Wed, 27 Apr 2016 01:25:04 +0800
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2008, 2009, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | * |
aoqi@0 | 23 | */ |
aoqi@0 | 24 | |
aoqi@0 | 25 | /* |
aoqi@0 | 26 | * @test |
aoqi@0 | 27 | * @bug 6778657 |
aoqi@0 | 28 | * @summary Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour |
aoqi@0 | 29 | */ |
aoqi@0 | 30 | |
aoqi@0 | 31 | public class Test { |
aoqi@0 | 32 | public static void check_f2i(int expect) { |
aoqi@0 | 33 | float check = expect; |
aoqi@0 | 34 | check *= 2; |
aoqi@0 | 35 | int actual = (int) check; |
aoqi@0 | 36 | if (actual != expect) |
aoqi@0 | 37 | throw new RuntimeException("expecting " + expect + ", got " + actual); |
aoqi@0 | 38 | } |
aoqi@0 | 39 | |
aoqi@0 | 40 | public static void check_f2l(long expect) { |
aoqi@0 | 41 | float check = expect; |
aoqi@0 | 42 | check *= 2; |
aoqi@0 | 43 | long actual = (long) check; |
aoqi@0 | 44 | if (actual != expect) |
aoqi@0 | 45 | throw new RuntimeException("expecting " + expect + ", got " + actual); |
aoqi@0 | 46 | } |
aoqi@0 | 47 | |
aoqi@0 | 48 | public static void check_d2i(int expect) { |
aoqi@0 | 49 | double check = expect; |
aoqi@0 | 50 | check *= 2; |
aoqi@0 | 51 | int actual = (int) check; |
aoqi@0 | 52 | if (actual != expect) |
aoqi@0 | 53 | throw new RuntimeException("expecting " + expect + ", got " + actual); |
aoqi@0 | 54 | } |
aoqi@0 | 55 | |
aoqi@0 | 56 | public static void check_d2l(long expect) { |
aoqi@0 | 57 | double check = expect; |
aoqi@0 | 58 | check *= 2; |
aoqi@0 | 59 | long actual = (long) check; |
aoqi@0 | 60 | if (actual != expect) |
aoqi@0 | 61 | throw new RuntimeException("expecting " + expect + ", got " + actual); |
aoqi@0 | 62 | } |
aoqi@0 | 63 | |
aoqi@0 | 64 | public static void main(String[] args) { |
aoqi@0 | 65 | check_f2i(Integer.MAX_VALUE); |
aoqi@0 | 66 | check_f2i(Integer.MIN_VALUE); |
aoqi@0 | 67 | check_f2l(Long.MAX_VALUE); |
aoqi@0 | 68 | check_f2l(Long.MIN_VALUE); |
aoqi@0 | 69 | check_d2i(Integer.MAX_VALUE); |
aoqi@0 | 70 | check_d2i(Integer.MIN_VALUE); |
aoqi@0 | 71 | check_d2l(Long.MAX_VALUE); |
aoqi@0 | 72 | check_d2l(Long.MIN_VALUE); |
aoqi@0 | 73 | } |
aoqi@0 | 74 | } |
aoqi@0 | 75 |