3574 MemBarNode* mb = MemBarNode::make(C, Op_MemBarVolatile, Compile::AliasIdxRaw);
3575 mb->init_req(TypeFunc::Control, control());
3576 mb->init_req(TypeFunc::Memory, mem);
3577 Node* membar = _gvn.transform(mb);
3578 set_control(_gvn.transform(new ProjNode(membar, TypeFunc::Control)));
3579 Node* newmem = _gvn.transform(new ProjNode(membar, TypeFunc::Memory));
3580 set_all_memory(mem);
3581 set_memory(newmem, Compile::AliasIdxRaw);
3582 }
3583
3584 //------------------------------shared_lock------------------------------------
3585 // Emit locking code.
3586 FastLockNode* GraphKit::shared_lock(Node* obj) {
3587 // bci is either a monitorenter bc or InvocationEntryBci
3588 // %%% SynchronizationEntryBCI is redundant; use InvocationEntryBci in interfaces
3589 assert(SynchronizationEntryBCI == InvocationEntryBci, "");
3590
3591 if( !GenerateSynchronizationCode )
3592 return NULL; // Not locking things?
3593
3594 // We cannot lock on a value type
3595 const TypeOopPtr* objptr = _gvn.type(obj)->make_oopptr();
3596 if (objptr->can_be_value_type()) {
3597 gen_value_type_guard(obj, 1);
3598 }
3599
3600 if (stopped()) // Dead monitor?
3601 return NULL;
3602
3603 assert(dead_locals_are_killed(), "should kill locals before sync. point");
3604
3605 obj = access_resolve(obj, ACCESS_READ | ACCESS_WRITE);
3606
3607 // Box the stack location
3608 Node* box = _gvn.transform(new BoxLockNode(next_monitor()));
3609 Node* mem = reset_memory();
3610
3611 FastLockNode * flock = _gvn.transform(new FastLockNode(0, obj, box) )->as_FastLock();
3612 if (UseBiasedLocking && PrintPreciseBiasedLockingStatistics) {
3613 // Create the counters for this fast lock.
3614 flock->create_lock_counter(sync_jvms()); // sync_jvms used to get current bci
3615 }
3616
3617 // Create the rtm counters for this fast lock if needed.
3618 flock->create_rtm_lock_counter(sync_jvms()); // sync_jvms used to get current bci
3619
|
3574 MemBarNode* mb = MemBarNode::make(C, Op_MemBarVolatile, Compile::AliasIdxRaw);
3575 mb->init_req(TypeFunc::Control, control());
3576 mb->init_req(TypeFunc::Memory, mem);
3577 Node* membar = _gvn.transform(mb);
3578 set_control(_gvn.transform(new ProjNode(membar, TypeFunc::Control)));
3579 Node* newmem = _gvn.transform(new ProjNode(membar, TypeFunc::Memory));
3580 set_all_memory(mem);
3581 set_memory(newmem, Compile::AliasIdxRaw);
3582 }
3583
3584 //------------------------------shared_lock------------------------------------
3585 // Emit locking code.
3586 FastLockNode* GraphKit::shared_lock(Node* obj) {
3587 // bci is either a monitorenter bc or InvocationEntryBci
3588 // %%% SynchronizationEntryBCI is redundant; use InvocationEntryBci in interfaces
3589 assert(SynchronizationEntryBCI == InvocationEntryBci, "");
3590
3591 if( !GenerateSynchronizationCode )
3592 return NULL; // Not locking things?
3593
3594 if (stopped()) // Dead monitor?
3595 return NULL;
3596
3597 assert(dead_locals_are_killed(), "should kill locals before sync. point");
3598
3599 obj = access_resolve(obj, ACCESS_READ | ACCESS_WRITE);
3600
3601 // Box the stack location
3602 Node* box = _gvn.transform(new BoxLockNode(next_monitor()));
3603 Node* mem = reset_memory();
3604
3605 FastLockNode * flock = _gvn.transform(new FastLockNode(0, obj, box) )->as_FastLock();
3606 if (UseBiasedLocking && PrintPreciseBiasedLockingStatistics) {
3607 // Create the counters for this fast lock.
3608 flock->create_lock_counter(sync_jvms()); // sync_jvms used to get current bci
3609 }
3610
3611 // Create the rtm counters for this fast lock if needed.
3612 flock->create_rtm_lock_counter(sync_jvms()); // sync_jvms used to get current bci
3613
|