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https://github.com/KhronosGroup/SPIRV-Tools
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92 lines
3.9 KiB
C++
92 lines
3.9 KiB
C++
// Copyright (c) 2020 Vasyl Teliman
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SOURCE_FUZZ_TRANSFORMATION_REPLACE_PARAMS_WITH_STRUCT_H_
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#define SOURCE_FUZZ_TRANSFORMATION_REPLACE_PARAMS_WITH_STRUCT_H_
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#include <map>
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#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
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#include "source/fuzz/transformation.h"
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#include "source/fuzz/transformation_context.h"
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#include "source/opt/ir_context.h"
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namespace spvtools {
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namespace fuzz {
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class TransformationReplaceParamsWithStruct : public Transformation {
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public:
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explicit TransformationReplaceParamsWithStruct(
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const protobufs::TransformationReplaceParamsWithStruct& message);
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TransformationReplaceParamsWithStruct(
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const std::vector<uint32_t>& parameter_id,
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uint32_t fresh_function_type_id, uint32_t fresh_parameter_id,
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const std::map<uint32_t, uint32_t>& caller_id_to_fresh_composite_id);
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// - Each element of |parameter_id| is a valid result id of some
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// OpFunctionParameter instruction. All parameter ids must correspond to
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// parameters of the same function. That function may not be an entry-point
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// function.
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// - Types of all parameters must be supported by this transformation (see
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// IsParameterTypeSupported method).
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// - |parameter_id| may not be empty or contain duplicates.
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// - There must exist an OpTypeStruct instruction containing types of all
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// replaced parameters. Type of the i'th component of the struct is equal
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// to the type of the instruction with result id |parameter_id[i]|.
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// - |caller_id_to_fresh_composite_id| should contain a key for at least every
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// result id of an OpFunctionCall instruction that calls the function.
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// - |fresh_function_type_id|, |fresh_parameter_id|,
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// |caller_id_to_fresh_composite_id| are all fresh and unique ids.
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bool IsApplicable(
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opt::IRContext* ir_context,
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const TransformationContext& transformation_context) const override;
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// - Creates a new function parameter with result id |fresh_parameter_id|.
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// Parameter's type is OpTypeStruct with each components type equal to the
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// type of the replaced parameter.
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// - OpCompositeConstruct with result id from |fresh_composite_id| is inserted
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// before each OpFunctionCall instruction.
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// - OpCompositeExtract with result id equal to the result id of the replaced
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// parameter is created in the function.
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void Apply(opt::IRContext* ir_context,
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TransformationContext* transformation_context) const override;
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std::unordered_set<uint32_t> GetFreshIds() const override;
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protobufs::Transformation ToMessage() const override;
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// Returns true if parameter's type is supported by this transformation.
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static bool IsParameterTypeSupported(opt::IRContext* ir_context,
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uint32_t param_type_id);
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private:
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// Returns a result id of the OpTypeStruct instruction required by this
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// transformation (see docs on the IsApplicable method to learn more).
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uint32_t MaybeGetRequiredStructType(opt::IRContext* ir_context) const;
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// Returns a vector of indices of parameters to replace. Concretely, i'th
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// element is the index of the parameter with result id |parameter_id[i]| in
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// its function.
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std::vector<uint32_t> ComputeIndicesOfReplacedParameters(
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opt::IRContext* ir_context) const;
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protobufs::TransformationReplaceParamsWithStruct message_;
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};
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} // namespace fuzz
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} // namespace spvtools
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#endif // SOURCE_FUZZ_TRANSFORMATION_REPLACE_PARAMS_WITH_STRUCT_H_
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