/* * Copyright (c) 2023, 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 8314116 * @summary We fail to remove a Template Assertion Predicate of a dying loop causing an assert. This will only be fixed * completely with JDK-8288981 and 8314116 just mitigates the problem. * @requires vm.compiler2.enabled * @run main/othervm -Xbatch -XX:-TieredCompilation * -XX:CompileCommand=compileonly,compiler.predicates.TestTemplateAssertionPredicateNotRemoved::* * compiler.predicates.TestTemplateAssertionPredicateNotRemoved * @run main/othervm -Xbatch -XX:-TieredCompilation -XX:LoopMaxUnroll=0 * -XX:CompileCommand=compileonly,compiler.predicates.TestTemplateAssertionPredicateNotRemoved::* * compiler.predicates.TestTemplateAssertionPredicateNotRemoved */ package compiler.predicates; public class TestTemplateAssertionPredicateNotRemoved { static int[] iArrFld = new int[10]; static long x; public static void main(String[] strArr) { for (int i = 0; i < 10000; i++) { test(i); test2(i); } } static void test(int i1) { int i5, i6 = 8; for (int i3 = 100; i3 > 3; --i3) { for (i5 = 1; i5 < 5; i5++) { switch (i1) { case 1: case 4: case 47: i6 = 4; } iArrFld[i5] = 23; } } } static void test2(int i1) { int i3, i4 = 70, i5, i6 = 8, iArr1[] = new int[10]; double d1 = 0.41007; for (i3 = 100; i3 > 3; --i3) { i4 += 3; for (i5 = 1; i5 < 5; i5++) { switch (i1) { case 1: case 4: case 47: i6 = 34; } x /= 34; iArrFld[i5] = 23; } } } }