https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101865
--- Comment #12 from Tulio Magno Quites Machado Filho <tuliom at ascii dot art.br> --- There is a chance, that my previous comment is wrong with regards the generation of VSX instructions for Power8. I don't know what the second command means: $ gcc-11 -mcpu=power10 -dM -E - < /dev/null | grep -E 'VECTOR|VSX|ALTIVEC' #define __VSX__ 1 #define __ALTIVEC__ 1 #define __POWER9_VECTOR__ 1 #define __APPLE_ALTIVEC__ 1 #define __POWER8_VECTOR__ 1 $ gcc-11 -mcpu=power10 -mno-power8-vector -dM -E - < /dev/null | grep -E 'VECTOR|VSX|ALTIVEC' #define __VSX__ 1 #define __ALTIVEC__ 1 #define __APPLE_ALTIVEC__ 1
