I see two regressions after r214069 on x86_64-apple-darwin13 for both -m32 and -m64:
(1) FAIL: gcc.dg/graphite/vect-pr43423.c scan-tree-dump-times vect "vectorized 2 loops" 1 before I saw [Book15] f90/bug% grep vectorized vect-pr43423.c.114t.vect /opt/gcc/p_work/gcc/testsuite/gcc.dg/graphite/vect-pr43423.c:14:17: note: === vect_mark_stmts_to_be_vectorized === /opt/gcc/p_work/gcc/testsuite/gcc.dg/graphite/vect-pr43423.c:14:17: note: loop vectorized /opt/gcc/p_work/gcc/testsuite/gcc.dg/graphite/vect-pr43423.c:12:17: note: === vect_mark_stmts_to_be_vectorized === /opt/gcc/p_work/gcc/testsuite/gcc.dg/graphite/vect-pr43423.c:12:17: note: loop vectorized /opt/gcc/p_work/gcc/testsuite/gcc.dg/graphite/vect-pr43423.c:6:6: note: vectorized 2 loops in function. after I see [Book15] f90/bug% grep vectorized vect-pr43423.c.115t.vect /opt/gcc/p_work/gcc/testsuite/gcc.dg/graphite/vect-pr43423.c:14:17: note: not vectorized: not suitable for gather load _55 = a[_56]; /opt/gcc/p_work/gcc/testsuite/gcc.dg/graphite/vect-pr43423.c:12:17: note: not vectorized: not suitable for gather load _36 = a[_37]; /opt/gcc/p_work/gcc/testsuite/gcc.dg/graphite/vect-pr43423.c:6:6: note: vectorized 0 loops in function. (2) FAIL: gfortran.dg/graphite/pr42393.f90 -O (internal compiler error) FAIL: gfortran.dg/graphite/pr42393.f90 -O (test for excess errors) The backtrace is * thread #1: tid = 0x13bd91f, 0x00007fff8621aca0 libsystem_malloc.dylib`tiny_malloc_from_free_list + 12, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2, address=0x7fff5bc00ff8) frame #0: 0x00007fff8621aca0 libsystem_malloc.dylib`tiny_malloc_from_free_list + 12 libsystem_malloc.dylib`tiny_malloc_from_free_list + 12: -> 0x7fff8621aca0: pushq %rbx 0x7fff8621aca1: pushq %rax 0x7fff8621aca2: movl %edx, %r12d 0x7fff8621aca5: movq %rsi, %r14 (lldb) bt * thread #1: tid = 0x13bd91f, 0x00007fff8621aca0 libsystem_malloc.dylib`tiny_malloc_from_free_list + 12, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2, address=0x7fff5bc00ff8) * frame #0: 0x00007fff8621aca0 libsystem_malloc.dylib`tiny_malloc_from_free_list + 12 frame #1: 0x00007fff8621b3c3 libsystem_malloc.dylib`szone_malloc_should_clear + 320 frame #2: 0x00007fff8621d868 libsystem_malloc.dylib`malloc_zone_malloc + 71 frame #3: 0x00007fff8621e27c libsystem_malloc.dylib`malloc + 42 frame #4: 0x0000000141dbdc79 libgmp.10.dylib`__gmp_default_allocate + 9 frame #5: 0x0000000141dd0148 libgmp.10.dylib`__gmpz_init + 24 frame #6: 0x0000000141c180ef libisl.10.dylib`isl_basic_map_normalize_constraints + 47 frame #7: 0x0000000141c18f04 libisl.10.dylib`isl_basic_map_simplify + 68 frame #8: 0x0000000141c2509b libisl.10.dylib`isl_basic_set_preimage + 619 frame #9: 0x0000000141c4e146 libisl.10.dylib`isl_basic_set_sample_with_cone + 150 frame #10: 0x0000000141c4ea88 libisl.10.dylib`basic_set_sample + 744 frame #11: 0x0000000141c4e849 libisl.10.dylib`basic_set_sample + 169 frame #12: 0x0000000141c09978 libisl.10.dylib`isl_basic_map_is_empty + 136 frame #13: 0x0000000141bb2870 libisl.10.dylib`domain_follows_at_depth + 112 frame #14: 0x0000000141c7cdba libisl.10.dylib`isl_tarjan_components + 154 getting to the ICE take ~19s compared to less than a second before r214069. Dominique