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Add __glibc_likely as an alias for __builtin_expect when available

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Siddhesh Poyarekar
2012-12-28 11:53:01 +05:30
parent 99136f8202
commit 91998e449e
2 changed files with 5 additions and 0 deletions
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misc/sys/cdefs.h
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@@ -378,8 +378,10 @@
#if __GNUC__ >= 3
# define __glibc_unlikely(cond) __builtin_expect((cond), 0)
# define __glibc_likely(cond) __builtin_expect((cond), 1)
#else
# define __glibc_unlikely(cond) (cond)
# define __glibc_likely(cond) (cond)
#endif
#include <bits/wordsize.h>