Mercurial > hg > graal-jvmci-8

comparison src/share/vm/oops/instanceKlass.cpp @ 14465:28f281e8de1d

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Merge
author kvn
date Thu, 20 Feb 2014 12:20:56 -0800
parents e6195383bcaf abec000618bf
children 016b6a289fc4 301df27023d4 fdad2932c73f
comparison
equal deleted inserted replaced
14382:805784307dca 14465:28f281e8de1d
1155 if (_oop_map_cache == NULL) { 1155 if (_oop_map_cache == NULL) {
1156 // Otherwise, allocate a new one. 1156 // Otherwise, allocate a new one.
1157 MutexLocker x(OopMapCacheAlloc_lock); 1157 MutexLocker x(OopMapCacheAlloc_lock);
1158 // First time use. Allocate a cache in C heap 1158 // First time use. Allocate a cache in C heap
1159 if (_oop_map_cache == NULL) { 1159 if (_oop_map_cache == NULL) {
1160 _oop_map_cache = new OopMapCache(); 1160 // Release stores from OopMapCache constructor before assignment
1161 // to _oop_map_cache. C++ compilers on ppc do not emit the
1162 // required memory barrier only because of the volatile
1163 // qualifier of _oop_map_cache.
1164 OrderAccess::release_store_ptr(&_oop_map_cache, new OopMapCache());
1161 } 1165 }
1162 } 1166 }
1163 // _oop_map_cache is constant after init; lookup below does is own locking. 1167 // _oop_map_cache is constant after init; lookup below does is own locking.
1164 _oop_map_cache->lookup(method, bci, entry_for); 1168 _oop_map_cache->lookup(method, bci, entry_for);
1165 } 1169 }