| // Copyright (c) 2021 Shiyu Liu |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "source/fuzz/transformation_swap_two_functions.h" |
| |
| #include "source/fuzz/fuzzer_util.h" |
| #include "source/opt/function.h" |
| #include "source/opt/module.h" |
| |
| namespace spvtools { |
| namespace fuzz { |
| |
| TransformationSwapTwoFunctions::TransformationSwapTwoFunctions( |
| protobufs::TransformationSwapTwoFunctions message) |
| : message_(std::move(message)) {} |
| |
| TransformationSwapTwoFunctions::TransformationSwapTwoFunctions(uint32_t id1, |
| uint32_t id2) { |
| assert(id1 != id2 && "The two function ids cannot be the same."); |
| message_.set_function_id1(id1); |
| message_.set_function_id2(id2); |
| } |
| |
| bool TransformationSwapTwoFunctions::IsApplicable( |
| opt::IRContext* ir_context, const TransformationContext& /*unused*/) const { |
| auto func1_ptr = ir_context->GetFunction(message_.function_id1()); |
| auto func2_ptr = ir_context->GetFunction(message_.function_id2()); |
| return func1_ptr != nullptr && func2_ptr != nullptr; |
| } |
| |
| void TransformationSwapTwoFunctions::Apply( |
| opt::IRContext* ir_context, TransformationContext* /*unused*/) const { |
| opt::Module::iterator func1_it = |
| fuzzerutil::GetFunctionIterator(ir_context, message_.function_id1()); |
| opt::Module::iterator func2_it = |
| fuzzerutil::GetFunctionIterator(ir_context, message_.function_id2()); |
| |
| assert(func1_it != ir_context->module()->end() && |
| "Could not find function 1."); |
| assert(func2_it != ir_context->module()->end() && |
| "Could not find function 2."); |
| |
| // Two function pointers are all set, swap the two functions within the |
| // module. |
| std::iter_swap(func1_it.Get(), func2_it.Get()); |
| } |
| |
| protobufs::Transformation TransformationSwapTwoFunctions::ToMessage() const { |
| protobufs::Transformation result; |
| *result.mutable_swap_two_functions() = message_; |
| return result; |
| } |
| |
| std::unordered_set<uint32_t> TransformationSwapTwoFunctions::GetFreshIds() |
| const { |
| return std::unordered_set<uint32_t>(); |
| } |
| |
| } // namespace fuzz |
| } // namespace spvtools |