/* * Copyright (c) 2024, 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 * @key stress randomness * @bug 8342809 * @summary Test that a top input into an IfTrue of an Assertion Predicate is properly handled during IGVN. * @requires vm.compiler2.enabled * @run main/othervm -XX:CompileCommand=compileonly,compiler.predicates.TestTopIntoIfTrue::test -XX:-TieredCompilation * -Xcomp -XX:+UnlockDiagnosticVMOptions -XX:+StressIGVN -XX:StressSeed=1073486978 * compiler.predicates.TestTopIntoIfTrue * @run main/othervm -XX:CompileCommand=compileonly,compiler.predicates.TestTopIntoIfTrue::test -XX:-TieredCompilation * -Xcomp -XX:+UnlockDiagnosticVMOptions -XX:+StressIGVN compiler.predicates.TestTopIntoIfTrue */ package compiler.predicates; public class TestTopIntoIfTrue { static int iFld; public static void main(String[] strArr) { for (int i = 0; i < 100; i++) { test(); } } static void test() { int x = 10; for (int i = 1; i < 326; ++i) { x += 12; if (x != 0) { Unloaded.trap(); // unloaded trap } iFld += 34; } } } class Unloaded { static void trap() {} }