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annotate test/compiler/7042153/Test7042153.java @ 3362:d4c1fbc3de95

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7042153: guarantee(x_compare_res != Constant::not_comparable) failed: incomparable constants in IfOp Summary: Handle IfOps folding properly in case of unloaded constant oop arguments Reviewed-by: kvn, never
author iveresov
date Fri, 06 May 2011 12:12:29 -0700
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d4c1fbc3de95 7042153: guarantee(x_compare_res != Constant::not_comparable) failed: incomparable constants in IfOp
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1 /*
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2 * Copyright (c) 2011, 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
d4c1fbc3de95 7042153: guarantee(x_compare_res != Constant::not_comparable) failed: incomparable constants in IfOp
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6 * under the terms of the GNU General Public License version 2 only, as
d4c1fbc3de95 7042153: guarantee(x_compare_res != Constant::not_comparable) failed: incomparable constants in IfOp
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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
d4c1fbc3de95 7042153: guarantee(x_compare_res != Constant::not_comparable) failed: incomparable constants in IfOp
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
d4c1fbc3de95 7042153: guarantee(x_compare_res != Constant::not_comparable) failed: incomparable constants in IfOp
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
d4c1fbc3de95 7042153: guarantee(x_compare_res != Constant::not_comparable) failed: incomparable constants in IfOp
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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
d4c1fbc3de95 7042153: guarantee(x_compare_res != Constant::not_comparable) failed: incomparable constants in IfOp
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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 /**
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26 * @test
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27 * @bug 7042153
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28 * @summary Bad folding of IfOps with unloaded constant arguments in C1
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29 *
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30 * @run main/othervm -Xcomp Test7042153
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31 */
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32
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33 import java.lang.reflect.*;
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34
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35 public class Test7042153 {
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36 static public class Bar { }
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37 static public class Foo { }
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38
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39 static volatile boolean z;
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40 public static void main(String [] args) {
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41 Class cx = Bar.class;
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42 Class cy = Foo.class;
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43 z = (cx == cy);
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44 }
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45 }