------- Comment #2 from hjl dot tools at gmail dot com 2008-11-20 16:57 ------- (In reply to comment #1) > 1) -msse5 includes -mfma switch (because fma is a part of sse5 instructions). > So having "-msse5 -mfma" is same as having just "msse5", though you can just > have -fma (without -msse5).
Please look closely. I added -mfma to i386.opt: --- mfma Target Report Mask(ISA_FMA) Var(ix86_isa_flags) VarExists Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX and FMA built-in functions and code generation --- It has nothing to with SSE5. SSE5 never implies TARGET_FMA. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38201
