/* * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2019, Red Hat, Inc. 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 8234350 * @summary loop unrolling breaks when outer strip mined loop contains dead node * * @run main/othervm -Xcomp -XX:-TieredCompilation -XX:CompileOnly=DeadNodesInOuterLoopAtLoopCloning2::* DeadNodesInOuterLoopAtLoopCloning2 * */ public class DeadNodesInOuterLoopAtLoopCloning2 { public static void vMeth(boolean b, int i, float f) { int i1=-4, i2=14, i16=10; byte by=116; for (i1 = 323; i1 > 3; i1 -= 2) { if (i2 != 0) { return; } for (i16 = 1; i16 < 10; i16++) { i2 = by; i += (i16 - i2); i2 -= i16; if (b) { i = by; } i2 *= 20; } } } public static void main(String[] strArr) { DeadNodesInOuterLoopAtLoopCloning2 _instance = new DeadNodesInOuterLoopAtLoopCloning2(); for (int i = 0; i < 10; i++ ) { _instance.vMeth(true, 168, -125.661F); } } }