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_LOAD_H_ 16 #define SOURCE_FUZZ_TRANSFORMATION_LOAD_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 TransformationLoad : public Transformation { 27 public: 28 explicit TransformationLoad(const protobufs::TransformationLoad& message); 29 30 TransformationLoad( 31 uint32_t fresh_id, uint32_t pointer_id, 32 const protobufs::InstructionDescriptor& instruction_to_insert_before); 33 34 // - |message_.fresh_id| must be fresh 35 // - |message_.pointer_id| must be the id of a pointer 36 // - The pointer must not be OpConstantNull or OpUndef 37 // - |message_.instruction_to_insert_before| must identify an instruction 38 // before which it is valid to insert an OpLoad, and where 39 // |message_.pointer_id| is available (according to dominance rules) 40 bool IsApplicable( 41 opt::IRContext* ir_context, 42 const TransformationContext& transformation_context) const override; 43 44 // Adds an instruction of the form: 45 // |message_.fresh_id| = OpLoad %type |message_.pointer_id| 46 // before the instruction identified by 47 // |message_.instruction_to_insert_before|, where %type is the pointer's 48 // pointee type. 49 void Apply(opt::IRContext* ir_context, 50 TransformationContext* transformation_context) const override; 51 52 std::unordered_set<uint32_t> GetFreshIds() const override; 53 54 protobufs::Transformation ToMessage() const override; 55 56 private: 57 protobufs::TransformationLoad message_; 58 }; 59 60 } // namespace fuzz 61 } // namespace spvtools 62 63 #endif // SOURCE_FUZZ_TRANSFORMATION_LOAD_H_ 64