SPIRV-Tools/source/fuzz/transformation_add_constant_scalar.h
Alastair Donaldson 620197bd65
Add fuzzer pass that adds useful constructs to a module (#2647)
This new pass adds some basic ingredients to a module on which future
passes are likely to depend, such as boolean constants and some
specfic integer and floating-point values.  This is not a fuzzer pass
in the true sense in that it does not employ randomization, but it
makes sense to define it as a fuzzer pass since it is the first of a
number of transformations passes that the fuzzer will run on a module.
2019-06-04 14:55:00 +01:00

47 lines
1.8 KiB
C++

// Copyright (c) 2019 Google LLC
//
// 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_ADD_CONSTANT_SCALAR_H_
#define SOURCE_FUZZ_TRANSFORMATION_ADD_CONSTANT_SCALAR_H_
#include <vector>
#include "source/fuzz/fact_manager.h"
#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
#include "source/opt/ir_context.h"
namespace spvtools {
namespace fuzz {
namespace transformation {
// - |message.fresh_id| must not be used by the module
// - |message.type_id| must be the id of a floating-point or integer type
// - The size of |message.word| must be compatible with the width of this type
bool IsApplicable(const protobufs::TransformationAddConstantScalar& message,
opt::IRContext* context, const FactManager& fact_manager);
// Adds a new OpConstant instruction with the given type and words.
void Apply(const protobufs::TransformationAddConstantScalar& message,
opt::IRContext* context, FactManager* fact_manager);
// Helper factory to create a transformation message.
protobufs::TransformationAddConstantScalar MakeTransformationAddConstantScalar(
uint32_t fresh_id, uint32_t type_id, std::vector<uint32_t> words);
} // namespace transformation
} // namespace fuzz
} // namespace spvtools
#endif // SOURCE_FUZZ_TRANSFORMATION_ADD_CONSTANT_SCALAR_H_