From 88b88bba68af2f5d3243ebc77f32e47aa747d5f7 Mon Sep 17 00:00:00 2001 From: José Fonseca Date: Mon, 1 Jun 2009 08:58:34 -0700 Subject: util: Add _BitScanForward intrinsic's declaration. It is missing in some Microsoft DDKs. --- src/gallium/auxiliary/util/u_math.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/gallium/auxiliary/util/u_math.h') diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h index b12c97dfb4..b428dc544c 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 ) { -- cgit v1.2.3