SPIRV-Tools/source/fuzz/transformation_permute_function_parameters.h
Alastair Donaldson 8d4261bc44
spirv-fuzz: Introduce TransformationContext (#3272)
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.
2020-04-02 15:54:46 +01:00

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2.5 KiB
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// Copyright (c) 2020 Vasyl Teliman
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SOURCE_FUZZ_TRANSFORMATION_PERMUTE_FUNCTION_PARAMETERS_H_
#define SOURCE_FUZZ_TRANSFORMATION_PERMUTE_FUNCTION_PARAMETERS_H_
#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
#include "source/fuzz/transformation.h"
#include "source/fuzz/transformation_context.h"
#include "source/opt/ir_context.h"
namespace spvtools {
namespace fuzz {
class TransformationPermuteFunctionParameters : public Transformation {
public:
explicit TransformationPermuteFunctionParameters(
const protobufs::TransformationPermuteFunctionParameters& message);
TransformationPermuteFunctionParameters(
uint32_t function_id, uint32_t new_type_id,
const std::vector<uint32_t>& permutation);
// - |function_id| is a valid non-entry-point OpFunction instruction
// - |new_type_id| is a result id of a valid OpTypeFunction instruction.
// New type is valid if:
// - it has the same number of operands as the old one
// - function's result type is the same as the old one
// - function's arguments are permuted according to |permutation| vector
// - |permutation| is a set of [0..(n - 1)], where n is a number of arguments
// to the function
bool IsApplicable(
opt::IRContext* ir_context,
const TransformationContext& transformation_context) const override;
// - OpFunction instruction with |result_id == function_id| is changed.
// Its arguments are permuted according to the |permutation| vector
// - Changed function gets a new type specified by |type_id|
// - Calls to the function are adjusted accordingly
void Apply(opt::IRContext* ir_context,
TransformationContext* transformation_context) const override;
protobufs::Transformation ToMessage() const override;
private:
protobufs::TransformationPermuteFunctionParameters message_;
};
} // namespace fuzz
} // namespace spvtools
#endif // SOURCE_FUZZ_TRANSFORMATION_PERMUTE_FUNCTION_PARAMETERS_H_