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https://github.com/KhronosGroup/SPIRV-Tools
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Some transformations (e.g. TransformationAddFunction) rely on running the validator to decide whether the transformation is applicable. A recent change allowed spirv-fuzz to take validator options, to cater for the case where a module should be considered valid under particular conditions. However, validation during the checking of transformations had no access to these validator options. This change introduced TransformationContext, which currently consists of a fact manager and a set of validator options, but could in the future have other fields corresponding to other objects that it is useful to have access to when applying transformations. Now, instead of checking and applying transformations in the context of a FactManager, a TransformationContext is used. This gives access to the fact manager as before, and also access to the validator options when they are needed.
66 lines
2.6 KiB
C++
66 lines
2.6 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|. 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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