_cst (fold_build2 (MINUS_EXPR, index_type,
n->low, minval), 1);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
HOST_WIDE_INT i_high
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
= tree_low_cst (fold_build2 (MINUS_EXPR, index_type,
n->high, minval), 1);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
HOST_WIDE_INT i;
for (i = i_low; i <= i_high; i ++)
labelvec[i]
= gen_rtx_LABEL_REF (Pmode, label_rtx (n->code_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
}
/* Fill in the gaps with the default. */
for (i = 0; i < ncases; i++)
if (labelvec[i] == 0)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
labelvec[i] = gen_rtx_LABEL_REF (Pmode, default_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
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Output the table. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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_label (table_label);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (CASE_VECTOR_PC_RELATIVE || flag_pic)
emit_jump_insn (gen_rtx_ADDR_DIFF_VEC (CASE_VECTOR_MODE,
gen_rtx_LABEL_REF (Pmode, table_label),
gen_rtvec_v (ncases, labelvec),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
const0_rtx, const0_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
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_jump_insn (gen_rtx_ADDR_VEC (CASE_VECTOR_MODE,
gen_rtvec_v (ncases, labelvec)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Record no drop-through after the table. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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_barrier ();
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
before_case = NEXT_INSN (before_case);
end = get_last_insn ();
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
fail = squeeze_notes (&before_case, &end);
gcc_assert (!fail);
reorder_insns (before_case, end, start);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
free_temp_slots ();
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Generate code to jump to LABEL if OP0 and OP1 are equal in mode 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
static void
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
do_jump_if_equal (enum machine_mode mode, rtx op0, rtx op1, rtx label,
int 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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
do_compare_rtx_and_jump (op0, op1, EQ, unsignedp, mode,
NULL_RTX, NULL_RTX, 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
}
/* Not all case values are encountered equally. This function
uses a heuristic to weight case labels, in cases where that
looks like a reasonable thing to do.
Right now, all we try to guess is text, and we establish the
following weights:
chars above space: 16
digits: 16
default: 12
space, punct: 8
tab: 4
newline: 2
other "\" chars: 1
remaining chars: 0
If we find any cases in the switch that are not either -1 or in the range
of valid ASCII characters, or are control characters other than those
commonly used with "\", don't treat this switch scanning text.
Return 1 if these nodes are suitable for cost estimation, otherwise
return 0. */
static int
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
estimate_case_costs (case_node_ptr node)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree min_ascii = integer_minus_one_node;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree max_ascii = build_int_cst (TREE_TYPE (node->high), 127);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case_node_ptr n;
int i;
/* If we haven't already made the cost table, make it now. Note that the
lower bound of the table is -1, not zero. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (! cost_table_initialized)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
cost_table_initialized = 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
for (i = 0; i < 128; i++)
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (ISALNUM (i))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
COST_TABLE (i) = 16;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (ISPUNCT (i))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
COST_TABLE (i) = 8;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else if (ISCNTRL (i))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
COST_TABLE (i) = -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
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
COST_TABLE (' ') = 8;
COST_TABLE ('\t') = 4;
COST_TABLE ('\0') = 4;
COST_TABLE ('\n') = 2;
COST_TABLE ('\f') = 1;
COST_TABLE ('\v') = 1;
COST_TABLE ('\b') = 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
}
/* See if all the case expressions look like text. It is text if the
constant is >= -1 and the highest constant is <= 127. Do all comparisons
as signed arithmetic since we don't want to ever access cost_table with a
value less than -1. Also check that none of the constants in a range
are strange control characters. */
for (n = node; n; n = n->right)
{
if ((INT_CST_LT (n->low, min_ascii)) || INT_CST_LT (max_ascii, n->high))
return 0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
for (i = (HOST_WIDE_INT) TREE_INT_CST_LOW (n->low);
i <= (HOST_WIDE_INT) TREE_INT_CST_LOW (n->high); i++)
if (COST_TABLE (i) < 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 0;
}
/* All interesting values are within the range of interesting
ASCII characters. */
return 1;
}
/* Take an ordered list of case nodes
and transform them into a near optimal binary tree,
on the assumption that any target code selection value is as
likely as any other.
