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https://github.com/KhronosGroup/SPIRV-Tools
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67 lines
2.7 KiB
C++
67 lines
2.7 KiB
C++
// Copyright (c) 2019 Google LLC
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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_COMPOSITE_EXTRACT_H_
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#define SOURCE_FUZZ_TRANSFORMATION_COMPOSITE_EXTRACT_H_
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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 TransformationCompositeExtract : public Transformation {
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public:
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explicit TransformationCompositeExtract(
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const protobufs::TransformationCompositeExtract& message);
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TransformationCompositeExtract(
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const protobufs::InstructionDescriptor& instruction_to_insert_before,
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uint32_t fresh_id, uint32_t composite_id, std::vector<uint32_t>&& index);
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// - |message_.fresh_id| must be available
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// - |message_.instruction_to_insert_before| must identify an instruction
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// before which it is valid to place an OpCompositeExtract
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// - |message_.composite_id| must be the id of an instruction that defines
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// a composite object, and this id must be available at the instruction
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// identified by |message_.instruction_to_insert_before|
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// - |message_.index| must be a suitable set of indices for
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// |message_.composite_id|, i.e. it must be possible to follow this chain
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// of indices to reach a sub-object of |message_.composite_id|
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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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// Adds an OpCompositeConstruct instruction before the instruction identified
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// by |message_.instruction_to_insert_before|, that extracts from
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// |message_.composite_id| via indices |message_.index| into
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// |message_.fresh_id|. If |composite_id| is not an irrelevant id,
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// generates a data synonym fact relating
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// |message_.fresh_id| to the extracted element.
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void Apply(opt::IRContext* ir_context,
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TransformationContext* transformation_context) const override;
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protobufs::Transformation ToMessage() const override;
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private:
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protobufs::TransformationCompositeExtract 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_COMPOSITE_EXTRACT_H_
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