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freebsd-skq/contrib/gcc/optabs.c

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Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 the basic unary and binary arithmetic operations, for GNU compiler.
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, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
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
#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"
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
#include "toplev.h"
/* Include insn-config.h before expr.h so that HAVE_conditional_move
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
is properly defined. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
#include "insn-config.h"
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#include "rtl.h"
#include "tree.h"
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"
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 "function.h"
#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 "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 "optabs.h"
#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 "reload.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"
#include "real.h"
Gcc 3.2.2-release.
2003-02-10 05:41:50 +00:00
#include "basic-block.h"
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
#include "target.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
/* Each optab contains info on how this target machine
can perform a particular operation
for all sizes and kinds of operands.
The operation to be performed is often specified
by passing one of these optabs as an argument.
See expr.h for documentation of these optabs. */
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
optab optab_table[OTI_MAX];
rtx libfunc_table[LTI_MAX];
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
/* Tables of patterns for converting one mode to another. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
convert_optab convert_optab_table[COI_MAX];
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Contains the optab used for each rtx code. */
optab code_to_optab[NUM_RTX_CODE + 1];
/* Indexed by the rtx-code for a conditional (eg. EQ, LT,...)
gives the gen_function to make a branch to test that condition. */
rtxfun bcc_gen_fctn[NUM_RTX_CODE];
/* Indexed by the rtx-code for a conditional (eg. EQ, LT,...)
gives the insn code to make a store-condition insn
to test that condition. */
enum insn_code setcc_gen_code[NUM_RTX_CODE];
#ifdef HAVE_conditional_move
/* Indexed by the machine mode, gives the insn code to make a conditional
move insn. This is not indexed by the rtx-code like bcc_gen_fctn and
setcc_gen_code to cut down on the number of named patterns. Consider a day
when a lot more rtx codes are conditional (eg: for the ARM). */
enum insn_code movcc_gen_code[NUM_MACHINE_MODES];
#endif
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Indexed by the machine mode, gives the insn code for vector conditional
operation. */
enum insn_code vcond_gen_code[NUM_MACHINE_MODES];
enum insn_code vcondu_gen_code[NUM_MACHINE_MODES];
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
/* The insn generating function can not take an rtx_code argument.
TRAP_RTX is used as an rtx argument. Its code is replaced with
the code to be used in the trap insn and all other fields are ignored. */
static GTY(()) rtx trap_rtx;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
static int add_equal_note (rtx, rtx, enum rtx_code, rtx, rtx);
static rtx widen_operand (rtx, enum machine_mode, enum machine_mode, int,
int);
static void prepare_cmp_insn (rtx *, rtx *, enum rtx_code *, rtx,
enum machine_mode *, int *,
enum can_compare_purpose);
static enum insn_code can_fix_p (enum machine_mode, enum machine_mode, int,
int *);
static enum insn_code can_float_p (enum machine_mode, enum machine_mode, int);
static optab new_optab (void);
static convert_optab new_convert_optab (void);
static inline optab init_optab (enum rtx_code);
static inline optab init_optabv (enum rtx_code);
static inline convert_optab init_convert_optab (enum rtx_code);
static void init_libfuncs (optab, int, int, const char *, int);
static void init_integral_libfuncs (optab, const char *, int);
static void init_floating_libfuncs (optab, const char *, int);
static void init_interclass_conv_libfuncs (convert_optab, const char *,
enum mode_class, enum mode_class);
static void init_intraclass_conv_libfuncs (convert_optab, const char *,
enum mode_class, bool);
static void emit_cmp_and_jump_insn_1 (rtx, rtx, enum machine_mode,
enum rtx_code, int, rtx);
static void prepare_float_lib_cmp (rtx *, rtx *, enum rtx_code *,
enum machine_mode *, int *);
static rtx widen_clz (enum machine_mode, rtx, rtx);
static rtx expand_parity (enum machine_mode, rtx, rtx);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
static enum rtx_code get_rtx_code (enum tree_code, bool);
static rtx vector_compare_rtx (tree, bool, enum insn_code);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
#ifndef HAVE_conditional_trap
#define HAVE_conditional_trap 0
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
#define gen_conditional_trap(a,b) (gcc_unreachable (), NULL_RTX)
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
/* Add a REG_EQUAL note to the last insn in INSNS. TARGET is being set to
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 result of operation CODE applied to OP0 (and OP1 if it is a binary
operation).
If the last insn does not set TARGET, don't do anything, but return 1.
If a previous insn sets TARGET and TARGET is one of OP0 or OP1,
don't add the REG_EQUAL note but return 0. Our caller can then try
again, ensuring that TARGET is not one of the operands. */
static int
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
add_equal_note (rtx insns, rtx target, enum rtx_code code, rtx op0, rtx op1)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
rtx last_insn, insn, set;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
rtx note;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (insns && INSN_P (insns) && NEXT_INSN (insns));
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 (GET_RTX_CLASS (code) != RTX_COMM_ARITH
&& GET_RTX_CLASS (code) != RTX_BIN_ARITH
&& GET_RTX_CLASS (code) != RTX_COMM_COMPARE
&& GET_RTX_CLASS (code) != RTX_COMPARE
&& GET_RTX_CLASS (code) != RTX_UNARY)
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
return 1;
if (GET_CODE (target) == ZERO_EXTRACT)
return 1;
for (last_insn = insns;
NEXT_INSN (last_insn) != NULL_RTX;
last_insn = NEXT_INSN (last_insn))
;
set = single_set (last_insn);
if (set == NULL_RTX)
return 1;
if (! rtx_equal_p (SET_DEST (set), target)
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* For a STRICT_LOW_PART, the REG_NOTE applies to what is inside it. */
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
&& (GET_CODE (SET_DEST (set)) != STRICT_LOW_PART
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
|| ! rtx_equal_p (XEXP (SET_DEST (set), 0), target)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return 1;
/* If TARGET is in OP0 or OP1, check if anything in SEQ sets TARGET
besides the last insn. */
if (reg_overlap_mentioned_p (target, op0)
|| (op1 && reg_overlap_mentioned_p (target, op1)))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
{
insn = PREV_INSN (last_insn);
while (insn != NULL_RTX)
{
if (reg_set_p (target, insn))
return 0;
insn = PREV_INSN (insn);
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (GET_RTX_CLASS (code) == RTX_UNARY)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
note = gen_rtx_fmt_e (code, GET_MODE (target), copy_rtx (op0));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
note = gen_rtx_fmt_ee (code, GET_MODE (target), copy_rtx (op0), copy_rtx (op1));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
set_unique_reg_note (last_insn, REG_EQUAL, note);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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;
}
/* Widen OP to MODE and return the rtx for the widened operand. UNSIGNEDP
says whether OP is signed or unsigned. NO_EXTEND is nonzero if we need
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
not actually do a sign-extend or zero-extend, but can leave the
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
higher-order bits of the result rtx undefined, for example, in the case
of logical operations, but not right shifts. */
static rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
widen_operand (rtx op, enum machine_mode mode, enum machine_mode oldmode,
int unsignedp, int no_extend)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 result;
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 we don't have to extend and this is a constant, return it. */
if (no_extend && GET_MODE (op) == VOIDmode)
return op;
/* If we must extend do so. If OP is a SUBREG for a promoted object, also
extend since it will be more efficient to do so unless the signedness of
a promoted object differs from our extension. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (! no_extend
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
|| (GET_CODE (op) == SUBREG && SUBREG_PROMOTED_VAR_P (op)
&& SUBREG_PROMOTED_UNSIGNED_P (op) == 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
return convert_modes (mode, oldmode, op, unsignedp);
/* If MODE is no wider than a single word, we return a paradoxical
SUBREG. */
if (GET_MODE_SIZE (mode) <= UNITS_PER_WORD)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return gen_rtx_SUBREG (mode, force_reg (GET_MODE (op), op), 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
/* Otherwise, get an object of MODE, clobber it, and set the low-order
part to OP. */
result = gen_reg_rtx (mode);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_insn (gen_rtx_CLOBBER (VOIDmode, result));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
emit_move_insn (gen_lowpart (GET_MODE (op), result), op);
return result;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Return the optab used for computing the operation given by
the tree code, CODE. This function is not always usable (for
example, it cannot give complete results for multiplication
or division) but probably ought to be relied on more widely
throughout the expander. */
optab
optab_for_tree_code (enum tree_code code, tree type)
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
bool trapv;
switch (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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
case BIT_AND_EXPR:
return and_optab;
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
case BIT_IOR_EXPR:
return ior_optab;
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
case BIT_NOT_EXPR:
return one_cmpl_optab;
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
case BIT_XOR_EXPR:
return xor_optab;
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
case TRUNC_MOD_EXPR:
case CEIL_MOD_EXPR:
case FLOOR_MOD_EXPR:
case ROUND_MOD_EXPR:
return TYPE_UNSIGNED (type) ? umod_optab : smod_optab;
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
case RDIV_EXPR:
case TRUNC_DIV_EXPR:
case CEIL_DIV_EXPR:
case FLOOR_DIV_EXPR:
case ROUND_DIV_EXPR:
case EXACT_DIV_EXPR:
return TYPE_UNSIGNED (type) ? udiv_optab : sdiv_optab;
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
case LSHIFT_EXPR:
return ashl_optab;
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
case RSHIFT_EXPR:
return TYPE_UNSIGNED (type) ? lshr_optab : ashr_optab;
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
case LROTATE_EXPR:
return rotl_optab;
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
case RROTATE_EXPR:
return rotr_optab;
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
case MAX_EXPR:
return TYPE_UNSIGNED (type) ? umax_optab : smax_optab;
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
case MIN_EXPR:
return TYPE_UNSIGNED (type) ? umin_optab : smin_optab;
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
case REALIGN_LOAD_EXPR:
return vec_realign_load_optab;
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
case WIDEN_SUM_EXPR:
return TYPE_UNSIGNED (type) ? usum_widen_optab : ssum_widen_optab;
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
case DOT_PROD_EXPR:
return TYPE_UNSIGNED (type) ? udot_prod_optab : sdot_prod_optab;
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
case REDUC_MAX_EXPR:
return TYPE_UNSIGNED (type) ? reduc_umax_optab : reduc_smax_optab;
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
case REDUC_MIN_EXPR:
return TYPE_UNSIGNED (type) ? reduc_umin_optab : reduc_smin_optab;
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
case REDUC_PLUS_EXPR:
return TYPE_UNSIGNED (type) ? reduc_uplus_optab : reduc_splus_optab;
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
case VEC_LSHIFT_EXPR:
return vec_shl_optab;
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
case VEC_RSHIFT_EXPR:
return vec_shr_optab;
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
default:
break;
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
trapv = INTEGRAL_TYPE_P (type) && TYPE_OVERFLOW_TRAPS (type);
switch (code)
{
case PLUS_EXPR:
return trapv ? addv_optab : add_optab;
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
case MINUS_EXPR:
return trapv ? subv_optab : sub_optab;
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
case MULT_EXPR:
return trapv ? smulv_optab : smul_optab;
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
case NEGATE_EXPR:
return trapv ? negv_optab : neg_optab;
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
case ABS_EXPR:
return trapv ? absv_optab : abs_optab;
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
default:
return NULL;
}
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
/* Expand vector widening operations.
There are two different classes of operations handled here:
1) Operations whose result is wider than all the arguments to the operation.
Examples: VEC_UNPACK_HI/LO_EXPR, VEC_WIDEN_MULT_HI/LO_EXPR
In this case OP0 and optionally OP1 would be initialized,
but WIDE_OP wouldn't (not relevant for this case).
2) Operations whose result is of the same size as the last argument to the
operation, but wider than all the other arguments to the operation.
Examples: WIDEN_SUM_EXPR, VEC_DOT_PROD_EXPR.
In the case WIDE_OP, OP0 and optionally OP1 would be initialized.
E.g, when called to expand the following operations, this is how
the arguments will be initialized:
nops OP0 OP1 WIDE_OP
widening-sum 2 oprnd0 - oprnd1
widening-dot-product 3 oprnd0 oprnd1 oprnd2
widening-mult 2 oprnd0 oprnd1 -
type-promotion (vec-unpack) 1 oprnd0 - - */
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
rtx
expand_widen_pattern_expr (tree exp, rtx op0, rtx op1, rtx wide_op, rtx target,
int unsignedp)
{
tree oprnd0, oprnd1, oprnd2;
enum machine_mode wmode = 0, tmode0, tmode1 = 0;
optab widen_pattern_optab;
int icode;
enum machine_mode xmode0, xmode1 = 0, wxmode = 0;
rtx temp;
rtx pat;
rtx xop0, xop1, wxop;
int nops = TREE_CODE_LENGTH (TREE_CODE (exp));
oprnd0 = TREE_OPERAND (exp, 0);
tmode0 = TYPE_MODE (TREE_TYPE (oprnd0));
widen_pattern_optab =
optab_for_tree_code (TREE_CODE (exp), TREE_TYPE (oprnd0));
icode = (int) widen_pattern_optab->handlers[(int) tmode0].insn_code;
gcc_assert (icode != CODE_FOR_nothing);
xmode0 = insn_data[icode].operand[1].mode;
if (nops >= 2)
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
oprnd1 = TREE_OPERAND (exp, 1);
tmode1 = TYPE_MODE (TREE_TYPE (oprnd1));
xmode1 = insn_data[icode].operand[2].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
}
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
/* The last operand is of a wider mode than the rest of the operands. */
if (nops == 2)
{
wmode = tmode1;
wxmode = xmode1;
}
else if (nops == 3)
{
gcc_assert (tmode1 == tmode0);
gcc_assert (op1);
oprnd2 = TREE_OPERAND (exp, 2);
wmode = TYPE_MODE (TREE_TYPE (oprnd2));
wxmode = insn_data[icode].operand[3].mode;
}
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 (!wide_op)
wmode = wxmode = insn_data[icode].operand[0].mode;
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 (!target
|| ! (*insn_data[icode].operand[0].predicate) (target, wmode))
temp = gen_reg_rtx (wmode);
else
temp = target;
xop0 = op0;
xop1 = op1;
wxop = wide_op;
/* In case the insn wants input operands in modes different from
those of the actual operands, convert the operands. It would
seem that we don't need to convert CONST_INTs, but we do, so
that they're properly zero-extended, sign-extended or truncated
for their mode. */
if (GET_MODE (op0) != xmode0 && xmode0 != VOIDmode)
xop0 = convert_modes (xmode0,
GET_MODE (op0) != VOIDmode
? GET_MODE (op0)
: tmode0,
xop0, unsignedp);
if (op1)
if (GET_MODE (op1) != xmode1 && xmode1 != VOIDmode)
xop1 = convert_modes (xmode1,
GET_MODE (op1) != VOIDmode
? GET_MODE (op1)
: tmode1,
xop1, unsignedp);
if (wide_op)
if (GET_MODE (wide_op) != wxmode && wxmode != VOIDmode)
wxop = convert_modes (wxmode,
GET_MODE (wide_op) != VOIDmode
? GET_MODE (wide_op)
: wmode,
wxop, unsignedp);
/* Now, if insn's predicates don't allow our operands, put them into
pseudo regs. */
if (! (*insn_data[icode].operand[1].predicate) (xop0, xmode0)
&& xmode0 != VOIDmode)
xop0 = copy_to_mode_reg (xmode0, xop0);
if (op1)
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 (! (*insn_data[icode].operand[2].predicate) (xop1, xmode1)
&& xmode1 != VOIDmode)
xop1 = copy_to_mode_reg (xmode1, xop1);
if (wide_op)
{
if (! (*insn_data[icode].operand[3].predicate) (wxop, wxmode)
&& wxmode != VOIDmode)
wxop = copy_to_mode_reg (wxmode, wxop);
pat = GEN_FCN (icode) (temp, xop0, xop1, wxop);
}
else
pat = GEN_FCN (icode) (temp, xop0, xop1);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
}
else
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (wide_op)
{
if (! (*insn_data[icode].operand[2].predicate) (wxop, wxmode)
&& wxmode != VOIDmode)
wxop = copy_to_mode_reg (wxmode, wxop);
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
pat = GEN_FCN (icode) (temp, xop0, wxop);
}
else
pat = GEN_FCN (icode) (temp, xop0);
}
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
emit_insn (pat);
return temp;
}
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
/* Generate code to perform an operation specified by TERNARY_OPTAB
on operands OP0, OP1 and OP2, with result having machine-mode MODE.
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
UNSIGNEDP is for the case where we have to widen the operands
to perform the operation. It says to use zero-extension.
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 TARGET is nonzero, the value
is generated there, if it is convenient to do so.
In all cases an rtx is returned for the locus of the value;
this may or may not be TARGET. */
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
rtx
expand_ternary_op (enum machine_mode mode, optab ternary_optab, rtx op0,
rtx op1, rtx op2, rtx target, int unsignedp)
{
int icode = (int) ternary_optab->handlers[(int) mode].insn_code;
enum machine_mode mode0 = insn_data[icode].operand[1].mode;
enum machine_mode mode1 = insn_data[icode].operand[2].mode;
enum machine_mode mode2 = insn_data[icode].operand[3].mode;
rtx temp;
rtx pat;
rtx xop0 = op0, xop1 = op1, xop2 = op2;
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
gcc_assert (ternary_optab->handlers[(int) mode].insn_code
!= CODE_FOR_nothing);
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 (!target || !insn_data[icode].operand[0].predicate (target, mode))
temp = gen_reg_rtx (mode);
else
temp = target;
/* In case the insn wants input operands in modes different from
those of the actual operands, convert the operands. It would
seem that we don't need to convert CONST_INTs, but we do, so
that they're properly zero-extended, sign-extended or truncated
for their mode. */
if (GET_MODE (op0) != mode0 && mode0 != VOIDmode)
xop0 = convert_modes (mode0,
GET_MODE (op0) != VOIDmode
? GET_MODE (op0)
: mode,
xop0, unsignedp);
if (GET_MODE (op1) != mode1 && mode1 != VOIDmode)
xop1 = convert_modes (mode1,
GET_MODE (op1) != VOIDmode
? GET_MODE (op1)
: mode,
xop1, unsignedp);
if (GET_MODE (op2) != mode2 && mode2 != VOIDmode)
xop2 = convert_modes (mode2,
GET_MODE (op2) != VOIDmode
? GET_MODE (op2)
: mode,
xop2, unsignedp);
/* Now, if insn's predicates don't allow our operands, put them into
pseudo regs. */
if (!insn_data[icode].operand[1].predicate (xop0, mode0)
&& mode0 != VOIDmode)
xop0 = copy_to_mode_reg (mode0, xop0);
if (!insn_data[icode].operand[2].predicate (xop1, mode1)
&& mode1 != VOIDmode)
xop1 = copy_to_mode_reg (mode1, xop1);
if (!insn_data[icode].operand[3].predicate (xop2, mode2)
&& mode2 != VOIDmode)
xop2 = copy_to_mode_reg (mode2, xop2);
pat = GEN_FCN (icode) (temp, xop0, xop1, xop2);
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
emit_insn (pat);
return temp;
}
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
/* Like expand_binop, but return a constant rtx if the result can be
calculated at compile time. The arguments and return value are
otherwise the same as for expand_binop. */
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
static rtx
simplify_expand_binop (enum machine_mode mode, optab binoptab,
rtx op0, rtx op1, rtx target, int unsignedp,
enum optab_methods methods)
{
if (CONSTANT_P (op0) && CONSTANT_P (op1))
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
rtx x = simplify_binary_operation (binoptab->code, mode, op0, op1);
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 (x)
return x;
}
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
return expand_binop (mode, binoptab, op0, op1, target, unsignedp, methods);
}
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
/* Like simplify_expand_binop, but always put the result in TARGET.
Return true if the expansion succeeded. */
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
bool
force_expand_binop (enum machine_mode mode, optab binoptab,
rtx op0, rtx op1, rtx target, int unsignedp,
enum optab_methods methods)
{
rtx x = simplify_expand_binop (mode, binoptab, op0, op1,
target, unsignedp, methods);
if (x == 0)
return false;
if (x != target)
emit_move_insn (target, x);
return true;
}
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
/* Generate insns for VEC_LSHIFT_EXPR, VEC_RSHIFT_EXPR. */
rtx
expand_vec_shift_expr (tree vec_shift_expr, rtx target)
{
enum insn_code icode;
rtx rtx_op1, rtx_op2;
enum machine_mode mode1;
enum machine_mode mode2;
enum machine_mode mode = TYPE_MODE (TREE_TYPE (vec_shift_expr));
tree vec_oprnd = TREE_OPERAND (vec_shift_expr, 0);
tree shift_oprnd = TREE_OPERAND (vec_shift_expr, 1);
optab shift_optab;
rtx pat;
switch (TREE_CODE (vec_shift_expr))
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
case VEC_RSHIFT_EXPR:
shift_optab = vec_shr_optab;
break;
case VEC_LSHIFT_EXPR:
shift_optab = vec_shl_optab;
break;
default:
gcc_unreachable ();
}
icode = (int) shift_optab->handlers[(int) mode].insn_code;
gcc_assert (icode != CODE_FOR_nothing);
mode1 = insn_data[icode].operand[1].mode;
mode2 = insn_data[icode].operand[2].mode;
rtx_op1 = expand_expr (vec_oprnd, NULL_RTX, VOIDmode, EXPAND_NORMAL);
if (!(*insn_data[icode].operand[1].predicate) (rtx_op1, mode1)
&& mode1 != VOIDmode)
rtx_op1 = force_reg (mode1, rtx_op1);
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
rtx_op2 = expand_expr (shift_oprnd, NULL_RTX, VOIDmode, EXPAND_NORMAL);
if (!(*insn_data[icode].operand[2].predicate) (rtx_op2, mode2)
&& mode2 != VOIDmode)
rtx_op2 = force_reg (mode2, rtx_op2);
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 (!target
|| ! (*insn_data[icode].operand[0].predicate) (target, mode))
target = gen_reg_rtx (mode);
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
/* Emit instruction */
pat = GEN_FCN (icode) (target, rtx_op1, rtx_op2);
gcc_assert (pat);
emit_insn (pat);
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
return target;
}
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
/* This subroutine of expand_doubleword_shift handles the cases in which
the effective shift value is >= BITS_PER_WORD. The arguments and return
value are the same as for the parent routine, except that SUPERWORD_OP1
is the shift count to use when shifting OUTOF_INPUT into INTO_TARGET.
INTO_TARGET may be null if the caller has decided to calculate it. */
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
static bool
expand_superword_shift (optab binoptab, rtx outof_input, rtx superword_op1,
rtx outof_target, rtx into_target,
int unsignedp, enum optab_methods methods)
{
if (into_target != 0)
if (!force_expand_binop (word_mode, binoptab, outof_input, superword_op1,
into_target, unsignedp, methods))
return false;
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 (outof_target != 0)
{
/* For a signed right shift, we must fill OUTOF_TARGET with copies
of the sign bit, otherwise we must fill it with zeros. */
if (binoptab != ashr_optab)
emit_move_insn (outof_target, CONST0_RTX (word_mode));
else
if (!force_expand_binop (word_mode, binoptab,
outof_input, GEN_INT (BITS_PER_WORD - 1),
outof_target, unsignedp, methods))
return false;
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
return true;
}
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
/* This subroutine of expand_doubleword_shift handles the cases in which
the effective shift value is < BITS_PER_WORD. The arguments and return
value are the same as for the parent routine. */
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
static bool
expand_subword_shift (enum machine_mode op1_mode, optab binoptab,
rtx outof_input, rtx into_input, rtx op1,
rtx outof_target, rtx into_target,
int unsignedp, enum optab_methods methods,
unsigned HOST_WIDE_INT shift_mask)
{
optab reverse_unsigned_shift, unsigned_shift;
rtx tmp, carries;
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
reverse_unsigned_shift = (binoptab == ashl_optab ? lshr_optab : ashl_optab);
unsigned_shift = (binoptab == ashl_optab ? ashl_optab : lshr_optab);
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
/* The low OP1 bits of INTO_TARGET come from the high bits of OUTOF_INPUT.
We therefore need to shift OUTOF_INPUT by (BITS_PER_WORD - OP1) bits in
the opposite direction to BINOPTAB. */
if (CONSTANT_P (op1) || shift_mask >= BITS_PER_WORD)
{
carries = outof_input;
tmp = immed_double_const (BITS_PER_WORD, 0, op1_mode);
tmp = simplify_expand_binop (op1_mode, sub_optab, tmp, op1,
0, true, methods);
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
else
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
{
/* We must avoid shifting by BITS_PER_WORD bits since that is either
the same as a zero shift (if shift_mask == BITS_PER_WORD - 1) or
has unknown behavior. Do a single shift first, then shift by the
remainder. It's OK to use ~OP1 as the remainder if shift counts
are truncated to the mode size. */
carries = expand_binop (word_mode, reverse_unsigned_shift,
outof_input, const1_rtx, 0, unsignedp, methods);
if (shift_mask == BITS_PER_WORD - 1)
{
tmp = immed_double_const (-1, -1, op1_mode);
tmp = simplify_expand_binop (op1_mode, xor_optab, op1, tmp,
0, true, methods);
}
else
{
tmp = immed_double_const (BITS_PER_WORD - 1, 0, op1_mode);
tmp = simplify_expand_binop (op1_mode, sub_optab, tmp, op1,
0, true, methods);
}
}
if (tmp == 0 || carries == 0)
return false;
carries = expand_binop (word_mode, reverse_unsigned_shift,
carries, tmp, 0, unsignedp, methods);
if (carries == 0)
return false;
/* Shift INTO_INPUT logically by OP1. This is the last use of INTO_INPUT
so the result can go directly into INTO_TARGET if convenient. */
tmp = expand_binop (word_mode, unsigned_shift, into_input, op1,
into_target, unsignedp, methods);
if (tmp == 0)
return false;
/* Now OR in the bits carried over from OUTOF_INPUT. */
if (!force_expand_binop (word_mode, ior_optab, tmp, carries,
into_target, unsignedp, methods))
return false;
/* Use a standard word_mode shift for the out-of half. */
if (outof_target != 0)
if (!force_expand_binop (word_mode, binoptab, outof_input, op1,
outof_target, unsignedp, methods))
return false;
return true;
}
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
#ifdef HAVE_conditional_move
/* Try implementing expand_doubleword_shift using conditional moves.
