Merge commit '33b88f2a'

* commit '33b88f2a':
  msvc/icl: Use __declspec(noinline)
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavutil/attributes.h

@@ -52,6 +52,8 @@
 
 #if AV_GCC_VERSION_AT_LEAST(3,1)
 #    define av_noinline __attribute__((noinline))
+#elif defined(_MSC_VER)
+#    define av_noinline __declspec(noinline)
 #else
 #    define av_noinline
 #endif