1 // Copyright (c) 2018 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef SOURCE_REDUCE_OPERAND_TO_CONST_REDUCTION_OPPORTUNITY_FINDER_H_ 16 #define SOURCE_REDUCE_OPERAND_TO_CONST_REDUCTION_OPPORTUNITY_FINDER_H_ 17 18 #include "source/reduce/reduction_opportunity_finder.h" 19 20 namespace spvtools { 21 namespace reduce { 22 23 // A finder for opportunities to replace id operands of instructions with ids of 24 // constants. This reduces the extent to which ids of non-constants are used, 25 // paving the way for instructions that generate them to be eliminated. 26 class OperandToConstReductionOpportunityFinder 27 : public ReductionOpportunityFinder { 28 public: 29 OperandToConstReductionOpportunityFinder() = default; 30 31 ~OperandToConstReductionOpportunityFinder() override = default; 32 33 std::string GetName() const final; 34 35 std::vector<std::unique_ptr<ReductionOpportunity>> GetAvailableOpportunities( 36 opt::IRContext* context, uint32_t target_function) const final; 37 38 private: 39 }; 40 41 } // namespace reduce 42 } // namespace spvtools 43 44 #endif // SOURCE_REDUCE_OPERAND_TO_CONST_REDUCTION_OPPORTUNITY_FINDER_H_ 45