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Properly fix MSVC intrinsics for older versions.

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Mike Pall 2013-02-24 12:41:53 +01:00
parent d4bc6ab756
commit 9b7d2e9276
1 changed files with 3 additions and 3 deletions
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6
src/lj_def.h
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@ -243,17 +243,17 @@ static LJ_AINLINE uint32_t lj_getu32(const void *p)
#endif
#ifdef _M_PPC
#pragma intrinsic(_CountLeadingZeros)
unsigned int _CountLeadingZeros(long);
#pragma intrinsic(_CountLeadingZeros)
static LJ_AINLINE uint32_t lj_fls(uint32_t x)
{
return _CountLeadingZeros(x) ^ 31;
}
#else
#pragma intrinsic(_BitScanForward)
#pragma intrinsic(_BitScanReverse)
unsigned char _BitScanForward(uint32_t *, unsigned long);
unsigned char _BitScanReverse(uint32_t *, unsigned long);
#pragma intrinsic(_BitScanForward)
#pragma intrinsic(_BitScanReverse)
static LJ_AINLINE uint32_t lj_ffs(uint32_t x)
{