1 /*
2  * Copyright (C) 2015 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef ART_COMPILER_OPTIMIZING_SHARPENING_H_
18 #define ART_COMPILER_OPTIMIZING_SHARPENING_H_
19 
20 #include "base/macros.h"
21 #include "nodes.h"
22 #include "optimization.h"
23 
24 namespace art HIDDEN {
25 
26 class CodeGenerator;
27 class DexCompilationUnit;
28 
29 // Utility methods that try to improve the way we dispatch methods, and access
30 // types and strings.
31 class HSharpening {
32  public:
33   // Used by the builder and InstructionSimplifier.
34   static HInvokeStaticOrDirect::DispatchInfo SharpenLoadMethod(
35       ArtMethod* callee,
36       bool has_method_id,
37       bool for_interface_call,
38       CodeGenerator* codegen);
39 
40   // Used by the builder and the inliner.
41   static HLoadClass::LoadKind ComputeLoadClassKind(HLoadClass* load_class,
42                                                    CodeGenerator* codegen,
43                                                    const DexCompilationUnit& dex_compilation_unit)
44       REQUIRES_SHARED(Locks::mutator_lock_);
45 
46   // Used by the builder.
47   static TypeCheckKind ComputeTypeCheckKind(ObjPtr<mirror::Class> klass,
48                                             CodeGenerator* codegen,
49                                             bool needs_access_check)
50       REQUIRES_SHARED(Locks::mutator_lock_);
51 
52   // Used by the builder.
53   static void ProcessLoadString(HLoadString* load_string,
54                                 CodeGenerator* codegen,
55                                 const DexCompilationUnit& dex_compilation_unit,
56                                 VariableSizedHandleScope* handles);
57 };
58 
59 }  // namespace art
60 
61 #endif  // ART_COMPILER_OPTIMIZING_SHARPENING_H_
62