| /* |
| * Copyright (c) 2016, 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 8148490 |
| * @summary Test correct saving and restoring of vector registers at safepoints. |
| * |
| * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -Xbatch -XX:-TieredCompilation |
| * -XX:+SafepointALot |
| * -XX:CompileCommand=exclude,compiler.runtime.safepoints.TestRegisterRestoring::main |
| * compiler.runtime.safepoints.TestRegisterRestoring |
| */ |
| |
| package compiler.runtime.safepoints; |
| |
| public class TestRegisterRestoring { |
| public static void main(String args[]) throws Exception { |
| // Initialize |
| float[] array = new float[100]; |
| for (int i = 0; i < array.length; ++i) { |
| array[i] = 0; |
| } |
| // Test |
| for (int j = 0; j < 20_000; ++j) { |
| increment(array); |
| // Check result |
| for (int i = 0; i < array.length; i++) { |
| if (array[i] != 10_000) { |
| throw new RuntimeException("Test failed: array[" + i + "] = " + array[i] + " but should be 10.000"); |
| } |
| array[i] = 0; |
| } |
| } |
| } |
| |
| static void increment(float[] array) { |
| // Loop with safepoint |
| for (long l = 0; l < 10_000; l++) { |
| // Vectorized loop |
| for (int i = 0; i < array.length; ++i) { |
| array[i] += 1; |
| } |
| } |
| } |
| } |
| |