53 lines
1.6 KiB
Plaintext
53 lines
1.6 KiB
Plaintext
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/*===-- complex --- OpenMP complex wrapper for target regions --------- c++ -===
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*
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* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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* See https://llvm.org/LICENSE.txt for license information.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*
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*===-----------------------------------------------------------------------===
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*/
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#ifndef __CLANG_OPENMP_COMPLEX__
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#define __CLANG_OPENMP_COMPLEX__
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#ifndef _OPENMP
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#error "This file is for OpenMP compilation only."
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#endif
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// We require std::math functions in the complex builtins below.
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#include <cmath>
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#define __CUDA__
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#define __OPENMP_NVPTX__
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#include <__clang_cuda_complex_builtins.h>
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#undef __OPENMP_NVPTX__
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#endif
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// Grab the host header too.
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#include_next <complex>
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#ifdef __cplusplus
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// If we are compiling against libc++, the macro _LIBCPP_STD_VER should be set
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// after including <cmath> above. Since the complex header we use is a
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// simplified version of the libc++, we don't need it in this case. If we
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// compile against libstdc++, or any other standard library, we will overload
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// the (hopefully template) functions in the <complex> header with the ones we
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// got from libc++ which decomposes math functions, like `std::sin`, into
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// arithmetic and calls to non-complex functions, all of which we can then
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// handle.
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#ifndef _LIBCPP_STD_VER
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#pragma omp begin declare variant match( \
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device = {arch(nvptx, nvptx64)}, \
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implementation = {extension(match_any, allow_templates)})
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#include <complex_cmath.h>
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#pragma omp end declare variant
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#endif
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#endif
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