SPIRV-Tools/source/fuzz/transformation_add_local_variable.h
Alastair Donaldson 6382cbb497
spirv-fuzz: Avoid invalidating analyses in various transformations (#4205)
Avoids invalidating all analyses in transformations that add
constants, OpUndef and global and local variables.
2021-03-20 22:48:02 +00:00

65 lines
2.5 KiB
C++

// Copyright (c) 2020 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_LOCAL_VARIABLE_H_
#define SOURCE_FUZZ_TRANSFORMATION_ADD_LOCAL_VARIABLE_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 TransformationAddLocalVariable : public Transformation {
public:
explicit TransformationAddLocalVariable(
protobufs::TransformationAddLocalVariable message);
TransformationAddLocalVariable(uint32_t fresh_id, uint32_t type_id,
uint32_t function_id, uint32_t initializer_id,
bool value_is_irrelevant);
// - |message_.fresh_id| must not be used by the module
// - |message_.type_id| must be the id of a pointer type with Function
// storage class
// - |message_.initializer_id| must be the id of a constant with the same
// type as the pointer's pointee type
// - |message_.function_id| must be the id of a function
bool IsApplicable(
opt::IRContext* ir_context,
const TransformationContext& transformation_context) const override;
// Adds an instruction to the start of |message_.function_id|, of the form:
// |message_.fresh_id| = OpVariable |message_.type_id| Function
// |message_.initializer_id|
// If |message_.value_is_irrelevant| holds, adds a corresponding fact to the
// fact manager in |transformation_context|.
void Apply(opt::IRContext* ir_context,
TransformationContext* transformation_context) const override;
std::unordered_set<uint32_t> GetFreshIds() const override;
protobufs::Transformation ToMessage() const override;
private:
protobufs::TransformationAddLocalVariable message_;
};
} // namespace fuzz
} // namespace spvtools
#endif // SOURCE_FUZZ_TRANSFORMATION_ADD_LOCAL_VARIABLE_H_