The shift is by < BITS_PER_WORD if (CMP_CODE CMP1 CMP2) is true,
otherwise it is by >= BITS_PER_WORD. SUBWORD_OP1 and SUPERWORD_OP1
are the shift counts to use in the former and latter case. All other
arguments are the same as the parent routine. */
static bool
expand_doubleword_shift_condmove (enum machine_mode op1_mode, optab binoptab,
enum rtx_code cmp_code, rtx cmp1, rtx cmp2,
rtx outof_input, rtx into_input,
rtx subword_op1, rtx superword_op1,
rtx outof_target, rtx into_target,
int unsignedp, enum optab_methods methods,
unsigned HOST_WIDE_INT shift_mask)
{
rtx outof_superword, into_superword;
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
/* Put the superword version of the output into OUTOF_SUPERWORD and
INTO_SUPERWORD. */
outof_superword = outof_target != 0 ? gen_reg_rtx (word_mode) : 0;
if (outof_target != 0 && subword_op1 == superword_op1)
{
/* The value INTO_TARGET >> SUBWORD_OP1, which we later store in
OUTOF_TARGET, is the same as the value of INTO_SUPERWORD. */
into_superword = outof_target;
if (!expand_superword_shift (binoptab, outof_input, superword_op1,
outof_superword, 0, unsignedp, methods))
return false;
}
else
{
into_superword = gen_reg_rtx (word_mode);
if (!expand_superword_shift (binoptab, outof_input, superword_op1,
outof_superword, into_superword,
unsignedp, methods))
return false;
}
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
/* Put the subword version directly in OUTOF_TARGET and INTO_TARGET. */
if (!expand_subword_shift (op1_mode, binoptab,
outof_input, into_input, subword_op1,
outof_target, into_target,
unsignedp, methods, shift_mask))
return false;
/* Select between them. Do the INTO half first because INTO_SUPERWORD
might be the current value of OUTOF_TARGET. */
if (!emit_conditional_move (into_target, cmp_code, cmp1, cmp2, op1_mode,
into_target, into_superword, word_mode, false))
return false;
if (outof_target != 0)
if (!emit_conditional_move (outof_target, cmp_code, cmp1, cmp2, op1_mode,
outof_target, outof_superword,
word_mode, false))
return false;
return true;
}
#endif
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
/* Expand a doubleword shift (ashl, ashr or lshr) using word-mode shifts.
OUTOF_INPUT and INTO_INPUT are the two word-sized halves of the first
input operand; the shift moves bits in the direction OUTOF_INPUT->
INTO_TARGET. OUTOF_TARGET and INTO_TARGET are the equivalent words
of the target. OP1 is the shift count and OP1_MODE is its mode.
If OP1 is constant, it will have been truncated as appropriate
and is known to be nonzero.
If SHIFT_MASK is zero, the result of word shifts is undefined when the
shift count is outside the range [0, BITS_PER_WORD). This routine must
avoid generating such shifts for OP1s in the range [0, BITS_PER_WORD * 2).
If SHIFT_MASK is nonzero, all word-mode shift counts are effectively
masked by it and shifts in the range [BITS_PER_WORD, SHIFT_MASK) will
fill with zeros or sign bits as appropriate.
If SHIFT_MASK is BITS_PER_WORD - 1, this routine will synthesize
a doubleword shift whose equivalent mask is BITS_PER_WORD * 2 - 1.
Doing this preserves semantics required by SHIFT_COUNT_TRUNCATED.
In all other cases, shifts by values outside [0, BITS_PER_UNIT * 2)
are undefined.
BINOPTAB, UNSIGNEDP and METHODS are as for expand_binop. This function
may not use INTO_INPUT after modifying INTO_TARGET, and similarly for
OUTOF_INPUT and OUTOF_TARGET. OUTOF_TARGET can be null if the parent
function wants to calculate it itself.
Return true if the shift could be successfully synthesized. */
static bool
expand_doubleword_shift (enum machine_mode op1_mode, optab binoptab,
rtx outof_input, rtx into_input, rtx op1,
rtx outof_target, rtx into_target,
int unsignedp, enum optab_methods methods,
unsigned HOST_WIDE_INT shift_mask)
{
rtx superword_op1, tmp, cmp1, cmp2;
rtx subword_label, done_label;
enum rtx_code cmp_code;
/* See if word-mode shifts by BITS_PER_WORD...BITS_PER_WORD * 2 - 1 will
fill the result with sign or zero bits as appropriate. If so, the value
of OUTOF_TARGET will always be (SHIFT OUTOF_INPUT OP1). Recursively call
this routine to calculate INTO_TARGET (which depends on both OUTOF_INPUT
and INTO_INPUT), then emit code to set up OUTOF_TARGET.
This isn't worthwhile for constant shifts since the optimizers will
cope better with in-range shift counts. */
if (shift_mask >= BITS_PER_WORD
&& outof_target != 0
&& !CONSTANT_P (op1))
{
if (!expand_doubleword_shift (op1_mode, binoptab,
outof_input, into_input, op1,
0, into_target,
unsignedp, methods, shift_mask))
return false;
if (!force_expand_binop (word_mode, binoptab, outof_input, op1,
outof_target, unsignedp, methods))
return false;
return true;
}
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
/* Set CMP_CODE, CMP1 and CMP2 so that the rtx (CMP_CODE CMP1 CMP2)
is true when the effective shift value is less than BITS_PER_WORD.
Set SUPERWORD_OP1 to the shift count that should be used to shift
OUTOF_INPUT into INTO_TARGET when the condition is false. */
tmp = immed_double_const (BITS_PER_WORD, 0, op1_mode);
if (!CONSTANT_P (op1) && shift_mask == BITS_PER_WORD - 1)
{
/* Set CMP1 to OP1 & BITS_PER_WORD. The result is zero iff OP1
is a subword shift count. */
cmp1 = simplify_expand_binop (op1_mode, and_optab, op1, tmp,
0, true, methods);
cmp2 = CONST0_RTX (op1_mode);
cmp_code = EQ;
superword_op1 = op1;
}
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
else
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
{
/* Set CMP1 to OP1 - BITS_PER_WORD. */
cmp1 = simplify_expand_binop (op1_mode, sub_optab, op1, tmp,
0, true, methods);
cmp2 = CONST0_RTX (op1_mode);
cmp_code = LT;
superword_op1 = cmp1;
}
if (cmp1 == 0)
return false;
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 we can compute the condition at compile time, pick the
appropriate subroutine. */
tmp = simplify_relational_operation (cmp_code, SImode, op1_mode, cmp1, cmp2);
if (tmp != 0 && GET_CODE (tmp) == CONST_INT)
{
if (tmp == const0_rtx)
return expand_superword_shift (binoptab, outof_input, superword_op1,
outof_target, into_target,
unsignedp, methods);
else
return expand_subword_shift (op1_mode, binoptab,
outof_input, into_input, op1,
outof_target, into_target,
unsignedp, methods, shift_mask);
}
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
#ifdef HAVE_conditional_move
/* Try using conditional moves to generate straight-line code. */
{
rtx start = get_last_insn ();
if (expand_doubleword_shift_condmove (op1_mode, binoptab,
cmp_code, cmp1, cmp2,
outof_input, into_input,
op1, superword_op1,
outof_target, into_target,
unsignedp, methods, shift_mask))
return true;
delete_insns_since (start);
}
#endif
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
/* As a last resort, use branches to select the correct alternative. */
subword_label = gen_label_rtx ();
done_label = gen_label_rtx ();
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
NO_DEFER_POP;
do_compare_rtx_and_jump (cmp1, cmp2, cmp_code, false, op1_mode,
0, 0, subword_label);
OK_DEFER_POP;
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 (!expand_superword_shift (binoptab, outof_input, superword_op1,
outof_target, into_target,
unsignedp, methods))
return false;
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
emit_jump_insn (gen_jump (done_label));
emit_barrier ();
emit_label (subword_label);
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 (!expand_subword_shift (op1_mode, binoptab,
outof_input, into_input, op1,
outof_target, into_target,
unsignedp, methods, shift_mask))
return false;
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
emit_label (done_label);
return true;
}
/* Subroutine of expand_binop. Perform a double word multiplication of
operands OP0 and OP1 both of mode MODE, which is exactly twice as wide
as the target's word_mode. This function return NULL_RTX if anything
goes wrong, in which case it may have already emitted instructions
which need to be deleted.
If we want to multiply two two-word values and have normal and widening
multiplies of single-word values, we can do this with three smaller
multiplications. Note that we do not make a REG_NO_CONFLICT block here
because we are not operating on one word at a time.
The multiplication proceeds as follows:
_______________________
[__op0_high_|__op0_low__]
_______________________
* [__op1_high_|__op1_low__]
_______________________________________________
_______________________
(1) [__op0_low__*__op1_low__]
_______________________
(2a) [__op0_low__*__op1_high_]
_______________________
(2b) [__op0_high_*__op1_low__]
_______________________
(3) [__op0_high_*__op1_high_]
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
This gives a 4-word result. Since we are only interested in the
lower 2 words, partial result (3) and the upper words of (2a) and
(2b) don't need to be calculated. Hence (2a) and (2b) can be
calculated using non-widening multiplication.
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
(1), however, needs to be calculated with an unsigned widening
multiplication. If this operation is not directly supported we
try using a signed widening multiplication and adjust the result.
This adjustment works as follows:
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 both operands are positive then no adjustment is needed.
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 the operands have different signs, for example op0_low < 0 and
op1_low >= 0, the instruction treats the most significant bit of
op0_low as a sign bit instead of a bit with significance
2**(BITS_PER_WORD-1), i.e. the instruction multiplies op1_low
with 2**BITS_PER_WORD - op0_low, and two's complements the
result. Conclusion: We need to add op1_low * 2**BITS_PER_WORD to
the result.
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
Similarly, if both operands are negative, we need to add
(op0_low + op1_low) * 2**BITS_PER_WORD.
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
We use a trick to adjust quickly. We logically shift op0_low right
(op1_low) BITS_PER_WORD-1 steps to get 0 or 1, and add this to
op0_high (op1_high) before it is used to calculate 2b (2a). If no
logical shift exists, we do an arithmetic right shift and subtract
the 0 or -1. */
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
static rtx
expand_doubleword_mult (enum machine_mode mode, rtx op0, rtx op1, rtx target,
bool umulp, enum optab_methods methods)
{
int low = (WORDS_BIG_ENDIAN ? 1 : 0);
int high = (WORDS_BIG_ENDIAN ? 0 : 1);
rtx wordm1 = umulp ? NULL_RTX : GEN_INT (BITS_PER_WORD - 1);
rtx product, adjust, product_high, temp;
rtx op0_high = operand_subword_force (op0, high, mode);
rtx op0_low = operand_subword_force (op0, low, mode);
rtx op1_high = operand_subword_force (op1, high, mode);
rtx op1_low = operand_subword_force (op1, low, mode);
/* If we're using an unsigned multiply to directly compute the product
of the low-order words of the operands and perform any required
adjustments of the operands, we begin by trying two more multiplications
and then computing the appropriate sum.
We have checked above that the required addition is provided.
Full-word addition will normally always succeed, especially if
it is provided at all, so we don't worry about its failure. The
multiplication may well fail, however, so we do handle that. */
if (!umulp)
{
/* ??? This could be done with emit_store_flag where available. */
temp = expand_binop (word_mode, lshr_optab, op0_low, wordm1,
NULL_RTX, 1, methods);
if (temp)
op0_high = expand_binop (word_mode, add_optab, op0_high, temp,
NULL_RTX, 0, OPTAB_DIRECT);
else
{
temp = expand_binop (word_mode, ashr_optab, op0_low, wordm1,
NULL_RTX, 0, methods);
if (!temp)
return NULL_RTX;
op0_high = expand_binop (word_mode, sub_optab, op0_high, temp,
NULL_RTX, 0, OPTAB_DIRECT);
}
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 (!op0_high)
return NULL_RTX;
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
adjust = expand_binop (word_mode, smul_optab, op0_high, op1_low,
NULL_RTX, 0, OPTAB_DIRECT);
if (!adjust)
return NULL_RTX;
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
/* OP0_HIGH should now be dead. */
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 (!umulp)
{
/* ??? This could be done with emit_store_flag where available. */
temp = expand_binop (word_mode, lshr_optab, op1_low, wordm1,
NULL_RTX, 1, methods);
if (temp)
op1_high = expand_binop (word_mode, add_optab, op1_high, temp,
NULL_RTX, 0, OPTAB_DIRECT);
else
{
temp = expand_binop (word_mode, ashr_optab, op1_low, wordm1,
NULL_RTX, 0, methods);
if (!temp)
return NULL_RTX;
op1_high = expand_binop (word_mode, sub_optab, op1_high, temp,
NULL_RTX, 0, OPTAB_DIRECT);
}
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 (!op1_high)
return NULL_RTX;
}
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
temp = expand_binop (word_mode, smul_optab, op1_high, op0_low,
NULL_RTX, 0, OPTAB_DIRECT);
if (!temp)
return NULL_RTX;
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
/* OP1_HIGH should now be dead. */
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
adjust = expand_binop (word_mode, add_optab, adjust, temp,
adjust, 0, OPTAB_DIRECT);
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 (target && !REG_P (target))
target = NULL_RTX;
if (umulp)
product = expand_binop (mode, umul_widen_optab, op0_low, op1_low,
target, 1, OPTAB_DIRECT);
else
product = expand_binop (mode, smul_widen_optab, op0_low, op1_low,
target, 1, OPTAB_DIRECT);
if (!product)
return NULL_RTX;
product_high = operand_subword (product, high, 1, mode);
adjust = expand_binop (word_mode, add_optab, product_high, adjust,
REG_P (product_high) ? product_high : adjust,
0, OPTAB_DIRECT);
emit_move_insn (product_high, adjust);
return product;
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
/* Wrapper around expand_binop which takes an rtx code to specify
the operation to perform, not an optab pointer. All other
arguments are the same. */
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_simple_binop (enum machine_mode mode, enum rtx_code code, rtx op0,
rtx op1, rtx target, int unsignedp,
enum optab_methods methods)
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
optab binop = code_to_optab[(int) code];
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (binop);
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 expand_binop (mode, binop, op0, op1, target, unsignedp, methods);
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Return whether OP0 and OP1 should be swapped when expanding a commutative
binop. Order them according to commutative_operand_precedence and, if
possible, try to put TARGET or a pseudo first. */
static bool
swap_commutative_operands_with_target (rtx target, rtx op0, rtx op1)
{
int op0_prec = commutative_operand_precedence (op0);
int op1_prec = commutative_operand_precedence (op1);
if (op0_prec < op1_prec)
return true;
if (op0_prec > op1_prec)
return false;
/* With equal precedence, both orders are ok, but it is better if the
first operand is TARGET, or if both TARGET and OP0 are pseudos. */
if (target == 0 || REG_P (target))
return (REG_P (op1) && !REG_P (op0)) || target == op1;
else
return rtx_equal_p (op1, target);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 code to perform an operation specified by BINOPTAB
on operands OP0 and OP1, with result having machine-mode MODE.
UNSIGNEDP is for the case where we have to widen the operands
to perform the operation. It says to use zero-extension.
If TARGET is nonzero, the value
is generated there, if it is convenient to do so.
In all cases an rtx is returned for the locus of the value;
this may or may not be TARGET. */
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_binop (enum machine_mode mode, optab binoptab, rtx op0, rtx op1,
rtx target, int unsignedp, enum optab_methods methods)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 optab_methods next_methods
= (methods == OPTAB_LIB || methods == OPTAB_LIB_WIDEN
? OPTAB_WIDEN : methods);
enum mode_class class;
enum machine_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
rtx temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 commutative_op = 0;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
int shift_op = (binoptab->code == ASHIFT
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
|| binoptab->code == ASHIFTRT
|| binoptab->code == LSHIFTRT
|| binoptab->code == ROTATE
|| binoptab->code == ROTATERT);
rtx entry_last = get_last_insn ();
rtx last;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
bool first_pass_p = true;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
class = GET_MODE_CLASS (mode);
/* If subtracting an integer constant, convert this into an addition of
the negated constant. */
if (binoptab == sub_optab && GET_CODE (op1) == CONST_INT)
{
op1 = negate_rtx (mode, op1);
binoptab = add_optab;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If we are inside an appropriately-short loop and we are optimizing,
force expensive constants into a register. */
if (CONSTANT_P (op0) && optimize
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_cost (op0, binoptab->code) > COSTS_N_INSNS (1))
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
{
if (GET_MODE (op0) != VOIDmode)
op0 = convert_modes (mode, VOIDmode, op0, unsignedp);
op0 = force_reg (mode, op0);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (CONSTANT_P (op1) && optimize
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_op && rtx_cost (op1, binoptab->code) > COSTS_N_INSNS (1))
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
{
if (GET_MODE (op1) != VOIDmode)
op1 = convert_modes (mode, VOIDmode, op1, unsignedp);
op1 = force_reg (mode, op1);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Record where to delete back to if we backtrack. */
last = get_last_insn ();
/* If operation is commutative,
try to make the first operand a register.
Even better, try to make it the same as the target.
Also try to make the last operand a constant. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (GET_RTX_CLASS (binoptab->code) == RTX_COMM_ARITH
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
|| binoptab == smul_widen_optab
|| binoptab == umul_widen_optab
|| binoptab == smul_highpart_optab
|| binoptab == umul_highpart_optab)
{
commutative_op = 1;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (swap_commutative_operands_with_target (target, op0, op1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
temp = op1;
op1 = op0;
op0 = temp;
}
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
retry:
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If we can do it with a three-operand insn, do so. */
if (methods != OPTAB_MUST_WIDEN
&& binoptab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
{
int icode = (int) binoptab->handlers[(int) mode].insn_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
enum machine_mode mode0 = insn_data[icode].operand[1].mode;
enum machine_mode mode1 = insn_data[icode].operand[2].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
rtx pat;
rtx xop0 = op0, xop1 = op1;
if (target)
temp = target;
else
temp = gen_reg_rtx (mode);
/* If it is a commutative operator and the modes would match
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if we would swap the operands, we can save the 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
if (commutative_op)
{
if (GET_MODE (op0) != mode0 && GET_MODE (op1) != mode1
&& GET_MODE (op0) == mode1 && GET_MODE (op1) == mode0)
{
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 tmp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tmp = op0; op0 = op1; op1 = tmp;
tmp = xop0; xop0 = xop1; xop1 = tmp;
}
}
/* In case the insn wants input operands in modes different from
Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on 16-Sep-2002 13:23:11 EDT.
2002-09-17 04:03:37 +00:00
those of the actual operands, convert the operands. It would
seem that we don't need to convert CONST_INTs, but we do, so
Gcc 3.2.2-release.
2003-02-10 05:41:50 +00:00
that they're properly zero-extended, sign-extended or truncated
for their 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
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (GET_MODE (op0) != mode0 && mode0 != 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
xop0 = convert_modes (mode0,
GET_MODE (op0) != VOIDmode
? GET_MODE (op0)
Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on 16-Sep-2002 13:23:11 EDT.
2002-09-17 04:03:37 +00:00
: 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
xop0, unsignedp);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (GET_MODE (op1) != mode1 && mode1 != 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
xop1 = convert_modes (mode1,
GET_MODE (op1) != VOIDmode
? GET_MODE (op1)
Gcc 3.2.2-release.
2003-02-10 05:41:50 +00:00
: 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
xop1, 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
/* Now, if insn's predicates don't allow our operands, put them into
pseudo regs. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!insn_data[icode].operand[1].predicate (xop0, mode0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& mode0 != VOIDmode)
xop0 = copy_to_mode_reg (mode0, xop0);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!insn_data[icode].operand[2].predicate (xop1, mode1)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& mode1 != VOIDmode)
xop1 = copy_to_mode_reg (mode1, xop1);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!insn_data[icode].operand[0].predicate (temp, 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
temp = gen_reg_rtx (mode);
pat = GEN_FCN (icode) (temp, xop0, xop1);
if (pat)
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
/* If PAT is composed of more than one insn, try to add an appropriate
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
REG_EQUAL note to it. If we can't because TEMP conflicts with an
operand, call ourselves again, this time without a target. */
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (INSN_P (pat) && NEXT_INSN (pat) != 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
&& ! add_equal_note (pat, temp, binoptab->code, xop0, xop1))
{
delete_insns_since (last);
return expand_binop (mode, binoptab, op0, op1, NULL_RTX,
unsignedp, methods);
}
emit_insn (pat);
return temp;
}
else
delete_insns_since (last);
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If we were trying to rotate by a constant value, and that didn't
work, try rotating the other direction before falling back to
shifts and bitwise-or. */
if (first_pass_p
&& (binoptab == rotl_optab || binoptab == rotr_optab)
&& class == MODE_INT
&& GET_CODE (op1) == CONST_INT
&& INTVAL (op1) > 0
&& (unsigned int) INTVAL (op1) < GET_MODE_BITSIZE (mode))
{
first_pass_p = false;
op1 = GEN_INT (GET_MODE_BITSIZE (mode) - INTVAL (op1));
binoptab = binoptab == rotl_optab ? rotr_optab : rotl_optab;
goto retry;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 this is a multiply, see if we can do a widening operation that
takes operands of this mode and makes a wider mode. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (binoptab == smul_optab
&& GET_MODE_WIDER_MODE (mode) != VOIDmode
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& (((unsignedp ? umul_widen_optab : smul_widen_optab)
->handlers[(int) GET_MODE_WIDER_MODE (mode)].insn_code)
!= CODE_FOR_nothing))
{
temp = expand_binop (GET_MODE_WIDER_MODE (mode),
unsignedp ? umul_widen_optab : smul_widen_optab,
op0, op1, NULL_RTX, unsignedp, OPTAB_DIRECT);
if (temp != 0)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (GET_MODE_CLASS (mode) == MODE_INT
&& TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (mode),
GET_MODE_BITSIZE (GET_MODE (temp))))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 gen_lowpart (mode, temp);
else
return convert_to_mode (mode, temp, unsignedp);
}
}
/* Look for a wider mode of the same class for which we think we
can open-code the operation. Check for a widening multiply at the
wider mode as well. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (CLASS_HAS_WIDER_MODES_P (class)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& methods != OPTAB_DIRECT && methods != OPTAB_LIB)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
for (wider_mode = GET_MODE_WIDER_MODE (mode);
wider_mode != VOIDmode;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
wider_mode = GET_MODE_WIDER_MODE (wider_mode))
{
if (binoptab->handlers[(int) wider_mode].insn_code != CODE_FOR_nothing
|| (binoptab == smul_optab
&& GET_MODE_WIDER_MODE (wider_mode) != VOIDmode
&& (((unsignedp ? umul_widen_optab : smul_widen_optab)
->handlers[(int) GET_MODE_WIDER_MODE (wider_mode)].insn_code)
!= CODE_FOR_nothing)))
{
rtx xop0 = op0, xop1 = op1;
int no_extend = 0;
/* For certain integer operations, we need not actually extend
the narrow operands, as long as we will truncate
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
the results to the same narrowness. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 ((binoptab == ior_optab || binoptab == and_optab
|| binoptab == xor_optab
|| binoptab == add_optab || binoptab == sub_optab
|| binoptab == smul_optab || binoptab == ashl_optab)
&& class == MODE_INT)
no_extend = 1;
xop0 = widen_operand (xop0, wider_mode, mode, unsignedp, no_extend);
/* The second operand of a shift must always be extended. */
xop1 = widen_operand (xop1, wider_mode, mode, unsignedp,
no_extend && binoptab != ashl_optab);
temp = expand_binop (wider_mode, binoptab, xop0, xop1, NULL_RTX,
unsignedp, OPTAB_DIRECT);
if (temp)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (class != MODE_INT
|| !TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (mode),
GET_MODE_BITSIZE (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
{
if (target == 0)
target = gen_reg_rtx (mode);
convert_move (target, temp, 0);
return target;
}
else
return gen_lowpart (mode, temp);
}
else
delete_insns_since (last);
}
}
/* These can be done a word at a time. */
if ((binoptab == and_optab || binoptab == ior_optab || binoptab == xor_optab)
&& class == MODE_INT
&& GET_MODE_SIZE (mode) > UNITS_PER_WORD
&& binoptab->handlers[(int) word_mode].insn_code != CODE_FOR_nothing)
{
int i;
rtx insns;
rtx equiv_value;
/* If TARGET is the same as one of the operands, the REG_EQUAL note
won't be accurate, so use a new target. */
if (target == 0 || target == op0 || target == op1)
target = gen_reg_rtx (mode);
start_sequence ();
/* Do the actual arithmetic. */
for (i = 0; i < GET_MODE_BITSIZE (mode) / BITS_PER_WORD; i++)
{
rtx target_piece = operand_subword (target, i, 1, mode);
rtx x = expand_binop (word_mode, binoptab,
operand_subword_force (op0, i, mode),
operand_subword_force (op1, i, mode),
target_piece, unsignedp, next_methods);
if (x == 0)
break;
if (target_piece != x)
emit_move_insn (target_piece, x);
}
insns = get_insns ();
end_sequence ();
if (i == GET_MODE_BITSIZE (mode) / BITS_PER_WORD)
{
if (binoptab->code != UNKNOWN)
equiv_value
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
= gen_rtx_fmt_ee (binoptab->code, mode,
copy_rtx (op0), copy_rtx (op1));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
equiv_value = 0;
emit_no_conflict_block (insns, target, op0, op1, equiv_value);
return target;
}
}
/* Synthesize double word shifts from single word shifts. */
if ((binoptab == lshr_optab || binoptab == ashl_optab
|| binoptab == ashr_optab)
&& class == MODE_INT
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
&& (GET_CODE (op1) == CONST_INT || !optimize_size)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& GET_MODE_SIZE (mode) == 2 * UNITS_PER_WORD
&& binoptab->handlers[(int) word_mode].insn_code != CODE_FOR_nothing
&& ashl_optab->handlers[(int) word_mode].insn_code != CODE_FOR_nothing
&& lshr_optab->handlers[(int) word_mode].insn_code != CODE_FOR_nothing)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
unsigned HOST_WIDE_INT shift_mask, double_shift_mask;
enum machine_mode op1_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 4.2.0 release.
