8164207: Checking missing load-acquire in relation to _pd_set in dictionary.cpp
Summary: Use load_acquire for accessing DictionaryEntry::_pd_set since it's accessed outside the SystemDictionary_lock
Reviewed-by: zgu, twisti, dholmes, adinn
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* This code is free software; you can redistribute it and/or modify it
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* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
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#ifndef SHARE_VM_CLASSFILE_ALTHASHING_HPP
#define SHARE_VM_CLASSFILE_ALTHASHING_HPP
#include "prims/jni.h"
#include "classfile/symbolTable.hpp"
/**
* Hashing utilities.
*
* Implementation of Murmur3 hashing.
* This code was translated from src/share/classes/sun/misc/Hashing.java
* code in the JDK.
*/
class AltHashing : AllStatic {
friend class AltHashingTest;
// utility function copied from java/lang/Integer
static juint Integer_rotateLeft(juint i, int distance) {
return (i << distance) | (i >> (32 - distance));
}
static juint murmur3_32(const int* data, int len);
static juint murmur3_32(juint seed, const int* data, int len);
public:
static juint compute_seed();
static juint murmur3_32(juint seed, const jbyte* data, int len);
static juint murmur3_32(juint seed, const jchar* data, int len);
};
#endif // SHARE_VM_CLASSFILE_ALTHASHING_HPP