Mercurial > hg > truffle
diff src/share/vm/oops/symbol.cpp @ 17709:f9e35a9dc8c7
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 |
|---|---|
| date | Mon, 10 Feb 2014 21:29:14 -0800 |
| parents | 9758d9f36299 |
| children | 4ca6dc0799b6 |
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--- a/src/share/vm/oops/symbol.cpp Wed Mar 05 11:28:33 2014 -0800 +++ b/src/share/vm/oops/symbol.cpp Mon Feb 10 21:29:14 2014 -0800 @@ -1,5 +1,5 @@ /* - * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -207,7 +207,7 @@ } // Alternate hashing for unbalanced symbol tables. -unsigned int Symbol::new_hash(jint seed) { +unsigned int Symbol::new_hash(juint seed) { ResourceMark rm; // Use alternate hashing algorithm on this symbol. return AltHashing::murmur3_32(seed, (const jbyte*)as_C_string(), utf8_length());