2007-05-19 01:19:51 +00:00
double_shift_mask = targetm.shift_truncation_mask (mode);
shift_mask = targetm.shift_truncation_mask (word_mode);
op1_mode = GET_MODE (op1) != VOIDmode ? GET_MODE (op1) : 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Apply the truncation to constant shifts. */
if (double_shift_mask > 0 && GET_CODE (op1) == CONST_INT)
op1 = GEN_INT (INTVAL (op1) & double_shift_mask);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (op1 == CONST0_RTX (op1_mode))
return op0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
/* Make sure that this is a combination that expand_doubleword_shift
can handle. See the comments there for details. */
if (double_shift_mask == 0
|| (shift_mask == BITS_PER_WORD - 1
&& double_shift_mask == BITS_PER_WORD * 2 - 1))
{
rtx insns, equiv_value;
rtx into_target, outof_target;
rtx into_input, outof_input;
int left_shift, outof_word;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If TARGET is the same as one of the operands, the REG_EQUAL note
won't be accurate, so use a new target. */
if (target == 0 || target == op0 || target == op1)
target = gen_reg_rtx (mode);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
start_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* OUTOF_* is the word we are shifting bits away from, and
INTO_* is the word that we are shifting bits towards, thus
they differ depending on the direction of the shift and
WORDS_BIG_ENDIAN. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
left_shift = binoptab == ashl_optab;
outof_word = left_shift ^ ! WORDS_BIG_ENDIAN;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
outof_target = operand_subword (target, outof_word, 1, mode);
into_target = operand_subword (target, 1 - outof_word, 1, 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
outof_input = operand_subword_force (op0, outof_word, mode);
into_input = operand_subword_force (op0, 1 - outof_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 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (expand_doubleword_shift (op1_mode, binoptab,
outof_input, into_input, op1,
outof_target, into_target,
unsignedp, next_methods, shift_mask))
{
insns = get_insns ();
end_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
equiv_value = gen_rtx_fmt_ee (binoptab->code, mode, op0, op1);
emit_no_conflict_block (insns, target, op0, op1, equiv_value);
return target;
}
end_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
/* Synthesize double word rotates from single word shifts. */
if ((binoptab == rotl_optab || binoptab == rotr_optab)
&& class == MODE_INT
&& GET_CODE (op1) == CONST_INT
&& GET_MODE_SIZE (mode) == 2 * UNITS_PER_WORD
&& ashl_optab->handlers[(int) word_mode].insn_code != CODE_FOR_nothing
&& lshr_optab->handlers[(int) word_mode].insn_code != CODE_FOR_nothing)
{
Gcc 3.4.6 as of 2006/08/25 #116475.
2006-08-26 21:29:10 +00:00
rtx insns;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
rtx into_target, outof_target;
rtx into_input, outof_input;
rtx inter;
int shift_count, left_shift, outof_word;
/* If TARGET is the same as one of the operands, the REG_EQUAL note
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
won't be accurate, so use a new target. Do this also if target is not
a REG, first because having a register instead may open optimization
opportunities, and second because if target and op0 happen to be MEMs
designating the same location, we would risk clobbering it too early
in the code sequence we generate below. */
if (target == 0 || target == op0 || target == op1 || ! REG_P (target))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
target = gen_reg_rtx (mode);
start_sequence ();
shift_count = INTVAL (op1);
/* OUTOF_* is the word we are shifting bits away from, and
INTO_* is the word that we are shifting bits towards, thus
they differ depending on the direction of the shift and
WORDS_BIG_ENDIAN. */
left_shift = (binoptab == rotl_optab);
outof_word = left_shift ^ ! WORDS_BIG_ENDIAN;
outof_target = operand_subword (target, outof_word, 1, mode);
into_target = operand_subword (target, 1 - outof_word, 1, mode);
outof_input = operand_subword_force (op0, outof_word, mode);
into_input = operand_subword_force (op0, 1 - outof_word, mode);
if (shift_count == BITS_PER_WORD)
{
/* This is just a word swap. */
emit_move_insn (outof_target, into_input);
emit_move_insn (into_target, outof_input);
inter = const0_rtx;
}
else
{
rtx into_temp1, into_temp2, outof_temp1, outof_temp2;
rtx first_shift_count, second_shift_count;
optab reverse_unsigned_shift, unsigned_shift;
reverse_unsigned_shift = (left_shift ^ (shift_count < BITS_PER_WORD)
? lshr_optab : ashl_optab);
unsigned_shift = (left_shift ^ (shift_count < BITS_PER_WORD)
? ashl_optab : lshr_optab);
if (shift_count > BITS_PER_WORD)
{
first_shift_count = GEN_INT (shift_count - BITS_PER_WORD);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
second_shift_count = GEN_INT (2 * BITS_PER_WORD - shift_count);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
{
first_shift_count = GEN_INT (BITS_PER_WORD - shift_count);
second_shift_count = GEN_INT (shift_count);
}
into_temp1 = expand_binop (word_mode, unsigned_shift,
outof_input, first_shift_count,
NULL_RTX, unsignedp, next_methods);
into_temp2 = expand_binop (word_mode, reverse_unsigned_shift,
into_input, second_shift_count,
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
NULL_RTX, unsignedp, next_methods);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (into_temp1 != 0 && into_temp2 != 0)
inter = expand_binop (word_mode, ior_optab, into_temp1, into_temp2,
into_target, unsignedp, next_methods);
else
inter = 0;
if (inter != 0 && inter != into_target)
emit_move_insn (into_target, inter);
outof_temp1 = expand_binop (word_mode, unsigned_shift,
into_input, first_shift_count,
NULL_RTX, unsignedp, next_methods);
outof_temp2 = expand_binop (word_mode, reverse_unsigned_shift,
outof_input, second_shift_count,
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
NULL_RTX, unsignedp, next_methods);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (inter != 0 && outof_temp1 != 0 && outof_temp2 != 0)
inter = expand_binop (word_mode, ior_optab,
outof_temp1, outof_temp2,
outof_target, unsignedp, next_methods);
if (inter != 0 && inter != outof_target)
emit_move_insn (outof_target, inter);
}
insns = get_insns ();
end_sequence ();
if (inter != 0)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* One may be tempted to wrap the insns in a REG_NO_CONFLICT
block to help the register allocator a bit. But a multi-word
rotate will need all the input bits when setting the output
bits, so there clearly is a conflict between the input and
output registers. So we can't use a no-conflict block here. */
Gcc 3.4.6 as of 2006/08/25 #116475.
2006-08-26 21:29:10 +00:00
emit_insn (insns);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return target;
}
}
/* These can be done a word at a time by propagating carries. */
if ((binoptab == add_optab || binoptab == sub_optab)
&& class == MODE_INT
&& GET_MODE_SIZE (mode) >= 2 * UNITS_PER_WORD
&& binoptab->handlers[(int) word_mode].insn_code != CODE_FOR_nothing)
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
unsigned 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
optab otheroptab = binoptab == add_optab ? sub_optab : add_optab;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
const unsigned int nwords = GET_MODE_BITSIZE (mode) / BITS_PER_WORD;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
rtx carry_in = NULL_RTX, carry_out = NULL_RTX;
Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on 1-Sep-2002 00:00:01 EDT.
2002-09-01 20:38:57 +00:00
rtx xop0, xop1, xtarget;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 handle either a 1 or -1 value for the carry. If STORE_FLAG
value is one of those, use it. Otherwise, use 1 since it is the
one easiest to get. */
#if STORE_FLAG_VALUE == 1 || STORE_FLAG_VALUE == -1
int normalizep = STORE_FLAG_VALUE;
#else
int normalizep = 1;
#endif
/* Prepare the operands. */
xop0 = force_reg (mode, op0);
xop1 = force_reg (mode, op1);
Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on 1-Sep-2002 00:00:01 EDT.
2002-09-01 20:38:57 +00:00
xtarget = gen_reg_rtx (mode);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (target == 0 || !REG_P (target))
Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on 1-Sep-2002 00:00:01 EDT.
2002-09-01 20:38:57 +00:00
target = xtarget;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Indicate for flow that the entire target reg is being set. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (REG_P (target))
Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on 1-Sep-2002 00:00:01 EDT.
2002-09-01 20:38:57 +00:00
emit_insn (gen_rtx_CLOBBER (VOIDmode, xtarget));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 the actual arithmetic. */
for (i = 0; i < nwords; i++)
{
int index = (WORDS_BIG_ENDIAN ? nwords - i - 1 : i);
Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on 1-Sep-2002 00:00:01 EDT.
2002-09-01 20:38:57 +00:00
rtx target_piece = operand_subword (xtarget, index, 1, 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
rtx op0_piece = operand_subword_force (xop0, index, mode);
rtx op1_piece = operand_subword_force (xop1, index, mode);
rtx x;
/* Main add/subtract of the input operands. */
x = expand_binop (word_mode, binoptab,
op0_piece, op1_piece,
target_piece, unsignedp, next_methods);
if (x == 0)
break;
if (i + 1 < nwords)
{
/* Store carry from main add/subtract. */
carry_out = gen_reg_rtx (word_mode);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
carry_out = emit_store_flag_force (carry_out,
(binoptab == add_optab
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
? LT : GT),
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
x, op0_piece,
word_mode, 1, normalizep);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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)
{
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 newx;
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
/* Add/subtract previous carry to main result. */
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
newx = expand_binop (word_mode,
normalizep == 1 ? binoptab : otheroptab,
x, carry_in,
NULL_RTX, 1, next_methods);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 + 1 < nwords)
{
/* Get out carry from adding/subtracting carry in. */
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 carry_tmp = gen_reg_rtx (word_mode);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
carry_tmp = emit_store_flag_force (carry_tmp,
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
(binoptab == add_optab
? LT : GT),
newx, x,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
word_mode, 1, normalizep);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Logical-ior the two poss. carry together. */
carry_out = expand_binop (word_mode, ior_optab,
carry_out, carry_tmp,
carry_out, 0, next_methods);
if (carry_out == 0)
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
emit_move_insn (target_piece, newx);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (x != target_piece)
emit_move_insn (target_piece, 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
carry_in = carry_out;
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
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (i == GET_MODE_BITSIZE (mode) / (unsigned) BITS_PER_WORD)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (mov_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing
|| ! rtx_equal_p (target, xtarget))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on 1-Sep-2002 00:00:01 EDT.
2002-09-01 20:38:57 +00:00
rtx temp = emit_move_insn (target, xtarget);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
set_unique_reg_note (temp,
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
REG_EQUAL,
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
gen_rtx_fmt_ee (binoptab->code, mode,
copy_rtx (xop0),
copy_rtx (xop1)));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
else
target = xtarget;
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
return target;
}
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
delete_insns_since (last);
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Attempt to synthesize double word multiplies using a sequence of word
mode multiplications. We first attempt to generate a sequence using a
more efficient unsigned widening multiply, and if that fails we then
try using a signed widening multiply. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (binoptab == smul_optab
&& class == MODE_INT
&& GET_MODE_SIZE (mode) == 2 * UNITS_PER_WORD
&& smul_optab->handlers[(int) word_mode].insn_code != CODE_FOR_nothing
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
&& add_optab->handlers[(int) word_mode].insn_code != CODE_FOR_nothing)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 product = 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
if (umul_widen_optab->handlers[(int) mode].insn_code
!= CODE_FOR_nothing)
{
product = expand_doubleword_mult (mode, op0, op1, target,
true, methods);
if (!product)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
delete_insns_since (last);
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (product == 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
&& smul_widen_optab->handlers[(int) mode].insn_code
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
!= CODE_FOR_nothing)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
product = expand_doubleword_mult (mode, op0, op1, target,
false, methods);
if (!product)
delete_insns_since (last);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (product != 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
if (mov_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
temp = emit_move_insn (target ? target : product, product);
set_unique_reg_note (temp,
REG_EQUAL,
gen_rtx_fmt_ee (MULT, mode,
copy_rtx (op0),
copy_rtx (op1)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
return product;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
/* It can't be open-coded in this mode.
Use a library call if one is available and caller says that's ok. */
if (binoptab->handlers[(int) mode].libfunc
&& (methods == OPTAB_LIB || methods == OPTAB_LIB_WIDEN))
{
rtx insns;
rtx op1x = op1;
enum machine_mode op1_mode = mode;
rtx value;
start_sequence ();
if (shift_op)
{
op1_mode = word_mode;
/* Specify unsigned here,
since negative shift counts are meaningless. */
op1x = convert_to_mode (word_mode, op1, 1);
}
if (GET_MODE (op0) != VOIDmode
&& GET_MODE (op0) != mode)
op0 = convert_to_mode (mode, op0, unsignedp);
/* Pass 1 for NO_QUEUE so we don't lose any increments
if the libcall is cse'd or moved. */
value = emit_library_call_value (binoptab->handlers[(int) mode].libfunc,
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
NULL_RTX, LCT_CONST, mode, 2,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
op0, mode, op1x, op1_mode);
insns = get_insns ();
end_sequence ();
target = gen_reg_rtx (mode);
emit_libcall_block (insns, target, value,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
gen_rtx_fmt_ee (binoptab->code, mode, op0, op1));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 target;
}
delete_insns_since (last);
/* It can't be done in this mode. Can we do it in a wider mode? */
if (! (methods == OPTAB_WIDEN || methods == OPTAB_LIB_WIDEN
|| methods == OPTAB_MUST_WIDEN))
{
/* Caller says, don't even try. */
delete_insns_since (entry_last);
return 0;
}
/* Compute the value of METHODS to pass to recursive calls.
Don't allow widening to be tried recursively. */
methods = (methods == OPTAB_LIB_WIDEN ? OPTAB_LIB : OPTAB_DIRECT);
/* Look for a wider mode of the same class for which it appears we can do
the operation. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (CLASS_HAS_WIDER_MODES_P (class))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (wider_mode = GET_MODE_WIDER_MODE (mode);
wider_mode != VOIDmode;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
wider_mode = GET_MODE_WIDER_MODE (wider_mode))
{
if ((binoptab->handlers[(int) wider_mode].insn_code
!= CODE_FOR_nothing)
|| (methods == OPTAB_LIB
&& binoptab->handlers[(int) wider_mode].libfunc))
{
rtx xop0 = op0, xop1 = op1;
int no_extend = 0;
/* For certain integer operations, we need not actually extend
the narrow operands, as long as we will truncate
the results to the same narrowness. */
if ((binoptab == ior_optab || binoptab == and_optab
|| binoptab == xor_optab
|| binoptab == add_optab || binoptab == sub_optab
|| binoptab == smul_optab || binoptab == ashl_optab)
&& class == MODE_INT)
no_extend = 1;
xop0 = widen_operand (xop0, wider_mode, mode,
unsignedp, no_extend);
/* The second operand of a shift must always be extended. */
xop1 = widen_operand (xop1, wider_mode, mode, unsignedp,
no_extend && binoptab != ashl_optab);
temp = expand_binop (wider_mode, binoptab, xop0, xop1, NULL_RTX,
unsignedp, methods);
if (temp)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (class != MODE_INT
|| !TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (mode),
GET_MODE_BITSIZE (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
{
if (target == 0)
target = gen_reg_rtx (mode);
convert_move (target, temp, 0);
return target;
}
else
return gen_lowpart (mode, temp);
}
else
delete_insns_since (last);
}
}
}
delete_insns_since (entry_last);
return 0;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Expand a binary operator which has both signed and unsigned forms.
UOPTAB is the optab for unsigned operations, and SOPTAB is for
signed operations.
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 we widen unsigned operands, we may use a signed wider operation instead
of an unsigned wider operation, since the result would be the same. */
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
rtx
sign_expand_binop (enum machine_mode mode, optab uoptab, optab soptab,
rtx op0, rtx op1, rtx target, int unsignedp,
enum optab_methods methods)
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
rtx temp;
optab direct_optab = unsignedp ? uoptab : soptab;
struct optab wide_soptab;
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
/* Do it without widening, if possible. */
temp = expand_binop (mode, direct_optab, op0, op1, target,
unsignedp, OPTAB_DIRECT);
if (temp || methods == OPTAB_DIRECT)
return temp;
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
/* Try widening to a signed int. Make a fake signed optab that
hides any signed insn for direct use. */
wide_soptab = *soptab;
wide_soptab.handlers[(int) mode].insn_code = CODE_FOR_nothing;
wide_soptab.handlers[(int) mode].libfunc = 0;
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
temp = expand_binop (mode, &wide_soptab, op0, op1, target,
unsignedp, OPTAB_WIDEN);
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
/* For unsigned operands, try widening to an unsigned int. */
if (temp == 0 && unsignedp)
temp = expand_binop (mode, uoptab, op0, op1, target,
unsignedp, OPTAB_WIDEN);
if (temp || methods == OPTAB_WIDEN)
return temp;
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
/* Use the right width lib call if that exists. */
temp = expand_binop (mode, direct_optab, op0, op1, target, unsignedp, OPTAB_LIB);
if (temp || methods == OPTAB_LIB)
return temp;
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
/* Must widen and use a lib call, use either signed or unsigned. */
temp = expand_binop (mode, &wide_soptab, op0, op1, target,
unsignedp, methods);
if (temp != 0)
return temp;
if (unsignedp)
return expand_binop (mode, uoptab, op0, op1, target,
unsignedp, methods);
return 0;
}
/* Generate code to perform an operation specified by UNOPPTAB
on operand OP0, with two results to TARG0 and TARG1.
We assume that the order of the operands for the instruction
is TARG0, TARG1, OP0.
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
Either TARG0 or TARG1 may be zero, but what that means is that
the result is not actually wanted. We will generate it into
a dummy pseudo-reg and discard it. They may not both be zero.
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
Returns 1 if this operation can be performed; 0 if not. */
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
int
expand_twoval_unop (optab unoptab, rtx op0, rtx targ0, rtx targ1,
int unsignedp)
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
enum machine_mode mode = GET_MODE (targ0 ? targ0 : targ1);
enum mode_class class;
enum machine_mode wider_mode;
rtx entry_last = get_last_insn ();
rtx last;
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
class = GET_MODE_CLASS (mode);
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 (!targ0)
targ0 = gen_reg_rtx (mode);
if (!targ1)
targ1 = gen_reg_rtx (mode);
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
/* Record where to go back to if we fail. */
last = get_last_insn ();
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 (unoptab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
{
int icode = (int) unoptab->handlers[(int) mode].insn_code;
enum machine_mode mode0 = insn_data[icode].operand[2].mode;
rtx pat;
rtx xop0 = op0;
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 (GET_MODE (xop0) != VOIDmode
&& GET_MODE (xop0) != mode0)
xop0 = convert_to_mode (mode0, xop0, unsignedp);
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
/* Now, if insn doesn't accept these operands, put them into pseudos. */
if (!insn_data[icode].operand[2].predicate (xop0, mode0))
xop0 = copy_to_mode_reg (mode0, xop0);
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
/* We could handle this, but we should always be called with a pseudo
for our targets and all insns should take them as outputs. */
gcc_assert (insn_data[icode].operand[0].predicate (targ0, mode));
gcc_assert (insn_data[icode].operand[1].predicate (targ1, mode));
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
pat = GEN_FCN (icode) (targ0, targ1, xop0);
if (pat)
{
emit_insn (pat);
return 1;
}
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
else
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
delete_insns_since (last);
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
/* It can't be done in this mode. Can we do it in a wider mode? */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (CLASS_HAS_WIDER_MODES_P (class))
{
for (wider_mode = GET_MODE_WIDER_MODE (mode);
wider_mode != VOIDmode;
wider_mode = GET_MODE_WIDER_MODE (wider_mode))
{
if (unoptab->handlers[(int) wider_mode].insn_code
!= CODE_FOR_nothing)
{
rtx t0 = gen_reg_rtx (wider_mode);
rtx t1 = gen_reg_rtx (wider_mode);
rtx cop0 = convert_modes (wider_mode, mode, op0, 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
if (expand_twoval_unop (unoptab, cop0, t0, t1, unsignedp))
{
convert_move (targ0, t0, unsignedp);
convert_move (targ1, t1, unsignedp);
return 1;
}
else
delete_insns_since (last);
}
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
delete_insns_since (entry_last);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return 0;
}
/* Generate code to perform an operation specified by BINOPTAB
on operands OP0 and OP1, with two results to TARG1 and TARG2.
We assume that the order of the operands for the instruction
is TARG0, OP0, OP1, TARG1, which would fit a pattern like
[(set TARG0 (operate OP0 OP1)) (set TARG1 (operate ...))].
Either TARG0 or TARG1 may be zero, but what that means is that
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
the result is not actually wanted. We will generate it into
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
a dummy pseudo-reg and discard it. They may not both be zero.
Returns 1 if this operation can be performed; 0 if not. */
int
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_twoval_binop (optab binoptab, rtx op0, rtx op1, rtx targ0, rtx targ1,
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
{
enum machine_mode mode = GET_MODE (targ0 ? targ0 : targ1);
enum mode_class class;
enum machine_mode wider_mode;
rtx entry_last = get_last_insn ();
rtx last;
class = GET_MODE_CLASS (mode);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If we are inside an appropriately-short loop and we are optimizing,
force expensive constants into a register. */
if (CONSTANT_P (op0) && optimize
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_cost (op0, binoptab->code) > COSTS_N_INSNS (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
op0 = force_reg (mode, op0);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (CONSTANT_P (op1) && optimize
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_cost (op1, binoptab->code) > COSTS_N_INSNS (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
op1 = force_reg (mode, op1);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!targ0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
targ0 = gen_reg_rtx (mode);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!targ1)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
targ1 = gen_reg_rtx (mode);
/* Record where to go back to if we fail. */
last = get_last_insn ();
if (binoptab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
{
int icode = (int) binoptab->handlers[(int) mode].insn_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
enum machine_mode mode0 = insn_data[icode].operand[1].mode;
enum machine_mode mode1 = insn_data[icode].operand[2].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
rtx pat;
rtx xop0 = op0, xop1 = op1;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
/* In case the insn wants input operands in modes different from
those of the actual operands, convert the operands. It would
seem that we don't need to convert CONST_INTs, but we do, so
that they're properly zero-extended, sign-extended or truncated
for their 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 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (GET_MODE (op0) != mode0 && mode0 != VOIDmode)
xop0 = convert_modes (mode0,
GET_MODE (op0) != VOIDmode
? GET_MODE (op0)
: mode,
xop0, unsignedp);
if (GET_MODE (op1) != mode1 && mode1 != VOIDmode)
xop1 = convert_modes (mode1,
GET_MODE (op1) != VOIDmode
? GET_MODE (op1)
: mode,
xop1, 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
/* Now, if insn doesn't accept these operands, put them into pseudos. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!insn_data[icode].operand[1].predicate (xop0, mode0))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
xop0 = copy_to_mode_reg (mode0, xop0);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!insn_data[icode].operand[2].predicate (xop1, mode1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
xop1 = copy_to_mode_reg (mode1, xop1);
/* We could handle this, but we should always be called with a pseudo
for our targets and all insns should take them as outputs. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (insn_data[icode].operand[0].predicate (targ0, mode));
gcc_assert (insn_data[icode].operand[3].predicate (targ1, mode));
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
pat = GEN_FCN (icode) (targ0, xop0, xop1, targ1);
if (pat)
{
emit_insn (pat);
return 1;
}
else
delete_insns_since (last);
}
/* It can't be done in this mode. Can we do it in a wider mode? */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (CLASS_HAS_WIDER_MODES_P (class))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (wider_mode = GET_MODE_WIDER_MODE (mode);
wider_mode != VOIDmode;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
wider_mode = GET_MODE_WIDER_MODE (wider_mode))
{
if (binoptab->handlers[(int) wider_mode].insn_code
!= CODE_FOR_nothing)
{
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 t0 = gen_reg_rtx (wider_mode);
rtx t1 = gen_reg_rtx (wider_mode);
rtx cop0 = convert_modes (wider_mode, mode, op0, unsignedp);
rtx cop1 = convert_modes (wider_mode, mode, op1, unsignedp);
if (expand_twoval_binop (binoptab, cop0, cop1,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
t0, t1, unsignedp))
{
convert_move (targ0, t0, unsignedp);
convert_move (targ1, t1, unsignedp);
return 1;
}
else
delete_insns_since (last);
}
}
}
delete_insns_since (entry_last);
return 0;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Expand the two-valued library call indicated by BINOPTAB, but
preserve only one of the values. If TARG0 is non-NULL, the first
value is placed into TARG0; otherwise the second value is placed
into TARG1. Exactly one of TARG0 and TARG1 must be non-NULL. The
value stored into TARG0 or TARG1 is equivalent to (CODE OP0 OP1).
