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From: "m_albert137 at yahoo dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/41019] New: Variate_generator with mt19937 and normal_distribution produces wrong sequence for "-O3". Date: Sun, 09 Aug 2009 20:56:00 -0000 [thread overview] Message-ID: <bug-41019-13452@http.gcc.gnu.org/bugzilla/> (raw) The attached code, we compiled with "-O3", gives an incorrect sequence (and different from the sequence without optimization or -O1 or -O2). This problem was discovered due to incorrect statistical behavior of a Monte Carlo calculation (not attached). -- Summary: Variate_generator with mt19937 and normal_distribution produces wrong sequence for "-O3". Product: gcc Version: 4.4.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: m_albert137 at yahoo dot com GCC host triplet: x86_64-unknown-linux-gnu Core2 Q9550 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41019
next reply other threads:[~2009-08-09 20:56 UTC|newest] Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-08-09 20:56 m_albert137 at yahoo dot com [this message] 2009-08-09 21:02 ` [Bug c++/41019] " m_albert137 at yahoo dot com 2009-08-09 21:06 ` m_albert137 at yahoo dot com 2009-08-09 21:09 ` m_albert137 at yahoo dot com 2009-08-11 15:04 ` m_albert137 at yahoo dot com 2009-08-11 15:24 ` [Bug tree-optimization/41019] " rguenth at gcc dot gnu dot org 2009-08-11 20:17 ` afoglia at gmail dot com 2009-08-12 12:14 ` irar at il dot ibm dot com 2009-08-12 12:37 ` rguenther at suse dot de 2009-08-13 5:41 ` irar at il dot ibm dot com 2009-08-13 8:56 ` rguenth at gcc dot gnu dot org 2009-08-13 11:35 ` irar at il dot ibm dot com 2009-08-13 11:36 ` irar at il dot ibm dot com 2009-08-13 11:37 ` irar at il dot ibm dot com 2009-08-13 12:25 ` [Bug target/41019] " rguenth at gcc dot gnu dot org 2009-08-13 12:32 ` rguenth at gcc dot gnu dot org 2009-08-13 13:02 ` ubizjak at gmail dot com 2009-08-13 13:04 ` ubizjak at gmail dot com 2009-08-13 13:09 ` rguenther at suse dot de 2009-08-13 13:35 ` ubizjak at gmail dot com 2009-08-13 13:40 ` ubizjak at gmail dot com 2009-08-13 14:27 ` m_albert137 at yahoo dot com 2009-08-13 15:27 ` ubizjak at gmail dot com 2009-08-13 16:21 ` [Bug target/41019] [4.3/4.4/4.5 Regression] Vector conditional move produces wrong code with -O3 ubizjak at gmail dot com 2009-08-13 18:28 ` ubizjak at gmail dot com 2009-08-14 10:31 ` uros at gcc dot gnu dot org 2009-08-16 19:35 ` uros at gcc dot gnu dot org 2009-08-16 21:06 ` uros at gcc dot gnu dot org 2009-08-16 21:07 ` ubizjak at gmail dot com
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