Mercurial > hg > graal-jvmci-8
comparison src/share/vm/memory/genMarkSweep.cpp @ 12033:bd902affe102
8023021: Unnecessary clearing of the card table introduced by the fix for JDK-8023013
Reviewed-by: stefank, ehelin
author | brutisso |
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date | Thu, 15 Aug 2013 10:05:50 +0200 |
parents | 330dfb0476f4 |
children | 870aedf4ba4f 0982ec23da03 |
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12032:5d9995d16b26 | 12033:bd902affe102 |
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119 for (int i = 0; all_empty && i < level; i++) { | 119 for (int i = 0; all_empty && i < level; i++) { |
120 Generation* g = gch->get_gen(i); | 120 Generation* g = gch->get_gen(i); |
121 all_empty = all_empty && gch->get_gen(i)->used() == 0; | 121 all_empty = all_empty && gch->get_gen(i)->used() == 0; |
122 } | 122 } |
123 GenRemSet* rs = gch->rem_set(); | 123 GenRemSet* rs = gch->rem_set(); |
124 Generation* old_gen = gch->get_gen(level); | |
124 // Clear/invalidate below make use of the "prev_used_regions" saved earlier. | 125 // Clear/invalidate below make use of the "prev_used_regions" saved earlier. |
125 if (all_empty) { | 126 if (all_empty) { |
126 // We've evacuated all generations below us. | 127 // We've evacuated all generations below us. |
127 Generation* g = gch->get_gen(level); | 128 rs->clear_into_younger(old_gen); |
128 rs->clear_into_younger(g); | |
129 } else { | 129 } else { |
130 // Invalidate the cards corresponding to the currently used | 130 // Invalidate the cards corresponding to the currently used |
131 // region and clear those corresponding to the evacuated region | 131 // region and clear those corresponding to the evacuated region. |
132 // of all generations just collected. | 132 rs->invalidate_or_clear(old_gen); |
133 rs->invalidate_or_clear(gch->get_gen(1)); | |
134 rs->invalidate_or_clear(gch->get_gen(0)); | |
135 } | 133 } |
136 | 134 |
137 Threads::gc_epilogue(); | 135 Threads::gc_epilogue(); |
138 CodeCache::gc_epilogue(); | 136 CodeCache::gc_epilogue(); |
139 JvmtiExport::gc_epilogue(); | 137 JvmtiExport::gc_epilogue(); |