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  */
  24 
  25 #ifndef SHARE_VM_GC_SHARED_AGETABLE_HPP
  26 #define SHARE_VM_GC_SHARED_AGETABLE_HPP
  27 
  28 #include "oops/markOop.hpp"
  29 #include "oops/oop.hpp"
  30 #include "runtime/perfData.hpp"
  31 
  32 /* Copyright (c) 1992, 2016, Oracle and/or its affiliates, and Stanford University.
  33    See the LICENSE file for license information. */
  34 
  35 // Age table for adaptive feedback-mediated tenuring (scavenging)
  36 //
  37 // Note: all sizes are in oops
  38 
  39 class AgeTable VALUE_OBJ_CLASS_SPEC {
  40   friend class VMStructs;
  41 
  42  public:
  43   // constants
  44   enum { table_size = markOopDesc::max_age + 1 };
  45 
  46   // instance variables
  47   size_t sizes[table_size];
  48 
  49   // constructor.  "global" indicates that this is the global age table
  50   // (as opposed to gc-thread-local)
  51   AgeTable(bool global = true);
  52 
  53   // clear table
  54   void clear();
  55 
  56   // add entry
  57   inline void add(oop p, size_t oop_size);
  58 
  59   void add(uint age, size_t oop_size) {

  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  */
  24 
  25 #ifndef SHARE_VM_GC_SHARED_AGETABLE_HPP
  26 #define SHARE_VM_GC_SHARED_AGETABLE_HPP
  27 
  28 #include "oops/markOop.hpp"
  29 #include "oops/oop.hpp"
  30 #include "runtime/perfData.hpp"
  31 
  32 /* Copyright (c) 1992, 2016, Oracle and/or its affiliates, and Stanford University.
  33    See the LICENSE file for license information. */
  34 
  35 // Age table for adaptive feedback-mediated tenuring (scavenging)
  36 //
  37 // Note: all sizes are in oops
  38 
  39 class AgeTable {
  40   friend class VMStructs;
  41 
  42  public:
  43   // constants
  44   enum { table_size = markOopDesc::max_age + 1 };
  45 
  46   // instance variables
  47   size_t sizes[table_size];
  48 
  49   // constructor.  "global" indicates that this is the global age table
  50   // (as opposed to gc-thread-local)
  51   AgeTable(bool global = true);
  52 
  53   // clear table
  54   void clear();
  55 
  56   // add entry
  57   inline void add(oop p, size_t oop_size);
  58 
  59   void add(uint age, size_t oop_size) {