mirror of
https://github.com/KhronosGroup/SPIRV-Tools
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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.
106 lines
3.6 KiB
C++
106 lines
3.6 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_REPLAYER_H_
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#define SOURCE_FUZZ_REPLAYER_H_
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#include <memory>
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#include <vector>
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#include "source/fuzz/protobufs/spirvfuzz_protobufs.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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#include "spirv-tools/libspirv.hpp"
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namespace spvtools {
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namespace fuzz {
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// Transforms a SPIR-V module into a semantically equivalent SPIR-V module by
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// applying a series of pre-defined transformations.
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class Replayer {
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public:
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// Possible statuses that can result from running the replayer.
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enum class ReplayerResultStatus {
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kComplete,
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kFailedToCreateSpirvToolsInterface,
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kInitialBinaryInvalid,
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kReplayValidationFailure,
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kTooManyTransformationsRequested,
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};
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struct ReplayerResult {
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ReplayerResultStatus status;
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std::unique_ptr<opt::IRContext> transformed_module;
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std::unique_ptr<TransformationContext> transformation_context;
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protobufs::TransformationSequence applied_transformations;
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};
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Replayer(spv_target_env target_env, MessageConsumer consumer,
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const std::vector<uint32_t>& binary_in,
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const protobufs::FactSequence& initial_facts,
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const protobufs::TransformationSequence& transformation_sequence_in,
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uint32_t num_transformations_to_apply, bool validate_during_replay,
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spv_validator_options validator_options);
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// Disables copy/move constructor/assignment operations.
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Replayer(const Replayer&) = delete;
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Replayer(Replayer&&) = delete;
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Replayer& operator=(const Replayer&) = delete;
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Replayer& operator=(Replayer&&) = delete;
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~Replayer();
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// Attempts to apply the first |num_transformations_to_apply_| transformations
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// from |transformation_sequence_in_| to |binary_in_|. Initial facts about
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// the input binary and the context in which it will execute are provided via
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// |initial_facts_|.
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//
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// On success, returns a successful result status together with the
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// transformations that were applied, the IR for the transformed module, and
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// the transformation context that arises from applying these transformations.
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// Otherwise, returns an appropriate result status, an empty transformation
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// sequence, and null pointers for the IR context and transformation context.
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ReplayerResult Run();
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private:
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// Target environment.
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const spv_target_env target_env_;
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// Message consumer.
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MessageConsumer consumer_;
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// The binary to which transformations are to be applied.
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const std::vector<uint32_t>& binary_in_;
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// Initial facts known to hold in advance of applying any transformations.
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const protobufs::FactSequence& initial_facts_;
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// The transformations to be replayed.
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const protobufs::TransformationSequence& transformation_sequence_in_;
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// The number of transformations that should be replayed.
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const uint32_t num_transformations_to_apply_;
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// Controls whether the validator should be run after every replay step.
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const bool validate_during_replay_;
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// Options to control validation
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spv_validator_options validator_options_;
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};
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} // namespace fuzz
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} // namespace spvtools
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#endif // SOURCE_FUZZ_REPLAYER_H_
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