1 /*
2 * Copyright 1997-2007 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 class PhaseTransform;
26 class MachNode;
27
28 //------------------------------ConNode----------------------------------------
29 // Simple constants
30 class ConNode : public TypeNode {
31 public:
32 ConNode( const Type *t ) : TypeNode(t,1) {
33 init_req(0, (Node*)Compile::current()->root());
34 init_flags(Flag_is_Con);
35 }
36 virtual int Opcode() const;
37 virtual uint hash() const;
38 virtual const RegMask &out_RegMask() const { return RegMask::Empty; }
39 virtual const RegMask &in_RegMask(uint) const { return RegMask::Empty; }
40
41 // Polymorphic factory method:
42 static ConNode* make( Compile* C, const Type *t );
43 };
44
45 //------------------------------ConINode---------------------------------------
46 // Simple integer constants
47 class ConINode : public ConNode {
48 public:
49 ConINode( const TypeInt *t ) : ConNode(t) {}
50 virtual int Opcode() const;
51
52 // Factory method:
53 static ConINode* make( Compile* C, int con ) {
54 return new (C, 1) ConINode( TypeInt::make(con) );
55 }
56
57 };
58
59 //------------------------------ConPNode---------------------------------------
60 // Simple pointer constants
61 class ConPNode : public ConNode {
62 public:
63 ConPNode( const TypePtr *t ) : ConNode(t) {}
64 virtual int Opcode() const;
65
66 // Factory methods:
67 static ConPNode* make( Compile *C ,address con ) {
68 if (con == NULL)
69 return new (C, 1) ConPNode( TypePtr::NULL_PTR ) ;
70 else
71 return new (C, 1) ConPNode( TypeRawPtr::make(con) );
72 }
73
74 static ConPNode* make( Compile *C, ciObject* con ) {
75 return new (C, 1) ConPNode( TypeOopPtr::make_from_constant(con) );
76 }
77
78 };
79
80
81 //------------------------------ConNNode--------------------------------------
82 // Simple narrow oop constants
83 class ConNNode : public ConNode {
84 public:
85 ConNNode( const TypeNarrowOop *t ) : ConNode(t) {}
86 virtual int Opcode() const;
87
88 static ConNNode* make( Compile *C, ciObject* con ) {
89 return new (C, 1) ConNNode( TypeNarrowOop::make_from_constant(con) );
90 }
91
92 };
93
94
95 //------------------------------ConLNode---------------------------------------
96 // Simple long constants
97 class ConLNode : public ConNode {
98 public:
99 ConLNode( const TypeLong *t ) : ConNode(t) {}
100 virtual int Opcode() const;
101
102 // Factory method:
103 static ConLNode* make( Compile *C ,jlong con ) {
104 return new (C, 1) ConLNode( TypeLong::make(con) );
105 }
106
107 };
108
109 //------------------------------ConFNode---------------------------------------
110 // Simple float constants
111 class ConFNode : public ConNode {
112 public:
113 ConFNode( const TypeF *t ) : ConNode(t) {}
114 virtual int Opcode() const;
115
116 // Factory method:
117 static ConFNode* make( Compile *C, float con ) {
118 return new (C, 1) ConFNode( TypeF::make(con) );
119 }
120
121 };
122
123 //------------------------------ConDNode---------------------------------------
124 // Simple double constants
125 class ConDNode : public ConNode {
126 public:
127 ConDNode( const TypeD *t ) : ConNode(t) {}
128 virtual int Opcode() const;
129
130 // Factory method:
131 static ConDNode* make( Compile *C, double con ) {
132 return new (C, 1) ConDNode( TypeD::make(con) );
133 }
134
135 };
136
137 //------------------------------BinaryNode-------------------------------------
138 // Place holder for the 2 conditional inputs to a CMove. CMove needs 4
139 // inputs: the Bool (for the lt/gt/eq/ne bits), the flags (result of some
140 // compare), and the 2 values to select between. The Matcher requires a
141 // binary tree so we break it down like this:
142 // (CMove (Binary bol cmp) (Binary src1 src2))
143 class BinaryNode : public Node {
144 public:
145 BinaryNode( Node *n1, Node *n2 ) : Node(0,n1,n2) { }
146 virtual int Opcode() const;
147 virtual uint ideal_reg() const { return 0; }
148 };
149
150 //------------------------------CMoveNode--------------------------------------
151 // Conditional move
152 class CMoveNode : public TypeNode {
153 public:
154 enum { Control, // When is it safe to do this cmove?
