xref: /llvm-project/clang/test/CodeGenCUDA/Inputs/cuda.h (revision 7c3fdcc27603cd2d6b01fa7b057b3099da75bc8d)
1 /* Minimal declarations for CUDA support.  Testing purposes only. */
2 
3 #include <stddef.h>
4 
5 #if __HIP__ || __CUDA__
6 #define __constant__ __attribute__((constant))
7 #define __device__ __attribute__((device))
8 #define __global__ __attribute__((global))
9 #define __host__ __attribute__((host))
10 #define __shared__ __attribute__((shared))
11 #if __HIP__
12 #define __managed__ __attribute__((managed))
13 #endif
14 #define __launch_bounds__(...) __attribute__((launch_bounds(__VA_ARGS__)))
15 #define __grid_constant__ __attribute__((grid_constant))
16 #else
17 #define __constant__
18 #define __device__
19 #define __global__
20 #define __host__
21 #define __shared__
22 #define __managed__
23 #define __launch_bounds__(...)
24 #define __grid_constant__
25 #endif
26 
27 struct dim3 {
28   unsigned x, y, z;
29   __host__ __device__ dim3(unsigned x, unsigned y = 1, unsigned z = 1) : x(x), y(y), z(z) {}
30 };
31 
32 #if __HIP__ || HIP_PLATFORM
33 typedef struct hipStream *hipStream_t;
34 typedef enum hipError {} hipError_t;
35 int hipConfigureCall(dim3 gridSize, dim3 blockSize, size_t sharedSize = 0,
36                      hipStream_t stream = 0);
37 extern "C" hipError_t __hipPushCallConfiguration(dim3 gridSize, dim3 blockSize,
38                                                  size_t sharedSize = 0,
39                                                  hipStream_t stream = 0);
40 #ifndef __HIP_API_PER_THREAD_DEFAULT_STREAM__
41 extern "C" hipError_t hipLaunchKernel(const void *func, dim3 gridDim,
42                                       dim3 blockDim, void **args,
43                                       size_t sharedMem,
44                                       hipStream_t stream);
45 #else
46 extern "C" hipError_t hipLaunchKernel_spt(const void *func, dim3 gridDim,
47                                       dim3 blockDim, void **args,
48                                       size_t sharedMem,
49                                       hipStream_t stream);
50 #endif // __HIP_API_PER_THREAD_DEFAULT_STREAM__
51 #elif __OFFLOAD_VIA_LLVM__
52 extern "C" unsigned __llvmPushCallConfiguration(dim3 gridDim, dim3 blockDim,
53                                      size_t sharedMem = 0, void *stream = 0);
54 extern "C" unsigned llvmLaunchKernel(const void *func, dim3 gridDim, dim3 blockDim,
55                           void **args, size_t sharedMem = 0, void *stream = 0);
56 #else
57 typedef struct cudaStream *cudaStream_t;
58 typedef enum cudaError {} cudaError_t;
59 extern "C" int cudaConfigureCall(dim3 gridSize, dim3 blockSize,
60                                  size_t sharedSize = 0,
61                                  cudaStream_t stream = 0);
62 extern "C" int __cudaPushCallConfiguration(dim3 gridSize, dim3 blockSize,
63                                            size_t sharedSize = 0,
64                                            cudaStream_t stream = 0);
65 extern "C" cudaError_t cudaLaunchKernel(const void *func, dim3 gridDim,
66                                         dim3 blockDim, void **args,
67                                         size_t sharedMem, cudaStream_t stream);
68 extern "C" cudaError_t cudaLaunchKernel_ptsz(const void *func, dim3 gridDim,
69                                         dim3 blockDim, void **args,
70                                         size_t sharedMem, cudaStream_t stream);
71 
72 #endif
73 
74 extern "C" __device__ int printf(const char*, ...);
75