The transformation is performed by splitting the ordered
list into two equal sections plus a pivot. The parts are
then attached to the pivot as left and right branches. Each
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
branch is then transformed recursively. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
balance_case_nodes (case_node_ptr *head, case_node_ptr parent)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case_node_ptr np;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
np = *head;
if (np)
{
int cost = 0;
int i = 0;
int ranges = 0;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case_node_ptr *npp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
case_node_ptr left;
/* Count the number of entries on branch. Also count the ranges. */
while (np)
{
if (!tree_int_cst_equal (np->low, np->high))
{
ranges++;
if (use_cost_table)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
cost += COST_TABLE (TREE_INT_CST_LOW (np->high));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (use_cost_table)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
cost += COST_TABLE (TREE_INT_CST_LOW (np->low));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
i++;
np = np->right;
}
if (i > 2)
{
/* Split this list if it is long enough for that to help. */
npp = head;
left = *npp;
if (use_cost_table)
{
/* Find the place in the list that bisects the list's total cost,
Here I gets half the total cost. */
int n_moved = 0;
i = (cost + 1) / 2;
while (1)
{
/* Skip nodes while their cost does not reach that amount. */
if (!tree_int_cst_equal ((*npp)->low, (*npp)->high))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
i -= COST_TABLE (TREE_INT_CST_LOW ((*npp)->high));
i -= COST_TABLE (TREE_INT_CST_LOW ((*npp)->low));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (i <= 0)
break;
npp = &(*npp)->right;
n_moved += 1;
}
if (n_moved == 0)
{
/* Leave this branch lopsided, but optimize left-hand
side and fill in `parent' fields for right-hand side. */
np = *head;
np->parent = parent;
balance_case_nodes (&np->left, np);
for (; np->right; np = np->right)
np->right->parent = np;
return;
}
}
/* If there are just three nodes, split at the middle one. */
else if (i == 3)
npp = &(*npp)->right;
else
{
/* Find the place in the list that bisects the list's total cost,
where ranges count as 2.
Here I gets half the total cost. */
i = (i + ranges + 1) / 2;
while (1)
{
/* Skip nodes while their cost does not reach that amount. */
if (!tree_int_cst_equal ((*npp)->low, (*npp)->high))
i--;
i--;
if (i <= 0)
break;
npp = &(*npp)->right;
}
}
*head = np = *npp;
*npp = 0;
np->parent = parent;
np->left = left;
/* Optimize each of the two split parts. */
balance_case_nodes (&np->left, np);
balance_case_nodes (&np->right, np);
}
else
{
/* Else leave this branch as one level,
but fill in `parent' fields. */
np = *head;
np->parent = parent;
for (; np->right; np = np->right)
np->right->parent = np;
}
}
}
/* Search the parent sections of the case node tree
to see if a test for the lower bound of NODE would be redundant.
INDEX_TYPE is the type of the index expression.
The instructions to generate the case decision tree are
output in the same order as nodes are processed so it is
known that if a parent node checks the range of the current
node minus one that the current node is bounded at its lower
span. Thus the test would be redundant. */
static int
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
node_has_low_bound (case_node_ptr node, tree index_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
{
tree low_minus_one;
case_node_ptr pnode;
/* If the lower bound of this node is the lowest value in the index type,
we need not test it. */
if (tree_int_cst_equal (node->low, TYPE_MIN_VALUE (index_type)))
return 1;
/* If this node has a left branch, the value at the left must be less
than that at this node, so it cannot be bounded at the bottom and
we need not bother testing any further. */
if (node->left)
return 0;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
low_minus_one = fold_build2 (MINUS_EXPR, TREE_TYPE (node->low),
node->low,
build_int_cst (TREE_TYPE (node->low), 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 the subtraction above overflowed, we can't verify anything.
