mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-10-18 19:20:05 +00:00
fcb22ecf0f
Adds a virtual method, GetFreshIds(), to Transformation. Every transformation uses this to indicate which ids in its protobuf message are fresh ids. This means that when replaying a sequence of transformations the replayer can obtain a smallest id that is not in use by the module already and that will not be used by any transformation by necessity. Ids greater than or equal to this id can be used as overflow ids. Fixes #3851.
91 lines
3.9 KiB
C++
91 lines
3.9 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.
|
|
|
|
#ifndef SOURCE_FUZZ_TRANSFORMATION_REPLACE_PARAMS_WITH_STRUCT_H_
|
|
#define SOURCE_FUZZ_TRANSFORMATION_REPLACE_PARAMS_WITH_STRUCT_H_
|
|
|
|
#include <map>
|
|
|
|
#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
|
|
#include "source/fuzz/transformation.h"
|
|
#include "source/fuzz/transformation_context.h"
|
|
#include "source/opt/ir_context.h"
|
|
|
|
namespace spvtools {
|
|
namespace fuzz {
|
|
|
|
class TransformationReplaceParamsWithStruct : public Transformation {
|
|
public:
|
|
explicit TransformationReplaceParamsWithStruct(
|
|
const protobufs::TransformationReplaceParamsWithStruct& message);
|
|
|
|
TransformationReplaceParamsWithStruct(
|
|
const std::vector<uint32_t>& parameter_id,
|
|
uint32_t fresh_function_type_id, uint32_t fresh_parameter_id,
|
|
const std::map<uint32_t, uint32_t>& caller_id_to_fresh_composite_id);
|
|
|
|
// - Each element of |parameter_id| is a valid result id of some
|
|
// OpFunctionParameter instruction. All parameter ids must correspond to
|
|
// parameters of the same function. That function may not be an entry-point
|
|
// function.
|
|
// - Types of all parameters must be supported by this transformation (see
|
|
// IsParameterTypeSupported method).
|
|
// - |parameter_id| may not be empty or contain duplicates.
|
|
// - There must exist an OpTypeStruct instruction containing types of all
|
|
// replaced parameters. Type of the i'th component of the struct is equal
|
|
// to the type of the instruction with result id |parameter_id[i]|.
|
|
// - |caller_id_to_fresh_composite_id| should contain a key for at least every
|
|
// result id of an OpFunctionCall instruction that calls the function.
|
|
// - |fresh_function_type_id|, |fresh_parameter_id|,
|
|
// |caller_id_to_fresh_composite_id| are all fresh and unique ids.
|
|
bool IsApplicable(
|
|
opt::IRContext* ir_context,
|
|
const TransformationContext& transformation_context) const override;
|
|
|
|
// - Creates a new function parameter with result id |fresh_parameter_id|.
|
|
// Parameter's type is OpTypeStruct with each components type equal to the
|
|
// type of the replaced parameter.
|
|
// - OpCompositeConstruct with result id from |fresh_composite_id| is inserted
|
|
// before each OpFunctionCall instruction.
|
|
// - OpCompositeExtract with result id equal to the result id of the replaced
|
|
// parameter is created in the function.
|
|
void Apply(opt::IRContext* ir_context,
|
|
TransformationContext* transformation_context) const override;
|
|
|
|
std::unordered_set<uint32_t> GetFreshIds() const override;
|
|
|
|
protobufs::Transformation ToMessage() const override;
|
|
|
|
// Returns true if parameter's type is supported by this transformation.
|
|
static bool IsParameterTypeSupported(const opt::analysis::Type& param_type);
|
|
|
|
private:
|
|
// Returns a result id of the OpTypeStruct instruction required by this
|
|
// transformation (see docs on the IsApplicable method to learn more).
|
|
uint32_t MaybeGetRequiredStructType(opt::IRContext* ir_context) const;
|
|
|
|
// Returns a vector of indices of parameters to replace. Concretely, i'th
|
|
// element is the index of the parameter with result id |parameter_id[i]| in
|
|
// its function.
|
|
std::vector<uint32_t> ComputeIndicesOfReplacedParameters(
|
|
opt::IRContext* ir_context) const;
|
|
|
|
protobufs::TransformationReplaceParamsWithStruct message_;
|
|
};
|
|
|
|
} // namespace fuzz
|
|
} // namespace spvtools
|
|
|
|
#endif // SOURCE_FUZZ_TRANSFORMATION_REPLACE_PARAMS_WITH_STRUCT_H_
|