This routine assumes that the value returned by the library call is
as if the return value was of an integral mode twice as wide as the
mode of OP0. Returns 1 if the call was successful. */
bool
expand_twoval_binop_libfunc (optab binoptab, rtx op0, rtx op1,
rtx targ0, rtx targ1, enum rtx_code code)
{
enum machine_mode mode;
enum machine_mode libval_mode;
rtx libval;
rtx insns;
/* Exactly one of TARG0 or TARG1 should be non-NULL. */
gcc_assert (!targ0 != !targ1);
mode = GET_MODE (op0);
if (!binoptab->handlers[(int) mode].libfunc)
return false;
/* The value returned by the library function will have twice as
many bits as the nominal MODE. */
libval_mode = smallest_mode_for_size (2 * GET_MODE_BITSIZE (mode),
MODE_INT);
start_sequence ();
libval = emit_library_call_value (binoptab->handlers[(int) mode].libfunc,
NULL_RTX, LCT_CONST,
libval_mode, 2,
op0, mode,
op1, mode);
/* Get the part of VAL containing the value that we want. */
libval = simplify_gen_subreg (mode, libval, libval_mode,
targ0 ? 0 : GET_MODE_SIZE (mode));
insns = get_insns ();
end_sequence ();
/* Move the into the desired location. */
emit_libcall_block (insns, targ0 ? targ0 : targ1, libval,
gen_rtx_fmt_ee (code, mode, op0, op1));
return true;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
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
/* Wrapper around expand_unop which takes an rtx code to specify
the operation to perform, not an optab pointer. All other
arguments are the same. */
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_simple_unop (enum machine_mode mode, enum rtx_code code, rtx op0,
rtx target, int 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
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
optab unop = code_to_optab[(int) code];
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (unop);
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 expand_unop (mode, unop, op0, target, unsignedp);
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Try calculating
(clz:narrow x)
as
(clz:wide (zero_extend:wide x)) - ((width wide) - (width narrow)). */
static rtx
widen_clz (enum machine_mode mode, rtx op0, rtx target)
{
enum mode_class class = GET_MODE_CLASS (mode);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (CLASS_HAS_WIDER_MODES_P (class))
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
{
enum machine_mode wider_mode;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
for (wider_mode = GET_MODE_WIDER_MODE (mode);
wider_mode != VOIDmode;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
wider_mode = GET_MODE_WIDER_MODE (wider_mode))
{
if (clz_optab->handlers[(int) wider_mode].insn_code
!= CODE_FOR_nothing)
{
rtx xop0, temp, last;
last = get_last_insn ();
if (target == 0)
target = gen_reg_rtx (mode);
xop0 = widen_operand (op0, wider_mode, mode, true, false);
temp = expand_unop (wider_mode, clz_optab, xop0, NULL_RTX, true);
if (temp != 0)
temp = expand_binop (wider_mode, sub_optab, temp,
GEN_INT (GET_MODE_BITSIZE (wider_mode)
- GET_MODE_BITSIZE (mode)),
target, true, OPTAB_DIRECT);
if (temp == 0)
delete_insns_since (last);
return temp;
}
}
}
return 0;
}
/* Try calculating (parity x) as (and (popcount x) 1), where
popcount can also be done in a wider mode. */
static rtx
expand_parity (enum machine_mode mode, rtx op0, rtx target)
{
enum mode_class class = GET_MODE_CLASS (mode);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (CLASS_HAS_WIDER_MODES_P (class))
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
{
enum machine_mode wider_mode;
for (wider_mode = mode; wider_mode != VOIDmode;
wider_mode = GET_MODE_WIDER_MODE (wider_mode))
{
if (popcount_optab->handlers[(int) wider_mode].insn_code
!= CODE_FOR_nothing)
{
rtx xop0, temp, last;
last = get_last_insn ();
if (target == 0)
target = gen_reg_rtx (mode);
xop0 = widen_operand (op0, wider_mode, mode, true, false);
temp = expand_unop (wider_mode, popcount_optab, xop0, NULL_RTX,
true);
if (temp != 0)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
temp = expand_binop (wider_mode, and_optab, temp, const1_rtx,
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
target, true, OPTAB_DIRECT);
if (temp == 0)
delete_insns_since (last);
return temp;
}
}
}
return 0;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Extract the OMODE lowpart from VAL, which has IMODE. Under certain
conditions, VAL may already be a SUBREG against which we cannot generate
a further SUBREG. In this case, we expect forcing the value into a
register will work around the situation. */
static rtx
lowpart_subreg_maybe_copy (enum machine_mode omode, rtx val,
enum machine_mode imode)
{
rtx ret;
ret = lowpart_subreg (omode, val, imode);
if (ret == NULL)
{
val = force_reg (imode, val);
ret = lowpart_subreg (omode, val, imode);
gcc_assert (ret != NULL);
}
return ret;
}
/* Expand a floating point absolute value or negation operation via a
logical operation on the sign bit. */
static rtx
expand_absneg_bit (enum rtx_code code, enum machine_mode mode,
rtx op0, rtx target)
{
const struct real_format *fmt;
int bitpos, word, nwords, i;
enum machine_mode imode;
HOST_WIDE_INT hi, lo;
rtx temp, insns;
/* The format has to have a simple sign bit. */
fmt = REAL_MODE_FORMAT (mode);
if (fmt == NULL)
return NULL_RTX;
bitpos = fmt->signbit_rw;
if (bitpos < 0)
return NULL_RTX;
/* Don't create negative zeros if the format doesn't support them. */
if (code == NEG && !fmt->has_signed_zero)
return NULL_RTX;
if (GET_MODE_SIZE (mode) <= UNITS_PER_WORD)
{
imode = int_mode_for_mode (mode);
if (imode == BLKmode)
return NULL_RTX;
word = 0;
nwords = 1;
}
else
{
imode = word_mode;
if (FLOAT_WORDS_BIG_ENDIAN)
word = (GET_MODE_BITSIZE (mode) - bitpos) / BITS_PER_WORD;
else
word = bitpos / BITS_PER_WORD;
bitpos = bitpos % BITS_PER_WORD;
nwords = (GET_MODE_BITSIZE (mode) + BITS_PER_WORD - 1) / BITS_PER_WORD;
}
if (bitpos < HOST_BITS_PER_WIDE_INT)
{
hi = 0;
lo = (HOST_WIDE_INT) 1 << bitpos;
}
else
{
hi = (HOST_WIDE_INT) 1 << (bitpos - HOST_BITS_PER_WIDE_INT);
lo = 0;
}
if (code == ABS)
lo = ~lo, hi = ~hi;
if (target == 0 || target == op0)
target = gen_reg_rtx (mode);
if (nwords > 1)
{
start_sequence ();
for (i = 0; i < nwords; ++i)
{
rtx targ_piece = operand_subword (target, i, 1, mode);
rtx op0_piece = operand_subword_force (op0, i, mode);
if (i == word)
{
temp = expand_binop (imode, code == ABS ? and_optab : xor_optab,
op0_piece,
immed_double_const (lo, hi, imode),
targ_piece, 1, OPTAB_LIB_WIDEN);
if (temp != targ_piece)
emit_move_insn (targ_piece, temp);
}
else
emit_move_insn (targ_piece, op0_piece);
}
insns = get_insns ();
end_sequence ();
temp = gen_rtx_fmt_e (code, mode, copy_rtx (op0));
emit_no_conflict_block (insns, target, op0, NULL_RTX, temp);
}
else
{
temp = expand_binop (imode, code == ABS ? and_optab : xor_optab,
gen_lowpart (imode, op0),
immed_double_const (lo, hi, imode),
gen_lowpart (imode, target), 1, OPTAB_LIB_WIDEN);
target = lowpart_subreg_maybe_copy (mode, temp, imode);
set_unique_reg_note (get_last_insn (), REG_EQUAL,
gen_rtx_fmt_e (code, mode, copy_rtx (op0)));
}
return target;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 code to perform an operation specified by UNOPTAB
on operand OP0, with result having machine-mode MODE.
UNSIGNEDP is for the case where we have to widen the operands
to perform the operation. It says to use zero-extension.
If TARGET is nonzero, the value
is generated there, if it is convenient to do so.
In all cases an rtx is returned for the locus of the value;
this may or may not be TARGET. */
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_unop (enum machine_mode mode, optab unoptab, rtx op0, rtx target,
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
{
enum mode_class class;
enum machine_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
rtx temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 last = get_last_insn ();
rtx pat;
class = GET_MODE_CLASS (mode);
if (unoptab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
{
int icode = (int) unoptab->handlers[(int) mode].insn_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
enum machine_mode mode0 = insn_data[icode].operand[1].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
rtx xop0 = op0;
if (target)
temp = target;
else
temp = gen_reg_rtx (mode);
if (GET_MODE (xop0) != VOIDmode
&& GET_MODE (xop0) != mode0)
xop0 = convert_to_mode (mode0, xop0, unsignedp);
/* Now, if insn doesn't accept our operand, put it into a pseudo. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!insn_data[icode].operand[1].predicate (xop0, mode0))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
xop0 = copy_to_mode_reg (mode0, xop0);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!insn_data[icode].operand[0].predicate (temp, 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
temp = gen_reg_rtx (mode);
pat = GEN_FCN (icode) (temp, xop0);
if (pat)
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (INSN_P (pat) && NEXT_INSN (pat) != 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
&& ! add_equal_note (pat, temp, unoptab->code, xop0, NULL_RTX))
{
delete_insns_since (last);
return expand_unop (mode, unoptab, op0, NULL_RTX, unsignedp);
}
emit_insn (pat);
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 temp;
}
else
delete_insns_since (last);
}
/* It can't be done in this mode. Can we open-code it in a wider mode? */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Widening clz needs special treatment. */
if (unoptab == clz_optab)
{
temp = widen_clz (mode, op0, target);
if (temp)
return temp;
else
goto try_libcall;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (CLASS_HAS_WIDER_MODES_P (class))
for (wider_mode = GET_MODE_WIDER_MODE (mode);
wider_mode != VOIDmode;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
wider_mode = GET_MODE_WIDER_MODE (wider_mode))
{
if (unoptab->handlers[(int) wider_mode].insn_code != CODE_FOR_nothing)
{
rtx xop0 = op0;
/* For certain operations, we need not actually extend
the narrow operand, as long as we will truncate the
results to the same narrowness. */
xop0 = widen_operand (xop0, wider_mode, mode, unsignedp,
(unoptab == neg_optab
|| unoptab == one_cmpl_optab)
&& class == MODE_INT);
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
temp = expand_unop (wider_mode, unoptab, xop0, NULL_RTX,
unsignedp);
if (temp)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (class != MODE_INT
|| !TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (mode),
GET_MODE_BITSIZE (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
{
if (target == 0)
target = gen_reg_rtx (mode);
convert_move (target, temp, 0);
return target;
}
else
return gen_lowpart (mode, temp);
}
else
delete_insns_since (last);
}
}
/* These can be done a word at a time. */
if (unoptab == one_cmpl_optab
&& class == MODE_INT
&& GET_MODE_SIZE (mode) > UNITS_PER_WORD
&& unoptab->handlers[(int) word_mode].insn_code != CODE_FOR_nothing)
{
int i;
rtx insns;
if (target == 0 || target == op0)
target = gen_reg_rtx (mode);
start_sequence ();
/* Do the actual arithmetic. */
for (i = 0; i < GET_MODE_BITSIZE (mode) / BITS_PER_WORD; i++)
{
rtx target_piece = operand_subword (target, i, 1, mode);
rtx x = expand_unop (word_mode, unoptab,
operand_subword_force (op0, i, mode),
target_piece, 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
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (target_piece != x)
emit_move_insn (target_piece, x);
}
insns = get_insns ();
end_sequence ();
emit_no_conflict_block (insns, target, op0, NULL_RTX,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
gen_rtx_fmt_e (unoptab->code, mode,
copy_rtx (op0)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 target;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (unoptab->code == NEG)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
/* Try negating floating point values by flipping the sign bit. */
if (SCALAR_FLOAT_MODE_P (mode))
{
temp = expand_absneg_bit (NEG, mode, op0, target);
if (temp)
return temp;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 there is no negation pattern, and we have no negative zero,
try subtracting from zero. */
if (!HONOR_SIGNED_ZEROS (mode))
{
temp = expand_binop (mode, (unoptab == negv_optab
? subv_optab : sub_optab),
CONST0_RTX (mode), op0, target,
unsignedp, OPTAB_DIRECT);
if (temp)
return temp;
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
/* Try calculating parity (x) as popcount (x) % 2. */
if (unoptab == parity_optab)
{
temp = expand_parity (mode, op0, target);
if (temp)
return temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
try_libcall:
/* Now try a library call in this mode. */
if (unoptab->handlers[(int) mode].libfunc)
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
rtx insns;
rtx value;
enum machine_mode outmode = mode;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* All of these functions return small values. Thus we choose to
have them return something that isn't a double-word. */
if (unoptab == ffs_optab || unoptab == clz_optab || unoptab == ctz_optab
|| unoptab == popcount_optab || unoptab == parity_optab)
outmode
= GET_MODE (hard_libcall_value (TYPE_MODE (integer_type_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
start_sequence ();
/* Pass 1 for NO_QUEUE so we don't lose any increments
if the libcall is cse'd or moved. */
value = emit_library_call_value (unoptab->handlers[(int) mode].libfunc,
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
NULL_RTX, LCT_CONST, outmode,
1, op0, 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
insns = get_insns ();
end_sequence ();
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
target = gen_reg_rtx (outmode);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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_libcall_block (insns, target, value,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gen_rtx_fmt_e (unoptab->code, outmode, op0));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 target;
}
/* It can't be done in this mode. Can we do it in a wider mode? */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (CLASS_HAS_WIDER_MODES_P (class))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (wider_mode = GET_MODE_WIDER_MODE (mode);
wider_mode != VOIDmode;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
wider_mode = GET_MODE_WIDER_MODE (wider_mode))
{
if ((unoptab->handlers[(int) wider_mode].insn_code
!= CODE_FOR_nothing)
|| unoptab->handlers[(int) wider_mode].libfunc)
{
rtx xop0 = op0;
/* For certain operations, we need not actually extend
the narrow operand, as long as we will truncate the
results to the same narrowness. */
xop0 = widen_operand (xop0, wider_mode, mode, unsignedp,
(unoptab == neg_optab
|| unoptab == one_cmpl_optab)
&& class == MODE_INT);
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
temp = expand_unop (wider_mode, unoptab, xop0, NULL_RTX,
unsignedp);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* If we are generating clz using wider mode, adjust the
result. */
if (unoptab == clz_optab && temp != 0)
temp = expand_binop (wider_mode, sub_optab, temp,
GEN_INT (GET_MODE_BITSIZE (wider_mode)
- GET_MODE_BITSIZE (mode)),
target, true, OPTAB_DIRECT);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (temp)
{
if (class != MODE_INT)
{
if (target == 0)
target = gen_reg_rtx (mode);
convert_move (target, temp, 0);
return target;
}
else
return gen_lowpart (mode, temp);
}
else
delete_insns_since (last);
}
}
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* One final attempt at implementing negation via subtraction,
this time allowing widening of the operand. */
if (unoptab->code == NEG && !HONOR_SIGNED_ZEROS (mode))
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
rtx temp;
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
temp = expand_binop (mode,
unoptab == negv_optab ? subv_optab : sub_optab,
CONST0_RTX (mode), op0,
target, unsignedp, OPTAB_LIB_WIDEN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (temp)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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;
}
/* Emit code to compute the absolute value of OP0, with result to
TARGET if convenient. (TARGET may be 0.) The return value says
where the result actually is to be found.
MODE is the mode of the operand; the mode of the result is
different but can be deduced from MODE.
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
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_abs_nojump (enum machine_mode mode, rtx op0, rtx target,
int result_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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
rtx temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (! flag_trapv)
result_unsignedp = 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
/* First try to do it with a special abs instruction. */
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
temp = expand_unop (mode, result_unsignedp ? abs_optab : absv_optab,
op0, target, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (temp != 0)
return temp;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* For floating point modes, try clearing the sign bit. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (SCALAR_FLOAT_MODE_P (mode))
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
temp = expand_absneg_bit (ABS, mode, op0, target);
if (temp)
return temp;
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
/* If we have a MAX insn, we can do this as MAX (x, -x). */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (smax_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing
&& !HONOR_SIGNED_ZEROS (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
{
rtx last = get_last_insn ();
temp = expand_unop (mode, neg_optab, op0, NULL_RTX, 0);
if (temp != 0)
temp = expand_binop (mode, smax_optab, op0, temp, target, 0,
OPTAB_WIDEN);
if (temp != 0)
return temp;
delete_insns_since (last);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If this machine has expensive jumps, we can do integer absolute
value of X as (((signed) x >> (W-1)) ^ x) - ((signed) x >> (W-1)),
where W is the width of MODE. */
if (GET_MODE_CLASS (mode) == MODE_INT && BRANCH_COST >= 2)
{
rtx extended = expand_shift (RSHIFT_EXPR, mode, op0,
size_int (GET_MODE_BITSIZE (mode) - 1),
NULL_RTX, 0);
temp = expand_binop (mode, xor_optab, extended, op0, target, 0,
OPTAB_LIB_WIDEN);
if (temp != 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
temp = expand_binop (mode, result_unsignedp ? sub_optab : subv_optab,
temp, extended, target, 0, OPTAB_LIB_WIDEN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (temp != 0)
return temp;
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
return NULL_RTX;
}
rtx
expand_abs (enum machine_mode mode, rtx op0, rtx target,
int result_unsignedp, int safe)
{
rtx temp, op1;
if (! flag_trapv)
result_unsignedp = 1;
temp = expand_abs_nojump (mode, op0, target, result_unsignedp);
if (temp != 0)
return temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 that does not win, use conditional jump and negate. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* It is safe to use the target if it is the same
as the source if this is also a pseudo register */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (op0 == target && REG_P (op0)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
&& REGNO (op0) >= FIRST_PSEUDO_REGISTER)
safe = 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
op1 = gen_label_rtx ();
if (target == 0 || ! safe
|| GET_MODE (target) != mode
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
|| (MEM_P (target) && MEM_VOLATILE_P (target))
|| (REG_P (target)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
&& REGNO (target) < FIRST_PSEUDO_REGISTER))
target = gen_reg_rtx (mode);
emit_move_insn (target, op0);
NO_DEFER_POP;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
do_compare_rtx_and_jump (target, CONST0_RTX (mode), GE, 0, mode,
NULL_RTX, NULL_RTX, op1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
op0 = expand_unop (mode, result_unsignedp ? neg_optab : negv_optab,
target, target, 0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (op0 != target)
emit_move_insn (target, op0);
emit_label (op1);
OK_DEFER_POP;
return target;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* A subroutine of expand_copysign, perform the copysign operation using the
abs and neg primitives advertised to exist on the target. The assumption
is that we have a split register file, and leaving op0 in fp registers,
and not playing with subregs so much, will help the register allocator. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
static rtx
expand_copysign_absneg (enum machine_mode mode, rtx op0, rtx op1, rtx target,
int bitpos, bool op0_is_abs)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
enum machine_mode imode;
HOST_WIDE_INT hi, lo;
int word;
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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (target == op1)
target = 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
if (!op0_is_abs)
{
op0 = expand_unop (mode, abs_optab, op0, target, 0);
if (op0 == NULL)
return NULL_RTX;
target = op0;
}
else
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (target == NULL_RTX)
target = copy_to_reg (op0);
else
emit_move_insn (target, op0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (GET_MODE_SIZE (mode) <= UNITS_PER_WORD)
{
imode = int_mode_for_mode (mode);
if (imode == BLKmode)
return NULL_RTX;
op1 = gen_lowpart (imode, op1);
}
else
{
imode = word_mode;
if (FLOAT_WORDS_BIG_ENDIAN)
word = (GET_MODE_BITSIZE (mode) - bitpos) / BITS_PER_WORD;
else
word = bitpos / BITS_PER_WORD;
bitpos = bitpos % BITS_PER_WORD;
op1 = operand_subword_force (op1, 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (bitpos < HOST_BITS_PER_WIDE_INT)
{
hi = 0;
lo = (HOST_WIDE_INT) 1 << bitpos;
}
else
{
hi = (HOST_WIDE_INT) 1 << (bitpos - HOST_BITS_PER_WIDE_INT);
lo = 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
op1 = expand_binop (imode, and_optab, op1,
immed_double_const (lo, hi, imode),
NULL_RTX, 1, OPTAB_LIB_WIDEN);
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
label = gen_label_rtx ();
emit_cmp_and_jump_insns (op1, const0_rtx, EQ, NULL_RTX, imode, 1, 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
if (GET_CODE (op0) == CONST_DOUBLE)
op0 = simplify_unary_operation (NEG, mode, op0, mode);
else
op0 = expand_unop (mode, neg_optab, op0, target, 0);
if (op0 != target)
emit_move_insn (target, op0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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_label (label);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return target;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 subroutine of expand_copysign, perform the entire copysign operation
with integer bitmasks. BITPOS is the position of the sign bit; OP0_IS_ABS
is true if op0 is known to have its sign bit clear. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
static rtx
expand_copysign_bit (enum machine_mode mode, rtx op0, rtx op1, rtx target,
int bitpos, bool op0_is_abs)
{
enum machine_mode imode;
HOST_WIDE_INT hi, lo;
int word, nwords, i;
rtx temp, insns;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (GET_MODE_SIZE (mode) <= UNITS_PER_WORD)
{
imode = int_mode_for_mode (mode);
if (imode == BLKmode)
return NULL_RTX;
word = 0;
nwords = 1;
}
else
{
imode = word_mode;
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 (FLOAT_WORDS_BIG_ENDIAN)
word = (GET_MODE_BITSIZE (mode) - bitpos) / BITS_PER_WORD;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
word = bitpos / BITS_PER_WORD;
bitpos = bitpos % BITS_PER_WORD;
nwords = (GET_MODE_BITSIZE (mode) + BITS_PER_WORD - 1) / BITS_PER_WORD;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (bitpos < HOST_BITS_PER_WIDE_INT)
{
hi = 0;
lo = (HOST_WIDE_INT) 1 << bitpos;
}
else
{
hi = (HOST_WIDE_INT) 1 << (bitpos - HOST_BITS_PER_WIDE_INT);
lo = 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 (target == 0 || target == op0 || target == op1)
target = gen_reg_rtx (mode);
if (nwords > 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
start_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
for (i = 0; i < nwords; ++i)
{
rtx targ_piece = operand_subword (target, i, 1, mode);
rtx op0_piece = operand_subword_force (op0, i, 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (i == word)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!op0_is_abs)
op0_piece = expand_binop (imode, and_optab, op0_piece,
immed_double_const (~lo, ~hi, imode),
NULL_RTX, 1, OPTAB_LIB_WIDEN);
op1 = expand_binop (imode, and_optab,
operand_subword_force (op1, i, mode),
immed_double_const (lo, hi, imode),
NULL_RTX, 1, OPTAB_LIB_WIDEN);
temp = expand_binop (imode, ior_optab, op0_piece, op1,
targ_piece, 1, OPTAB_LIB_WIDEN);
if (temp != targ_piece)
emit_move_insn (targ_piece, temp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
emit_move_insn (targ_piece, op0_piece);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
insns = get_insns ();
end_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
emit_no_conflict_block (insns, target, op0, op1, 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
else
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
op1 = expand_binop (imode, and_optab, gen_lowpart (imode, op1),
immed_double_const (lo, hi, imode),
NULL_RTX, 1, OPTAB_LIB_WIDEN);
op0 = gen_lowpart (imode, op0);
if (!op0_is_abs)
op0 = expand_binop (imode, and_optab, op0,
immed_double_const (~lo, ~hi, imode),
NULL_RTX, 1, OPTAB_LIB_WIDEN);
temp = expand_binop (imode, ior_optab, op0, op1,
gen_lowpart (imode, target), 1, OPTAB_LIB_WIDEN);
target = lowpart_subreg_maybe_copy (mode, temp, 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return target;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 the C99 copysign operation. OP0 and OP1 must be the same
scalar floating point mode. Return NULL if we do not know how to
expand the operation inline. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
expand_copysign (rtx op0, rtx op1, rtx target)
{
enum machine_mode mode = GET_MODE (op0);
const struct real_format *fmt;
bool op0_is_abs;
rtx temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (SCALAR_FLOAT_MODE_P (mode));
gcc_assert (GET_MODE (op1) == 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* First try to do it with a special instruction. */
temp = expand_binop (mode, copysign_optab, op0, op1,
target, 0, OPTAB_DIRECT);
if (temp)
return temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
fmt = REAL_MODE_FORMAT (mode);
if (fmt == NULL || !fmt->has_signed_zero)
return 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
op0_is_abs = false;
if (GET_CODE (op0) == CONST_DOUBLE)
{
if (real_isneg (CONST_DOUBLE_REAL_VALUE (op0)))
op0 = simplify_unary_operation (ABS, mode, op0, mode);
op0_is_abs = true;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (fmt->signbit_ro >= 0
&& (GET_CODE (op0) == CONST_DOUBLE
|| (neg_optab->handlers[mode].insn_code != CODE_FOR_nothing
&& abs_optab->handlers[mode].insn_code != CODE_FOR_nothing)))
{
temp = expand_copysign_absneg (mode, op0, op1, target,
fmt->signbit_ro, op0_is_abs);
if (temp)
return temp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (fmt->signbit_rw < 0)
return NULL_RTX;
return expand_copysign_bit (mode, op0, op1, target,
fmt->signbit_rw, op0_is_abs);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 instruction whose insn-code is INSN_CODE,
with two operands: an output TARGET and an input OP0.
