[FFmpeg-cvslog] dct-test: give emms a memory clober.

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Fri Jun  1 19:16:14 2012 +0200| [0d83edaba9f4b298fa8a645a032bc84e0c03ef1b] | committer: Michael Niedermayer

dct-test: give emms a memory clober.

Without this, the compiler in theory could attempt to keep
things in float registers across the emms which would cause
bad things to happen.

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0d83edaba9f4b298fa8a645a032bc84e0c03ef1b
---

 libavcodec/dct-test.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/dct-test.c b/libavcodec/dct-test.c
index f85bccb..c75202a 100644
--- a/libavcodec/dct-test.c
+++ b/libavcodec/dct-test.c
@@ -204,7 +204,7 @@ static inline void mmx_emms(void)
 {
 #if HAVE_MMX
     if (cpu_flags & AV_CPU_FLAG_MMX)
-        __asm__ volatile ("emms\n\t");
+        __asm__ volatile ("emms\n\t" ::: "memory");
 #endif
 }