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8073165: Contended Locking fast exit bucket

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JEP-143/JDK-8073165 Contended Locking fast exit bucket

Co-authored-by: Dave Dice <dave.dice@oracle.com>
Co-authored-by: Karen Kinnear <karen.kinnear@oracle.com>
Reviewed-by: dholmes, acorn, dice, dcubed
This commit is contained in:
Daniel D. Daugherty 2015-04-16 08:23:26 -07:00
parent d30de5ab31
commit 884f0d320f
14 changed files with 326 additions and 215 deletions
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4
hotspot/src/share/vm/runtime/sharedRuntime.cpp
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@ -1819,9 +1819,9 @@ JRT_BLOCK_ENTRY(void, SharedRuntime::complete_monitor_locking_C(oopDesc* _obj, B
JRT_END
// Handles the uncommon cases of monitor unlocking in compiled code
JRT_LEAF(void, SharedRuntime::complete_monitor_unlocking_C(oopDesc* _obj, BasicLock* lock))
JRT_LEAF(void, SharedRuntime::complete_monitor_unlocking_C(oopDesc* _obj, BasicLock* lock, JavaThread * THREAD))
oop obj(_obj);
Thread* THREAD = JavaThread::current();
assert(JavaThread::current() == THREAD, "invariant");
// I'm not convinced we need the code contained by MIGHT_HAVE_PENDING anymore
// testing was unable to ever fire the assert that guarded it so I have removed it.
assert(!HAS_PENDING_EXCEPTION, "Do we need code below anymore?");