Logan Chien | 55afb0a | 2018-10-15 10:42:14 +0800 | [diff] [blame] | 1 | /*===---- complex - CUDA wrapper for <complex> ------------------------------=== |
| 2 | * |
| 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 4 | * of this software and associated documentation files (the "Software"), to deal |
| 5 | * in the Software without restriction, including without limitation the rights |
| 6 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 7 | * copies of the Software, and to permit persons to whom the Software is |
| 8 | * furnished to do so, subject to the following conditions: |
| 9 | * |
| 10 | * The above copyright notice and this permission notice shall be included in |
| 11 | * all copies or substantial portions of the Software. |
| 12 | * |
| 13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 14 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 15 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 16 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 17 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 18 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 19 | * THE SOFTWARE. |
| 20 | * |
| 21 | *===-----------------------------------------------------------------------=== |
| 22 | */ |
| 23 | |
| 24 | #ifndef __CLANG_CUDA_WRAPPERS_COMPLEX |
| 25 | #define __CLANG_CUDA_WRAPPERS_COMPLEX |
| 26 | |
| 27 | // Wrapper around <complex> that forces its functions to be __host__ |
| 28 | // __device__. |
| 29 | |
| 30 | // First, include host-only headers we think are likely to be included by |
| 31 | // <complex>, so that the pragma below only applies to <complex> itself. |
| 32 | #if __cplusplus >= 201103L |
| 33 | #include <type_traits> |
| 34 | #endif |
| 35 | #include <stdexcept> |
| 36 | #include <cmath> |
| 37 | #include <sstream> |
| 38 | |
| 39 | // Next, include our <algorithm> wrapper, to ensure that device overloads of |
| 40 | // std::min/max are available. |
| 41 | #include <algorithm> |
| 42 | |
| 43 | #pragma clang force_cuda_host_device begin |
| 44 | |
| 45 | // When compiling for device, ask libstdc++ to use its own implements of |
| 46 | // complex functions, rather than calling builtins (which resolve to library |
| 47 | // functions that don't exist when compiling CUDA device code). |
| 48 | // |
| 49 | // This is a little dicey, because it causes libstdc++ to define a different |
| 50 | // set of overloads on host and device. |
| 51 | // |
| 52 | // // Present only when compiling for host. |
| 53 | // __host__ __device__ void complex<float> sin(const complex<float>& x) { |
| 54 | // return __builtin_csinf(x); |
| 55 | // } |
| 56 | // |
| 57 | // // Present when compiling for host and for device. |
| 58 | // template <typename T> |
| 59 | // void __host__ __device__ complex<T> sin(const complex<T>& x) { |
| 60 | // return complex<T>(sin(x.real()) * cosh(x.imag()), |
| 61 | // cos(x.real()), sinh(x.imag())); |
| 62 | // } |
| 63 | // |
| 64 | // This is safe because when compiling for device, all function calls in |
| 65 | // __host__ code to sin() will still resolve to *something*, even if they don't |
| 66 | // resolve to the same function as they resolve to when compiling for host. We |
| 67 | // don't care that they don't resolve to the right function because we won't |
| 68 | // codegen this host code when compiling for device. |
| 69 | |
| 70 | #pragma push_macro("_GLIBCXX_USE_C99_COMPLEX") |
| 71 | #pragma push_macro("_GLIBCXX_USE_C99_COMPLEX_TR1") |
| 72 | #define _GLIBCXX_USE_C99_COMPLEX 0 |
| 73 | #define _GLIBCXX_USE_C99_COMPLEX_TR1 0 |
| 74 | |
Pirama Arumuga Nainar | 7e1f839 | 2021-08-16 17:30:48 -0700 | [diff] [blame^] | 75 | // Work around a compatibility issue with libstdc++ 11.1.0 |
| 76 | // https://bugs.llvm.org/show_bug.cgi?id=50383 |
| 77 | #pragma push_macro("__failed_assertion") |
| 78 | #if _GLIBCXX_RELEASE == 11 |
| 79 | #define __failed_assertion __cuda_failed_assertion |
| 80 | #endif |
| 81 | |
Logan Chien | 55afb0a | 2018-10-15 10:42:14 +0800 | [diff] [blame] | 82 | #include_next <complex> |
| 83 | |
Pirama Arumuga Nainar | 7e1f839 | 2021-08-16 17:30:48 -0700 | [diff] [blame^] | 84 | #pragma pop_macro("__failed_assertion") |
Logan Chien | 55afb0a | 2018-10-15 10:42:14 +0800 | [diff] [blame] | 85 | #pragma pop_macro("_GLIBCXX_USE_C99_COMPLEX_TR1") |
| 86 | #pragma pop_macro("_GLIBCXX_USE_C99_COMPLEX") |
| 87 | |
| 88 | #pragma clang force_cuda_host_device end |
| 89 | |
| 90 | #endif // include guard |