Tue, 20 Aug 2019 07:47:13 +0200
8228888: C2 compilation fails with assert "m has strange control"
Summary: Weakened too strong assert.
Reviewed-by: kvn, roland
thartmann@9782 | 1 | /* |
thartmann@9782 | 2 | * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
thartmann@9782 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
thartmann@9782 | 4 | * |
thartmann@9782 | 5 | * This code is free software; you can redistribute it and/or modify it |
thartmann@9782 | 6 | * under the terms of the GNU General Public License version 2 only, as |
thartmann@9782 | 7 | * published by the Free Software Foundation. |
thartmann@9782 | 8 | * |
thartmann@9782 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
thartmann@9782 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
thartmann@9782 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
thartmann@9782 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
thartmann@9782 | 13 | * accompanied this code). |
thartmann@9782 | 14 | * |
thartmann@9782 | 15 | * You should have received a copy of the GNU General Public License version |
thartmann@9782 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
thartmann@9782 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
thartmann@9782 | 18 | * |
thartmann@9782 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
thartmann@9782 | 20 | * or visit www.oracle.com if you need additional information or have any |
thartmann@9782 | 21 | * questions. |
thartmann@9782 | 22 | * |
thartmann@9782 | 23 | */ |
thartmann@9782 | 24 | |
thartmann@9782 | 25 | /* |
thartmann@9782 | 26 | * @test |
thartmann@9782 | 27 | * @bug 8228888 |
thartmann@9782 | 28 | * @summary Test PhaseIdealLoop::has_local_phi_input() with phi input with non-dominating control. |
thartmann@9782 | 29 | * @compile StrangeControl.jasm |
thartmann@9782 | 30 | * @run main/othervm -Xbatch -XX:CompileCommand=inline,compiler.loopopts.StrangeControl::test |
thartmann@9782 | 31 | * compiler.loopopts.TestStrangeControl |
thartmann@9782 | 32 | */ |
thartmann@9782 | 33 | |
thartmann@9782 | 34 | package compiler.loopopts; |
thartmann@9782 | 35 | |
thartmann@9782 | 36 | public class TestStrangeControl { |
thartmann@9782 | 37 | |
thartmann@9782 | 38 | public static void main(String[] args) throws Exception { |
thartmann@9782 | 39 | Thread thread = new Thread() { |
thartmann@9782 | 40 | public void run() { |
thartmann@9782 | 41 | // Run this in an own thread because it's basically an endless loop |
thartmann@9782 | 42 | StrangeControl.test(42); |
thartmann@9782 | 43 | } |
thartmann@9782 | 44 | }; |
thartmann@9782 | 45 | thread.start(); |
thartmann@9782 | 46 | // Give thread executing strange control loop enough time to trigger OSR compilation |
thartmann@9782 | 47 | Thread.sleep(4000); |
thartmann@9782 | 48 | } |
thartmann@9782 | 49 | } |