1 /*
   2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   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
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  24 /**
  25  * @test
  26  * @bug 8062280
  27  * @summary C2: inlining failure due to access checks being too strict
  28  * @modules java.base/jdk.internal.misc
  29  * @library /testlibrary /
  30  *
  31  * @run main/othervm compiler.jsr292.MHInlineTest
  32  */
  33 
  34 package compiler.jsr292;
  35 
  36 import jdk.test.lib.OutputAnalyzer;
  37 import jdk.test.lib.ProcessTools;
  38 
  39 import java.lang.invoke.MethodHandle;
  40 import java.lang.invoke.MethodHandles;
  41 import java.lang.invoke.MethodType;
  42 
  43 import static jdk.test.lib.Asserts.assertEquals;
  44 
  45 public class MHInlineTest {
  46     public static void main(String[] args) throws Exception {
  47         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  48                 "-XX:+IgnoreUnrecognizedVMOptions", "-showversion",
  49                 "-XX:-TieredCompilation", "-Xbatch",
  50                 "-XX:+PrintCompilation", "-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintInlining",
  51                 "-XX:CompileCommand=dontinline,compiler.jsr292.MHInlineTest::test*",
  52                     Launcher.class.getName());
  53 
  54         OutputAnalyzer analyzer = new OutputAnalyzer(pb.start());
  55 
  56         analyzer.shouldHaveExitValue(0);
  57 
  58         // The test is applicable only to C2 (present in Server VM).
  59         if (analyzer.getStderr().contains("Server VM")) {
  60             analyzer.shouldContain("compiler.jsr292.MHInlineTest$B::public_x (3 bytes)   inline (hot)");
  61             analyzer.shouldContain("compiler.jsr292.MHInlineTest$B::protected_x (3 bytes)   inline (hot)");
  62             analyzer.shouldContain("compiler.jsr292.MHInlineTest$B::package_x (3 bytes)   inline (hot)");
  63             analyzer.shouldContain("compiler.jsr292.MHInlineTest$A::package_final_x (3 bytes)   inline (hot)");
  64             analyzer.shouldContain("compiler.jsr292.MHInlineTest$B::private_x (3 bytes)   inline (hot)");
  65             analyzer.shouldContain("compiler.jsr292.MHInlineTest$B::private_static_x (3 bytes)   inline (hot)");
  66             analyzer.shouldContain("compiler.jsr292.MHInlineTest$A::package_static_x (3 bytes)   inline (hot)");
  67         }
  68     }
  69 
  70     static class A {
  71         public static final MethodHandles.Lookup LOOKUP = MethodHandles.lookup();
  72 
  73         public Class<?>         public_x() { return A.class; }
  74         protected Class<?>   protected_x() { return A.class; }
  75         Class<?>               package_x() { return A.class; }
  76         final Class<?>   package_final_x() { return A.class; }
  77 
  78         static Class<?> package_static_x() { return A.class; }
  79     }
  80 
  81     static class B extends A {
  82         public static final MethodHandles.Lookup LOOKUP = MethodHandles.lookup();
  83 
  84         @Override public    Class<?>    public_x() { return B.class; }
  85         @Override protected Class<?> protected_x() { return B.class; }
  86         @Override Class<?>             package_x() { return B.class; }
  87 
  88         private   Class<?>             private_x() { return B.class; }
  89         static    Class<?>      private_static_x() { return B.class; }
  90     }
  91 
  92     static final MethodHandle A_PUBLIC_X;
  93     static final MethodHandle A_PROTECTED_X;
  94     static final MethodHandle A_PACKAGE_X;
  95     static final MethodHandle A_PACKAGE_STATIC_X;
  96     static final MethodHandle A_PACKAGE_FINAL_X;
  97 
  98     static final MethodHandle B_PRIVATE_X;
  99     static final MethodHandle B_PRIVATE_STATIC_X;
 100 
 101     static {
 102         try {
 103             MethodHandles.Lookup LOOKUP = MethodHandles.lookup();
 104 
 105             A_PUBLIC_X = LOOKUP.findVirtual(
 106                     A.class, "public_x", MethodType.methodType(Class.class));
