122 строки
4.2 KiB
C++
122 строки
4.2 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/transformation_add_image_sample_unused_components.h"
|
|
|
|
#include "source/fuzz/fuzzer_util.h"
|
|
#include "source/fuzz/instruction_descriptor.h"
|
|
|
|
namespace spvtools {
|
|
namespace fuzz {
|
|
|
|
TransformationAddImageSampleUnusedComponents::
|
|
TransformationAddImageSampleUnusedComponents(
|
|
protobufs::TransformationAddImageSampleUnusedComponents message)
|
|
: message_(std::move(message)) {}
|
|
|
|
TransformationAddImageSampleUnusedComponents::
|
|
TransformationAddImageSampleUnusedComponents(
|
|
uint32_t coordinate_with_unused_components_id,
|
|
const protobufs::InstructionDescriptor& instruction_descriptor) {
|
|
message_.set_coordinate_with_unused_components_id(
|
|
coordinate_with_unused_components_id);
|
|
*message_.mutable_instruction_descriptor() = instruction_descriptor;
|
|
}
|
|
|
|
bool TransformationAddImageSampleUnusedComponents::IsApplicable(
|
|
opt::IRContext* ir_context, const TransformationContext& /*unused*/) const {
|
|
auto image_sample_instruction =
|
|
FindInstruction(message_.instruction_descriptor(), ir_context);
|
|
|
|
// The image sample instruction must be defined.
|
|
if (image_sample_instruction == nullptr) {
|
|
return false;
|
|
}
|
|
|
|
// The instruction must be an image sample instruction.
|
|
if (!spvOpcodeIsImageSample(image_sample_instruction->opcode())) {
|
|
return false;
|
|
}
|
|
|
|
uint32_t coordinate_id = image_sample_instruction->GetSingleWordInOperand(1);
|
|
auto coordinate_instruction =
|
|
ir_context->get_def_use_mgr()->GetDef(coordinate_id);
|
|
auto coordinate_type =
|
|
ir_context->get_type_mgr()->GetType(coordinate_instruction->type_id());
|
|
|
|
// It must be possible to add unused components.
|
|
if (coordinate_type->AsVector() &&
|
|
coordinate_type->AsVector()->element_count() == 4) {
|
|
return false;
|
|
}
|
|
|
|
auto coordinate_with_unused_components_instruction =
|
|
ir_context->get_def_use_mgr()->GetDef(
|
|
message_.coordinate_with_unused_components_id());
|
|
|
|
// The coordinate with unused components instruction must be defined.
|
|
if (coordinate_with_unused_components_instruction == nullptr) {
|
|
return false;
|
|
}
|
|
|
|
// It must be an OpCompositeConstruct instruction such that it can be checked
|
|
// that the original components are present.
|
|
if (coordinate_with_unused_components_instruction->opcode() !=
|
|
spv::Op::OpCompositeConstruct) {
|
|
return false;
|
|
}
|
|
|
|
// The first constituent must be the original coordinate.
|
|
if (coordinate_with_unused_components_instruction->GetSingleWordInOperand(
|
|
0) != coordinate_id) {
|
|
return false;
|
|
}
|
|
|
|
auto coordinate_with_unused_components_type =
|
|
ir_context->get_type_mgr()->GetType(
|
|
coordinate_with_unused_components_instruction->type_id());
|
|
|
|
// |coordinate_with_unused_components_type| must be a vector.
|
|
if (!coordinate_with_unused_components_type->AsVector()) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void TransformationAddImageSampleUnusedComponents::Apply(
|
|
opt::IRContext* ir_context, TransformationContext* /*unused*/) const {
|
|
// Sets the coordinate operand.
|
|
auto image_sample_instruction =
|
|
FindInstruction(message_.instruction_descriptor(), ir_context);
|
|
image_sample_instruction->SetInOperand(
|
|
1, {message_.coordinate_with_unused_components_id()});
|
|
ir_context->InvalidateAnalysesExceptFor(opt::IRContext::kAnalysisNone);
|
|
}
|
|
|
|
protobufs::Transformation
|
|
TransformationAddImageSampleUnusedComponents::ToMessage() const {
|
|
protobufs::Transformation result;
|
|
*result.mutable_add_image_sample_unused_components() = message_;
|
|
return result;
|
|
}
|
|
|
|
std::unordered_set<uint32_t>
|
|
TransformationAddImageSampleUnusedComponents::GetFreshIds() const {
|
|
return std::unordered_set<uint32_t>();
|
|
}
|
|
|
|
} // namespace fuzz
|
|
} // namespace spvtools
|