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lavr: x86: improve non-SSE4 version of S16_TO_S32_SX macro

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Removes a false dependency on existing contents of the 2nd dst register,
giving better performance for OOE.
This commit is contained in:
Justin Ruggles 2012-06-26 16:50:10 -04:00
parent 743f07062a
commit e9da9a3111
1 changed files with 2 additions and 1 deletions
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3
libavresample/x86/util.asm
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@ -26,7 +26,8 @@
pmovsxwd m%1, m%1 pmovsxwd m%1, m%1
SWAP %1, %2 SWAP %1, %2
%else %else
punpckhwd m%2, m%1 mova m%2, m%1
punpckhwd m%2, m%2
punpcklwd m%1, m%1 punpcklwd m%1, m%1
psrad m%2, 16 psrad m%2, 16
psrad m%1, 16 psrad m%1, 16