Mercurial > hg > truffle
annotate src/share/vm/ci/ciType.cpp @ 8733:9def4075da6d
8008079: G1: Add nextObject routine to CMBitMapRO and replace nextWord
Summary: Update the task local finger to the start of the next object when marking aborts, in order to avoid the redundant scanning of all 0's when the marking task restarts, if otherwise updating to the next word. In addition, reuse the routine nextObject() in routine iterate().
Reviewed-by: johnc, ysr
Contributed-by: tamao <tao.mao@oracle.com>
| author | tamao |
|---|---|
| date | Tue, 05 Mar 2013 15:36:56 -0800 |
| parents | f1de9dbc914e |
| children | de6a9e811145 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
2 * Copyright (c) 2000, 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1142
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1142
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1142
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
26 #include "ci/ciEnv.hpp" |
| 1972 | 27 #include "ci/ciType.hpp" |
| 28 #include "ci/ciUtilities.hpp" | |
| 29 #include "classfile/systemDictionary.hpp" | |
| 30 #include "oops/oop.inline.hpp" | |
| 0 | 31 |
| 32 ciType* ciType::_basic_types[T_CONFLICT+1]; | |
| 33 | |
| 34 // ciType | |
| 35 // | |
| 36 // This class represents either a class (T_OBJECT), array (T_ARRAY), | |
| 37 // or one of the primitive types such as T_INT. | |
| 38 | |
| 39 // ------------------------------------------------------------------ | |
| 40 // ciType::ciType | |
| 41 // | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
42 ciType::ciType(BasicType basic_type) : ciMetadata() { |
| 0 | 43 assert(basic_type >= T_BOOLEAN && basic_type <= T_CONFLICT, "range check"); |
| 44 _basic_type = basic_type; | |
| 45 } | |
| 46 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
47 ciType::ciType(KlassHandle k) : ciMetadata(k()) { |
| 6983 | 48 _basic_type = k()->oop_is_array() ? T_ARRAY : T_OBJECT; |
| 0 | 49 } |
| 50 | |
| 51 | |
| 52 // ------------------------------------------------------------------ | |
| 53 // ciType::is_subtype_of | |
| 54 // | |
| 55 bool ciType::is_subtype_of(ciType* type) { | |
| 56 if (this == type) return true; | |
| 57 if (is_klass() && type->is_klass()) | |
| 58 return this->as_klass()->is_subtype_of(type->as_klass()); | |
| 59 return false; | |
| 60 } | |
| 61 | |
| 62 // ------------------------------------------------------------------ | |
|
7604
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
63 // ciType::name |
|
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
64 // |
|
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
65 // Return the name of this type |
|
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
66 const char* ciType::name() { |
|
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
67 if (is_primitive_type()) { |
|
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
68 return type2name(basic_type()); |
|
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
69 } else { |
|
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
70 assert(is_klass(), "must be"); |
|
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
71 return as_klass()->name()->as_utf8(); |
|
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
72 } |
|
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
73 } |
|
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
74 |
|
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
75 // ------------------------------------------------------------------ |
| 0 | 76 // ciType::print_impl |
| 77 // | |
| 78 // Implementation of the print method. | |
| 79 void ciType::print_impl(outputStream* st) { | |
| 80 st->print(" type="); | |
| 81 print_name_on(st); | |
| 82 } | |
| 83 | |
| 84 // ------------------------------------------------------------------ | |
| 85 // ciType::print_name | |
| 86 // | |
| 87 // Print the name of this type | |
| 88 void ciType::print_name_on(outputStream* st) { | |
|
7604
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
89 ResourceMark rm; |
|
f1de9dbc914e
8006109: test/java/util/AbstractSequentialList/AddAll.java fails: assert(rtype == ctype) failed: mismatched return types
twisti
parents:
6983
diff
changeset
|
90 st->print(name()); |
| 0 | 91 } |
| 92 | |
| 93 | |
| 94 | |
| 95 // ------------------------------------------------------------------ | |
| 96 // ciType::java_mirror | |
| 97 // | |
| 98 ciInstance* ciType::java_mirror() { | |
| 99 VM_ENTRY_MARK; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
100 return CURRENT_THREAD_ENV->get_instance(Universe::java_mirror(basic_type())); |
| 0 | 101 } |
| 102 | |
| 103 // ------------------------------------------------------------------ | |
| 104 // ciType::box_klass | |
| 105 // | |
| 106 ciKlass* ciType::box_klass() { | |
| 107 if (!is_primitive_type()) return this->as_klass(); // reference types are "self boxing" | |
| 108 | |
| 109 // Void is "boxed" with a null. | |
| 110 if (basic_type() == T_VOID) return NULL; | |
| 111 | |
| 112 VM_ENTRY_MARK; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
113 return CURRENT_THREAD_ENV->get_instance_klass(SystemDictionary::box_klass(basic_type())); |
| 0 | 114 } |
| 115 | |
| 116 | |
| 117 // ------------------------------------------------------------------ | |
| 118 // ciType::make | |
| 119 // | |
| 120 // Produce the ciType for a given primitive BasicType. | |
| 121 // As a bonus, produce the right reference type for T_OBJECT. | |
| 122 // Does not work on T_ARRAY. | |
| 123 ciType* ciType::make(BasicType t) { | |
| 124 // short, etc. | |
| 125 // Note: Bare T_ADDRESS means a raw pointer type, not a return_address. | |
| 126 assert((uint)t < T_CONFLICT+1, "range check"); | |
| 1142 | 127 if (t == T_OBJECT) return ciEnv::_Object_klass; // java/lang/Object |
| 0 | 128 assert(_basic_types[t] != NULL, "domain check"); |
| 129 return _basic_types[t]; | |
| 130 } | |
| 131 | |
| 132 // ciReturnAddress | |
| 133 // | |
| 134 // This class represents the type of a specific return address in the | |
| 135 // bytecodes. | |
| 136 | |
| 137 // ------------------------------------------------------------------ | |
| 138 // ciReturnAddress::ciReturnAddress | |
| 139 // | |
| 140 ciReturnAddress::ciReturnAddress(int bci) : ciType(T_ADDRESS) { | |
| 141 assert(0 <= bci, "bci cannot be negative"); | |
| 142 _bci = bci; | |
| 143 } | |
| 144 | |
| 145 // ------------------------------------------------------------------ | |
| 146 // ciReturnAddress::print_impl | |
| 147 // | |
| 148 // Implementation of the print method. | |
| 149 void ciReturnAddress::print_impl(outputStream* st) { | |
| 150 st->print(" bci=%d", _bci); | |
| 151 } | |
| 152 | |
| 153 // ------------------------------------------------------------------ | |
| 154 // ciReturnAddress::make | |
| 155 ciReturnAddress* ciReturnAddress::make(int bci) { | |
| 156 GUARDED_VM_ENTRY(return CURRENT_ENV->get_return_address(bci);) | |
| 157 } |