| /* |
| * Copyright (c) 2017, 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 8184271 |
| * @summary Test correct scheduling of System.nanoTime and System.currentTimeMillis C1 intrinsics. |
| * @run main/othervm -XX:TieredStopAtLevel=1 -Xbatch |
| * -XX:CompileCommand=dontinline,compiler.c1.TestPinnedIntrinsics::checkNanoTime |
| * -XX:CompileCommand=dontinline,compiler.c1.TestPinnedIntrinsics::checkCurrentTimeMillis |
| * compiler.c1.TestPinnedIntrinsics |
| */ |
| |
| package compiler.c1; |
| |
| public class TestPinnedIntrinsics { |
| |
| private static void testNanoTime() { |
| long start = System.nanoTime(); |
| long end = System.nanoTime(); |
| checkNanoTime(end - start); |
| } |
| |
| private static void checkNanoTime(long diff) { |
| if (diff < 0) { |
| throw new RuntimeException("testNanoTime failed with " + diff); |
| } |
| } |
| |
| private static void testCurrentTimeMillis() { |
| long start = System.currentTimeMillis(); |
| long end = System.currentTimeMillis(); |
| checkCurrentTimeMillis(end - start); |
| } |
| |
| private static void checkCurrentTimeMillis(long diff) { |
| if (diff < 0) { |
| throw new RuntimeException("testCurrentTimeMillis failed with " + diff); |
| } |
| } |
| |
| public static void main(String[] args) { |
| for (int i = 0; i < 100_000; ++i) { |
| testNanoTime(); |
| testCurrentTimeMillis(); |
| } |
| } |
| } |