155 Condition, // Condition controlling the cmove
156 IfFalse, // Value if condition is false
157 IfTrue }; // Value if condition is true
158 CMoveNode( Node *bol, Node *left, Node *right, const Type *t ) : TypeNode(t,4)
159 {
160 init_class_id(Class_CMove);
161 // all inputs are nullified in Node::Node(int)
162 // init_req(Control,NULL);
163 init_req(Condition,bol);
164 init_req(IfFalse,left);
165 init_req(IfTrue,right);
166 }
167 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
168 virtual const Type *Value( PhaseTransform *phase ) const;
169 virtual Node *Identity( PhaseTransform *phase );
170 static CMoveNode *make( Compile *C, Node *c, Node *bol, Node *left, Node *right, const Type *t );
171 // Helper function to spot cmove graph shapes
172 static Node *is_cmove_id( PhaseTransform *phase, Node *cmp, Node *t, Node *f, BoolNode *b );
173 };
174
175 //------------------------------CMoveDNode-------------------------------------
176 class CMoveDNode : public CMoveNode {
177 public:
178 CMoveDNode( Node *bol, Node *left, Node *right, const Type* t) : CMoveNode(bol,left,right,t){}
179 virtual int Opcode() const;
180 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
181 };
182
183 //------------------------------CMoveFNode-------------------------------------
184 class CMoveFNode : public CMoveNode {
185 public:
186 CMoveFNode( Node *bol, Node *left, Node *right, const Type* t ) : CMoveNode(bol,left,right,t) {}
187 virtual int Opcode() const;
188 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
189 };
190
191 //------------------------------CMoveINode-------------------------------------
192 class CMoveINode : public CMoveNode {
193 public:
194 CMoveINode( Node *bol, Node *left, Node *right, const TypeInt *ti ) : CMoveNode(bol,left,right,ti){}
195 virtual int Opcode() const;
196 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
197 };
198
199 //------------------------------CMoveLNode-------------------------------------
200 class CMoveLNode : public CMoveNode {
201 public:
202 CMoveLNode(Node *bol, Node *left, Node *right, const TypeLong *tl ) : CMoveNode(bol,left,right,tl){}
203 virtual int Opcode() const;
204 };
205
206 //------------------------------CMovePNode-------------------------------------
207 class CMovePNode : public CMoveNode {
208 public:
209 CMovePNode( Node *c, Node *bol, Node *left, Node *right, const TypePtr* t ) : CMoveNode(bol,left,right,t) { init_req(Control,c); }
210 virtual int Opcode() const;
211 };
212
213 //------------------------------ConstraintCastNode-------------------------------------
214 // cast to a different range
215 class ConstraintCastNode: public TypeNode {
216 public:
217 ConstraintCastNode (Node *n, const Type *t ): TypeNode(t,2) {
218 init_class_id(Class_ConstraintCast);
219 init_req(1, n);
220 }
221 virtual Node *Identity( PhaseTransform *phase );
222 virtual const Type *Value( PhaseTransform *phase ) const;
223 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
224 virtual int Opcode() const;
225 virtual uint ideal_reg() const = 0;
226 virtual Node *Ideal_DU_postCCP( PhaseCCP * );
227 };
228
229 //------------------------------CastIINode-------------------------------------
230 // cast integer to integer (different range)
231 class CastIINode: public ConstraintCastNode {
232 public:
233 CastIINode (Node *n, const Type *t ): ConstraintCastNode(n,t) {}
234 virtual int Opcode() const;
235 virtual uint ideal_reg() const { return Op_RegI; }
236 };
237
238 //------------------------------CastPPNode-------------------------------------
239 // cast pointer to pointer (different type)
240 class CastPPNode: public ConstraintCastNode {
241 public:
242 CastPPNode (Node *n, const Type *t ): ConstraintCastNode(n, t) {
243 // Only CastPP is safe. CastII can cause optimizer loops.
