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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.
59 lines
2.2 KiB
C++
59 lines
2.2 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_PERMUTE_PHI_OPERANDS_H_
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#define SOURCE_FUZZ_TRANSFORMATION_PERMUTE_PHI_OPERANDS_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 TransformationPermutePhiOperands : public Transformation {
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public:
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explicit TransformationPermutePhiOperands(
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const protobufs::TransformationPermutePhiOperands& message);
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TransformationPermutePhiOperands(uint32_t result_id,
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const std::vector<uint32_t>& permutation);
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// - |result_id| must be a valid id of some OpPhi instruction in the module.
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// - |permutation| must contain elements in the range [0, n/2 - 1] where |n|
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// is a number of operands to the instruction with |result_id|. All elements
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// must be unique (i.e. |permutation.size() == n / 2|).
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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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// Permutes operands of the OpPhi instruction with |result_id| according to
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// the elements in |permutation|.
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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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private:
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protobufs::TransformationPermutePhiOperands 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_PERMUTE_PHI_OPERANDS_H_
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