--- /dev/null 2017-01-22 10:16:57.869617664 -0800 +++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.jtt/src/org/graalvm/compiler/jtt/loop/LoopEscape.java 2017-02-15 17:03:25.121211703 -0800 @@ -0,0 +1,110 @@ +/* + * Copyright (c) 2012, 2012, 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. + */ +// Checkstyle: stop +package org.graalvm.compiler.jtt.loop; + +import org.junit.Test; + +import org.graalvm.compiler.jtt.JTTTest; + +/* + * Test around an object that escapes directly from inside a loop (no virtual phi on the loop) + */ +public class LoopEscape extends JTTTest { + + public static L ll = new L(0, 1, 2); + + private static class L { + + public int a; + public int b; + public int c; + + public L(int a, int b, int c) { + this.a = a; + this.b = b; + this.c = c; + } + } + + public static int test0(int count) { + L l = new L(5, 5, 5); + for (int i = 0; i < count; i++) { + l.a++; + l.b--; + l.c = 4; + } + + return l.a + l.b * 10 + l.c * 100; + } + + public static int test1(int count) { + L l = new L(5, 5, 5); + for (int i = 0; i < count; i++) { + if (l.a % 2 == 0) { + l.a++; + l.b--; + l.c = 4; + } else { + l.a++; + } + } + + return l.a + l.b * 10 + l.c * 100; + } + + @Test + public void run10() throws Throwable { + runTest("test1", 0); + } + + @Test + public void run11() throws Throwable { + runTest("test1", 1); + } + + @Test + public void run12() throws Throwable { + runTest("test1", 2); + } + + @Test + public void run00() throws Throwable { + runTest("test0", 0); + } + + @Test + public void run01() throws Throwable { + runTest("test0", 1); + } + + @Test + public void run02() throws Throwable { + runTest("test0", 2); + } + + @Test + public void run05() throws Throwable { + runTest("test0", 5); + } +}