Mercurial > hg > graal-jvmci-8
annotate src/share/vm/graal/graalCompiler.cpp @ 9126:bc26f978b0ce
HotSpotResolvedObjectType: implement hasFinalizeSubclass() correctly
don't use the (wrong) cached value, but ask the runtime on each request.
Fixes regression on xml.* benchmarks @ specjvm2008. The problem was:
After the constructor of Object was deoptimized due to an assumption violation,
it was recompiled again after some time. However, on recompilation, the value
of hasFinalizeSubclass for the class was not updated and it was compiled again
with a, now wrong, assumption, which then triggers deoptimization again.
This was repeated until it hit the recompilation limit (defined by
PerMethodRecompilationCutoff), and therefore only executed by the interpreter
from now on, causing the performance regression.
author | Bernhard Urban <bernhard.urban@jku.at> |
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date | Mon, 15 Apr 2013 19:54:58 +0200 |
parents | b78686983a75 |
children | 147162b27799 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2011, Oracle and/or its affiliates. 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 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. |
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22 */ |
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23 |
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24 #include "precompiled.hpp" |
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25 #include "memory/oopFactory.hpp" |
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26 #include "runtime/javaCalls.hpp" |
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27 #include "graal/graalCompiler.hpp" |
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28 #include "graal/graalJavaAccess.hpp" |
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29 #include "graal/graalVMToCompiler.hpp" |
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30 #include "graal/graalCompilerToVM.hpp" |
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31 #include "graal/graalEnv.hpp" |
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32 #include "graal/graalRuntime.hpp" |
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33 #include "runtime/arguments.hpp" |
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34 #include "runtime/compilationPolicy.hpp" |
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35 |
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36 GraalCompiler* GraalCompiler::_instance = NULL; |
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37 |
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38 GraalCompiler::GraalCompiler() : AbstractCompiler(graal) { |
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39 _initialized = false; |
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40 assert(_instance == NULL, "only one instance allowed"); |
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41 _instance = this; |
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42 } |
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43 |
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44 // Initialization |
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45 void GraalCompiler::initialize() { |
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46 |
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47 ThreadToNativeFromVM trans(JavaThread::current()); |
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48 JavaThread* THREAD = JavaThread::current(); |
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49 TRACE_graal_1("GraalCompiler::initialize"); |
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50 |
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51 uintptr_t heap_end = (uintptr_t) Universe::heap()->reserved_region().end(); |
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52 uintptr_t allocation_end = heap_end + ((uintptr_t)16) * 1024 * 1024 * 1024; |
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53 guarantee(heap_end < allocation_end, "heap end too close to end of address space (might lead to erroneous TLAB allocations)"); |
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54 NOT_LP64(error("check TLAB allocation code for address space conflicts")); |
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55 |
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56 _deopted_leaf_graph_count = 0; |
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57 |
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58 initialize_buffer_blob(); |
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59 GraalRuntime::initialize(THREAD->get_buffer_blob()); |
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60 |
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61 JNIEnv *env = ((JavaThread *) Thread::current())->jni_environment(); |
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62 jclass klass = env->FindClass("com/oracle/graal/hotspot/bridge/CompilerToVMImpl"); |
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63 if (klass == NULL) { |
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64 tty->print_cr("graal CompilerToVMImpl class not found"); |
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65 vm_abort(false); |
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66 } |
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67 env->RegisterNatives(klass, CompilerToVM_methods, CompilerToVM_methods_count()); |
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68 |
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69 ResourceMark rm; |
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70 HandleMark hm; |
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71 { |
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72 GRAAL_VM_ENTRY_MARK; |
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73 check_pending_exception("Could not register natives"); |
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74 } |
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75 |
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76 graal_compute_offsets(); |
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77 |
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78 { |
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79 GRAAL_VM_ENTRY_MARK; |
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80 HandleMark hm; |
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81 for (int i = 0; i < Arguments::num_graal_args(); ++i) { |
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82 const char* arg = Arguments::graal_args_array()[i]; |
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83 Handle option = java_lang_String::create_from_str(arg, THREAD); |
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84 jboolean result = VMToCompiler::setOption(option); |
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85 if (!result) { |
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86 tty->print_cr("Invalid option for graal: -G:%s", arg); |
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87 vm_abort(false); |
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88 } |
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89 } |
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90 if (UseCompiler) { |
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91 VMToCompiler::startCompiler(); |
