Mercurial > hg > graal-compiler

comparison src/share/vm/memory/genMarkSweep.cpp @ 993:54b3b351d6f9

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Merge
author jrose
date Wed, 23 Sep 2009 23:56:15 -0700
parents 148e5441d916 8b46c4d82093
children a1423fe86a18
comparison
equal deleted inserted replaced
992:6a8ccac44f41 993:54b3b351d6f9
160 160
161 _marking_stack = new (ResourceObj::C_HEAP) GrowableArray<oop>(4000, true); 161 _marking_stack = new (ResourceObj::C_HEAP) GrowableArray<oop>(4000, true);
162 162
163 int size = SystemDictionary::number_of_classes() * 2; 163 int size = SystemDictionary::number_of_classes() * 2;
164 _revisit_klass_stack = new (ResourceObj::C_HEAP) GrowableArray<Klass*>(size, true); 164 _revisit_klass_stack = new (ResourceObj::C_HEAP) GrowableArray<Klass*>(size, true);
165 // (#klass/k)^2 for k ~ 10 appears to be a better fit, but this will have to do for
166 // now until we have had a chance to investigate a more optimal setting.
167 _revisit_mdo_stack = new (ResourceObj::C_HEAP) GrowableArray<DataLayout*>(2*size, true);
165 168
166 #ifdef VALIDATE_MARK_SWEEP 169 #ifdef VALIDATE_MARK_SWEEP
167 if (ValidateMarkSweep) { 170 if (ValidateMarkSweep) {
168 _root_refs_stack = new (ResourceObj::C_HEAP) GrowableArray<void*>(100, true); 171 _root_refs_stack = new (ResourceObj::C_HEAP) GrowableArray<void*>(100, true);
169 _other_refs_stack = new (ResourceObj::C_HEAP) GrowableArray<void*>(100, true); 172 _other_refs_stack = new (ResourceObj::C_HEAP) GrowableArray<void*>(100, true);
204 _preserved_oop_stack = NULL; 207 _preserved_oop_stack = NULL;
205 } 208 }
206 209
207 delete _marking_stack; 210 delete _marking_stack;
208 delete _revisit_klass_stack; 211 delete _revisit_klass_stack;
212 delete _revisit_mdo_stack;
209 213
210 #ifdef VALIDATE_MARK_SWEEP 214 #ifdef VALIDATE_MARK_SWEEP
211 if (ValidateMarkSweep) { 215 if (ValidateMarkSweep) {
212 delete _root_refs_stack; 216 delete _root_refs_stack;
213 delete _other_refs_stack; 217 delete _other_refs_stack;
263 267
264 // Update subklass/sibling/implementor links of live klasses 268 // Update subklass/sibling/implementor links of live klasses
265 follow_weak_klass_links(); 269 follow_weak_klass_links();
266 assert(_marking_stack->is_empty(), "just drained"); 270 assert(_marking_stack->is_empty(), "just drained");
267 271
272 // Visit memoized MDO's and clear any unmarked weak refs
273 follow_mdo_weak_refs();
274 assert(_marking_stack->is_empty(), "just drained");
275
268 // Visit symbol and interned string tables and delete unmarked oops 276 // Visit symbol and interned string tables and delete unmarked oops
269 SymbolTable::unlink(&is_alive); 277 SymbolTable::unlink(&is_alive);
270 StringTable::unlink(&is_alive); 278 StringTable::unlink(&is_alive);
271 279
272 assert(_marking_stack->is_empty(), "stack should be empty by now"); 280 assert(_marking_stack->is_empty(), "stack should be empty by now");