Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/rframe.hpp @ 1903:87d6a4d1ecbc
6990192: VM crashes in ciTypeFlow::get_block_for()
Reviewed-by: never
author | twisti |
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date | Tue, 19 Oct 2010 02:52:57 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 1997, 2000, 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 |
c18cbe5936b8
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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 | |
25 // rframes ("recompiler frames") decorate stack frames with some extra information | |
26 // needed by the recompiler. The recompiler views the stack (at the time of recompilation) | |
27 // as a list of rframes. | |
28 | |
29 class RFrame : public ResourceObj { | |
30 protected: | |
31 const frame _fr; // my frame | |
32 JavaThread* const _thread; // thread where frame resides. | |
33 RFrame* _caller; // caller / callee rframes (or NULL) | |
34 RFrame*const _callee; | |
35 const int _num; // stack frame number (0 = most recent) | |
36 int _invocations; // current invocation estimate (for this frame) | |
37 // (i.e., how often was this frame called) | |
38 int _distance; // recompilation search "distance" (measured in # of interpreted frames) | |
39 | |
40 RFrame(frame fr, JavaThread* thread, RFrame*const callee); | |
41 virtual void init() = 0; // compute invocations, loopDepth, etc. | |
42 void print(const char* name); | |
43 | |
44 public: | |
45 | |
46 static RFrame* new_RFrame(frame fr, JavaThread* thread, RFrame*const callee); | |
47 | |
48 virtual bool is_interpreted() const { return false; } | |
49 virtual bool is_compiled() const { return false; } | |
50 int distance() const { return _distance; } | |
51 void set_distance(int d); | |
52 int invocations() const { return _invocations; } | |
53 int num() const { return _num; } | |
54 frame fr() const { return _fr; } | |
55 JavaThread* thread() const { return _thread; } | |
56 virtual int cost() const = 0; // estimated inlining cost (size) | |
57 virtual methodHandle top_method() const = 0; | |
58 virtual javaVFrame* top_vframe() const = 0; | |
59 virtual nmethod* nm() const { ShouldNotCallThis(); return NULL; } | |
60 | |
61 RFrame* caller(); | |
62 RFrame* callee() const { return _callee; } | |
63 RFrame* parent() const; // rframe containing lexical scope (if any) | |
64 virtual void print() = 0; | |
65 | |
66 static int computeSends(methodOop m); | |
67 static int computeSends(nmethod* nm); | |
68 static int computeCumulSends(methodOop m); | |
69 static int computeCumulSends(nmethod* nm); | |
70 }; | |
71 | |
72 class CompiledRFrame : public RFrame { // frame containing a compiled method | |
73 protected: | |
74 nmethod* _nm; | |
75 javaVFrame* _vf; // top vframe; may be NULL (for most recent frame) | |
76 methodHandle _method; // top method | |
77 | |
78 CompiledRFrame(frame fr, JavaThread* thread, RFrame*const callee); | |
79 void init(); | |
80 friend class RFrame; | |
81 | |
82 public: | |
83 CompiledRFrame(frame fr, JavaThread* thread); // for nmethod triggering its counter (callee == NULL) | |
84 bool is_compiled() const { return true; } | |
85 methodHandle top_method() const { return _method; } | |
86 javaVFrame* top_vframe() const { return _vf; } | |
87 nmethod* nm() const { return _nm; } | |
88 int cost() const; | |
89 void print(); | |
90 }; | |
91 | |
92 class InterpretedRFrame : public RFrame { // interpreter frame | |
93 protected: | |
94 javaVFrame* _vf; // may be NULL (for most recent frame) | |
95 methodHandle _method; | |
96 | |
97 InterpretedRFrame(frame fr, JavaThread* thread, RFrame*const callee); | |
98 void init(); | |
99 friend class RFrame; | |
100 | |
101 public: | |
102 InterpretedRFrame(frame fr, JavaThread* thread, methodHandle m); // constructor for method triggering its invocation counter | |
103 bool is_interpreted() const { return true; } | |
104 methodHandle top_method() const { return _method; } | |
105 javaVFrame* top_vframe() const { return _vf; } | |
106 int cost() const; | |
107 void print(); | |
108 }; | |
109 | |
110 // treat deoptimized frames as interpreted | |
111 class DeoptimizedRFrame : public InterpretedRFrame { | |
112 protected: | |
113 DeoptimizedRFrame(frame fr, JavaThread* thread, RFrame*const callee); | |
114 friend class RFrame; | |
115 public: | |
116 void print(); | |
117 }; |