Mercurial > hg > truffle
annotate src/share/vm/opto/connode.hpp @ 7666:31540ca73e81
Remove ControlFlowException in SimpleLanguage.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Fri, 01 Feb 2013 19:53:52 +0100 |
parents | d804e148cff8 |
children | 5ec7dace41a6 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
1552
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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. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_OPTO_CONNODE_HPP |
26 #define SHARE_VM_OPTO_CONNODE_HPP | |
27 | |
28 #include "opto/node.hpp" | |
29 #include "opto/opcodes.hpp" | |
30 #include "opto/type.hpp" | |
31 | |
0 | 32 class PhaseTransform; |
33 class MachNode; | |
34 | |
35 //------------------------------ConNode---------------------------------------- | |
36 // Simple constants | |
37 class ConNode : public TypeNode { | |
38 public: | |
39 ConNode( const Type *t ) : TypeNode(t,1) { | |
40 init_req(0, (Node*)Compile::current()->root()); | |
41 init_flags(Flag_is_Con); | |
42 } | |
43 virtual int Opcode() const; | |
44 virtual uint hash() const; | |
45 virtual const RegMask &out_RegMask() const { return RegMask::Empty; } | |
46 virtual const RegMask &in_RegMask(uint) const { return RegMask::Empty; } | |
47 | |
48 // Polymorphic factory method: | |
49 static ConNode* make( Compile* C, const Type *t ); | |
50 }; | |
51 | |
52 //------------------------------ConINode--------------------------------------- | |
53 // Simple integer constants | |
54 class ConINode : public ConNode { | |
55 public: | |
56 ConINode( const TypeInt *t ) : ConNode(t) {} | |
57 virtual int Opcode() const; | |
58 | |
59 // Factory method: | |
60 static ConINode* make( Compile* C, int con ) { | |
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61 return new (C) ConINode( TypeInt::make(con) ); |
0 | 62 } |
63 | |
64 }; | |
65 | |
66 //------------------------------ConPNode--------------------------------------- | |
67 // Simple pointer constants | |
68 class ConPNode : public ConNode { | |
69 public: | |
70 ConPNode( const TypePtr *t ) : ConNode(t) {} | |
71 virtual int Opcode() const; | |
72 | |
73 // Factory methods: | |
74 static ConPNode* make( Compile *C ,address con ) { | |
75 if (con == NULL) | |
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76 return new (C) ConPNode( TypePtr::NULL_PTR ) ; |
0 | 77 else |
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78 return new (C) ConPNode( TypeRawPtr::make(con) ); |
0 | 79 } |
80 }; | |
81 | |
82 | |
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83 //------------------------------ConNNode-------------------------------------- |
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84 // Simple narrow oop constants |
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85 class ConNNode : public ConNode { |
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86 public: |
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87 ConNNode( const TypeNarrowOop *t ) : ConNode(t) {} |
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88 virtual int Opcode() const; |
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89 }; |
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90 |
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91 //------------------------------ConNKlassNode--------------------------------- |
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92 // Simple narrow klass constants |
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93 class ConNKlassNode : public ConNode { |
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94 public: |
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95 ConNKlassNode( const TypeNarrowKlass *t ) : ConNode(t) {} |
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96 virtual int Opcode() const; |
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97 }; |
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98 |
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99 |
0 | 100 //------------------------------ConLNode--------------------------------------- |
101 // Simple long constants | |
102 class ConLNode : public ConNode { | |
103 public: | |
104 ConLNode( const TypeLong *t ) : ConNode(t) {} | |
105 virtual int Opcode() const; | |
106 | |
107 // Factory method: | |
108 static ConLNode* make( Compile *C ,jlong con ) { | |
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109 return new (C) ConLNode( TypeLong::make(con) ); |
0 | 110 } |
111 | |
112 }; | |
113 | |
114 //------------------------------ConFNode--------------------------------------- | |
115 // Simple float constants | |
116 class ConFNode : public ConNode { | |
117 public: | |
118 ConFNode( const TypeF *t ) : ConNode(t) {} | |
119 virtual int Opcode() const; | |
120 | |
121 // Factory method: | |
122 static ConFNode* make( Compile *C, float con ) { | |
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123 return new (C) ConFNode( TypeF::make(con) ); |
0 | 124 } |
125 | |
126 }; | |
127 | |
128 //------------------------------ConDNode--------------------------------------- | |
129 // Simple double constants | |
130 class ConDNode : public ConNode { | |
131 public: | |
132 ConDNode( const TypeD *t ) : ConNode(t) {} | |
133 virtual int Opcode() const; | |
134 | |
135 // Factory method: | |
