56 строки
2.1 KiB
C++
56 строки
2.1 KiB
C++
// Copyright (c) 2019 Google LLC
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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_add_no_contraction_decorations.h"
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#include "source/fuzz/transformation_add_no_contraction_decoration.h"
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namespace spvtools {
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namespace fuzz {
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FuzzerPassAddNoContractionDecorations::FuzzerPassAddNoContractionDecorations(
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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 FuzzerPassAddNoContractionDecorations::Apply() {
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// Consider every instruction in every block in every function.
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for (auto& function : *GetIRContext()->module()) {
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for (auto& block : function) {
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for (auto& inst : block) {
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// Restrict attention to arithmetic instructions (as defined in the
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// SPIR-V specification).
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if (TransformationAddNoContractionDecoration::IsArithmetic(
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inst.opcode())) {
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// Randomly choose whether to apply the NoContraction decoration to
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// this arithmetic instruction.
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if (GetFuzzerContext()->ChoosePercentage(
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GetFuzzerContext()
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->GetChanceOfAddingNoContractionDecoration())) {
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TransformationAddNoContractionDecoration transformation(
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inst.result_id());
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ApplyTransformation(transformation);
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}
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}
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}
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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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