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[Bug c/31024] New: segfault for SPEC CPU2000 vortex with -O2
- From: "kenneth dot hoste at elis dot ugent dot be" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 2 Mar 2007 10:13:20 -0000
- Subject: [Bug c/31024] New: segfault for SPEC CPU2000 vortex with -O2
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
Using GCC 4.1.2 and compiling with -static -O2, the SPEC CPU2000 benchmark
vortex segfaults on my system (Fedora Core 4, Intel Pentium 4).
This issue was reported before (see
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23449), and seem to be resolved in
GCC 4.1.1. Using -fno-strict-aliasing solves this, but I wonder why
-fno-strict-aliasing was not required with GCC 4.1.1, but is crucial (again) in
GCC 4.1.2.
Any further details will be provided as needed.
--
Summary: segfault for SPEC CPU2000 vortex with -O2
Product: gcc
Version: 4.1.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kenneth dot hoste at elis dot ugent dot be
GCC target triplet: x86/linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31024