136 static ConDNode* make( Compile *C, double con ) { | |
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137 return new (C) ConDNode( TypeD::make(con) ); |
0 | 138 } |
139 | |
140 }; | |
141 | |
142 //------------------------------BinaryNode------------------------------------- | |
143 // Place holder for the 2 conditional inputs to a CMove. CMove needs 4 | |
144 // inputs: the Bool (for the lt/gt/eq/ne bits), the flags (result of some | |
145 // compare), and the 2 values to select between. The Matcher requires a | |
146 // binary tree so we break it down like this: | |
147 // (CMove (Binary bol cmp) (Binary src1 src2)) | |
148 class BinaryNode : public Node { | |
149 public: | |
150 BinaryNode( Node *n1, Node *n2 ) : Node(0,n1,n2) { } | |
151 virtual int Opcode() const; | |
152 virtual uint ideal_reg() const { return 0; } | |
153 }; | |
154 | |
155 //------------------------------CMoveNode-------------------------------------- | |
156 // Conditional move | |
157 class CMoveNode : public TypeNode { | |
158 public: | |
159 enum { Control, // When is it safe to do this cmove? | |
160 Condition, // Condition controlling the cmove | |
161 IfFalse, // Value if condition is false | |
162 IfTrue }; // Value if condition is true | |
163 CMoveNode( Node *bol, Node *left, Node *right, const Type *t ) : TypeNode(t,4) | |
164 { | |
165 init_class_id(Class_CMove); | |
166 // all inputs are nullified in Node::Node(int) | |
167 // init_req(Control,NULL); | |
168 init_req(Condition,bol); | |
169 init_req(IfFalse,left); | |
170 init_req(IfTrue,right); | |
171 } | |
172 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
173 virtual const Type *Value( PhaseTransform *phase ) const; | |
174 virtual Node *Identity( PhaseTransform *phase ); | |
175 static CMoveNode *make( Compile *C, Node *c, Node *bol, Node *left, Node *right, const Type *t ); | |
176 // Helper function to spot cmove graph shapes | |
177 static Node *is_cmove_id( PhaseTransform *phase, Node *cmp, Node *t, Node *f, BoolNode *b ); | |
178 }; | |
179 | |
180 //------------------------------CMoveDNode------------------------------------- | |
181 class CMoveDNode : public CMoveNode { | |
182 public: | |
183 CMoveDNode( Node *bol, Node *left, Node *right, const Type* t) : CMoveNode(bol,left,right,t){} | |
184 virtual int Opcode() const; | |
185 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
186 }; | |
187 | |
188 //------------------------------CMoveFNode------------------------------------- | |
189 class CMoveFNode : public CMoveNode { | |
190 public: | |
191 CMoveFNode( Node *bol, Node *left, Node *right, const Type* t ) : CMoveNode(bol,left,right,t) {} | |
192 virtual int Opcode() const; | |
193 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
194 }; | |
195 | |
196 //------------------------------CMoveINode------------------------------------- | |
197 class CMoveINode : public CMoveNode { | |
198 public: | |
199 CMoveINode( Node *bol, Node *left, Node *right, const TypeInt *ti ) : CMoveNode(bol,left,right,ti){} | |
200 virtual int Opcode() const; | |
201 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
202 }; | |
203 | |
204 //------------------------------CMoveLNode------------------------------------- | |
205 class CMoveLNode : public CMoveNode { | |
206 public: | |
207 CMoveLNode(Node *bol, Node *left, Node *right, const TypeLong *tl ) : CMoveNode(bol,left,right,tl){} | |
208 virtual int Opcode() const; | |
209 }; | |
210 | |
211 //------------------------------CMovePNode------------------------------------- | |
212 class CMovePNode : public CMoveNode { | |
213 public: | |
214 CMovePNode( Node *c, Node *bol, Node *left, Node *right, const TypePtr* t ) : CMoveNode(bol,left,right,t) { init_req(Control,c); } | |
215 virtual int Opcode() const; | |
216 }; | |
217 | |
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218 //------------------------------CMoveNNode------------------------------------- |
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219 class CMoveNNode : public CMoveNode { |
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220 public: |
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221 CMoveNNode( Node *c, Node *bol, Node *left, Node *right, const Type* t ) : CMoveNode(bol,left,right,t) { init_req(Control,c); } |
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222 virtual int Opcode() const; |
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223 }; |
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224 |
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225 //------------------------------ConstraintCastNode----------------------------- |
0 | 226 // cast to a different range |
227 class ConstraintCastNode: public TypeNode { | |
228 public: | |
229 ConstraintCastNode (Node *n, const Type *t ): TypeNode(t,2) { | |
230 init_class_id(Class_ConstraintCast); | |
231 init_req(1, n); | |
232 } | |
233 virtual Node *Identity( PhaseTransform *phase ); | |
234 virtual const Type *Value( PhaseTransform *phase ) const; | |
235 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
236 virtual int Opcode() const; | |
237 virtual uint ideal_reg() const = 0; | |
238 virtual Node *Ideal_DU_postCCP( PhaseCCP * ); | |
239 }; | |
240 | |
241 //------------------------------CastIINode------------------------------------- | |
