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Diffstat (limited to 'gas/doc/c-i386.texi')
| -rw-r--r-- | gas/doc/c-i386.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gas/doc/c-i386.texi b/gas/doc/c-i386.texi index 64e3397..77ccfbc 100644 --- a/gas/doc/c-i386.texi +++ b/gas/doc/c-i386.texi @@ -298,6 +298,16 @@ AVX instructions with 128bit vector length, which is the default. @option{-mavxscalar=@var{256}} will encode scalar AVX instructions with 256bit vector length. +@cindex @samp{-mvexwig=} option, i386 +@cindex @samp{-mvexwig=} option, x86-64 +@item -mvexwig=@var{0} +@itemx -mvexwig=@var{1} +These options control how the assembler should encode VEX.W-ignored (WIG) +VEX instructions. @option{-mvexwig=@var{0}} will encode WIG VEX +instructions with vex.w = 0, which is the default. +@option{-mvexwig=@var{1}} will encode WIG EVEX instructions with +vex.w = 1. + @cindex @samp{-mevexlig=} option, i386 @cindex @samp{-mevexlig=} option, x86-64 @item -mevexlig=@var{128} |