https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61770
--- Comment #2 from Mikael Pettersson <mikpelinux at gmail dot com> --- (In reply to R. Dragone from comment #1) > Just encountered the same problem myself. > > >> gcc -march=native -E -v - </dev/null 2>&1 | grep cc1 > /usr/libexec/gcc/x86_64-pc-linux-gnu/4.7.3/cc1 -E -quiet -v - > -march=corei7-avx -mcx16 -msahf -mno-movbe -mno-aes -mpclmul -mpopcnt > -mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-bmi2 -mno-tbm > -mno-avx -mno-avx2 -march=corei7-avx -mno-avx -mno-avvx2 looks strange, but should (in principle) work. Is there an actual code generation error (avx code erroneously emitted)? 4.7 is no longer maintained, please check if 4.8.3 and 4.9.1 have the same issue.
