1 // Copyright (c) 2020 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_FUZZ_TRANSFORMATION_ADD_LOCAL_VARIABLE_H_ 16 #define SOURCE_FUZZ_TRANSFORMATION_ADD_LOCAL_VARIABLE_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 TransformationAddLocalVariable : public Transformation { 27 public: 28 explicit TransformationAddLocalVariable( 29 const protobufs::TransformationAddLocalVariable& message); 30 31 TransformationAddLocalVariable(uint32_t fresh_id, uint32_t type_id, 32 uint32_t function_id, uint32_t initializer_id, 33 bool value_is_irrelevant); 34 35 // - |message_.fresh_id| must not be used by the module 36 // - |message_.type_id| must be the id of a pointer type with Function 37 // storage class 38 // - |message_.initializer_id| must be the id of a constant with the same 39 // type as the pointer's pointee type 40 // - |message_.function_id| must be the id of a function 41 bool IsApplicable( 42 opt::IRContext* ir_context, 43 const TransformationContext& transformation_context) const override; 44 45 // Adds an instruction to the start of |message_.function_id|, of the form: 46 // |message_.fresh_id| = OpVariable |message_.type_id| Function 47 // |message_.initializer_id| 48 // If |message_.value_is_irrelevant| holds, adds a corresponding fact to the 49 // fact manager in |transformation_context|. 50 void Apply(opt::IRContext* ir_context, 51 TransformationContext* transformation_context) const override; 52 53 std::unordered_set<uint32_t> GetFreshIds() const override; 54 55 protobufs::Transformation ToMessage() const override; 56 57 private: 58 protobufs::TransformationAddLocalVariable message_; 59 }; 60 61 } // namespace fuzz 62 } // namespace spvtools 63 64 #endif // SOURCE_FUZZ_TRANSFORMATION_ADD_LOCAL_VARIABLE_H_ 65