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[CUDA] More fixes for __shfl_* intrinsics. 

* __shfl_{up,down}* uses unsigned int for the third parameter.
* added [unsigned] long overloads for non-sync shuffles.

Differential Revision: https://reviews.llvm.org/D41521

llvm-svn: 321326
This commit is contained in:
Artem Belevich 2017-12-21 23:52:09 +00:00
parent 170de4b4ba
commit 3cebc738b6
1 changed files with 49 additions and 28 deletions
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75
clang/lib/Headers/__clang_cuda_intrinsics.h
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@ -34,23 +34,24 @@
#if !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 300
#pragma push_macro("__MAKE_SHUFFLES")
#define __MAKE_SHUFFLES(__FnName, __IntIntrinsic, __FloatIntrinsic, __Mask) \
inline __device__ int __FnName(int __val, int __offset, \
#define __MAKE_SHUFFLES(__FnName, __IntIntrinsic, __FloatIntrinsic, __Mask, \
__Type) \
inline __device__ int __FnName(int __val, __Type __offset, \
int __width = warpSize) { \
return __IntIntrinsic(__val, __offset, \
((warpSize - __width) << 8) | (__Mask)); \
} \
inline __device__ float __FnName(float __val, int __offset, \
inline __device__ float __FnName(float __val, __Type __offset, \
int __width = warpSize) { \
return __FloatIntrinsic(__val, __offset, \
((warpSize - __width) << 8) | (__Mask)); \
} \
inline __device__ unsigned int __FnName(unsigned int __val, int __offset, \
inline __device__ unsigned int __FnName(unsigned int __val, __Type __offset, \
int __width = warpSize) { \
return static_cast<unsigned int>( \
::__FnName(static_cast<int>(__val), __offset, __width)); \
} \
inline __device__ long long __FnName(long long __val, int __offset, \
inline __device__ long long __FnName(long long __val, __Type __offset, \
int __width = warpSize) { \
struct __Bits { \
int __a, __b; \
@ -65,12 +66,29 @@
memcpy(&__ret, &__tmp, sizeof(__tmp)); \
return __ret; \
} \
inline __device__ long __FnName(long __val, __Type __offset, \
int __width = warpSize) { \
_Static_assert(sizeof(long) == sizeof(long long) || \
sizeof(long) == sizeof(int)); \
if (sizeof(long) == sizeof(long long)) { \
return static_cast<long>( \
::__FnName(static_cast<long long>(__val), __offset, __width)); \
} else if (sizeof(long) == sizeof(int)) { \
return static_cast<long>( \
::__FnName(static_cast<int>(__val), __offset, __width)); \
} \
} \
inline __device__ unsigned long __FnName( \
unsigned long __val, __Type __offset, int __width = warpSize) { \
return static_cast<unsigned long>( \
::__FnName(static_cast<long>(__val), __offset, __width)); \
} \
inline __device__ unsigned long long __FnName( \
unsigned long long __val, int __offset, int __width = warpSize) { \
unsigned long long __val, __Type __offset, int __width = warpSize) { \
return static_cast<unsigned long long>(::__FnName( \
static_cast<unsigned long long>(__val), __offset, __width)); \
} \
inline __device__ double __FnName(double __val, int __offset, \
inline __device__ double __FnName(double __val, __Type __offset, \
int __width = warpSize) { \
long long __tmp; \
_Static_assert(sizeof(__tmp) == sizeof(__val)); \
@ -81,13 +99,15 @@
return __ret; \
}
__MAKE_SHUFFLES(__shfl, __nvvm_shfl_idx_i32, __nvvm_shfl_idx_f32, 0x1f);
__MAKE_SHUFFLES(__shfl, __nvvm_shfl_idx_i32, __nvvm_shfl_idx_f32, 0x1f, int);
// We use 0 rather than 31 as our mask, because shfl.up applies to lanes >=
// maxLane.
__MAKE_SHUFFLES(__shfl_up, __nvvm_shfl_up_i32, __nvvm_shfl_up_f32, 0);
__MAKE_SHUFFLES(__shfl_down, __nvvm_shfl_down_i32, __nvvm_shfl_down_f32, 0x1f);
__MAKE_SHUFFLES(__shfl_xor, __nvvm_shfl_bfly_i32, __nvvm_shfl_bfly_f32, 0x1f);
__MAKE_SHUFFLES(__shfl_up, __nvvm_shfl_up_i32, __nvvm_shfl_up_f32, 0,
unsigned int);
__MAKE_SHUFFLES(__shfl_down, __nvvm_shfl_down_i32, __nvvm_shfl_down_f32, 0x1f,
unsigned int);
__MAKE_SHUFFLES(__shfl_xor, __nvvm_shfl_bfly_i32, __nvvm_shfl_bfly_f32, 0x1f,
int);
