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Fix compiling for CUDA with 2024.1 compiler #1630
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84 changes: 84 additions & 0 deletions
84
dpctl/tensor/libtensor/include/kernels/elementwise_functions/cabs_impl.hpp
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| //===------- cabs_impl.hpp - Implementation of cabs -------*-C++-*/===// | ||
| // | ||
| // Data Parallel Control (dpctl) | ||
| // | ||
| // Copyright 2020-2024 Intel Corporation | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
| /// | ||
| /// \file | ||
| /// This file defines an implementation of the complex absolute value. | ||
| //===----------------------------------------------------------------------===// | ||
|
|
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| #pragma once | ||
| #include <cmath> | ||
| #include <complex> | ||
| #include <limits> | ||
|
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| #include "sycl_complex.hpp" | ||
|
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| namespace dpctl | ||
| { | ||
| namespace tensor | ||
| { | ||
| namespace kernels | ||
| { | ||
| namespace detail | ||
| { | ||
|
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| template <typename realT> realT cabs(std::complex<realT> const &z) | ||
| { | ||
| // Special values for cabs( x + y * 1j): | ||
| // * If x is either +infinity or -infinity and y is any value | ||
| // (including NaN), the result is +infinity. | ||
| // * If x is any value (including NaN) and y is either +infinity or | ||
| // -infinity, the result is +infinity. | ||
| // * If x is either +0 or -0, the result is equal to abs(y). | ||
| // * If y is either +0 or -0, the result is equal to abs(x). | ||
| // * If x is NaN and y is a finite number, the result is NaN. | ||
| // * If x is a finite number and y is NaN, the result is NaN. | ||
| // * If x is NaN and y is NaN, the result is NaN. | ||
|
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| const realT x = std::real(z); | ||
| const realT y = std::imag(z); | ||
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| constexpr realT q_nan = std::numeric_limits<realT>::quiet_NaN(); | ||
| constexpr realT p_inf = std::numeric_limits<realT>::infinity(); | ||
|
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| if (std::isinf(x)) { | ||
| return p_inf; | ||
| } | ||
| else if (std::isinf(y)) { | ||
| return p_inf; | ||
| } | ||
| else if (std::isnan(x)) { | ||
| return q_nan; | ||
| } | ||
| else if (std::isnan(y)) { | ||
| return q_nan; | ||
| } | ||
| else { | ||
| #ifdef USE_SYCL_FOR_COMPLEX_TYPES | ||
| return exprm_ns::abs(exprm_ns::complex<realT>(z)); | ||
| #else | ||
| return std::hypot(std::real(z), std::imag(z)); | ||
| #endif | ||
| } | ||
| } | ||
|
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| } // namespace detail | ||
| } // namespace kernels | ||
| } // namespace tensor | ||
| } // namespace dpctl | ||
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