gcc.c-torture/execute/960416-1.c fails this way with -O1 -fno-tree-dominator-opts, 4.5 is fine.
> /abuild/rguenther/trunk-g/gcc/xgcc -B/abuild/rguenther/trunk-g/gcc/ > /space/rguenther/src/svn/trunk/gcc/testsuite/gcc.c-torture/execute/960416-1.c > -w -O1 -lm -fno-tree-dominator-opts -o > /abuild/rguenther/trunk-g/gcc/testsuite/gcc/960416-1.x1 /space/rguenther/src/svn/trunk/gcc/testsuite/gcc.c-torture/execute/960416-1.c: In function 'f_le': /space/rguenther/src/svn/trunk/gcc/testsuite/gcc.c-torture/execute/960416-1.c:48:1: internal compiler error: in partition_view_bitmap, at tree-ssa-live.c:334 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. -- Summary: [4.6 Regression] ICE in partition_view_bitmap, at tree- ssa-live.c:334 Product: gcc Version: 4.6.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rguenth at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45415
