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From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/56117] New: [4.8 Regression] ICE: in cselib_subst_to_values, at cselib.c:1853 with -O2 -fsched2-use-superblocks and __builtin_prefetch()
Date: Sat, 26 Jan 2013 14:08:00 -0000 [thread overview]
Message-ID: <bug-56117-4@http.gcc.gnu.org/bugzilla/> (raw)
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56117
Bug #: 56117
Summary: [4.8 Regression] ICE: in cselib_subst_to_values, at
cselib.c:1853 with -O2 -fsched2-use-superblocks and
__builtin_prefetch()
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: zsojka@seznam.cz
Created attachment 29278
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29278
reduced testcase
Compiler output:
$ gcc -O2 -fsched2-use-superblocks testcase.c
testcase.c: In function 'foo':
testcase.c:4:1: internal compiler error: in cselib_subst_to_values, at
cselib.c:1853
}
^
0x6d6874 cselib_subst_to_values(rtx_def*, machine_mode)
/mnt/svn/gcc-trunk/gcc/cselib.c:1853
0x6d6cf9 cselib_subst_to_values_from_insn(rtx_def*, machine_mode, rtx_def*)
/mnt/svn/gcc-trunk/gcc/cselib.c:1945
0x1149dbf add_insn_mem_dependence
/mnt/svn/gcc-trunk/gcc/sched-deps.c:1739
0x1150266 sched_analyze_2
/mnt/svn/gcc-trunk/gcc/sched-deps.c:2724
0x11510ee sched_analyze_insn
/mnt/svn/gcc-trunk/gcc/sched-deps.c:2899
0x1153b09 deps_analyze_insn(deps_desc*, rtx_def*)
/mnt/svn/gcc-trunk/gcc/sched-deps.c:3583
0x1154815 sched_analyze(deps_desc*, rtx_def*, rtx_def*)
/mnt/svn/gcc-trunk/gcc/sched-deps.c:3732
0x11583ea schedule_ebb(rtx_def*, rtx_def*, bool)
/mnt/svn/gcc-trunk/gcc/sched-ebb.c:514
0x1158e35 schedule_ebbs()
/mnt/svn/gcc-trunk/gcc/sched-ebb.c:664
0x9cb7f4 rest_of_handle_sched2
/mnt/svn/gcc-trunk/gcc/sched-rgn.c:3606
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
Tested revisions:
r195477 - crash
r195313 - crash
r192654 - OK
4.7 r194763 - OK
next reply other threads:[~2013-01-26 14:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-26 14:08 zsojka at seznam dot cz [this message]
2013-01-26 15:20 ` [Bug rtl-optimization/56117] " rguenth at gcc dot gnu.org
2013-01-28 8:45 ` jakub at gcc dot gnu.org
2013-01-28 8:52 ` jakub at gcc dot gnu.org
2013-01-28 16:51 ` jakub at gcc dot gnu.org
2013-01-28 16:52 ` jakub at gcc dot gnu.org
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