diff options
| -rw-r--r-- | src/gallium/auxiliary/util/u_math.h | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h index dd2ce01fc54..1e1bdf0cc79 100644 --- a/src/gallium/auxiliary/util/u_math.h +++ b/src/gallium/auxiliary/util/u_math.h @@ -398,7 +398,7 @@ unsigned ffs( unsigned u ) static INLINE unsigned util_last_bit(unsigned u) { -#if defined(__GNUC__) +#if defined(HAVE___BUILTIN_CLZ) return u == 0 ? 0 : 32 - __builtin_clz(u); #else unsigned r = 0; @@ -520,7 +520,7 @@ float_to_byte_tex(float f) static INLINE unsigned util_logbase2(unsigned n) { -#if defined(PIPE_CC_GCC) +#if defined(HAVE___BUILTIN_CLZ) return ((sizeof(unsigned) * 8 - 1) - __builtin_clz(n | 1)); #else unsigned pos = 0; @@ -540,7 +540,7 @@ util_logbase2(unsigned n) static INLINE unsigned util_next_power_of_two(unsigned x) { -#if defined(PIPE_CC_GCC) +#if defined(HAVE___BUILTIN_CLZ) if (x <= 1) return 1; @@ -572,7 +572,7 @@ util_next_power_of_two(unsigned x) static INLINE unsigned util_bitcount(unsigned n) { -#if defined(PIPE_CC_GCC) +#if defined(HAVE___BUILTIN_POPCOUNT) return __builtin_popcount(n); #else /* K&R classic bitcount. @@ -641,8 +641,7 @@ util_bitreverse(unsigned n) static INLINE uint32_t util_bswap32(uint32_t n) { -/* We need the gcc version checks for non-autoconf build system */ -#if defined(HAVE___BUILTIN_BSWAP32) || (defined(PIPE_CC_GCC) && (PIPE_CC_GCC_VERSION >= 403)) +#if defined(HAVE___BUILTIN_BSWAP32) return __builtin_bswap32(n); #else return (n >> 24) | |