On 11/13/2017 10:25 AM, Shalnov, Sergey wrote:
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 4427328..bc9eb85 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -26087,15 +26087,24 @@ before a transfer of control flow out of the function
to minimize
the AVX to SSE transition penalty as well as remove unnecessary
@code{zeroupper}
intrinsics.
-@item -mprefer-avx128
-@opindex mprefer-avx128
-This option instructs GCC to use 128-bit AVX instructions instead of
-256-bit AVX instructions in the auto-vectorizer.
+@item -mprefer-vector-width=@var{opt}
+@opindex mprefer-vector-width
+This option instructs GCC to use @var{opt}-bit vector width in instructions
+instead of default on the selected platform.
-@item -mprefer-avx256
-@opindex mprefer-avx256
-This option instructs GCC to use 256-bit AVX instructions instead of
-512-bit AVX instructions in the auto-vectorizer.
+@table @samp
+@item none
+No extra limitations applied to GCC over than defined by the selected platform.
+
s/over than/other than/ ???
-Sandra
