http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57777
Piotr <lbbsome9 at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |lbbsome9 at gmail dot com --- Comment #11 from Piotr <lbbsome9 at gmail dot com> --- (In reply to Julian Ospald from comment #7) > (In reply to Jakub Jelinek from comment #6) > > Created attachment 30425 [details] > > gcc49-pr57777.patch > > > > Untested fix. > > I have tested that patch on gcc-4.8 and was able to compile the python > module successfully with "-march=core-avx2 -O3". > > gcc-4.8 is affected as well without that patch, as the title correctly says. I had a similar situation with gcc 4.8.1, with "-O3 -march=core-avx2" and had to pass -mno-avx2 in order to compile. For the sake of curiosity could you confirm if "-O3 -march=core-avx2 -mno-avx2" compiles? gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.1/lto-wrapper Target: x86_64-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-isl=/builddir/build/BUILD/gcc-4.8.1-20130603/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/BUILD/gcc-4.8.1-20130603/obj-x86_64-redhat-linux/cloog-install --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux Thread model: posix gcc version 4.8.1 20130603 (Red Hat 4.8.1-1) (GCC) system, fedora19