mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-10-19 03:20:14 +00:00
b7056e7e03
Given an instruction (that may use an OpPhi result from the same block as an input operand), try to clone the instruction into each predecessor block, replacing the input operand with the corresponding OpPhi input operand in each case, if necessary. Fixes #3458.
59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
// Copyright (c) 2020 Vasyl Teliman
|
|
//
|
|
// 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_propagate_instructions_up.h"
|
|
|
|
#include "source/fuzz/fuzzer_context.h"
|
|
#include "source/fuzz/fuzzer_util.h"
|
|
#include "source/fuzz/instruction_descriptor.h"
|
|
#include "source/fuzz/transformation_propagate_instruction_up.h"
|
|
|
|
namespace spvtools {
|
|
namespace fuzz {
|
|
|
|
FuzzerPassPropagateInstructionsUp::FuzzerPassPropagateInstructionsUp(
|
|
opt::IRContext* ir_context, TransformationContext* transformation_context,
|
|
FuzzerContext* fuzzer_context,
|
|
protobufs::TransformationSequence* transformations)
|
|
: FuzzerPass(ir_context, transformation_context, fuzzer_context,
|
|
transformations) {}
|
|
|
|
FuzzerPassPropagateInstructionsUp::~FuzzerPassPropagateInstructionsUp() =
|
|
default;
|
|
|
|
void FuzzerPassPropagateInstructionsUp::Apply() {
|
|
for (const auto& function : *GetIRContext()->module()) {
|
|
for (const auto& block : function) {
|
|
if (!GetFuzzerContext()->ChoosePercentage(
|
|
GetFuzzerContext()->GetChanceOfPropagatingInstructionsUp())) {
|
|
continue;
|
|
}
|
|
|
|
if (TransformationPropagateInstructionUp::IsApplicableToBlock(
|
|
GetIRContext(), block.id())) {
|
|
std::map<uint32_t, uint32_t> fresh_ids;
|
|
for (auto id : GetIRContext()->cfg()->preds(block.id())) {
|
|
fresh_ids[id] = GetFuzzerContext()->GetFreshId();
|
|
}
|
|
|
|
ApplyTransformation(
|
|
TransformationPropagateInstructionUp(block.id(), fresh_ids));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace fuzz
|
|
} // namespace spvtools
|