242 // cast integer to integer (different range) | |
243 class CastIINode: public ConstraintCastNode { | |
244 public: | |
245 CastIINode (Node *n, const Type *t ): ConstraintCastNode(n,t) {} | |
246 virtual int Opcode() const; | |
247 virtual uint ideal_reg() const { return Op_RegI; } | |
248 }; | |
249 | |
250 //------------------------------CastPPNode------------------------------------- | |
251 // cast pointer to pointer (different type) | |
252 class CastPPNode: public ConstraintCastNode { | |
253 public: | |
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254 CastPPNode (Node *n, const Type *t ): ConstraintCastNode(n, t) {} |
0 | 255 virtual int Opcode() const; |
256 virtual uint ideal_reg() const { return Op_RegP; } | |
257 virtual Node *Ideal_DU_postCCP( PhaseCCP * ); | |
258 }; | |
259 | |
260 //------------------------------CheckCastPPNode-------------------------------- | |
261 // for _checkcast, cast pointer to pointer (different type), without JOIN, | |
262 class CheckCastPPNode: public TypeNode { | |
263 public: | |
264 CheckCastPPNode( Node *c, Node *n, const Type *t ) : TypeNode(t,2) { | |
265 init_class_id(Class_CheckCastPP); | |
266 init_req(0, c); | |
267 init_req(1, n); | |
268 } | |
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269 |
0 | 270 virtual Node *Identity( PhaseTransform *phase ); |
271 virtual const Type *Value( PhaseTransform *phase ) const; | |
272 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
273 virtual int Opcode() const; | |
274 virtual uint ideal_reg() const { return Op_RegP; } | |
275 // No longer remove CheckCast after CCP as it gives me a place to hang | |
276 // the proper address type - which is required to compute anti-deps. | |
277 //virtual Node *Ideal_DU_postCCP( PhaseCCP * ); | |
278 }; | |
279 | |
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280 |
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281 //------------------------------EncodeNarrowPtr-------------------------------- |
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282 class EncodeNarrowPtrNode : public TypeNode { |
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283 protected: |
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284 EncodeNarrowPtrNode(Node* value, const Type* type): |
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285 TypeNode(type, 2) { |
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286 init_class_id(Class_EncodeNarrowPtr); |
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287 init_req(0, NULL); |
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288 init_req(1, value); |
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289 } |
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290 public: |
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291 virtual uint ideal_reg() const { return Op_RegN; } |
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292 virtual Node *Ideal_DU_postCCP( PhaseCCP *ccp ); |
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293 }; |
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294 |
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295 //------------------------------EncodeP-------------------------------- |
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296 // Encodes an oop pointers into its compressed form |
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297 // Takes an extra argument which is the real heap base as a long which |
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298 // may be useful for code generation in the backend. |
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299 class EncodePNode : public EncodeNarrowPtrNode { |
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300 public: |
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301 EncodePNode(Node* value, const Type* type): |
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302 EncodeNarrowPtrNode(value, type) { |
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303 init_class_id(Class_EncodeP); |
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304 } |
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305 virtual int Opcode() const; |
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306 virtual Node *Identity( PhaseTransform *phase ); |
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307 virtual const Type *Value( PhaseTransform *phase ) const; |
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308 }; |
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309 |
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310 //------------------------------EncodePKlass-------------------------------- |
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311 // Encodes a klass pointer into its compressed form |
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312 // Takes an extra argument which is the real heap base as a long which |
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313 // may be useful for code generation in the backend. |
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314 class EncodePKlassNode : public EncodeNarrowPtrNode { |
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315 public: |
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316 EncodePKlassNode(Node* value, const Type* type): |
