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 virtual int Opcode() const;
244 virtual uint ideal_reg() const { return Op_RegP; }
245 virtual Node *Ideal_DU_postCCP( PhaseCCP * );
246 };
247
248 //------------------------------CheckCastPPNode--------------------------------
249 // for _checkcast, cast pointer to pointer (different type), without JOIN,
250 class CheckCastPPNode: public TypeNode {
251 public:
252 CheckCastPPNode( Node *c, Node *n, const Type *t ) : TypeNode(t,2) {
253 init_class_id(Class_CheckCastPP);
254 init_req(0, c);
255 init_req(1, n);
256 }
257
258 virtual Node *Identity( PhaseTransform *phase );
259 virtual const Type *Value( PhaseTransform *phase ) const;
260 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
261 virtual int Opcode() const;
262 virtual uint ideal_reg() const { return Op_RegP; }
263 // No longer remove CheckCast after CCP as it gives me a place to hang
264 // the proper address type - which is required to compute anti-deps.
265 //virtual Node *Ideal_DU_postCCP( PhaseCCP * );
266 };
267
268
269 //------------------------------EncodeP--------------------------------
270 // Encodes an oop pointers into its compressed form
271 // Takes an extra argument which is the real heap base as a long which
272 // may be useful for code generation in the backend.
273 class EncodePNode : public TypeNode {
274 public:
275 EncodePNode(Node* value, const Type* type):
276 TypeNode(type, 2) {
277 init_req(0, NULL);
278 init_req(1, value);
279 }
280 virtual int Opcode() const;
281 virtual Node *Identity( PhaseTransform *phase );
282 virtual const Type *Value( PhaseTransform *phase ) const;
283 virtual uint ideal_reg() const { return Op_RegN; }
284
285 static Node* encode(PhaseGVN* phase, Node* value);
286 };
287
288 //------------------------------DecodeN--------------------------------
289 // Converts a narrow oop into a real oop ptr.
290 // Takes an extra argument which is the real heap base as a long which
291 // may be useful for code generation in the backend.
292 class DecodeNNode : public TypeNode {
293 public:
294 DecodeNNode(Node* value, const Type* type):
295 TypeNode(type, 2) {
296 init_req(0, NULL);
297 init_req(1, value);
298 }
299 virtual int Opcode() const;
300 virtual Node *Identity( PhaseTransform *phase );
301 virtual const Type *Value( PhaseTransform *phase ) const;
302 virtual uint ideal_reg() const { return Op_RegP; }
303
304 static Node* decode(PhaseGVN* phase, Node* value);
305 };
306
307 //------------------------------Conv2BNode-------------------------------------
308 // Convert int/pointer to a Boolean. Map zero to zero, all else to 1.
309 class Conv2BNode : public Node {
310 public:
311 Conv2BNode( Node *i ) : Node(0,i) {}
312 virtual int Opcode() const;
313 virtual const Type *bottom_type() const { return TypeInt::BOOL; }
314 virtual Node *Identity( PhaseTransform *phase );
315 virtual const Type *Value( PhaseTransform *phase ) const;
316 virtual uint ideal_reg() const { return Op_RegI; }
317 };
318
319 // The conversions operations are all Alpha sorted. Please keep it that way!
320 //------------------------------ConvD2FNode------------------------------------
321 // Convert double to float
322 class ConvD2FNode : public Node {
323 public:
324 ConvD2FNode( Node *in1 ) : Node(0,in1) {}
325 virtual int Opcode() const;
326 virtual const Type *bottom_type() const { return Type::FLOAT; }
327 virtual const Type *Value( PhaseTransform *phase ) const;
328 virtual Node *Identity( PhaseTransform *phase );
329 virtual uint ideal_reg() const { return Op_RegF; }
330 };
331
332 //------------------------------ConvD2INode------------------------------------
333 // Convert Double to Integer
334 class ConvD2INode : public Node {
335 public:
336 ConvD2INode( Node *in1 ) : Node(0,in1) {}
337 virtual int Opcode() const;
338 virtual const Type *bottom_type() const { return TypeInt::INT; }
339 virtual const Type *Value( PhaseTransform *phase ) const;
340 virtual Node *Identity( PhaseTransform *phase );
341 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
342 virtual uint ideal_reg() const { return Op_RegI; }
343 };
344
345 //------------------------------ConvD2LNode------------------------------------
346 // Convert Double to Long
347 class ConvD2LNode : public Node {
348 public:
349 ConvD2LNode( Node *dbl ) : Node(0,dbl) {}
350 virtual int Opcode() const;
351 virtual const Type *bottom_type() const { return TypeLong::LONG; }
352 virtual const Type *Value( PhaseTransform *phase ) const;
353 virtual Node *Identity( PhaseTransform *phase );
354 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
355 virtual uint ideal_reg() const { return Op_RegL; }
356 };
357
358 //------------------------------ConvF2DNode------------------------------------
359 // Convert Float to a Double.
