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annotate src/share/vm/c1x/c1x_Compiler.cpp @ 1941:79d04223b8a5

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Added caching for resolved types and resolved fields. This is crucial, because the local load elimination will lead to wrong results, if field equality (of two RiField objects with the same object and the same RiType) is not given. The caching makes sure that the default equals implementation is sufficient.
author Thomas Wuerthinger <wuerthinger@ssw.jku.at>
date Tue, 28 Dec 2010 18:33:26 +0100
parents 48bbaead8b6c
children 00bc9eaf0e24
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1 /*
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2 * Copyright 2000-2010 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 # include "incls/_precompiled.incl"
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26 # include "incls/_c1x_Compiler.cpp.incl"
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27
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28 C1XCompiler* C1XCompiler::_instance = NULL;
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29
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30 C1XCompiler::C1XCompiler() {
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31 _initialized = false;
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32 assert(_instance == NULL, "only one instance allowed");
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33 _instance = this;
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34 }
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35
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36 // Initialization
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37 void C1XCompiler::initialize() {
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38 if (_initialized) return;
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39 CompilerThread* THREAD = CompilerThread::current();
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40 _initialized = true;
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41 TRACE_C1X_1("C1XCompiler::initialize");
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42
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43 initialize_buffer_blob();
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44 Runtime1::initialize(THREAD->get_buffer_blob());
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45
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46 JNIEnv *env = ((JavaThread *) Thread::current())->jni_environment();
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47 jclass klass = env->FindClass("com/sun/hotspot/c1x/VMEntriesNative");
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48 if (klass == NULL) {
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49 fatal("c1x VMEntries class not found");
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50 }
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51 env->RegisterNatives(klass, VMEntries_methods, VMEntries_methods_count());
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52
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53 {
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54 VM_ENTRY_MARK;
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55 check_pending_exception("Could not register natives");
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56 }
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57
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58 c1x_compute_offsets();
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59
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60 {
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61 VM_ENTRY_MARK;
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62 HandleMark hm;
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63 for (int i = 0; i < Arguments::num_c1x_args(); ++i) {
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64 const char* arg = Arguments::c1x_args_array()[i];
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65 Handle option = java_lang_String::create_from_str(arg, THREAD);
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66 bool result = VMExits::setOption(option);
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67 if (!result) fatal("Invalid option for C1X!");
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68 }
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69 }
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70 }
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71
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72 void C1XCompiler::initialize_buffer_blob() {
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73
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74 CompilerThread* THREAD = CompilerThread::current();
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75 if (THREAD->get_buffer_blob() == NULL) {
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76 // setup CodeBuffer. Preallocate a BufferBlob of size
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77 // NMethodSizeLimit plus some extra space for constants.
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78 int code_buffer_size = Compilation::desired_max_code_buffer_size() +
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79 Compilation::desired_max_constant_size();
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80 BufferBlob* blob = BufferBlob::create("C1X temporary CodeBuffer",
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81 code_buffer_size);
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82 guarantee(blob != NULL, "must create code buffer");
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83 THREAD->set_buffer_blob(blob);
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84 }
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85 }
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86
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87 // Compilation entry point for methods
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88 void C1XCompiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci) {
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89 initialize();
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90 VM_ENTRY_MARK;
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91 ResourceMark rm;
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92 HandleMark hm;
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93
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94 initialize_buffer_blob();
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95 VmIds::initializeObjects();
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96
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97 CompilerThread::current()->set_compiling(true);
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98 methodOop method = (methodOop) target->get_oop();
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99 VMExits::compileMethod(VmIds::add<methodOop>(method), VmIds::toString<Handle>(method->name(), THREAD), entry_bci);
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100 CompilerThread::current()->set_compiling(false);
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101
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102 VmIds::cleanupLocalObjects();
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103 }
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104
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105 // Print compilation timers and statistics
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106 void C1XCompiler::print_timers() {
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107 TRACE_C1X_1("C1XCompiler::print_timers");
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108 }
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109
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110 oop C1XCompiler::get_RiType(ciType *type, KlassHandle accessor, TRAPS) {
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111 if (type->is_loaded()) {
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112 if (type->is_primitive_type()) {
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113 return VMExits::createRiTypePrimitive((int) type->basic_type(), THREAD);
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114 }
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115 KlassHandle klass = (klassOop) type->get_oop();
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116 Handle name = VmIds::toString<Handle>(klass->name(), THREAD);
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117 return createHotSpotTypeResolved(klass, name, CHECK_NULL);
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118 } else {
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b61a43cd1255 sourcecode formatting
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119 symbolOop name = ((ciKlass *) type)->name()->get_symbolOop();
1941
79d04223b8a5 Added caching for resolved types and resolved fields.
