Wed, 23 Oct 2013 12:40:23 +0200
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
1 /*
2 * Copyright (c) 2009, 2011, 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.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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23 */
25 #include "precompiled.hpp"
26 #include "ci/ciCallSite.hpp"
27 #include "ci/ciUtilities.hpp"
29 // ciCallSite
31 bool ciCallSite::is_constant_call_site() {
32 return klass()->is_subclass_of(CURRENT_ENV->ConstantCallSite_klass());
33 }
34 bool ciCallSite::is_mutable_call_site() {
35 return klass()->is_subclass_of(CURRENT_ENV->MutableCallSite_klass());
36 }
37 bool ciCallSite::is_volatile_call_site() {
38 return klass()->is_subclass_of(CURRENT_ENV->VolatileCallSite_klass());
39 }
41 // ------------------------------------------------------------------
42 // ciCallSite::get_target
43 //
44 // Return the target MethodHandle of this CallSite.
45 ciMethodHandle* ciCallSite::get_target() const {
46 VM_ENTRY_MARK;
47 oop method_handle_oop = java_lang_invoke_CallSite::target(get_oop());
48 return CURRENT_ENV->get_object(method_handle_oop)->as_method_handle();
49 }
51 // ------------------------------------------------------------------
52 // ciCallSite::print
53 //
54 // Print debugging information about the CallSite.
55 void ciCallSite::print() {
56 Unimplemented();
57 }