You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
2.1 KiB
65 lines
2.1 KiB
4 months ago
|
/*
|
||
|
|
* Copyright (C) 2014 The Android Open Source Project
|
||
|
|
*
|
||
|
|
* 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 ART_COMPILER_OPTIMIZING_INSTRUCTION_SIMPLIFIER_H_
|
||
|
|
#define ART_COMPILER_OPTIMIZING_INSTRUCTION_SIMPLIFIER_H_
|
||
|
|
|
||
|
|
#include "nodes.h"
|
||
|
|
#include "optimization.h"
|
||
|
|
#include "optimizing_compiler_stats.h"
|
||
|
|
|
||
|
|
namespace art {
|
||
|
|
|
||
|
|
class CodeGenerator;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Implements optimizations specific to each instruction.
|
||
|
|
*
|
||
|
|
* Note that graph simplifications producing a constant should be
|
||
|
|
* implemented in art::HConstantFolding, while graph simplifications
|
||
|
|
* not producing constants should be implemented in
|
||
|
|
* art::InstructionSimplifier. (This convention is a choice that was
|
||
|
|
* made during the development of these parts of the compiler and is
|
||
|
|
* not bound by any technical requirement.)
|
||
|
|
*/
|
||
|
|
class InstructionSimplifier : public HOptimization {
|
||
|
|
public:
|
||
|
|
InstructionSimplifier(HGraph* graph,
|
||
|
|
CodeGenerator* codegen,
|
||
|
|
OptimizingCompilerStats* stats = nullptr,
|
||
|
|
const char* name = kInstructionSimplifierPassName,
|
||
|
|
bool use_all_optimizations = false)
|
||
|
|
: HOptimization(graph, name, stats),
|
||
|
|
codegen_(codegen),
|
||
|
|
use_all_optimizations_(use_all_optimizations) {}
|
||
|
|
|
||
|
|
static constexpr const char* kInstructionSimplifierPassName = "instruction_simplifier";
|
||
|
|
|
||
|
|
bool Run() override;
|
||
|
|
|
||
|
|
private:
|
||
|
|
CodeGenerator* codegen_;
|
||
|
|
|
||
|
|
// Use all optimizations without restrictions.
|
||
|
|
bool use_all_optimizations_;
|
||
|
|
|
||
|
|
DISALLOW_COPY_AND_ASSIGN(InstructionSimplifier);
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace art
|
||
|
|
|
||
|
|
#endif // ART_COMPILER_OPTIMIZING_INSTRUCTION_SIMPLIFIER_H_
|