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 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8072008 27 * @library /testlibrary /test/lib ../patches 28 * @modules java.base/jdk.internal.misc 29 * @modules java.base/jdk.internal.vm.annotation 30 * @build java.base/java.lang.invoke.MethodHandleHelper 31 * @build sun.hotspot.WhiteBox 32 * @run main/bootclasspath/othervm -XX:+IgnoreUnrecognizedVMOptions 33 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI 34 * -Xbatch -XX:-TieredCompilation -XX:CICompilerCount=1 35 * -XX:+FoldStableValues 36 * compiler.jsr292.NonInlinedCall.GCTest 37 */ 38 39 package compiler.jsr292.NonInlinedCall; 40 41 import java.lang.invoke.MethodHandleHelper; 42 import java.lang.invoke.MethodHandleHelper.NonInlinedReinvoker; 43 import java.lang.invoke.MethodHandles; 44 import java.lang.invoke.MethodHandle; 45 46 import java.lang.invoke.MethodType; 47 import java.lang.ref.PhantomReference; 48 import java.lang.ref.Reference; 49 import java.lang.ref.ReferenceQueue; 50 51 import jdk.internal.vm.annotation.DontInline; 52 import jdk.internal.vm.annotation.Stable; 53 54 import sun.hotspot.WhiteBox; 55 56 import static jdk.test.lib.Asserts.*; 57 58 public class GCTest { 59 static final MethodHandles.Lookup LOOKUP = MethodHandleHelper.IMPL_LOOKUP; 60 61 static class T { 62 static int f1() { return 0; } 63 static int f2() { return 1; } 64 } 65 66 static @Stable MethodHandle mh; 67 static PhantomReference<Object> lform; 68 69 static final ReferenceQueue<Object> rq = new ReferenceQueue<>(); 70 static final WhiteBox WB = WhiteBox.getWhiteBox(); 71 72 @DontInline 73 static int invokeBasic() { 74 try { 75 return MethodHandleHelper.invokeBasicI(mh); 76 } catch (Throwable e) { 77 throw new Error(e); 78 } 79 } 80 81 static void test(int expected) { 82 for (int i = 0; i < 20_000; i++) { 83 invokeBasic(); 84 } 85 assertEquals(invokeBasic(), expected); 86 } 87 88 public static void main(String[] args) throws Exception { 89 mh = NonInlinedReinvoker.make( 90 LOOKUP.findStatic(T.class, "f1", MethodType.methodType(int.class))); 91 92 // Monitor LambdaForm GC 93 lform = new PhantomReference<>(MethodHandleHelper.getLambdaForm(mh), rq); 94 95 test(0); 96 WB.clearInlineCaches(); 97 test(0); 98 99 mh = NonInlinedReinvoker.make( 100 LOOKUP.findStatic(T.class, "f2", MethodType.methodType(int.class))); 101 102 Reference<?> ref = null; 103 while (ref == null) { 104 WB.fullGC(); 105 try { 106 ref = rq.remove(1000); 107 } catch (InterruptedException e) { /*ignore*/ } 108 } 109 110 test(1); 111 WB.clearInlineCaches(); 112 test(1); 113 114 System.out.println("TEST PASSED"); 115 } 116 }