360 class ConvF2DNode : public Node {
361 public:
362 ConvF2DNode( Node *in1 ) : Node(0,in1) {}
363 virtual int Opcode() const;
364 virtual const Type *bottom_type() const { return Type::DOUBLE; }
365 virtual const Type *Value( PhaseTransform *phase ) const;
366 virtual uint ideal_reg() const { return Op_RegD; }
367 };
368
369 //------------------------------ConvF2INode------------------------------------
370 // Convert float to integer
371 class ConvF2INode : public Node {
372 public:
373 ConvF2INode( Node *in1 ) : Node(0,in1) {}
374 virtual int Opcode() const;
375 virtual const Type *bottom_type() const { return TypeInt::INT; }
376 virtual const Type *Value( PhaseTransform *phase ) const;
377 virtual Node *Identity( PhaseTransform *phase );
378 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
379 virtual uint ideal_reg() const { return Op_RegI; }
380 };
381
382 //------------------------------ConvF2LNode------------------------------------
383 // Convert float to long
384 class ConvF2LNode : public Node {
385 public:
386 ConvF2LNode( Node *in1 ) : Node(0,in1) {}
387 virtual int Opcode() const;
388 virtual const Type *bottom_type() const { return TypeLong::LONG; }
389 virtual const Type *Value( PhaseTransform *phase ) const;
390 virtual Node *Identity( PhaseTransform *phase );
391 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
392 virtual uint ideal_reg() const { return Op_RegL; }
393 };
394
395 //------------------------------ConvI2DNode------------------------------------
396 // Convert Integer to Double
397 class ConvI2DNode : public Node {
398 public:
399 ConvI2DNode( Node *in1 ) : Node(0,in1) {}
400 virtual int Opcode() const;
401 virtual const Type *bottom_type() const { return Type::DOUBLE; }
402 virtual const Type *Value( PhaseTransform *phase ) const;
403 virtual uint ideal_reg() const { return Op_RegD; }
404 };
405
406 //------------------------------ConvI2FNode------------------------------------
407 // Convert Integer to Float
408 class ConvI2FNode : public Node {
409 public:
410 ConvI2FNode( Node *in1 ) : Node(0,in1) {}
411 virtual int Opcode() const;
412 virtual const Type *bottom_type() const { return Type::FLOAT; }
413 virtual const Type *Value( PhaseTransform *phase ) const;
414 virtual Node *Identity( PhaseTransform *phase );
415 virtual uint ideal_reg() const { return Op_RegF; }
416 };
417
418 //------------------------------ConvI2LNode------------------------------------
419 // Convert integer to long
420 class ConvI2LNode : public TypeNode {
421 public:
422 ConvI2LNode(Node *in1, const TypeLong* t = TypeLong::INT)
423 : TypeNode(t, 2)
424 { init_req(1, in1); }
425 virtual int Opcode() const;
426 virtual const Type *Value( PhaseTransform *phase ) const;
427 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
428 virtual uint ideal_reg() const { return Op_RegL; }
429 };
430
431 //------------------------------ConvL2DNode------------------------------------
432 // Convert Long to Double
433 class ConvL2DNode : public Node {
434 public:
435 ConvL2DNode( Node *in1 ) : Node(0,in1) {}
436 virtual int Opcode() const;
437 virtual const Type *bottom_type() const { return Type::DOUBLE; }
438 virtual const Type *Value( PhaseTransform *phase ) const;
439 virtual uint ideal_reg() const { return Op_RegD; }
440 };
441
442 //------------------------------ConvL2FNode------------------------------------
443 // Convert Long to Float
444 class ConvL2FNode : public Node {
445 public:
446 ConvL2FNode( Node *in1 ) : Node(0,in1) {}
447 virtual int Opcode() const;
448 virtual const Type *bottom_type() const { return Type::FLOAT; }
449 virtual const Type *Value( PhaseTransform *phase ) const;
450 virtual uint ideal_reg() const { return Op_RegF; }
451 };
452
453 //------------------------------ConvL2INode------------------------------------
454 // Convert long to integer
455 class ConvL2INode : public Node {
