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-rw-r--r--src/gallium/auxiliary/util/u_math.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h
index 10f158b7086..4e58e505572 100644
--- a/src/gallium/auxiliary/util/u_math.h
+++ b/src/gallium/auxiliary/util/u_math.h
@@ -50,6 +50,10 @@
#include <strings.h> /* for ffs */
#endif
+#if defined(_MSC_VER)
+#include <intrin.h>
+#endif
+
#ifdef __cplusplus
extern "C" {
@@ -357,8 +361,6 @@ util_half_inf_sign(int16_t x)
#define FFS_DEFINED 1
#if defined(_MSC_VER) && (_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 )
{