1 // Copyright (c) 2021 Mostafa Ashraf 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_FUZZ_TRANSFORMATION_SWAP_FUNCTION_VARIABLES_H_ 16 #define SOURCE_FUZZ_TRANSFORMATION_SWAP_FUNCTION_VARIABLES_H_ 17 18 #include "source/fuzz/protobufs/spirvfuzz_protobufs.h" 19 #include "source/fuzz/transformation.h" 20 #include "source/fuzz/transformation_context.h" 21 #include "source/opt/ir_context.h" 22 23 namespace spvtools { 24 namespace fuzz { 25 26 // A transformation that swaps two variable declaration instructions that appear 27 // in the same function. 28 class TransformationSwapFunctionVariables : public Transformation { 29 public: 30 explicit TransformationSwapFunctionVariables( 31 protobufs::TransformationSwapFunctionVariables message); 32 33 TransformationSwapFunctionVariables(uint32_t result_id1, uint32_t result_id2); 34 35 // - |message_.result_id1| and |message_.result_id2| must be the ids of 36 // distinct OpVariable instructions appearing in the same function. 37 bool IsApplicable( 38 opt::IRContext* ir_context, 39 const TransformationContext& transformation_context) const override; 40 41 // Swaps two OpVariable instructions with result ids |message_.result_id1| 42 // and |message_.result_id2|. 43 void Apply(opt::IRContext* ir_context, 44 TransformationContext* transformation_context) const override; 45 46 protobufs::Transformation ToMessage() const override; 47 48 std::unordered_set<uint32_t> GetFreshIds() const override; 49 50 private: 51 protobufs::TransformationSwapFunctionVariables message_; 52 }; 53 54 } // namespace fuzz 55 } // namespace spvtools 56 57 #endif // SOURCE_FUZZ_TRANSFORMATION_SWAP_FUNCTION_VARIABLES_H_ 58