456 public:
457 ConvL2INode( Node *in1 ) : Node(0,in1) {}
458 virtual int Opcode() const;
459 virtual const Type *bottom_type() const { return TypeInt::INT; }
460 virtual Node *Identity( PhaseTransform *phase );
461 virtual const Type *Value( PhaseTransform *phase ) const;
462 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
463 virtual uint ideal_reg() const { return Op_RegI; }
464 };
465
466 //------------------------------CastX2PNode-------------------------------------
467 // convert a machine-pointer-sized integer to a raw pointer
468 class CastX2PNode : public Node {
469 public:
470 CastX2PNode( Node *n ) : Node(NULL, n) {}
471 virtual int Opcode() const;
472 virtual const Type *Value( PhaseTransform *phase ) const;
473 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
474 virtual Node *Identity( PhaseTransform *phase );
475 virtual uint ideal_reg() const { return Op_RegP; }
476 virtual const Type *bottom_type() const { return TypeRawPtr::BOTTOM; }
477 };
478
479 //------------------------------CastP2XNode-------------------------------------
480 // Used in both 32-bit and 64-bit land.
481 // Used for card-marks and unsafe pointer math.
482 class CastP2XNode : public Node {
483 public:
484 CastP2XNode( Node *ctrl, Node *n ) : Node(ctrl, n) {}
485 virtual int Opcode() const;
486 virtual const Type *Value( PhaseTransform *phase ) const;
487 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
488 virtual Node *Identity( PhaseTransform *phase );
489 virtual uint ideal_reg() const { return Op_RegX; }
490 virtual const Type *bottom_type() const { return TypeX_X; }
491 // Return false to keep node from moving away from an associated card mark.
492 virtual bool depends_only_on_test() const { return false; }
493 };
494
495 //------------------------------MemMoveNode------------------------------------
496 // Memory to memory move. Inserted very late, after allocation.
497 class MemMoveNode : public Node {
498 public:
499 MemMoveNode( Node *dst, Node *src ) : Node(0,dst,src) {}
500 virtual int Opcode() const;
501 };
502
503 //------------------------------ThreadLocalNode--------------------------------
504 // Ideal Node which returns the base of ThreadLocalStorage.
505 class ThreadLocalNode : public Node {
506 public:
507 ThreadLocalNode( ) : Node((Node*)Compile::current()->root()) {}
508 virtual int Opcode() const;
509 virtual const Type *bottom_type() const { return TypeRawPtr::BOTTOM;}
510 virtual uint ideal_reg() const { return Op_RegP; }
511 };
512
513 //------------------------------LoadReturnPCNode-------------------------------
514 class LoadReturnPCNode: public Node {
515 public:
516 LoadReturnPCNode(Node *c) : Node(c) { }
517 virtual int Opcode() const;
518 virtual uint ideal_reg() const { return Op_RegP; }
519 };
520
521
522 //-----------------------------RoundFloatNode----------------------------------
523 class RoundFloatNode: public Node {
524 public:
525 RoundFloatNode(Node* c, Node *in1): Node(c, in1) {}
526 virtual int Opcode() const;
527 virtual const Type *bottom_type() const { return Type::FLOAT; }
528 virtual uint ideal_reg() const { return Op_RegF; }
529 virtual Node *Identity( PhaseTransform *phase );
530 virtual const Type *Value( PhaseTransform *phase ) const;
531 };
532
533
534 //-----------------------------RoundDoubleNode---------------------------------
535 class RoundDoubleNode: public Node {
536 public:
537 RoundDoubleNode(Node* c, Node *in1): Node(c, in1) {}
538 virtual int Opcode() const;
539 virtual const Type *bottom_type() const { return Type::DOUBLE; }
540 virtual uint ideal_reg() const { return Op_RegD; }
541 virtual Node *Identity( PhaseTransform *phase );
542 virtual const Type *Value( PhaseTransform *phase ) const;
543 };
544
545 //------------------------------Opaque1Node------------------------------------
546 // A node to prevent unwanted optimizations. Allows constant folding.