244 init_flags(Flag_is_dead_loop_safe);
245 }
246 virtual int Opcode() const;
247 virtual uint ideal_reg() const { return Op_RegP; }
248 virtual Node *Ideal_DU_postCCP( PhaseCCP * );
249 };
250
251 //------------------------------CheckCastPPNode--------------------------------
252 // for _checkcast, cast pointer to pointer (different type), without JOIN,
253 class CheckCastPPNode: public TypeNode {
254 public:
255 CheckCastPPNode( Node *c, Node *n, const Type *t ) : TypeNode(t,2) {
256 init_class_id(Class_CheckCastPP);
257 init_flags(Flag_is_dead_loop_safe);
258 init_req(0, c);
259 init_req(1, n);
260 }
261 virtual Node *Identity( PhaseTransform *phase );
262 virtual const Type *Value( PhaseTransform *phase ) const;
263 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
264 virtual int Opcode() const;
265 virtual uint ideal_reg() const { return Op_RegP; }
266 // No longer remove CheckCast after CCP as it gives me a place to hang
267 // the proper address type - which is required to compute anti-deps.
268 //virtual Node *Ideal_DU_postCCP( PhaseCCP * );
269 };
270
271
272 //------------------------------EncodeP--------------------------------
273 // Encodes an oop pointers into its compressed form
274 // Takes an extra argument which is the real heap base as a long which
275 // may be useful for code generation in the backend.
276 class EncodePNode : public TypeNode {
277 public:
278 EncodePNode(Node* value, const Type* type):
279 TypeNode(type, 2) {
280 init_req(0, NULL);
281 init_req(1, value);
282 }
283 virtual int Opcode() const;
284 virtual Node *Identity( PhaseTransform *phase );
285 virtual uint ideal_reg() const { return Op_RegN; }
286
287 static Node* encode(PhaseGVN* phase, Node* value);
288 };
289
290 //------------------------------DecodeN--------------------------------
291 // Converts a narrow oop into a real oop ptr.
292 // Takes an extra argument which is the real heap base as a long which
293 // may be useful for code generation in the backend.
294 class DecodeNNode : public TypeNode {
295 public:
296 DecodeNNode(Node* value, const Type* type):
297 TypeNode(type, 2) {
298 init_req(0, NULL);
299 init_req(1, value);
300 }
301 virtual int Opcode() const;
302 virtual Node *Identity( PhaseTransform *phase );
303 virtual uint ideal_reg() const { return Op_RegP; }
304 };
305
306 //------------------------------Conv2BNode-------------------------------------
307 // Convert int/pointer to a Boolean. Map zero to zero, all else to 1.
308 class Conv2BNode : public Node {
309 public:
310 Conv2BNode( Node *i ) : Node(0,i) {}
311 virtual int Opcode() const;
312 virtual const Type *bottom_type() const { return TypeInt::BOOL; }
313 virtual Node *Identity( PhaseTransform *phase );
314 virtual const Type *Value( PhaseTransform *phase ) const;
315 virtual uint ideal_reg() const { return Op_RegI; }
316 };
317
318 // The conversions operations are all Alpha sorted. Please keep it that way!
319 //------------------------------ConvD2FNode------------------------------------
320 // Convert double to float
321 class ConvD2FNode : public Node {
322 public:
323 ConvD2FNode( Node *in1 ) : Node(0,in1) {}
324 virtual int Opcode() const;
325 virtual const Type *bottom_type() const { return Type::FLOAT; }
326 virtual const Type *Value( PhaseTransform *phase ) const;
327 virtual Node *Identity( PhaseTransform *phase );
328 virtual uint ideal_reg() const { return Op_RegF; }
329 };
330
331 //------------------------------ConvD2INode------------------------------------
332 // Convert Double to Integer
333 class ConvD2INode : public Node {
334 public:
335 ConvD2INode( Node *in1 ) : Node(0,in1) {}
336 virtual int Opcode() const;
337 virtual const Type *bottom_type() const { return TypeInt::INT; }
338 virtual const Type *Value( PhaseTransform *phase ) const;
339 virtual Node *Identity( PhaseTransform *phase );
340 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
341 virtual uint ideal_reg() const { return Op_RegI; }
342 };
343
344 //------------------------------ConvD2LNode------------------------------------
345 // Convert Double to Long
346 class ConvD2LNode : public Node {
347 public:
348 ConvD2LNode( Node *dbl ) : Node(0,dbl) {}
349 virtual int Opcode() const;
350 virtual const Type *bottom_type() const { return TypeLong::LONG; }
351 virtual const Type *Value( PhaseTransform *phase ) const;
352 virtual Node *Identity( PhaseTransform *phase );
353 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
354 virtual uint ideal_reg() const { return Op_RegL; }
355 };
356
357 //------------------------------ConvF2DNode------------------------------------
358 // Convert Float to a Double.
