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8221734: Deoptimize with handshakes

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Reviewed-by: dcubed, dholmes, pchilanomate, dlong, coleenp
This commit is contained in:
Robbin Ehn 2019-05-23 10:13:29 +02:00
parent 4ea77d3e78
commit 9baafa55a6
28 changed files with 274 additions and 175 deletions
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4
src/hotspot/share/runtime/mutexLocker.cpp
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@ -39,6 +39,7 @@
// Consider using GCC's __read_mostly.
Mutex* Patching_lock = NULL;
Mutex* CompiledMethod_lock = NULL;
Monitor* SystemDictionary_lock = NULL;
Mutex* ProtectionDomainSet_lock = NULL;
Mutex* SharedDictionary_lock = NULL;
@ -261,6 +262,8 @@ void mutex_init() {
def(ClassLoaderDataGraph_lock , PaddedMutex , nonleaf, true, Monitor::_safepoint_check_always);
def(Patching_lock , PaddedMutex , special, true, Monitor::_safepoint_check_never); // used for safepointing and code patching.
def(OsrList_lock , PaddedMutex , special-1, true, Monitor::_safepoint_check_never);
def(CompiledMethod_lock , PaddedMutex , special-1, true, Monitor::_safepoint_check_never);
def(Service_lock , PaddedMonitor, special, true, Monitor::_safepoint_check_never); // used for service thread operations
def(JmethodIdCreation_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_always); // used for creating jmethodIDs.
@ -276,7 +279,6 @@ void mutex_init() {
def(SymbolArena_lock , PaddedMutex , leaf+2, true, Monitor::_safepoint_check_never);
def(ProfilePrint_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always); // serial profile printing
def(ExceptionCache_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always); // serial profile printing
def(OsrList_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
def(Debug1_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
#ifndef PRODUCT
def(FullGCALot_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always); // a lock to make FullGCALot MT safe