The tests pr23816-1.c and vect-111.c (from gcc.dg/vect) generate an ICE when compiled with -fno-trapping-math for rs6000:
$ gcc pr23816-1.c -fno-trapping-math -ftree-vectorize -maltivec -O2 pr23816-1.c: In function 'foo': pr23816-1.c:9: internal compiler error: in rs6000_emit_vector_compare, at config/rs6000/rs6000.c:11962 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. $ gcc vect-111.c -fno-trapping-math -ftree-vectorize -maltivec -O2 vect-111.c: In function 'main1': vect-111.c:19: internal compiler error: in rs6000_emit_vector_compare, at config/rs6000/rs6000.c:11962 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. $ I have a patch for this that I'll submit... -- Summary: ICE in rs6000_emit_vector_compare when building with - fno-trapping-math Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jconner at apple dot com GCC host triplet: powerpc-apple-darwin8 GCC target triplet: powerpc-apple-darwin8 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30485
