/* * Copyright (c) 2017, 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 8191153 * @summary too strong assert from 8186125 * * @run main/othervm -XX:-BackgroundCompilation -XX:CompileCommand=dontinline,TestSplitIfPinnedCMove::not_inlined -XX:CompileOnly=TestSplitIfPinnedCMove::test TestSplitIfPinnedCMove * */ public class TestSplitIfPinnedCMove { static void not_inlined() {} static class A { A(int f) { this.f = f; } int f; } static int test(int i1, int i3, A a1, A a2) { // loops to trigger more loop optimization passes int res = 0; for (int i = 0; i < 2; i++) { for (int j = 0; j < 2; j++) { for (int k = 0; k < 2; k++) { res++; } } } // null check a1 and a2 res += a1.f + a2.f; boolean f2 = false; if (i1 > 0) { not_inlined(); f2 = true; } // Should become CMoveP and be pinned here res += (i3 > 0 ? a1 : a2).f; // f2 should be split through phi with above if if (f2) { not_inlined(); res += 42; } // Another use for i3 > 0 if (i3 > 0) { res++; } return res; } public static void main(String[] args) { A a = new A(42); for (int i = 0; i < 20_000; i++) { test((i % 2) == 0 ? 0 : 1, (i % 2) == 0 ? 0 : 1, a, a); } } }