| /* |
| * Copyright (c) 2015, 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 8131969 |
| * @summary assert in register allocation code when vector Phi for a loop is processed because code assumes all inputs already processed |
| * @run main/othervm -Xbatch TestVectorRegAlloc |
| * |
| */ |
| |
| public class TestVectorRegAlloc { |
| |
| static int test_helper_i; |
| static boolean test_helper() { |
| test_helper_i++; |
| return (test_helper_i & 7) != 0; |
| } |
| |
| static void test(double[] src, double[] dst, boolean flag) { |
| double j = 0.0; |
| while(test_helper()) { |
| for (int i = 0; i < src.length; i++) { |
| dst[i] = src[i] + j; |
| } |
| // Loop will be unswitched and ReplicateD of zero will be |
| // split through the Phi of outer loop |
| for (int i = 0; i < src.length; i++) { |
| double k; |
| if (flag) { |
| k = j; |
| } else { |
| k = 0; |
| } |
| dst[i] = src[i] + k; |
| } |
| j++; |
| } |
| } |
| |
| static public void main(String[] args) { |
| double[] src = new double[10]; |
| double[] dst = new double[10]; |
| for (int i = 0; i < 20000; i++) { |
| test(src, dst, (i % 2) == 0); |
| } |
| } |
| } |