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re PR tree-optimization/51557 (ICE: in maybe_record_trace_start, at dwarf2cfi.c:2244 with custom flags)

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PR debug/51557
	* sel-sched-ir.c (create_copy_of_insn_rtx): Copy all notes
	other than REG_EQUAL, REG_EQUIV and REG_LABEL_OPERAND.

	* gcc.dg/pr51557.c: New test.

From-SVN: r182404
This commit is contained in:
Jakub Jelinek 2011-12-16 16:21:48 +01:00 committed by Jakub Jelinek
parent 511b44365a
commit d734e6c466
4 changed files with 43 additions and 1 deletions
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4
gcc/ChangeLog
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@ -1,5 +1,9 @@
2011-12-16 Jakub Jelinek <jakub@redhat.com>
PR debug/51557
* sel-sched-ir.c (create_copy_of_insn_rtx): Copy all notes
other than REG_EQUAL, REG_EQUIV and REG_LABEL_OPERAND.
PR tree-optimization/51576
* tree-cfg.c (replace_uses_by): Call maybe_clean_or_replace_eh_stmt
even if fold_stmt didn't change anything.

18
gcc/sel-sched-ir.c
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@ -5723,7 +5723,7 @@ create_vinsn_from_insn_rtx (rtx insn_rtx, bool force_unique_p)
rtx
create_copy_of_insn_rtx (rtx insn_rtx)
{
rtx res;
rtx res, link;
if (DEBUG_INSN_P (insn_rtx))
return create_insn_rtx_from_pattern (copy_rtx (PATTERN (insn_rtx)),
@ -5733,6 +5733,22 @@ create_copy_of_insn_rtx (rtx insn_rtx)
res = create_insn_rtx_from_pattern (copy_rtx (PATTERN (insn_rtx)),
NULL_RTX);
/* Copy all REG_NOTES except REG_EQUAL/REG_EQUIV and REG_LABEL_OPERAND
since mark_jump_label will make them. REG_LABEL_TARGETs are created
there too, but are supposed to be sticky, so we copy them. */
for (link = REG_NOTES (insn_rtx); link; link = XEXP (link, 1))
if (REG_NOTE_KIND (link) != REG_LABEL_OPERAND
&& REG_NOTE_KIND (link) != REG_EQUAL
&& REG_NOTE_KIND (link) != REG_EQUIV)
{
if (GET_CODE (link) == EXPR_LIST)
add_reg_note (res, REG_NOTE_KIND (link),
copy_insn_1 (XEXP (link, 0)));
else
add_reg_note (res, REG_NOTE_KIND (link), XEXP (link, 0));
}
return res;
}

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2011-12-16 Jakub Jelinek <jakub@redhat.com>
PR debug/51557
* gcc.dg/pr51557.c: New test.
2011-12-16 Richard Guenther <rguenther@suse.de>
PR lto/51572

17
gcc/testsuite/gcc.dg/pr51557.c Normal file
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@ -0,0 +1,17 @@
/* PR debug/51557 */
/* { dg-do compile { target powerpc*-*-* ia64-*-* i?86-*-* x86_64-*-* } } */
/* { dg-options "-Os -fno-asynchronous-unwind-tables -g -fsel-sched-pipelining -fselective-scheduling2" } */
extern int baz (void);
extern void bar (int, int, int, int, int, int, int);
void
synth (int *values, int n_values, int ci, int s1, int v, int s2)
{
while (--s1)
{
int r1 = values[s1];
int co = ci ? r1 : baz () < r1;
bar (0, n_values, s1, s2, v, co, 0);
}
}