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Use gcc/clang builtins for av_sat_(add|sub)_64_c if available.

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Signed-off-by: Dale Curtis <dalecurtis@chromium.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Dale Curtis
2020-05-01 10:20:43 -07:00
committed by Michael Niedermayer
parent 61c1df73d6
commit fda1c74539
2 changed files with 16 additions and 0 deletions
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6
libavutil/attributes.h
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@@ -34,6 +34,12 @@
# define AV_GCC_VERSION_AT_MOST(x,y) 0
#endif
#ifdef __has_builtin
# define AV_HAS_BUILTIN(x) __has_builtin(x)
#else
# define AV_HAS_BUILTIN(x) false
#endif
#ifndef av_always_inline
#if AV_GCC_VERSION_AT_LEAST(3,1)
# define av_always_inline __attribute__((always_inline)) inline