TARGET *must* be nonzero, and the output is always stored there.
CODE is an rtx code such that (CODE OP0) is an rtx that describes
the value that is stored into TARGET. */
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_unop_insn (int icode, rtx target, rtx op0, enum rtx_code code)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 temp;
enum machine_mode mode0 = insn_data[icode].operand[1].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
rtx pat;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
temp = target;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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, if insn does not accept our operands, put them into pseudos. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!insn_data[icode].operand[1].predicate (op0, mode0))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
op0 = copy_to_mode_reg (mode0, op0);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!insn_data[icode].operand[0].predicate (temp, GET_MODE (temp)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
temp = gen_reg_rtx (GET_MODE (temp));
pat = GEN_FCN (icode) (temp, op0);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (INSN_P (pat) && NEXT_INSN (pat) != NULL_RTX && code != UNKNOWN)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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_equal_note (pat, temp, code, op0, NULL_RTX);
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
emit_insn (pat);
if (temp != target)
emit_move_insn (target, temp);
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
struct no_conflict_data
{
rtx target, first, insn;
bool must_stay;
};
/* Called via note_stores by emit_no_conflict_block and emit_libcall_block.
Set P->must_stay if the currently examined clobber / store has to stay
in the list of insns that constitute the actual no_conflict block /
libcall block. */
static void
no_conflict_move_test (rtx dest, rtx set, void *p0)
{
struct no_conflict_data *p= p0;
/* If this inns directly contributes to setting the target, it must stay. */
if (reg_overlap_mentioned_p (p->target, dest))
p->must_stay = true;
/* If we haven't committed to keeping any other insns in the list yet,
there is nothing more to check. */
else if (p->insn == p->first)
return;
/* If this insn sets / clobbers a register that feeds one of the insns
already in the list, this insn has to stay too. */
else if (reg_overlap_mentioned_p (dest, PATTERN (p->first))
|| (CALL_P (p->first) && (find_reg_fusage (p->first, USE, dest)))
|| reg_used_between_p (dest, p->first, p->insn)
/* Likewise if this insn depends on a register set by a previous
insn in the list, or if it sets a result (presumably a hard
register) that is set or clobbered by a previous insn.
N.B. the modified_*_p (SET_DEST...) tests applied to a MEM
SET_DEST perform the former check on the address, and the latter
check on the MEM. */
|| (GET_CODE (set) == SET
&& (modified_in_p (SET_SRC (set), p->first)
|| modified_in_p (SET_DEST (set), p->first)
|| modified_between_p (SET_SRC (set), p->first, p->insn)
|| modified_between_p (SET_DEST (set), p->first, p->insn))))
p->must_stay = true;
}
/* Encapsulate the block starting at FIRST and ending with LAST, which is
logically equivalent to EQUIV, so it gets manipulated as a unit if it
is possible to do so. */
static void
maybe_encapsulate_block (rtx first, rtx last, rtx equiv)
{
if (!flag_non_call_exceptions || !may_trap_p (equiv))
{
/* We can't attach the REG_LIBCALL and REG_RETVAL notes when the
encapsulated region would not be in one basic block, i.e. when
there is a control_flow_insn_p insn between FIRST and LAST. */
bool attach_libcall_retval_notes = true;
rtx insn, next = NEXT_INSN (last);
for (insn = first; insn != next; insn = NEXT_INSN (insn))
if (control_flow_insn_p (insn))
{
attach_libcall_retval_notes = false;
break;
}
if (attach_libcall_retval_notes)
{
REG_NOTES (first) = gen_rtx_INSN_LIST (REG_LIBCALL, last,
REG_NOTES (first));
REG_NOTES (last) = gen_rtx_INSN_LIST (REG_RETVAL, first,
REG_NOTES (last));
}
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Emit code to perform a series of operations on a multi-word quantity, one
word at a time.
Such a block is preceded by a CLOBBER of the output, consists of multiple
insns, each setting one word of the output, and followed by a SET copying
the output to itself.
Each of the insns setting words of the output receives a REG_NO_CONFLICT
note indicating that it doesn't conflict with the (also multi-word)
inputs. The entire block is surrounded by REG_LIBCALL and REG_RETVAL
notes.
INSNS is a block of code generated to perform the operation, not including
the CLOBBER and final copy. All insns that compute intermediate values
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
are first emitted, followed by the block as described above.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
TARGET, OP0, and OP1 are the output and inputs of the operations,
respectively. OP1 may be zero for a unary operation.
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
EQUIV, if nonzero, is an expression to be placed into a REG_EQUAL note
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
on the last insn.
If TARGET is not a register, INSNS is simply emitted with no special
processing. Likewise if anything in INSNS is not an INSN or if
there is a libcall block inside INSNS.
The final insn emitted is returned. */
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_no_conflict_block (rtx insns, rtx target, rtx op0, rtx op1, rtx equiv)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 prev, next, first, last, insn;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!REG_P (target) || reload_in_progress)
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
return emit_insn (insns);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
for (insn = insns; insn; insn = NEXT_INSN (insn))
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!NONJUMP_INSN_P (insn)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
|| find_reg_note (insn, REG_LIBCALL, NULL_RTX))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
return emit_insn (insns);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* First emit all insns that do not store into words of the output and remove
these from the list. */
for (insn = insns; insn; insn = next)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
rtx note;
struct no_conflict_data data;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
next = NEXT_INSN (insn);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Some ports (cris) create a libcall regions at their own. We must
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
avoid any potential nesting of LIBCALLs. */
if ((note = find_reg_note (insn, REG_LIBCALL, NULL)) != NULL)
remove_note (insn, note);
if ((note = find_reg_note (insn, REG_RETVAL, NULL)) != NULL)
remove_note (insn, note);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
data.target = target;
data.first = insns;
data.insn = insn;
data.must_stay = 0;
note_stores (PATTERN (insn), no_conflict_move_test, &data);
if (! data.must_stay)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (PREV_INSN (insn))
NEXT_INSN (PREV_INSN (insn)) = next;
else
insns = next;
if (next)
PREV_INSN (next) = PREV_INSN (insn);
add_insn (insn);
}
}
prev = get_last_insn ();
/* Now write the CLOBBER of the output, followed by the setting of each
of the words, followed by the final copy. */
if (target != op0 && target != op1)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
emit_insn (gen_rtx_CLOBBER (VOIDmode, target));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (insn = insns; insn; insn = next)
{
next = NEXT_INSN (insn);
add_insn (insn);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (op1 && REG_P (op1))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_NO_CONFLICT, op1,
REG_NOTES (insn));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (op0 && REG_P (op0))
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_NO_CONFLICT, op0,
REG_NOTES (insn));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
if (mov_optab->handlers[(int) GET_MODE (target)].insn_code
!= CODE_FOR_nothing)
{
last = emit_move_insn (target, target);
if (equiv)
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
set_unique_reg_note (last, REG_EQUAL, equiv);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
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
{
last = get_last_insn ();
/* Remove any existing REG_EQUAL note from "last", or else it will
be mistaken for a note referring to the full contents of the
alleged libcall value when found together with the REG_RETVAL
note added below. An existing note can come from an insn
expansion at "last". */
remove_note (last, find_reg_note (last, REG_EQUAL, 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
if (prev == 0)
first = get_insns ();
else
first = NEXT_INSN (prev);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
maybe_encapsulate_block (first, last, equiv);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 last;
}
/* Emit code to make a call to a constant function or a library call.
INSNS is a list containing all insns emitted in the call.
These insns leave the result in RESULT. Our block is to copy RESULT
to TARGET, which is logically equivalent to EQUIV.
We first emit any insns that set a pseudo on the assumption that these are
loading constants into registers; doing so allows them to be safely cse'ed
between blocks. Then we emit all the other insns in the block, followed by
an insn to move RESULT to TARGET. This last insn will have a REQ_EQUAL
note with an operand of EQUIV.
Moving assignments to pseudos outside of the block is done to improve
the generated code, but is not required to generate correct code,
hence being unable to move an assignment is not grounds for not making
a libcall block. There are two reasons why it is safe to leave these
insns inside the block: First, we know that these pseudos cannot be
used in generated RTL outside the block since they are created for
temporary purposes within the block. Second, CSE will not record the
values of anything set inside a libcall block, so we know they must
be dead at the end of the block.
Except for the first group of insns (the ones setting pseudos), the
block is delimited by REG_RETVAL and REG_LIBCALL notes. */
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_libcall_block (rtx insns, rtx target, rtx result, rtx equiv)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
rtx final_dest = target;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 prev, next, first, last, insn;
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
/* If this is a reg with REG_USERVAR_P set, then it could possibly turn
into a MEM later. Protect the libcall block from this change. */
if (! REG_P (target) || REG_USERVAR_P (target))
target = gen_reg_rtx (GET_MODE (target));
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
/* If we're using non-call exceptions, a libcall corresponding to an
operation that may trap may also trap. */
if (flag_non_call_exceptions && may_trap_p (equiv))
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 (insn = insns; insn; insn = NEXT_INSN (insn))
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (CALL_P (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
{
rtx note = find_reg_note (insn, REG_EH_REGION, NULL_RTX);
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
if (note != 0 && INTVAL (XEXP (note, 0)) <= 0)
remove_note (insn, note);
}
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
else
/* look for any CALL_INSNs in this sequence, and attach a REG_EH_REGION
reg note to indicate that this call cannot throw or execute a nonlocal
goto (unless there is already a REG_EH_REGION note, in which case
we update it). */
for (insn = insns; insn; insn = NEXT_INSN (insn))
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (CALL_P (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
{
rtx note = find_reg_note (insn, REG_EH_REGION, NULL_RTX);
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
if (note != 0)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
XEXP (note, 0) = constm1_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
else
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_EH_REGION, constm1_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
REG_NOTES (insn));
}
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
/* First emit all insns that set pseudos. Remove them from the list as
we go. Avoid insns that set pseudos which were referenced in previous
insns. These can be generated by move_by_pieces, for example,
to update an address. Similarly, avoid insns that reference things
set in previous insns. */
for (insn = insns; insn; insn = next)
{
rtx set = single_set (insn);
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
rtx note;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Some ports (cris) create a libcall regions at their own. We must
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
avoid any potential nesting of LIBCALLs. */
if ((note = find_reg_note (insn, REG_LIBCALL, NULL)) != NULL)
remove_note (insn, note);
if ((note = find_reg_note (insn, REG_RETVAL, NULL)) != NULL)
remove_note (insn, note);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
next = NEXT_INSN (insn);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (set != 0 && REG_P (SET_DEST (set))
&& REGNO (SET_DEST (set)) >= FIRST_PSEUDO_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
struct no_conflict_data data;
data.target = const0_rtx;
data.first = insns;
data.insn = insn;
data.must_stay = 0;
note_stores (PATTERN (insn), no_conflict_move_test, &data);
if (! data.must_stay)
{
if (PREV_INSN (insn))
NEXT_INSN (PREV_INSN (insn)) = next;
else
insns = next;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (next)
PREV_INSN (next) = PREV_INSN (insn);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
add_insn (insn);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Some ports use a loop to copy large arguments onto the stack.
Don't move anything outside such a loop. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (LABEL_P (insn))
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
prev = get_last_insn ();
/* Write the remaining insns followed by the final copy. */
for (insn = insns; insn; insn = next)
{
next = NEXT_INSN (insn);
add_insn (insn);
}
last = emit_move_insn (target, result);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (mov_optab->handlers[(int) GET_MODE (target)].insn_code
!= CODE_FOR_nothing)
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
set_unique_reg_note (last, REG_EQUAL, copy_rtx (equiv));
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
{
/* Remove any existing REG_EQUAL note from "last", or else it will
be mistaken for a note referring to the full contents of the
libcall value when found together with the REG_RETVAL note added
below. An existing note can come from an insn expansion at
"last". */
remove_note (last, find_reg_note (last, REG_EQUAL, 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
Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1
2001-01-03 17:16:04 +00:00
if (final_dest != target)
emit_move_insn (final_dest, target);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (prev == 0)
first = get_insns ();
else
first = NEXT_INSN (prev);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
maybe_encapsulate_block (first, last, equiv);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
/* Nonzero if we can perform a comparison of mode MODE straightforwardly.
PURPOSE describes how this comparison will be used. CODE is the rtx
comparison code we will be using.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
??? Actually, CODE is slightly weaker than that. A target is still
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
required to implement all of the normal bcc operations, but not
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
required to implement all (or any) of the unordered bcc operations. */
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
int
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
can_compare_p (enum rtx_code code, enum machine_mode mode,
enum can_compare_purpose purpose)
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
{
do
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (cmp_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
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 (purpose == ccp_jump)
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
return bcc_gen_fctn[(int) code] != 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
else if (purpose == ccp_store_flag)
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
return setcc_gen_code[(int) code] != CODE_FOR_nothing;
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
/* There's only one cmov entry point, and it's allowed to fail. */
return 1;
}
if (purpose == ccp_jump
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
&& cbranch_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
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 1;
if (purpose == ccp_cmov
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
&& cmov_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
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 1;
if (purpose == ccp_store_flag
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
&& cstore_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
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 1;
mode = GET_MODE_WIDER_MODE (mode);
}
while (mode != VOIDmode);
return 0;
}
/* This function is called when we are going to emit a compare instruction that
compares the values found in *PX and *PY, using the rtl operator COMPARISON.
*PMODE is the mode of the inputs (in case they are const_int).
*PUNSIGNEDP nonzero says that the operands are unsigned;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 matters if they need to be widened.
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 they have mode BLKmode, then SIZE specifies the size of both 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
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 function performs all the setup necessary so that the caller only has
to emit a single comparison insn. This setup can involve doing a BLKmode
comparison or emitting a library call to perform the comparison if no insn
is available to handle it.
The values which are passed in through pointers can be modified; the caller
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
should perform the comparison on the modified values. Constant
comparisons must have already been folded. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
static void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
prepare_cmp_insn (rtx *px, rtx *py, enum rtx_code *pcomparison, rtx size,
enum machine_mode *pmode, int *punsignedp,
enum can_compare_purpose 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
{
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 mode = *pmode;
rtx x = *px, y = *py;
int unsignedp = *punsignedp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If we are inside an appropriately-short loop and we are optimizing,
force expensive constants into a register. */
if (CONSTANT_P (x) && optimize
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_cost (x, COMPARE) > COSTS_N_INSNS (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
x = force_reg (mode, x);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (CONSTANT_P (y) && optimize
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_cost (y, COMPARE) > COSTS_N_INSNS (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
y = force_reg (mode, y);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
#ifdef HAVE_cc0
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Make sure if we have a canonical comparison. The RTL
documentation states that canonical comparisons are required only
for targets which have cc0. */
gcc_assert (!CONSTANT_P (x) || CONSTANT_P (y));
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Don't let both operands fail to indicate the mode. */
if (GET_MODE (x) == VOIDmode && GET_MODE (y) == VOIDmode)
x = force_reg (mode, x);
/* Handle all BLKmode compares. */
if (mode == BLKmode)
{
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
enum machine_mode cmp_mode, result_mode;
enum insn_code cmp_code;
tree length_type;
rtx libfunc;
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;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
rtx opalign
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_INT (MIN (MEM_ALIGN (x), MEM_ALIGN (y)) / BITS_PER_UNIT);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (size);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Try to use a memory block compare insn - either cmpstr
or cmpmem will do. */
for (cmp_mode = GET_CLASS_NARROWEST_MODE (MODE_INT);
cmp_mode != VOIDmode;
cmp_mode = GET_MODE_WIDER_MODE (cmp_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
cmp_code = cmpmem_optab[cmp_mode];
if (cmp_code == CODE_FOR_nothing)
cmp_code = cmpstr_optab[cmp_mode];
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (cmp_code == CODE_FOR_nothing)
cmp_code = cmpstrn_optab[cmp_mode];
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (cmp_code == CODE_FOR_nothing)
continue;
/* Must make sure the size fits the insn's mode. */
if ((GET_CODE (size) == CONST_INT
&& INTVAL (size) >= (1 << GET_MODE_BITSIZE (cmp_mode)))
|| (GET_MODE_BITSIZE (GET_MODE (size))
> GET_MODE_BITSIZE (cmp_mode)))
continue;
result_mode = insn_data[cmp_code].operand[0].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
result = gen_reg_rtx (result_mode);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
size = convert_to_mode (cmp_mode, size, 1);
emit_insn (GEN_FCN (cmp_code) (result, x, y, size, opalign));
*px = result;
*py = const0_rtx;
*pmode = result_mode;
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 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
/* Otherwise call a library function, memcmp. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
libfunc = memcmp_libfunc;
length_type = sizetype;
result_mode = TYPE_MODE (integer_type_node);
cmp_mode = TYPE_MODE (length_type);
size = convert_to_mode (TYPE_MODE (length_type), size,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
TYPE_UNSIGNED (length_type));
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
result = emit_library_call_value (libfunc, 0, LCT_PURE_MAKE_BLOCK,
result_mode, 3,
XEXP (x, 0), Pmode,
XEXP (y, 0), Pmode,
size, cmp_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
*px = result;
*py = const0_rtx;
*pmode = result_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
return;
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Don't allow operands to the compare to trap, as that can put the
compare and branch in different basic blocks. */
if (flag_non_call_exceptions)
{
if (may_trap_p (x))
x = force_reg (mode, x);
if (may_trap_p (y))
y = force_reg (mode, y);
}
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
*px = x;
*py = y;
if (can_compare_p (*pcomparison, mode, purpose))
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
/* Handle a lib call just for the mode we are using. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (cmp_optab->handlers[(int) mode].libfunc && !SCALAR_FLOAT_MODE_P (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
{
rtx libfunc = cmp_optab->handlers[(int) mode].libfunc;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
rtx result;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If we want unsigned, and this mode has a distinct unsigned
comparison routine, use that. */
if (unsignedp && ucmp_optab->handlers[(int) mode].libfunc)
libfunc = ucmp_optab->handlers[(int) mode].libfunc;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
result = emit_library_call_value (libfunc, NULL_RTX, LCT_CONST_MAKE_BLOCK,
word_mode, 2, x, mode, y, mode);
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
/* There are two kinds of comparison routines. Biased routines
return 0/1/2, and unbiased routines return -1/0/1. Other parts
of gcc expect that the comparison operation is equivalent
to the modified comparison. For signed comparisons compare the
result against 1 in the biased case, and zero in the unbiased
case. For unsigned comparisons always compare against 1 after
biasing the unbiased result by adding 1. This gives us a way to
represent LTU. */
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
*px = result;
*pmode = word_mode;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
*py = const1_rtx;
if (!TARGET_LIB_INT_CMP_BIASED)
{
if (*punsignedp)
*px = plus_constant (result, 1);
else
*py = 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
return;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (SCALAR_FLOAT_MODE_P (mode));
prepare_float_lib_cmp (px, py, pcomparison, pmode, punsignedp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
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 emitting an insn with code ICODE, make sure that X, which is going
to be used for operand OPNUM of the insn, is converted from mode MODE to
WIDER_MODE (UNSIGNEDP determines whether it is an unsigned conversion), and
that it is accepted by the operand predicate. Return the new value. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
static rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
prepare_operand (int icode, rtx x, int opnum, enum machine_mode mode,
enum machine_mode wider_mode, int 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 (mode != wider_mode)
x = convert_modes (wider_mode, mode, x, unsignedp);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!insn_data[icode].operand[opnum].predicate
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, insn_data[icode].operand[opnum].mode))
Gcc 3.3.1-release.
2003-08-22 02:56:07 +00:00
{
if (no_new_pseudos)
return NULL_RTX;
x = copy_to_mode_reg (insn_data[icode].operand[opnum].mode, 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
return x;
}
/* Subroutine of emit_cmp_and_jump_insns; this function is called when we know
we can do the comparison.
The arguments are the same as for emit_cmp_and_jump_insns; but LABEL may
be NULL_RTX which indicates that only a comparison is to be generated. */
static void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_cmp_and_jump_insn_1 (rtx x, rtx y, enum machine_mode mode,
enum rtx_code comparison, int unsignedp, rtx 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
{
rtx test = gen_rtx_fmt_ee (comparison, mode, x, y);
enum mode_class class = GET_MODE_CLASS (mode);
enum machine_mode wider_mode = mode;
/* Try combined insns first. */
do
{
enum insn_code icode;
PUT_MODE (test, wider_mode);
if (label)
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
icode = cbranch_optab->handlers[(int) wider_mode].insn_code;
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
if (icode != CODE_FOR_nothing
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
&& insn_data[icode].operand[0].predicate (test, 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
{
x = prepare_operand (icode, x, 1, mode, wider_mode, unsignedp);
y = prepare_operand (icode, y, 2, mode, wider_mode, unsignedp);
emit_jump_insn (GEN_FCN (icode) (test, x, y, label));
return;
}
}
/* Handle some compares against zero. */
icode = (int) tst_optab->handlers[(int) wider_mode].insn_code;
if (y == CONST0_RTX (mode) && icode != CODE_FOR_nothing)
{
x = prepare_operand (icode, x, 0, mode, wider_mode, unsignedp);
emit_insn (GEN_FCN (icode) (x));
if (label)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
emit_jump_insn (bcc_gen_fctn[(int) comparison] (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
return;
}
/* Handle compares for which there is a directly suitable insn. */
icode = (int) cmp_optab->handlers[(int) wider_mode].insn_code;
if (icode != CODE_FOR_nothing)
{
x = prepare_operand (icode, x, 0, mode, wider_mode, unsignedp);
y = prepare_operand (icode, y, 1, mode, wider_mode, unsignedp);
emit_insn (GEN_FCN (icode) (x, y));
if (label)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
emit_jump_insn (bcc_gen_fctn[(int) comparison] (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
return;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!CLASS_HAS_WIDER_MODES_P (class))
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;
wider_mode = GET_MODE_WIDER_MODE (wider_mode);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
}
while (wider_mode != 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_unreachable ();
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
/* Generate code to compare X with Y so that the condition codes are
set and to jump to LABEL if the condition is true. If X is a
constant and Y is not a constant, then the comparison is swapped to
ensure that the comparison RTL has the canonical form.
UNSIGNEDP nonzero says that X and Y are unsigned; this matters if they
need to be widened by emit_cmp_insn. UNSIGNEDP is also used to select
the proper branch condition 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
If X and Y have mode BLKmode, then SIZE specifies the size of both X and Y.
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
MODE is the mode of the inputs (in case they are const_int).
COMPARISON is the rtl operator to compare with (EQ, NE, GT, etc.). It will
be passed unchanged to emit_cmp_insn, then potentially converted into an
unsigned variant based on UNSIGNEDP to select a proper jump instruction. */
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_cmp_and_jump_insns (rtx x, rtx y, enum rtx_code comparison, rtx size,
enum machine_mode mode, int unsignedp, rtx label)
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
rtx op0 = x, op1 = y;
/* Swap operands and condition to ensure canonical RTL. */
if (swap_commutative_operands_p (x, y))
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 we're not emitting a branch, this means some caller
is out of sync. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (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
op0 = y, op1 = x;
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
comparison = swap_condition (comparison);
}
#ifdef HAVE_cc0
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* If OP0 is still a constant, then both X and Y must be constants.
Force X into a register to create canonical RTL. */
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
if (CONSTANT_P (op0))
op0 = force_reg (mode, op0);
#endif
if (unsignedp)
comparison = unsigned_condition (comparison);
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
prepare_cmp_insn (&op0, &op1, &comparison, size, &mode, &unsignedp,
ccp_jump);
emit_cmp_and_jump_insn_1 (op0, op1, mode, comparison, unsignedp, label);
}
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
/* Like emit_cmp_and_jump_insns, but generate only the comparison. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_cmp_insn (rtx x, rtx y, enum rtx_code comparison, rtx size,
enum machine_mode mode, 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
{
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 (x, y, comparison, size, mode, unsignedp, 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
}
/* Emit a library call comparison between floating point X and Y.
