Mercurial > hg > graal-jvmci-8
annotate test/compiler/floatingpoint/TestPow2.java @ 24155:88bd5f7522a1 jvmci-0.30
update hgignore and undo change to hotspot/.project
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 07 Jul 2017 15:08:58 +0200 |
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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 |
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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 8063086 |
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27 * @summary X^2 special case for C2 yields different result than interpreter |
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28 * @library /testlibrary /testlibrary/whitebox /compiler/whitebox |
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29 * @build TestPow2 |
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30 * @run main ClassFileInstaller sun.hotspot.WhiteBox |
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31 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI |
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32 * -XX:-BackgroundCompilation -XX:-UseOnStackReplacement TestPow2 |
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33 * |
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34 */ |
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35 |
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36 import java.lang.reflect.*; |
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37 import sun.hotspot.WhiteBox; |
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38 |
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39 public class TestPow2 { |
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40 |
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41 private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox(); |
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42 |
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43 private static final double base = 5350.456329377186; |
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44 private static final double exp = 2.0; |
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45 |
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46 static double m() { |
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47 return Math.pow(base, exp); |
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48 } |
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49 |
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50 static public void main(String[] args) throws NoSuchMethodException { |
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51 Method test_method = TestPow2.class.getDeclaredMethod("m"); |
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52 |
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53 double interpreter_result = m(); |
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54 |
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55 // Compile with C1 if possible |
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56 WHITE_BOX.enqueueMethodForCompilation(test_method, CompilerWhiteBoxTest.COMP_LEVEL_SIMPLE); |
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57 |
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58 double c1_result = m(); |
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59 |
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60 WHITE_BOX.deoptimizeMethod(test_method); |
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61 |
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62 // Compile it with C2 if possible |
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63 WHITE_BOX.enqueueMethodForCompilation(test_method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION); |
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64 |
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65 double c2_result = m(); |
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66 |
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67 if (interpreter_result != c1_result || interpreter_result != c2_result || |
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68 c1_result != c2_result) { |
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69 System.out.println("interpreter = " + interpreter_result + " c1 = " + c1_result + " c2 = " + c2_result); |
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70 throw new RuntimeException("Test Failed"); |
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71 } |
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72 } |
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73 } |