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#ifdef __NVPTX__
21#define __OPENMP_NVPTX__
22#include <__clang_cuda_complex_builtins.h>
23#undef __OPENMP_NVPTX__
24#endif // __NVPTX__
25
26#ifdef __AMDGCN__
27#define __OPENMP_AMDGCN__
28#include <__clang_cuda_complex_builtins.h>
29#undef __OPENMP_AMDGCN__
30#endif // __AMDGCN__
31
32#ifdef __SPIRV__
33#define __OPENMP_SPIRV__
34#include <__clang_cuda_complex_builtins.h>
35#undef __OPENMP_SPIRV__
36#endif // __SPIRV__
37
38#endif
39
40// Grab the host header too.
41#include_next <complex>
42
43// If we are compiling against libc++, the macro _LIBCPP_STD_VER should be set
44// after including <cmath> above. Since the complex header we use is a
45// simplified version of the libc++, we don't need it in this case. If we
46// compile against libstdc++, or any other standard library, we will overload
47// the (hopefully template) functions in the <complex> header with the ones we
48// got from libc++ which decomposes math functions, like `std::sin`, into
49// arithmetic and calls to non-complex functions, all of which we can then
50// handle.
51#ifndef _LIBCPP_STD_VER
52
53#pragma omp begin declare variant match( \
54 device = {arch(amdgcn, nvptx, nvptx64, spirv64)}, \
55 implementation = {extension(match_any, allow_templates)})
56
57#include <complex_cmath.h>
58
59#pragma omp end declare variant
60
61#endif // _LIBCPP_STD_VER