hotspot/test/compiler/intrinsics/mathexact/LoopDependentTest.java
author rbackman
Fri, 27 Sep 2013 08:39:19 +0200
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permissions -rw-r--r--
8024924: Intrinsify java.lang.Math.addExact Reviewed-by: kvn, twisti
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/*
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 * Copyright (c) 2013, 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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 * @test
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 * @bug 8024924
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 * @summary Test non constant addExact
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 * @compile LoopDependentTest.java Verify.java
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 * @run main LoopDependentTest
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 *
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 */
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import java.lang.ArithmeticException;
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public class LoopDependentTest {
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  public static java.util.Random rnd = new java.util.Random();
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  public static void main(String[] args) {
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    int rnd1 = rnd.nextInt(), rnd2 = rnd.nextInt();
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    for (int i = 0; i < 50000; ++i) {
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      Verify.verify(rnd1 + i, rnd2 + i);
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      Verify.verify(rnd1 + i, rnd2 + (i & 0xff));
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      Verify.verify(rnd1 - i, rnd2 - (i & 0xff));
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      Verify.verify(rnd1 + i + 1, rnd2 + i + 2);
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      Verify.verify(rnd1 + i * 2, rnd2 + i);
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    }
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  }
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}