ffmpeg roll of source to mar 9 version...

patched-ffmpeg-mt/libavcodec/x86/mathops.h

 /*
  * simple math operations
  * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> et al
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
@@ skipping 60 matching lines @@
 __asm__ volatile(\
     "cmpl  %0, %3       \n\t"\
     "cmovl %3, %0       \n\t"\
     "cmovl %4, %1       \n\t"\
     "cmovl %5, %2       \n\t"\
     : "+&r" (x), "+&r" (a), "+r" (c)\
     : "r" (y), "r" (b), "r" (d)\
 );
 #endif
 
+// avoid +32 for shift optimization (gcc should do that ...)
+#define NEG_SSR32 NEG_SSR32
+static inline  int32_t NEG_SSR32( int32_t a, int8_t s){
+    __asm__ ("sarl %1, %0\n\t"
+         : "+r" (a)
+         : "ic" ((uint8_t)(-s))
+    );
+    return a;
+}
+
+#define NEG_USR32 NEG_USR32
+static inline uint32_t NEG_USR32(uint32_t a, int8_t s){
+    __asm__ ("shrl %1, %0\n\t"
+         : "+r" (a)
+         : "ic" ((uint8_t)(-s))
+    );
+    return a;
+}
+
 #endif /* AVCODEC_X86_MATHOPS_H */