src/share/vm/opto/locknode.hpp

Tue, 23 Nov 2010 13:22:55 -0800

author
stefank
date
Tue, 23 Nov 2010 13:22:55 -0800
changeset 2314
f95d63e2154a
parent 1907
c18cbe5936b8
child 2508
b92c45f2bc75
permissions
-rw-r--r--

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

     1 /*
     2  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #ifndef SHARE_VM_OPTO_LOCKNODE_HPP
    26 #define SHARE_VM_OPTO_LOCKNODE_HPP
    28 #include "opto/node.hpp"
    29 #include "opto/opcodes.hpp"
    30 #include "opto/subnode.hpp"
    31 #ifdef TARGET_ARCH_MODEL_x86_32
    32 # include "adfiles/ad_x86_32.hpp"
    33 #endif
    34 #ifdef TARGET_ARCH_MODEL_x86_64
    35 # include "adfiles/ad_x86_64.hpp"
    36 #endif
    37 #ifdef TARGET_ARCH_MODEL_sparc
    38 # include "adfiles/ad_sparc.hpp"
    39 #endif
    40 #ifdef TARGET_ARCH_MODEL_zero
    41 # include "adfiles/ad_zero.hpp"
    42 #endif
    44 //------------------------------BoxLockNode------------------------------------
    45 class BoxLockNode : public Node {
    46 public:
    47   const int _slot;
    48   RegMask   _inmask;
    49   bool _is_eliminated;    // indicates this lock was safely eliminated
    51   BoxLockNode( int lock );
    52   virtual int Opcode() const;
    53   virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
    54   virtual uint size(PhaseRegAlloc *ra_) const;
    55   virtual const RegMask &in_RegMask(uint) const;
    56   virtual const RegMask &out_RegMask() const;
    57   virtual uint size_of() const;
    58   virtual uint hash() const;
    59   virtual uint cmp( const Node &n ) const;
    60   virtual const class Type *bottom_type() const { return TypeRawPtr::BOTTOM; }
    61   virtual uint ideal_reg() const { return Op_RegP; }
    63   static OptoReg::Name stack_slot(Node* box_node);
    65   bool is_eliminated()  { return _is_eliminated; }
    66   // mark lock as eliminated.
    67   void set_eliminated() { _is_eliminated = true; }
    69 #ifndef PRODUCT
    70   virtual void format( PhaseRegAlloc *, outputStream *st ) const;
    71   virtual void dump_spec(outputStream *st) const { st->print("  Lock %d",_slot); }
    72 #endif
    73 };
    75 //------------------------------FastLockNode-----------------------------------
    76 class FastLockNode: public CmpNode {
    77 private:
    78   BiasedLockingCounters* _counters;
    80 public:
    81   FastLockNode(Node *ctrl, Node *oop, Node *box) : CmpNode(oop,box) {
    82     init_req(0,ctrl);
    83     init_class_id(Class_FastLock);
    84     _counters = NULL;
    85   }
    86   Node* obj_node() const { return in(1); }
    87   Node* box_node() const { return in(2); }
    89   // FastLock and FastUnlockNode do not hash, we need one for each correspoding
    90   // LockNode/UnLockNode to avoid creating Phi's.
    91   virtual uint hash() const ;                  // { return NO_HASH; }
    92   virtual uint cmp( const Node &n ) const ;    // Always fail, except on self
    93   virtual int Opcode() const;
    94   virtual const Type *Value( PhaseTransform *phase ) const { return TypeInt::CC; }
    95   const Type *sub(const Type *t1, const Type *t2) const { return TypeInt::CC;}
    97   void create_lock_counter(JVMState* s);
    98   BiasedLockingCounters* counters() const { return _counters; }
    99 };
   102 //------------------------------FastUnlockNode---------------------------------
   103 class FastUnlockNode: public CmpNode {
   104 public:
   105   FastUnlockNode(Node *ctrl, Node *oop, Node *box) : CmpNode(oop,box) {
   106     init_req(0,ctrl);
   107     init_class_id(Class_FastUnlock);
   108   }
   109   Node* obj_node() const { return in(1); }
   110   Node* box_node() const { return in(2); }
   113   // FastLock and FastUnlockNode do not hash, we need one for each correspoding
   114   // LockNode/UnLockNode to avoid creating Phi's.
   115   virtual uint hash() const ;                  // { return NO_HASH; }
   116   virtual uint cmp( const Node &n ) const ;    // Always fail, except on self
   117   virtual int Opcode() const;
   118   virtual const Type *Value( PhaseTransform *phase ) const { return TypeInt::CC; }
   119   const Type *sub(const Type *t1, const Type *t2) const { return TypeInt::CC;}
   121 };
   123 #endif // SHARE_VM_OPTO_LOCKNODE_HPP

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