https://sourceware.org/bugzilla/show_bug.cgi?id=25550
--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> --- We can say something like In addition to the basic instruction set, the assembler can be told to accept various extension mnemonics. 4 separate vector ISA extension families can be enabled or disabled independent of each other: * 'MMX' - MMX instructions. * 'SSE' - SSE instructions without MMX registers. * 'AVX' - AVX instructions. * 'AVX512' - AVX512 instructions. -- You are receiving this mail because: You are on the CC list for the bug.