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annotate test/compiler/whitebox/IsMethodCompilableTest.java @ 14094:3f27e57439ed

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Truffle/Instrumentation: significant rearrangement (including moved class) and extension of the Truffle Instrumentation Framework. New interfaces include DebugContext (which can be attached to the ExecutionContext), through which access is provided to possibly language-specific (a) node instrumentation, (b) debug services manager, (c) notification when programs halt, (d) display of language values, and (e) display of variable identifiers.
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Mon, 03 Feb 2014 20:58:23 -0800
parents 303826f477c6
children f9a4b59ae350
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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 8006683 8007288 8022832
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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=2400 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,TestCase$Helper::* 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 (testCase.isOsr && CompilerWhiteBoxTest.MODE.startsWith(
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72 "compiled ")) {
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73 System.err.printf("Warning: %s is not applicable in %s%n",
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74 testCase.name(), CompilerWhiteBoxTest.MODE);
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75 return;
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76 }
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77 if (!isCompilable()) {
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78 throw new RuntimeException(method + " must be compilable");
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79 }
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80 System.out.println("PerMethodRecompilationCutoff = "
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81 + PER_METHOD_RECOMPILATION_CUTOFF);
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82 if (PER_METHOD_RECOMPILATION_CUTOFF == -1) {
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83 System.err.println(
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84 "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
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85 return;
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86 }
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87
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88 // deoptimize 'PerMethodRecompilationCutoff' times and clear state
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89 for (long i = 0L, n = PER_METHOD_RECOMPILATION_CUTOFF - 1; i < n; ++i) {
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90 compileAndDeoptimize();
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91 }
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92 if (!testCase.isOsr && !isCompilable()) {
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93 // in osr test case count of deopt maybe more than iterations
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94 throw new RuntimeException(method + " is not compilable after "
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95 + (PER_METHOD_RECOMPILATION_CUTOFF - 1) + " iterations");
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96 }
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97 WHITE_BOX.clearMethodState(method);
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98
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99 // deoptimize 'PerMethodRecompilationCutoff' + 1 times
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100 long i;
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101 for (i = 0L; i < PER_METHOD_RECOMPILATION_CUTOFF
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102 && isCompilable(); ++i) {
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103 compileAndDeoptimize();
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104 }
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105 if (!testCase.isOsr && i != PER_METHOD_RECOMPILATION_CUTOFF) {
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106 // in osr test case count of deopt maybe more than iterations
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107 throw new RuntimeException(method + " is not compilable after "
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108 + i + " iterations, but must only after "
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109 + PER_METHOD_RECOMPILATION_CUTOFF);
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110 }
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111 if (isCompilable()) {
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112 throw new RuntimeException(method + " is still compilable after "
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113 + PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
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114 }
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115 compile();
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116 checkNotCompiled();
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117
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118 // WB.clearMethodState() must reset no-compilable flags
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119 WHITE_BOX.clearMethodState(method);
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120 if (!isCompilable()) {
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121 throw new RuntimeException(method
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122 + " is not compilable after clearMethodState()");
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123 }
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124 compile();
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125 checkCompiled();
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126 }
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127
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128 private void compileAndDeoptimize() throws Exception {
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129 compile();
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130 waitBackgroundCompilation();
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131 deoptimize();
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132 }
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133 }