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From: "rguenth at tat dot physik dot uni-tuebingen dot de" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug optimization/13653] New: [3.3 regression] -O2 -funroll-loop miscompiles POOMA testcase Date: Mon, 12 Jan 2004 10:13:00 -0000 [thread overview] Message-ID: <20040112101346.13653.rguenth@tat.physik.uni-tuebingen.de> (raw) Current g++-3.3 (g++-3.3 (GCC) 3.3.3 20040107 (prerelease)) miscompiles quite a few POOMA testcases which results in SIGSEGVs. These failures occour with -O2 -funroll-loops, but not with -O2. One example preprocessed testcase can be fetched from http://www.tat.physik.uni-tuebingen.de/~rguenth/gcc/array_test1.ii.gz compile with -fno-exceptions -O2 -funroll-loops to see it segfaulting and with -fno-exceptions -O2 to see it printing a success message. g++ (GCC) 3.3.3 20031114 (prerelease) also did have this problem (this is the oldest binary I have lying around). -- Summary: [3.3 regression] -O2 -funroll-loop miscompiles POOMA testcase Product: gcc Version: 3.3.3 Status: UNCONFIRMED Severity: critical Priority: P2 Component: optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rguenth at tat dot physik dot uni-tuebingen dot de CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13653
next reply other threads:[~2004-01-12 10:13 UTC|newest] Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top 2004-01-12 10:13 rguenth at tat dot physik dot uni-tuebingen dot de [this message] 2004-01-12 15:56 ` [Bug optimization/13653] " pinskia at gcc dot gnu dot org 2004-01-14 21:22 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-01-15 18:55 ` bangerth at dealii dot org 2004-01-15 18:56 ` bangerth at dealii dot org 2004-01-15 19:10 ` bangerth at dealii dot org 2004-01-15 19:12 ` dberlin at dberlin dot org 2004-01-15 19:13 ` bangerth at dealii dot org 2004-01-15 19:26 ` Daniel Berlin 2004-01-15 19:26 ` dberlin at dberlin dot org 2004-01-16 8:52 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-01-18 3:54 ` dberlin at gcc dot gnu dot org 2004-01-18 13:23 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-01-28 18:45 ` bangerth at dealii dot org 2004-01-28 18:51 ` dberlin at dberlin dot org 2004-01-29 22:10 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-01-29 22:25 ` dberlin at dberlin dot org 2004-01-29 22:27 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-01-29 22:45 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-01-29 22:54 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-02-01 23:06 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-02-01 23:31 ` gdr at integrable-solutions dot net 2004-02-02 15:11 ` reichelt at gcc dot gnu dot org 2004-02-02 16:16 ` dberlin at dberlin dot org 2004-02-02 16:33 ` janis187 at us dot ibm dot com 2004-02-02 16:59 ` reichelt at gcc dot gnu dot org 2004-02-02 17:20 ` reichelt at gcc dot gnu dot org 2004-02-02 18:58 ` jh at suse dot cz 2004-02-02 21:29 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-02-15 12:39 ` gdr at gcc dot gnu dot org 2004-04-27 15:32 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-04-29 17:54 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-05-03 7:54 ` ebotcazou at gcc dot gnu dot org 2004-05-03 8:24 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-05-03 14:13 ` gdr at integrable-solutions dot net 2004-05-18 14:15 ` [Bug rtl-optimization/13653] " ebotcazou at gcc dot gnu dot org 2004-05-24 1:56 ` ebotcazou at gcc dot gnu dot org 2004-05-24 1:57 ` gdr at integrable-solutions dot net 2004-05-24 2:02 ` ebotcazou at gcc dot gnu dot org 2004-05-24 13:44 ` ebotcazou at gcc dot gnu dot org 2004-05-25 7:01 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-05-25 7:36 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-05-25 8:45 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-05-25 14:31 ` ebotcazou at gcc dot gnu dot org 2004-05-26 10:43 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-05-26 18:57 ` rguenth at tat dot physik dot uni-tuebingen dot de 2004-05-30 21:14 ` gdr at integrable-solutions dot net 2004-05-30 22:42 ` cvs-commit at gcc dot gnu dot org 2004-05-30 22:57 ` ebotcazou at gcc dot gnu dot org
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