Mercurial > hg > truffle
comparison src/share/vm/utilities/hashtable.cpp @ 14340:cd6b3f1a94ff
8033792: AltHashing used jint for imprecise bit shifting
Summary: AltHashing used jint the way of juint in bit shifting which could lead loss of precision. Fix by change _seed defined as juint.
Reviewed-by: coleenp, ccheung
Contributed-by: yumin.qi@oracle.com
author | minqi |
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date | Mon, 10 Feb 2014 21:29:14 -0800 |
parents | 190899198332 |
children | 524b54a7f1b5 152cf4afc11f |
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14339:9bfa5faf122e | 14340:cd6b3f1a94ff |
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1 /* | 1 /* |
2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | 4 * |
5 * This code is free software; you can redistribute it and/or modify it | 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 | 6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
91 return true; | 91 return true; |
92 } | 92 } |
93 return false; | 93 return false; |
94 } | 94 } |
95 | 95 |
96 template <class T, MEMFLAGS F> jint Hashtable<T, F>::_seed = 0; | 96 template <class T, MEMFLAGS F> juint Hashtable<T, F>::_seed = 0; |
97 | 97 |
98 // Create a new table and using alternate hash code, populate the new table | 98 // Create a new table and using alternate hash code, populate the new table |
99 // with the existing elements. This can be used to change the hash code | 99 // with the existing elements. This can be used to change the hash code |
100 // and could in the future change the size of the table. | 100 // and could in the future change the size of the table. |
101 | 101 |