359 class ConvF2DNode : public Node {
360 public:
361 ConvF2DNode( Node *in1 ) : Node(0,in1) {}
362 virtual int Opcode() const;
363 virtual const Type *bottom_type() const { return Type::DOUBLE; }
364 virtual const Type *Value( PhaseTransform *phase ) const;
365 virtual uint ideal_reg() const { return Op_RegD; }
366 };
367
368 //------------------------------ConvF2INode------------------------------------
369 // Convert float to integer
370 class ConvF2INode : public Node {
371 public:
372 ConvF2INode( Node *in1 ) : Node(0,in1) {}
373 virtual int Opcode() const;
374 virtual const Type *bottom_type() const { return TypeInt::INT; }
375 virtual const Type *Value( PhaseTransform *phase ) const;
376 virtual Node *Identity( PhaseTransform *phase );
377 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
378 virtual uint ideal_reg() const { return Op_RegI; }
379 };
380
381 //------------------------------ConvF2LNode------------------------------------
382 // Convert float to long
383 class ConvF2LNode : public Node {
384 public:
385 ConvF2LNode( Node *in1 ) : Node(0,in1) {}
386 virtual int Opcode() const;
387 virtual const Type *bottom_type() const { return TypeLong::LONG; }
388 virtual const Type *Value( PhaseTransform *phase ) const;
389 virtual Node *Identity( PhaseTransform *phase );
390 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
391 virtual uint ideal_reg() const { return Op_RegL; }
392 };
393
394 //------------------------------ConvI2DNode------------------------------------
395 // Convert Integer to Double
396 class ConvI2DNode : public Node {
397 public:
398 ConvI2DNode( Node *in1 ) : Node(0,in1) {}
399 virtual int Opcode() const;
400 virtual const Type *bottom_type() const { return Type::DOUBLE; }
401 virtual const Type *Value( PhaseTransform *phase ) const;
402 virtual uint ideal_reg() const { return Op_RegD; }
403 };
404
405 //------------------------------ConvI2FNode------------------------------------
406 // Convert Integer to Float
407 class ConvI2FNode : public Node {
408 public:
409 ConvI2FNode( Node *in1 ) : Node(0,in1) {}
410 virtual int Opcode() const;
411 virtual const Type *bottom_type() const { return Type::FLOAT; }
412 virtual const Type *Value( PhaseTransform *phase ) const;
413 virtual Node *Identity( PhaseTransform *phase );
414 virtual uint ideal_reg() const { return Op_RegF; }
415 };
416
417 //------------------------------ConvI2LNode------------------------------------
418 // Convert integer to long
419 class ConvI2LNode : public TypeNode {
420 public:
421 ConvI2LNode(Node *in1, const TypeLong* t = TypeLong::INT)
422 : TypeNode(t, 2)
423 { init_req(1, in1); }
424 virtual int Opcode() const;
425 virtual const Type *Value( PhaseTransform *phase ) const;
426 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
427 virtual uint ideal_reg() const { return Op_RegL; }
428 };
429
430 //------------------------------ConvL2DNode------------------------------------
431 // Convert Long to Double
432 class ConvL2DNode : public Node {
433 public:
434 ConvL2DNode( Node *in1 ) : Node(0,in1) {}
435 virtual int Opcode() const;
436 virtual const Type *bottom_type() const { return Type::DOUBLE; }
437 virtual const Type *Value( PhaseTransform *phase ) const;
438 virtual uint ideal_reg() const { return Op_RegD; }
439 };
440
441 //------------------------------ConvL2FNode------------------------------------
442 // Convert Long to Float
443 class ConvL2FNode : public Node {
444 public:
445 ConvL2FNode( Node *in1 ) : Node(0,in1) {}
446 virtual int Opcode() const;
447 virtual const Type *bottom_type() const { return Type::FLOAT; }
448 virtual const Type *Value( PhaseTransform *phase ) const;
449 virtual uint ideal_reg() const { return Op_RegF; }
450 };
451
452 //------------------------------ConvL2INode------------------------------------
453 // Convert long to integer
454 class ConvL2INode : public Node {
