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x86inc: Make REP_RET identical to RET in SSSE3+ functions

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There's no point in emitting a rep prefix before ret on modern CPUs.
This commit is contained in:
Henrik Gramner 2017-04-20 19:16:51 +02:00 committed by James Darnley
parent 406e0ddc0b
commit 88dcdfad09
1 changed files with 1 additions and 1 deletions
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libavutil/x86/x86inc.asm
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@ -636,7 +636,7 @@ DECLARE_ARG 7, 8, 9, 10, 11, 12, 13, 14
; We can automatically detect "follows a branch", but not a branch target.
; (SSSE3 is a sufficient condition to know that your cpu doesn't have this problem.)
%macro REP_RET 0
%if has_epilogue
%if has_epilogue || cpuflag(ssse3)
RET
%else
rep ret