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annotate test/compiler/inlining/DefaultAndConcreteMethodsCHA.java @ 17504:709018897c81

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8031695: CHA ignores default methods during analysis leading to incorrect code generation Reviewed-by: jrose, acorn, hseigel, lfoltan
author vlivanov
date Thu, 23 Jan 2014 01:23:23 +0400
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17504
709018897c81 8031695: CHA ignores default methods during analysis leading to incorrect code generation
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. 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
709018897c81 8031695: CHA ignores default methods during analysis leading to incorrect code generation
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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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 /**
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25 * @test
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26 * @bug 8031695
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27 * @summary CHA ignores default methods during analysis leading to incorrect code generation
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28 *
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29 * @run main/othervm -Xbatch DefaultAndConcreteMethodsCHA
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30 */
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31 interface I {
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32 default int m() { return 0; }
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33 }
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34
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35 class A implements I {}
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36
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37 class C extends A { }
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38 class D extends A { public int m() { return 1; } }
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39
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40 public class DefaultAndConcreteMethodsCHA {
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41 public static int test(A obj) {
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42 return obj.m();
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43 }
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44 public static void main(String[] args) {
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45 for (int i = 0; i < 10000; i++) {
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46 int idC = test(new C());
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47 if (idC != 0) {
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48 throw new Error("C.m didn't invoke I.m: id "+idC);
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49 }
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50
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51 int idD = test(new D());
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52 if (idD != 1) {
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53 throw new Error("D.m didn't invoke D.m: id "+idD);
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54 }
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55 }
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56
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57 }
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58 }