duke@435: /*
trims@2708:  * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #ifndef SHARE_VM_OPTO_LOCKNODE_HPP
stefank@2314: #define SHARE_VM_OPTO_LOCKNODE_HPP
stefank@2314: 
stefank@2314: #include "opto/node.hpp"
stefank@2314: #include "opto/opcodes.hpp"
stefank@2314: #include "opto/subnode.hpp"
stefank@2314: #ifdef TARGET_ARCH_MODEL_x86_32
stefank@2314: # include "adfiles/ad_x86_32.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_ARCH_MODEL_x86_64
stefank@2314: # include "adfiles/ad_x86_64.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_ARCH_MODEL_sparc
stefank@2314: # include "adfiles/ad_sparc.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_ARCH_MODEL_zero
stefank@2314: # include "adfiles/ad_zero.hpp"
stefank@2314: #endif
bobv@2508: #ifdef TARGET_ARCH_MODEL_arm
bobv@2508: # include "adfiles/ad_arm.hpp"
bobv@2508: #endif
bobv@2508: #ifdef TARGET_ARCH_MODEL_ppc
bobv@2508: # include "adfiles/ad_ppc.hpp"
bobv@2508: #endif
stefank@2314: 
duke@435: //------------------------------BoxLockNode------------------------------------
duke@435: class BoxLockNode : public Node {
kvn@3419:   const int     _slot; // stack slot
kvn@3419:   RegMask     _inmask; // OptoReg corresponding to stack slot
kvn@3419:   bool _is_eliminated; // Associated locks were safely eliminated
duke@435: 
kvn@3406: public:
duke@435:   BoxLockNode( int lock );
duke@435:   virtual int Opcode() const;
duke@435:   virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
duke@435:   virtual uint size(PhaseRegAlloc *ra_) const;
duke@435:   virtual const RegMask &in_RegMask(uint) const;
duke@435:   virtual const RegMask &out_RegMask() const;
duke@435:   virtual uint size_of() const;
kvn@895:   virtual uint hash() const;
duke@435:   virtual uint cmp( const Node &n ) const;
duke@435:   virtual const class Type *bottom_type() const { return TypeRawPtr::BOTTOM; }
duke@435:   virtual uint ideal_reg() const { return Op_RegP; }
duke@435: 
kvn@3406:   static OptoReg::Name reg(Node* box_node);
kvn@3406:   static BoxLockNode* box_node(Node* box_node);
kvn@3419:   static bool same_slot(Node* box1, Node* box2) {
kvn@3419:     return box1->as_BoxLock()->_slot == box2->as_BoxLock()->_slot;
kvn@3419:   }
kvn@3406:   int stack_slot() const { return _slot; }
duke@435: 
kvn@3406:   bool is_eliminated() const { return _is_eliminated; }
kvn@501:   // mark lock as eliminated.
kvn@3406:   void set_eliminated()      { _is_eliminated = true; }
kvn@3406: 
kvn@3406:   // Is BoxLock node used for one simple lock region?
kvn@3406:   bool is_simple_lock_region(LockNode** unique_lock, Node* obj);
kvn@501: 
duke@435: #ifndef PRODUCT
duke@435:   virtual void format( PhaseRegAlloc *, outputStream *st ) const;
duke@435:   virtual void dump_spec(outputStream *st) const { st->print("  Lock %d",_slot); }
duke@435: #endif
duke@435: };
duke@435: 
duke@435: //------------------------------FastLockNode-----------------------------------
duke@435: class FastLockNode: public CmpNode {
duke@435: private:
duke@435:   BiasedLockingCounters* _counters;
duke@435: 
duke@435: public:
duke@435:   FastLockNode(Node *ctrl, Node *oop, Node *box) : CmpNode(oop,box) {
duke@435:     init_req(0,ctrl);
duke@435:     init_class_id(Class_FastLock);
duke@435:     _counters = NULL;
duke@435:   }
duke@435:   Node* obj_node() const { return in(1); }
duke@435:   Node* box_node() const { return in(2); }
kvn@3406:   void  set_box_node(Node* box) { set_req(2, box); }
duke@435: 
duke@435:   // FastLock and FastUnlockNode do not hash, we need one for each correspoding
duke@435:   // LockNode/UnLockNode to avoid creating Phi's.
duke@435:   virtual uint hash() const ;                  // { return NO_HASH; }
duke@435:   virtual uint cmp( const Node &n ) const ;    // Always fail, except on self
duke@435:   virtual int Opcode() const;
duke@435:   virtual const Type *Value( PhaseTransform *phase ) const { return TypeInt::CC; }
duke@435:   const Type *sub(const Type *t1, const Type *t2) const { return TypeInt::CC;}
duke@435: 
duke@435:   void create_lock_counter(JVMState* s);
duke@435:   BiasedLockingCounters* counters() const { return _counters; }
duke@435: };
duke@435: 
duke@435: 
duke@435: //------------------------------FastUnlockNode---------------------------------
duke@435: class FastUnlockNode: public CmpNode {
duke@435: public:
duke@435:   FastUnlockNode(Node *ctrl, Node *oop, Node *box) : CmpNode(oop,box) {
duke@435:     init_req(0,ctrl);
duke@435:     init_class_id(Class_FastUnlock);
duke@435:   }
duke@435:   Node* obj_node() const { return in(1); }
duke@435:   Node* box_node() const { return in(2); }
duke@435: 
duke@435: 
duke@435:   // FastLock and FastUnlockNode do not hash, we need one for each correspoding
duke@435:   // LockNode/UnLockNode to avoid creating Phi's.
duke@435:   virtual uint hash() const ;                  // { return NO_HASH; }
duke@435:   virtual uint cmp( const Node &n ) const ;    // Always fail, except on self
duke@435:   virtual int Opcode() const;
duke@435:   virtual const Type *Value( PhaseTransform *phase ) const { return TypeInt::CC; }
duke@435:   const Type *sub(const Type *t1, const Type *t2) const { return TypeInt::CC;}
duke@435: 
duke@435: };
stefank@2314: 
stefank@2314: #endif // SHARE_VM_OPTO_LOCKNODE_HPP