455 public:
456 ConvL2INode( Node *in1 ) : Node(0,in1) {}
457 virtual int Opcode() const;
458 virtual const Type *bottom_type() const { return TypeInt::INT; }
459 virtual Node *Identity( PhaseTransform *phase );
460 virtual const Type *Value( PhaseTransform *phase ) const;
461 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
462 virtual uint ideal_reg() const { return Op_RegI; }
463 };
464
465 //------------------------------CastX2PNode-------------------------------------
466 // convert a machine-pointer-sized integer to a raw pointer
467 class CastX2PNode : public Node {
468 public:
469 CastX2PNode( Node *n ) : Node(NULL, n) {}
470 virtual int Opcode() const;
471 virtual const Type *Value( PhaseTransform *phase ) const;
472 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
473 virtual Node *Identity( PhaseTransform *phase );
474 virtual uint ideal_reg() const { return Op_RegP; }
475 virtual const Type *bottom_type() const { return TypeRawPtr::BOTTOM; }
476 };
477
478 //------------------------------CastP2XNode-------------------------------------
479 // Used in both 32-bit and 64-bit land.
480 // Used for card-marks and unsafe pointer math.
481 class CastP2XNode : public Node {
482 public:
483 CastP2XNode( Node *ctrl, Node *n ) : Node(ctrl, n) {}
484 virtual int Opcode() const;
485 virtual const Type *Value( PhaseTransform *phase ) const;
486 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
487 virtual Node *Identity( PhaseTransform *phase );
488 virtual uint ideal_reg() const { return Op_RegX; }
489 virtual const Type *bottom_type() const { return TypeX_X; }
490 // Return false to keep node from moving away from an associated card mark.
491 virtual bool depends_only_on_test() const { return false; }
492 };
493
494 //------------------------------MemMoveNode------------------------------------
495 // Memory to memory move. Inserted very late, after allocation.
496 class MemMoveNode : public Node {
497 public:
498 MemMoveNode( Node *dst, Node *src ) : Node(0,dst,src) {}
499 virtual int Opcode() const;
500 };
501
502 //------------------------------ThreadLocalNode--------------------------------
503 // Ideal Node which returns the base of ThreadLocalStorage.
504 class ThreadLocalNode : public Node {
505 public:
506 ThreadLocalNode( ) : Node((Node*)Compile::current()->root()) {}
507 virtual int Opcode() const;
508 virtual const Type *bottom_type() const { return TypeRawPtr::BOTTOM;}
509 virtual uint ideal_reg() const { return Op_RegP; }
510 };
511
512 //------------------------------LoadReturnPCNode-------------------------------
513 class LoadReturnPCNode: public Node {
514 public:
515 LoadReturnPCNode(Node *c) : Node(c) { }
516 virtual int Opcode() const;
517 virtual uint ideal_reg() const { return Op_RegP; }
518 };
519
520
521 //-----------------------------RoundFloatNode----------------------------------
522 class RoundFloatNode: public Node {
523 public:
524 RoundFloatNode(Node* c, Node *in1): Node(c, in1) {}
525 virtual int Opcode() const;
526 virtual const Type *bottom_type() const { return Type::FLOAT; }
527 virtual uint ideal_reg() const { return Op_RegF; }
528 virtual Node *Identity( PhaseTransform *phase );
529 virtual const Type *Value( PhaseTransform *phase ) const;
530 };
531
532
533 //-----------------------------RoundDoubleNode---------------------------------
534 class RoundDoubleNode: public Node {
535 public:
536 RoundDoubleNode(Node* c, Node *in1): Node(c, in1) {}
537 virtual int Opcode() const;
538 virtual const Type *bottom_type() const { return Type::DOUBLE; }
539 virtual uint ideal_reg() const { return Op_RegD; }
540 virtual Node *Identity( PhaseTransform *phase );
541 virtual const Type *Value( PhaseTransform *phase ) const;
542 };
543
544 //------------------------------Opaque1Node------------------------------------
545 // A node to prevent unwanted optimizations. Allows constant folding.
