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1 /* |
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2 * Copyright (c) 2015, 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 8072008 |
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27 * @library /testlibrary /../../test/lib |
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28 * @build InvokeTest NonInlinedReinvoker |
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29 * @run main ClassFileInstaller sun.hotspot.WhiteBox |
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30 * sun.hotspot.WhiteBox$WhiteBoxPermission |
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31 * java.lang.invoke.InvokeTest |
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32 * java.lang.invoke.InvokeTest$T |
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33 * java.lang.invoke.InvokeTest$P1 |
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34 * java.lang.invoke.InvokeTest$P2 |
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35 * java.lang.invoke.InvokeTest$I |
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36 * java.lang.invoke.NonInlinedReinvoker |
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37 * jdk.test.lib.Asserts |
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38 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions |
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39 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI |
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40 * -Xbatch -XX:-TieredCompilation -XX:CICompilerCount=1 |
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41 * java.lang.invoke.InvokeTest |
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42 */ |
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43 package java.lang.invoke; |
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44 |
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45 import sun.hotspot.WhiteBox; |
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46 import static jdk.test.lib.Asserts.*; |
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47 |
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48 public class InvokeTest { |
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49 static MethodHandles.Lookup LOOKUP = MethodHandles.Lookup.IMPL_LOOKUP; |
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50 |
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51 static final MethodHandle virtualMH; // invokevirtual T.f1 |
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52 static final MethodHandle staticMH; // invokestatic T.f2 |
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53 static final MethodHandle intfMH; // invokeinterface I.f1 |
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54 static final MethodHandle specialMH; // invokespecial T.f4 T |
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55 static final MethodHandle basicMH; |
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56 |
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57 static final WhiteBox WB = WhiteBox.getWhiteBox(); |
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58 |
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59 static volatile boolean doDeopt = false; |
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60 |
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61 static { |
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62 try { |
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63 MethodType mtype = MethodType.methodType(Class.class); |
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64 |
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65 virtualMH = LOOKUP.findVirtual(T.class, "f1", mtype); |
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66 staticMH = LOOKUP.findStatic (T.class, "f2", mtype); |
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67 intfMH = LOOKUP.findVirtual(I.class, "f3", mtype); |
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68 specialMH = LOOKUP.findSpecial(T.class, "f4", mtype, T.class); |
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69 basicMH = NonInlinedReinvoker.make(staticMH); |
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70 } catch (Exception e) { |
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71 throw new Error(e); |
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72 } |
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73 } |
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74 |
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75 static class T implements I { |
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76 @DontInline public Class<?> f1() { if (doDeopt) WB.deoptimize(); return T.class; } |
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77 @DontInline public static Class<?> f2() { if (doDeopt) WB.deoptimize(); return T.class; } |
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78 @DontInline private Class<?> f4() { if (doDeopt) WB.deoptimize(); return T.class; } |
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79 } |
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80 |
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81 static class P1 extends T { |
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82 @DontInline public Class<?> f1() { if (doDeopt) WB.deoptimize(); return P1.class; } |
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83 @DontInline public Class<?> f3() { if (doDeopt) WB.deoptimize(); return P1.class; } |
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84 } |
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85 |
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86 static class P2 extends T { |
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87 @DontInline public Class<?> f1() { if (doDeopt) WB.deoptimize(); return P2.class; } |
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88 @DontInline public Class<?> f3() { if (doDeopt) WB.deoptimize(); return P2.class; } |
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89 } |
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90 |
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91 static interface I { |
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92 @DontInline default Class<?> f3() { if (doDeopt) WB.deoptimize(); return I.class; } |
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93 } |
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94 |
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95 @DontInline |
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96 static void linkToVirtual(Object obj, Class<?> extecpted) { |
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97 try { |
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98 Class<?> cls = (Class<?>)virtualMH.invokeExact((T)obj); |
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99 assertEquals(cls, obj.getClass()); |
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100 } catch (Throwable e) { |
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101 throw new Error(e); |
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102 } |
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103 } |
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104 |
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105 @DontInline |
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106 static void linkToInterface(Object obj, Class<?> expected) { |
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107 try { |
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108 Class<?> cls = (Class<?>)intfMH.invokeExact((I)obj); |
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109 assertEquals(cls, expected); |
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110 } catch (Throwable e) { |
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111 throw new Error(e); |
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112 } |
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113 } |
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114 |
