# HG changeset patch # User shade # Date 1567416672 -7200 # Node ID 47ce198d5cf116f4b9bd0dc6018e2981fddc9c3d # Parent a333fdeb8de0ac244d690346b4db8eca9911c402 8230238: Add another regression test for JDK-8134739 Reviewed-by: kvn diff -r a333fdeb8de0 -r 47ce198d5cf1 test/hotspot/jtreg/compiler/loopopts/superword/TestFuzzPreLoop.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/hotspot/jtreg/compiler/loopopts/superword/TestFuzzPreLoop.java Mon Sep 02 11:31:12 2019 +0200 @@ -0,0 +1,65 @@ +/* + * 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 8134739 + * @summary SEGV in SuperWord::get_pre_loop_end + * @run main/othervm compiler.loopopts.superword.TestFuzzPreLoop + */ + +package compiler.loopopts.superword; + +public class TestFuzzPreLoop { + static Object sink; + short sFld = -19206; + + void doTest() { + int[] arr = new int[400]; + + for (int i1 = 0; i1 < 200; i1++) { + for (int i2 = 0; i2 < 100; i2++) { + sink = new int[400]; + } + arr[i1] = 0; + } + + float f1 = 0; + for (int i3 = 0; i3 < 200; i3++) { + f1 += i3 * i3; + } + for (int i4 = 0; i4 < 200; i4++) { + f1 += i4 - sFld; + } + + System.out.println(arr); + System.out.println(f1); + } + + public static void main(String... args) throws Exception { + TestFuzzPreLoop test = new TestFuzzPreLoop(); + for (int i = 0; i < 100; i++) { + test.doTest(); + } + } +}