author | erikj |
Tue, 12 Sep 2017 19:03:39 +0200 | |
changeset 47216 | 71c04702a3d5 |
parent 46663 | hotspot/test/compiler/c1/TestPinnedIntrinsics.java@715d5f268f62 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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|
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/* |
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* @test |
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* @bug 8184271 |
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* @summary Test correct scheduling of System.nanoTime and System.currentTimeMillis C1 intrinsics. |
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* @run main/othervm -XX:TieredStopAtLevel=1 -Xbatch |
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* -XX:CompileCommand=dontinline,compiler.c1.TestPinnedIntrinsics::checkNanoTime |
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* -XX:CompileCommand=dontinline,compiler.c1.TestPinnedIntrinsics::checkCurrentTimeMillis |
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* compiler.c1.TestPinnedIntrinsics |
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*/ |
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package compiler.c1; |
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public class TestPinnedIntrinsics { |
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private static void testNanoTime() { |
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long start = System.nanoTime(); |
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long end = System.nanoTime(); |
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checkNanoTime(end - start); |
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} |
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private static void checkNanoTime(long diff) { |
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if (diff < 0) { |
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throw new RuntimeException("testNanoTime failed with " + diff); |
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} |
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} |
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private static void testCurrentTimeMillis() { |
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long start = System.currentTimeMillis(); |
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long end = System.currentTimeMillis(); |
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checkCurrentTimeMillis(end - start); |
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} |
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private static void checkCurrentTimeMillis(long diff) { |
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if (diff < 0) { |
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throw new RuntimeException("testCurrentTimeMillis failed with " + diff); |
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} |
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} |
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public static void main(String[] args) { |
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for (int i = 0; i < 100_000; ++i) { |
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testNanoTime(); |
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testCurrentTimeMillis(); |
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} |
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} |
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} |