Program Listing for File elementwise.cc
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// Copyright (c) 2021 CINN 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.
#include "cinn/frontend/decomposer_registry.h"
#include "cinn/frontend/syntax.h"
namespace cinn {
namespace frontend {
namespace decomposer {
void sum(const Instruction& instr, const DecomposerContext& context) {
CHECK_GT(instr->inputs.size(), 0UL) << "At least 1 input tensor for " << instr->op_type;
CHECK_EQ(instr->outputs.size(), 1UL) << "1 output tensor for " << instr->op_type;
auto inputs = instr->inputs;
auto output = instr->outputs[0];
auto* builder = context.builder();
auto sum = builder->Identity(inputs[0]);
for (size_t i = 1; i < inputs.size(); ++i) {
sum = builder->Add(sum, inputs[i]);
}
// map the the output of decomposed operator to the original.
context.MapOutToOrigin(sum, output);
}
} // namespace decomposer
} // namespace frontend
} // namespace cinn
CINN_REGISTER_HELPER(elementwise_decomposers) {
CINN_DECOMPOSER_REGISTER(sum, cinn::frontend::decomposer::sum);
return true;
}