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reload1.c (eliminate_regs_in_insn): Allow a set to be a PARALLEL with (clobber (match_scratch...)).

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* reload1.c (eliminate_regs_in_insn): Allow a set to be a PARALLEL
	with (clobber (match_scratch...)).

From-SVN: r37281
This commit is contained in:
J"orn Rennecke 2000-11-06 20:09:04 +00:00 committed by Joern Rennecke
parent f559f30b4b
commit f34c06e547
2 changed files with 20 additions and 4 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Mon Nov 6 20:08:13 2000 J"orn Rennecke <amylaar@redhat.com>
* reload1.c (eliminate_regs_in_insn): Allow a set to be a PARALLEL
with (clobber (match_scratch...)).
2000-11-06 Neil Booth <neilb@earthling.net>
* c-lex.c (init_c_lex): If cpp_start_read fails, exit with

19
gcc/reload1.c
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@ -2953,13 +2953,24 @@ eliminate_regs_in_insn (insn, replace)
if (offset == 0)
{
/* We assume here that we don't need a PARALLEL of
any CLOBBERs for this assignment. There's not
much we can do if we do need it. */
int num_clobbers;
/* We assume here that if we need a PARALLEL with
CLOBBERs for this assignment, we can do with the
MATCH_SCRATCHes that add_clobbers allocates.
There's not much we can do if that doesn't work. */
PATTERN (insn) = gen_rtx_SET (VOIDmode,
SET_DEST (old_set),
ep->to_rtx);
INSN_CODE (insn) = recog (PATTERN (insn), insn, 0);
num_clobbers = 0;
INSN_CODE (insn) = recog (PATTERN (insn), insn, &num_clobbers);
if (num_clobbers)
{
rtvec vec = rtvec_alloc (num_clobbers + 1);
vec->elem[0] = PATTERN (insn);
PATTERN (insn) = gen_rtx_PARALLEL (VOIDmode, vec);
add_clobbers (PATTERN (insn), INSN_CODE (insn));
}
if (INSN_CODE (insn) < 0)
abort ();
}