| /* |
| * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test |
| * @library /test/lib / |
| * |
| * @run driver compiler.jsr292.ContinuousCallSiteTargetChange |
| */ |
| |
| package compiler.jsr292; |
| |
| import jdk.test.lib.Asserts; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.process.ProcessTools; |
| |
| import java.lang.invoke.CallSite; |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodHandles; |
| import java.lang.invoke.MethodType; |
| import java.lang.invoke.MutableCallSite; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| public class ContinuousCallSiteTargetChange { |
| static final int ITERATIONS = Integer.parseInt(System.getProperty("iterations", "50")); |
| |
| static void runTest(Class<?> test, String... extraArgs) throws Exception { |
| List<String> argsList = new ArrayList<>( |
| List.of("-XX:+IgnoreUnrecognizedVMOptions", |
| "-XX:PerBytecodeRecompilationCutoff=10", "-XX:PerMethodRecompilationCutoff=10", |
| "-XX:+PrintCompilation", "-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintInlining")); |
| |
| argsList.addAll(Arrays.asList(extraArgs)); |
| |
| argsList.add(test.getName()); |
| argsList.add(Integer.toString(ITERATIONS)); |
| |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
| argsList.toArray(new String[argsList.size()])); |
| |
| OutputAnalyzer analyzer = new OutputAnalyzer(pb.start()); |
| |
| analyzer.shouldHaveExitValue(0); |
| |
| analyzer.shouldNotContain("made not compilable"); |
| analyzer.shouldNotContain("decompile_count > PerMethodRecompilationCutoff"); |
| |
| } |
| |
| static void testServer(Class<?> test, String... args) throws Exception { |
| List<String> extraArgsList = new ArrayList<>( |
| List.of("-server", "-XX:-TieredCompilation")); |
| extraArgsList.addAll(Arrays.asList(args)); |
| |
| runTest(test, extraArgsList.toArray(new String[extraArgsList.size()])); |
| } |
| |
| static void testClient(Class<?> test, String... args) throws Exception { |
| List<String> extraArgsList = new ArrayList<>( |
| List.of("-client", "-XX:+TieredCompilation", "-XX:TieredStopAtLevel=1")); |
| extraArgsList.addAll(Arrays.asList(args)); |
| |
| runTest(test, extraArgsList.toArray(new String[extraArgsList.size()])); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| testServer(RecompilationTest.class, "-Xbatch"); |
| testClient(RecompilationTest.class, "-Xbatch"); |
| |
| testServer(PingPongTest.class); |
| testClient(PingPongTest.class); |
| } |
| |
| static MethodHandle findStatic(Class<?> cls, String name, MethodType mt) { |
| try { |
| return MethodHandles.lookup().findStatic(cls, name, mt); |
| } catch (Exception e) { |
| throw new Error(e); |
| } |
| } |
| |
| static class RecompilationTest { |
| static final MethodType mt = MethodType.methodType(void.class); |
| static final CallSite cs = new MutableCallSite(mt); |
| |
| static final MethodHandle mh = cs.dynamicInvoker(); |
| |
| static void f() { |
| } |
| |
| static void test1() throws Throwable { |
| mh.invokeExact(); |
| } |
| |
| static void test2() throws Throwable { |
| cs.getTarget().invokeExact(); |
| } |
| |
| static void iteration() throws Throwable { |
| MethodHandle mh1 = findStatic(RecompilationTest.class, "f", mt); |
| cs.setTarget(mh1); |
| for (int i = 0; i < 20_000; i++) { |
| test1(); |
| test2(); |
| } |
| } |
| |
| public static void main(String[] args) throws Throwable { |
| int iterations = Integer.parseInt(args[0]); |
| for (int i = 0; i < iterations; i++) { |
| iteration(); |
| } |
| } |
| } |
| |
| static class PingPongTest { |
| static final MethodType mt = MethodType.methodType(void.class); |
| static final CallSite cs = new MutableCallSite(mt); |
| |
| static final MethodHandle mh = cs.dynamicInvoker(); |
| |
| static final MethodHandle ping = findStatic(PingPongTest.class, "ping", mt); |
| static final MethodHandle pong = findStatic(PingPongTest.class, "pong", mt); |
| |
| static void ping() { |
| Asserts.assertEQ(cs.getTarget(), ping, "wrong call site target"); |
| cs.setTarget(pong); |
| } |
| |
| static void pong() { |
| Asserts.assertEQ(cs.getTarget(), pong, "wrong call site target"); |
| cs.setTarget(ping); |
| } |
| |
| static void iteration() throws Throwable { |
| cs.setTarget(ping); |
| for (int i = 0; i < 20_000; i++) { |
| mh.invokeExact(); |
| } |
| } |
| |
| public static void main(String[] args) throws Throwable { |
| int iterations = Integer.parseInt(args[0]); |
| for (int i = 0; i < iterations; i++) { |
| iteration(); |
| } |
| } |
| } |
| } |