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Enable branch-prediction hints with EVUTIL_UNLIKELY.

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This had been accidentally disabled.  Since it seems to work with GCC, I'm
turning it back on when GCC is present.
This commit is contained in:
Nick Mathewson 2010-01-06 18:41:46 -05:00
parent 29151e65b7
commit eaaf27f1f7
1 changed files with 1 additions and 1 deletions
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2
util-internal.h
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@ -150,7 +150,7 @@ long _evutil_weakrand(void);
/* Evaluates to the same boolean value as 'p', and hints to the compiler that /* Evaluates to the same boolean value as 'p', and hints to the compiler that
* we expect this value to be false. */ * we expect this value to be false. */
#ifdef __GNUC__X #ifdef __GNUC__
#define EVUTIL_UNLIKELY(p) __builtin_expect(!!(p),0) #define EVUTIL_UNLIKELY(p) __builtin_expect(!!(p),0)
#else #else
#define EVUTIL_UNLIKELY(p) (p) #define EVUTIL_UNLIKELY(p) (p)