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__clang_openmp_device_functions.h (2603B) - Raw

      1 /*===- __clang_openmp_device_functions.h - OpenMP device function declares -===
      2  *
      3  * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
      4  * See https://llvm.org/LICENSE.txt for license information.
      5  * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
      6  *
      7  *===-----------------------------------------------------------------------===
      8  */
      9 
     10 #ifndef __CLANG_OPENMP_DEVICE_FUNCTIONS_H__
     11 #define __CLANG_OPENMP_DEVICE_FUNCTIONS_H__
     12 
     13 #ifdef __cplusplus
     14 extern "C" {
     15 #endif
     16 
     17 #ifdef __NVPTX__
     18 #pragma omp begin declare variant match(                                       \
     19     device = {arch(nvptx, nvptx64)}, implementation = {extension(match_any)})
     20 
     21 #pragma push_macro("__CUDA__")
     22 #define __CUDA__
     23 #define __OPENMP_NVPTX__
     24 
     25 /// Include declarations for libdevice functions.
     26 #include <__clang_cuda_libdevice_declares.h>
     27 
     28 /// Provide definitions for these functions.
     29 #include <__clang_cuda_device_functions.h>
     30 
     31 #undef __OPENMP_NVPTX__
     32 #pragma pop_macro("__CUDA__")
     33 
     34 #pragma omp end declare variant
     35 #endif
     36 
     37 #ifdef __AMDGCN__
     38 #pragma omp begin declare variant match(device = {arch(amdgcn)})
     39 
     40 // Import types which will be used by __clang_hip_libdevice_declares.h
     41 #ifndef __cplusplus
     42 #include <stdint.h>
     43 #endif
     44 
     45 #define __OPENMP_AMDGCN__
     46 #pragma push_macro("__device__")
     47 #define __device__
     48 
     49 /// Include declarations for libdevice functions.
     50 #include <__clang_hip_libdevice_declares.h>
     51 
     52 #pragma pop_macro("__device__")
     53 #undef __OPENMP_AMDGCN__
     54 
     55 #pragma omp end declare variant
     56 #endif
     57 
     58 #ifdef __cplusplus
     59 } // extern "C"
     60 #endif
     61 
     62 // Ensure we make `_ZdlPv`, aka. `operator delete(void*)` available without the
     63 // need to `include <new>` in C++ mode.
     64 #ifdef __cplusplus
     65 
     66 // We require malloc/free.
     67 #include <cstdlib>
     68 
     69 #pragma push_macro("OPENMP_NOEXCEPT")
     70 #if __cplusplus >= 201103L
     71 #define OPENMP_NOEXCEPT noexcept
     72 #else
     73 #define OPENMP_NOEXCEPT
     74 #endif
     75 
     76 // Device overrides for non-placement new and delete.
     77 inline void *operator new(__SIZE_TYPE__ size) {
     78   if (size == 0)
     79     size = 1;
     80   return ::malloc(size);
     81 }
     82 
     83 inline void *operator new[](__SIZE_TYPE__ size) { return ::operator new(size); }
     84 
     85 inline void operator delete(void *ptr)OPENMP_NOEXCEPT { ::free(ptr); }
     86 
     87 inline void operator delete[](void *ptr) OPENMP_NOEXCEPT {
     88   ::operator delete(ptr);
     89 }
     90 
     91 // Sized delete, C++14 only.
     92 #if __cplusplus >= 201402L
     93 inline void operator delete(void *ptr, __SIZE_TYPE__ size)OPENMP_NOEXCEPT {
     94   ::operator delete(ptr);
     95 }
     96 inline void operator delete[](void *ptr, __SIZE_TYPE__ size) OPENMP_NOEXCEPT {
     97   ::operator delete(ptr);
     98 }
     99 #endif
    100 
    101 #pragma pop_macro("OPENMP_NOEXCEPT")
    102 #endif
    103 
    104 #endif