Mercurial > hg > truffle
annotate src/share/vm/oops/oop.cpp @ 17381:40dce17629ac
correct IfNode probabilities in If-Deopt situations
author | Lukas Stadler <lukas.stadler@oracle.com> |
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date | Wed, 08 Oct 2014 10:49:53 +0200 |
parents | 4ca6dc0799b6 |
children | 52b4284cb496 |
rev | line source |
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0 | 1 /* |
14909 | 2 * Copyright (c) 1997, 2013, 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 #include "precompiled.hpp" |
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26 #include "classfile/altHashing.hpp" |
1972 | 27 #include "classfile/javaClasses.hpp" |
28 #include "oops/oop.inline.hpp" | |
29 #include "runtime/handles.inline.hpp" | |
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30 #include "runtime/thread.inline.hpp" |
1972 | 31 #include "utilities/copy.hpp" |
0 | 32 |
33 bool always_do_update_barrier = false; | |
34 | |
35 BarrierSet* oopDesc::_bs = NULL; | |
36 | |
37 void oopDesc::print_on(outputStream* st) const { | |
38 if (this == NULL) { | |
39 st->print_cr("NULL"); | |
40 } else { | |
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41 klass()->oop_print_on(oop(this), st); |
0 | 42 } |
43 } | |
44 | |
45 void oopDesc::print_address_on(outputStream* st) const { | |
46 if (PrintOopAddress) { | |
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47 st->print("{"INTPTR_FORMAT"}", this); |
0 | 48 } |
49 } | |
50 | |
51 void oopDesc::print() { print_on(tty); } | |
52 | |
53 void oopDesc::print_address() { print_address_on(tty); } | |
54 | |
55 char* oopDesc::print_string() { | |
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56 stringStream st; |
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57 print_on(&st); |
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58 return st.as_string(); |
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59 } |
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60 |
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61 void oopDesc::print_value() { |
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62 print_value_on(tty); |
0 | 63 } |
64 | |
65 char* oopDesc::print_value_string() { | |
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66 char buf[100]; |
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67 stringStream st(buf, sizeof(buf)); |
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68 print_value_on(&st); |
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69 return st.as_string(); |
0 | 70 } |
71 | |
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72 void oopDesc::print_value_on(outputStream* st) const { |
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73 oop obj = oop(this); |
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74 if (this == NULL) { |
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75 st->print("NULL"); |
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76 } else if (java_lang_String::is_instance(obj)) { |
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77 java_lang_String::print(obj, st); |
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78 if (PrintOopAddress) print_address_on(st); |
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79 } else { |
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80 klass()->oop_print_value_on(obj, st); |
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81 } |
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82 } |
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83 |
0 | 84 |
85 void oopDesc::verify_on(outputStream* st) { | |
86 if (this != NULL) { | |
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87 klass()->oop_verify_on(this, st); |
0 | 88 } |
89 } | |
90 | |
91 | |
92 void oopDesc::verify() { | |
93 verify_on(tty); | |
94 } | |
95 | |
96 intptr_t oopDesc::slow_identity_hash() { | |
97 // slow case; we have to acquire the micro lock in order to locate the header | |
98 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
99 HandleMark hm; | |
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100 Handle object(this); |
0 | 101 return ObjectSynchronizer::identity_hash_value_for(object); |
102 } | |
103 | |
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104 // When String table needs to rehash |
14909 | 105 unsigned int oopDesc::new_hash(jint seed) { |
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106 EXCEPTION_MARK; |
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107 ResourceMark rm; |
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108 int length; |
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109 jchar* chars = java_lang_String::as_unicode_string(this, length, THREAD); |
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110 if (chars != NULL) { |
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111 // Use alternate hashing algorithm on the string |
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112 return AltHashing::murmur3_32(seed, chars, length); |
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113 } else { |
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114 vm_exit_out_of_memory(length, OOM_MALLOC_ERROR, "unable to create Unicode strings for String table rehash"); |
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115 return 0; |
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116 } |
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117 } |
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118 |
0 | 119 VerifyOopClosure VerifyOopClosure::verify_oop; |
113
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120 |
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121 void VerifyOopClosure::do_oop(oop* p) { VerifyOopClosure::do_oop_work(p); } |
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122 void VerifyOopClosure::do_oop(narrowOop* p) { VerifyOopClosure::do_oop_work(p); } |