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_FUNCTION_CALL_H_ 16 #define SOURCE_FUZZ_TRANSFORMATION_FUNCTION_CALL_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 TransformationFunctionCall : public Transformation { 27 public: 28 explicit TransformationFunctionCall( 29 protobufs::TransformationFunctionCall message); 30 31 TransformationFunctionCall( 32 uint32_t fresh_id, uint32_t callee_id, 33 const std::vector<uint32_t>& argument_id, 34 const protobufs::InstructionDescriptor& instruction_to_insert_before); 35 36 // - |message_.fresh_id| must be fresh 37 // - |message_.instruction_to_insert_before| must identify an instruction 38 // before which an OpFunctionCall can be legitimately inserted 39 // - |message_.function_id| must be the id of a function, and calling the 40 // function before the identified instruction must not introduce recursion 41 // - |message_.arg_id| must provide suitable arguments for the function call 42 // (they must have the right types and be available according to dominance 43 // rules) 44 // - If the insertion point is not in a dead block then |message_function_id| 45 // must refer to a livesafe function, and every pointer argument in 46 // |message_.arg_id| must refer to an arbitrary-valued variable 47 bool IsApplicable( 48 opt::IRContext* ir_context, 49 const TransformationContext& transformation_context) const override; 50 51 // Adds an instruction of the form: 52 // |fresh_id| = OpFunctionCall %type |callee_id| |arg_id...| 53 // before |instruction_to_insert_before|, where %type is the return type of 54 // |callee_id|. 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::TransformationFunctionCall message_; 64 }; 65 66 } // namespace fuzz 67 } // namespace spvtools 68 69 #endif // SOURCE_FUZZ_TRANSFORMATION_FUNCTION_CALL_H_ 70