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HIP is a language similar to CUDA (https://github.com/ROCm-Developer-Tools/HIP/blob/master/docs/markdown/hip_kernel_language.md ). The language syntax is very similar, which allows a hip program to be compiled as a CUDA program by Clang. The main difference is the host API. HIP has a set of vendor neutral host API which can be implemented on different platforms. Currently there is open source implementation of HIP runtime on amdgpu target (https://github.com/ROCm-Developer-Tools/HIP). This patch adds support of input kind and language standard hip. When hip file is compiled, both LangOpts.CUDA and LangOpts.HIP is turned on. This allows compilation of hip program as CUDA in most cases and only special handling of hip program is needed LangOpts.HIP is checked. This patch also adds support of kernel launching of HIP program using HIP host API. When -x hip is not specified, there is no behaviour change for CUDA. Patch by Greg Rodgers. Revised and lit test added by Yaxun Liu. Differential Revision: https://reviews.llvm.org/D44984 llvm-svn: 330790
28 lines
882 B
C
28 lines
882 B
C
/* Minimal declarations for CUDA support. Testing purposes only. */
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#include <stddef.h>
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#define __constant__ __attribute__((constant))
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#define __device__ __attribute__((device))
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#define __global__ __attribute__((global))
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#define __host__ __attribute__((host))
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#define __shared__ __attribute__((shared))
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#define __launch_bounds__(...) __attribute__((launch_bounds(__VA_ARGS__)))
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struct dim3 {
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unsigned x, y, z;
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__host__ __device__ dim3(unsigned x, unsigned y = 1, unsigned z = 1) : x(x), y(y), z(z) {}
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};
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typedef struct cudaStream *cudaStream_t;
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#ifdef __HIP__
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int hipConfigureCall(dim3 gridSize, dim3 blockSize, size_t sharedSize = 0,
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cudaStream_t stream = 0);
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#else
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int cudaConfigureCall(dim3 gridSize, dim3 blockSize, size_t sharedSize = 0,
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cudaStream_t stream = 0);
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#endif
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extern "C" __device__ int printf(const char*, ...);
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