COMPARISON is the rtl operator to compare with (EQ, NE, GT, etc.). */
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 void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
prepare_float_lib_cmp (rtx *px, rtx *py, enum rtx_code *pcomparison,
enum machine_mode *pmode, int *punsignedp)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
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 rtx_code comparison = *pcomparison;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
enum rtx_code swapped = swap_condition (comparison);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
enum rtx_code reversed = reverse_condition_maybe_unordered (comparison);
rtx x = *px;
rtx y = *py;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
enum machine_mode orig_mode = GET_MODE (x);
enum machine_mode mode;
rtx value, target, insns, equiv;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 libfunc = 0;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
bool reversed_p = 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
for (mode = orig_mode;
mode != VOIDmode;
mode = GET_MODE_WIDER_MODE (mode))
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
{
if ((libfunc = code_to_optab[comparison]->handlers[mode].libfunc))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if ((libfunc = code_to_optab[swapped]->handlers[mode].libfunc))
{
rtx tmp;
tmp = x; x = y; y = tmp;
comparison = swapped;
break;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if ((libfunc = code_to_optab[reversed]->handlers[mode].libfunc)
&& FLOAT_LIB_COMPARE_RETURNS_BOOL (mode, reversed))
{
comparison = reversed;
reversed_p = true;
break;
}
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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (mode != VOIDmode);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (mode != orig_mode)
{
x = convert_to_mode (mode, x, 0);
y = convert_to_mode (mode, y, 0);
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Attach a REG_EQUAL note describing the semantics of the libcall to
the RTL. The allows the RTL optimizers to delete the libcall if the
condition can be determined at compile-time. */
if (comparison == UNORDERED)
{
rtx temp = simplify_gen_relational (NE, word_mode, mode, x, x);
equiv = simplify_gen_relational (NE, word_mode, mode, y, y);
equiv = simplify_gen_ternary (IF_THEN_ELSE, word_mode, word_mode,
temp, const_true_rtx, equiv);
}
else
{
equiv = simplify_gen_relational (comparison, word_mode, mode, x, y);
if (! FLOAT_LIB_COMPARE_RETURNS_BOOL (mode, comparison))
{
rtx true_rtx, false_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
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
switch (comparison)
{
case EQ:
true_rtx = const0_rtx;
false_rtx = const_true_rtx;
break;
case NE:
true_rtx = const_true_rtx;
false_rtx = const0_rtx;
break;
case GT:
true_rtx = const1_rtx;
false_rtx = const0_rtx;
break;
case GE:
true_rtx = const0_rtx;
false_rtx = constm1_rtx;
break;
case LT:
true_rtx = constm1_rtx;
false_rtx = const0_rtx;
break;
case LE:
true_rtx = const0_rtx;
false_rtx = const1_rtx;
break;
default:
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_unreachable ();
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
}
equiv = simplify_gen_ternary (IF_THEN_ELSE, word_mode, word_mode,
equiv, true_rtx, false_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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
start_sequence ();
value = emit_library_call_value (libfunc, NULL_RTX, LCT_CONST,
word_mode, 2, x, mode, y, mode);
insns = get_insns ();
end_sequence ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
target = gen_reg_rtx (word_mode);
emit_libcall_block (insns, target, value, equiv);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
if (comparison == UNORDERED
|| FLOAT_LIB_COMPARE_RETURNS_BOOL (mode, comparison))
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
comparison = reversed_p ? EQ : NE;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
*px = target;
*py = const0_rtx;
*pmode = word_mode;
*pcomparison = comparison;
*punsignedp = 0;
}
/* Generate code to indirectly jump to a location given in the rtx LOC. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
void
emit_indirect_jump (rtx loc)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!insn_data[(int) CODE_FOR_indirect_jump].operand[0].predicate
(loc, Pmode))
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
loc = copy_to_mode_reg (Pmode, loc);
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
emit_jump_insn (gen_indirect_jump (loc));
emit_barrier ();
}
#ifdef HAVE_conditional_move
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 a conditional move instruction if the machine supports one for that
condition and machine 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
OP0 and OP1 are the operands that should be compared using CODE. CMODE is
the mode to use should they be constants. If it is VOIDmode, they cannot
both be constants.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
OP2 should be stored in TARGET if the comparison is true, otherwise OP3
should be stored there. MODE is the mode to use should they be constants.
If it is VOIDmode, they cannot both be constants.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
The result is either TARGET (perhaps modified) or NULL_RTX if the operation
is not supported. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
rtx
emit_conditional_move (rtx target, enum rtx_code code, rtx op0, rtx op1,
enum machine_mode cmode, rtx op2, rtx op3,
enum machine_mode mode, int unsignedp)
{
rtx tem, subtarget, comparison, insn;
enum insn_code icode;
enum rtx_code reversed;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* If one operand is constant, make it the second one. Only do this
if the other operand is not constant as well. */
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 (swap_commutative_operands_p (op0, op1))
{
tem = op0;
op0 = op1;
op1 = tem;
code = swap_condition (code);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
/* get_condition will prefer to generate LT and GT even if the old
comparison was against zero, so undo that canonicalization here since
comparisons against zero are cheaper. */
if (code == LT && op1 == const1_rtx)
code = LE, op1 = const0_rtx;
else if (code == GT && op1 == constm1_rtx)
code = GE, op1 = 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
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (cmode == VOIDmode)
cmode = GET_MODE (op0);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
if (swap_commutative_operands_p (op2, op3)
&& ((reversed = reversed_comparison_code_parts (code, op0, op1, NULL))
!= UNKNOWN))
{
tem = op2;
op2 = op3;
op3 = tem;
code = reversed;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
if (mode == VOIDmode)
mode = GET_MODE (op2);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
icode = movcc_gen_code[mode];
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (icode == CODE_FOR_nothing)
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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!target)
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
target = gen_reg_rtx (mode);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
subtarget = target;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
/* If the insn doesn't accept these operands, put them in pseudos. */
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
if (!insn_data[icode].operand[0].predicate
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
(subtarget, insn_data[icode].operand[0].mode))
subtarget = gen_reg_rtx (insn_data[icode].operand[0].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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!insn_data[icode].operand[2].predicate
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
(op2, insn_data[icode].operand[2].mode))
op2 = copy_to_mode_reg (insn_data[icode].operand[2].mode, op2);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (!insn_data[icode].operand[3].predicate
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
(op3, insn_data[icode].operand[3].mode))
op3 = copy_to_mode_reg (insn_data[icode].operand[3].mode, op3);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
/* Everything should now be in the suitable form, so emit the compare insn
and then the conditional move. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
comparison
= compare_from_rtx (op0, op1, code, unsignedp, cmode, NULL_RTX);
/* ??? Watch for const0_rtx (nop) and const_true_rtx (unconditional)? */
/* We can get const0_rtx or const_true_rtx in some circumstances. Just
return NULL and let the caller figure out how best to deal with this
situation. */
if (GET_CODE (comparison) != code)
return NULL_RTX;
insn = GEN_FCN (icode) (subtarget, comparison, op2, op3);
/* If that failed, then give up. */
if (insn == 0)
return 0;
emit_insn (insn);
if (subtarget != target)
convert_move (target, subtarget, 0);
return target;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
/* Return nonzero if a conditional move of mode MODE is supported.
This function is for combine so it can tell whether an insn that looks
like a conditional move is actually supported by the hardware. If we
guess wrong we lose a bit on optimization, but that's it. */
/* ??? sparc64 supports conditionally moving integers values based on fp
comparisons, and vice versa. How do we handle them? */
int
can_conditionally_move_p (enum machine_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
{
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (movcc_gen_code[mode] != CODE_FOR_nothing)
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
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
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
#endif /* HAVE_conditional_move */
/* Emit a conditional addition instruction if the machine supports one for that
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
condition and machine mode.
OP0 and OP1 are the operands that should be compared using CODE. CMODE is
the mode to use should they be constants. If it is VOIDmode, they cannot
both be constants.
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
OP2 should be stored in TARGET if the comparison is true, otherwise OP2+OP3
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
should be stored there. MODE is the mode to use should they be constants.
If it is VOIDmode, they cannot both be constants.
The result is either TARGET (perhaps modified) or NULL_RTX if the operation
is not supported. */
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
emit_conditional_add (rtx target, enum rtx_code code, rtx op0, rtx op1,
enum machine_mode cmode, rtx op2, rtx op3,
enum machine_mode mode, 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
{
rtx tem, subtarget, comparison, insn;
enum insn_code icode;
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 rtx_code reversed;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 one operand is constant, make it the second one. Only do this
if the other operand is not constant as well. */
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 (swap_commutative_operands_p (op0, op1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
tem = op0;
op0 = op1;
op1 = tem;
code = swap_condition (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
/* get_condition will prefer to generate LT and GT even if the old
comparison was against zero, so undo that canonicalization here since
comparisons against zero are cheaper. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (code == LT && op1 == const1_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
code = LE, op1 = const0_rtx;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
else if (code == GT && op1 == constm1_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
code = GE, op1 = 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
if (cmode == VOIDmode)
cmode = GET_MODE (op0);
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 (swap_commutative_operands_p (op2, op3)
&& ((reversed = reversed_comparison_code_parts (code, op0, op1, NULL))
!= UNKNOWN))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
tem = op2;
op2 = op3;
op3 = tem;
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
code = reversed;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
if (mode == VOIDmode)
mode = GET_MODE (op2);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
icode = addcc_optab->handlers[(int) mode].insn_code;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (icode == CODE_FOR_nothing)
return 0;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!target)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
target = gen_reg_rtx (mode);
/* If the insn doesn't accept these operands, put them in pseudos. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!insn_data[icode].operand[0].predicate
(target, insn_data[icode].operand[0].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
subtarget = gen_reg_rtx (insn_data[icode].operand[0].mode);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
else
subtarget = target;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (!insn_data[icode].operand[2].predicate
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
(op2, insn_data[icode].operand[2].mode))
op2 = copy_to_mode_reg (insn_data[icode].operand[2].mode, op2);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (!insn_data[icode].operand[3].predicate
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
(op3, insn_data[icode].operand[3].mode))
op3 = copy_to_mode_reg (insn_data[icode].operand[3].mode, op3);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Everything should now be in the suitable form, so emit the compare insn
and then the conditional move. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
comparison
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
= compare_from_rtx (op0, op1, code, unsignedp, cmode, 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
/* ??? Watch for const0_rtx (nop) and const_true_rtx (unconditional)? */
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
/* We can get const0_rtx or const_true_rtx in some circumstances. Just
return NULL and let the caller figure out how best to deal with this
situation. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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_CODE (comparison) != 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
return NULL_RTX;
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
insn = GEN_FCN (icode) (subtarget, comparison, op2, op3);
/* If that failed, then give up. */
if (insn == 0)
return 0;
emit_insn (insn);
if (subtarget != target)
convert_move (target, subtarget, 0);
return target;
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* These functions attempt to generate an insn body, rather than
emitting the insn, but if the gen function already emits them, we
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
make no attempt to turn them back into naked patterns. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 and return an insn body to add Y to X. */
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
gen_add2_insn (rtx x, rtx y)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
int icode = (int) add_optab->handlers[(int) GET_MODE (x)].insn_code;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (insn_data[icode].operand[0].predicate
(x, insn_data[icode].operand[0].mode));
gcc_assert (insn_data[icode].operand[1].predicate
(x, insn_data[icode].operand[1].mode));
gcc_assert (insn_data[icode].operand[2].predicate
(y, insn_data[icode].operand[2].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 4.2.0 release.
2007-05-19 01:19:51 +00:00
return GEN_FCN (icode) (x, x, y);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
/* Generate and return an insn body to add r1 and c,
storing the result in r0. */
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
gen_add3_insn (rtx r0, rtx r1, rtx 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
{
int icode = (int) add_optab->handlers[(int) GET_MODE (r0)].insn_code;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (icode == CODE_FOR_nothing
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
|| !(insn_data[icode].operand[0].predicate
(r0, insn_data[icode].operand[0].mode))
|| !(insn_data[icode].operand[1].predicate
(r1, insn_data[icode].operand[1].mode))
|| !(insn_data[icode].operand[2].predicate
(c, insn_data[icode].operand[2].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
return NULL_RTX;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return GEN_FCN (icode) (r0, r1, 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
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
have_add2_insn (rtx x, rtx y)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 icode;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (GET_MODE (x) != 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
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
icode = (int) add_optab->handlers[(int) GET_MODE (x)].insn_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
if (icode == CODE_FOR_nothing)
return 0;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!(insn_data[icode].operand[0].predicate
(x, insn_data[icode].operand[0].mode))
|| !(insn_data[icode].operand[1].predicate
(x, insn_data[icode].operand[1].mode))
|| !(insn_data[icode].operand[2].predicate
(y, insn_data[icode].operand[2].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
return 0;
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 and return an insn body to subtract Y from X. */
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
gen_sub2_insn (rtx x, rtx y)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
int icode = (int) sub_optab->handlers[(int) GET_MODE (x)].insn_code;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (insn_data[icode].operand[0].predicate
(x, insn_data[icode].operand[0].mode));
gcc_assert (insn_data[icode].operand[1].predicate
(x, insn_data[icode].operand[1].mode));
gcc_assert (insn_data[icode].operand[2].predicate
(y, insn_data[icode].operand[2].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 4.2.0 release.
2007-05-19 01:19:51 +00:00
return GEN_FCN (icode) (x, x, y);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
/* Generate and return an insn body to subtract r1 and c,
storing the result in r0. */
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
gen_sub3_insn (rtx r0, rtx r1, rtx 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
{
int icode = (int) sub_optab->handlers[(int) GET_MODE (r0)].insn_code;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (icode == CODE_FOR_nothing
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
|| !(insn_data[icode].operand[0].predicate
(r0, insn_data[icode].operand[0].mode))
|| !(insn_data[icode].operand[1].predicate
(r1, insn_data[icode].operand[1].mode))
|| !(insn_data[icode].operand[2].predicate
(c, insn_data[icode].operand[2].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
return NULL_RTX;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return GEN_FCN (icode) (r0, r1, 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
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
have_sub2_insn (rtx x, rtx y)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 icode;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (GET_MODE (x) != 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
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
icode = (int) sub_optab->handlers[(int) GET_MODE (x)].insn_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
if (icode == CODE_FOR_nothing)
return 0;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!(insn_data[icode].operand[0].predicate
(x, insn_data[icode].operand[0].mode))
|| !(insn_data[icode].operand[1].predicate
(x, insn_data[icode].operand[1].mode))
|| !(insn_data[icode].operand[2].predicate
(y, insn_data[icode].operand[2].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
return 0;
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 the body of an instruction to copy Y into X.
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
It may be a list of insns, if one insn isn't enough. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
gen_move_insn (rtx x, rtx y)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 seq;
start_sequence ();
emit_move_insn_1 (x, y);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
seq = get_insns ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
end_sequence ();
return seq;
}
/* Return the insn code used to extend FROM_MODE to TO_MODE.
UNSIGNEDP specifies zero-extension instead of sign-extension. If
no such operation exists, CODE_FOR_nothing will be returned. */
enum insn_code
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
can_extend_p (enum machine_mode to_mode, enum machine_mode from_mode,
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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
convert_optab tab;
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
#ifdef HAVE_ptr_extend
if (unsignedp < 0)
return CODE_FOR_ptr_extend;
#endif
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
tab = unsignedp ? zext_optab : sext_optab;
return tab->handlers[to_mode][from_mode].insn_code;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 body of an insn to extend Y (with mode MFROM)
into X (with mode MTO). Do zero-extension if UNSIGNEDP is nonzero. */
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
gen_extend_insn (rtx x, rtx y, enum machine_mode mto,
enum machine_mode mfrom, 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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
enum insn_code icode = can_extend_p (mto, mfrom, unsignedp);
return GEN_FCN (icode) (x, y);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* can_fix_p and can_float_p say whether the target machine
can directly convert a given fixed point type to
a given floating point type, or vice versa.
The returned value is the CODE_FOR_... value to use,
or CODE_FOR_nothing if these modes cannot be directly converted.
*TRUNCP_PTR is set to 1 if it is necessary to output
an explicit FTRUNC insn before the fix insn; otherwise 0. */
static enum insn_code
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
can_fix_p (enum machine_mode fixmode, enum machine_mode fltmode,
int unsignedp, int *truncp_ptr)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
convert_optab tab;
enum insn_code icode;
tab = unsignedp ? ufixtrunc_optab : sfixtrunc_optab;
icode = tab->handlers[fixmode][fltmode].insn_code;
if (icode != CODE_FOR_nothing)
{
*truncp_ptr = 0;
return icode;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
/* FIXME: This requires a port to define both FIX and FTRUNC pattern
for this to work. We need to rework the fix* and ftrunc* patterns
and documentation. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
tab = unsignedp ? ufix_optab : sfix_optab;
icode = tab->handlers[fixmode][fltmode].insn_code;
if (icode != CODE_FOR_nothing
&& ftrunc_optab->handlers[fltmode].insn_code != CODE_FOR_nothing)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
*truncp_ptr = 1;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
return icode;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
*truncp_ptr = 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 CODE_FOR_nothing;
}
static enum insn_code
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
can_float_p (enum machine_mode fltmode, enum machine_mode fixmode,
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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
convert_optab tab;
tab = unsignedp ? ufloat_optab : sfloat_optab;
return tab->handlers[fltmode][fixmode].insn_code;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 code to convert FROM to floating point
and store in TO. FROM must be fixed point and not VOIDmode.
UNSIGNEDP nonzero means regard FROM as unsigned.
Normally this is done by correcting the final value
if it is negative. */
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_float (rtx to, rtx from, 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
{
enum insn_code icode;
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 target = to;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 fmode, imode;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
bool can_do_signed = 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
/* Crash now, because we won't be able to decide which mode to use. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (GET_MODE (from) != 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
/* Look for an insn to do the conversion. Do it in the specified
modes if possible; otherwise convert either input, output or both to
wider mode. If the integer mode is wider than the mode of FROM,
we can do the conversion signed even if the input is unsigned. */
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
for (fmode = GET_MODE (to); fmode != VOIDmode;
fmode = GET_MODE_WIDER_MODE (fmode))
for (imode = GET_MODE (from); imode != VOIDmode;
imode = GET_MODE_WIDER_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
{
int doing_unsigned = 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 (fmode != GET_MODE (to)
&& significand_size (fmode) < GET_MODE_BITSIZE (GET_MODE (from)))
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
icode = can_float_p (fmode, imode, unsignedp);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (icode == CODE_FOR_nothing && unsignedp)
{
enum insn_code scode = can_float_p (fmode, imode, 0);
if (scode != CODE_FOR_nothing)
can_do_signed = true;
if (imode != GET_MODE (from))
icode = scode, doing_unsigned = 0;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (icode != CODE_FOR_nothing)
{
if (imode != GET_MODE (from))
from = convert_to_mode (imode, from, unsignedp);
if (fmode != GET_MODE (to))
target = gen_reg_rtx (fmode);
emit_unop_insn (icode, target, from,
doing_unsigned ? UNSIGNED_FLOAT : FLOAT);
if (target != to)
convert_move (to, target, 0);
return;
}
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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Unsigned integer, and no way to convert directly. For binary
floating point modes, convert as signed, then conditionally adjust
the result. */
if (unsignedp && can_do_signed && !DECIMAL_FLOAT_MODE_P (GET_MODE (to)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 label = gen_label_rtx ();
rtx temp;
REAL_VALUE_TYPE offset;
/* Look for a usable floating mode FMODE wider than the source and at
least as wide as the target. Using FMODE will avoid rounding woes
with unsigned values greater than the signed maximum value. */
for (fmode = GET_MODE (to); fmode != VOIDmode;
fmode = GET_MODE_WIDER_MODE (fmode))
if (GET_MODE_BITSIZE (GET_MODE (from)) < GET_MODE_BITSIZE (fmode)
&& can_float_p (fmode, GET_MODE (from), 0) != CODE_FOR_nothing)
break;
if (fmode == VOIDmode)
{
/* There is no such mode. Pretend the target is wide enough. */
fmode = GET_MODE (to);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Avoid double-rounding when TO is narrower than FROM. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 ((significand_size (fmode) + 1)
< GET_MODE_BITSIZE (GET_MODE (from)))
{
rtx temp1;
rtx neglabel = gen_label_rtx ();
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Don't use TARGET if it isn't a register, is a hard register,
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
or is the wrong mode. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!REG_P (target)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
|| REGNO (target) < FIRST_PSEUDO_REGISTER
|| GET_MODE (target) != fmode)
target = gen_reg_rtx (fmode);
imode = GET_MODE (from);
do_pending_stack_adjust ();
/* Test whether the sign bit is set. */
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 (from, const0_rtx, LT, NULL_RTX, imode,
0, neglabel);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 sign bit is not set. Convert as signed. */
expand_float (target, from, 0);
emit_jump_insn (gen_jump (label));
emit_barrier ();
/* The sign bit is set.
Convert to a usable (positive signed) value by shifting right
one bit, while remembering if a nonzero bit was shifted
out; i.e., compute (from & 1) | (from >> 1). */
emit_label (neglabel);
temp = expand_binop (imode, and_optab, from, const1_rtx,
NULL_RTX, 1, OPTAB_LIB_WIDEN);
temp1 = expand_shift (RSHIFT_EXPR, imode, from, integer_one_node,
NULL_RTX, 1);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
temp = expand_binop (imode, ior_optab, temp, temp1, temp, 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
OPTAB_LIB_WIDEN);
expand_float (target, temp, 0);
/* Multiply by 2 to undo the shift above. */
temp = expand_binop (fmode, add_optab, target, target,
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
target, 0, OPTAB_LIB_WIDEN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (temp != target)
emit_move_insn (target, temp);
do_pending_stack_adjust ();
emit_label (label);
goto done;
}
}
/* If we are about to do some arithmetic to correct for an
unsigned operand, do it in a pseudo-register. */
if (GET_MODE (to) != fmode
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
|| !REG_P (to) || REGNO (to) < FIRST_PSEUDO_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
target = gen_reg_rtx (fmode);
/* Convert as signed integer to floating. */
expand_float (target, from, 0);
/* If FROM is negative (and therefore TO is negative),
correct its value by 2**bitwidth. */
do_pending_stack_adjust ();
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
emit_cmp_and_jump_insns (from, const0_rtx, GE, NULL_RTX, GET_MODE (from),
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
0, 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
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
real_2expN (&offset, GET_MODE_BITSIZE (GET_MODE (from)));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
temp = expand_binop (fmode, add_optab, target,
CONST_DOUBLE_FROM_REAL_VALUE (offset, fmode),
target, 0, OPTAB_LIB_WIDEN);
if (temp != target)
emit_move_insn (target, temp);
do_pending_stack_adjust ();
emit_label (label);
goto done;
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* No hardware instruction available; call a library routine. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
rtx libfunc;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 insns;
rtx value;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
convert_optab tab = unsignedp ? ufloat_optab : sfloat_optab;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (GET_MODE (from)) < GET_MODE_SIZE (SImode))
from = convert_to_mode (SImode, from, unsignedp);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
libfunc = tab->handlers[GET_MODE (to)][GET_MODE (from)].libfunc;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (libfunc);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
start_sequence ();
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
value = emit_library_call_value (libfunc, NULL_RTX, LCT_CONST,
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 (to), 1, from,
GET_MODE (from));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
insns = get_insns ();
end_sequence ();
emit_libcall_block (insns, target, value,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
gen_rtx_FLOAT (GET_MODE (to), from));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
done:
/* Copy result to requested destination
if we have been computing in a temp location. */
if (target != to)
{
if (GET_MODE (target) == GET_MODE (to))
emit_move_insn (to, target);
else
convert_move (to, target, 0);
}
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Generate code to convert FROM to fixed point and store in TO. FROM
must be floating point. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expand_fix (rtx to, rtx from, 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
{
enum insn_code icode;
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 target = to;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 fmode, imode;
int must_trunc = 0;
/* We first try to find a pair of modes, one real and one integer, at
least as wide as FROM and TO, respectively, in which we can open-code
this conversion. If the integer mode is wider than the mode of TO,
we can do the conversion either signed or unsigned. */
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 (fmode = GET_MODE (from); fmode != VOIDmode;
fmode = GET_MODE_WIDER_MODE (fmode))
for (imode = GET_MODE (to); imode != VOIDmode;
imode = GET_MODE_WIDER_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
{
int doing_unsigned = unsignedp;
icode = can_fix_p (imode, fmode, unsignedp, &must_trunc);
if (icode == CODE_FOR_nothing && imode != GET_MODE (to) && unsignedp)
icode = can_fix_p (imode, fmode, 0, &must_trunc), doing_unsigned = 0;
if (icode != CODE_FOR_nothing)
{
if (fmode != GET_MODE (from))
from = convert_to_mode (fmode, from, 0);
if (must_trunc)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
{
rtx temp = gen_reg_rtx (GET_MODE (from));
from = expand_unop (GET_MODE (from), ftrunc_optab, from,
temp, 0);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (imode != GET_MODE (to))
target = gen_reg_rtx (imode);
emit_unop_insn (icode, target, from,
doing_unsigned ? UNSIGNED_FIX : FIX);
if (target != to)
convert_move (to, target, unsignedp);
return;
}
}
/* For an unsigned conversion, there is one more way to do it.
If we have a signed conversion, we generate code that compares
the real value to the largest representable positive number. If if
is smaller, the conversion is done normally. Otherwise, subtract
one plus the highest signed number, convert, and add it back.
We only need to check all real modes, since we know we didn't find
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
anything with a wider integer mode.
This code used to extend FP value into mode wider than the destination.
This is not needed. Consider, for instance conversion from SFmode
into DImode.
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
The hot path through the code is dealing with inputs smaller than 2^63
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
and doing just the conversion, so there is no bits to lose.