Otherwise, look for a parent that tests our value - 1. */
if (! tree_int_cst_lt (low_minus_one, node->low))
return 0;
for (pnode = node->parent; pnode; pnode = pnode->parent)
if (tree_int_cst_equal (low_minus_one, pnode->high))
return 1;
return 0;
}
/* Search the parent sections of the case node tree
to see if a test for the upper bound of NODE would be redundant.
INDEX_TYPE is the type of the index expression.
The instructions to generate the case decision tree are
output in the same order as nodes are processed so it is
known that if a parent node checks the range of the current
node plus one that the current node is bounded at its upper
span. Thus the test would be redundant. */
static int
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
node_has_high_bound (case_node_ptr node, tree index_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
{
tree high_plus_one;
case_node_ptr pnode;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If there is no upper bound, obviously no test is needed. */
if (TYPE_MAX_VALUE (index_type) == NULL)
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 the upper bound of this node is the highest value in the type
of the index expression, we need not test against it. */
if (tree_int_cst_equal (node->high, TYPE_MAX_VALUE (index_type)))
return 1;
/* If this node has a right branch, the value at the right must be greater
than that at this node, so it cannot be bounded at the top and
we need not bother testing any further. */
if (node->right)
return 0;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
high_plus_one = fold_build2 (PLUS_EXPR, TREE_TYPE (node->high),
node->high,
build_int_cst (TREE_TYPE (node->high), 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 the addition above overflowed, we can't verify anything.
Otherwise, look for a parent that tests our value + 1. */
if (! tree_int_cst_lt (node->high, high_plus_one))
return 0;
for (pnode = node->parent; pnode; pnode = pnode->parent)
if (tree_int_cst_equal (high_plus_one, pnode->low))
return 1;
return 0;
}
/* Search the parent sections of the
case node tree to see if both tests for the upper and lower
bounds of NODE would be redundant. */
static int
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
node_is_bounded (case_node_ptr node, tree index_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
{
return (node_has_low_bound (node, index_type)
&& node_has_high_bound (node, index_type));
}
/* Emit step-by-step code to select a case for the value of INDEX.
The thus generated decision tree follows the form of the
case-node binary tree NODE, whose nodes represent test conditions.
INDEX_TYPE is the type of the index of the switch.
Care is taken to prune redundant tests from the decision tree
by detecting any boundary conditions already checked by
emitted rtx. (See node_has_high_bound, node_has_low_bound
and node_is_bounded, above.)
Where the test conditions can be shown to be redundant we emit
an unconditional jump to the target code. As a further
optimization, the subordinates of a tree node are examined to
check for bounded nodes. In this case conditional and/or
unconditional jumps as a result of the boundary check for the
current node are arranged to target the subordinates associated
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
code for out of bound conditions on the current node.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We can assume that when control reaches the code generated here,
the index value has already been compared with the parents
of this node, and determined to be on the same side of each parent
as this node is. Thus, if this node tests for the value 51,
and a parent tested for 52, we don't need to consider
the possibility of a value greater than 51. If another parent
tests for the value 50, then this node need not test anything. */
static void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_case_nodes (rtx index, case_node_ptr node, rtx default_label,
tree index_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 INDEX has an unsigned type, we must make unsigned branches. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
int unsignedp = TYPE_UNSIGNED (index_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
enum machine_mode mode = GET_MODE (index);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
enum machine_mode imode = TYPE_MODE (index_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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Handle indices detected as constant during RTL expansion. */
if (mode == VOIDmode)
mode = imode;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* See if our parents have already tested everything for us.
