mirror of
https://github.com/KhronosGroup/SPIRV-Tools
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a711c594b8
Adds FuzzerPassAddCompositeInserts, which randomly adds new OpCompositeInsert instructions. Each OpCompositeInsert instruction yields a copy of an original composite with one subcomponent replaced with an existing or newly added object. Synonym facts are added for the unchanged components in the original and added composite, and for the replaced subcomponent and the object, if possible. Fixes #2859
73 lines
2.9 KiB
C++
73 lines
2.9 KiB
C++
// Copyright (c) 2020 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 SPIRV_TOOLS_TRANSFORMATION_COMPOSITE_INSERT_H
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#define SPIRV_TOOLS_TRANSFORMATION_COMPOSITE_INSERT_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 TransformationCompositeInsert : public Transformation {
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public:
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explicit TransformationCompositeInsert(
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const protobufs::TransformationCompositeInsert& message);
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TransformationCompositeInsert(
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const protobufs::InstructionDescriptor& instruction_to_insert_before,
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uint32_t fresh_id, uint32_t composite_id, uint32_t object_id,
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const std::vector<uint32_t>& index);
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// - |message_.fresh_id| must be fresh.
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// - |message_.composite_id| must refer to an existing composite value.
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// - |message_.index| must refer to a correct index in the composite.
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// - The type id of the object and the type id of the component of the
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// composite at index |message_.index| must be the same.
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// - |message_.instruction_to_insert_before| must refer to a defined
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// instruction.
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// - It must be possible to insert OpCompositeInsert before
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// |instruction_to_insert_before|.
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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 instruction OpCompositeInsert before
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// |instruction_to_insert_before|, which creates a new composite from
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// |composite_id| by inserting |object_id| at the specified |index|.
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// Synonyms are created between those components which are identical in the
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// original and the modified composite and between the inserted object and its
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// copy in the modified composite.
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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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// Checks if |instruction| is a instruction of a composite type supported by
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// this transformation.
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static bool IsCompositeInstructionSupported(opt::IRContext* ir_context,
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opt::Instruction* instruction);
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private:
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protobufs::TransformationCompositeInsert message_;
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};
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} // namespace fuzz
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} // namespace spvtools
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#endif // SPIRV_TOOLS_TRANSFORMATION_COMPOSITE_INSERT_H
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