diff options
| author | Jonathan Gray <[email protected]> | 2015-03-17 12:49:39 +1100 |
|---|---|---|
| committer | Emil Velikov <[email protected]> | 2015-03-24 20:49:32 +0000 |
| commit | 726d99b19740dca6787ab819ab99bc9d942d80a6 (patch) | |
| tree | d9eb4da74190c7b2d18348c2c66e74016ba69f77 /src/gallium/auxiliary/util/u_math.h | |
| parent | 8cce7b05f19207d331a1abe294c201e0c3ee6ec1 (diff) | |
gallium/util: Use HAVE___BUILTIN_FFS* macros.
Make use of the builtin ffs macros and split out ffsll
to a seperate block. Needed for at least OpenBSD which
does not have ffsll in libc.
Signed-off-by: Jonathan Gray <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
Diffstat (limited to 'src/gallium/auxiliary/util/u_math.h')
| -rw-r--r-- | src/gallium/auxiliary/util/u_math.h | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h index 8f62cac664e..3d27a59e8c0 100644 --- a/src/gallium/auxiliary/util/u_math.h +++ b/src/gallium/auxiliary/util/u_math.h @@ -383,14 +383,28 @@ unsigned ffs( unsigned u ) return i; } -#elif defined(__MINGW32__) || defined(PIPE_OS_ANDROID) +#elif defined(__MINGW32__) || defined(PIPE_OS_ANDROID) || \ + defined(HAVE___BUILTIN_FFS) #define ffs __builtin_ffs -#define ffsll __builtin_ffsll #endif #endif /* FFS_DEFINED */ /** + * Find first bit set in long long. Least significant bit is 1. + * Return 0 if no bits set. + */ +#ifndef FFSLL_DEFINED +#define FFSLL_DEFINED 1 + +#if defined(__MINGW32__) || defined(PIPE_OS_ANDROID) || \ + defined(HAVE___BUILTIN_FFSLL) +#define ffsll __builtin_ffsll +#endif + +#endif /* FFSLL_DEFINED */ + +/** * Find last bit set in a word. The least significant bit is 1. * Return 0 if no bits are set. */ |