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Merge pull request #71 from alberts/crc32 

crc32c: choose function in static initialization
This commit is contained in:
Igor Canadi 2014-02-05 08:23:56 -08:00
parent 2966d764cd d411dc5884
commit 183ba01a0e
1 changed files with 2 additions and 5 deletions
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7
util/crc32c.cc
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@ -333,17 +333,14 @@ static bool isSSE42() {
}
typedef void (*Function)(uint64_t*, uint8_t const**);
static Function func = nullptr;
static inline Function Choose_CRC32() {
return isSSE42() ? Fast_CRC32 : Slow_CRC32;
}
static Function func = Choose_CRC32();
static inline void CRC32(uint64_t* l, uint8_t const **p) {
if (func != nullptr) {
return func(l, p);
}
func = Choose_CRC32();
func(l, p);
}