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re PR rtl-optimization/48721 (ICE: verify_flow_info failed: missing barrier after block 6 with -foptimize-sibling-calls -fsched2-use-superblocks)

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PR rtl-optimization/48721
	* sched-ebb.c (begin_move_insn): Insert empty unreachable
	block after BARRIER if insn is followed by it.

From-SVN: r181855
This commit is contained in:
Jakub Jelinek 2011-11-30 19:53:46 +01:00 committed by Jakub Jelinek
parent 23ffb99e94
commit bbf81a5fae
2 changed files with 13 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2011-11-30 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/48721
* sched-ebb.c (begin_move_insn): Insert empty unreachable
block after BARRIER if insn is followed by it.
2011-11-30 Richard Henderson <rth@redhat.com>
* config/sparc/sparc-opts.h (enum sparc_memory_model_type): New.

9
gcc/sched-ebb.c
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@ -191,8 +191,13 @@ begin_move_insn (rtx insn, rtx last)
gcc_assert (NOTE_INSN_BASIC_BLOCK_P (BB_END (bb)));
}
else
/* Create an empty unreachable block after the INSN. */
bb = create_basic_block (NEXT_INSN (insn), NULL_RTX, last_bb);
{
/* Create an empty unreachable block after the INSN. */
rtx next = NEXT_INSN (insn);
if (next && BARRIER_P (next))
next = NEXT_INSN (next);
bb = create_basic_block (next, NULL_RTX, last_bb);
}
/* split_edge () creates BB before E->DEST. Keep in mind, that
this operation extends scheduling region till the end of BB.