annotate src/share/vm/ci/ciMethodKlass.hpp @ 45:48a3fa21394b

6667615: (Escape Analysis) extend MDO to cache arguments escape state Summary: Use MDO to cache arguments escape state determined by the byte code escape analyzer. Reviewed-by: never
author kvn
date Tue, 11 Mar 2008 19:00:38 -0700
parents a61af66fc99e
children c18cbe5936b8
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1 /*
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2 * Copyright 1999-2001 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 // ciMethodKlass
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26 //
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27 // This class represents a klassOop in the HotSpot virtual machine
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28 // whose Klass part in a methodKlass.
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29 class ciMethodKlass : public ciKlass {
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30 CI_PACKAGE_ACCESS
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31
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32 protected:
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33 ciMethodKlass(KlassHandle h_k) :
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34 ciKlass(h_k, ciSymbol::make("unique_methodKlass")) {
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35 assert(get_Klass()->oop_is_method(), "wrong type");
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36 }
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37
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38 methodKlass* get_methodKlass() { return (methodKlass*)get_Klass(); }
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39
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40 const char* type_string() { return "ciMethodKlass"; }
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41
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42 public:
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43 // What kind of ciObject is this?
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44 bool is_method_klass() { return true; }
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45
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46 // Return the distinguished ciMethodKlass instance.
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47 static ciMethodKlass* make();
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48 };