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Add missing declarations for MSVC intrinsics.

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This commit is contained in:
Mike Pall 2012-07-09 15:54:25 +02:00
parent b23a7830d2
commit 6e4d0fdc8e
1 changed files with 5 additions and 0 deletions
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5
src/lj_def.h
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@ -242,6 +242,11 @@ static LJ_AINLINE uint32_t lj_getu32(const void *p)
#define LJ_FASTCALL __fastcall
#endif
unsigned char _BitScanForward(uint32_t *, unsigned long);
unsigned char _BitScanReverse(uint32_t *, unsigned long);
unsigned long _byteswap_ulong(unsigned long);
uint64_t _byteswap_uint64(uint64_t);
static LJ_AINLINE uint32_t lj_ffs(uint32_t x)
{
uint32_t r; _BitScanForward(&r, x); return r;