hotspot/src/share/vm/ci/ciCPCache.cpp
author jrose
Wed, 09 Jun 2010 18:50:45 -0700
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child 7397 5b173b4ca846
permissions -rw-r--r--
6939203: JSR 292 needs method handle constants Summary: Add new CP types CONSTANT_MethodHandle, CONSTANT_MethodType; extend 'ldc' bytecode. Reviewed-by: twisti, never
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/*
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 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "incls/_precompiled.incl"
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#include "incls/_ciCPCache.cpp.incl"
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// ciCPCache
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// ------------------------------------------------------------------
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// ciCPCache::get_f1_offset
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size_t ciCPCache::get_f1_offset(int index) {
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  // Calculate the offset from the constantPoolCacheOop to the f1
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  // field.
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  ByteSize f1_offset =
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    constantPoolCacheOopDesc::entry_offset(index) +
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    ConstantPoolCacheEntry::f1_offset();
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  return in_bytes(f1_offset);
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}
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// ------------------------------------------------------------------
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// ciCPCache::is_f1_null_at
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bool ciCPCache::is_f1_null_at(int index) {
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  VM_ENTRY_MARK;
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  oop f1 = entry_at(index)->f1();
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  return (f1 == NULL);
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}
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// ------------------------------------------------------------------
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// ciCPCache::get_pool_index
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int ciCPCache::get_pool_index(int index) {
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  VM_ENTRY_MARK;
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  ConstantPoolCacheEntry* e = entry_at(index);
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  if (e->is_secondary_entry())
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    e = entry_at(e->main_entry_index());
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  return e->constant_pool_index();
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}
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// ------------------------------------------------------------------
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// ciCPCache::print
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//
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// Print debugging information about the cache.
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void ciCPCache::print() {
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  Unimplemented();
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}