1 /*
   2  * Copyright (c) 2009, 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  */
  24 
  25 #include "incls/_precompiled.incl"
  26 #include "incls/_ciCPCache.cpp.incl"
  27 
  28 // ciCPCache
  29 
  30 // ------------------------------------------------------------------
  31 // ciCPCache::get_f1_offset
  32 size_t ciCPCache::get_f1_offset(int index) {
  33   // Calculate the offset from the constantPoolCacheOop to the f1
  34   // field.
  35   ByteSize f1_offset =
  36     constantPoolCacheOopDesc::entry_offset(index) +
  37     ConstantPoolCacheEntry::f1_offset();
  38 
  39   return in_bytes(f1_offset);
  40 }
  41 
  42 
  43 // ------------------------------------------------------------------
  44 // ciCPCache::is_f1_null_at
  45 bool ciCPCache::is_f1_null_at(int index) {
  46   VM_ENTRY_MARK;
  47   oop f1 = entry_at(index)->f1();
  48   return (f1 == NULL);
  49 }
  50 
  51 
  52 // ------------------------------------------------------------------
  53 // ciCPCache::get_pool_index
  54 int ciCPCache::get_pool_index(int index) {
  55   VM_ENTRY_MARK;
  56   ConstantPoolCacheEntry* e = entry_at(index);
  57   if (e->is_secondary_entry())
  58     e = entry_at(e->main_entry_index());
  59   return e->constant_pool_index();
  60 }
  61 
  62 
  63 // ------------------------------------------------------------------
  64 // ciCPCache::print
  65 //
  66 // Print debugging information about the cache.
  67 void ciCPCache::print() {
  68   Unimplemented();
  69 }