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_UNDEF_REDUCTION_PASS_H_ 16 #define SOURCE_REDUCE_OPERAND_TO_UNDEF_REDUCTION_PASS_H_ 17 18 #include "source/reduce/reduction_pass.h" 19 20 namespace spvtools { 21 namespace reduce { 22 23 // A reduction pass for replacing id operands of instructions with ids of undef. 24 class OperandToUndefReductionPass : public ReductionPass { 25 public: 26 // Creates the reduction pass in the context of the given target environment 27 // |target_env| OperandToUndefReductionPass(const spv_target_env target_env)28 explicit OperandToUndefReductionPass(const spv_target_env target_env) 29 : ReductionPass(target_env) {} 30 31 ~OperandToUndefReductionPass() override = default; 32 33 std::string GetName() const final; 34 35 protected: 36 std::vector<std::unique_ptr<ReductionOpportunity>> GetAvailableOpportunities( 37 opt::IRContext* context) const final; 38 39 private: 40 }; 41 42 } // namespace reduce 43 } // namespace spvtools 44 45 #endif // SOURCE_REDUCE_OPERAND_TO_UNDEF_REDUCTION_PASS_H_ 46