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8269986: Remove +3 from Symbol::identity_hash()

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Reviewed-by: coleenp
This commit is contained in:
Ioi Lam 2021-11-10 20:22:41 +00:00
parent 2374abda19
commit df02daa6f9
1 changed files with 1 additions and 1 deletions
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src/hotspot/share/oops/symbol.hpp
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@ -155,7 +155,7 @@ class Symbol : public MetaspaceObj {
// Returns the largest size symbol we can safely hold. // Returns the largest size symbol we can safely hold.
static int max_length() { return max_symbol_length; } static int max_length() { return max_symbol_length; }
unsigned identity_hash() const { unsigned identity_hash() const {
unsigned addr_bits = (unsigned)((uintptr_t)this >> (LogBytesPerWord + 3)); unsigned addr_bits = (unsigned)((uintptr_t)this >> LogBytesPerWord);
return ((unsigned)extract_hash(_hash_and_refcount) & 0xffff) | return ((unsigned)extract_hash(_hash_and_refcount) & 0xffff) |
((addr_bits ^ (length() << 8) ^ (( _body[0] << 8) | _body[1])) << 16); ((addr_bits ^ (length() << 8) ^ (( _body[0] << 8) | _body[1])) << 16);
} }