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92 _initialized = true; |
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93 if (BootstrapGraal) { |
9108 | 94 // We turn off CompileTheWorld and complete the VM startup so that |
95 // Graal can be compiled by C1/C2 when we do a CTW. | |
96 NOT_PRODUCT(CompileTheWorld = false); | |
97 CompilationPolicy::completed_vm_startup(); | |
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98 VMToCompiler::bootstrap(); |
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99 } |
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100 } |
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101 } |
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102 } |
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103 |
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104 void GraalCompiler::deopt_leaf_graph(jlong leaf_graph_id) { |
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105 assert(leaf_graph_id != -1, "unexpected leaf graph id"); |
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106 |
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107 if (_deopted_leaf_graph_count < LEAF_GRAPH_ARRAY_SIZE) { |
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108 MutexLockerEx y(GraalDeoptLeafGraphIds_lock, Mutex::_no_safepoint_check_flag); |
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109 if (_deopted_leaf_graph_count < LEAF_GRAPH_ARRAY_SIZE) { |
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110 _deopted_leaf_graphs[_deopted_leaf_graph_count++] = leaf_graph_id; |
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111 } |
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112 } |
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113 } |
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114 |
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115 oop GraalCompiler::dump_deopted_leaf_graphs(TRAPS) { |
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116 if (_deopted_leaf_graph_count == 0) { |
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117 return NULL; |
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118 } |
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119 jlong* elements; |
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120 int length; |
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121 { |
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122 MutexLockerEx y(GraalDeoptLeafGraphIds_lock, Mutex::_no_safepoint_check_flag); |
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123 if (_deopted_leaf_graph_count == 0) { |
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124 return NULL; |
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125 } |
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126 if (_deopted_leaf_graph_count == LEAF_GRAPH_ARRAY_SIZE) { |
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127 length = 0; |
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128 } else { |
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129 length = _deopted_leaf_graph_count; |
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130 } |
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131 elements = new jlong[length]; |
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132 for (int i = 0; i < length; i++) { |
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133 elements[i] = _deopted_leaf_graphs[i]; |
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134 } |
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135 _deopted_leaf_graph_count = 0; |
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136 } |
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137 typeArrayOop array = oopFactory::new_longArray(length, CHECK_NULL); |
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138 for (int i = 0; i < length; i++) { |
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139 array->long_at_put(i, elements[i]); |
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140 } |
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141 delete elements; |
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142 return array; |
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143 } |
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144 |
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145 void GraalCompiler::initialize_buffer_blob() { |
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146 |
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147 JavaThread* THREAD = JavaThread::current(); |
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148 if (THREAD->get_buffer_blob() == NULL) { |
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149 BufferBlob* blob = BufferBlob::create("Graal thread-local CodeBuffer", GraalNMethodSizeLimit); |
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150 guarantee(blob != NULL, "must create code buffer"); |
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151 THREAD->set_buffer_blob(blob); |
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152 } |
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153 } |
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154 |
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155 void GraalCompiler::compile_method(methodHandle method, int entry_bci, jboolean blocking) { |
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156 GRAAL_EXCEPTION_CONTEXT |
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157 if (!_initialized) { |
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158 method->clear_queued_for_compilation(); |
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159 method->invocation_counter()->reset(); |
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160 method->backedge_counter()->reset(); |
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161 return; |
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162 } |
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163 |
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164 assert(_initialized, "must already be initialized"); |
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165 ResourceMark rm; |
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166 JavaThread::current()->set_is_compiling(true); |
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167 Handle holder = GraalCompiler::createHotSpotResolvedObjectType(method, CHECK); |
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168 jboolean success = VMToCompiler::compileMethod(method(), holder, entry_bci, blocking, method->graal_priority()); |
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169 JavaThread::current()->set_is_compiling(false); |
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170 if (success != JNI_TRUE) { |
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171 method->clear_queued_for_compilation(); |
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172 CompilationPolicy::policy()->delay_compilation(method()); |
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173 } |
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174 } |
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175 |
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176 // Compilation entry point for methods |
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177 void GraalCompiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci) { |
