AuroraMiddleware/zstd
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__builtin_prefetch did probably not exist before gcc 3.1.

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fbrosson 2018-05-18 18:40:11 +00:00
parent bd6417de7f
commit 291824f49d
1 changed files with 1 additions and 1 deletions
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2
lib/common/compiler.h
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@ -92,7 +92,7 @@
#if defined(_MSC_VER) && (defined(_M_X64) || defined(_M_I86)) /* _mm_prefetch() is not defined outside of x86/x64 */
# include <mmintrin.h> /* https://msdn.microsoft.com/fr-fr/library/84szxsww(v=vs.90).aspx */
# define PREFETCH(ptr) _mm_prefetch((const char*)ptr, _MM_HINT_T0)
#elif defined(__GNUC__)
#elif defined(__GNUC__) && ( (__GNUC__ >= 4) || ( (__GNUC__ == 3) && (__GNUC_MINOR__ >= 1) ) )
# define PREFETCH(ptr) __builtin_prefetch(ptr, 0, 0)
#else
# define PREFETCH(ptr) /* disabled */