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(protobufs::TransformationLoad message); 29 30 TransformationLoad( 31 uint32_t fresh_id, uint32_t pointer_id, bool is_atomic, 32 uint32_t memory_scope, uint32_t memory_semantics, 33 const protobufs::InstructionDescriptor& instruction_to_insert_before); 34 35 // - |message_.fresh_id| must be fresh 36 // - |message_.pointer_id| must be the id of a pointer 37 // - |message_.is_atomic| must be true if want to work with OpAtomicLoad 38 // - If |is_atomic| is true then |message_memory_scope_id| must be the id of 39 // an OpConstant 32 bit integer instruction with the value 40 // spv::Scope::Invocation. 41 // - If |is_atomic| is true then |message_.memory_semantics_id| must be the id 42 // of an OpConstant 32 bit integer instruction with the values 43 // SpvMemorySemanticsWorkgroupMemoryMask or 44 // SpvMemorySemanticsUniformMemoryMask. 45 // - The pointer must not be OpConstantNull or OpUndef 46 // - |message_.instruction_to_insert_before| must identify an instruction 47 // before which it is valid to insert an OpLoad, and where 48 // |message_.pointer_id| is available (according to dominance rules) 49 bool IsApplicable( 50 opt::IRContext* ir_context, 51 const TransformationContext& transformation_context) const override; 52 53 // Adds an instruction of the form: 54 // |message_.fresh_id| = OpLoad %type |message_.pointer_id| 55 // before the instruction identified by 56 // |message_.instruction_to_insert_before|, where %type is the pointer's 57 // pointee type. 58 void Apply(opt::IRContext* ir_context, 59 TransformationContext* transformation_context) const override; 60 61 std::unordered_set<uint32_t> GetFreshIds() const override; 62 63 protobufs::Transformation ToMessage() const override; 64 65 private: 66 protobufs::TransformationLoad message_; 67 }; 68 69 } // namespace fuzz 70 } // namespace spvtools 71 72 #endif // SOURCE_FUZZ_TRANSFORMATION_LOAD_H_ 73