Mercurial > hg > graal-compiler
comparison src/share/vm/opto/locknode.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | 6dbf1a175d6b |
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-1:000000000000 | 0:a61af66fc99e |
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1 /* | |
2 * Copyright 1999-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 //------------------------------BoxLockNode------------------------------------ | |
26 class BoxLockNode : public Node { | |
27 public: | |
28 const int _slot; | |
29 RegMask _inmask; | |
30 | |
31 BoxLockNode( int lock ); | |
32 virtual int Opcode() const; | |
33 virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const; | |
34 virtual uint size(PhaseRegAlloc *ra_) const; | |
35 virtual const RegMask &in_RegMask(uint) const; | |
36 virtual const RegMask &out_RegMask() const; | |
37 virtual uint size_of() const; | |
38 virtual uint hash() const { return Node::hash() + _slot; } | |
39 virtual uint cmp( const Node &n ) const; | |
40 virtual const class Type *bottom_type() const { return TypeRawPtr::BOTTOM; } | |
41 virtual uint ideal_reg() const { return Op_RegP; } | |
42 | |
43 static OptoReg::Name stack_slot(Node* box_node); | |
44 | |
45 #ifndef PRODUCT | |
46 virtual void format( PhaseRegAlloc *, outputStream *st ) const; | |
47 virtual void dump_spec(outputStream *st) const { st->print(" Lock %d",_slot); } | |
48 #endif | |
49 }; | |
50 | |
51 //------------------------------FastLockNode----------------------------------- | |
52 class FastLockNode: public CmpNode { | |
53 private: | |
54 BiasedLockingCounters* _counters; | |
55 | |
56 public: | |
57 FastLockNode(Node *ctrl, Node *oop, Node *box) : CmpNode(oop,box) { | |
58 init_req(0,ctrl); | |
59 init_class_id(Class_FastLock); | |
60 _counters = NULL; | |
61 } | |
62 Node* obj_node() const { return in(1); } | |
63 Node* box_node() const { return in(2); } | |
64 | |
65 // FastLock and FastUnlockNode do not hash, we need one for each correspoding | |
66 // LockNode/UnLockNode to avoid creating Phi's. | |
67 virtual uint hash() const ; // { return NO_HASH; } | |
68 virtual uint cmp( const Node &n ) const ; // Always fail, except on self | |
69 virtual int Opcode() const; | |
70 virtual const Type *Value( PhaseTransform *phase ) const { return TypeInt::CC; } | |
71 const Type *sub(const Type *t1, const Type *t2) const { return TypeInt::CC;} | |
72 | |
73 void create_lock_counter(JVMState* s); | |
74 BiasedLockingCounters* counters() const { return _counters; } | |
75 }; | |
76 | |
77 | |
78 //------------------------------FastUnlockNode--------------------------------- | |
79 class FastUnlockNode: public CmpNode { | |
80 public: | |
81 FastUnlockNode(Node *ctrl, Node *oop, Node *box) : CmpNode(oop,box) { | |
82 init_req(0,ctrl); | |
83 init_class_id(Class_FastUnlock); | |
84 } | |
85 Node* obj_node() const { return in(1); } | |
86 Node* box_node() const { return in(2); } | |
87 | |
88 | |
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;} | |
96 | |
97 }; |