If they have, emit an unconditional jump for this node. */
if (node_is_bounded (node, index_type))
emit_jump (label_rtx (node->code_label));
else if (tree_int_cst_equal (node->low, node->high))
{
/* Node is single valued. First see if the index expression matches
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
this node and then check our children, if any. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
do_jump_if_equal (mode, index,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
convert_modes (mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->low),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
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
label_rtx (node->code_label), unsignedp);
if (node->right != 0 && node->left != 0)
{
/* This node has children on both sides.
Dispatch to one side or the other
by comparing the index value with this node's value.
If one subtree is bounded, check that one first,
so we can avoid real branches in the tree. */
if (node_is_bounded (node->right, index_type))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->high),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
GT, NULL_RTX, mode, unsignedp,
label_rtx (node->right->code_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
emit_case_nodes (index, node->left, default_label, index_type);
}
else if (node_is_bounded (node->left, index_type))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->high),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
LT, NULL_RTX, mode, unsignedp,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
label_rtx (node->left->code_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
emit_case_nodes (index, node->right, default_label, index_type);
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If both children are single-valued cases with no
children, finish up all the work. This way, we can save
one ordered comparison. */
else if (tree_int_cst_equal (node->right->low, node->right->high)
&& node->right->left == 0
&& node->right->right == 0
&& tree_int_cst_equal (node->left->low, node->left->high)
&& node->left->left == 0
&& node->left->right == 0)
{
/* Neither node is bounded. First distinguish the two sides;
then emit the code for one side at a time. */
/* See if the value matches what the right hand side
wants. */
do_jump_if_equal (mode, index,
convert_modes (mode, imode,
expand_normal (node->right->low),
unsignedp),
label_rtx (node->right->code_label),
unsignedp);
/* See if the value matches what the left hand side
wants. */
do_jump_if_equal (mode, index,
convert_modes (mode, imode,
expand_normal (node->left->low),
unsignedp),
label_rtx (node->left->code_label),
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
else
{
/* Neither node is bounded. First distinguish the two sides;
then emit the code for one side at a time. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree test_label = build_decl (LABEL_DECL, NULL_TREE, 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
/* See if the value is on the right. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->high),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
GT, NULL_RTX, mode, unsignedp,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
label_rtx (test_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
/* Value must be on the left.
Handle the left-hand subtree. */
emit_case_nodes (index, node->left, default_label, index_type);
/* If left-hand subtree does nothing,
go to default. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
emit_jump (default_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
/* Code branches here for the right-hand subtree. */
expand_label (test_label);
emit_case_nodes (index, node->right, default_label, index_type);
}
}
else if (node->right != 0 && node->left == 0)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Here we have a right child but no left so we issue a conditional
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
branch to default and process the right child.
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
Omit the conditional branch to default if the right child
does not have any children and is single valued; it would
cost too much space to save so little time. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (node->right->right || node->right->left
|| !tree_int_cst_equal (node->right->low, node->right->high))
{
if (!node_has_low_bound (node, index_type))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->high),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
LT, NULL_RTX, mode, unsignedp,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
default_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
}
emit_case_nodes (index, node->right, default_label, index_type);
}
else
/* We cannot process node->right normally
since we haven't ruled out the numbers less than
this node's value. So handle node->right explicitly. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
do_jump_if_equal (mode, index,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->right->low),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
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
label_rtx (node->right->code_label), unsignedp);
}
else if (node->right == 0 && node->left != 0)
{
/* Just one subtree, on the left. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (node->left->left || node->left->right
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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_int_cst_equal (node->left->low, node->left->high))
{
if (!node_has_high_bound (node, index_type))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->high),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
GT, NULL_RTX, mode, unsignedp,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
default_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
}
emit_case_nodes (index, node->left, default_label, index_type);
}
else
/* We cannot process node->left normally
since we haven't ruled out the numbers less than
this node's value. So handle node->left explicitly. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
do_jump_if_equal (mode, index,
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->left->low),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
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
label_rtx (node->left->code_label), unsignedp);
}
}
else
{
/* Node is a range. These cases are very similar to those for a single
value, except that we do not start by testing whether this node
is the one to branch to. */
if (node->right != 0 && node->left != 0)
{
/* Node has subtrees on both sides.
