On 03.10.2014 02:26, Marek Olšák wrote:
From: Marek Olšák <marek.ol...@amd.com>I'll need this in radeonsi. v2: use __builtin_popcountll if available --- src/gallium/auxiliary/util/u_math.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h index 39bd40f..f95c111 100644 --- a/src/gallium/auxiliary/util/u_math.h +++ b/src/gallium/auxiliary/util/u_math.h @@ -727,6 +727,18 @@ util_bitcount(unsigned n) #endif } + +static INLINE unsigned +util_bitcount64(uint64_t n) +{ +#ifdef HAVE___BUILTIN_POPCOUNTLL + return __builtin_popcountll(n); +#else + return util_bitcount(n) + util_bitcount(n >> 32); +#endif +}
Reviewed-by: Michel Dänzer <michel.daen...@amd.com> -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
