author | weijun |
Tue, 30 Aug 2011 10:46:27 +0800 | |
changeset 10416 | 61d6ccadbfa2 |
parent 5547 | f4b087cbb361 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008, 2009, 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 6778657 |
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* @summary Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour |
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*/ |
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public class Test { |
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public static void check_f2i(int expect) { |
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float check = expect; |
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check *= 2; |
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int actual = (int) check; |
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if (actual != expect) |
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throw new RuntimeException("expecting " + expect + ", got " + actual); |
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} |
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public static void check_f2l(long expect) { |
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float check = expect; |
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check *= 2; |
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long actual = (long) check; |
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if (actual != expect) |
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throw new RuntimeException("expecting " + expect + ", got " + actual); |
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} |
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public static void check_d2i(int expect) { |
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double check = expect; |
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check *= 2; |
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int actual = (int) check; |
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if (actual != expect) |
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throw new RuntimeException("expecting " + expect + ", got " + actual); |
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} |
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public static void check_d2l(long expect) { |
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double check = expect; |
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check *= 2; |
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long actual = (long) check; |
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if (actual != expect) |
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throw new RuntimeException("expecting " + expect + ", got " + actual); |
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} |
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public static void main(String[] args) { |
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check_f2i(Integer.MAX_VALUE); |
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check_f2i(Integer.MIN_VALUE); |
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check_f2l(Long.MAX_VALUE); |
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check_f2l(Long.MIN_VALUE); |
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check_d2i(Integer.MAX_VALUE); |
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check_d2i(Integer.MIN_VALUE); |
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check_d2l(Long.MAX_VALUE); |
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check_d2l(Long.MIN_VALUE); |
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} |
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} |
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