Mercurial > hg > graal-compiler
annotate src/share/vm/memory/oopFactory.hpp @ 1711:a6bff45449bc
6973570: OrderAccess::storestore() scales poorly on multi-socket x64 and sparc: cache-line ping-ponging
Summary: volatile store to static variable removed in favour of a volatile store to stack to avoid excessive cache coherency traffic; verified that the volatile store is not elided by any of our current compilers.
Reviewed-by: dholmes, dice, jcoomes, kvn
author | ysr |
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date | Tue, 10 Aug 2010 14:53:35 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2009, 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 | |
25 // oopFactory is a class used for creating new objects. | |
26 | |
27 class vframeArray; | |
28 | |
29 class oopFactory: AllStatic { | |
30 public: | |
31 // Basic type leaf array allocation | |
32 static typeArrayOop new_boolArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::boolArrayKlassObj ())->allocate(length, CHECK_NULL); } | |
33 static typeArrayOop new_charArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::charArrayKlassObj ())->allocate(length, CHECK_NULL); } | |
34 static typeArrayOop new_singleArray(int length, TRAPS) { return typeArrayKlass::cast(Universe::singleArrayKlassObj())->allocate(length, CHECK_NULL); } | |
35 static typeArrayOop new_doubleArray(int length, TRAPS) { return typeArrayKlass::cast(Universe::doubleArrayKlassObj())->allocate(length, CHECK_NULL); } | |
36 static typeArrayOop new_byteArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::byteArrayKlassObj ())->allocate(length, CHECK_NULL); } | |
37 static typeArrayOop new_shortArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::shortArrayKlassObj ())->allocate(length, CHECK_NULL); } | |
38 static typeArrayOop new_intArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::intArrayKlassObj ())->allocate(length, CHECK_NULL); } | |
39 static typeArrayOop new_longArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::longArrayKlassObj ())->allocate(length, CHECK_NULL); } | |
40 | |
41 // create java.lang.Object[] | |
42 static objArrayOop new_objectArray(int length, TRAPS) { | |
43 return objArrayKlass:: | |
44 cast(Universe::objectArrayKlassObj())->allocate(length, CHECK_NULL); | |
45 } | |
46 | |
47 static typeArrayOop new_charArray (const char* utf8_str, TRAPS); | |
48 static typeArrayOop new_permanent_charArray (int length, TRAPS); | |
49 static typeArrayOop new_permanent_byteArray (int length, TRAPS); // used for class file structures | |
50 static typeArrayOop new_permanent_shortArray(int length, TRAPS); // used for class file structures | |
51 static typeArrayOop new_permanent_intArray (int length, TRAPS); // used for class file structures | |
52 | |
53 static typeArrayOop new_typeArray(BasicType type, int length, TRAPS); | |
54 | |
55 // Symbols | |
56 static symbolOop new_symbol(const char* utf8_buffer, int length, TRAPS) { | |
57 assert(utf8_buffer != NULL, "just checking"); | |
58 return SymbolTable::lookup(utf8_buffer, length, CHECK_NULL); | |
59 } | |
60 static void new_symbols(constantPoolHandle cp, int names_count, | |
61 const char** name, int* lengths, | |
62 int* cp_indices, unsigned int* hashValues, | |
63 TRAPS) { | |
64 SymbolTable::add(cp, names_count, name, lengths, cp_indices, | |
65 hashValues, CHECK); | |
66 } | |
67 | |
68 static symbolOop new_symbol(char* name, TRAPS) { return new_symbol(name, (int)strlen(name), CHECK_NULL); } | |
69 static symbolOop new_symbol(const char* name, TRAPS) { return new_symbol(name, (int)strlen(name), CHECK_NULL); } | |
70 static symbolOop new_symbol(symbolHandle sym, int begin, int end, TRAPS) { | |
71 assert(begin <= end && end <= sym->utf8_length(), "just checking"); | |
72 return SymbolTable::lookup(sym, begin, end, CHECK_NULL); | |
73 } | |
74 | |
75 // Create symbols as above but return a handle | |
76 static symbolHandle new_symbol_handle(const char* name, int length, TRAPS) { | |
77 symbolOop sym = new_symbol(name, length, THREAD); | |
78 return symbolHandle(THREAD, sym); | |
79 } | |
80 static symbolHandle new_symbol_handle(char* name, TRAPS) { return new_symbol_handle(name, (int)strlen(name), CHECK_(symbolHandle())); } | |
81 static symbolHandle new_symbol_handle(const char* name, TRAPS) { return new_symbol_handle(name, (int)strlen(name), CHECK_(symbolHandle())); } | |
82 | |
83 // Constant pools | |
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84 static constantPoolOop new_constantPool (int length, |
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85 bool is_conc_safe, |
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86 TRAPS); |
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87 static constantPoolCacheOop new_constantPoolCache(int length, |
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88 bool is_conc_safe, |
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89 TRAPS); |
0 | 90 |
91 // Instance classes | |
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92 static klassOop new_instanceKlass(int vtable_len, int itable_len, |
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93 int static_field_size, |
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94 unsigned int nonstatic_oop_map_count, |
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95 ReferenceType rt, TRAPS); |
0 | 96 |
97 // Methods | |
98 private: | |
99 static constMethodOop new_constMethod(int byte_code_size, | |
100 int compressed_line_number_size, | |
101 int localvariable_table_length, | |
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102 int checked_exceptions_length, |
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103 bool is_conc_safe, |
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104 TRAPS); |
0 | 105 public: |
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106 // Set is_conc_safe for methods which cannot safely be |
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107 // processed by concurrent GC even after the return of |
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108 // the method. |
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109 static methodOop new_method(int byte_code_size, |
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110 AccessFlags access_flags, |
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111 int compressed_line_number_size, |
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112 int localvariable_table_length, |
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113 int checked_exceptions_length, |
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114 bool is_conc_safe, |
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115 TRAPS); |
0 | 116 |
117 // Method Data containers | |
118 static methodDataOop new_methodData(methodHandle method, TRAPS); | |
119 | |
120 // System object arrays | |
121 static objArrayOop new_system_objArray(int length, TRAPS); | |
122 | |
123 // Regular object arrays | |
124 static objArrayOop new_objArray(klassOop klass, int length, TRAPS); | |
125 | |
126 // For compiled ICs | |
127 static compiledICHolderOop new_compiledICHolder(methodHandle method, KlassHandle klass, TRAPS); | |
128 }; |