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317 EncodeNarrowPtrNode(value, type) { |
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318 init_class_id(Class_EncodePKlass); |
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319 } |
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320 virtual int Opcode() const; |
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321 virtual Node *Identity( PhaseTransform *phase ); |
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322 virtual const Type *Value( PhaseTransform *phase ) const; |
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323 }; |
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324 |
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325 //------------------------------DecodeNarrowPtr-------------------------------- |
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326 class DecodeNarrowPtrNode : public TypeNode { |
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327 protected: |
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328 DecodeNarrowPtrNode(Node* value, const Type* type): |
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329 TypeNode(type, 2) { |
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330 init_class_id(Class_DecodeNarrowPtr); |
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331 init_req(0, NULL); |
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332 init_req(1, value); |
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333 } |
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334 public: |
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335 virtual uint ideal_reg() const { return Op_RegP; } |
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336 }; |
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337 |
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338 //------------------------------DecodeN-------------------------------- |
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339 // Converts a narrow oop into a real oop ptr. |
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340 // Takes an extra argument which is the real heap base as a long which |
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341 // may be useful for code generation in the backend. |
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342 class DecodeNNode : public DecodeNarrowPtrNode { |
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343 public: |
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344 DecodeNNode(Node* value, const Type* type): |
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345 DecodeNarrowPtrNode(value, type) { |
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346 init_class_id(Class_DecodeN); |
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347 } |
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348 virtual int Opcode() const; |
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349 virtual const Type *Value( PhaseTransform *phase ) const; |
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350 virtual Node *Identity( PhaseTransform *phase ); |
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351 }; |
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352 |
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353 //------------------------------DecodeNKlass-------------------------------- |
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354 // Converts a narrow klass pointer into a real klass ptr. |
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355 // Takes an extra argument which is the real heap base as a long which |
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356 // may be useful for code generation in the backend. |
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357 class DecodeNKlassNode : public DecodeNarrowPtrNode { |
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358 public: |
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359 DecodeNKlassNode(Node* value, const Type* type): |
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360 DecodeNarrowPtrNode(value, type) { |
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361 init_class_id(Class_DecodeNKlass); |
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362 } |
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363 virtual int Opcode() const; |
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364 virtual const Type *Value( PhaseTransform *phase ) const; |
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365 virtual Node *Identity( PhaseTransform *phase ); |
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366 }; |
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367 |
0 | 368 //------------------------------Conv2BNode------------------------------------- |
369 // Convert int/pointer to a Boolean. Map zero to zero, all else to 1. | |
370 class Conv2BNode : public Node { | |
371 public: | |
372 Conv2BNode( Node *i ) : Node(0,i) {} | |
373 virtual int Opcode() const; | |
374 virtual const Type *bottom_type() const { return TypeInt::BOOL; } | |
375 virtual Node *Identity( PhaseTransform *phase ); | |
376 virtual const Type *Value( PhaseTransform *phase ) const; | |
377 virtual uint ideal_reg() const { return Op_RegI; } | |
378 }; | |
379 | |
