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re PR bootstrap/50010 (bootstrap comparison failure without CFI directives)

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PR bootstrap/50010
	* dwarf2cfi.c (add_cfis_to_fde): Ignore non-active insns in between
	NOTE_INSN_CFI notes, with the exception of
	NOTE_INSN_SWITCH_TEXT_SECTIONS.

From-SVN: r178795
This commit is contained in:
Jakub Jelinek 2011-09-12 21:29:31 +02:00 committed by Jakub Jelinek
parent 3bd0817d1c
commit b84dad8e0a
2 changed files with 21 additions and 5 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2011-09-12 Jakub Jelinek <jakub@redhat.com>
PR bootstrap/50010
* dwarf2cfi.c (add_cfis_to_fde): Ignore non-active insns in between
NOTE_INSN_CFI notes, with the exception of
NOTE_INSN_SWITCH_TEXT_SECTIONS.
2011-09-12 Bernd Schmidt <bernds@codesourcery.com>
Richard Sandiford <rdsandiford@googlemail.com>

19
gcc/dwarf2cfi.c
View File

@ -2153,11 +2153,18 @@ add_cfis_to_fde (void)
if (NOTE_P (insn) && NOTE_KIND (insn) == NOTE_INSN_CFI)
{
bool required = cfi_label_required_p (NOTE_CFI (insn));
while (next && NOTE_P (next) && NOTE_KIND (next) == NOTE_INSN_CFI)
{
required |= cfi_label_required_p (NOTE_CFI (next));
while (next)
if (NOTE_P (next) && NOTE_KIND (next) == NOTE_INSN_CFI)
{
required |= cfi_label_required_p (NOTE_CFI (next));
next = NEXT_INSN (next);
}
else if (active_insn_p (next)
|| (NOTE_P (next) && (NOTE_KIND (next)
== NOTE_INSN_SWITCH_TEXT_SECTIONS)))
break;
else
next = NEXT_INSN (next);
}
if (required)
{
int num = dwarf2out_cfi_label_num;
@ -2178,7 +2185,9 @@ add_cfis_to_fde (void)
do
{
VEC_safe_push (dw_cfi_ref, gc, fde->dw_fde_cfi, NOTE_CFI (insn));
if (NOTE_P (insn) && NOTE_KIND (insn) == NOTE_INSN_CFI)
VEC_safe_push (dw_cfi_ref, gc, fde->dw_fde_cfi,
NOTE_CFI (insn));
insn = NEXT_INSN (insn);
}
while (insn != next);