/* * Copyright (c) 2015, 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 * @bug 8073184 * @summary CastII that guards counted loops confuses range check elimination with LoopLimitCheck off * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:CompileOnly=TestCastIINoLoopLimitCheck.m -Xcomp TestCastIINoLoopLimitCheck * */ /* * The test was originally run with * * -XX:+UnlockDiagnosticVMOptions -XX:-LoopLimitCheck * * to trigger a problem with code guarded with !LoopLimitCheck. * JDK-8072422 has removed that code but kept the test because the * test generates an interesting graph shape. */ public class TestCastIINoLoopLimitCheck { static void m(int i, int index, char[] buf) { while (i >= 65536) { i = i / 100; buf [--index] = 0; buf [--index] = 1; } } static public void main(String[] args) { m(0, 0, null); } }