annotate test/compiler/whitebox/IsMethodCompilableTest.java @ 8051:12e01444ca2d

8006683: Add WhiteBox API to testing of compiler Reviewed-by: kvn, vlivanov
author iignatyev
date Wed, 13 Feb 2013 08:29:04 -0800
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children 1b0dc9f87e75
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1 /*
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2 * Copyright (c) 2013, 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 IsMethodCompilableTest
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26 * @bug 8007270
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27 * @compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI CompilerWhiteBoxTest.java
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28 * @compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI IsMethodCompilableTest.java
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29 * @run main/othervm/timeout=600 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI IsMethodCompilableTest
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30 * @author igor.ignatyev@oracle.com
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31 */
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32 public class IsMethodCompilableTest extends CompilerWhiteBoxTest {
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33 protected static final long PER_METHOD_RECOMPILATION_CUTOFF;
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34
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35 static {
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36 long tmp = Long.parseLong(
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37 getVMOption("PerMethodRecompilationCutoff", "400"));
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38 if (tmp == -1) {
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39 PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */;
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40 } else {
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41 PER_METHOD_RECOMPILATION_CUTOFF = 1 + (0xFFFFFFFFL & tmp);
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42 }
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43 }
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44
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45 public static void main(String[] args) throws Exception {
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46 new IsMethodCompilableTest().runTest();
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47 }
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48
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49 protected void test() throws Exception {
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50 if (!WHITE_BOX.isMethodCompilable(METHOD)) {
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51 throw new RuntimeException(METHOD + " must be compilable");
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52 }
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53 System.out.println("PerMethodRecompilationCutoff = "
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54 + PER_METHOD_RECOMPILATION_CUTOFF);
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55 if (PER_METHOD_RECOMPILATION_CUTOFF == -1) {
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56 System.err.println(
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57 "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
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58 return;
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59 }
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60 // to prevent inlining #method into #compile()
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61 WHITE_BOX.setDontInlineMethod(METHOD, true);
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62 boolean madeNotCompilable = false;
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63
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64 for (long i = 0; i < PER_METHOD_RECOMPILATION_CUTOFF; ++i) {
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65 compile();
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66 waitBackgroundCompilation(METHOD);
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67 WHITE_BOX.deoptimizeMethod(METHOD);
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68 if (!WHITE_BOX.isMethodCompilable(METHOD)) {
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69 madeNotCompilable = true;
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70 break;
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71 }
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72 }
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73 if (!madeNotCompilable) {
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74 throw new RuntimeException(METHOD + " is still compilable after "
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75 + PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
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76 }
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77 compile();
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78 if (WHITE_BOX.isMethodCompiled(METHOD)) {
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79 printInfo(METHOD);
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80 throw new RuntimeException(
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81 METHOD + " is not compilable but compiled");
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82 }
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83 }
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84 }