http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59494
--- Comment #8 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- With the patch in comment 7 the test succeeds for Target: x86_64-apple-darwin10.8.0 Configured with: ../work/configure --prefix=/opt/gcc/gcc4.9w --enable-languages=c,c++,fortran,objc,obj-c++,ada,java,lto --with-gmp=/opt/mp --with-system-zlib --with-isl=/opt/mp --enable-lto --enable-plugin and Target: x86_64-apple-darwin13.0.0 Configured with: ../work/configure --prefix=/opt/gcc/gcc4.9w --enable-languages=c,c++,fortran,objc,obj-c++,ada,java,lto --with-gmp=/opt/mp --with-system-zlib --with-isl=/opt/mp --enable-lto --enable-plugin --with-arch=corei7 --with-cpu=corei7 (tested with make -k check-gfortran RUNTESTFLAGS="vect.exp=fast-math-mgrid-resid.f --target_board=unix'{-m32,-m64}'").