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/**
* \file dnn/src/common/powc.cpp
* MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
*
* Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*/
#include "megdnn/oprs/general.h"
#include <cmath>
#include "src/common/utils.h"
using namespace megdnn;
void PowC::exec(_megdnn_tensor_in src, _megdnn_tensor_out dst) {
megdnn_assert(
src.layout.dtype == dst.layout.dtype &&
src.layout.dtype.category() == DTypeCategory::FLOAT &&
src.layout.eq_shape(dst.layout),
"invalid layout: %s vs %s", src.layout.to_string().c_str(),
dst.layout.to_string().c_str());
int iv, *ivp = nullptr;
float fv, *fvp = nullptr;
float p = param().exp;
int pi = static_cast<int>(std::round(p));
if (std::abs(static_cast<float>(pi) - p) < std::numeric_limits<float>::epsilon()) {
iv = pi;
ivp = &iv;
} else {
fv = p;
fvp = &fv;
}
do_exec(src, dst, fvp, ivp);
}
// vim: syntax=cpp.doxygen