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re PR rtl-optimization/41862 (-fgcse-sm causes bootstrap-debug comparison failures)

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PR rtl-optimization/41862
	* store-motion.c (store_killed_in_insn, compute_store_table,
	remove_reachable_equiv_notes, replace_store_insn,
	build_store_vectors): Ignore all DEBUG_INSNs.

From-SVN: r155596
This commit is contained in:
Steven Bosscher 2010-01-03 22:41:22 +00:00
parent 5e87f30e99
commit 2ad1dda018
2 changed files with 13 additions and 6 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2009-01-03 Steven Bosscher <steven@gcc.gnu.org>
PR rtl-optimization/41862
* store-motion.c (store_killed_in_insn, compute_store_table,
remove_reachable_equiv_notes, replace_store_insn,
build_store_vectors): Ignore all DEBUG_INSNs.
2010-01-03 H.J. Lu <hongjiu.lu@intel.com>
PR lto/41564

12
gcc/store-motion.c
View file

@ -398,7 +398,7 @@ store_killed_in_insn (const_rtx x, const_rtx x_regs, const_rtx insn, int after)
{
const_rtx reg, base, note, pat;
if (!INSN_P (insn))
if (! NONDEBUG_INSN_P (insn))
return false;
if (CALL_P (insn))
@ -667,7 +667,7 @@ compute_store_table (void)
FOR_BB_INSNS (bb, insn)
{
if (! INSN_P (insn))
if (! NONDEBUG_INSN_P (insn))
continue;
for (def_rec = DF_INSN_DEFS (insn); *def_rec; def_rec++)
@ -678,7 +678,7 @@ compute_store_table (void)
memset (already_set, 0, sizeof (int) * max_gcse_regno);
FOR_BB_INSNS (bb, insn)
{
if (! INSN_P (insn))
if (! NONDEBUG_INSN_P (insn))
continue;
for (def_rec = DF_INSN_DEFS (insn); *def_rec; def_rec++)
@ -897,7 +897,7 @@ remove_reachable_equiv_notes (basic_block bb, struct st_expr *smexpr)
last = NEXT_INSN (BB_END (bb));
for (insn = BB_HEAD (bb); insn != last; insn = NEXT_INSN (insn))
if (INSN_P (insn))
if (NONDEBUG_INSN_P (insn))
{
note = find_reg_equal_equiv_note (insn);
if (!note || !exp_equiv_p (XEXP (note, 0), mem, 0, true))
@ -963,7 +963,7 @@ replace_store_insn (rtx reg, rtx del, basic_block bb, struct st_expr *smexpr)
they are no longer accurate provided that they are reached by this
definition, so drop them. */
for (; insn != NEXT_INSN (BB_END (bb)); insn = NEXT_INSN (insn))
if (INSN_P (insn))
if (NONDEBUG_INSN_P (insn))
{
set = single_set (insn);
if (!set)
@ -1070,7 +1070,7 @@ build_store_vectors (void)
memset (regs_set_in_block, 0, sizeof (int) * max_gcse_regno);
FOR_BB_INSNS (bb, insn)
if (INSN_P (insn))
if (NONDEBUG_INSN_P (insn))
{
df_ref *def_rec;
for (def_rec = DF_INSN_DEFS (insn); *def_rec; def_rec++)