mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-26 05:10:05 +00:00
c0833ce620
Subclasses of FuzzerPass no longer needlessly override the default destructor of FuzzerPass.
47 lines
1.8 KiB
C++
47 lines
1.8 KiB
C++
// Copyright (c) 2020 André Perez Maselco
|
|
//
|
|
// 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/fuzzer_pass_adjust_branch_weights.h"
|
|
|
|
#include "source/fuzz/fuzzer_util.h"
|
|
#include "source/fuzz/instruction_descriptor.h"
|
|
#include "source/fuzz/transformation_adjust_branch_weights.h"
|
|
|
|
namespace spvtools {
|
|
namespace fuzz {
|
|
|
|
FuzzerPassAdjustBranchWeights::FuzzerPassAdjustBranchWeights(
|
|
opt::IRContext* ir_context, TransformationContext* transformation_context,
|
|
FuzzerContext* fuzzer_context,
|
|
protobufs::TransformationSequence* transformations)
|
|
: FuzzerPass(ir_context, transformation_context, fuzzer_context,
|
|
transformations) {}
|
|
|
|
void FuzzerPassAdjustBranchWeights::Apply() {
|
|
// For all OpBranchConditional instructions,
|
|
// randomly applies the transformation.
|
|
GetIRContext()->module()->ForEachInst([this](opt::Instruction* instruction) {
|
|
if (instruction->opcode() == SpvOpBranchConditional &&
|
|
GetFuzzerContext()->ChoosePercentage(
|
|
GetFuzzerContext()->GetChanceOfAdjustingBranchWeights())) {
|
|
ApplyTransformation(TransformationAdjustBranchWeights(
|
|
MakeInstructionDescriptor(GetIRContext(), instruction),
|
|
GetFuzzerContext()->GetRandomBranchWeights()));
|
|
}
|
|
});
|
|
}
|
|
|
|
} // namespace fuzz
|
|
} // namespace spvtools
|