src/share/vm/ci/ciMethodHandle.cpp

Tue, 24 Jul 2012 10:51:00 -0700

author
twisti
date
Tue, 24 Jul 2012 10:51:00 -0700
changeset 3969
1d7922586cf6
parent 3245
e0658a9b3f87
child 4037
da91efe96a93
permissions
-rw-r--r--

7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>

twisti@1573 1 /*
twisti@2437 2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
twisti@1573 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
twisti@1573 4 *
twisti@1573 5 * This code is free software; you can redistribute it and/or modify it
twisti@1573 6 * under the terms of the GNU General Public License version 2 only, as
twisti@1573 7 * published by the Free Software Foundation.
twisti@1573 8 *
twisti@1573 9 * This code is distributed in the hope that it will be useful, but WITHOUT
twisti@1573 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
twisti@1573 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
twisti@1573 12 * version 2 for more details (a copy is included in the LICENSE file that
twisti@1573 13 * accompanied this code).
twisti@1573 14 *
twisti@1573 15 * You should have received a copy of the GNU General Public License version
twisti@1573 16 * 2 along with this work; if not, write to the Free Software Foundation,
twisti@1573 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
twisti@1573 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.
twisti@1573 22 *
twisti@1573 23 */
twisti@1573 24
stefank@2314 25 #include "precompiled.hpp"
stefank@2314 26 #include "ci/ciClassList.hpp"
stefank@2314 27 #include "ci/ciMethodHandle.hpp"
stefank@2314 28 #include "ci/ciUtilities.hpp"
twisti@3969 29 #include "classfile/javaClasses.hpp"
twisti@1573 30
twisti@1573 31 // ------------------------------------------------------------------
twisti@3969 32 // ciMethodHandle::get_vmtarget
twisti@1573 33 //
twisti@3969 34 // Return: MH.form -> LF.vmentry -> MN.vmtarget
twisti@3969 35 ciMethod* ciMethodHandle::get_vmtarget() const {
twisti@1573 36 VM_ENTRY_MARK;
twisti@3969 37 oop form_oop = java_lang_invoke_MethodHandle::form(get_oop());
twisti@3969 38 oop vmentry_oop = java_lang_invoke_LambdaForm::vmentry(form_oop);
twisti@3969 39 oop vmtarget_oop = java_lang_invoke_MemberName::vmtarget(vmentry_oop);
twisti@3969 40 return CURRENT_ENV->get_object(vmtarget_oop)->as_method();
twisti@1573 41 }

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