In the other path we know the value is positive in the range 2^63..2^64-1
inclusive. (as for other imput overflow happens and result is undefined)
So we know that the most important bit set in mantissa corresponds to
2^63. The subtraction of 2^63 should not generate any rounding as it
simply clears out that bit. The rest is trivial. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (unsignedp && GET_MODE_BITSIZE (GET_MODE (to)) <= HOST_BITS_PER_WIDE_INT)
for (fmode = GET_MODE (from); fmode != VOIDmode;
fmode = GET_MODE_WIDER_MODE (fmode))
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (CODE_FOR_nothing != can_fix_p (GET_MODE (to), fmode, 0,
&must_trunc))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 bitsize;
REAL_VALUE_TYPE offset;
rtx limit, lab1, lab2, insn;
bitsize = GET_MODE_BITSIZE (GET_MODE (to));
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
real_2expN (&offset, bitsize - 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
limit = CONST_DOUBLE_FROM_REAL_VALUE (offset, fmode);
lab1 = gen_label_rtx ();
lab2 = gen_label_rtx ();
if (fmode != GET_MODE (from))
from = convert_to_mode (fmode, from, 0);
/* See if we need to do the subtraction. */
do_pending_stack_adjust ();
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
emit_cmp_and_jump_insns (from, limit, GE, NULL_RTX, GET_MODE (from),
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
0, lab1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 not, do the signed "fix" and branch around fixup code. */
expand_fix (to, from, 0);
emit_jump_insn (gen_jump (lab2));
emit_barrier ();
/* Otherwise, subtract 2**(N-1), convert to signed number,
then add 2**(N-1). Do the addition using XOR since this
will often generate better code. */
emit_label (lab1);
target = expand_binop (GET_MODE (from), sub_optab, from, limit,
NULL_RTX, 0, OPTAB_LIB_WIDEN);
expand_fix (to, target, 0);
target = expand_binop (GET_MODE (to), xor_optab, to,
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
gen_int_mode
((HOST_WIDE_INT) 1 << (bitsize - 1),
GET_MODE (to)),
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
to, 1, OPTAB_LIB_WIDEN);
if (target != to)
emit_move_insn (to, target);
emit_label (lab2);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (mov_optab->handlers[(int) GET_MODE (to)].insn_code
!= CODE_FOR_nothing)
{
/* Make a place for a REG_NOTE and add it. */
insn = emit_move_insn (to, to);
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
set_unique_reg_note (insn,
REG_EQUAL,
gen_rtx_fmt_e (UNSIGNED_FIX,
GET_MODE (to),
copy_rtx (from)));
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
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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;
}
/* We can't do it with an insn, so use a library call. But first ensure
that the mode of TO is at least as wide as SImode, since those are the
only library calls we know about. */
if (GET_MODE_SIZE (GET_MODE (to)) < GET_MODE_SIZE (SImode))
{
target = gen_reg_rtx (SImode);
expand_fix (target, from, unsignedp);
}
else
{
rtx insns;
rtx value;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
rtx libfunc;
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
convert_optab tab = unsignedp ? ufix_optab : sfix_optab;
libfunc = tab->handlers[GET_MODE (to)][GET_MODE (from)].libfunc;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (libfunc);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
start_sequence ();
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
value = emit_library_call_value (libfunc, NULL_RTX, LCT_CONST,
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 (to), 1, from,
GET_MODE (from));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
insns = get_insns ();
end_sequence ();
emit_libcall_block (insns, target, value,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
gen_rtx_fmt_e (unsignedp ? UNSIGNED_FIX : FIX,
GET_MODE (to), from));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (target != to)
{
if (GET_MODE (to) == GET_MODE (target))
emit_move_insn (to, target);
else
convert_move (to, target, 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
/* Report whether we have an instruction to perform the operation
specified by CODE on operands of mode MODE. */
int
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
have_insn_for (enum rtx_code code, enum machine_mode 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
{
return (code_to_optab[(int) code] != 0
&& (code_to_optab[(int) code]->handlers[(int) mode].insn_code
!= CODE_FOR_nothing));
}
/* Create a blank optab. */
static optab
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
new_optab (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
{
int i;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
optab op = ggc_alloc (sizeof (struct optab));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 < NUM_MACHINE_MODES; i++)
{
op->handlers[i].insn_code = CODE_FOR_nothing;
op->handlers[i].libfunc = 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
return 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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
static convert_optab
new_convert_optab (void)
{
int i, j;
convert_optab op = ggc_alloc (sizeof (struct convert_optab));
for (i = 0; i < NUM_MACHINE_MODES; i++)
for (j = 0; j < NUM_MACHINE_MODES; j++)
{
op->handlers[i][j].insn_code = CODE_FOR_nothing;
op->handlers[i][j].libfunc = 0;
}
return op;
}
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
/* Same, but fill in its code as CODE, and write it into the
code_to_optab table. */
static inline optab
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
init_optab (enum rtx_code 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
{
optab op = new_optab ();
op->code = code;
code_to_optab[(int) code] = op;
return op;
}
/* Same, but fill in its code as CODE, and do _not_ write it into
the code_to_optab table. */
static inline optab
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
init_optabv (enum rtx_code 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
{
optab op = new_optab ();
op->code = code;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 op;
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Conversion optabs never go in the code_to_optab table. */
static inline convert_optab
init_convert_optab (enum rtx_code code)
{
convert_optab op = new_convert_optab ();
op->code = code;
return 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
/* Initialize the libfunc fields of an entire group of entries in some
optab. Each entry is set equal to a string consisting of a leading
pair of underscores followed by a generic operation name followed by
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
a mode name (downshifted to lowercase) followed by a single character
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
representing the number of operands for the given operation (which is
usually one of the characters '2', '3', or '4').
OPTABLE is the table in which libfunc fields are to be initialized.
FIRST_MODE is the first machine mode index in the given optab to
initialize.
LAST_MODE is the last machine mode index in the given optab to
initialize.
OPNAME is the generic (string) name of the operation.
SUFFIX is the character which specifies the number of operands for
the given generic operation.
*/
static void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
init_libfuncs (optab optable, int first_mode, int last_mode,
const char *opname, int suffix)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 mode;
unsigned opname_len = strlen (opname);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 (mode = first_mode; (int) mode <= (int) last_mode;
mode = (enum machine_mode) ((int) mode + 1))
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
const char *mname = GET_MODE_NAME (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
unsigned mname_len = strlen (mname);
char *libfunc_name = alloca (2 + opname_len + mname_len + 1 + 1);
char *p;
const char *q;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
p = libfunc_name;
*p++ = '_';
*p++ = '_';
for (q = opname; *q; )
*p++ = *q++;
for (q = mname; *q; 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
*p++ = TOLOWER (*q);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
*p++ = suffix;
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 = '\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
optable->handlers[(int) mode].libfunc
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
= init_one_libfunc (ggc_alloc_string (libfunc_name, p - libfunc_name));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
/* Initialize the libfunc fields of an entire group of entries in some
optab which correspond to all integer mode operations. The parameters
have the same meaning as similarly named ones for the `init_libfuncs'
routine. (See above). */
static void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
init_integral_libfuncs (optab optable, const char *opname, int suffix)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
int maxsize = 2*BITS_PER_WORD;
if (maxsize < LONG_LONG_TYPE_SIZE)
maxsize = LONG_LONG_TYPE_SIZE;
init_libfuncs (optable, word_mode,
mode_for_size (maxsize, MODE_INT, 0),
opname, suffix);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* Initialize the libfunc fields of an entire group of entries in some
optab which correspond to all real mode operations. The parameters
have the same meaning as similarly named ones for the `init_libfuncs'
routine. (See above). */
static void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
init_floating_libfuncs (optab optable, const char *opname, int suffix)
{
init_libfuncs (optable, MIN_MODE_FLOAT, MAX_MODE_FLOAT, opname, suffix);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
init_libfuncs (optable, MIN_MODE_DECIMAL_FLOAT, MAX_MODE_DECIMAL_FLOAT,
opname, suffix);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
}
/* Initialize the libfunc fields of an entire group of entries of an
inter-mode-class conversion optab. The string formation rules are
similar to the ones for init_libfuncs, above, but instead of having
a mode name and an operand count these functions have two mode names
and no operand count. */
static void
init_interclass_conv_libfuncs (convert_optab tab, const char *opname,
enum mode_class from_class,
enum mode_class to_class)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
enum machine_mode first_from_mode = GET_CLASS_NARROWEST_MODE (from_class);
enum machine_mode first_to_mode = GET_CLASS_NARROWEST_MODE (to_class);
size_t opname_len = strlen (opname);
size_t max_mname_len = 0;
enum machine_mode fmode, tmode;
const char *fname, *tname;
const char *q;
char *libfunc_name, *suffix;
char *p;
for (fmode = first_from_mode;
fmode != VOIDmode;
fmode = GET_MODE_WIDER_MODE (fmode))
max_mname_len = MAX (max_mname_len, strlen (GET_MODE_NAME (fmode)));
for (tmode = first_to_mode;
tmode != VOIDmode;
tmode = GET_MODE_WIDER_MODE (tmode))
max_mname_len = MAX (max_mname_len, strlen (GET_MODE_NAME (tmode)));
libfunc_name = alloca (2 + opname_len + 2*max_mname_len + 1 + 1);
libfunc_name[0] = '_';
libfunc_name[1] = '_';
memcpy (&libfunc_name[2], opname, opname_len);
suffix = libfunc_name + opname_len + 2;
for (fmode = first_from_mode; fmode != VOIDmode;
fmode = GET_MODE_WIDER_MODE (fmode))
for (tmode = first_to_mode; tmode != VOIDmode;
tmode = GET_MODE_WIDER_MODE (tmode))
{
fname = GET_MODE_NAME (fmode);
tname = GET_MODE_NAME (tmode);
p = suffix;
for (q = fname; *q; p++, q++)
*p = TOLOWER (*q);
for (q = tname; *q; p++, q++)
*p = TOLOWER (*q);
*p = '\0';
tab->handlers[tmode][fmode].libfunc
= init_one_libfunc (ggc_alloc_string (libfunc_name,
p - libfunc_name));
}
}
/* Initialize the libfunc fields of an entire group of entries of an
intra-mode-class conversion optab. The string formation rules are
similar to the ones for init_libfunc, above. WIDENING says whether
the optab goes from narrow to wide modes or vice versa. These functions
have two mode names _and_ an operand count. */
static void
init_intraclass_conv_libfuncs (convert_optab tab, const char *opname,
enum mode_class class, bool widening)
{
enum machine_mode first_mode = GET_CLASS_NARROWEST_MODE (class);
size_t opname_len = strlen (opname);
size_t max_mname_len = 0;
enum machine_mode nmode, wmode;
const char *nname, *wname;
const char *q;
char *libfunc_name, *suffix;
char *p;
for (nmode = first_mode; nmode != VOIDmode;
nmode = GET_MODE_WIDER_MODE (nmode))
max_mname_len = MAX (max_mname_len, strlen (GET_MODE_NAME (nmode)));
libfunc_name = alloca (2 + opname_len + 2*max_mname_len + 1 + 1);
libfunc_name[0] = '_';
libfunc_name[1] = '_';
memcpy (&libfunc_name[2], opname, opname_len);
suffix = libfunc_name + opname_len + 2;
for (nmode = first_mode; nmode != VOIDmode;
nmode = GET_MODE_WIDER_MODE (nmode))
for (wmode = GET_MODE_WIDER_MODE (nmode); wmode != VOIDmode;
wmode = GET_MODE_WIDER_MODE (wmode))
{
nname = GET_MODE_NAME (nmode);
wname = GET_MODE_NAME (wmode);
p = suffix;
for (q = widening ? nname : wname; *q; p++, q++)
*p = TOLOWER (*q);
for (q = widening ? wname : nname; *q; p++, q++)
*p = TOLOWER (*q);
*p++ = '2';
*p = '\0';
tab->handlers[widening ? wmode : nmode]
[widening ? nmode : wmode].libfunc
= init_one_libfunc (ggc_alloc_string (libfunc_name,
p - libfunc_name));
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
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
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
init_one_libfunc (const char *name)
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
rtx symbol;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
/* Create a FUNCTION_DECL that can be passed to
targetm.encode_section_info. */
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
/* ??? We don't have any type information except for this is
a function. Pretend this is "int foo()". */
tree decl = build_decl (FUNCTION_DECL, get_identifier (name),
build_function_type (integer_type_node, NULL_TREE));
DECL_ARTIFICIAL (decl) = 1;
DECL_EXTERNAL (decl) = 1;
TREE_PUBLIC (decl) = 1;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
symbol = XEXP (DECL_RTL (decl), 0);
/* Zap the nonsensical SYMBOL_REF_DECL for this. What we're left with
are the flags assigned by targetm.encode_section_info. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
SET_SYMBOL_REF_DECL (symbol, 0);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
return symbol;
}
/* Call this to reset the function entry for one optab (OPTABLE) in mode
MODE to NAME, which should be either 0 or a string constant. */
void
set_optab_libfunc (optab optable, enum machine_mode mode, const char *name)
{
if (name)
optable->handlers[mode].libfunc = init_one_libfunc (name);
else
optable->handlers[mode].libfunc = 0;
}
/* Call this to reset the function entry for one conversion optab
(OPTABLE) from mode FMODE to mode TMODE to NAME, which should be
either 0 or a string constant. */
void
set_conv_libfunc (convert_optab optable, enum machine_mode tmode,
enum machine_mode fmode, const char *name)
{
if (name)
optable->handlers[tmode][fmode].libfunc = init_one_libfunc (name);
else
optable->handlers[tmode][fmode].libfunc = 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
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Call this once to initialize the contents of the optabs
appropriately for the current target machine. */
void
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
init_optabs (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
{
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
unsigned 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
/* Start by initializing all tables to contain CODE_FOR_nothing. */
for (i = 0; i < NUM_RTX_CODE; i++)
setcc_gen_code[i] = CODE_FOR_nothing;
#ifdef HAVE_conditional_move
for (i = 0; i < NUM_MACHINE_MODES; i++)
movcc_gen_code[i] = CODE_FOR_nothing;
#endif
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
for (i = 0; i < NUM_MACHINE_MODES; i++)
{
vcond_gen_code[i] = CODE_FOR_nothing;
vcondu_gen_code[i] = CODE_FOR_nothing;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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_optab = init_optab (PLUS);
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
addv_optab = init_optabv (PLUS);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
sub_optab = init_optab (MINUS);
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
subv_optab = init_optabv (MINUS);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
smul_optab = init_optab (MULT);
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
smulv_optab = init_optabv (MULT);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
smul_highpart_optab = init_optab (UNKNOWN);
umul_highpart_optab = init_optab (UNKNOWN);
smul_widen_optab = init_optab (UNKNOWN);
umul_widen_optab = init_optab (UNKNOWN);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
usmul_widen_optab = init_optab (UNKNOWN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
sdiv_optab = init_optab (DIV);
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
sdivv_optab = init_optabv (DIV);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
sdivmod_optab = init_optab (UNKNOWN);
udiv_optab = init_optab (UDIV);
udivmod_optab = init_optab (UNKNOWN);
smod_optab = init_optab (MOD);
umod_optab = init_optab (UMOD);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
fmod_optab = init_optab (UNKNOWN);
drem_optab = init_optab (UNKNOWN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
ftrunc_optab = init_optab (UNKNOWN);
and_optab = init_optab (AND);
ior_optab = init_optab (IOR);
xor_optab = init_optab (XOR);
ashl_optab = init_optab (ASHIFT);
ashr_optab = init_optab (ASHIFTRT);
lshr_optab = init_optab (LSHIFTRT);
rotl_optab = init_optab (ROTATE);
rotr_optab = init_optab (ROTATERT);
smin_optab = init_optab (SMIN);
smax_optab = init_optab (SMAX);
umin_optab = init_optab (UMIN);
umax_optab = init_optab (UMAX);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
pow_optab = init_optab (UNKNOWN);
atan2_optab = init_optab (UNKNOWN);
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
/* These three have codes assigned exclusively for the sake of
have_insn_for. */
mov_optab = init_optab (SET);
movstrict_optab = init_optab (STRICT_LOW_PART);
cmp_optab = init_optab (COMPARE);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
ucmp_optab = init_optab (UNKNOWN);
tst_optab = init_optab (UNKNOWN);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
eq_optab = init_optab (EQ);
ne_optab = init_optab (NE);
gt_optab = init_optab (GT);
ge_optab = init_optab (GE);
lt_optab = init_optab (LT);
le_optab = init_optab (LE);
unord_optab = init_optab (UNORDERED);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
neg_optab = init_optab (NEG);
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
negv_optab = init_optabv (NEG);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
abs_optab = init_optab (ABS);
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
absv_optab = init_optabv (ABS);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
addcc_optab = init_optab (UNKNOWN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
one_cmpl_optab = init_optab (NOT);
ffs_optab = init_optab (FFS);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
clz_optab = init_optab (CLZ);
ctz_optab = init_optab (CTZ);
popcount_optab = init_optab (POPCOUNT);
parity_optab = init_optab (PARITY);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
sqrt_optab = init_optab (SQRT);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
floor_optab = init_optab (UNKNOWN);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
lfloor_optab = init_optab (UNKNOWN);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
ceil_optab = init_optab (UNKNOWN);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
lceil_optab = init_optab (UNKNOWN);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
round_optab = init_optab (UNKNOWN);
btrunc_optab = init_optab (UNKNOWN);
nearbyint_optab = init_optab (UNKNOWN);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
rint_optab = init_optab (UNKNOWN);
lrint_optab = init_optab (UNKNOWN);
sincos_optab = init_optab (UNKNOWN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
sin_optab = init_optab (UNKNOWN);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
asin_optab = init_optab (UNKNOWN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
cos_optab = init_optab (UNKNOWN);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
acos_optab = init_optab (UNKNOWN);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
exp_optab = init_optab (UNKNOWN);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
exp10_optab = init_optab (UNKNOWN);
exp2_optab = init_optab (UNKNOWN);
expm1_optab = init_optab (UNKNOWN);
ldexp_optab = init_optab (UNKNOWN);
logb_optab = init_optab (UNKNOWN);
ilogb_optab = init_optab (UNKNOWN);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
log_optab = init_optab (UNKNOWN);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
log10_optab = init_optab (UNKNOWN);
log2_optab = init_optab (UNKNOWN);
log1p_optab = init_optab (UNKNOWN);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
tan_optab = init_optab (UNKNOWN);
atan_optab = init_optab (UNKNOWN);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
copysign_optab = init_optab (UNKNOWN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
strlen_optab = init_optab (UNKNOWN);
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
cbranch_optab = init_optab (UNKNOWN);
cmov_optab = init_optab (UNKNOWN);
cstore_optab = init_optab (UNKNOWN);
push_optab = init_optab (UNKNOWN);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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
reduc_smax_optab = init_optab (UNKNOWN);
reduc_umax_optab = init_optab (UNKNOWN);
reduc_smin_optab = init_optab (UNKNOWN);
reduc_umin_optab = init_optab (UNKNOWN);
reduc_splus_optab = init_optab (UNKNOWN);
reduc_uplus_optab = init_optab (UNKNOWN);
ssum_widen_optab = init_optab (UNKNOWN);
usum_widen_optab = init_optab (UNKNOWN);
sdot_prod_optab = init_optab (UNKNOWN);
udot_prod_optab = init_optab (UNKNOWN);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
vec_extract_optab = init_optab (UNKNOWN);
vec_set_optab = init_optab (UNKNOWN);
vec_init_optab = init_optab (UNKNOWN);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
vec_shl_optab = init_optab (UNKNOWN);
vec_shr_optab = init_optab (UNKNOWN);
vec_realign_load_optab = init_optab (UNKNOWN);
movmisalign_optab = init_optab (UNKNOWN);
powi_optab = init_optab (UNKNOWN);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Conversions. */
sext_optab = init_convert_optab (SIGN_EXTEND);
zext_optab = init_convert_optab (ZERO_EXTEND);
trunc_optab = init_convert_optab (TRUNCATE);
sfix_optab = init_convert_optab (FIX);
ufix_optab = init_convert_optab (UNSIGNED_FIX);
sfixtrunc_optab = init_convert_optab (UNKNOWN);
ufixtrunc_optab = init_convert_optab (UNKNOWN);
sfloat_optab = init_convert_optab (FLOAT);
ufloat_optab = init_convert_optab (UNSIGNED_FLOAT);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 < NUM_MACHINE_MODES; i++)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
movmem_optab[i] = CODE_FOR_nothing;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
cmpstr_optab[i] = CODE_FOR_nothing;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
cmpstrn_optab[i] = CODE_FOR_nothing;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
cmpmem_optab[i] = CODE_FOR_nothing;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
setmem_optab[i] = CODE_FOR_nothing;
sync_add_optab[i] = CODE_FOR_nothing;
sync_sub_optab[i] = CODE_FOR_nothing;
sync_ior_optab[i] = CODE_FOR_nothing;
sync_and_optab[i] = CODE_FOR_nothing;
sync_xor_optab[i] = CODE_FOR_nothing;
sync_nand_optab[i] = CODE_FOR_nothing;
sync_old_add_optab[i] = CODE_FOR_nothing;
sync_old_sub_optab[i] = CODE_FOR_nothing;
sync_old_ior_optab[i] = CODE_FOR_nothing;
sync_old_and_optab[i] = CODE_FOR_nothing;
sync_old_xor_optab[i] = CODE_FOR_nothing;
sync_old_nand_optab[i] = CODE_FOR_nothing;
sync_new_add_optab[i] = CODE_FOR_nothing;
sync_new_sub_optab[i] = CODE_FOR_nothing;
sync_new_ior_optab[i] = CODE_FOR_nothing;
sync_new_and_optab[i] = CODE_FOR_nothing;
sync_new_xor_optab[i] = CODE_FOR_nothing;
sync_new_nand_optab[i] = CODE_FOR_nothing;
sync_compare_and_swap[i] = CODE_FOR_nothing;
sync_compare_and_swap_cc[i] = CODE_FOR_nothing;
sync_lock_test_and_set[i] = CODE_FOR_nothing;
sync_lock_release[i] = CODE_FOR_nothing;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
reload_in_optab[i] = reload_out_optab[i] = CODE_FOR_nothing;
}
/* Fill in the optabs with the insns we support. */
init_all_optabs ();
/* Initialize the optabs with the names of the library functions. */
init_integral_libfuncs (add_optab, "add", '3');
init_floating_libfuncs (add_optab, "add", '3');
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
init_integral_libfuncs (addv_optab, "addv", '3');
init_floating_libfuncs (addv_optab, "add", '3');
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
init_integral_libfuncs (sub_optab, "sub", '3');
init_floating_libfuncs (sub_optab, "sub", '3');
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
init_integral_libfuncs (subv_optab, "subv", '3');
init_floating_libfuncs (subv_optab, "sub", '3');
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
init_integral_libfuncs (smul_optab, "mul", '3');
init_floating_libfuncs (smul_optab, "mul", '3');
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
init_integral_libfuncs (smulv_optab, "mulv", '3');
init_floating_libfuncs (smulv_optab, "mul", '3');
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
init_integral_libfuncs (sdiv_optab, "div", '3');
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
init_floating_libfuncs (sdiv_optab, "div", '3');
init_integral_libfuncs (sdivv_optab, "divv", '3');
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
init_integral_libfuncs (udiv_optab, "udiv", '3');
init_integral_libfuncs (sdivmod_optab, "divmod", '4');
init_integral_libfuncs (udivmod_optab, "udivmod", '4');
init_integral_libfuncs (smod_optab, "mod", '3');
init_integral_libfuncs (umod_optab, "umod", '3');
init_floating_libfuncs (ftrunc_optab, "ftrunc", '2');
init_integral_libfuncs (and_optab, "and", '3');
init_integral_libfuncs (ior_optab, "ior", '3');
init_integral_libfuncs (xor_optab, "xor", '3');
init_integral_libfuncs (ashl_optab, "ashl", '3');
init_integral_libfuncs (ashr_optab, "ashr", '3');
init_integral_libfuncs (lshr_optab, "lshr", '3');
init_integral_libfuncs (smin_optab, "min", '3');
init_floating_libfuncs (smin_optab, "min", '3');
init_integral_libfuncs (smax_optab, "max", '3');
init_floating_libfuncs (smax_optab, "max", '3');
init_integral_libfuncs (umin_optab, "umin", '3');
init_integral_libfuncs (umax_optab, "umax", '3');
init_integral_libfuncs (neg_optab, "neg", '2');
init_floating_libfuncs (neg_optab, "neg", '2');
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
init_integral_libfuncs (negv_optab, "negv", '2');
init_floating_libfuncs (negv_optab, "neg", '2');
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
init_integral_libfuncs (one_cmpl_optab, "one_cmpl", '2');
init_integral_libfuncs (ffs_optab, "ffs", '2');
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
init_integral_libfuncs (clz_optab, "clz", '2');
init_integral_libfuncs (ctz_optab, "ctz", '2');
init_integral_libfuncs (popcount_optab, "popcount", '2');
init_integral_libfuncs (parity_optab, "parity", '2');
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Comparison libcalls for integers MUST come in pairs,
signed/unsigned. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
init_integral_libfuncs (cmp_optab, "cmp", '2');
init_integral_libfuncs (ucmp_optab, "ucmp", '2');
init_floating_libfuncs (cmp_optab, "cmp", '2');
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* EQ etc are floating point only. */
init_floating_libfuncs (eq_optab, "eq", '2');
init_floating_libfuncs (ne_optab, "ne", '2');
init_floating_libfuncs (gt_optab, "gt", '2');
init_floating_libfuncs (ge_optab, "ge", '2');
init_floating_libfuncs (lt_optab, "lt", '2');
init_floating_libfuncs (le_optab, "le", '2');
init_floating_libfuncs (unord_optab, "unord", '2');
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
init_floating_libfuncs (powi_optab, "powi", '2');
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Conversions. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
init_interclass_conv_libfuncs (sfloat_optab, "float",
MODE_INT, MODE_FLOAT);
init_interclass_conv_libfuncs (sfloat_optab, "float",
MODE_INT, MODE_DECIMAL_FLOAT);
init_interclass_conv_libfuncs (ufloat_optab, "floatun",
MODE_INT, MODE_FLOAT);
init_interclass_conv_libfuncs (ufloat_optab, "floatun",
MODE_INT, MODE_DECIMAL_FLOAT);
init_interclass_conv_libfuncs (sfix_optab, "fix",
MODE_FLOAT, MODE_INT);
init_interclass_conv_libfuncs (sfix_optab, "fix",
MODE_DECIMAL_FLOAT, MODE_INT);
init_interclass_conv_libfuncs (ufix_optab, "fixuns",
MODE_FLOAT, MODE_INT);
init_interclass_conv_libfuncs (ufix_optab, "fixuns",
MODE_DECIMAL_FLOAT, MODE_INT);
init_interclass_conv_libfuncs (ufloat_optab, "floatuns",
MODE_INT, MODE_DECIMAL_FLOAT);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* sext_optab is also used for FLOAT_EXTEND. */
init_intraclass_conv_libfuncs (sext_optab, "extend", MODE_FLOAT, true);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
init_intraclass_conv_libfuncs (sext_optab, "extend", MODE_DECIMAL_FLOAT, true);
init_interclass_conv_libfuncs (sext_optab, "extend", MODE_FLOAT, MODE_DECIMAL_FLOAT);
init_interclass_conv_libfuncs (sext_optab, "extend", MODE_DECIMAL_FLOAT, MODE_FLOAT);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
init_intraclass_conv_libfuncs (trunc_optab, "trunc", MODE_FLOAT, false);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
init_intraclass_conv_libfuncs (trunc_optab, "trunc", MODE_DECIMAL_FLOAT, false);
init_interclass_conv_libfuncs (trunc_optab, "trunc", MODE_FLOAT, MODE_DECIMAL_FLOAT);
init_interclass_conv_libfuncs (trunc_optab, "trunc", MODE_DECIMAL_FLOAT, MODE_FLOAT);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Use cabs for double complex abs, since systems generally have cabs.
