1 // Copyright (c) 2020 Vasyl Teliman 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_REPLACE_PARAMETER_WITH_GLOBAL_H_ 16 #define SOURCE_FUZZ_TRANSFORMATION_REPLACE_PARAMETER_WITH_GLOBAL_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 TransformationReplaceParameterWithGlobal : public Transformation { 27 public: 28 explicit TransformationReplaceParameterWithGlobal( 29 protobufs::TransformationReplaceParameterWithGlobal message); 30 31 TransformationReplaceParameterWithGlobal(uint32_t function_type_fresh_id, 32 uint32_t parameter_id, 33 uint32_t global_variable_fresh_id); 34 35 // - |function_type_fresh_id| is a fresh id. 36 // - |parameter_id| is the result id of the parameter to replace. 37 // - |global_variable_fresh_id| is a fresh id. 38 // - |function_type_fresh_id| is not equal to |global_variable_fresh_id|. 39 // - the function that contains |parameter_id| may not be an entry-point 40 // function. 41 bool IsApplicable( 42 opt::IRContext* ir_context, 43 const TransformationContext& transformation_context) const override; 44 45 // - Removes parameter with result id |parameter_id| from its function 46 // - Adds a global variable to store the value for the parameter 47 // - Add an OpStore instruction before each function call to 48 // store parameter's value into the variable 49 // - Adds OpLoad at the beginning of the function to load the 50 // value from the variable into the old parameter's id 51 void Apply(opt::IRContext* ir_context, 52 TransformationContext* transformation_context) const override; 53 54 std::unordered_set<uint32_t> GetFreshIds() const override; 55 56 protobufs::Transformation ToMessage() const override; 57 58 // Returns true if the type of the parameter is supported by this 59 // transformation. 60 static bool IsParameterTypeSupported(opt::IRContext* ir_context, 61 uint32_t param_type_id); 62 63 private: 64 protobufs::TransformationReplaceParameterWithGlobal message_; 65 }; 66 67 } // namespace fuzz 68 } // namespace spvtools 69 70 #endif // SOURCE_FUZZ_TRANSFORMATION_REPLACE_PARAMETER_WITH_GLOBAL_H_ 71