http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58472
--- Comment #4 from vincenzo Innocente <vincenzo.innocente at cern dot ch> --- gcc -O2 libgomp/testsuite/libgomp.c/simd-3.c -fopenmp libgomp/testsuite/libgomp.c/simd-3.c: In function ‘foo’: libgomp/testsuite/libgomp.c/simd-3.c:14:1: internal compiler error: in vectorizable_store, at tree-vect-stmts.c:4192 foo (int *p) ^ libgomp/testsuite/libgomp.c/simd-3.c:14:1: internal compiler error: Abort trap: 6 gcc: internal compiler error: Abort trap: 6 (program cc1) Abort trap: 6 agree that something is fishy here gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/x86_64-apple-darwin12.4.0/4.9.0/lto-wrapper Target: x86_64-apple-darwin12.4.0 Configured with: ./configure --disable-multilib --disable-bootstrap --enable-lto -disable-libitm --enable-languages=c,c++,fortran,lto --disable-libsanitizer : (reconfigured) ./configure --disable-multilib --disable-bootstrap --enable-lto -disable-libitm --enable-languages=c,c++,fortran,lto --disable-libsanitizer Thread model: posix gcc version 4.9.0 20130918 (experimental) [gomp-4_0-branch revision 202735] (GCC)