Mercurial > hg > truffle
annotate src/share/vm/ci/ciMethodBlocks.hpp @ 14702:d4dd5204c0aa
Merge
author | ehelin |
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date | Fri, 14 Mar 2014 13:27:18 +0100 |
parents | f95d63e2154a |
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rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 2006, 2010, 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_CI_CIMETHODBLOCKS_HPP |
26 #define SHARE_VM_CI_CIMETHODBLOCKS_HPP | |
27 | |
28 #include "ci/ciMethod.hpp" | |
29 #include "memory/resourceArea.hpp" | |
30 #include "utilities/growableArray.hpp" | |
31 | |
0 | 32 |
33 class ciBlock; | |
34 | |
35 typedef short ciBlockIndex; | |
36 | |
37 class ciMethodBlocks : public ResourceObj { | |
38 private: | |
39 ciMethod *_method; | |
40 Arena *_arena; | |
41 GrowableArray<ciBlock *> *_blocks; | |
42 ciBlock **_bci_to_block; | |
43 int _num_blocks; | |
44 int _code_size; | |
45 | |
46 void do_analysis(); | |
47 public: | |
48 ciMethodBlocks(Arena *arena, ciMethod *meth); | |
49 | |
50 ciBlock *block_containing(int bci); | |
51 ciBlock *block(int index) { return _blocks->at(index); } | |
52 ciBlock *make_block_at(int bci); | |
53 ciBlock *split_block_at(int bci); | |
54 bool is_block_start(int bci); | |
55 int num_blocks() { return _num_blocks;} | |
56 void clear_processed(); | |
57 | |
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58 ciBlock *make_dummy_block(); // a block not associated with a bci |
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59 |
0 | 60 #ifndef PRODUCT |
61 void dump(); | |
62 #endif | |
63 }; | |
64 | |
65 class ciBlock : public ResourceObj { | |
66 private: | |
67 int _idx; | |
68 int _start_bci; | |
69 int _limit_bci; | |
70 int _control_bci; | |
71 uint _flags; | |
72 int _ex_start_bci; | |
73 int _ex_limit_bci; | |
74 #ifndef PRODUCT | |
75 ciMethod *_method; | |
76 #endif | |
77 enum { | |
78 Processed = (1 << 0), | |
79 Handler = (1 << 1), | |
80 MayThrow = (1 << 2), | |
81 DoesJsr = (1 << 3), | |
82 DoesRet = (1 << 4), | |
83 RetTarget = (1 << 5), | |
84 HasHandler = (1 << 6) | |
85 }; | |
86 | |
87 | |
88 public: | |
89 enum { | |
90 fall_through_bci = -1 | |
91 }; | |
92 | |
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93 ciBlock(ciMethod *method, int index, int start_bci); |
0 | 94 int start_bci() const { return _start_bci; } |
95 int limit_bci() const { return _limit_bci; } | |
96 int control_bci() const { return _control_bci; } | |
97 int index() const { return _idx; } | |
98 void set_start_bci(int bci) { _start_bci = bci; } | |
99 void set_limit_bci(int bci) { _limit_bci = bci; } | |
100 void set_control_bci(int bci) { _control_bci = bci;} | |
101 void set_exception_range(int start_bci, int limit_bci); | |
102 int ex_start_bci() const { return _ex_start_bci; } | |
103 int ex_limit_bci() const { return _ex_limit_bci; } | |
104 bool contains(int bci) const { return start_bci() <= bci && bci < limit_bci(); } | |
105 | |
106 // flag handling | |
107 bool processed() const { return (_flags & Processed) != 0; } | |
108 bool is_handler() const { return (_flags & Handler) != 0; } | |
109 bool may_throw() const { return (_flags & MayThrow) != 0; } | |
110 bool does_jsr() const { return (_flags & DoesJsr) != 0; } | |
111 bool does_ret() const { return (_flags & DoesRet) != 0; } | |
112 bool has_handler() const { return (_flags & HasHandler) != 0; } | |
113 bool is_ret_target() const { return (_flags & RetTarget) != 0; } | |
114 void set_processed() { _flags |= Processed; } | |
115 void clear_processed() { _flags &= ~Processed; } | |
116 void set_handler() { _flags |= Handler; } | |
117 void set_may_throw() { _flags |= MayThrow; } | |
118 void set_does_jsr() { _flags |= DoesJsr; } | |
119 void clear_does_jsr() { _flags &= ~DoesJsr; } | |
120 void set_does_ret() { _flags |= DoesRet; } | |
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121 void clear_does_ret() { _flags &= ~DoesRet; } |
0 | 122 void set_is_ret_target() { _flags |= RetTarget; } |
123 void set_has_handler() { _flags |= HasHandler; } | |
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124 void clear_exception_handler() { _flags &= ~Handler; _ex_start_bci = -1; _ex_limit_bci = -1; } |
0 | 125 #ifndef PRODUCT |
126 ciMethod *method() const { return _method; } | |
127 void dump(); | |
128 void print_on(outputStream* st) const PRODUCT_RETURN; | |
129 #endif | |
130 }; | |
1972 | 131 |
132 #endif // SHARE_VM_CI_CIMETHODBLOCKS_HPP |