diff options
| author | José Fonseca <[email protected]> | 2009-06-01 08:58:34 -0700 |
|---|---|---|
| committer | José Fonseca <[email protected]> | 2009-09-14 20:12:01 +0100 |
| commit | 88b88bba68af2f5d3243ebc77f32e47aa747d5f7 (patch) | |
| tree | bff5f78db1e7c9c44eeaddeca124f69e79ed969e | |
| parent | aa522e6cc434fbe37203152de2d5d513ab640c67 (diff) | |
util: Add _BitScanForward intrinsic's declaration.
It is missing in some Microsoft DDKs.
| -rw-r--r-- | src/gallium/auxiliary/util/u_math.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h index b12c97dfb4d..b428dc544c3 100644 --- a/src/gallium/auxiliary/util/u_math.h +++ b/src/gallium/auxiliary/util/u_math.h @@ -354,7 +354,9 @@ util_is_pot(unsigned x) * Find first bit set in word. Least significant bit is 1. * Return 0 if no bits set. */ -#if defined(_MSC_VER) && _MSC_VER >= 1300 +#if defined(_MSC_VER) && _MSC_VER >= 1300 && (_M_IX86 || _M_AMD64 || _M_IA64) +unsigned char _BitScanForward(unsigned long* Index, unsigned long Mask); +#pragma intrinsic(_BitScanForward) static INLINE unsigned long ffs( unsigned long u ) { |