From: Michael Niedermayer <michaelni@gmx.at>
Date: Mon, 12 Nov 2007 02:04:01 +0000 (+0000)
Subject: tring to workaround gcc 2.95 bug which causes random failures
X-Git-Tag: v0.5~6976
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=02d361919a0e53001c0ddc06ad1a828d6c6884d1;p=coroid%2Flibav_saccubus.git

tring to workaround gcc 2.95 bug which causes random failures

Originally committed as revision 11003 to svn://svn.ffmpeg.org/ffmpeg/trunk
---

diff --git a/libavcodec/i386/dsputil_mmx.c b/libavcodec/i386/dsputil_mmx.c
index 1ca13e74d..7a63d2562 100644
--- a/libavcodec/i386/dsputil_mmx.c
+++ b/libavcodec/i386/dsputil_mmx.c
@@ -1534,10 +1534,11 @@ static void sub_hfyu_median_prediction_mmx2(uint8_t *dst, uint8_t *src1, uint8_t
         "mov"#m1" "#mm"0, %0          \n\t"\
         DIFF_PIXELS_1(m0, mm##7, mm##0, (%1,%3,4), (%2,%3,4))\
         "mov"#m1" %0, "#mm"0          \n\t"\
-        : "=m"(temp), "+r"(p1b), "+r"(p2b)\
+        : "+m"(temp), "+r"(p1b), "+r"(p2b)\
         : "r"((long)stride), "r"((long)stride*3)\
     );\
 }
+    //the "+m"(temp) is needed as gcc 2.95 sometimes fails to compile "=m"(temp)
 
 #define DIFF_PIXELS_4x8(p1,p2,stride,temp) DIFF_PIXELS_8(d, q,   %%mm,  p1, p2, stride, temp)
 #define DIFF_PIXELS_8x8(p1,p2,stride,temp) DIFF_PIXELS_8(q, dqa, %%xmm, p1, p2, stride, temp)