src/hotspot/share/gc/z/zHash.inline.hpp
author mgronlun
Wed, 30 Oct 2019 19:43:52 +0100
changeset 58863 c16ac7a2eba4
parent 51029 bfeee03c49fe
permissions -rw-r--r--
8226511: Implement JFR Event Streaming Reviewed-by: egahlin, mseledtsov, mgronlun Contributed-by: erik.gahlin@oracle.com, mikhailo.seledtsov@oracle.com, markus.gronlund@oracle.com

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/*
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 *  (C) 2009 by Remo Dentato (rdentato@gmail.com)
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#ifndef SHARE_GC_Z_ZHASH_INLINE_HPP
#define SHARE_GC_Z_ZHASH_INLINE_HPP

#include "gc/z/zHash.hpp"

inline uint32_t ZHash::uint32_to_uint32(uint32_t key) {
  key = ~key + (key << 15);
  key = key ^ (key >> 12);
  key = key + (key << 2);
  key = key ^ (key >> 4);
  key = key * 2057;
  key = key ^ (key >> 16);
  return key;
}

inline uint32_t ZHash::address_to_uint32(uintptr_t key) {
  return uint32_to_uint32((uint32_t)(key >> 3));
}

#endif // SHARE_GC_Z_ZHASH_INLINE_HPP