On Linux/x86-64, revision 148941 http://gcc.gnu.org/ml/gcc-cvs/2009-06/msg00925.html
miscompiled 447.dealII in SPEC CPU 2006 with -O2 -ffast-math. -- Summary: [4.5 Regression] Revision 148941 miscompiled 447.dealII in SPEC CPU 2006 Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl dot tools at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40554