src/share/vm/ci/ciTypeArrayKlass.cpp

Wed, 23 Oct 2013 12:40:23 +0200

author
roland
date
Wed, 23 Oct 2013 12:40:23 +0200
changeset 5991
b2ee5dc63353
parent 4142
d8ce2825b193
child 6876
710a3c8b516e
permissions
-rw-r--r--

8024070: C2 needs some form of type speculation
Summary: record unused type profile information with type system, propagate and use it.
Reviewed-by: kvn, twisti

duke@435 1 /*
coleenp@4037 2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435 4 *
duke@435 5 * This code is free software; you can redistribute it and/or modify it
duke@435 6 * under the terms of the GNU General Public License version 2 only, as
duke@435 7 * published by the Free Software Foundation.
duke@435 8 *
duke@435 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@435 13 * accompanied this code).
duke@435 14 *
duke@435 15 * You should have received a copy of the GNU General Public License version
duke@435 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@435 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435 18 *
trims@1907 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907 20 * or visit www.oracle.com if you need additional information or have any
trims@1907 21 * questions.
duke@435 22 *
duke@435 23 */
duke@435 24
stefank@2314 25 #include "precompiled.hpp"
stefank@2314 26 #include "ci/ciTypeArrayKlass.hpp"
stefank@2314 27 #include "ci/ciUtilities.hpp"
duke@435 28
duke@435 29 // ciTypeArrayKlass
duke@435 30 //
coleenp@4037 31 // This class represents a Klass* in the HotSpot virtual machine
duke@435 32 // whose Klass part in a TypeArrayKlass.
duke@435 33
duke@435 34 // ------------------------------------------------------------------
duke@435 35 // ciTypeArrayKlass::ciTypeArrayKlass
duke@435 36 ciTypeArrayKlass::ciTypeArrayKlass(KlassHandle h_k) : ciArrayKlass(h_k) {
duke@435 37 assert(get_Klass()->oop_is_typeArray(), "wrong type");
coleenp@4142 38 assert(element_type() == get_TypeArrayKlass()->element_type(), "");
duke@435 39 }
duke@435 40
duke@435 41 // ------------------------------------------------------------------
duke@435 42 // ciTypeArrayKlass::make_impl
duke@435 43 //
duke@435 44 // Implementation of make.
duke@435 45 ciTypeArrayKlass* ciTypeArrayKlass::make_impl(BasicType t) {
coleenp@4037 46 Klass* k = Universe::typeArrayKlassObj(t);
coleenp@4037 47 return CURRENT_ENV->get_type_array_klass(k);
duke@435 48 }
duke@435 49
duke@435 50 // ------------------------------------------------------------------
duke@435 51 // ciTypeArrayKlass::make
duke@435 52 //
duke@435 53 // Make an array klass corresponding to the specified primitive type.
duke@435 54 ciTypeArrayKlass* ciTypeArrayKlass::make(BasicType t) {
duke@435 55 GUARDED_VM_ENTRY(return make_impl(t);)
duke@435 56 }

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