55 строки
2.2 KiB
C++
55 строки
2.2 KiB
C++
// Copyright (c) 2020 André Perez Maselco
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "source/fuzz/fuzzer_pass_toggle_access_chain_instruction.h"
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#include "source/fuzz/fuzzer_util.h"
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#include "source/fuzz/instruction_descriptor.h"
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#include "source/fuzz/transformation_toggle_access_chain_instruction.h"
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namespace spvtools {
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namespace fuzz {
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FuzzerPassToggleAccessChainInstruction::FuzzerPassToggleAccessChainInstruction(
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opt::IRContext* ir_context, TransformationContext* transformation_context,
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FuzzerContext* fuzzer_context,
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protobufs::TransformationSequence* transformations,
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bool ignore_inapplicable_transformations)
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: FuzzerPass(ir_context, transformation_context, fuzzer_context,
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transformations, ignore_inapplicable_transformations) {}
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void FuzzerPassToggleAccessChainInstruction::Apply() {
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auto context = GetIRContext();
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// Iterates over the module's instructions and checks whether it is
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// OpAccessChain or OpInBoundsAccessChain. In this case, the transformation is
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// probabilistically applied.
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context->module()->ForEachInst([this,
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context](opt::Instruction* instruction) {
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spv::Op opcode = instruction->opcode();
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if ((opcode == spv::Op::OpAccessChain ||
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opcode == spv::Op::OpInBoundsAccessChain) &&
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GetFuzzerContext()->ChoosePercentage(
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GetFuzzerContext()->GetChanceOfTogglingAccessChainInstruction())) {
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auto instructionDescriptor =
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MakeInstructionDescriptor(context, instruction);
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auto transformation =
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TransformationToggleAccessChainInstruction(instructionDescriptor);
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ApplyTransformation(transformation);
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}
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});
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}
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} // namespace fuzz
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} // namespace spvtools
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