1 /* 2 * Copyright (c) 2016, 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 * @modules java.base/jdk.internal.misc 27 * @library /testlibrary / 28 * 29 * @run driver compiler.jsr292.ContinuousCallSiteTargetChange 30 */ 31 32 package compiler.jsr292; 33 34 import jdk.test.lib.OutputAnalyzer; 35 import jdk.test.lib.ProcessTools; 36 37 import java.lang.invoke.CallSite; 38 import java.lang.invoke.MethodHandle; 39 import java.lang.invoke.MethodHandles; 40 import java.lang.invoke.MethodType; 41 import java.lang.invoke.MutableCallSite; 42 43 public class ContinuousCallSiteTargetChange { 44 static void testServer() throws Exception { 45 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 46 "-XX:+IgnoreUnrecognizedVMOptions", 47 "-server", "-XX:-TieredCompilation", "-Xbatch", 48 "-XX:PerBytecodeRecompilationCutoff=10", "-XX:PerMethodRecompilationCutoff=10", 49 "-XX:+PrintCompilation", "-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintInlining", 50 Test.class.getName(), "100"); 51 52 OutputAnalyzer analyzer = new OutputAnalyzer(pb.start()); 53 54 analyzer.shouldHaveExitValue(0); 55 56 analyzer.shouldNotContain("made not compilable"); 57 analyzer.shouldNotContain("decompile_count > PerMethodRecompilationCutoff"); 58 } 59 60 static void testClient() throws Exception { 61 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 62 "-XX:+IgnoreUnrecognizedVMOptions", 63 "-client", "-XX:+TieredCompilation", "-XX:TieredStopAtLevel=1", "-Xbatch", 64 "-XX:PerBytecodeRecompilationCutoff=10", "-XX:PerMethodRecompilationCutoff=10", 65 "-XX:+PrintCompilation", "-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintInlining", 66 Test.class.getName(), "100"); 67 68 OutputAnalyzer analyzer = new OutputAnalyzer(pb.start()); 69 70 analyzer.shouldHaveExitValue(0); 71 72 analyzer.shouldNotContain("made not compilable"); 73 analyzer.shouldNotContain("decompile_count > PerMethodRecompilationCutoff"); 74 } 75 76 public static void main(String[] args) throws Exception { 77 testServer(); 78 testClient(); 79 } 80 81 static class Test { 82 static final MethodType mt = MethodType.methodType(void.class); 83 static final CallSite cs = new MutableCallSite(mt); 84 85 static final MethodHandle mh = cs.dynamicInvoker(); 86 87 static void f() { 88 } 89 90 static void test1() throws Throwable { 91 mh.invokeExact(); 92 } 93 94 static void test2() throws Throwable { 95 cs.getTarget().invokeExact(); 96 } 97 98 static void iteration() throws Throwable { 99 MethodHandle mh1 = MethodHandles.lookup().findStatic(ContinuousCallSiteTargetChange.Test.class, "f", mt); 100 cs.setTarget(mh1); 101 for (int i = 0; i < 20_000; i++) { 102 test1(); 103 test2(); 104 } 105 } 106 107 public static void main(String[] args) throws Throwable { 108 int iterations = Integer.parseInt(args[0]); 109 for (int i = 0; i < iterations; i++) { 110 iteration(); 111 } 112 } 113 } 114 }