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/*===-- complex --- OpenMP complex wrapper for target regions --------- c++ -===
*
* 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
*
*===-----------------------------------------------------------------------===
*/
#ifndef __CLANG_OPENMP_COMPLEX__
#define __CLANG_OPENMP_COMPLEX__
#ifndef _OPENMP
#error "This file is for OpenMP compilation only."
#endif
// We require std::math functions in the complex builtins below.
#include <cmath>
#ifdef __NVPTX__
#define __OPENMP_NVPTX__
#include <__clang_cuda_complex_builtins.h>
#undef __OPENMP_NVPTX__
#endif // __NVPTX__
#ifdef __AMDGCN__
#define __OPENMP_AMDGCN__
#include <__clang_cuda_complex_builtins.h>
#undef __OPENMP_AMDGCN__
#endif // __AMDGCN__
#endif
// Grab the host header too.
#include_next <complex>
// If we are compiling against libc++, the macro _LIBCPP_STD_VER should be set
// after including <cmath> above. Since the complex header we use is a
// simplified version of the libc++, we don't need it in this case. If we
// compile against libstdc++, or any other standard library, we will overload
// the (hopefully template) functions in the <complex> header with the ones we
// got from libc++ which decomposes math functions, like `std::sin`, into
// arithmetic and calls to non-complex functions, all of which we can then
// handle.
#ifndef _LIBCPP_STD_VER
#pragma omp begin declare variant match( \
device = {arch(amdgcn, nvptx, nvptx64)}, \
implementation = {extension(match_any, allow_templates)})
#include <complex_cmath.h>
#pragma omp end declare variant
#endif // _LIBCPP_STD_VER
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