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_STORE_H_ 16 #define SOURCE_FUZZ_TRANSFORMATION_STORE_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 TransformationStore : public Transformation { 27 public: 28 explicit TransformationStore(protobufs::TransformationStore message); 29 30 TransformationStore( 31 uint32_t pointer_id, bool is_atomic, uint32_t memory_scope, 32 uint32_t memory_semantics, uint32_t value_id, 33 const protobufs::InstructionDescriptor& instruction_to_insert_before); 34 35 // - |message_.pointer_id| must be the id of a pointer 36 // - The pointer type must not have read-only storage class 37 // - The pointer must not be OpConstantNull or OpUndef 38 // - |message_.is_atomic| must be true if want to work with OpAtomicStore. 39 // - If |is_atomic| is true then |message_memory_scope_id| must be the id of 40 // an OpConstant 32 bit integer instruction with the value 41 // SpvScopeInvocation. 42 // - If |is_atomic| is true then |message_.memory_semantics_id| must be the id 43 // of an OpConstant 32 bit integer instruction with the values 44 // SpvMemorySemanticsWorkgroupMemoryMask or 45 // SpvMemorySemanticsUniformMemoryMask. 46 // - |message_.value_id| must be an instruction result id that has the same 47 // type as the pointee type of |message_.pointer_id| 48 // - |message_.instruction_to_insert_before| must identify an instruction 49 // before which it is valid to insert an OpStore, and where both 50 // |message_.pointer_id| and |message_.value_id| are available (according 51 // to dominance rules) 52 // - Either the insertion point must be in a dead block, or it must be known 53 // that the pointee value of |message_.pointer_id| is irrelevant 54 bool IsApplicable( 55 opt::IRContext* ir_context, 56 const TransformationContext& transformation_context) const override; 57 58 // Adds an instruction of the form: 59 // OpStore |pointer_id| |value_id| 60 // before the instruction identified by 61 // |message_.instruction_to_insert_before|. 62 void Apply(opt::IRContext* ir_context, 63 TransformationContext* transformation_context) const override; 64 65 std::unordered_set<uint32_t> GetFreshIds() const override; 66 67 protobufs::Transformation ToMessage() const override; 68 69 private: 70 protobufs::TransformationStore message_; 71 }; 72 73 } // namespace fuzz 74 } // namespace spvtools 75 76 #endif // SOURCE_FUZZ_TRANSFORMATION_STORE_H_ 77