380 // The conversions operations are all Alpha sorted. Please keep it that way! | |
381 //------------------------------ConvD2FNode------------------------------------ | |
382 // Convert double to float | |
383 class ConvD2FNode : public Node { | |
384 public: | |
385 ConvD2FNode( Node *in1 ) : Node(0,in1) {} | |
386 virtual int Opcode() const; | |
387 virtual const Type *bottom_type() const { return Type::FLOAT; } | |
388 virtual const Type *Value( PhaseTransform *phase ) const; | |
389 virtual Node *Identity( PhaseTransform *phase ); | |
390 virtual uint ideal_reg() const { return Op_RegF; } | |
391 }; | |
392 | |
393 //------------------------------ConvD2INode------------------------------------ | |
394 // Convert Double to Integer | |
395 class ConvD2INode : public Node { | |
396 public: | |
397 ConvD2INode( Node *in1 ) : Node(0,in1) {} | |
398 virtual int Opcode() const; | |
399 virtual const Type *bottom_type() const { return TypeInt::INT; } | |
400 virtual const Type *Value( PhaseTransform *phase ) const; | |
401 virtual Node *Identity( PhaseTransform *phase ); | |
402 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
403 virtual uint ideal_reg() const { return Op_RegI; } | |
404 }; | |
405 | |
406 //------------------------------ConvD2LNode------------------------------------ | |
407 // Convert Double to Long | |
408 class ConvD2LNode : public Node { | |
409 public: | |
410 ConvD2LNode( Node *dbl ) : Node(0,dbl) {} | |
411 virtual int Opcode() const; | |
412 virtual const Type *bottom_type() const { return TypeLong::LONG; } | |
413 virtual const Type *Value( PhaseTransform *phase ) const; | |
414 virtual Node *Identity( PhaseTransform *phase ); | |
415 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
416 virtual uint ideal_reg() const { return Op_RegL; } | |
417 }; | |
418 | |
419 //------------------------------ConvF2DNode------------------------------------ | |
420 // Convert Float to a Double. | |
421 class ConvF2DNode : public Node { | |
422 public: | |
423 ConvF2DNode( Node *in1 ) : Node(0,in1) {} | |
424 virtual int Opcode() const; | |
425 virtual const Type *bottom_type() const { return Type::DOUBLE; } | |
426 virtual const Type *Value( PhaseTransform *phase ) const; | |
427 virtual uint ideal_reg() const { return Op_RegD; } | |
428 }; | |
429 | |
430 //------------------------------ConvF2INode------------------------------------ | |
431 // Convert float to integer | |
432 class ConvF2INode : public Node { | |
433 public: | |
434 ConvF2INode( Node *in1 ) : Node(0,in1) {} | |
435 virtual int Opcode() const; | |
436 virtual const Type *bottom_type() const { return TypeInt::INT; } | |
437 virtual const Type *Value( PhaseTransform *phase ) const; | |
438 virtual Node *Identity( PhaseTransform *phase ); | |
439 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
440 virtual uint ideal_reg() const { return Op_RegI; } | |
441 }; | |
442 | |
443 //------------------------------ConvF2LNode------------------------------------ | |
444 // Convert float to long | |
445 class ConvF2LNode : public Node { | |
446 public: | |
447 ConvF2LNode( Node *in1 ) : Node(0,in1) {} | |
448 virtual int Opcode() const; | |
449 virtual const Type *bottom_type() const { return TypeLong::LONG; } | |
450 virtual const Type *Value( PhaseTransform *phase ) const; | |
451 virtual Node *Identity( PhaseTransform *phase ); | |
452 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
453 virtual uint ideal_reg() const { return Op_RegL; } | |
454 }; | |
455 | |
456 //------------------------------ConvI2DNode------------------------------------ | |
457 // Convert Integer to Double | |
458 class ConvI2DNode : public Node { | |
459 public: | |
460 ConvI2DNode( Node *in1 ) : Node(0,in1) {} | |
461 virtual int Opcode() const; | |
462 virtual const Type *bottom_type() const { return Type::DOUBLE; } | |
463 virtual const Type *Value( PhaseTransform *phase ) const; | |
464 virtual uint ideal_reg() const { return Op_RegD; } | |
465 }; | |
466 | |
467 //------------------------------ConvI2FNode------------------------------------ | |
468 // Convert Integer to Float | |
469 class ConvI2FNode : public Node { | |
470 public: | |
471 ConvI2FNode( Node *in1 ) : Node(0,in1) {} | |
472 virtual int Opcode() const; | |
473 virtual const Type *bottom_type() const { return Type::FLOAT; } | |
474 virtual const Type *Value( PhaseTransform *phase ) const; | |
475 virtual Node *Identity( PhaseTransform *phase ); | |
476 virtual uint ideal_reg() const { return Op_RegF; } | |
477 }; | |
478 | |
479 //------------------------------ConvI2LNode------------------------------------ | |
480 // Convert integer to long | |
481 class ConvI2LNode : public TypeNode { | |
482 public: | |
483 ConvI2LNode(Node *in1, const TypeLong* t = TypeLong::INT) | |
484 : TypeNode(t, 2) | |
485 { init_req(1, in1); } | |
486 virtual int Opcode() const; | |
487 virtual const Type *Value( PhaseTransform *phase ) const; | |
488 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
489 virtual uint ideal_reg() const { return Op_RegL; } | |
490 }; | |
491 | |
492 //------------------------------ConvL2DNode------------------------------------ | |
493 // Convert Long to Double | |
494 class ConvL2DNode : public Node { | |
495 public: | |
496 ConvL2DNode( Node *in1 ) : Node(0,in1) {} | |
497 virtual int Opcode() const; | |
