Use add instead of lshift in mmxext vp8 idct

Originally committed as revision 23891 to svn://svn.ffmpeg.org/ffmpeg/trunk

Use add instead of lshift in mmxext vp8 idct
Originally committed as revision 23891 to svn://svn.ffmpeg.org/ffmpeg/trunk
82a8d0f1 · Jason Garrett-Glaser · 565344e7 · 82a8d0f1
Commit 82a8d0f1 authored Jun 29, 2010 by Jason Garrett-Glaser
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vp8dsp.asm libavcodec/x86/vp8dsp.asm +2 -2

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--- a/libavcodec/x86/vp8dsp.asm
+++ b/libavcodec/x86/vp8dsp.asm
@@ -939,8 +939,8 @@ cglobal vp8_idct_dc_add_sse4, 3, 3, 6
    pmulhw    %4, m6 ;20091(2)
    paddw     %3, %1
    paddw     %4, %2
-    psllw     %1, 1
-    psllw     %2, 1
+    paddw     %1, %1
+    paddw     %2, %2
    pmulhw    %1, m7 ;35468(1)
    pmulhw    %2, m7 ;35468(2)
    psubw     %1, %4