src/hotspot/share/gc/parallel/psPromotionLAB.cpp
changeset 49722 a47d1e21b3f1
parent 47216 71c04702a3d5
child 54786 ebf733a324d4
equal deleted inserted replaced
49721:ea0cc7c74e75 49722:a47d1e21b3f1
     1 /*
     1 /*
     2  * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.
     2  * Copyright (c) 2002, 2018, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     7  * published by the Free Software Foundation.
    80 
    80 
    81   // PLAB's never allocate the last aligned_header_size
    81   // PLAB's never allocate the last aligned_header_size
    82   // so they can always fill with an array.
    82   // so they can always fill with an array.
    83   HeapWord* tlab_end = end() + filler_header_size;
    83   HeapWord* tlab_end = end() + filler_header_size;
    84   typeArrayOop filler_oop = (typeArrayOop) top();
    84   typeArrayOop filler_oop = (typeArrayOop) top();
    85   filler_oop->set_mark(markOopDesc::prototype());
    85   filler_oop->set_mark_raw(markOopDesc::prototype());
    86   filler_oop->set_klass(Universe::intArrayKlassObj());
    86   filler_oop->set_klass(Universe::intArrayKlassObj());
    87   const size_t array_length =
    87   const size_t array_length =
    88     pointer_delta(tlab_end, top()) - typeArrayOopDesc::header_size(T_INT);
    88     pointer_delta(tlab_end, top()) - typeArrayOopDesc::header_size(T_INT);
    89   assert( (array_length * (HeapWordSize/sizeof(jint))) < (size_t)max_jint, "array too big in PSPromotionLAB");
    89   assert( (array_length * (HeapWordSize/sizeof(jint))) < (size_t)max_jint, "array too big in PSPromotionLAB");
    90   filler_oop->set_length((int)(array_length * (HeapWordSize/sizeof(jint))));
    90   filler_oop->set_length((int)(array_length * (HeapWordSize/sizeof(jint))));