This patch http://gcc.gnu.org/ml/gcc-patches/2008-01/msg00191.html
miscompiled 481.wrf in SPEC CPU 2006 on Linux/Intel64 with -O2 -ffast-math. The resulting 481.wrf segfaulted. -- Summary: [4.3 regression]: revision 131342 miscompiled 481.wrf on Linux/Intel64 Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl at lucon dot org GCC target triplet: x86_64-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34709