1/*===-- complex --- OpenMP complex wrapper for target regions --------- c++ -=== 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_COMPLEX__ 11#define __CLANG_OPENMP_COMPLEX__ 12 13#ifndef _OPENMP 14#error "This file is for OpenMP compilation only." 15#endif 16 17// We require std::math functions in the complex builtins below. 18#include <cmath> 19 20#define __CUDA__ 21#define __OPENMP_NVPTX__ 22#include <__clang_cuda_complex_builtins.h> 23#undef __OPENMP_NVPTX__ 24#endif 25 26// Grab the host header too. 27#include_next <complex> 28 29 30#ifdef __cplusplus 31 32// If we are compiling against libc++, the macro _LIBCPP_STD_VER should be set 33// after including <cmath> above. Since the complex header we use is a 34// simplified version of the libc++, we don't need it in this case. If we 35// compile against libstdc++, or any other standard library, we will overload 36// the (hopefully template) functions in the <complex> header with the ones we 37// got from libc++ which decomposes math functions, like `std::sin`, into 38// arithmetic and calls to non-complex functions, all of which we can then 39// handle. 40#ifndef _LIBCPP_STD_VER 41 42#pragma omp begin declare variant match( \ 43 device = {arch(nvptx, nvptx64)}, \ 44 implementation = {extension(match_any, allow_templates)}) 45 46#include <complex_cmath.h> 47 48#pragma omp end declare variant 49 50#endif 51 52#endif 53