wehub-resource-sync
80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
// Copyright (c) 2021 CINN Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "paddle/cinn/optim/lower_function_call_bind_vars.h"
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#include <string>
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#include <vector>
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#include "paddle/cinn/ir/ir_mutator.h"
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namespace cinn {
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namespace optim {
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namespace {
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struct LowerFunctionCallBindVarsMutator : public ir::IRMutator<> {
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LowerFunctionCallBindVarsMutator() = default;
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void operator()(ir::Module m) {
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m_ = m.As<ir::_Module_>();
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ir::IRMutator<>::Visit(m_);
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}
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private:
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void Visit(const ir::Call* op, Expr* expr) {
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auto* node = expr->As<ir::Call>();
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if (op->is_cinn_call()) {
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const std::string& target = op->name;
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auto it = std::find_if(
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m_->functions.begin(),
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m_->functions.end(),
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[&](const ir::LoweredFunc& x) { return x->name == target; });
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PADDLE_ENFORCE_NE(
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it,
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m_->functions.end(),
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::common::errors::NotFound("The called function [%s] does not exist.",
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target));
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std::vector<Expr> extra_var_args;
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for (auto& arg : (*it)->args) {
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if (arg.is_var()) {
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extra_var_args.push_back(arg.var_arg());
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}
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}
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// insert the extra var arguments to the beginning of the original call's
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// argument list.
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node->read_args.insert(std::begin(op->read_args),
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extra_var_args.begin(),
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extra_var_args.end());
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}
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ir::IRMutator<>::Visit(op, expr);
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}
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private:
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ir::_Module_* m_{};
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};
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} // namespace
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void LowerFunctionCallBindVars(ir::Module m) {
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LowerFunctionCallBindVarsMutator()(m);
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}
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} // namespace optim
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} // namespace cinn
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