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178 ShouldNotReachHere(); |
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179 } |
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180 |
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181 void GraalCompiler::exit() { |
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182 if (_initialized) { |
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183 VMToCompiler::shutdownCompiler(); |
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184 } |
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185 } |
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186 |
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187 // Print compilation timers and statistics |
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188 void GraalCompiler::print_timers() { |
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189 TRACE_graal_1("GraalCompiler::print_timers"); |
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190 } |
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191 |
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192 Handle GraalCompiler::get_JavaType(Symbol* klass_name, TRAPS) { |
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193 return VMToCompiler::createUnresolvedJavaType(java_lang_String::create_from_symbol(klass_name, THREAD), THREAD); |
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194 } |
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195 |
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196 Handle GraalCompiler::get_JavaTypeFromSignature(Symbol* signature, KlassHandle loading_klass, TRAPS) { |
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197 |
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198 BasicType field_type = FieldType::basic_type(signature); |
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199 // If the field is a pointer type, get the klass of the |
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200 // field. |
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201 if (field_type == T_OBJECT || field_type == T_ARRAY) { |
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202 KlassHandle handle = GraalEnv::get_klass_by_name(loading_klass, signature, false); |
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203 if (handle.is_null()) { |
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204 return get_JavaType(signature, CHECK_NULL); |
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205 } else { |
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206 return get_JavaType(handle, CHECK_NULL); |
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207 } |
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208 } else { |
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209 return VMToCompiler::createPrimitiveJavaType(field_type, CHECK_NULL); |
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210 } |
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211 } |
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212 |
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213 Handle GraalCompiler::get_JavaType(constantPoolHandle cp, int index, KlassHandle loading_klass, TRAPS) { |
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214 bool is_accessible = false; |
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215 |
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216 KlassHandle klass = GraalEnv::get_klass_by_index(cp, index, is_accessible, loading_klass); |
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217 oop catch_class = NULL; |
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218 if (klass.is_null()) { |
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219 Symbol* klass_name = NULL; |
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220 { |
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221 // We have to lock the cpool to keep the oop from being resolved |
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222 // while we are accessing it. But we must release the lock before |
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223 // calling up into Java. |
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224 MonitorLockerEx ml(cp->lock()); |
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225 constantTag tag = cp->tag_at(index); |
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226 if (tag.is_klass()) { |
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227 // The klass has been inserted into the constant pool |
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228 // very recently. |
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229 return GraalCompiler::get_JavaType(cp->resolved_klass_at(index), CHECK_NULL); |
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230 } else if (tag.is_symbol()) { |
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231 klass_name = cp->symbol_at(index); |
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232 } else { |
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233 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag"); |
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234 klass_name = cp->unresolved_klass_at(index); |
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235 } |
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236 } |
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237 return GraalCompiler::get_JavaType(klass_name, CHECK_NULL); |
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238 } else { |
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239 return GraalCompiler::get_JavaType(klass, CHECK_NULL); |
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240 } |
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241 } |
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242 |
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243 Handle GraalCompiler::get_JavaTypeFromClass(Handle java_class, TRAPS) { |
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244 oop graal_mirror = java_lang_Class::graal_mirror(java_class()); |
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245 if (graal_mirror != NULL) { |
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246 return graal_mirror; |
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247 } |
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248 |
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249 if (java_lang_Class::is_primitive(java_class())) { |
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250 BasicType basicType = java_lang_Class::primitive_type(java_class()); |
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251 return VMToCompiler::createPrimitiveJavaType((int) basicType, THREAD); |
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252 } else { |
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253 KlassHandle klass = java_lang_Class::as_Klass(java_class()); |
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254 Handle name = java_lang_String::create_from_symbol(klass->name(), CHECK_NULL); |
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255 return GraalCompiler::createHotSpotResolvedObjectType(klass, name, CHECK_NULL); |
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256 } |
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257 } |
