/* * 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 8309268 * @summary Test loop invariant input to Cmp. * * @run main/othervm -Xcomp -XX:-TieredCompilation * -XX:CompileCommand=compileonly,compiler.loopopts.superword.TestCmpInvar::test* * compiler.loopopts.superword.TestCmpInvar */ package compiler.loopopts.superword; public class TestCmpInvar { static int N = 400; static long myInvar; static void test1(int limit, float fcon) { boolean a[] = new boolean[1000]; for (int i = 0; i < limit; i++) { a[i] = fcon > i; } } static void test2(int limit, float fcon) { boolean a[] = new boolean[1000]; for (int i = 0; i < limit; i++) { a[i] = i > fcon; } } static int test3() { int[] a = new int[N]; int acc = 0; for (int i = 1; i < 63; i++) { acc += Math.min(myInvar, a[i]--); } return acc; } static int test4() { int[] a = new int[N]; int acc = 0; for (int i = 1; i < 63; i++) { acc += Math.min(a[i]--, myInvar); } return acc; } public static void main(String[] strArr) { for (int i = 0; i < 10_100; i++) { test1(500, 80.1f); } for (int i = 0; i < 10_100; i++) { test2(500, 80.1f); } for (int i = 0; i < 10_000; i++) { test3(); } for (int i = 0; i < 10_000; i++) { test4(); } } }