Don't define any libcall for float complex, so that cabs will be used. */
if (complex_double_type_node)
abs_optab->handlers[TYPE_MODE (complex_double_type_node)].libfunc
= init_one_libfunc ("cabs");
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 ffs function operates on `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
ffs_optab->handlers[(int) mode_for_size (INT_TYPE_SIZE, MODE_INT, 0)].libfunc
= init_one_libfunc ("ffs");
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
abort_libfunc = init_one_libfunc ("abort");
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
memcpy_libfunc = init_one_libfunc ("memcpy");
memmove_libfunc = init_one_libfunc ("memmove");
memcmp_libfunc = init_one_libfunc ("memcmp");
memset_libfunc = init_one_libfunc ("memset");
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
setbits_libfunc = init_one_libfunc ("__setbits");
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 gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifndef DONT_USE_BUILTIN_SETJMP
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
setjmp_libfunc = init_one_libfunc ("__builtin_setjmp");
longjmp_libfunc = init_one_libfunc ("__builtin_longjmp");
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +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
setjmp_libfunc = init_one_libfunc ("setjmp");
longjmp_libfunc = init_one_libfunc ("longjmp");
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#endif
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
unwind_sjlj_register_libfunc = init_one_libfunc ("_Unwind_SjLj_Register");
unwind_sjlj_unregister_libfunc
= init_one_libfunc ("_Unwind_SjLj_Unregister");
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* For function entry/exit instrumentation. */
profile_function_entry_libfunc
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
= init_one_libfunc ("__cyg_profile_func_enter");
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
profile_function_exit_libfunc
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
= init_one_libfunc ("__cyg_profile_func_exit");
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
gcov_flush_libfunc = init_one_libfunc ("__gcov_flush");
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
if (HAVE_conditional_trap)
trap_rtx = gen_rtx_fmt_ee (EQ, VOIDmode, NULL_RTX, 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
/* Allow the target to add more libcalls or rename some, etc. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
targetm.init_libfuncs ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be 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 DEBUG
/* Print information about the current contents of the optabs on
STDERR. */
static void
debug_optab_libfuncs (void)
{
int i;
int j;
int k;
/* Dump the arithmetic optabs. */
for (i = 0; i != (int) OTI_MAX; i++)
for (j = 0; j < NUM_MACHINE_MODES; ++j)
{
optab o;
struct optab_handlers *h;
o = optab_table[i];
h = &o->handlers[j];
if (h->libfunc)
{
gcc_assert (GET_CODE (h->libfunc) = SYMBOL_REF);
fprintf (stderr, "%s\t%s:\t%s\n",
GET_RTX_NAME (o->code),
GET_MODE_NAME (j),
XSTR (h->libfunc, 0));
}
}
/* Dump the conversion optabs. */
for (i = 0; i < (int) COI_MAX; ++i)
for (j = 0; j < NUM_MACHINE_MODES; ++j)
for (k = 0; k < NUM_MACHINE_MODES; ++k)
{
convert_optab o;
struct optab_handlers *h;
o = &convert_optab_table[i];
h = &o->handlers[j][k];
if (h->libfunc)
{
gcc_assert (GET_CODE (h->libfunc) = SYMBOL_REF);
fprintf (stderr, "%s\t%s\t%s:\t%s\n",
GET_RTX_NAME (o->code),
GET_MODE_NAME (j),
GET_MODE_NAME (k),
XSTR (h->libfunc, 0));
}
}
}
#endif /* DEBUG */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Generate insns to trap with code TCODE if OP1 and OP2 satisfy condition
CODE. Return 0 on failure. */
rtx
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
gen_cond_trap (enum rtx_code code ATTRIBUTE_UNUSED, rtx op1,
rtx op2 ATTRIBUTE_UNUSED, rtx tcode ATTRIBUTE_UNUSED)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
enum machine_mode mode = GET_MODE (op1);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
enum insn_code icode;
rtx insn;
if (!HAVE_conditional_trap)
return 0;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (mode == VOIDmode)
return 0;
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
icode = cmp_optab->handlers[(int) mode].insn_code;
if (icode == CODE_FOR_nothing)
return 0;
start_sequence ();
op1 = prepare_operand (icode, op1, 0, mode, mode, 0);
Gcc 3.3.1-release.
2003-08-22 02:56:07 +00:00
op2 = prepare_operand (icode, op2, 1, mode, mode, 0);
if (!op1 || !op2)
{
end_sequence ();
return 0;
}
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
emit_insn (GEN_FCN (icode) (op1, op2));
PUT_CODE (trap_rtx, code);
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
gcc_assert (HAVE_conditional_trap);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
insn = gen_conditional_trap (trap_rtx, tcode);
if (insn)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
emit_insn (insn);
insn = get_insns ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
end_sequence ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
return insn;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
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
/* Return rtx code for TCODE. Use UNSIGNEDP to select signed
or unsigned operation code. */
static enum rtx_code
get_rtx_code (enum tree_code tcode, bool unsignedp)
{
enum rtx_code code;
switch (tcode)
{
case EQ_EXPR:
code = EQ;
break;
case NE_EXPR:
code = NE;
break;
case LT_EXPR:
code = unsignedp ? LTU : LT;
break;
case LE_EXPR:
code = unsignedp ? LEU : LE;
break;
case GT_EXPR:
code = unsignedp ? GTU : GT;
break;
case GE_EXPR:
code = unsignedp ? GEU : GE;
break;
case UNORDERED_EXPR:
code = UNORDERED;
break;
case ORDERED_EXPR:
code = ORDERED;
break;
case UNLT_EXPR:
code = UNLT;
break;
case UNLE_EXPR:
code = UNLE;
break;
case UNGT_EXPR:
code = UNGT;
break;
case UNGE_EXPR:
code = UNGE;
break;
case UNEQ_EXPR:
code = UNEQ;
break;
case LTGT_EXPR:
code = LTGT;
break;
default:
gcc_unreachable ();
}
return code;
}
/* Return comparison rtx for COND. Use UNSIGNEDP to select signed or
unsigned operators. Do not generate compare instruction. */
static rtx
vector_compare_rtx (tree cond, bool unsignedp, enum insn_code icode)
{
enum rtx_code rcode;
tree t_op0, t_op1;
rtx rtx_op0, rtx_op1;
/* This is unlikely. While generating VEC_COND_EXPR, auto vectorizer
ensures that condition is a relational operation. */
gcc_assert (COMPARISON_CLASS_P (cond));
rcode = get_rtx_code (TREE_CODE (cond), unsignedp);
t_op0 = TREE_OPERAND (cond, 0);
t_op1 = TREE_OPERAND (cond, 1);
/* Expand operands. */
rtx_op0 = expand_expr (t_op0, NULL_RTX, TYPE_MODE (TREE_TYPE (t_op0)), 1);
rtx_op1 = expand_expr (t_op1, NULL_RTX, TYPE_MODE (TREE_TYPE (t_op1)), 1);
if (!insn_data[icode].operand[4].predicate (rtx_op0, GET_MODE (rtx_op0))
&& GET_MODE (rtx_op0) != VOIDmode)
rtx_op0 = force_reg (GET_MODE (rtx_op0), rtx_op0);
if (!insn_data[icode].operand[5].predicate (rtx_op1, GET_MODE (rtx_op1))
&& GET_MODE (rtx_op1) != VOIDmode)
rtx_op1 = force_reg (GET_MODE (rtx_op1), rtx_op1);
return gen_rtx_fmt_ee (rcode, VOIDmode, rtx_op0, rtx_op1);
}
/* Return insn code for VEC_COND_EXPR EXPR. */
static inline enum insn_code
get_vcond_icode (tree expr, enum machine_mode mode)
{
enum insn_code icode = CODE_FOR_nothing;
if (TYPE_UNSIGNED (TREE_TYPE (expr)))
icode = vcondu_gen_code[mode];
else
icode = vcond_gen_code[mode];
return icode;
}
/* Return TRUE iff, appropriate vector insns are available
for vector cond expr expr in VMODE mode. */
bool
expand_vec_cond_expr_p (tree expr, enum machine_mode vmode)
{
if (get_vcond_icode (expr, vmode) == CODE_FOR_nothing)
return false;
return true;
}
/* Generate insns for VEC_COND_EXPR. */
rtx
expand_vec_cond_expr (tree vec_cond_expr, rtx target)
{
enum insn_code icode;
rtx comparison, rtx_op1, rtx_op2, cc_op0, cc_op1;
enum machine_mode mode = TYPE_MODE (TREE_TYPE (vec_cond_expr));
bool unsignedp = TYPE_UNSIGNED (TREE_TYPE (vec_cond_expr));
icode = get_vcond_icode (vec_cond_expr, mode);
if (icode == CODE_FOR_nothing)
return 0;
if (!target || !insn_data[icode].operand[0].predicate (target, mode))
target = gen_reg_rtx (mode);
/* Get comparison rtx. First expand both cond expr operands. */
comparison = vector_compare_rtx (TREE_OPERAND (vec_cond_expr, 0),
unsignedp, icode);
cc_op0 = XEXP (comparison, 0);
cc_op1 = XEXP (comparison, 1);
/* Expand both operands and force them in reg, if required. */
rtx_op1 = expand_expr (TREE_OPERAND (vec_cond_expr, 1),
NULL_RTX, VOIDmode, EXPAND_NORMAL);
if (!insn_data[icode].operand[1].predicate (rtx_op1, mode)
&& mode != VOIDmode)
rtx_op1 = force_reg (mode, rtx_op1);
rtx_op2 = expand_expr (TREE_OPERAND (vec_cond_expr, 2),
NULL_RTX, VOIDmode, EXPAND_NORMAL);
if (!insn_data[icode].operand[2].predicate (rtx_op2, mode)
&& mode != VOIDmode)
rtx_op2 = force_reg (mode, rtx_op2);
/* Emit instruction! */
emit_insn (GEN_FCN (icode) (target, rtx_op1, rtx_op2,
comparison, cc_op0, cc_op1));
return target;
}
/* This is an internal subroutine of the other compare_and_swap expanders.
MEM, OLD_VAL and NEW_VAL are as you'd expect for a compare-and-swap
operation. TARGET is an optional place to store the value result of
the operation. ICODE is the particular instruction to expand. Return
the result of the operation. */
static rtx
expand_val_compare_and_swap_1 (rtx mem, rtx old_val, rtx new_val,
rtx target, enum insn_code icode)
{
enum machine_mode mode = GET_MODE (mem);
rtx insn;
if (!target || !insn_data[icode].operand[0].predicate (target, mode))
target = gen_reg_rtx (mode);
if (GET_MODE (old_val) != VOIDmode && GET_MODE (old_val) != mode)
old_val = convert_modes (mode, GET_MODE (old_val), old_val, 1);
if (!insn_data[icode].operand[2].predicate (old_val, mode))
old_val = force_reg (mode, old_val);
if (GET_MODE (new_val) != VOIDmode && GET_MODE (new_val) != mode)
new_val = convert_modes (mode, GET_MODE (new_val), new_val, 1);
if (!insn_data[icode].operand[3].predicate (new_val, mode))
new_val = force_reg (mode, new_val);
insn = GEN_FCN (icode) (target, mem, old_val, new_val);
if (insn == NULL_RTX)
return NULL_RTX;
emit_insn (insn);
return target;
}
/* Expand a compare-and-swap operation and return its value. */
rtx
expand_val_compare_and_swap (rtx mem, rtx old_val, rtx new_val, rtx target)
{
enum machine_mode mode = GET_MODE (mem);
enum insn_code icode = sync_compare_and_swap[mode];
if (icode == CODE_FOR_nothing)
return NULL_RTX;
return expand_val_compare_and_swap_1 (mem, old_val, new_val, target, icode);
}
/* Expand a compare-and-swap operation and store true into the result if
the operation was successful and false otherwise. Return the result.
Unlike other routines, TARGET is not optional. */
rtx
expand_bool_compare_and_swap (rtx mem, rtx old_val, rtx new_val, rtx target)
{
enum machine_mode mode = GET_MODE (mem);
enum insn_code icode;
rtx subtarget, label0, label1;
/* If the target supports a compare-and-swap pattern that simultaneously
sets some flag for success, then use it. Otherwise use the regular
compare-and-swap and follow that immediately with a compare insn. */
icode = sync_compare_and_swap_cc[mode];
switch (icode)
{
default:
subtarget = expand_val_compare_and_swap_1 (mem, old_val, new_val,
NULL_RTX, icode);
if (subtarget != NULL_RTX)
break;
/* FALLTHRU */
case CODE_FOR_nothing:
icode = sync_compare_and_swap[mode];
if (icode == CODE_FOR_nothing)
return NULL_RTX;
/* Ensure that if old_val == mem, that we're not comparing
against an old value. */
if (MEM_P (old_val))
old_val = force_reg (mode, old_val);
subtarget = expand_val_compare_and_swap_1 (mem, old_val, new_val,
NULL_RTX, icode);
if (subtarget == NULL_RTX)
return NULL_RTX;
emit_cmp_insn (subtarget, old_val, EQ, const0_rtx, mode, true);
}
/* If the target has a sane STORE_FLAG_VALUE, then go ahead and use a
setcc instruction from the beginning. We don't work too hard here,
but it's nice to not be stupid about initial code gen either. */
if (STORE_FLAG_VALUE == 1)
{
icode = setcc_gen_code[EQ];
if (icode != CODE_FOR_nothing)
{
enum machine_mode cmode = insn_data[icode].operand[0].mode;
rtx insn;
subtarget = target;
if (!insn_data[icode].operand[0].predicate (target, cmode))
subtarget = gen_reg_rtx (cmode);
insn = GEN_FCN (icode) (subtarget);
if (insn)
{
emit_insn (insn);
if (GET_MODE (target) != GET_MODE (subtarget))
{
convert_move (target, subtarget, 1);
subtarget = target;
}
return subtarget;
}
}
}
/* Without an appropriate setcc instruction, use a set of branches to
get 1 and 0 stored into target. Presumably if the target has a
STORE_FLAG_VALUE that isn't 1, then this will get cleaned up by ifcvt. */
label0 = gen_label_rtx ();
label1 = gen_label_rtx ();
emit_jump_insn (bcc_gen_fctn[EQ] (label0));
emit_move_insn (target, const0_rtx);
emit_jump_insn (gen_jump (label1));
emit_barrier ();
emit_label (label0);
emit_move_insn (target, const1_rtx);
emit_label (label1);
return target;
}
/* This is a helper function for the other atomic operations. This function
emits a loop that contains SEQ that iterates until a compare-and-swap
operation at the end succeeds. MEM is the memory to be modified. SEQ is
a set of instructions that takes a value from OLD_REG as an input and
produces a value in NEW_REG as an output. Before SEQ, OLD_REG will be
set to the current contents of MEM. After SEQ, a compare-and-swap will
attempt to update MEM with NEW_REG. The function returns true when the
loop was generated successfully. */
static bool
expand_compare_and_swap_loop (rtx mem, rtx old_reg, rtx new_reg, rtx seq)
{
enum machine_mode mode = GET_MODE (mem);
enum insn_code icode;
rtx label, cmp_reg, subtarget;
/* The loop we want to generate looks like
cmp_reg = mem;
label:
old_reg = cmp_reg;
seq;
cmp_reg = compare-and-swap(mem, old_reg, new_reg)
if (cmp_reg != old_reg)
goto label;
Note that we only do the plain load from memory once. Subsequent
iterations use the value loaded by the compare-and-swap pattern. */
label = gen_label_rtx ();
cmp_reg = gen_reg_rtx (mode);
emit_move_insn (cmp_reg, mem);
emit_label (label);
emit_move_insn (old_reg, cmp_reg);
if (seq)
emit_insn (seq);
/* If the target supports a compare-and-swap pattern that simultaneously
sets some flag for success, then use it. Otherwise use the regular
compare-and-swap and follow that immediately with a compare insn. */
icode = sync_compare_and_swap_cc[mode];
switch (icode)
{
default:
subtarget = expand_val_compare_and_swap_1 (mem, old_reg, new_reg,
cmp_reg, icode);
if (subtarget != NULL_RTX)
{
gcc_assert (subtarget == cmp_reg);
break;
}
/* FALLTHRU */
case CODE_FOR_nothing:
icode = sync_compare_and_swap[mode];
if (icode == CODE_FOR_nothing)
return false;
subtarget = expand_val_compare_and_swap_1 (mem, old_reg, new_reg,
cmp_reg, icode);
if (subtarget == NULL_RTX)
return false;
if (subtarget != cmp_reg)
emit_move_insn (cmp_reg, subtarget);
emit_cmp_insn (cmp_reg, old_reg, EQ, const0_rtx, mode, true);
}
/* ??? Mark this jump predicted not taken? */
emit_jump_insn (bcc_gen_fctn[NE] (label));
return true;
}
/* This function generates the atomic operation MEM CODE= VAL. In this
case, we do not care about any resulting value. Returns NULL if we
cannot generate the operation. */
rtx
expand_sync_operation (rtx mem, rtx val, enum rtx_code code)
{
enum machine_mode mode = GET_MODE (mem);
enum insn_code icode;
rtx insn;
/* Look to see if the target supports the operation directly. */
switch (code)
{
case PLUS:
icode = sync_add_optab[mode];
break;
case IOR:
icode = sync_ior_optab[mode];
break;
case XOR:
icode = sync_xor_optab[mode];
break;
case AND:
icode = sync_and_optab[mode];
break;
case NOT:
icode = sync_nand_optab[mode];
break;
case MINUS:
icode = sync_sub_optab[mode];
if (icode == CODE_FOR_nothing)
{
icode = sync_add_optab[mode];
if (icode != CODE_FOR_nothing)
{
val = expand_simple_unop (mode, NEG, val, NULL_RTX, 1);
code = PLUS;
}
}
break;
default:
gcc_unreachable ();
}
/* Generate the direct operation, if present. */
if (icode != CODE_FOR_nothing)
{
if (GET_MODE (val) != VOIDmode && GET_MODE (val) != mode)
val = convert_modes (mode, GET_MODE (val), val, 1);
if (!insn_data[icode].operand[1].predicate (val, mode))
val = force_reg (mode, val);
insn = GEN_FCN (icode) (mem, val);
if (insn)
{
emit_insn (insn);
return const0_rtx;
}
}
/* Failing that, generate a compare-and-swap loop in which we perform the
operation with normal arithmetic instructions. */
if (sync_compare_and_swap[mode] != CODE_FOR_nothing)
{
rtx t0 = gen_reg_rtx (mode), t1;
start_sequence ();
t1 = t0;
if (code == NOT)
{
t1 = expand_simple_unop (mode, NOT, t1, NULL_RTX, true);
code = AND;
}
t1 = expand_simple_binop (mode, code, t1, val, NULL_RTX,
true, OPTAB_LIB_WIDEN);
insn = get_insns ();
end_sequence ();
if (t1 != NULL && expand_compare_and_swap_loop (mem, t0, t1, insn))
return const0_rtx;
}
return NULL_RTX;
}
/* This function generates the atomic operation MEM CODE= VAL. In this
case, we do care about the resulting value: if AFTER is true then
return the value MEM holds after the operation, if AFTER is false
then return the value MEM holds before the operation. TARGET is an
optional place for the result value to be stored. */
rtx
expand_sync_fetch_operation (rtx mem, rtx val, enum rtx_code code,
bool after, rtx target)
{
enum machine_mode mode = GET_MODE (mem);
enum insn_code old_code, new_code, icode;
bool compensate;
rtx insn;
/* Look to see if the target supports the operation directly. */
switch (code)
{
case PLUS:
old_code = sync_old_add_optab[mode];
new_code = sync_new_add_optab[mode];
break;
case IOR:
old_code = sync_old_ior_optab[mode];
new_code = sync_new_ior_optab[mode];
break;
case XOR:
old_code = sync_old_xor_optab[mode];
new_code = sync_new_xor_optab[mode];
break;
case AND:
old_code = sync_old_and_optab[mode];
new_code = sync_new_and_optab[mode];
break;
case NOT:
old_code = sync_old_nand_optab[mode];
new_code = sync_new_nand_optab[mode];
break;
case MINUS:
old_code = sync_old_sub_optab[mode];
new_code = sync_new_sub_optab[mode];
if (old_code == CODE_FOR_nothing && new_code == CODE_FOR_nothing)
{
old_code = sync_old_add_optab[mode];
new_code = sync_new_add_optab[mode];
if (old_code != CODE_FOR_nothing || new_code != CODE_FOR_nothing)
{
val = expand_simple_unop (mode, NEG, val, NULL_RTX, 1);
code = PLUS;
}
}
break;
default:
gcc_unreachable ();
}
/* If the target does supports the proper new/old operation, great. But
if we only support the opposite old/new operation, check to see if we
can compensate. In the case in which the old value is supported, then
we can always perform the operation again with normal arithmetic. In
the case in which the new value is supported, then we can only handle
this in the case the operation is reversible. */
compensate = false;
if (after)
{
icode = new_code;
if (icode == CODE_FOR_nothing)
{
icode = old_code;
if (icode != CODE_FOR_nothing)
compensate = true;
}
}
else
{
icode = old_code;
if (icode == CODE_FOR_nothing
&& (code == PLUS || code == MINUS || code == XOR))
{
icode = new_code;
if (icode != CODE_FOR_nothing)
compensate = true;
}
}
/* If we found something supported, great. */
if (icode != CODE_FOR_nothing)
{
if (!target || !insn_data[icode].operand[0].predicate (target, mode))
target = gen_reg_rtx (mode);
if (GET_MODE (val) != VOIDmode && GET_MODE (val) != mode)
val = convert_modes (mode, GET_MODE (val), val, 1);
if (!insn_data[icode].operand[2].predicate (val, mode))
val = force_reg (mode, val);
insn = GEN_FCN (icode) (target, mem, val);
if (insn)
{
emit_insn (insn);
/* If we need to compensate for using an operation with the
wrong return value, do so now. */
if (compensate)
{
if (!after)
{
if (code == PLUS)
code = MINUS;
else if (code == MINUS)
code = PLUS;
}
if (code == NOT)
target = expand_simple_unop (mode, NOT, target, NULL_RTX, true);
target = expand_simple_binop (mode, code, target, val, NULL_RTX,
true, OPTAB_LIB_WIDEN);
}
return target;
}
}
/* Failing that, generate a compare-and-swap loop in which we perform the
operation with normal arithmetic instructions. */
if (sync_compare_and_swap[mode] != CODE_FOR_nothing)
{
rtx t0 = gen_reg_rtx (mode), t1;
if (!target || !register_operand (target, mode))
target = gen_reg_rtx (mode);
start_sequence ();
if (!after)
emit_move_insn (target, t0);
t1 = t0;
if (code == NOT)
{
t1 = expand_simple_unop (mode, NOT, t1, NULL_RTX, true);
code = AND;
}
t1 = expand_simple_binop (mode, code, t1, val, NULL_RTX,
true, OPTAB_LIB_WIDEN);
if (after)
emit_move_insn (target, t1);
insn = get_insns ();
end_sequence ();
if (t1 != NULL && expand_compare_and_swap_loop (mem, t0, t1, insn))
return target;
}
return NULL_RTX;
}
/* This function expands a test-and-set operation. Ideally we atomically
store VAL in MEM and return the previous value in MEM. Some targets
may not support this operation and only support VAL with the constant 1;
in this case while the return value will be 0/1, but the exact value
stored in MEM is target defined. TARGET is an option place to stick
the return value. */
rtx
expand_sync_lock_test_and_set (rtx mem, rtx val, rtx target)
{
enum machine_mode mode = GET_MODE (mem);
enum insn_code icode;
rtx insn;
/* If the target supports the test-and-set directly, great. */
icode = sync_lock_test_and_set[mode];
if (icode != CODE_FOR_nothing)
{
if (!target || !insn_data[icode].operand[0].predicate (target, mode))
target = gen_reg_rtx (mode);
if (GET_MODE (val) != VOIDmode && GET_MODE (val) != mode)
val = convert_modes (mode, GET_MODE (val), val, 1);
if (!insn_data[icode].operand[2].predicate (val, mode))
val = force_reg (mode, val);
insn = GEN_FCN (icode) (target, mem, val);
if (insn)
{
emit_insn (insn);
return target;
}
}
/* Otherwise, use a compare-and-swap loop for the exchange. */
if (sync_compare_and_swap[mode] != CODE_FOR_nothing)
{
if (!target || !register_operand (target, mode))
target = gen_reg_rtx (mode);
if (GET_MODE (val) != VOIDmode && GET_MODE (val) != mode)
val = convert_modes (mode, GET_MODE (val), val, 1);
if (expand_compare_and_swap_loop (mem, target, val, NULL_RTX))
return target;
}
return NULL_RTX;
}
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
#include "gt-optabs.h"
Reference in New Issue Copy Permalink