1*e038c9c4Sjoerg/*===-- complex --- OpenMP complex wrapper for target regions --------- c++ -=== 2*e038c9c4Sjoerg * 3*e038c9c4Sjoerg * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*e038c9c4Sjoerg * See https://llvm.org/LICENSE.txt for license information. 5*e038c9c4Sjoerg * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*e038c9c4Sjoerg * 7*e038c9c4Sjoerg *===-----------------------------------------------------------------------=== 8*e038c9c4Sjoerg */ 9*e038c9c4Sjoerg 10*e038c9c4Sjoerg#ifndef __CLANG_OPENMP_COMPLEX__ 11*e038c9c4Sjoerg#define __CLANG_OPENMP_COMPLEX__ 12*e038c9c4Sjoerg 13*e038c9c4Sjoerg#ifndef _OPENMP 14*e038c9c4Sjoerg#error "This file is for OpenMP compilation only." 15*e038c9c4Sjoerg#endif 16*e038c9c4Sjoerg 17*e038c9c4Sjoerg// We require std::math functions in the complex builtins below. 18*e038c9c4Sjoerg#include <cmath> 19*e038c9c4Sjoerg 20*e038c9c4Sjoerg#define __CUDA__ 21*e038c9c4Sjoerg#define __OPENMP_NVPTX__ 22*e038c9c4Sjoerg#include <__clang_cuda_complex_builtins.h> 23*e038c9c4Sjoerg#undef __OPENMP_NVPTX__ 24*e038c9c4Sjoerg#endif 25*e038c9c4Sjoerg 26*e038c9c4Sjoerg// Grab the host header too. 27*e038c9c4Sjoerg#include_next <complex> 28*e038c9c4Sjoerg 29*e038c9c4Sjoerg 30*e038c9c4Sjoerg#ifdef __cplusplus 31*e038c9c4Sjoerg 32*e038c9c4Sjoerg// If we are compiling against libc++, the macro _LIBCPP_STD_VER should be set 33*e038c9c4Sjoerg// after including <cmath> above. Since the complex header we use is a 34*e038c9c4Sjoerg// simplified version of the libc++, we don't need it in this case. If we 35*e038c9c4Sjoerg// compile against libstdc++, or any other standard library, we will overload 36*e038c9c4Sjoerg// the (hopefully template) functions in the <complex> header with the ones we 37*e038c9c4Sjoerg// got from libc++ which decomposes math functions, like `std::sin`, into 38*e038c9c4Sjoerg// arithmetic and calls to non-complex functions, all of which we can then 39*e038c9c4Sjoerg// handle. 40*e038c9c4Sjoerg#ifndef _LIBCPP_STD_VER 41*e038c9c4Sjoerg 42*e038c9c4Sjoerg#pragma omp begin declare variant match( \ 43*e038c9c4Sjoerg device = {arch(nvptx, nvptx64)}, \ 44*e038c9c4Sjoerg implementation = {extension(match_any, allow_templates)}) 45*e038c9c4Sjoerg 46*e038c9c4Sjoerg#include <complex_cmath.h> 47*e038c9c4Sjoerg 48*e038c9c4Sjoerg#pragma omp end declare variant 49*e038c9c4Sjoerg 50*e038c9c4Sjoerg#endif 51*e038c9c4Sjoerg 52*e038c9c4Sjoerg#endif 53