 107             A_PROTECTED_X = LOOKUP.findVirtual(
 108                     A.class, "protected_x", MethodType.methodType(Class.class));
 109             A_PACKAGE_X = LOOKUP.findVirtual(
 110                     A.class, "package_x", MethodType.methodType(Class.class));
 111             A_PACKAGE_FINAL_X = LOOKUP.findVirtual(
 112                     A.class, "package_final_x", MethodType.methodType(Class.class));
 113             A_PACKAGE_STATIC_X = LOOKUP.findStatic(
 114                     A.class, "package_static_x", MethodType.methodType(Class.class));
 115 
 116             B_PRIVATE_X = B.LOOKUP.findVirtual(
 117                     B.class, "private_x", MethodType.methodType(Class.class));
 118             B_PRIVATE_STATIC_X = B.LOOKUP.findStatic(
 119                     B.class, "private_static_x", MethodType.methodType(Class.class));
 120         } catch (Exception e) {
 121             throw new Error(e);
 122         }
 123     }
 124 
 125     static final A a = new B();
 126 
 127     private static void testPublicMH() {
 128         try {
 129             Class<?> r = (Class<?>)A_PUBLIC_X.invokeExact(a);
 130             assertEquals(r, B.class);
 131         } catch (Throwable throwable) {
 132             throw new Error(throwable);
 133         }
 134     }
 135 
 136     private static void testProtectedMH() {
 137         try {
 138             Class<?> r = (Class<?>)A_PROTECTED_X.invokeExact(a);
 139             assertEquals(r, B.class);
 140         } catch (Throwable throwable) {
 141             throw new Error(throwable);
 142         }
 143     }
 144 
 145     private static void testPackageMH() {
 146         try {
 147             Class<?> r = (Class<?>)A_PACKAGE_X.invokeExact(a);
 148             assertEquals(r, B.class);
 149         } catch (Throwable throwable) {
 150             throw new Error(throwable);
 151         }
 152     }
 153 
 154     private static void testPackageFinalMH() {
 155         try {
 156             Class<?> r = (Class<?>)A_PACKAGE_FINAL_X.invokeExact(a);
 157             assertEquals(r, A.class);
 158         } catch (Throwable throwable) {
 159             throw new Error(throwable);
 160         }
 161     }
 162 
 163     private static void testPackageStaticMH() {
 164         try {
 165             Class<?> r = (Class<?>)A_PACKAGE_STATIC_X.invokeExact();
 166             assertEquals(r, A.class);
 167         } catch (Throwable throwable) {
 168             throw new Error(throwable);
 169         }
 170     }
 171 
 172     private static void testPrivateMH() {
 173         try {
 174             Class<?> r = (Class<?>)B_PRIVATE_X.invokeExact((B)a);
 175             assertEquals(r, B.class);
 176         } catch (Throwable throwable) {
 177             throw new Error(throwable);
 178         }
 179     }
 180 
 181     private static void testPrivateStaticMH() {
 182         try {
 183             Class<?> r = (Class<?>)B_PRIVATE_STATIC_X.invokeExact();
 184             assertEquals(r, B.class);
 185         } catch (Throwable throwable) {
 186             throw new Error(throwable);
 187         }
 188     }
 189 
 190     static class Launcher {
 191         public static void main(String[] args) throws Exception {
 192             for (int i = 0; i < 20_000; i++) {
 193                 testPublicMH();
 194             }
 195             for (int i = 0; i < 20_000; i++) {
 196                 testProtectedMH();
 197             }
 198             for (int i = 0; i < 20_000; i++) {
 199                 testPackageMH();
 200             }
 201             for (int i = 0; i < 20_000; i++) {
 202                 testPackageFinalMH();
 203             }
 204             for (int i = 0; i < 20_000; i++) {
 205                 testPackageStaticMH();
 206             }
 207             for (int i = 0; i < 20_000; i++) {
 208                 testPrivateMH();
 209             }
 210             for (int i = 0; i < 20_000; i++) {
 211                 testPrivateStaticMH();
 212             }
 213         }
 214     }
 215 }