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From: "kenneth dot hoste at elis dot ugent dot be" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/40386] wrong code generation for SPEC CPU2000's 189.lucas with -O1 -fno-ira-share-spill-slots Date: Tue, 09 Jun 2009 13:35:00 -0000 [thread overview] Message-ID: <20090609133512.1230.qmail@sourceware.org> (raw) In-Reply-To: <bug-40386-13613@http.gcc.gnu.org/bugzilla/> ------- Comment #2 from kenneth dot hoste at elis dot ugent dot be 2009-06-09 13:35 ------- I did some more experiments, and have some more details to share. It seems the problem with lucas only occurs with the SVN head of the 4.4 branch I'm working on (r148268), and not with the 4.4.0 release. However, a similar problem is occuring with the 172.mgrid benchmark, and this _is_ occuring both with the 4.4.0 release and with revision 148268 of the 4.4 branch. Again, -O1 -fno-ira-share-spill-slots leads to a binary not producing correct output (but there's not noticeable crash of the benchmark this time). Using -O1 yields no problems though. The SPEC framework reports the below as a diff between the expected and observed output for mgrid, and considers the difference to be serious enough to report the run to be invalid. 0019: 0.103090E-02 -0.907513E-03 ^ 0020: 0.103090E-02 -0.907513E-03 ^ 0021: 0.184495E-02 0.261074E-02 ^ 0022: 0.184495E-02 0.261074E-02 ^ 0023: 0.366257E-03 -0.677032E-04 ^ 0024: 0.366257E-03 -0.677032E-04 ^ 0025: 0.436098E-03 0.179609E-03 ^ 0026: 0.436098E-03 0.179609E-03 ^ 0027: 0.442029E-03 0.212079E-03 ^ 0028: 0.442029E-03 0.212079E-03 ^ 0029: 0.442962E-03 0.217171E-03 ^ -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40386
next prev parent reply other threads:[~2009-06-09 13:35 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-06-09 12:07 [Bug fortran/40386] New: " kenneth dot hoste at elis dot ugent dot be 2009-06-09 12:25 ` [Bug middle-end/40386] " burnus at gcc dot gnu dot org 2009-06-09 13:35 ` kenneth dot hoste at elis dot ugent dot be [this message] 2009-06-09 14:12 ` kenneth dot hoste at elis dot ugent dot be 2009-06-09 14:22 ` rguenth at gcc dot gnu dot org 2009-06-09 14:31 ` kenneth dot hoste at elis dot ugent dot be 2009-06-09 14:52 ` kenneth dot hoste at elis dot ugent dot be 2010-04-12 13:47 ` [Bug middle-end/40386] wrong code generation for several SPEC CPU2000 benchmarks (lucas, mgrid, face, applu, apsi) " zsojka at seznam dot cz 2010-04-12 18:55 ` zsojka at seznam dot cz 2010-09-08 17:44 ` vmakarov at redhat dot com 2010-09-09 13:43 ` vmakarov at gcc dot gnu dot org 2010-09-09 13:47 ` vmakarov at gcc dot gnu dot org 2010-09-09 13:52 ` vmakarov at gcc dot gnu dot org 2010-09-15 0:05 ` zsojka at seznam dot cz
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