annotate src/share/vm/opto/locknode.hpp @ 2192:b92c45f2bc75

7016023: Enable building ARM and PPC from src/closed repository Reviewed-by: dholmes, bdelsart
author bobv
date Wed, 02 Feb 2011 11:35:26 -0500
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children 1d1603768966
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1 /*
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2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_OPTO_LOCKNODE_HPP
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26 #define SHARE_VM_OPTO_LOCKNODE_HPP
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27
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28 #include "opto/node.hpp"
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29 #include "opto/opcodes.hpp"
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30 #include "opto/subnode.hpp"
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31 #ifdef TARGET_ARCH_MODEL_x86_32
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32 # include "adfiles/ad_x86_32.hpp"
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33 #endif
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34 #ifdef TARGET_ARCH_MODEL_x86_64
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35 # include "adfiles/ad_x86_64.hpp"
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36 #endif
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37 #ifdef TARGET_ARCH_MODEL_sparc
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38 # include "adfiles/ad_sparc.hpp"
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39 #endif
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40 #ifdef TARGET_ARCH_MODEL_zero
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41 # include "adfiles/ad_zero.hpp"
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42 #endif
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43 #ifdef TARGET_ARCH_MODEL_arm
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44 # include "adfiles/ad_arm.hpp"
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45 #endif
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46 #ifdef TARGET_ARCH_MODEL_ppc
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47 # include "adfiles/ad_ppc.hpp"
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48 #endif
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49
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50 //------------------------------BoxLockNode------------------------------------
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51 class BoxLockNode : public Node {
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52 public:
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53 const int _slot;
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54 RegMask _inmask;
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55 bool _is_eliminated; // indicates this lock was safely eliminated
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56
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57 BoxLockNode( int lock );
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58 virtual int Opcode() const;
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59 virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
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60 virtual uint size(PhaseRegAlloc *ra_) const;
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61 virtual const RegMask &in_RegMask(uint) const;
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62 virtual const RegMask &out_RegMask() const;
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63 virtual uint size_of() const;
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64 virtual uint hash() const;
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65 virtual uint cmp( const Node &n ) const;
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66 virtual const class Type *bottom_type() const { return TypeRawPtr::BOTTOM; }
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67 virtual uint ideal_reg() const { return Op_RegP; }
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68
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69 static OptoReg::Name stack_slot(Node* box_node);
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70
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71 bool is_eliminated() { return _is_eliminated; }
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72 // mark lock as eliminated.
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73 void set_eliminated() { _is_eliminated = true; }
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74
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75 #ifndef PRODUCT
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76 virtual void format( PhaseRegAlloc *, outputStream *st ) const;
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77 virtual void dump_spec(outputStream *st) const { st->print(" Lock %d",_slot); }
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78 #endif
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79 };
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80
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81 //------------------------------FastLockNode-----------------------------------
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82 class FastLockNode: public CmpNode {
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83 private:
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84 BiasedLockingCounters* _counters;
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85
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86 public:
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87 FastLockNode(Node *ctrl, Node *oop, Node *box) : CmpNode(oop,box) {
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88 init_req(0,ctrl);
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89 init_class_id(Class_FastLock);
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90 _counters = NULL;
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91 }
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92 Node* obj_node() const { return in(1); }
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93 Node* box_node() const { return in(2); }
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94
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95 // FastLock and FastUnlockNode do not hash, we need one for each correspoding
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96 // LockNode/UnLockNode to avoid creating Phi's.
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97 virtual uint hash() const ; // { return NO_HASH; }
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98 virtual uint cmp( const Node &n ) const ; // Always fail, except on self
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99 virtual int Opcode() const;
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100 virtual const Type *Value( PhaseTransform *phase ) const { return TypeInt::CC; }
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101 const Type *sub(const Type *t1, const Type *t2) const { return TypeInt::CC;}
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102
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103 void create_lock_counter(JVMState* s);
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104 BiasedLockingCounters* counters() const { return _counters; }
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105 };
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106
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107
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108 //------------------------------FastUnlockNode---------------------------------
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109 class FastUnlockNode: public CmpNode {
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110 public:
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111 FastUnlockNode(Node *ctrl, Node *oop, Node *box) : CmpNode(oop,box) {
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112 init_req(0,ctrl);
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113 init_class_id(Class_FastUnlock);
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114 }
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115 Node* obj_node() const { return in(1); }
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116 Node* box_node() const { return in(2); }
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117
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118
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119 // FastLock and FastUnlockNode do not hash, we need one for each correspoding
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120 // LockNode/UnLockNode to avoid creating Phi's.
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121 virtual uint hash() const ; // { return NO_HASH; }
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122 virtual uint cmp( const Node &n ) const ; // Always fail, except on self
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123 virtual int Opcode() const;
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124 virtual const Type *Value( PhaseTransform *phase ) const { return TypeInt::CC; }
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125 const Type *sub(const Type *t1, const Type *t2) const { return TypeInt::CC;}
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126
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127 };
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128
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129 #endif // SHARE_VM_OPTO_LOCKNODE_HPP