view src/share/vm/ci/ciConstantPoolCache.hpp @ 2007:5ddfcf4b079e

7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer Summary: C1 with profiling doesn't check whether the MDO has been really allocated, which can silently fail if the perm gen is full. The solution is to check if the allocation failed and bailout out of inlining or compilation. Reviewed-by: kvn, never
author iveresov
date Thu, 02 Dec 2010 17:21:12 -0800
parents f95d63e2154a
children da91efe96a93
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/*
 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

#ifndef SHARE_VM_CI_CICONSTANTPOOLCACHE_HPP
#define SHARE_VM_CI_CICONSTANTPOOLCACHE_HPP

#include "memory/resourceArea.hpp"
#include "utilities/growableArray.hpp"

// ciConstantPoolCache
//
// The class caches indexed constant pool lookups.
//
// Usage note: this klass has nothing to do with constantPoolCacheOop.
class ciConstantPoolCache : public ResourceObj {
private:
  GrowableArray<intptr_t>*   _keys;
  GrowableArray<void*>* _elements;

  int find(int index);

public:
  ciConstantPoolCache(Arena* arena, int expected_size);

  // Get the element associated with some index.
  void* get(int index);

  // Associate an element with an index.
  void insert(int index, void* element);

  void print();
};

#endif // SHARE_VM_CI_CICONSTANTPOOLCACHE_HPP