--- /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/hotspot/Test6753639.java 2017-02-15 17:02:38.439166711 -0800 @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2011, 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. + */ +package org.graalvm.compiler.jtt.hotspot; + +import org.junit.Test; + +import org.graalvm.compiler.jtt.JTTTest; + +/** + * @test + * @bug 6753639 + * @summary Strange optimisation in for loop with cyclic integer condition + * + * @run main/othervm -Xbatch Test6753639 + */ +// @formatter:off +public class Test6753639 extends JTTTest { + + public static int test() { + int end = Integer.MAX_VALUE; + int count = 0; + for (int i = Integer.MAX_VALUE - 5; i <= end; i++) { + count++; + if (count > 100000) { + return 95; + } + } + return 97; + } + + @Test + public void run0() throws Throwable { + runTest("test"); + } + +}