[FFmpeg-cvslog] audiodsp/x86: clear the high bits of the order parameter on 64bit

[Anton Khirnov]

ffmpeg | branch: master | Anton Khirnov <anton at khirnov.net> | Tue Aug  9 14:17:15 2016 +0200| [75d98e30afab61542faab3c0f11880834653bd6b] | committer: Anton Khirnov

audiodsp/x86: clear the high bits of the order parameter on 64bit

Also change shl to add, since it can be faster on some CPUs.

CC: libav-stable at libav.org

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=75d98e30afab61542faab3c0f11880834653bd6b
---

 libavcodec/x86/audiodsp.asm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/x86/audiodsp.asm b/libavcodec/x86/audiodsp.asm
index dc38ada..d7e63eb 100644
--- a/libavcodec/x86/audiodsp.asm
+++ b/libavcodec/x86/audiodsp.asm
@@ -26,7 +26,7 @@ SECTION .text
 %macro SCALARPRODUCT 0
 ; int ff_scalarproduct_int16(int16_t *v1, int16_t *v2, int order)
 cglobal scalarproduct_int16, 3,3,3, v1, v2, order
-    shl orderq, 1
+    add orderd, orderd
     add v1q, orderq
     add v2q, orderq
     neg orderq