1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
* Copyright (C) 2015 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_SHARPENING_H_
#define ART_COMPILER_OPTIMIZING_SHARPENING_H_
#include "nodes.h"
#include "optimization.h"
namespace art {
class CodeGenerator;
class CompilerDriver;
class DexCompilationUnit;
// Optimization that tries to improve the way we dispatch methods and access types,
// fields, etc. Besides actual method sharpening based on receiver type (for example
// virtual->direct), this includes selecting the best available dispatch for
// invoke-static/-direct based on code generator support.
class HSharpening : public HOptimization {
public:
HSharpening(HGraph* graph,
CodeGenerator* codegen,
const DexCompilationUnit& compilation_unit,
CompilerDriver* compiler_driver,
VariableSizedHandleScope* handles)
: HOptimization(graph, kSharpeningPassName),
codegen_(codegen),
compilation_unit_(compilation_unit),
compiler_driver_(compiler_driver),
handles_(handles) { }
void Run() OVERRIDE;
static constexpr const char* kSharpeningPassName = "sharpening";
// Used by the builder and the inliner.
static HLoadClass::LoadKind ComputeLoadClassKind(HLoadClass* load_class,
CodeGenerator* codegen,
CompilerDriver* compiler_driver,
const DexCompilationUnit& dex_compilation_unit)
REQUIRES_SHARED(Locks::mutator_lock_);
// Used by Sharpening and InstructionSimplifier.
static void SharpenInvokeStaticOrDirect(HInvokeStaticOrDirect* invoke, CodeGenerator* codegen);
private:
void ProcessLoadString(HLoadString* load_string);
CodeGenerator* codegen_;
const DexCompilationUnit& compilation_unit_;
CompilerDriver* compiler_driver_;
VariableSizedHandleScope* handles_;
};
} // namespace art
#endif // ART_COMPILER_OPTIMIZING_SHARPENING_H_
|