1 // Copyright (c) 2019 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_GLOBAL_VARIABLE_H_ 16 #define SOURCE_FUZZ_TRANSFORMATION_ADD_GLOBAL_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 TransformationAddGlobalVariable : public Transformation { 27 public: 28 explicit TransformationAddGlobalVariable( 29 protobufs::TransformationAddGlobalVariable message); 30 31 TransformationAddGlobalVariable(uint32_t fresh_id, uint32_t type_id, 32 SpvStorageClass storage_class, 33 uint32_t initializer_id, 34 bool value_is_irrelevant); 35 36 // - |message_.fresh_id| must be fresh 37 // - |message_.type_id| must be the id of a pointer type with the same storage 38 // class as |message_.storage_class| 39 // - |message_.storage_class| must be Private or Workgroup 40 // - |message_.initializer_id| must be 0 if |message_.storage_class| is 41 // Workgroup, and otherwise may either be 0 or the id of a constant whose 42 // type is the pointee type of |message_.type_id| 43 bool IsApplicable( 44 opt::IRContext* ir_context, 45 const TransformationContext& transformation_context) const override; 46 47 // Adds a global variable with storage class |message_.storage_class| to the 48 // module, with type |message_.type_id| and either no initializer or 49 // |message_.initializer_id| as an initializer, depending on whether 50 // |message_.initializer_id| is 0. The global variable has result id 51 // |message_.fresh_id|. 52 // 53 // If |message_.value_is_irrelevant| holds, adds a corresponding fact to the 54 // fact manager in |transformation_context|. 55 void Apply(opt::IRContext* ir_context, 56 TransformationContext* transformation_context) const override; 57 58 std::unordered_set<uint32_t> GetFreshIds() const override; 59 60 protobufs::Transformation ToMessage() const override; 61 62 private: 63 protobufs::TransformationAddGlobalVariable message_; 64 }; 65 66 } // namespace fuzz 67 } // namespace spvtools 68 69 #endif // SOURCE_FUZZ_TRANSFORMATION_ADD_GLOBAL_VARIABLE_H_ 70