From 41260a9bf63aa61f88f188053f1ed4dba3a852d2 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 8 Feb 2011 22:58:35 +0000 Subject: i965: Use compiler builtins when available Signed-off-by: Chris Wilson --- src/mesa/main/imports.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'src/mesa/main/imports.h') diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h index 5ea647ad8d..a994dbcae8 100644 --- a/src/mesa/main/imports.h +++ b/src/mesa/main/imports.h @@ -539,6 +539,18 @@ _mesa_inv_sqrtf(float x); extern void _mesa_init_sqrt_table(void); +#ifdef __GNUC__ +#define _mesa_ffs(i) ffs(i) +#define _mesa_ffsll(i) ffsll(i) + +#if ((_GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4) +#define _mesa_bitcount(i) __builtin_popcount(i) +#else +extern unsigned int +_mesa_bitcount(unsigned int n); +#endif + +#else extern int _mesa_ffs(int32_t i); @@ -547,6 +559,7 @@ _mesa_ffsll(int64_t i); extern unsigned int _mesa_bitcount(unsigned int n); +#endif extern GLhalfARB _mesa_float_to_half(float f); -- cgit v1.2.3