Mercurial > hg > truffle
view test/compiler/whitebox/DeoptimizeMultipleOSRTest.java @ 20884:dc41766b35e1
ensure Graal's GenericInvocationPlugin is used by Truffle FastPE
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Fri, 10 Apr 2015 13:10:56 +0200 |
parents | 3c87c13918fb |
children |
line wrap: on
line source
/* * Copyright (c) 2013, 2014, 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. */ import sun.hotspot.WhiteBox; import java.lang.reflect.Executable; import java.lang.reflect.Method; /* * @test DeoptimizeMultipleOSRTest * @bug 8061817 * @library /testlibrary /testlibrary/whitebox * @build DeoptimizeMultipleOSRTest * @run main ClassFileInstaller sun.hotspot.WhiteBox * sun.hotspot.WhiteBox$WhiteBoxPermission * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,DeoptimizeMultipleOSRTest::triggerOSR DeoptimizeMultipleOSRTest * @summary testing of WB::deoptimizeMethod() */ public class DeoptimizeMultipleOSRTest { private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox(); private static final long BACKEDGE_THRESHOLD = 150000; private Method method; private int counter = 0; public static void main(String[] args) throws Exception { DeoptimizeMultipleOSRTest test = new DeoptimizeMultipleOSRTest(); test.test(); } /** * Triggers two different OSR compilations for the same method and * checks if WhiteBox.deoptimizeMethod() deoptimizes both. * * @throws Exception */ public void test() throws Exception { method = DeoptimizeMultipleOSRTest.class.getDeclaredMethod("triggerOSR", boolean.class, long.class); // Trigger two OSR compiled versions triggerOSR(true, BACKEDGE_THRESHOLD); triggerOSR(false, BACKEDGE_THRESHOLD); // Wait for compilation CompilerWhiteBoxTest.waitBackgroundCompilation(method); // Deoptimize WHITE_BOX.deoptimizeMethod(method, true); if (WHITE_BOX.isMethodCompiled(method, true)) { throw new AssertionError("Not all OSR compiled versions were deoptimized"); } } /** * Triggers OSR compilations by executing loops. * * @param first Determines which loop to execute * @param limit The number of loop iterations */ public void triggerOSR(boolean first, long limit) { if (limit != 1) { // Warmup method to avoid uncommon traps for (int i = 0; i < limit; ++i) { triggerOSR(first, 1); } CompilerWhiteBoxTest.waitBackgroundCompilation(method); } if (first) { // Trigger OSR compilation 1 for (int i = 0; i < limit; ++i) { counter++; } } else { // Trigger OSR compilation 2 for (int i = 0; i < limit; ++i) { counter++; } } } }