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comparison src/share/vm/opto/locknode.hpp @ 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 b9a9ed0f8eeb
children 62c54fcc0a35
comparison
equal deleted inserted replaced
17778:a48e16541e6b 17780:606acabe7b5c
87 }; 87 };
88 88
89 //------------------------------FastLockNode----------------------------------- 89 //------------------------------FastLockNode-----------------------------------
90 class FastLockNode: public CmpNode { 90 class FastLockNode: public CmpNode {
91 private: 91 private:
92 BiasedLockingCounters* _counters; 92 BiasedLockingCounters* _counters;
93 RTMLockingCounters* _rtm_counters; // RTM lock counters for inflated locks
94 RTMLockingCounters* _stack_rtm_counters; // RTM lock counters for stack locks
93 95
94 public: 96 public:
95 FastLockNode(Node *ctrl, Node *oop, Node *box) : CmpNode(oop,box) { 97 FastLockNode(Node *ctrl, Node *oop, Node *box) : CmpNode(oop,box) {
96 init_req(0,ctrl); 98 init_req(0,ctrl);
97 init_class_id(Class_FastLock); 99 init_class_id(Class_FastLock);
98 _counters = NULL; 100 _counters = NULL;
101 _rtm_counters = NULL;
102 _stack_rtm_counters = NULL;
99 } 103 }
100 Node* obj_node() const { return in(1); } 104 Node* obj_node() const { return in(1); }
101 Node* box_node() const { return in(2); } 105 Node* box_node() const { return in(2); }
102 void set_box_node(Node* box) { set_req(2, box); } 106 void set_box_node(Node* box) { set_req(2, box); }
103 107
104 // FastLock and FastUnlockNode do not hash, we need one for each correspoding 108 // FastLock and FastUnlockNode do not hash, we need one for each correspoding
105 // LockNode/UnLockNode to avoid creating Phi's. 109 // LockNode/UnLockNode to avoid creating Phi's.
106 virtual uint hash() const ; // { return NO_HASH; } 110 virtual uint hash() const ; // { return NO_HASH; }
111 virtual uint size_of() const;
107 virtual uint cmp( const Node &n ) const ; // Always fail, except on self 112 virtual uint cmp( const Node &n ) const ; // Always fail, except on self
108 virtual int Opcode() const; 113 virtual int Opcode() const;
109 virtual const Type *Value( PhaseTransform *phase ) const { return TypeInt::CC; } 114 virtual const Type *Value( PhaseTransform *phase ) const { return TypeInt::CC; }
110 const Type *sub(const Type *t1, const Type *t2) const { return TypeInt::CC;} 115 const Type *sub(const Type *t1, const Type *t2) const { return TypeInt::CC;}
111 116
112 void create_lock_counter(JVMState* s); 117 void create_lock_counter(JVMState* s);
113 BiasedLockingCounters* counters() const { return _counters; } 118 void create_rtm_lock_counter(JVMState* state);
119 BiasedLockingCounters* counters() const { return _counters; }
120 RTMLockingCounters* rtm_counters() const { return _rtm_counters; }
121 RTMLockingCounters* stack_rtm_counters() const { return _stack_rtm_counters; }
114 }; 122 };
115 123
116 124
117 //------------------------------FastUnlockNode--------------------------------- 125 //------------------------------FastUnlockNode---------------------------------
118 class FastUnlockNode: public CmpNode { 126 class FastUnlockNode: public CmpNode {