1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/opto/locknode.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,149 @@
1.4 +/*
1.5 + * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef SHARE_VM_OPTO_LOCKNODE_HPP
1.29 +#define SHARE_VM_OPTO_LOCKNODE_HPP
1.30 +
1.31 +#include "opto/node.hpp"
1.32 +#include "opto/opcodes.hpp"
1.33 +#include "opto/subnode.hpp"
1.34 +#ifdef TARGET_ARCH_MODEL_x86_32
1.35 +# include "adfiles/ad_x86_32.hpp"
1.36 +#endif
1.37 +#ifdef TARGET_ARCH_MODEL_x86_64
1.38 +# include "adfiles/ad_x86_64.hpp"
1.39 +#endif
1.40 +#ifdef TARGET_ARCH_MODEL_sparc
1.41 +# include "adfiles/ad_sparc.hpp"
1.42 +#endif
1.43 +#ifdef TARGET_ARCH_MODEL_zero
1.44 +# include "adfiles/ad_zero.hpp"
1.45 +#endif
1.46 +#ifdef TARGET_ARCH_MODEL_arm
1.47 +# include "adfiles/ad_arm.hpp"
1.48 +#endif
1.49 +#ifdef TARGET_ARCH_MODEL_ppc_32
1.50 +# include "adfiles/ad_ppc_32.hpp"
1.51 +#endif
1.52 +#ifdef TARGET_ARCH_MODEL_ppc_64
1.53 +# include "adfiles/ad_ppc_64.hpp"
1.54 +#endif
1.55 +
1.56 +//------------------------------BoxLockNode------------------------------------
1.57 +class BoxLockNode : public Node {
1.58 + const int _slot; // stack slot
1.59 + RegMask _inmask; // OptoReg corresponding to stack slot
1.60 + bool _is_eliminated; // Associated locks were safely eliminated
1.61 +
1.62 +public:
1.63 + BoxLockNode( int lock );
1.64 + virtual int Opcode() const;
1.65 + virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
1.66 + virtual uint size(PhaseRegAlloc *ra_) const;
1.67 + virtual const RegMask &in_RegMask(uint) const;
1.68 + virtual const RegMask &out_RegMask() const;
1.69 + virtual uint size_of() const;
1.70 + virtual uint hash() const;
1.71 + virtual uint cmp( const Node &n ) const;
1.72 + virtual const class Type *bottom_type() const { return TypeRawPtr::BOTTOM; }
1.73 + virtual uint ideal_reg() const { return Op_RegP; }
1.74 +
1.75 + static OptoReg::Name reg(Node* box_node);
1.76 + static BoxLockNode* box_node(Node* box_node);
1.77 + static bool same_slot(Node* box1, Node* box2) {
1.78 + return box1->as_BoxLock()->_slot == box2->as_BoxLock()->_slot;
1.79 + }
1.80 + int stack_slot() const { return _slot; }
1.81 +
1.82 + bool is_eliminated() const { return _is_eliminated; }
1.83 + // mark lock as eliminated.
1.84 + void set_eliminated() { _is_eliminated = true; }
1.85 +
1.86 + // Is BoxLock node used for one simple lock region?
1.87 + bool is_simple_lock_region(LockNode** unique_lock, Node* obj);
1.88 +
1.89 +#ifndef PRODUCT
1.90 + virtual void format( PhaseRegAlloc *, outputStream *st ) const;
1.91 + virtual void dump_spec(outputStream *st) const { st->print(" Lock %d",_slot); }
1.92 +#endif
1.93 +};
1.94 +
1.95 +//------------------------------FastLockNode-----------------------------------
1.96 +class FastLockNode: public CmpNode {
1.97 +private:
1.98 + BiasedLockingCounters* _counters;
1.99 + RTMLockingCounters* _rtm_counters; // RTM lock counters for inflated locks
1.100 + RTMLockingCounters* _stack_rtm_counters; // RTM lock counters for stack locks
1.101 +
1.102 +public:
1.103 + FastLockNode(Node *ctrl, Node *oop, Node *box) : CmpNode(oop,box) {
1.104 + init_req(0,ctrl);
1.105 + init_class_id(Class_FastLock);
1.106 + _counters = NULL;
1.107 + _rtm_counters = NULL;
1.108 + _stack_rtm_counters = NULL;
1.109 + }
1.110 + Node* obj_node() const { return in(1); }
1.111 + Node* box_node() const { return in(2); }
1.112 + void set_box_node(Node* box) { set_req(2, box); }
1.113 +
1.114 + // FastLock and FastUnlockNode do not hash, we need one for each correspoding
1.115 + // LockNode/UnLockNode to avoid creating Phi's.
1.116 + virtual uint hash() const ; // { return NO_HASH; }
1.117 + virtual uint size_of() const;
1.118 + virtual uint cmp( const Node &n ) const ; // Always fail, except on self
1.119 + virtual int Opcode() const;
1.120 + virtual const Type *Value( PhaseTransform *phase ) const { return TypeInt::CC; }
1.121 + const Type *sub(const Type *t1, const Type *t2) const { return TypeInt::CC;}
1.122 +
1.123 + void create_lock_counter(JVMState* s);
1.124 + void create_rtm_lock_counter(JVMState* state);
1.125 + BiasedLockingCounters* counters() const { return _counters; }
1.126 + RTMLockingCounters* rtm_counters() const { return _rtm_counters; }
1.127 + RTMLockingCounters* stack_rtm_counters() const { return _stack_rtm_counters; }
1.128 +};
1.129 +
1.130 +
1.131 +//------------------------------FastUnlockNode---------------------------------
1.132 +class FastUnlockNode: public CmpNode {
1.133 +public:
1.134 + FastUnlockNode(Node *ctrl, Node *oop, Node *box) : CmpNode(oop,box) {
1.135 + init_req(0,ctrl);
1.136 + init_class_id(Class_FastUnlock);
1.137 + }
1.138 + Node* obj_node() const { return in(1); }
1.139 + Node* box_node() const { return in(2); }
1.140 +
1.141 +
1.142 + // FastLock and FastUnlockNode do not hash, we need one for each correspoding
1.143 + // LockNode/UnLockNode to avoid creating Phi's.
1.144 + virtual uint hash() const ; // { return NO_HASH; }
1.145 + virtual uint cmp( const Node &n ) const ; // Always fail, except on self
1.146 + virtual int Opcode() const;
1.147 + virtual const Type *Value( PhaseTransform *phase ) const { return TypeInt::CC; }
1.148 + const Type *sub(const Type *t1, const Type *t2) const { return TypeInt::CC;}
1.149 +
1.150 +};
1.151 +
1.152 +#endif // SHARE_VM_OPTO_LOCKNODE_HPP
