avutil/x86util: don't use movss in VBROADCASTSS macro when src and dst args are the same

Reviewed-by: Henrik Gramner <henrik@gramner.com> Signed-off-by: James Almer <jamrial@gmail.com>
2017-03-20 19:39:49 -03:00 · 2017-03-20 19:39:49 -03:00 · d8962ffbd8
parent fc9f14c7de
commit d8962ffbd8
1 changed files with 2 additions and 0 deletions
--- a/libavutil/x86/x86util.asm
+++ b/libavutil/x86/x86util.asm
@ -833,7 +833,9 @@
 %if cpuflag(avx)
    vbroadcastss %1, %2
 %else ; sse
+%ifnidn %1, %2
    movss        %1, %2
+%endif
    shufps       %1, %1, 0
 %endif
 %endmacro