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https://github.com/KhronosGroup/SPIRV-Tools
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1020e394cb
Addresses a comment mentioned in #4236. Simplifies implementation of GetFunctionIterator().
53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
// Copyright (c) 2021 Shiyu Liu
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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_swap_functions.h"
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#include "source/fuzz/fuzzer_context.h"
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#include "source/fuzz/transformation_swap_two_functions.h"
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namespace spvtools {
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namespace fuzz {
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FuzzerPassSwapFunctions::FuzzerPassSwapFunctions(
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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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: FuzzerPass(ir_context, transformation_context, fuzzer_context,
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transformations) {}
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void FuzzerPassSwapFunctions::Apply() {
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// Collect all function ids in a module.
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std::vector<uint32_t> function_ids;
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for (auto& function : *GetIRContext()->module()) {
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function_ids.emplace_back(function.result_id());
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}
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// Iterate through every combination of id i & j where i!=j.
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for (size_t i = 0; i < function_ids.size(); ++i) {
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for (size_t j = i + 1; j < function_ids.size(); ++j) {
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// Perform function swap randomly.
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if (!GetFuzzerContext()->ChoosePercentage(
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GetFuzzerContext()->GetChanceOfSwappingFunctions())) {
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continue;
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}
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TransformationSwapTwoFunctions transformation(function_ids[i],
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function_ids[j]);
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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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