1 // Copyright (c) 2020 Vasyl Teliman 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_CONDITIONAL_BRANCH_OPERANDS_H_ 16 #define SOURCE_FUZZ_TRANSFORMATION_SWAP_CONDITIONAL_BRANCH_OPERANDS_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 class TransformationSwapConditionalBranchOperands : public Transformation { 27 public: 28 explicit TransformationSwapConditionalBranchOperands( 29 const protobufs::TransformationSwapConditionalBranchOperands& message); 30 31 TransformationSwapConditionalBranchOperands( 32 const protobufs::InstructionDescriptor& instruction_descriptor, 33 uint32_t fresh_id); 34 35 // - |message_.instruction_descriptor| must be a valid descriptor of some 36 // OpBranchConditional instruction in the module. 37 // - |message_.fresh_id| must be a fresh id. 38 bool IsApplicable( 39 opt::IRContext* ir_context, 40 const TransformationContext& transformation_context) const override; 41 42 // Inserts |%fresh_id = OpLogicalNot %bool_type_id %cond_id| before 43 // |OpBranchConditional %cond_id %branch_a %branch_b [%weight_a %weight_b]|. 44 // Replaces %cond_id with %fresh_id and swaps %branch_* and %weight_* 45 // operands. 46 void Apply(opt::IRContext* ir_context, 47 TransformationContext* transformation_context) const override; 48 49 std::unordered_set<uint32_t> GetFreshIds() const override; 50 51 protobufs::Transformation ToMessage() const override; 52 53 private: 54 protobufs::TransformationSwapConditionalBranchOperands message_; 55 }; 56 57 } // namespace fuzz 58 } // namespace spvtools 59 60 #endif // SOURCE_FUZZ_TRANSFORMATION_SWAP_CONDITIONAL_BRANCH_OPERANDS_H_ 61