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combine.c (record_dead_and_set_regs): Use regs_invalidated_by_call.

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* combine.c (record_dead_and_set_regs): Use
	regs_invalidated_by_call.  Don't note stores for CALL_INSNs.

From-SVN: r48009
This commit is contained in:
Zack Weinberg 2001-12-14 21:20:03 +00:00 • committed by Zack Weinberg
parent dc6f415864
commit 29655d3d5c
2 changed files with 13 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2001-12-14 Zack Weinberg <zack@codesourcery.com>
* combine.c (record_dead_and_set_regs): Use
regs_invalidated_by_call. Don't note stores for CALL_INSNs.
2001-12-14 Roger Sayle <roger@eyesopen.com>
* builtins.def: Rename BUILT_IN_FSQRT to BUILT_IN_SQRT and

9
gcc/combine.c
View file

@ -11202,7 +11202,7 @@ record_dead_and_set_regs (insn)
if (GET_CODE (insn) == CALL_INSN)
{
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (call_used_regs[i])
if (TEST_HARD_REG_BIT (regs_invalidated_by_call, i))
{
reg_last_set_value[i] = 0;
reg_last_set_mode[i] = 0;
@ -11212,6 +11212,13 @@ record_dead_and_set_regs (insn)
}
last_call_cuid = mem_last_set = INSN_CUID (insn);
/* Don't bother recording what this insn does. It might set the
return value register, but we can't combine into a call
pattern anyway, so there's no point trying (and it may cause
a crash, if e.g. we wind up asking for last_set_value of a
SUBREG of the return value register). */
return;
}
note_stores (PATTERN (insn), record_dead_and_set_regs_1, insn);