498 virtual const Type *bottom_type() const { return Type::DOUBLE; } | |
499 virtual const Type *Value( PhaseTransform *phase ) const; | |
500 virtual uint ideal_reg() const { return Op_RegD; } | |
501 }; | |
502 | |
503 //------------------------------ConvL2FNode------------------------------------ | |
504 // Convert Long to Float | |
505 class ConvL2FNode : public Node { | |
506 public: | |
507 ConvL2FNode( Node *in1 ) : Node(0,in1) {} | |
508 virtual int Opcode() const; | |
509 virtual const Type *bottom_type() const { return Type::FLOAT; } | |
510 virtual const Type *Value( PhaseTransform *phase ) const; | |
511 virtual uint ideal_reg() const { return Op_RegF; } | |
512 }; | |
513 | |
514 //------------------------------ConvL2INode------------------------------------ | |
515 // Convert long to integer | |
516 class ConvL2INode : public Node { | |
517 public: | |
518 ConvL2INode( Node *in1 ) : Node(0,in1) {} | |
519 virtual int Opcode() const; | |
520 virtual const Type *bottom_type() const { return TypeInt::INT; } | |
521 virtual Node *Identity( PhaseTransform *phase ); | |
522 virtual const Type *Value( PhaseTransform *phase ) const; | |
523 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
524 virtual uint ideal_reg() const { return Op_RegI; } | |
525 }; | |
526 | |
527 //------------------------------CastX2PNode------------------------------------- | |
528 // convert a machine-pointer-sized integer to a raw pointer | |
529 class CastX2PNode : public Node { | |
530 public: | |
531 CastX2PNode( Node *n ) : Node(NULL, n) {} | |
532 virtual int Opcode() const; | |
533 virtual const Type *Value( PhaseTransform *phase ) const; | |
534 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
535 virtual Node *Identity( PhaseTransform *phase ); | |
536 virtual uint ideal_reg() const { return Op_RegP; } | |
537 virtual const Type *bottom_type() const { return TypeRawPtr::BOTTOM; } | |
538 }; | |
539 | |
540 //------------------------------CastP2XNode------------------------------------- | |
541 // Used in both 32-bit and 64-bit land. | |
542 // Used for card-marks and unsafe pointer math. | |
543 class CastP2XNode : public Node { | |
544 public: | |
545 CastP2XNode( Node *ctrl, Node *n ) : Node(ctrl, n) {} | |
546 virtual int Opcode() const; | |
547 virtual const Type *Value( PhaseTransform *phase ) const; | |
548 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
549 virtual Node *Identity( PhaseTransform *phase ); | |
550 virtual uint ideal_reg() const { return Op_RegX; } | |
551 virtual const Type *bottom_type() const { return TypeX_X; } | |
552 // Return false to keep node from moving away from an associated card mark. | |
553 virtual bool depends_only_on_test() const { return false; } | |
554 }; | |
555 | |
556 //------------------------------ThreadLocalNode-------------------------------- | |
557 // Ideal Node which returns the base of ThreadLocalStorage. | |
558 class ThreadLocalNode : public Node { | |
559 public: | |
560 ThreadLocalNode( ) : Node((Node*)Compile::current()->root()) {} | |
561 virtual int Opcode() const; | |
562 virtual const Type *bottom_type() const { return TypeRawPtr::BOTTOM;} | |
563 virtual uint ideal_reg() const { return Op_RegP; } | |
564 }; | |
565 | |
566 //------------------------------LoadReturnPCNode------------------------------- | |
567 class LoadReturnPCNode: public Node { | |
568 public: | |
569 LoadReturnPCNode(Node *c) : Node(c) { } | |
570 virtual int Opcode() const; | |
571 virtual uint ideal_reg() const { return Op_RegP; } | |
572 }; | |
573 | |
574 | |
575 //-----------------------------RoundFloatNode---------------------------------- | |
576 class RoundFloatNode: public Node { | |
577 public: | |
578 RoundFloatNode(Node* c, Node *in1): Node(c, in1) {} | |
579 virtual int Opcode() const; | |
580 virtual const Type *bottom_type() const { return Type::FLOAT; } | |
581 virtual uint ideal_reg() const { return Op_RegF; } | |
582 virtual Node *Identity( PhaseTransform *phase ); | |
583 virtual const Type *Value( PhaseTransform *phase ) const; | |
584 }; | |
585 | |
586 | |
587 //-----------------------------RoundDoubleNode--------------------------------- | |
588 class RoundDoubleNode: public Node { | |
589 public: | |
590 RoundDoubleNode(Node* c, Node *in1): Node(c, in1) {} | |
591 virtual int Opcode() const; | |
592 virtual const Type *bottom_type() const { return Type::DOUBLE; } | |
593 virtual uint ideal_reg() const { return Op_RegD; } | |
594 virtual Node *Identity( PhaseTransform *phase ); | |
595 virtual const Type *Value( PhaseTransform *phase ) const; | |
596 }; | |
597 | |
598 //------------------------------Opaque1Node------------------------------------ | |
599 // A node to prevent unwanted optimizations. Allows constant folding. | |
600 // Stops value-numbering, Ideal calls or Identity functions. | |
601 class Opaque1Node : public Node { | |
602 virtual uint hash() const ; // { return NO_HASH; } | |
603 virtual uint cmp( const Node &n ) const; | |
604 public: | |
216
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605 Opaque1Node( Compile* C, Node *n ) : Node(0,n) { |
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606 // Put it on the Macro nodes list to removed during macro nodes expansion. |
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607 init_flags(Flag_is_macro); |
