diff options
Diffstat (limited to 'prelude')
| -rw-r--r-- | prelude/slang-cuda-prelude.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/prelude/slang-cuda-prelude.h b/prelude/slang-cuda-prelude.h index 1ca93d9d1..ce8e925a2 100644 --- a/prelude/slang-cuda-prelude.h +++ b/prelude/slang-cuda-prelude.h @@ -441,6 +441,12 @@ __forceinline__ __device__ uint32_t _getLaneId() } #endif +// Return mask of all the lanes less than the current lane +__forceinline__ __device__ int _getLaneLtMask() +{ + return (int(1) << _getLaneId()) - 1; +} + // Note! Note will return true if mask is 0, but thats okay, because there must be one // lane active to execute anything __inline__ __device__ bool _waveIsSingleLane(int mask) |