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[Bug rtl-optimization/45570] [4.6 Regression] ICE: in cfg_preds_1, at sel-sched-ir.c:4584
- From: "abel at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 7 Apr 2011 06:50:19 +0000
- Subject: [Bug rtl-optimization/45570] [4.6 Regression] ICE: in cfg_preds_1, at sel-sched-ir.c:4584
- Auto-submitted: auto-generated
- References: <bug-45570-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45570
--- Comment #6 from Andrey Belevantsev <abel at gcc dot gnu.org> 2011-04-07 06:50:12 UTC ---
Author: abel
Date: Thu Apr 7 06:50:08 2011
New Revision: 172077
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=172077
Log:
Backport from mainline
2010-10-14 Andrey Belevantsev <abel@ispras.ru>
PR rtl-optimization/45570
* sel-sched-ir.c (cfg_preds_1): When walking out of the region,
assert that we are pipelining outer loops. Allow returning
zero predecessors.
Added:
branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/pr45570.c
Modified:
branches/gcc-4_5-branch/gcc/ChangeLog
branches/gcc-4_5-branch/gcc/sel-sched-ir.c
branches/gcc-4_5-branch/gcc/testsuite/ChangeLog