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608 C->add_macro_node(this); |
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609 } |
0 | 610 // Special version for the pre-loop to hold the original loop limit |
611 // which is consumed by range check elimination. | |
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612 Opaque1Node( Compile* C, Node *n, Node* orig_limit ) : Node(0,n,orig_limit) { |
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613 // Put it on the Macro nodes list to removed during macro nodes expansion. |
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614 init_flags(Flag_is_macro); |
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615 C->add_macro_node(this); |
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616 } |
0 | 617 Node* original_loop_limit() { return req()==3 ? in(2) : NULL; } |
618 virtual int Opcode() const; | |
619 virtual const Type *bottom_type() const { return TypeInt::INT; } | |
620 virtual Node *Identity( PhaseTransform *phase ); | |
621 }; | |
622 | |
623 //------------------------------Opaque2Node------------------------------------ | |
624 // A node to prevent unwanted optimizations. Allows constant folding. Stops | |
625 // value-numbering, most Ideal calls or Identity functions. This Node is | |
626 // specifically designed to prevent the pre-increment value of a loop trip | |
627 // counter from being live out of the bottom of the loop (hence causing the | |
628 // pre- and post-increment values both being live and thus requiring an extra | |
629 // temp register and an extra move). If we "accidentally" optimize through | |
630 // this kind of a Node, we'll get slightly pessimal, but correct, code. Thus | |
631 // it's OK to be slightly sloppy on optimizations here. | |
632 class Opaque2Node : public Node { | |
633 virtual uint hash() const ; // { return NO_HASH; } | |
634 virtual uint cmp( const Node &n ) const; | |
635 public: | |
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636 Opaque2Node( Compile* C, Node *n ) : Node(0,n) { |
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637 // Put it on the Macro nodes list to removed during macro nodes expansion. |
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638 init_flags(Flag_is_macro); |
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639 C->add_macro_node(this); |
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640 } |
0 | 641 virtual int Opcode() const; |
642 virtual const Type *bottom_type() const { return TypeInt::INT; } | |
643 }; | |
644 | |
645 //----------------------PartialSubtypeCheckNode-------------------------------- | |
646 // The 2nd slow-half of a subtype check. Scan the subklass's 2ndary superklass | |
647 // array for an instance of the superklass. Set a hidden internal cache on a | |
648 // hit (cache is checked with exposed code in gen_subtype_check()). Return | |
649 // not zero for a miss or zero for a hit. | |
650 class PartialSubtypeCheckNode : public Node { | |
651 public: | |
652 PartialSubtypeCheckNode(Node* c, Node* sub, Node* super) : Node(c,sub,super) {} | |
653 virtual int Opcode() const; | |
654 virtual const Type *bottom_type() const { return TypeRawPtr::BOTTOM; } | |
655 virtual uint ideal_reg() const { return Op_RegP; } | |
656 }; | |
657 | |
658 // | |
659 class MoveI2FNode : public Node { | |
660 public: | |
661 MoveI2FNode( Node *value ) : Node(0,value) {} | |
662 virtual int Opcode() const; | |
663 virtual const Type *bottom_type() const { return Type::FLOAT; } | |
664 virtual uint ideal_reg() const { return Op_RegF; } | |
665 virtual const Type* Value( PhaseTransform *phase ) const; | |
666 }; | |
667 | |
668 class MoveL2DNode : public Node { | |
669 public: | |
670 MoveL2DNode( Node *value ) : Node(0,value) {} | |
671 virtual int Opcode() const; | |
672 virtual const Type *bottom_type() const { return Type::DOUBLE; } | |
673 virtual uint ideal_reg() const { return Op_RegD; } | |
674 virtual const Type* Value( PhaseTransform *phase ) const; | |
675 }; | |
676 | |
677 class MoveF2INode : public Node { | |
678 public: | |
679 MoveF2INode( Node *value ) : Node(0,value) {} | |
680 virtual int Opcode() const; | |
681 virtual const Type *bottom_type() const { return TypeInt::INT; } | |
682 virtual uint ideal_reg() const { return Op_RegI; } | |
683 virtual const Type* Value( PhaseTransform *phase ) const; | |
684 }; | |
685 | |
686 class MoveD2LNode : public Node { | |
687 public: | |
688 MoveD2LNode( Node *value ) : Node(0,value) {} | |
689 virtual int Opcode() const; | |
690 virtual const Type *bottom_type() const { return TypeLong::LONG; } | |
691 virtual uint ideal_reg() const { return Op_RegL; } | |
692 virtual const Type* Value( PhaseTransform *phase ) const; | |
693 }; | |
643
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694 |
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695 //---------- CountBitsNode ----------------------------------------------------- |
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696 class CountBitsNode : public Node { |
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697 public: |
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698 CountBitsNode(Node* in1) : Node(0, in1) {} |