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258 |
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259 Handle GraalCompiler::get_JavaType(KlassHandle klass, TRAPS) { |
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260 Handle name = java_lang_String::create_from_symbol(klass->name(), THREAD); |
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261 return createHotSpotResolvedObjectType(klass, name, CHECK_NULL); |
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262 } |
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263 |
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264 Handle GraalCompiler::get_JavaField(int offset, int flags, Symbol* field_name, Handle field_holder, Handle field_type, TRAPS) { |
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265 Handle name = java_lang_String::create_from_symbol(field_name, CHECK_NULL); |
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266 return VMToCompiler::createJavaField(field_holder, name, field_type, offset, flags, false, CHECK_NULL); |
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267 } |
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268 |
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269 Handle GraalCompiler::createHotSpotResolvedObjectType(methodHandle method, TRAPS) { |
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270 KlassHandle klass = method->method_holder(); |
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271 oop java_class = klass->java_mirror(); |
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272 oop graal_mirror = java_lang_Class::graal_mirror(java_class); |
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273 if (graal_mirror != NULL) { |
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274 assert(graal_mirror->is_a(HotSpotResolvedObjectType::klass()), "unexpected class..."); |
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275 return graal_mirror; |
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276 } |
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277 Handle name = java_lang_String::create_from_symbol(klass->name(), CHECK_NULL); |
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278 return GraalCompiler::createHotSpotResolvedObjectType(klass, name, CHECK_NULL); |
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279 } |
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280 |
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281 Handle GraalCompiler::createHotSpotResolvedObjectType(KlassHandle klass, Handle name, TRAPS) { |
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282 oop java_class = klass->java_mirror(); |
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283 oop graal_mirror = java_lang_Class::graal_mirror(java_class); |
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284 if (graal_mirror != NULL) { |
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285 assert(graal_mirror->is_a(HotSpotResolvedObjectType::klass()), "unexpected class..."); |
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286 return graal_mirror; |
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287 } |
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288 |
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289 Handle simpleName = name; |
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290 if (klass->oop_is_instance()) { |
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291 ResourceMark rm; |
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292 InstanceKlass* ik = (InstanceKlass*) klass(); |
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293 name = java_lang_String::create_from_str(ik->signature_name(), CHECK_NULL); |
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294 } |
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295 |
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296 int sizeOrSpecies; |
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297 if (klass->is_interface()) { |
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298 sizeOrSpecies = (int) 0x80000000; // see HotSpotResolvedObjectType.INTERFACE_SPECIES_VALUE |
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299 } else if (klass->oop_is_array()) { |
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300 sizeOrSpecies = (int) 0x7fffffff; // see HotSpotResolvedObjectType.ARRAY_SPECIES_VALUE |
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301 } else { |
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302 sizeOrSpecies = InstanceKlass::cast(klass())->size_helper() * HeapWordSize; |
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303 if (!InstanceKlass::cast(klass())->can_be_fastpath_allocated()) { |
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304 sizeOrSpecies = -sizeOrSpecies; |
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305 } |
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306 } |
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307 |
9126
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HotSpotResolvedObjectType: implement hasFinalizeSubclass() correctly
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308 return VMToCompiler::createResolvedJavaType(klass(), name, simpleName, java_class, sizeOrSpecies, CHECK_NULL); |
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309 } |
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310 |
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75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
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311 BasicType GraalCompiler::kindToBasicType(jchar ch) { |
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312 switch(ch) { |
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313 case 'z': return T_BOOLEAN; |
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314 case 'b': return T_BYTE; |
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315 case 's': return T_SHORT; |
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316 case 'c': return T_CHAR; |
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317 case 'i': return T_INT; |
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318 case 'f': return T_FLOAT; |
3592
ff472e09af46
Fixed long signature char.
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319 case 'j': return T_LONG; |
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320 case 'd': return T_DOUBLE; |
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321 case 'a': return T_OBJECT; |
1476
1f81c0d18c75
Build also release version of VM. Fix towards making SpecJVM2008 run.
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322 case 'r': return T_ADDRESS; |
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323 case '-': return T_ILLEGAL; |
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324 default: |
5554
70f715dfbb41
Bring Java renamings and restructurings to the C++ part.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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325 fatal(err_msg("unexpected Kind: %c", ch)); |
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326 break; |
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327 } |
2215
999f8086cc4f
More changes to make it compile and work on win64.
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328 return T_ILLEGAL; |
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329 } |