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annotate src/share/vm/c1x/c1x_Compiler.cpp @ 1449:8cfe3537a0d3

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Pointer verification stub. Two loose oop fixes in C1X C++ part. Logging which methods have been compiled.
author Thomas Wuerthinger <wuerthinger@ssw.jku.at>
date Thu, 11 Nov 2010 14:09:37 +0100
parents 1b7acf75f900
children 9b22e3e5df8e
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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 Thread* THREAD = Thread::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 JNIEnv *env = ((JavaThread *) Thread::current())->jni_environment();
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44 jclass klass = env->FindClass("com/sun/hotspot/c1x/VMEntriesNative");
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45 assert(klass != NULL, "c1x VMEntries class not found");
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46 env->RegisterNatives(klass, VMEntries_methods, VMEntries_methods_count());
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47
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48 check_pending_exception("Could not register natives");
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49
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50 c1x_compute_offsets();
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51
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52 {
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53 VM_ENTRY_MARK;
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54 HandleMark hm;
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55 for (int i = 0; i < Arguments::num_c1x_args(); ++i) {
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56 const char* arg = Arguments::c1x_args_array()[i];
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57 Handle option = java_lang_String::create_from_str(arg, THREAD);
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58 bool result = VMExits::setOption(option);
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59 if (!result) fatal("Invalid option for C1X!");
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60 }
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61 }
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62 }
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63
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64 // Compilation entry point for methods
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65 void C1XCompiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci) {
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66 initialize();
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67 VM_ENTRY_MARK;
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68 ResourceMark rm;
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69 HandleMark hm;
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70
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71 VmIds::initializeObjects();
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72
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73 CompilerThread::current()->set_compiling(true);
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74 methodOop method = (methodOop) target->get_oop();
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75 VMExits::compileMethod(VmIds::add<methodOop>(method), VmIds::toString<Handle>(method->name(), THREAD), entry_bci);
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76 CompilerThread::current()->set_compiling(false);
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77
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78 VmIds::cleanupLocalObjects();
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79 }
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80
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81 // Print compilation timers and statistics
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82 void C1XCompiler::print_timers() {
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83 TRACE_C1X_1("C1XCompiler::print_timers");
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84 }
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85
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86 oop C1XCompiler::get_RiType(ciType *type, klassOop accessor, TRAPS) {
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87 if (type->is_loaded()) {
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88 if (type->is_primitive_type()) {
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89 return VMExits::createRiTypePrimitive((int) type->basic_type(), THREAD);
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90 }
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91 KlassHandle klass = (klassOop) type->get_oop();
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92 Handle name = VmIds::toString<Handle>(klass->name(), THREAD);
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93 return createHotSpotTypeResolved(klass, name, CHECK_NULL);
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94 } else {
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95 symbolOop name = ((ciKlass *) type)->name()->get_symbolOop();
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96 return VMExits::createRiTypeUnresolved(VmIds::toString<Handle>(name, THREAD), VmIds::add<klassOop>(accessor), THREAD);
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97 }
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98 }
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99
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100 oop C1XCompiler::get_RiField(ciField *field, klassOop accessor, TRAPS) {
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101 Handle field_holder = get_RiType(field->holder(), accessor, CHECK_0);
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102 Handle field_type = get_RiType(field->type(), accessor, CHECK_0);
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103 Handle field_name = VmIds::toString<Handle>(field->name()->get_symbolOop(), CHECK_0);
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104 int offset = field->holder()->is_loaded() ? field->offset() : -1;
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105
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106 // TODO: implement caching
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107 return VMExits::createRiField(field_holder, field_name, field_type, offset, THREAD);
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108 }
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109
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110 oop C1XCompiler::createHotSpotTypeResolved(KlassHandle klass, Handle name, TRAPS) {
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111 instanceKlass::cast(HotSpotTypeResolved::klass())->initialize(CHECK_NULL);
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112 oop obj = instanceKlass::cast(HotSpotTypeResolved::klass())->allocate_instance(CHECK_NULL);
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113
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114 HotSpotTypeResolved::set_vmId(obj, VmIds::add(klass, VmIds::CLASS));
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115 HotSpotTypeResolved::set_javaMirrorVmId(obj, VmIds::add(klass->java_mirror(), VmIds::CONSTANT));
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116 HotSpotTypeResolved::set_name(obj, name());
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117 HotSpotTypeResolved::set_accessFlags(obj, klass->access_flags().as_int());
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118 HotSpotTypeResolved::set_isInterface(obj, klass->is_interface());
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119 HotSpotTypeResolved::set_isInstanceClass(obj, klass->oop_is_instance());
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120
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121 if (klass->oop_is_javaArray()) {
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122 HotSpotTypeResolved::set_isArrayClass(obj, true);
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123 HotSpotTypeResolved::set_componentType(obj, NULL);
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124 } else {
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125 HotSpotTypeResolved::set_isArrayClass(obj, false);
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126 HotSpotTypeResolved::set_componentType(obj, NULL);
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127 HotSpotTypeResolved::set_isInitialized(obj, instanceKlass::cast(klass())->is_initialized());
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128 HotSpotTypeResolved::set_instanceSize(obj, instanceKlass::cast(klass())->size_helper() * HeapWordSize);
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129 HotSpotTypeResolved::set_hasFinalizer(obj, klass->has_finalizer());
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130 }
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131
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132 // TODO replace these with correct values
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133 HotSpotTypeResolved::set_hasSubclass(obj, false);
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134 HotSpotTypeResolved::set_hasFinalizableSubclass(obj, false);
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135
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136 return obj;
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137 }
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138
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139 BasicType C1XCompiler::kindToBasicType(jchar ch) {
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140 switch(ch) {
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141 case 'z': return T_BOOLEAN;
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142 case 'b': return T_BYTE;
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143 case 's': return T_SHORT;
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144 case 'c': return T_CHAR;
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145 case 'i': return T_INT;
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146 case 'f': return T_FLOAT;
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147 case 'l': return T_LONG;
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148 case 'd': return T_DOUBLE;
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149 case 'a': return T_OBJECT;
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150 case '-': return T_ILLEGAL;
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151 default:
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152 fatal1("unexpected CiKind: %c", ch);
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153 break;
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154 }
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155 }
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156