Mercurial > hg > truffle
annotate src/share/vm/runtime/vframe_hp.hpp @ 20074:a7ee2e1f0d4e
remove UnboxNodes without usages (if object is non-null)
author | Lukas Stadler <lukas.stadler@oracle.com> |
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date | Mon, 30 Mar 2015 13:59:59 +0200 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_RUNTIME_VFRAME_HP_HPP |
26 #define SHARE_VM_RUNTIME_VFRAME_HP_HPP | |
27 | |
28 #include "runtime/vframe.hpp" | |
29 | |
0 | 30 class compiledVFrame: public javaVFrame { |
31 public: | |
32 // JVM state | |
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33 Method* method() const; |
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34 int bci() const; |
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35 bool should_reexecute() const; |
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36 StackValueCollection* locals() const; |
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37 StackValueCollection* expressions() const; |
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38 GrowableArray<MonitorInfo*>* monitors() const; |
0 | 39 |
40 void set_locals(StackValueCollection* values) const; | |
41 | |
42 // Virtuals defined in vframe | |
43 bool is_compiled_frame() const { return true; } | |
44 vframe* sender() const; | |
45 bool is_top() const; | |
46 | |
47 // Casting | |
48 static compiledVFrame* cast(vframe* vf) { | |
49 assert(vf == NULL || vf->is_compiled_frame(), "must be compiled frame"); | |
50 return (compiledVFrame*) vf; | |
51 } | |
52 | |
53 public: | |
54 // Constructors | |
55 compiledVFrame(const frame* fr, const RegisterMap* reg_map, JavaThread* thread, nmethod* nm); | |
56 | |
57 // Update a local in a compiled frame. Update happens when deopt occurs | |
58 void update_local(BasicType type, int index, jvalue value); | |
59 | |
60 // Returns the active nmethod | |
61 nmethod* code() const; | |
62 | |
63 // Returns the scopeDesc | |
64 ScopeDesc* scope() const { return _scope; } | |
65 | |
66 // Returns SynchronizationEntryBCI or bci() (used for synchronization) | |
67 int raw_bci() const; | |
68 | |
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69 protected: |
0 | 70 ScopeDesc* _scope; |
71 | |
72 | |
73 //StackValue resolve(ScopeValue* sv) const; | |
74 BasicLock* resolve_monitor_lock(Location location) const; | |
75 StackValue *create_stack_value(ScopeValue *sv) const; | |
76 | |
77 private: | |
78 compiledVFrame(const frame* fr, const RegisterMap* reg_map, JavaThread* thread, ScopeDesc* scope); | |
79 | |
80 #ifndef PRODUCT | |
81 public: | |
82 void verify() const; | |
83 #endif | |
84 }; | |
85 | |
86 // In order to implement set_locals for compiled vframes we must | |
87 // store updated locals in a data structure that contains enough | |
88 // information to recognize equality with a vframe and to store | |
89 // any updated locals. | |
90 | |
91 class jvmtiDeferredLocalVariable; | |
6197 | 92 class jvmtiDeferredLocalVariableSet : public CHeapObj<mtCompiler> { |
0 | 93 private: |
94 | |
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95 Method* _method; |
0 | 96 int _bci; |
97 intptr_t* _id; | |
98 GrowableArray<jvmtiDeferredLocalVariable*>* _locals; | |
99 | |
100 public: | |
101 // JVM state | |
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102 Method* method() const { return _method; } |
0 | 103 int bci() const { return _bci; } |
104 intptr_t* id() const { return _id; } | |
105 GrowableArray<jvmtiDeferredLocalVariable*>* locals() const { return _locals; } | |
106 void set_local_at(int idx, BasicType typ, jvalue val); | |
107 | |
108 // Does the vframe match this jvmtiDeferredLocalVariableSet | |
109 bool matches(vframe* vf); | |
110 // GC | |
111 void oops_do(OopClosure* f); | |
112 | |
113 // constructor | |
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114 jvmtiDeferredLocalVariableSet(Method* method, int bci, intptr_t* id); |
0 | 115 |
116 // destructor | |
117 ~jvmtiDeferredLocalVariableSet(); | |
118 | |
119 | |
120 }; | |
121 | |
6197 | 122 class jvmtiDeferredLocalVariable : public CHeapObj<mtCompiler> { |
0 | 123 public: |
124 | |
125 jvmtiDeferredLocalVariable(int index, BasicType type, jvalue value); | |
126 | |
127 BasicType type(void) { return _type; } | |
128 int index(void) { return _index; } | |
129 jvalue value(void) { return _value; } | |
130 // Only mutator is for value as only it can change | |
131 void set_value(jvalue value) { _value = value; } | |
132 // For gc | |
133 oop* oop_addr(void) { return (oop*) &_value.l; } | |
134 | |
135 private: | |
136 | |
137 BasicType _type; | |
138 jvalue _value; | |
139 int _index; | |
140 | |
141 }; | |
1972 | 142 |
143 #endif // SHARE_VM_RUNTIME_VFRAME_HP_HPP |