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699 const Type* bottom_type() const { return TypeInt::INT; } |
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700 virtual uint ideal_reg() const { return Op_RegI; } |
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701 }; |
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702 |
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703 //---------- CountLeadingZerosINode -------------------------------------------- |
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704 // Count leading zeros (0-bit count starting from MSB) of an integer. |
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705 class CountLeadingZerosINode : public CountBitsNode { |
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706 public: |
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707 CountLeadingZerosINode(Node* in1) : CountBitsNode(in1) {} |
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708 virtual int Opcode() const; |
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709 virtual const Type* Value(PhaseTransform* phase) const; |
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710 }; |
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711 |
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712 //---------- CountLeadingZerosLNode -------------------------------------------- |
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713 // Count leading zeros (0-bit count starting from MSB) of a long. |
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714 class CountLeadingZerosLNode : public CountBitsNode { |
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715 public: |
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716 CountLeadingZerosLNode(Node* in1) : CountBitsNode(in1) {} |
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717 virtual int Opcode() const; |
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718 virtual const Type* Value(PhaseTransform* phase) const; |
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719 }; |
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720 |
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721 //---------- CountTrailingZerosINode ------------------------------------------- |
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722 // Count trailing zeros (0-bit count starting from LSB) of an integer. |
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723 class CountTrailingZerosINode : public CountBitsNode { |
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724 public: |
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725 CountTrailingZerosINode(Node* in1) : CountBitsNode(in1) {} |
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726 virtual int Opcode() const; |
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727 virtual const Type* Value(PhaseTransform* phase) const; |
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728 }; |
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729 |
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730 //---------- CountTrailingZerosLNode ------------------------------------------- |
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731 // Count trailing zeros (0-bit count starting from LSB) of a long. |
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732 class CountTrailingZerosLNode : public CountBitsNode { |
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733 public: |
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734 CountTrailingZerosLNode(Node* in1) : CountBitsNode(in1) {} |
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735 virtual int Opcode() const; |
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736 virtual const Type* Value(PhaseTransform* phase) const; |
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737 }; |
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738 |
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739 //---------- PopCountINode ----------------------------------------------------- |
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740 // Population count (bit count) of an integer. |
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741 class PopCountINode : public CountBitsNode { |
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742 public: |
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743 PopCountINode(Node* in1) : CountBitsNode(in1) {} |
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744 virtual int Opcode() const; |
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745 }; |
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746 |
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747 //---------- PopCountLNode ----------------------------------------------------- |
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748 // Population count (bit count) of a long. |
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749 class PopCountLNode : public CountBitsNode { |
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750 public: |
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751 PopCountLNode(Node* in1) : CountBitsNode(in1) {} |
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752 virtual int Opcode() const; |
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753 }; |
1972 | 754 |
755 #endif // SHARE_VM_OPTO_CONNODE_HPP |