On i686-apple-darwin9 from revision 138210 with -m64, I get the follwing ICE:
[ibook-dhum] f90/bug% gcc44 -m64 -O1 -msse2 -mfpmath=sse -march=k8 /opt/gcc/_gcc_clean/gcc/testsuite/gcc.target/i386/hot-1.c /opt/gcc/_gcc_clean/gcc/testsuite/gcc.target/i386/hot-1.c: In function 'not_hot': /opt/gcc/_gcc_clean/gcc/testsuite/gcc.target/i386/hot-1.c:33: internal compiler error: in mems_in_disjoint_alias_sets_p, at alias.c:278 for gcc.target/i386/hot-1.c, opt-1.c, and opt-2.c. -- Summary: ICE: in mems_in_disjoint_alias_sets_p, at alias.c:278 Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dominiq at lps dot ens dot fr GCC build triplet: i686-apple-darwin9 GCC host triplet: i686-apple-darwin9 GCC target triplet: i686-apple-darwin9 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37106