546 // Stops value-numbering, Ideal calls or Identity functions.
547 class Opaque1Node : public Node {
548 virtual uint hash() const ; // { return NO_HASH; }
549 virtual uint cmp( const Node &n ) const;
550 public:
551 Opaque1Node( Node *n ) : Node(0,n) {}
552 // Special version for the pre-loop to hold the original loop limit
553 // which is consumed by range check elimination.
554 Opaque1Node( Node *n, Node* orig_limit ) : Node(0,n,orig_limit) {}
555 Node* original_loop_limit() { return req()==3 ? in(2) : NULL; }
556 virtual int Opcode() const;
557 virtual const Type *bottom_type() const { return TypeInt::INT; }
558 virtual Node *Identity( PhaseTransform *phase );
559 };
560
561 //------------------------------Opaque2Node------------------------------------
562 // A node to prevent unwanted optimizations. Allows constant folding. Stops
563 // value-numbering, most Ideal calls or Identity functions. This Node is
564 // specifically designed to prevent the pre-increment value of a loop trip
565 // counter from being live out of the bottom of the loop (hence causing the
566 // pre- and post-increment values both being live and thus requiring an extra
567 // temp register and an extra move). If we "accidentally" optimize through
568 // this kind of a Node, we'll get slightly pessimal, but correct, code. Thus
569 // it's OK to be slightly sloppy on optimizations here.
570 class Opaque2Node : public Node {
571 virtual uint hash() const ; // { return NO_HASH; }
572 virtual uint cmp( const Node &n ) const;
573 public:
574 Opaque2Node( Node *n ) : Node(0,n) {}
575 virtual int Opcode() const;
576 virtual const Type *bottom_type() const { return TypeInt::INT; }
577 };
578
579 //----------------------PartialSubtypeCheckNode--------------------------------
580 // The 2nd slow-half of a subtype check. Scan the subklass's 2ndary superklass
581 // array for an instance of the superklass. Set a hidden internal cache on a
582 // hit (cache is checked with exposed code in gen_subtype_check()). Return
583 // not zero for a miss or zero for a hit.
584 class PartialSubtypeCheckNode : public Node {
585 public:
586 PartialSubtypeCheckNode(Node* c, Node* sub, Node* super) : Node(c,sub,super) {}
587 virtual int Opcode() const;
588 virtual const Type *bottom_type() const { return TypeRawPtr::BOTTOM; }
589 virtual uint ideal_reg() const { return Op_RegP; }
590 };
591
592 //
593 class MoveI2FNode : public Node {
594 public:
595 MoveI2FNode( Node *value ) : Node(0,value) {}
596 virtual int Opcode() const;
597 virtual const Type *bottom_type() const { return Type::FLOAT; }
598 virtual uint ideal_reg() const { return Op_RegF; }
599 virtual const Type* Value( PhaseTransform *phase ) const;
600 };
601
602 class MoveL2DNode : public Node {
603 public:
604 MoveL2DNode( Node *value ) : Node(0,value) {}
605 virtual int Opcode() const;
606 virtual const Type *bottom_type() const { return Type::DOUBLE; }
607 virtual uint ideal_reg() const { return Op_RegD; }
608 virtual const Type* Value( PhaseTransform *phase ) const;
609 };
610
611 class MoveF2INode : public Node {
612 public:
613 MoveF2INode( Node *value ) : Node(0,value) {}
614 virtual int Opcode() const;
615 virtual const Type *bottom_type() const { return TypeInt::INT; }
616 virtual uint ideal_reg() const { return Op_RegI; }
617 virtual const Type* Value( PhaseTransform *phase ) const;
618 };
619
620 class MoveD2LNode : public Node {
621 public:
622 MoveD2LNode( Node *value ) : Node(0,value) {}
623 virtual int Opcode() const;
624 virtual const Type *bottom_type() const { return TypeLong::LONG; }
625 virtual uint ideal_reg() const { return Op_RegL; }
626 virtual const Type* Value( PhaseTransform *phase ) const;
627 };