saiislam created this revision. saiislam added reviewers: jdoerfert, ABataev, JonChesterfield. Herald added subscribers: cfe-commits, Anastasia. Herald added a project: clang. Harbormaster failed remote builds in B65994: Diff 281183! Harbormaster returned this revision to the author for changes because remote builds failed. saiislam updated this revision to Diff 281189. saiislam added a comment. saiislam requested review of this revision. Herald added a subscriber: sstefan1.
Fixed clang-tidy warnings. This header creates macros _DEVICE_ARCH and _DEVICE_GPU with values. This header exists because compiler macros are inconsistent in specifying if a compiliation is a device pass or a host pass. There is also inconsistency in how the device architecture and type are specified during a device pass. The inconsistencies are between OpenMP, CUDA, HIP, and OpenCL. The macro logic in this header is aware of these inconsistencies and sets useful values for _DEVICE_ARCH and _DEVICE_GPU during a device compilation. The macros will not be defined during a host compilation pass. So "#ifndef _DEVICE_ARCH" can be used by users to imply a host compilation. This header must remain a preprocessing header only because it is intended to be used by different languages. Originally authored by Greg Rodgers (@gregrodgers). Repository: rG LLVM Github Monorepo https://reviews.llvm.org/D84743 Files: clang/lib/Headers/offload_macros.h
Index: clang/lib/Headers/offload_macros.h =================================================================== --- /dev/null +++ clang/lib/Headers/offload_macros.h @@ -0,0 +1,118 @@ +//===--- offload_macros.h - Universal _DEVICE Offloading Macros Header ---===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===-----------------------------------------------------------------------=== +// +// This header creates macros _DEVICE_ARCH and _DEVICE_GPU with values. This +// header exists because compiler macros are inconsistent in specifying if a +// compiliation is a device pass or a host pass. There is also inconsistency in +// how the device architecture and type are specified during a device pass. The +// inconsistencies are between OpenMP, CUDA, HIP, and OpenCL. The macro logic +// in this header is aware of these inconsistencies and sets useful values for +// _DEVICE_ARCH and _DEVICE_GPU during a device compilation. The macros will +// not be defined during a host compilation pass. So "#ifndef _DEVICE_ARCH" can +// be used by users to imply a host compilation. This header must remain a +// preprocessing header only because it is intended to be used by different +// languages. +// +//===----------------------------------------------------------------------===// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_HEADERS_OFFLOAD_MACROS_H +#define LLVM_CLANG_LIB_HEADERS_OFFLOAD_MACROS_H + +#undef _DEVICE_GPU +#undef _DEVICE_ARCH + +#if defined(_OPENMP) +// OpenMP does not set architecture macros on host pass. +// So if either set, this is an OpenMP device pass. +#if defined(__AMDGCN__) || defined(__NVPTX__) +#if defined(__AMDGCN__) +#define _DEVICE_ARCH amdgcn +// _DEVICE_GPU set below +#else +#define _DEVICE_ARCH nvptx64 +#define _DEVICE_GPU __CUDA_ARCH__ +#endif +#endif +#elif defined(__CUDA_ARCH__) +// CUDA sets macros __NVPTX__ on host pass. So use __CUDA_ARCH__ +// to determine if this is device pass. +#define _DEVICE_ARCH nvptx64 +#define _DEVICE_GPU __CUDA_ARCH__ +#elif defined(__HIP_DEVICE_COMPILE__) +// HIP sets macros __AMDGCN__ on host pass. So use __HIP_DEVICE_COMPILE__ +// to determine if this is device pass. +#define _DEVICE_ARCH amdgcn +// _DEVICE_GPU set below +#elif defined(__SYCL_DEVICE_ONLY__) +#if defined(__AMDGCN__) +#define _DEVICE_ARCH amdgcn +// _DEVICE_GPU set below +#else +#define _DEVICE_ARCH nvptx64 +#define _DEVICE_GPU __CUDA_ARCH__ +#endif +#elif defined(__OPENCL_C_VERSION__) || defined(__OPENCL_CPP_VERSION__) +#if defined(__AMDGCN__) +#define _DEVICE_ARCH amdgcn +// _DEVICE_GPU set below +#endif +#if defined(__NVPTX__) +#define _DEVICE_ARCH nvptx64 +#define _DEVICE_GPU __CUDA_ARCH__ +#endif +#endif + +#if defined(_DEVICE_ARCH) && (_DEVICE_ARCH == amdgcn) +// AMD uses binary macros only, so create a value for _DEVICE_GPU +#if defined(__gfx906__) +#define _DEVICE_GPU 9060 +#elif defined(__gfx900__) +#define _DEVICE_GPU 9000 +#elif defined(__gfx601__) +#define _DEVICE_GPU 6010 +#elif defined(__gfx700__) +#define _DEVICE_GPU 7000 +#elif defined(__gfx701__) +#define _DEVICE_GPU 7010 +#elif defined(__gfx702__) +#define _DEVICE_GPU 7020 +#elif defined(__gfx703__) +#define _DEVICE_GPU 7030 +#elif defined(__gfx801__) +#define _DEVICE_GPU 8010 +#elif defined(__gfx802__) +#define _DEVICE_GPU 8020 +#elif defined(__gfx803__) +#define _DEVICE_GPU 8030 +#elif defined(__gfx810__) +#define _DEVICE_GPU 8100 +#elif defined(__gfx900__) +#define _DEVICE_GPU 9000 +#elif defined(__gfx902__) +#define _DEVICE_GPU 9020 +#elif defined(__gfx904__) +#define _DEVICE_GPU 9040 +#elif defined(__gfx906__) +#define _DEVICE_GPU 9060 +#elif defined(__gfx909__) +#define _DEVICE_GPU 9090 +#elif defined(__gfx1010__) +#define _DEVICE_GPU 10100 +#elif defined(__gfx1011__) +#define _DEVICE_GPU 10110 +#elif defined(__gfx1012__) +#define _DEVICE_GPU 10120 +#elif defined(__gfx1030__) +#define _DEVICE_GPU 10300 +#else +#define _DEVICE_GPU UNKNOWN +#endif +#endif + +#endif // LLVM_CLANG_LIB_HEADERS_OFFLOAD_MACROS_H \ No newline at end of file
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