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https://github.com/RPCSX/SPIRV-Tools.git
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d35a78db57
Fixes #4960 * Switches to using enum classes with an underlying type to avoid undefined behaviour
72 lines
2.8 KiB
C++
72 lines
2.8 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_make_vector_operations_dynamic.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_make_vector_operation_dynamic.h"
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namespace spvtools {
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namespace fuzz {
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FuzzerPassMakeVectorOperationsDynamic::FuzzerPassMakeVectorOperationsDynamic(
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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 FuzzerPassMakeVectorOperationsDynamic::Apply() {
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for (auto& function : *GetIRContext()->module()) {
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for (auto& block : function) {
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for (auto& instruction : block) {
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// Randomly decide whether to try applying the transformation.
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if (!GetFuzzerContext()->ChoosePercentage(
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GetFuzzerContext()
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->GetChanceOfMakingVectorOperationDynamic())) {
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continue;
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}
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// |instruction| must be a vector operation.
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if (!TransformationMakeVectorOperationDynamic::IsVectorOperation(
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GetIRContext(), &instruction)) {
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continue;
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}
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// Make sure |instruction| has only one indexing operand.
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assert(
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instruction.NumInOperands() ==
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(instruction.opcode() == spv::Op::OpCompositeExtract ? 2 : 3) &&
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"FuzzerPassMakeVectorOperationsDynamic: the composite "
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"instruction must have "
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"only one indexing operand.");
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// Applies the make vector operation dynamic transformation.
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ApplyTransformation(TransformationMakeVectorOperationDynamic(
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instruction.result_id(),
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FindOrCreateIntegerConstant(
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{instruction.GetSingleWordInOperand(
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instruction.opcode() == spv::Op::OpCompositeExtract ? 1
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: 2)},
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32, GetFuzzerContext()->ChooseEven(), false)));
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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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