|
1 /* |
|
2 * Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved. |
|
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
|
4 * |
|
5 * This code is free software; you can redistribute it and/or modify it |
|
6 * under the terms of the GNU General Public License version 2 only, as |
|
7 * published by the Free Software Foundation. |
|
8 * |
|
9 * This code is distributed in the hope that it will be useful, but WITHOUT |
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
12 * version 2 for more details (a copy is included in the LICENSE file that |
|
13 * accompanied this code). |
|
14 * |
|
15 * You should have received a copy of the GNU General Public License version |
|
16 * 2 along with this work; if not, write to the Free Software Foundation, |
|
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
18 * |
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
20 * or visit www.oracle.com if you need additional information or have any |
|
21 * questions. |
|
22 */ |
|
23 |
|
24 /** |
|
25 * JDK-8058610: must not let long operations overflow |
|
26 * |
|
27 * @test |
|
28 * @run |
|
29 */ |
|
30 |
|
31 function mul(x) { |
|
32 return x.foo * x.bar; |
|
33 } |
|
34 print("=== mul ===") |
|
35 print(mul({foo: 2147483647, bar: 2147483647})); // 2^31 |
|
36 print(mul({foo: 17179869184, bar: 2147483647})); // 2^34 |
|
37 |
|
38 function self_mul(x) { |
|
39 return x.foo *= x.bar; |
|
40 } |
|
41 print("=== self_mul ===") |
|
42 print(self_mul({foo: 2147483647, bar: 2147483647})); // 2^31 |
|
43 print(self_mul({foo: 17179869184, bar: 2147483647})); // 2^34 |
|
44 |
|
45 // We'll need to use this function to obtain long values larger in |
|
46 // magnitude than those precisely representable in a double (2^53), |
|
47 // as Nashorn's parser will reify such literals as a double. For |
|
48 // overflow on add and sub we need (2^63)-1. |
|
49 var parseLong = Java.type("java.lang.Long").parseLong; |
|
50 |
|
51 function sub(x) { |
|
52 return x.foo - x.bar; |
|
53 } |
|
54 print("=== sub ===") |
|
55 print(sub({foo: 2147483647, bar: -2147483647})); // 2^31 |
|
56 print(sub({foo: parseLong("9223372036854775807"), bar: parseLong("-9223372036854775807")})); // 2^63-1 |
|
57 |
|
58 function self_sub(x) { |
|
59 return x.foo -= x.bar; |
|
60 } |
|
61 print("=== self_sub ===") |
|
62 print(self_sub({foo: 2147483647, bar: -2147483647})); // 2^31 |
|
63 print(self_sub({foo: parseLong("9223372036854775807"), bar: parseLong("-9223372036854775807")})); // 2^63-1 |
|
64 |
|
65 function add(x) { |
|
66 return x.foo + x.bar; |
|
67 } |
|
68 print("=== add ===") |
|
69 print(add({foo: 2147483647, bar: 2147483647})); // 2^31 |
|
70 print(add({foo: parseLong("9223372036854775807"), bar: parseLong("9223372036854775807")})); // 2^63-1 |
|
71 |
|
72 function self_add(x) { |
|
73 return x.foo += x.bar; |
|
74 } |
|
75 print("=== self_add ===") |
|
76 print(self_add({foo: 2147483647, bar: 2147483647})); // 2^31 |
|
77 print(self_add({foo: parseLong("9223372036854775807"), bar: parseLong("9223372036854775807")})); // 2^63-1 |