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annotate test/compiler/whitebox/IsMethodCompilableTest.java @ 14726:92aa6797d639
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author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 24 Mar 2014 21:30:43 +0100 |
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
8051 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 */ | |
23 | |
24 /* | |
25 * @test IsMethodCompilableTest | |
12073 | 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,SimpleTestCase$Helper::* IsMethodCompilableTest |
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31 * @summary testing of WB::isMethodCompilable() |
8051 | 32 * @author igor.ignatyev@oracle.com |
33 */ | |
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 */ |
8051 | 38 protected static final long PER_METHOD_RECOMPILATION_CUTOFF; |
39 | |
40 static { | |
41 long tmp = Long.parseLong( | |
42 getVMOption("PerMethodRecompilationCutoff", "400")); | |
43 if (tmp == -1) { | |
44 PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */; | |
45 } else { | |
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46 PER_METHOD_RECOMPILATION_CUTOFF = 1 + (0xFFFFFFFFL & tmp); |
8051 | 47 } |
48 } | |
49 | |
50 public static void main(String[] args) throws Exception { | |
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51 CompilerWhiteBoxTest.main(IsMethodCompilableTest::new, args); |
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52 } |
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53 |
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54 private IsMethodCompilableTest(TestCase testCase) { |
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55 super(testCase); |
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56 // to prevent inlining of #method |
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57 WHITE_BOX.testSetDontInlineMethod(method, true); |
8051 | 58 } |
59 | |
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60 /** |
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61 * Tests {@code WB::isMethodCompilable()} by recompilation of tested method |
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62 * 'PerMethodRecompilationCutoff' times and checks compilation status. Also |
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63 * checks that WB::clearMethodState() clears no-compilable flags. |
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64 * |
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65 * @throws Exception if one of the checks fails. |
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66 */ |
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67 @Override |
8051 | 68 protected void test() throws Exception { |
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69 if (testCase.isOsr() && CompilerWhiteBoxTest.MODE.startsWith( |
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70 "compiled ")) { |
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71 System.err.printf("Warning: %s is not applicable in %s%n", |
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72 testCase.name(), CompilerWhiteBoxTest.MODE); |
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73 return; |
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74 } |
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75 if (!isCompilable()) { |
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76 throw new RuntimeException(method + " must be compilable"); |
8051 | 77 } |
78 System.out.println("PerMethodRecompilationCutoff = " | |
79 + PER_METHOD_RECOMPILATION_CUTOFF); | |
80 if (PER_METHOD_RECOMPILATION_CUTOFF == -1) { | |
81 System.err.println( | |
82 "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf"); | |
83 return; | |
84 } | |
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85 |
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86 // deoptimize 'PerMethodRecompilationCutoff' times and clear state |
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87 for (long i = 0L, n = PER_METHOD_RECOMPILATION_CUTOFF - 1; i < n; ++i) { |
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88 compileAndDeoptimize(); |
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89 } |
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90 if (!testCase.isOsr() && !isCompilable()) { |
12073 | 91 // in osr test case count of deopt maybe more than iterations |
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92 throw new RuntimeException(method + " is not compilable after " |
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93 + (PER_METHOD_RECOMPILATION_CUTOFF - 1) + " iterations"); |
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94 } |
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95 WHITE_BOX.clearMethodState(method); |
8051 | 96 |
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97 // deoptimize 'PerMethodRecompilationCutoff' + 1 times |
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98 long i; |
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99 for (i = 0L; i < PER_METHOD_RECOMPILATION_CUTOFF |
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100 && isCompilable(); ++i) { |
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101 compileAndDeoptimize(); |
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102 } |
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103 if (!testCase.isOsr() && i != PER_METHOD_RECOMPILATION_CUTOFF) { |
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104 // in osr test case count of deopt maybe more than iterations |
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105 throw new RuntimeException(method + " is not compilable after " |
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106 + i + " iterations, but must only after " |
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107 + PER_METHOD_RECOMPILATION_CUTOFF); |
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108 } |
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109 if (isCompilable()) { |
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110 throw new RuntimeException(method + " is still compilable after " |
8051 | 111 + PER_METHOD_RECOMPILATION_CUTOFF + " iterations"); |
112 } | |
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113 compile(); |
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114 checkNotCompiled(); |
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115 |
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116 // WB.clearMethodState() must reset no-compilable flags |
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117 WHITE_BOX.clearMethodState(method); |
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118 if (!isCompilable()) { |
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119 throw new RuntimeException(method |
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120 + " is not compilable after clearMethodState()"); |
8051 | 121 } |
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122 compile(); |
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123 checkCompiled(); |
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124 } |
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125 |
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126 private void compileAndDeoptimize() throws Exception { |
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127 compile(); |
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128 waitBackgroundCompilation(); |
12073 | 129 deoptimize(); |
8051 | 130 } |
131 } |