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annotate test/compiler/osr/TestOSRWithNonEmptyStack.java @ 20526:584df6794686

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Added tag hs25.40-b14 for changeset e193bbae24ef
author amurillo
date Fri, 10 Oct 2014 03:07:09 -0700
parents dbb05f6d93c4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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20283
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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 import java.lang.reflect.Constructor;
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25 import java.lang.reflect.Method;
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26
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27 import jdk.internal.org.objectweb.asm.ClassWriter;
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28 import jdk.internal.org.objectweb.asm.Label;
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29 import jdk.internal.org.objectweb.asm.MethodVisitor;
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30 import static jdk.internal.org.objectweb.asm.Opcodes.*;
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31
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32 /**
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33 * @test
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34 * @bug 8051344
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35 * @summary Force OSR compilation with non-empty stack at the OSR entry point.
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36 * @compile -XDignore.symbol.file TestOSRWithNonEmptyStack.java
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37 * @run main/othervm -XX:CompileOnly=TestCase.test TestOSRWithNonEmptyStack
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38 */
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39 public class TestOSRWithNonEmptyStack extends ClassLoader {
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40 private static final int CLASS_FILE_VERSION = 52;
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41 private static final String CLASS_NAME = "TestCase";
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42 private static final String METHOD_NAME = "test";
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43 private static final int ITERATIONS = 1_000_000;
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44
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45 private static byte[] generateTestClass() {
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46 ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
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47
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48 cw.visit(TestOSRWithNonEmptyStack.CLASS_FILE_VERSION, ACC_PUBLIC,
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49 TestOSRWithNonEmptyStack.CLASS_NAME, null, "java/lang/Object",
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50 null);
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51
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52 TestOSRWithNonEmptyStack.generateConstructor(cw);
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53 TestOSRWithNonEmptyStack.generateTestMethod(cw);
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54
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55 cw.visitEnd();
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56 return cw.toByteArray();
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57 }
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58
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59 private static void generateConstructor(ClassWriter classWriter) {
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60 MethodVisitor mv = classWriter.visitMethod(ACC_PUBLIC, "<init>", "()V",
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61 null, null);
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62
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63 mv.visitCode();
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64
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65 mv.visitVarInsn(ALOAD, 0);
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66 mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V",
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67 false);
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68 mv.visitInsn(RETURN);
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69
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70 mv.visitMaxs(0, 0);
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71 mv.visitEnd();
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72 }
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73
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74 private static void generateTestMethod(ClassWriter classWriter) {
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75 MethodVisitor mv = classWriter.visitMethod(ACC_PUBLIC,
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76 TestOSRWithNonEmptyStack.METHOD_NAME, "()V", null, null);
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77 Label osrEntryPoint = new Label();
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78
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79 mv.visitCode();
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80 // Push 'this' into stack before OSR entry point to bail out compilation
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81 mv.visitVarInsn(ALOAD, 0);
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82 // Setup loop counter
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83 mv.visitInsn(ICONST_0);
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84 mv.visitVarInsn(ISTORE, 1);
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85 // Begin loop
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86 mv.visitLabel(osrEntryPoint);
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87 // Increment loop counter
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88 mv.visitVarInsn(ILOAD, 1);
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89 mv.visitInsn(ICONST_1);
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90 mv.visitInsn(IADD);
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91 // Duplicate it for loop condition check
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92 mv.visitInsn(DUP);
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93 mv.visitVarInsn(ISTORE, 1);
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94 // Check loop condition
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95 mv.visitLdcInsn(TestOSRWithNonEmptyStack.ITERATIONS);
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96 mv.visitJumpInsn(IF_ICMPLT, osrEntryPoint);
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97 // Pop 'this'.
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98 mv.visitInsn(POP);
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99 mv.visitInsn(RETURN);
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100
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101 mv.visitMaxs(0, 0);
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102 mv.visitEnd();
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103 }
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104
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105 private void run() {
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106 byte[] bytecode = TestOSRWithNonEmptyStack.generateTestClass();
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107
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108 try {
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109 Class klass = defineClass(TestOSRWithNonEmptyStack.CLASS_NAME,
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110 bytecode, 0, bytecode.length);
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111
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112 Constructor ctor = klass.getConstructor();
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113 Method method = klass.getDeclaredMethod(
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114 TestOSRWithNonEmptyStack.METHOD_NAME);
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115
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116 Object testCase = ctor.newInstance();
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117 method.invoke(testCase);
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118 } catch (Exception e) {
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119 throw new RuntimeException(
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120 "Test bug: generated class should be valid.", e);
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121 }
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122 }
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123
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124 public static void main(String args[]) {
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125 new TestOSRWithNonEmptyStack().run();
dbb05f6d93c4 8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
fzhinkin
parents:
diff changeset
126 }
dbb05f6d93c4 8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
fzhinkin
parents:
diff changeset
127 }