jdk8-mips64-public/hotspot: src/share/vm/oops/compiledICHolderOop.hpp@f7c4174b33ba

7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
Summary: Fold instanceKlass::_enclosing_method_class_index and instanceKlass::_enclosing_method_method_index into the instanceKlass::_inner_classes array.
Reviewed-by: never, coleenp
Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>

     1 /*

     2  * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     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

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #ifndef SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP

    26 #define SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP

    28 #include "oops/oop.hpp"

    30 // A compiledICHolderOop is a helper object for the inline cache implementation.

    31 // It holds an intermediate value (method+klass pair) used when converting from

    32 // compiled to an interpreted call.

    33 //

    34 // compiledICHolderOops are always allocated permanent (to avoid traversing the

    35 // codeCache during scavenge).

    38 class compiledICHolderOopDesc : public oopDesc {

    39   friend class VMStructs;

    40  private:

    41   methodOop _holder_method;

    42   klassOop  _holder_klass;    // to avoid name conflict with oopDesc::_klass

    43  public:

    44   // accessors

    45   methodOop holder_method() const     { return _holder_method; }

    46   klassOop  holder_klass()  const     { return _holder_klass; }

    48   void set_holder_method(methodOop m) { oop_store_without_check((oop*)&_holder_method, (oop)m); }

    49   void set_holder_klass(klassOop k)   { oop_store_without_check((oop*)&_holder_klass, (oop)k); }

    51   static int header_size()            { return sizeof(compiledICHolderOopDesc)/HeapWordSize; }

    52   static int object_size()            { return align_object_size(header_size()); }

    54   // interpreter support (offsets in bytes)

    55   static int holder_method_offset()   { return offset_of(compiledICHolderOopDesc, _holder_method); }

    56   static int holder_klass_offset()    { return offset_of(compiledICHolderOopDesc, _holder_klass); }

    58   // GC support

    59   oop* adr_holder_method() const      { return (oop*)&_holder_method; }

    60   oop* adr_holder_klass() const       { return (oop*)&_holder_klass; }

    61 };

    63 #endif // SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/oops/compiledICHolderOop.hpp@f7c4174b33ba

src/share/vm/oops/compiledICHolderOop.hpp