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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.
66 lines
2.5 KiB
C++
66 lines
2.5 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_FUNCTION_PARAMETERS_H_
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#define SOURCE_FUZZ_TRANSFORMATION_PERMUTE_FUNCTION_PARAMETERS_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 TransformationPermuteFunctionParameters : public Transformation {
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public:
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explicit TransformationPermuteFunctionParameters(
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const protobufs::TransformationPermuteFunctionParameters& message);
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TransformationPermuteFunctionParameters(
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uint32_t function_id, uint32_t function_type_fresh_id,
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const std::vector<uint32_t>& permutation);
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// - |function_id| is a valid non-entry-point OpFunction instruction
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// - |function_type_fresh_id| is a fresh id.
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// New type is valid if:
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// - it has the same number of operands as the old one
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// - function's result type is the same as the old one
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// - function's arguments are permuted according to |permutation| vector
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// - |permutation| is a set of [0..(n - 1)], where n is a number of arguments
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// to the function
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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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// - OpFunction instruction with |result_id == function_id| is changed.
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// Its arguments are permuted according to the |permutation| vector
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// - Adjusts function's type to accommodate for permuted parameters.
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// - Calls to the function are adjusted accordingly
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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::TransformationPermuteFunctionParameters 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_FUNCTION_PARAMETERS_H_
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