mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-12-27 10:20:14 +00:00
dfcb5a1e10
Introduced abstract class for transformations, and refactored all transformations to inherit from this abstract class.
88 lines
2.9 KiB
C++
88 lines
2.9 KiB
C++
// Copyright (c) 2019 Google LLC
|
|
//
|
|
// 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/transformation_add_constant_scalar.h"
|
|
|
|
#include "source/fuzz/fuzzer_util.h"
|
|
|
|
namespace spvtools {
|
|
namespace fuzz {
|
|
|
|
TransformationAddConstantScalar::TransformationAddConstantScalar(
|
|
const spvtools::fuzz::protobufs::TransformationAddConstantScalar& message)
|
|
: message_(message) {}
|
|
|
|
TransformationAddConstantScalar::TransformationAddConstantScalar(
|
|
uint32_t fresh_id, uint32_t type_id, std::vector<uint32_t> words) {
|
|
message_.set_fresh_id(fresh_id);
|
|
message_.set_type_id(type_id);
|
|
for (auto word : words) {
|
|
message_.add_word(word);
|
|
}
|
|
}
|
|
|
|
bool TransformationAddConstantScalar::IsApplicable(
|
|
opt::IRContext* context,
|
|
const spvtools::fuzz::FactManager& /*unused*/) const {
|
|
// The id needs to be fresh.
|
|
if (!fuzzerutil::IsFreshId(context, message_.fresh_id())) {
|
|
return false;
|
|
}
|
|
// The type id for the scalar must exist and be a type.
|
|
auto type = context->get_type_mgr()->GetType(message_.type_id());
|
|
if (!type) {
|
|
return false;
|
|
}
|
|
uint32_t width;
|
|
if (type->AsFloat()) {
|
|
width = type->AsFloat()->width();
|
|
} else if (type->AsInteger()) {
|
|
width = type->AsInteger()->width();
|
|
} else {
|
|
return false;
|
|
}
|
|
// The number of words is the integer floor of the width.
|
|
auto words = (width + 32 - 1) / 32;
|
|
|
|
// The number of words provided by the transformation needs to match the
|
|
// width of the type.
|
|
return static_cast<uint32_t>(message_.word().size()) == words;
|
|
}
|
|
|
|
void TransformationAddConstantScalar::Apply(
|
|
opt::IRContext* context, spvtools::fuzz::FactManager* /*unused*/) const {
|
|
opt::Instruction::OperandList operand_list;
|
|
for (auto word : message_.word()) {
|
|
operand_list.push_back({SPV_OPERAND_TYPE_LITERAL_INTEGER, {word}});
|
|
}
|
|
context->module()->AddGlobalValue(
|
|
MakeUnique<opt::Instruction>(context, SpvOpConstant, message_.type_id(),
|
|
message_.fresh_id(), operand_list));
|
|
|
|
fuzzerutil::UpdateModuleIdBound(context, message_.fresh_id());
|
|
|
|
// We have added an instruction to the module, so need to be careful about the
|
|
// validity of existing analyses.
|
|
context->InvalidateAnalysesExceptFor(opt::IRContext::Analysis::kAnalysisNone);
|
|
}
|
|
|
|
protobufs::Transformation TransformationAddConstantScalar::ToMessage() const {
|
|
protobufs::Transformation result;
|
|
*result.mutable_add_constant_scalar() = message_;
|
|
return result;
|
|
}
|
|
|
|
} // namespace fuzz
|
|
} // namespace spvtools
|