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authorJose Fonseca <[email protected]>2016-04-18 12:08:35 +0100
committerJose Fonseca <[email protected]>2016-04-26 17:17:00 +0100
commitdcc3baf7331f7cb920a73e0349a7622bfe46f647 (patch)
tree5431ad05455a5252f2d37afc014d0c2454f6a9fd /src/gallium/auxiliary
parent9a25c8af1b7fad0e7b3f3f3b4cbf6ae6e32e0e4d (diff)
gallium: Include intrin.h instead of defining ourselves.
More portable, particularly when building with Clang, which implements all MSVC intrisincs in its own intrin.h, but doesn't actually support `#pragma instrinsic`. Reviewed-by: Roland Scheidegger <[email protected]> Reviewed-by: Brian Paul <[email protected]>
Diffstat (limited to 'src/gallium/auxiliary')
-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 )
{