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115 @DontInline |
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116 static void linkToStatic() { |
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117 try { |
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118 Class<?> cls = (Class<?>)staticMH.invokeExact(); |
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119 assertEquals(cls, T.class); |
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120 } catch (Throwable e) { |
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121 throw new Error(e); |
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122 } |
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123 } |
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124 |
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125 @DontInline |
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126 static void linkToSpecial(Object obj, Class<?> expected) { |
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127 try { |
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128 Class<?> cls = (Class<?>)specialMH.invokeExact((T)obj); |
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129 assertEquals(cls, expected); |
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130 } catch (Throwable e) { |
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131 throw new Error(e); |
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132 } |
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133 } |
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134 |
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135 @DontInline |
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136 static void invokeBasic() { |
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137 try { |
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138 Class<?> cls = (Class<?>)basicMH.invokeBasic(); |
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139 assertEquals(cls, T.class); |
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140 } catch (Throwable e) { |
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141 throw new Error(e); |
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142 } |
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143 } |
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144 |
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145 static void run(Runnable r) { |
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146 for (int i = 0; i < 20_000; i++) { |
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147 r.run(); |
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148 } |
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149 |
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150 doDeopt = true; |
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151 r.run(); |
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152 doDeopt = false; |
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153 |
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154 WB.clearInlineCaches(); |
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155 |
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156 for (int i = 0; i < 20_000; i++) { |
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157 r.run(); |
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158 } |
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159 |
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160 doDeopt = true; |
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161 r.run(); |
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162 doDeopt = false; |
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163 } |
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164 |
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165 static void testVirtual() { |
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166 System.out.println("linkToVirtual"); |
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167 |
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168 // Monomorphic case (optimized virtual call) |
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169 run(() -> linkToVirtual(new T(), T.class)); |
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170 |
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171 // Megamorphic case (virtual call) |
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172 Object[] recv = new Object[] { new T(), new P1(), new P2() }; |
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173 run(() -> { |
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174 for (Object r : recv) { |
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175 linkToVirtual(r, r.getClass()); |
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176 }}); |
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177 } |
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178 |
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179 static void testInterface() { |
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180 System.out.println("linkToInterface"); |
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181 |
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182 // Monomorphic case (optimized virtual call) |
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183 run(() -> linkToInterface(new T(), I.class)); |
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184 |
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185 // Megamorphic case (virtual call) |
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186 Object[][] recv = new Object[][] {{new T(), I.class}, {new P1(), P1.class}, {new P2(), P2.class}}; |
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187 run(() -> { |
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188 for (Object[] r : recv) { |
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189 linkToInterface(r[0], (Class<?>)r[1]); |
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190 }}); |
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191 } |
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192 |
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193 static void testSpecial() { |
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194 System.out.println("linkToSpecial"); |
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195 // Monomorphic case (optimized virtual call) |
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196 run(() -> linkToSpecial(new T(), T.class)); |
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197 } |
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198 |
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199 static void testStatic() { |
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200 System.out.println("linkToStatic"); |
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201 // static call |
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202 run(() -> linkToStatic()); |
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203 } |
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204 |
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205 static void testBasic() { |
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206 System.out.println("invokeBasic"); |
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207 // static call |
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208 run(() -> invokeBasic()); |
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209 } |
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210 |
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211 public static void main(String[] args) { |
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212 testVirtual(); |
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213 testInterface(); |
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214 testSpecial(); |
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215 testStatic(); |
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216 testBasic(); |
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217 } |
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218 } |