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re PR debug/56950 (compare-debug failure for gcc.dg/pr41345.c with fschedule-insns)

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PR debug/56950
	* haifa-sched.c (sched_extend_bb): Ignore DEBUG_INSNs.

From-SVN: r199316
This commit is contained in:
Steven Bosscher 2013-05-24 20:59:59 +00:00
parent 9f57f76aae
commit cb5cb19486
2 changed files with 12 additions and 8 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2013-05-24 Steven Bosscher <steven@gcc.gnu.org>
PR debug/56950
* haifa-sched.c (sched_extend_bb): Ignore DEBUG_INSNs.
2013-05-24 Nathan Sidwell <nathan@codesourcery.com>
Sandra Loosemore <sandra@codesourcery.com>

15
gcc/haifa-sched.c
View file

@ -7435,20 +7435,19 @@ find_fallthru_edge_from (basic_block pred)
static void
sched_extend_bb (void)
{
rtx insn;
/* The following is done to keep current_sched_info->next_tail non null. */
insn = BB_END (EXIT_BLOCK_PTR->prev_bb);
if (NEXT_INSN (insn) == 0
rtx end = BB_END (EXIT_BLOCK_PTR->prev_bb);
rtx insn = DEBUG_INSN_P (end) ? prev_nondebug_insn (end) : end;
if (NEXT_INSN (end) == 0
|| (!NOTE_P (insn)
&& !LABEL_P (insn)
/* Don't emit a NOTE if it would end up before a BARRIER. */
&& !BARRIER_P (NEXT_INSN (insn))))
&& !BARRIER_P (NEXT_INSN (end))))
{
rtx note = emit_note_after (NOTE_INSN_DELETED, insn);
/* Make insn appear outside BB. */
rtx note = emit_note_after (NOTE_INSN_DELETED, end);
/* Make note appear outside BB. */
set_block_for_insn (note, NULL);
BB_END (EXIT_BLOCK_PTR->prev_bb) = insn;
BB_END (EXIT_BLOCK_PTR->prev_bb) = end;
}
}