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[Bug tree-optimization/18241] New: linux kernel loop gets miscompiled
- From: "ak at muc dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 31 Oct 2004 01:03:24 -0000
- Subject: [Bug tree-optimization/18241] New: linux kernel loop gets miscompiled
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
(just guessing on the component)
I've been trying to boot a 4.0-20041030 compiled x86_64-linux-kernel. First
it exposed a missing -fno-strict-aliasing (now fixed) but then it crashes
during disk accesses. The problem goes away when one function from the
radix tree library is compiled with -O0 instead of -O2
I unfortunately don't have a runnable test case yet, but I can give
compiler input that shows the problem.
--
Summary: linux kernel loop gets miscompiled
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ak at muc dot de
CC: gcc-bugs at gcc dot gnu dot org
GCC host triplet: x86_64-linux
GCC target triplet: x86_64-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18241