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[Bug rtl-optimization/25862] New: GCC 3.4.4 - Wrong code generated with -O2 and -O3 optimization levels
- From: "andreg at discreet dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 Jan 2006 18:53:47 -0000
- Subject: [Bug rtl-optimization/25862] New: GCC 3.4.4 - Wrong code generated with -O2 and -O3 optimization levels
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
The following test case produces wrong result when compiled with -O2 or -O3.
expected result (-O1, or using intel compiler):
ReadX: x = -5.9436e+29 [ OK ]
WriteX: [ OK ]
observed results (-O2 or -O3)
ReadX: x = 0 [ FAIL ]
WriteX: [ FAIL ]
--
Summary: GCC 3.4.4 - Wrong code generated with -O2 and -O3
optimization levels
Product: gcc
Version: 3.4.4
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: andreg at discreet dot com
GCC target triplet: x86_64 linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25862