#pragma pop_macro("__MAKE_SHUFFLES")
#endif // !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 300
@ -97,25 +117,26 @@ __MAKE_SHUFFLES(__shfl_xor, __nvvm_shfl_bfly_i32, __nvvm_shfl_bfly_f32, 0x1f);
// __shfl_sync_* variants available in CUDA-9
#pragma push_macro("__MAKE_SYNC_SHUFFLES")
#define __MAKE_SYNC_SHUFFLES(__FnName, __IntIntrinsic, __FloatIntrinsic, \
__Mask) \
inline __device__ int __FnName(unsigned int __mask, int __val, int __offset, \
int __width = warpSize) { \
__Mask, __Type) \
inline __device__ int __FnName(unsigned int __mask, int __val, \
__Type __offset, int __width = warpSize) { \
return __IntIntrinsic(__mask, __val, __offset, \
((warpSize - __width) << 8) | (__Mask)); \
} \
inline __device__ float __FnName(unsigned int __mask, float __val, \
int __offset, int __width = warpSize) { \
__Type __offset, int __width = warpSize) { \
return __FloatIntrinsic(__mask, __val, __offset, \
((warpSize - __width) << 8) | (__Mask)); \
} \
inline __device__ unsigned int __FnName(unsigned int __mask, \
unsigned int __val, int __offset, \
unsigned int __val, __Type __offset, \
int __width = warpSize) { \
return static_cast<unsigned int>( \
::__FnName(__mask, static_cast<int>(__val), __offset, __width)); \
} \
inline __device__ long long __FnName(unsigned int __mask, long long __val, \
int __offset, int __width = warpSize) { \
__Type __offset, \
int __width = warpSize) { \
struct __Bits { \
int __a, __b; \
}; \
@ -130,13 +151,13 @@ __MAKE_SHUFFLES(__shfl_xor, __nvvm_shfl_bfly_i32, __nvvm_shfl_bfly_f32, 0x1f);
return __ret; \
} \
inline __device__ unsigned long long __FnName( \
unsigned int __mask, unsigned long long __val, int __offset, \
unsigned int __mask, unsigned long long __val, __Type __offset, \
int __width = warpSize) { \
return static_cast<unsigned long long>(::__FnName( \
__mask, static_cast<unsigned long long>(__val), __offset, __width)); \
} \
inline __device__ long __FnName(unsigned int __mask, long __val, \
int __offset, int __width = warpSize) { \
__Type __offset, int __width = warpSize) { \
_Static_assert(sizeof(long) == sizeof(long long) || \
sizeof(long) == sizeof(int)); \
if (sizeof(long) == sizeof(long long)) { \
@ -147,14 +168,14 @@ __MAKE_SHUFFLES(__shfl_xor, __nvvm_shfl_bfly_i32, __nvvm_shfl_bfly_f32, 0x1f);
::__FnName(__mask, static_cast<int>(__val), __offset, __width)); \
} \
} \
inline __device__ unsigned long __FnName(unsigned int __mask, \
unsigned long __val, int __offset, \
inline __device__ unsigned long __FnName( \
unsigned int __mask, unsigned long __val, __Type __offset, \
int __width = warpSize) { \
return static_cast<unsigned long>( \
::__FnName(__mask, static_cast<long>(__val), __offset, __width)); \
} \
inline __device__ double __FnName(unsigned int __mask, double __val, \
int __offset, int __width = warpSize) { \
__Type __offset, int __width = warpSize) { \
long long __tmp; \
_Static_assert(sizeof(__tmp) == sizeof(__val)); \
memcpy(&__tmp, &__val, sizeof(__val)); \
@ -164,15 +185,15 @@ __MAKE_SHUFFLES(__shfl_xor, __nvvm_shfl_bfly_i32, __nvvm_shfl_bfly_f32, 0x1f);
return __ret; \
}
__MAKE_SYNC_SHUFFLES(__shfl_sync, __nvvm_shfl_sync_idx_i32,
__nvvm_shfl_sync_idx_f32, 0x1f);
__nvvm_shfl_sync_idx_f32, 0x1f, int);
// We use 0 rather than 31 as our mask, because shfl.up applies to lanes >=
// maxLane.
__MAKE_SYNC_SHUFFLES(__shfl_up_sync, __nvvm_shfl_sync_up_i32,
__nvvm_shfl_sync_up_f32, 0);
__nvvm_shfl_sync_up_f32, 0, unsigned int);
__MAKE_SYNC_SHUFFLES(__shfl_down_sync, __nvvm_shfl_sync_down_i32,
__nvvm_shfl_sync_down_f32, 0x1f);
__nvvm_shfl_sync_down_f32, 0x1f, unsigned int);
__MAKE_SYNC_SHUFFLES(__shfl_xor_sync, __nvvm_shfl_sync_bfly_i32,
__nvvm_shfl_sync_bfly_f32, 0x1f);
__nvvm_shfl_sync_bfly_f32, 0x1f, int);
#pragma pop_macro("__MAKE_SYNC_SHUFFLES")
inline __device__ void __syncwarp(unsigned int mask = 0xffffffff) {