// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved. // // 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. #pragma once namespace phi { namespace funcs { template struct IsNanFunctor { HOSTDEVICE bool operator()(const T& a) const { #if defined(__CUDACC__) || defined(__HIPCC__) return ::isnan(a); #else return std::isnan(a); #endif } }; template struct IsNanFunctor::value>::type> { HOSTDEVICE bool operator()(const T& a) const { return false; } }; // isnan is defined in namespace std in float16.h, but // on rocm platform, it still got: // "error: call to 'isnan' is ambiguous". // So use phi::dtype::isnan here. template <> struct IsNanFunctor { HOSTDEVICE bool operator()(const phi::dtype::float16& a) const { return phi::dtype::isnan(a); } }; template struct IsInfFunctor { HOSTDEVICE bool operator()(const T& a) const { #if defined(__CUDACC__) || defined(__HIPCC__) return ::isinf(a); #else return std::isinf(a); #endif } }; template struct IsInfFunctor::value>::type> { HOSTDEVICE bool operator()(const T& a) const { return false; } }; template <> struct IsInfFunctor { HOSTDEVICE bool operator()(const phi::dtype::float16& a) const { return phi::dtype::isinf(a); } }; template struct IsFiniteFunctor { HOSTDEVICE bool operator()(const T& a) const { #if defined(__CUDACC__) || defined(__HIPCC__) return ::isfinite(a); #else return std::isfinite(a); #endif } }; template struct IsFiniteFunctor< T, typename std::enable_if::value>::type> { HOSTDEVICE bool operator()(const T& a) const { return true; } }; template <> struct IsFiniteFunctor { HOSTDEVICE bool operator()(const phi::dtype::float16& a) const { return phi::dtype::isfinite(a); } }; } // namespace funcs } // namespace phi