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comparison src/share/vm/opto/graphKit.cpp @ 17780:606acabe7b5c

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8031320: Use Intel RTM instructions for locks Summary: Use RTM for inflated locks and stack locks. Reviewed-by: iveresov, twisti, roland, dcubed
author kvn
date Thu, 20 Mar 2014 17:49:27 -0700
parents 9ab9f254cfe2
children 62c54fcc0a35
comparison
equal deleted inserted replaced
17778:a48e16541e6b 17780:606acabe7b5c
3155 // Box the stack location 3155 // Box the stack location
3156 Node* box = _gvn.transform(new (C) BoxLockNode(next_monitor())); 3156 Node* box = _gvn.transform(new (C) BoxLockNode(next_monitor()));
3157 Node* mem = reset_memory(); 3157 Node* mem = reset_memory();
3158 3158
3159 FastLockNode * flock = _gvn.transform(new (C) FastLockNode(0, obj, box) )->as_FastLock(); 3159 FastLockNode * flock = _gvn.transform(new (C) FastLockNode(0, obj, box) )->as_FastLock();
3160 if (PrintPreciseBiasedLockingStatistics) { 3160 if (UseBiasedLocking && PrintPreciseBiasedLockingStatistics) {
3161 // Create the counters for this fast lock. 3161 // Create the counters for this fast lock.
3162 flock->create_lock_counter(sync_jvms()); // sync_jvms used to get current bci 3162 flock->create_lock_counter(sync_jvms()); // sync_jvms used to get current bci
3163 } 3163 }
3164
3165 // Create the rtm counters for this fast lock if needed.
3166 flock->create_rtm_lock_counter(sync_jvms()); // sync_jvms used to get current bci
3167
3164 // Add monitor to debug info for the slow path. If we block inside the 3168 // Add monitor to debug info for the slow path. If we block inside the
3165 // slow path and de-opt, we need the monitor hanging around 3169 // slow path and de-opt, we need the monitor hanging around
3166 map()->push_monitor( flock ); 3170 map()->push_monitor( flock );
3167 3171
3168 const TypeFunc *tf = LockNode::lock_type(); 3172 const TypeFunc *tf = LockNode::lock_type();