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  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. #ifndef _OPENMP
  14. #error "This file is for OpenMP compilation only."
  15. #endif
  16.  
  17. #ifdef __cplusplus
  18. extern "C" {
  19. #endif
  20.  
  21. #pragma omp begin declare variant match(                                       \
  22.     device = {arch(nvptx, nvptx64)}, implementation = {extension(match_any)})
  23.  
  24. #define __CUDA__
  25. #define __OPENMP_NVPTX__
  26.  
  27. /// Include declarations for libdevice functions.
  28. #include <__clang_cuda_libdevice_declares.h>
  29.  
  30. /// Provide definitions for these functions.
  31. #include <__clang_cuda_device_functions.h>
  32.  
  33. #undef __OPENMP_NVPTX__
  34. #undef __CUDA__
  35.  
  36. #pragma omp end declare variant
  37.  
  38. #ifdef __AMDGCN__
  39. #pragma omp begin declare variant match(device = {arch(amdgcn)})
  40.  
  41. // Import types which will be used by __clang_hip_libdevice_declares.h
  42. #ifndef __cplusplus
  43. #include <stdbool.h>
  44. #include <stdint.h>
  45. #endif
  46.  
  47. #define __OPENMP_AMDGCN__
  48. #pragma push_macro("__device__")
  49. #define __device__
  50.  
  51. /// Include declarations for libdevice functions.
  52. #include <__clang_hip_libdevice_declares.h>
  53.  
  54. #pragma pop_macro("__device__")
  55. #undef __OPENMP_AMDGCN__
  56.  
  57. #pragma omp end declare variant
  58. #endif
  59.  
  60. #ifdef __cplusplus
  61. } // extern "C"
  62. #endif
  63.  
  64. // Ensure we make `_ZdlPv`, aka. `operator delete(void*)` available without the
  65. // need to `include <new>` in C++ mode.
  66. #ifdef __cplusplus
  67.  
  68. // We require malloc/free.
  69. #include <cstdlib>
  70.  
  71. #pragma push_macro("OPENMP_NOEXCEPT")
  72. #if __cplusplus >= 201103L
  73. #define OPENMP_NOEXCEPT noexcept
  74. #else
  75. #define OPENMP_NOEXCEPT
  76. #endif
  77.  
  78. // Device overrides for non-placement new and delete.
  79. inline void *operator new(__SIZE_TYPE__ size) {
  80.   if (size == 0)
  81.     size = 1;
  82.   return ::malloc(size);
  83. }
  84.  
  85. inline void *operator new[](__SIZE_TYPE__ size) { return ::operator new(size); }
  86.  
  87. inline void operator delete(void *ptr)OPENMP_NOEXCEPT { ::free(ptr); }
  88.  
  89. inline void operator delete[](void *ptr) OPENMP_NOEXCEPT {
  90.   ::operator delete(ptr);
  91. }
  92.  
  93. // Sized delete, C++14 only.
  94. #if __cplusplus >= 201402L
  95. inline void operator delete(void *ptr, __SIZE_TYPE__ size)OPENMP_NOEXCEPT {
  96.   ::operator delete(ptr);
  97. }
  98. inline void operator delete[](void *ptr, __SIZE_TYPE__ size) OPENMP_NOEXCEPT {
  99.   ::operator delete(ptr);
  100. }
  101. #endif
  102.  
  103. #pragma pop_macro("OPENMP_NOEXCEPT")
  104. #endif
  105.  
  106. #endif
  107.