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[Bug middle-end/26835] ICE in f951 on valid code at -O2 -ftree-loop-linear
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 24 Mar 2006 10:30:17 -0000
- Subject: [Bug middle-end/26835] ICE in f951 on valid code at -O2 -ftree-loop-linear
- References: <bug-26835-8649@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from rguenth at gcc dot gnu dot org 2006-03-24 10:30 -------
Confirmed. We ICE after IVOPTs during computation of dominance frontiers.
Other than that, tree-loop-linear seems to be somewhat buggy in general.
Program received signal SIGSEGV, Segmentation fault.
0x081e85af in compute_dominance_frontiers_1 (frontiers=0x8929b90)
at /space/rguenther/src/svn/summit/gcc/cfganal.c:1057
1057 bitmap_set_bit (frontiers[runner->index],
(gdb) bt
#0 0x081e85af in compute_dominance_frontiers_1 (frontiers=0x8929b90)
at /space/rguenther/src/svn/summit/gcc/cfganal.c:1057
#1 0x081e8657 in compute_dominance_frontiers (frontiers=0x8929b90)
at /space/rguenther/src/svn/summit/gcc/cfganal.c:1073
#2 0x081452d9 in update_ssa (update_flags=128)
at /space/rguenther/src/svn/summit/gcc/tree-into-ssa.c:2755
#3 0x08546c15 in execute_todo (flags=197)
at /space/rguenther/src/svn/summit/gcc/passes.c:765
I'd say it hints at a broken CFG.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dberlin at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
GCC build triplet|powerpc64-linux |
GCC host triplet|powerpc64-linux |
GCC target triplet|powerpc64-linux |
Last reconfirmed|0000-00-00 00:00:00 |2006-03-24 10:30:17
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26835