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120 return VMExits::createRiTypeUnresolved(VmIds::toString<Handle>(name, THREAD), THREAD);
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121 }
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122 }
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123
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124 oop C1XCompiler::get_RiField(ciField *field, ciInstanceKlass* accessor_klass, KlassHandle accessor, Bytecodes::Code byteCode, TRAPS) {
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125 bool will_link = field->will_link_from_vm(accessor_klass, byteCode);
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126 int offset = (field->holder()->is_loaded() && will_link) ? field->offset() : -1;
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127 Handle field_name = VmIds::toString<Handle>(field->name()->get_symbolOop(), CHECK_0);
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8cfe3537a0d3 Pointer verification stub. Two loose oop fixes in C1X C++ part. Logging which methods have been compiled.
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128 Handle field_holder = get_RiType(field->holder(), accessor, CHECK_0);
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129 Handle field_type = get_RiType(field->type(), accessor, CHECK_0);
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1ecc8f0aad00 Draft implementation of HotSpot CRI / first method compiling without exception.
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130
1ecc8f0aad00 Draft implementation of HotSpot CRI / first method compiling without exception.
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131 // TODO: implement caching
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132 return VMExits::createRiField(field_holder, field_name, field_type, offset, THREAD);
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133 }
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134
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135 oop C1XCompiler::createHotSpotTypeResolved(KlassHandle klass, Handle name, TRAPS) {
1941
79d04223b8a5 Added caching for resolved types and resolved fields.
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diff changeset
136 if (klass->c1x_mirror() != NULL) {
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137 return klass->c1x_mirror();
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138 }
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139
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140 instanceKlass::cast(HotSpotTypeResolved::klass())->initialize(CHECK_NULL);
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141 oop obj = instanceKlass::cast(HotSpotTypeResolved::klass())->allocate_instance(CHECK_NULL);
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diff changeset
142
1465
2c754f3a2722 Inlining of static final field values. Java mirror instead of VmID. Support for PrintMetrics option.
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143 HotSpotTypeResolved::set_javaMirror(obj, klass->java_mirror());
1429
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144 HotSpotTypeResolved::set_name(obj, name());
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145 HotSpotTypeResolved::set_accessFlags(obj, klass->access_flags().as_int());
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146 HotSpotTypeResolved::set_isInterface(obj, klass->is_interface());
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147 HotSpotTypeResolved::set_isInstanceClass(obj, klass->oop_is_instance());
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148
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diff changeset
149 if (klass->oop_is_javaArray()) {
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150 HotSpotTypeResolved::set_isArrayClass(obj, true);
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efba53f86c4f various fixes and enhancements
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151 HotSpotTypeResolved::set_componentType(obj, NULL);
1429
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152 } else {
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diff changeset
153 HotSpotTypeResolved::set_isArrayClass(obj, false);
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154 HotSpotTypeResolved::set_componentType(obj, NULL);
1429
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155 HotSpotTypeResolved::set_isInitialized(obj, instanceKlass::cast(klass())->is_initialized());
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156 HotSpotTypeResolved::set_instanceSize(obj, instanceKlass::cast(klass())->size_helper() * HeapWordSize);
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157 HotSpotTypeResolved::set_hasFinalizer(obj, klass->has_finalizer());
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diff changeset
158 }
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diff changeset
159
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diff changeset
160 // TODO replace these with correct values
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diff changeset
161 HotSpotTypeResolved::set_hasSubclass(obj, false);
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parents: 1428
diff changeset
162 HotSpotTypeResolved::set_hasFinalizableSubclass(obj, false);
abc670a709dc * -XX:TraceC1X=0...5 controls the native c1x tracing
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parents: 1428
diff changeset
163
1941
79d04223b8a5 Added caching for resolved types and resolved fields.
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diff changeset
164 klass->set_c1x_mirror(obj);
79d04223b8a5 Added caching for resolved types and resolved fields.
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diff changeset
165
1429
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166 return obj;
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diff changeset
167 }
abc670a709dc * -XX:TraceC1X=0...5 controls the native c1x tracing
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parents: 1428
diff changeset
168
1434
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diff changeset
169 BasicType C1XCompiler::kindToBasicType(jchar ch) {
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diff changeset
170 switch(ch) {
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diff changeset
171 case 'z': return T_BOOLEAN;
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diff changeset
172 case 'b': return T_BYTE;
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diff changeset
173 case 's': return T_SHORT;
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diff changeset
174 case 'c': return T_CHAR;
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diff changeset
175 case 'i': return T_INT;
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diff changeset
176 case 'f': return T_FLOAT;
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diff changeset
177 case 'l': return T_LONG;
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diff changeset
178 case 'd': return T_DOUBLE;
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diff changeset
179 case 'a': return T_OBJECT;
1476
1f81c0d18c75 Build also release version of VM. Fix towards making SpecJVM2008 run.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents: 1465
diff changeset
180 case 'r': return T_ADDRESS;
1434
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parents: 1433
diff changeset
181 case '-': return T_ILLEGAL;
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parents: 1433
diff changeset
182 default:
1931
48bbaead8b6c Adjustments after merge with OpenJDK repository.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents: 1483
diff changeset
183 fatal(err_msg("unexpected CiKind: %c", ch));
1434
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diff changeset
184 break;
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185 }
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diff changeset
186 }
72cfb36c6bb2 * enabled all jtt tests
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parents: 1433
diff changeset
187