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8221836: Avoid recalculating String.hash when zero

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Co-authored-by: Peter Levart <peter.levart@gmail.com>
Reviewed-by: jrose, adinn
This commit is contained in:
Claes Redestad 2019-04-10 12:05:50 +02:00
parent d40aa622cf
commit 89a267ca46
6 changed files with 66 additions and 40 deletions
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2
src/hotspot/share/classfile/stringTable.cpp
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@ -761,8 +761,6 @@ struct CopyToArchive : StackObj {
return true;
}
unsigned int hash = java_lang_String::hash_code(s);
java_lang_String::set_hash(s, hash);
oop new_s = StringTable::create_archived_string(s, Thread::current());
if (new_s == NULL) {
return true;