mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-12-30 19:51:09 +00:00
94 lines
3.4 KiB
C++
94 lines
3.4 KiB
C++
// Copyright (c) 2020 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_local_variable.h"
|
|
|
|
#include "source/fuzz/fuzzer_util.h"
|
|
|
|
namespace spvtools {
|
|
namespace fuzz {
|
|
|
|
TransformationAddLocalVariable::TransformationAddLocalVariable(
|
|
const spvtools::fuzz::protobufs::TransformationAddLocalVariable& message)
|
|
: message_(message) {}
|
|
|
|
TransformationAddLocalVariable::TransformationAddLocalVariable(
|
|
uint32_t fresh_id, uint32_t type_id, uint32_t function_id,
|
|
uint32_t initializer_id, bool value_is_irrelevant) {
|
|
message_.set_fresh_id(fresh_id);
|
|
message_.set_type_id(type_id);
|
|
message_.set_function_id(function_id);
|
|
message_.set_initializer_id(initializer_id);
|
|
message_.set_value_is_irrelevant(value_is_irrelevant);
|
|
}
|
|
|
|
bool TransformationAddLocalVariable::IsApplicable(
|
|
opt::IRContext* ir_context, const TransformationContext& /*unused*/) const {
|
|
// The provided id must be fresh.
|
|
if (!fuzzerutil::IsFreshId(ir_context, message_.fresh_id())) {
|
|
return false;
|
|
}
|
|
// The pointer type id must indeed correspond to a pointer, and it must have
|
|
// function storage class.
|
|
auto type_instruction =
|
|
ir_context->get_def_use_mgr()->GetDef(message_.type_id());
|
|
if (!type_instruction || type_instruction->opcode() != SpvOpTypePointer ||
|
|
type_instruction->GetSingleWordInOperand(0) != SpvStorageClassFunction) {
|
|
return false;
|
|
}
|
|
// The initializer must...
|
|
auto initializer_instruction =
|
|
ir_context->get_def_use_mgr()->GetDef(message_.initializer_id());
|
|
// ... exist, ...
|
|
if (!initializer_instruction) {
|
|
return false;
|
|
}
|
|
// ... be a constant, ...
|
|
if (!spvOpcodeIsConstant(initializer_instruction->opcode())) {
|
|
return false;
|
|
}
|
|
// ... and have the same type as the pointee type.
|
|
if (initializer_instruction->type_id() !=
|
|
type_instruction->GetSingleWordInOperand(1)) {
|
|
return false;
|
|
}
|
|
// The function to which the local variable is to be added must exist.
|
|
return fuzzerutil::FindFunction(ir_context, message_.function_id());
|
|
}
|
|
|
|
void TransformationAddLocalVariable::Apply(
|
|
opt::IRContext* ir_context,
|
|
TransformationContext* transformation_context) const {
|
|
fuzzerutil::AddLocalVariable(ir_context, message_.fresh_id(),
|
|
message_.type_id(), message_.function_id(),
|
|
message_.initializer_id());
|
|
|
|
fuzzerutil::UpdateModuleIdBound(ir_context, message_.fresh_id());
|
|
|
|
if (message_.value_is_irrelevant()) {
|
|
transformation_context->GetFactManager()->AddFactValueOfPointeeIsIrrelevant(
|
|
message_.fresh_id());
|
|
}
|
|
ir_context->InvalidateAnalysesExceptFor(opt::IRContext::kAnalysisNone);
|
|
}
|
|
|
|
protobufs::Transformation TransformationAddLocalVariable::ToMessage() const {
|
|
protobufs::Transformation result;
|
|
*result.mutable_add_local_variable() = message_;
|
|
return result;
|
|
}
|
|
|
|
} // namespace fuzz
|
|
} // namespace spvtools
|