Mercurial > hg > truffle
annotate test/compiler/jsr292/VMAnonymousClasses.java @ 21598:05ecef0a6a24
LinearScanLifetimeAnalysisPhase: special case StackStoreOp.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Thu, 28 May 2015 13:07:25 +0200 |
parents | 9dc314de223d |
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rev | line source |
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20574
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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 /** |
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25 * @test |
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26 * @bug 8058828 |
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27 * @run main/bootclasspath -Xbatch VMAnonymousClasses |
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28 */ |
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29 |
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30 import jdk.internal.org.objectweb.asm.ClassWriter; |
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31 import jdk.internal.org.objectweb.asm.MethodVisitor; |
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32 import jdk.internal.org.objectweb.asm.Opcodes; |
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33 import sun.misc.Unsafe; |
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34 |
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35 import java.lang.invoke.ConstantCallSite; |
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36 import java.lang.invoke.MethodHandle; |
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37 import java.lang.invoke.MethodHandles; |
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38 import java.lang.invoke.MethodType; |
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39 import java.lang.invoke.MutableCallSite; |
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40 import java.lang.invoke.VolatileCallSite; |
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41 |
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42 public class VMAnonymousClasses { |
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43 static final String TEST_METHOD_NAME = "constant"; |
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44 |
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45 static final Unsafe UNSAFE = Unsafe.getUnsafe(); |
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46 |
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47 static int getConstantPoolSize(byte[] classFile) { |
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48 // The first few bytes: |
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49 // u4 magic; |
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50 // u2 minor_version; |
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51 // u2 major_version; |
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52 // u2 constant_pool_count; |
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53 return ((classFile[8] & 0xFF) << 8) | (classFile[9] & 0xFF); |
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54 } |
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55 |
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56 static void test(Object value) throws ReflectiveOperationException { |
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57 System.out.printf("Test: %s", value != null ? value.getClass() : "null"); |
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58 |
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59 ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES); |
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60 cw.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC | Opcodes.ACC_SUPER, "Test", null, "java/lang/Object", null); |
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61 |
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62 MethodVisitor mv = cw.visitMethod(Opcodes.ACC_STATIC | Opcodes.ACC_PUBLIC, TEST_METHOD_NAME, "()Ljava/lang/Object;", null, null); |
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63 |
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64 String placeholder = "CONSTANT"; |
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65 int index = cw.newConst(placeholder); |
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66 mv.visitLdcInsn(placeholder); |
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67 mv.visitInsn(Opcodes.ARETURN); |
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68 |
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69 mv.visitMaxs(0, 0); |
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70 mv.visitEnd(); |
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71 |
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72 byte[] classFile = cw.toByteArray(); |
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73 |
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74 Object[] cpPatches = new Object[getConstantPoolSize(classFile)]; |
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75 cpPatches[index] = value; |
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76 |
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77 Class<?> test = UNSAFE.defineAnonymousClass(VMAnonymousClasses.class, classFile, cpPatches); |
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78 |
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79 Object expectedResult = (value != null) ? value : placeholder; |
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80 for (int i = 0; i<15000; i++) { |
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81 Object result = test.getMethod(TEST_METHOD_NAME).invoke(null); |
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82 if (result != expectedResult) { |
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83 throw new AssertionError(String.format("Wrong value returned: %s != %s", value, result)); |
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84 } |
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85 } |
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86 System.out.println(" PASSED"); |
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87 } |
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88 |
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89 public static void main(String[] args) throws ReflectiveOperationException { |
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90 // Objects |
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91 test(new Object()); |
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92 test("TEST"); |
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93 test(new VMAnonymousClasses()); |
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94 test(null); |
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95 |
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96 // Class |
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97 test(String.class); |
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98 |
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99 // Arrays |
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100 test(new boolean[0]); |
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101 test(new byte[0]); |
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102 test(new char[0]); |
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103 test(new short[0]); |
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104 test(new int[0]); |
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105 test(new long[0]); |
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106 test(new float[0]); |
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107 test(new double[0]); |
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108 test(new Object[0]); |
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109 |
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110 // Multi-dimensional arrays |
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111 test(new byte[0][0]); |
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112 test(new Object[0][0]); |
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113 |
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114 // MethodHandle-related |
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115 MethodType mt = MethodType.methodType(void.class, String[].class); |
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116 MethodHandle mh = MethodHandles.lookup().findStatic(VMAnonymousClasses.class, "main", mt); |
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117 test(mt); |
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118 test(mh); |
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119 test(new ConstantCallSite(mh)); |
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120 test(new MutableCallSite(MethodType.methodType(void.class))); |
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121 test(new VolatileCallSite(MethodType.methodType(void.class))); |
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122 |
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123 System.out.println("TEST PASSED"); |
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124 } |
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125 } |