We don't document the -mno-xxx variants for other flags here, and the paragraph here specifically says "Each has a corresponding -mno- option to disable use of these instructions". Drop the -mno-fma4 line.
2016-01-31 Mike Frysinger <vap...@gentoo.org> * doc/invoke.texi: Delete -mno-fma4. --- gcc/doc/invoke.texi | 3 --- 1 file changed, 3 deletions(-) diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index ba0b4b2..fd05deb 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -23458,9 +23458,6 @@ preferred alignment to @option{-mpreferred-stack-boundary=2}. @itemx -mfma4 @opindex mfma4 @need 200 -@itemx -mno-fma4 -@opindex mno-fma4 -@need 200 @itemx -mprefetchwt1 @opindex mprefetchwt1 @need 200 -- 2.6.2