annotate test/compiler/whitebox/IsMethodCompilableTest.java @ 10988:cd54c7e92908

8015660: Test8009761.java "Failed: init recursive calls: 24. After deopt 25" Summary: Windows reserves and only partially commits thread stack. For detecting more thread stack space for execution, Windows installs one-shot page as guard page just before the current commited edge. It will trigger STACK_OVERFLOW_EXCEPTION when lands on last 4 pages of thread stack space. StackYellowPages default value is 2 on Windows (plus 1 page of StackRedPages, 3 pages guarded by hotspot) so the exception happens one page before Yellow pages. Same route executed second time will have one more page brought in, this leads same execution with different stack depth(interpreter mode). We need match Windows settings so the stack overflow exception will not happen before Yellow pages. Reviewed-by: dholmes Contributed-by: andreas.schoesser@sap.com
author minqi
date Tue, 18 Jun 2013 09:08:35 -0700
parents 4b2eebe03f93
children 11237ee74aae
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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 * @library /testlibrary /testlibrary/whitebox
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28 * @build IsMethodCompilableTest
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29 * @run main ClassFileInstaller sun.hotspot.WhiteBox
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30 * @run main/othervm/timeout=600 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI IsMethodCompilableTest
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31 * @summary testing of WB::isMethodCompilable()
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32 * @author igor.ignatyev@oracle.com
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33 */
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34 public class IsMethodCompilableTest extends CompilerWhiteBoxTest {
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35 /**
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36 * Value of {@code -XX:PerMethodRecompilationCutoff}
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37 */
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38 protected static final long PER_METHOD_RECOMPILATION_CUTOFF;
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39
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40 static {
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41 long tmp = Long.parseLong(
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42 getVMOption("PerMethodRecompilationCutoff", "400"));
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43 if (tmp == -1) {
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44 PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */;
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45 } else {
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46 PER_METHOD_RECOMPILATION_CUTOFF = 1 + (0xFFFFFFFFL & tmp);
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47 }
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48 }
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49
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50 public static void main(String[] args) throws Exception {
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51 for (TestCase test : TestCase.values()) {
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52 new IsMethodCompilableTest(test).runTest();
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53 }
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54 }
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55
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56 public IsMethodCompilableTest(TestCase testCase) {
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57 super(testCase);
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58 // to prevent inlining of #method
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59 WHITE_BOX.testSetDontInlineMethod(method, true);
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60 }
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61
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62 /**
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63 * Tests {@code WB::isMethodCompilable()} by recompilation of tested method
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64 * 'PerMethodRecompilationCutoff' times and checks compilation status. Also
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65 * checks that WB::clearMethodState() clears no-compilable flags.
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66 *
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67 * @throws Exception if one of the checks fails.
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68 */
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69 @Override
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70 protected void test() throws Exception {
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71 if (!WHITE_BOX.isMethodCompilable(method)) {
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72 throw new RuntimeException(method + " must be compilable");
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73 }
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74 System.out.println("PerMethodRecompilationCutoff = "
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75 + PER_METHOD_RECOMPILATION_CUTOFF);
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76 if (PER_METHOD_RECOMPILATION_CUTOFF == -1) {
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77 System.err.println(
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78 "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
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79 return;
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80 }
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81
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82 // deoptimize 'PerMethodRecompilationCutoff' times and clear state
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83 for (long i = 0L, n = PER_METHOD_RECOMPILATION_CUTOFF - 1; i < n; ++i) {
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84 compileAndDeoptimize();
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85 }
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86 if (!WHITE_BOX.isMethodCompilable(method)) {
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87 throw new RuntimeException(method + " is not compilable after "
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88 + (PER_METHOD_RECOMPILATION_CUTOFF - 1) + " iterations");
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89 }
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90 WHITE_BOX.clearMethodState(method);
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91
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92 // deoptimize 'PerMethodRecompilationCutoff' + 1 times
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93 long i;
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94 for (i = 0L; i < PER_METHOD_RECOMPILATION_CUTOFF
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95 && WHITE_BOX.isMethodCompilable(method); ++i) {
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96 compileAndDeoptimize();
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97 }
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98 if (i != PER_METHOD_RECOMPILATION_CUTOFF) {
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99 throw new RuntimeException(method + " is not compilable after "
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100 + i + " iterations, but must only after "
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101 + PER_METHOD_RECOMPILATION_CUTOFF);
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102 }
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103 if (WHITE_BOX.isMethodCompilable(method)) {
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104 throw new RuntimeException(method + " is still compilable after "
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105 + PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
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106 }
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107 compile();
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108 checkNotCompiled();
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109
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110 // WB.clearMethodState() must reset no-compilable flags
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111 WHITE_BOX.clearMethodState(method);
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112 if (!WHITE_BOX.isMethodCompilable(method)) {
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113 throw new RuntimeException(method
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114 + " is not compilable after clearMethodState()");
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115 }
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116 compile();
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117 checkCompiled();
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118 }
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119
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120 private void compileAndDeoptimize() throws Exception {
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121 compile();
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122 waitBackgroundCompilation();
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123 WHITE_BOX.deoptimizeMethod(method);
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124 }
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125 }