https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58044
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
-msse2avx
-mno-sse2avx
Specify that the assembler should encode SSE instructions with VEX prefix. The
option -mavx turns this on by default.
And:
GCC depresses SSEx instructions when -mavx is used. Instead, it generates new
AVX instructions or AVX equivalence for all SSEx instructions when needed.
So this is documented this way.
