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// Copyright (c) 2019 Google LLC
//
// 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.
#ifndef SOURCE_REDUCE_REMOVE_FUNCTION_REDUCTION_OPPORTUNITY_H_
#define SOURCE_REDUCE_REMOVE_FUNCTION_REDUCTION_OPPORTUNITY_H_
#include "source/opt/function.h"
#include "source/reduce/reduction_opportunity.h"
namespace spvtools {
namespace reduce {
// An opportunity to remove an unreferenced function.
class RemoveFunctionReductionOpportunity : public ReductionOpportunity {
public:
// Creates an opportunity to remove |function| from the module represented by
// |context|.
RemoveFunctionReductionOpportunity(opt::IRContext* context,
opt::Function* function)
: context_(context), function_(function) {}
bool PreconditionHolds() override;
protected:
void Apply() override;
private:
// The IR context for the module under analysis.
opt::IRContext* context_;
// The function that can be removed.
opt::Function* function_;
};
} // namespace reduce
} // namespace spvtools
#endif // SOURCE_REDUCE_REMOVE_FUNCTION_REDUCTION_OPPORTUNITY_H_
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