If the right-hand subtree is bounded,
test for it first, since we can go straight there.
Otherwise, we need to make a branch in the control structure,
then handle the two subtrees. */
tree test_label = 0;
if (node_is_bounded (node->right, index_type))
/* Right hand node is fully bounded so we can eliminate any
testing and branch directly to the target code. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->high),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
GT, NULL_RTX, mode, unsignedp,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
label_rtx (node->right->code_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
else
{
/* Right hand node requires testing.
Branch to a label where we will handle it later. */
test_label = build_decl (LABEL_DECL, NULL_TREE, NULL_TREE);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->high),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
GT, NULL_RTX, mode, unsignedp,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
label_rtx (test_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
}
/* Value belongs to this node or to the left-hand subtree. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->low),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
GE, NULL_RTX, mode, unsignedp,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
label_rtx (node->code_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
/* Handle the left-hand subtree. */
emit_case_nodes (index, node->left, default_label, index_type);
/* If right node had to be handled later, do that now. */
if (test_label)
{
/* If the left-hand subtree fell through,
don't let it fall into the right-hand subtree. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
emit_jump (default_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
expand_label (test_label);
emit_case_nodes (index, node->right, default_label, index_type);
}
}
else if (node->right != 0 && node->left == 0)
{
/* Deal with values to the left of this node,
if they are possible. */
if (!node_has_low_bound (node, index_type))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->low),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
LT, NULL_RTX, mode, unsignedp,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
default_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
}
/* Value belongs to this node or to the right-hand subtree. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->high),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
LE, NULL_RTX, mode, unsignedp,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
label_rtx (node->code_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
emit_case_nodes (index, node->right, default_label, index_type);
}
else if (node->right == 0 && node->left != 0)
{
/* Deal with values to the right of this node,
if they are possible. */
if (!node_has_high_bound (node, index_type))
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->high),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
GT, NULL_RTX, mode, unsignedp,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
default_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
}
/* Value belongs to this node or to the left-hand subtree. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->low),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
GE, NULL_RTX, mode, unsignedp,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
label_rtx (node->code_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
emit_case_nodes (index, node->left, default_label, index_type);
}
else
{
/* Node has no children so we check low and high bounds to remove
redundant tests. Only one of the bounds can exist,
since otherwise this node is bounded--a case tested already. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
int high_bound = node_has_high_bound (node, index_type);
int low_bound = node_has_low_bound (node, index_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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (!high_bound && low_bound)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->high),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
GT, NULL_RTX, mode, unsignedp,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
default_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
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else if (!low_bound && high_bound)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (index,
convert_modes
(mode, imode,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expand_normal (node->low),
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsignedp),
LT, NULL_RTX, mode, unsignedp,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
default_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
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
else if (!low_bound && !high_bound)
{
/* Widen LOW and HIGH to the same width as INDEX. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree type = lang_hooks.types.type_for_mode (mode, unsignedp);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree low = build1 (CONVERT_EXPR, type, node->low);
tree high = build1 (CONVERT_EXPR, type, node->high);
rtx low_rtx, new_index, new_bound;
/* Instead of doing two branches, emit one unsigned branch for
(index-low) > (high-low). */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
low_rtx = expand_expr (low, NULL_RTX, mode, EXPAND_NORMAL);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
new_index = expand_simple_binop (mode, MINUS, index, low_rtx,
NULL_RTX, unsignedp,
OPTAB_WIDEN);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
new_bound = expand_expr (fold_build2 (MINUS_EXPR, type,
high, low),
NULL_RTX, mode, EXPAND_NORMAL);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
emit_cmp_and_jump_insns (new_index, new_bound, GT, NULL_RTX,
mode, 1, default_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
emit_jump (label_rtx (node->code_label));
}
}
}
Reference in New Issue Copy Permalink