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From: thomas.anders@blue-cable.de To: gcc-gnats@gcc.gnu.org Subject: c/9787: optimization bug with 176.gcc from SPECcpu2000 Date: Fri, 21 Feb 2003 14:16:00 -0000 [thread overview] Message-ID: <20030221141118.21567.qmail@sources.redhat.com> (raw) >Number: 9787 >Category: c >Synopsis: optimization bug with 176.gcc from SPECcpu2000 >Confidential: no >Severity: critical >Priority: medium >Responsible: unassigned >State: open >Class: sw-bug >Submitter-Id: net >Arrival-Date: Fri Feb 21 14:16:00 UTC 2003 >Closed-Date: >Last-Modified: >Originator: Thomas Anders >Release: gcc version 3.2.2 >Organization: >Environment: Intel Pentium 4 1.70GHz SuSE Linux 8.1, Kernel 2.4.19 >Description: The 176.gcc benchmark from the latest SPECcpu2000 V1.2 benchmark suite (www.spec.org/osg/cpu2000/) gives wrong results ("miscompare") when using optimization levels 1, 2 or 3 (e.g. "-O3") and "-march=pentium4" with gcc 3.2.2 (Release). Unfortunately I can't provide the source code here since it's covered under SPEC's license. A SPEC licensee (from SuSE, RedHat and friends) should be looking at this issue. >How-To-Repeat: Compile the 176.gcc benchmark from the SPECcpu2000 benchmark suite (www.spec.org/osg/cpu2000/) with OPTIMIZE="-O3 -march=pentium4" using gcc 3.2.2 (Release). >Fix: Yes, please! ;) >Release-Note: >Audit-Trail: >Unformatted:
next reply other threads:[~2003-02-21 14:16 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2003-02-21 14:16 thomas.anders [this message] 2003-02-25 0:26 Janis Johnson
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