547 // Stops value-numbering, Ideal calls or Identity functions.
548 class Opaque1Node : public Node {
549 virtual uint hash() const ; // { return NO_HASH; }
550 virtual uint cmp( const Node &n ) const;
551 public:
552 Opaque1Node( Node *n ) : Node(0,n) {}
553 // Special version for the pre-loop to hold the original loop limit
554 // which is consumed by range check elimination.
555 Opaque1Node( Node *n, Node* orig_limit ) : Node(0,n,orig_limit) {}
556 Node* original_loop_limit() { return req()==3 ? in(2) : NULL; }
557 virtual int Opcode() const;
558 virtual const Type *bottom_type() const { return TypeInt::INT; }
559 virtual Node *Identity( PhaseTransform *phase );
560 };
561
562 //------------------------------Opaque2Node------------------------------------
563 // A node to prevent unwanted optimizations. Allows constant folding. Stops
564 // value-numbering, most Ideal calls or Identity functions. This Node is
565 // specifically designed to prevent the pre-increment value of a loop trip
566 // counter from being live out of the bottom of the loop (hence causing the
567 // pre- and post-increment values both being live and thus requiring an extra
568 // temp register and an extra move). If we "accidentally" optimize through
569 // this kind of a Node, we'll get slightly pessimal, but correct, code. Thus
570 // it's OK to be slightly sloppy on optimizations here.
571 class Opaque2Node : public Node {
572 virtual uint hash() const ; // { return NO_HASH; }
573 virtual uint cmp( const Node &n ) const;
574 public:
575 Opaque2Node( Node *n ) : Node(0,n) {}
576 virtual int Opcode() const;
577 virtual const Type *bottom_type() const { return TypeInt::INT; }
578 };
579
580 //----------------------PartialSubtypeCheckNode--------------------------------
581 // The 2nd slow-half of a subtype check. Scan the subklass's 2ndary superklass
582 // array for an instance of the superklass. Set a hidden internal cache on a
583 // hit (cache is checked with exposed code in gen_subtype_check()). Return
584 // not zero for a miss or zero for a hit.
585 class PartialSubtypeCheckNode : public Node {
586 public:
587 PartialSubtypeCheckNode(Node* c, Node* sub, Node* super) : Node(c,sub,super) {}
588 virtual int Opcode() const;
589 virtual const Type *bottom_type() const { return TypeRawPtr::BOTTOM; }
590 virtual uint ideal_reg() const { return Op_RegP; }
591 };
592
593 //
594 class MoveI2FNode : public Node {
595 public:
596 MoveI2FNode( Node *value ) : Node(0,value) {}
597 virtual int Opcode() const;
598 virtual const Type *bottom_type() const { return Type::FLOAT; }
599 virtual uint ideal_reg() const { return Op_RegF; }
600 virtual const Type* Value( PhaseTransform *phase ) const;
601 };
602
603 class MoveL2DNode : public Node {
604 public:
605 MoveL2DNode( Node *value ) : Node(0,value) {}
606 virtual int Opcode() const;
607 virtual const Type *bottom_type() const { return Type::DOUBLE; }
608 virtual uint ideal_reg() const { return Op_RegD; }
609 virtual const Type* Value( PhaseTransform *phase ) const;
610 };
611
612 class MoveF2INode : public Node {
613 public:
614 MoveF2INode( Node *value ) : Node(0,value) {}
615 virtual int Opcode() const;
616 virtual const Type *bottom_type() const { return TypeInt::INT; }
617 virtual uint ideal_reg() const { return Op_RegI; }
618 virtual const Type* Value( PhaseTransform *phase ) const;
619 };
620
621 class MoveD2LNode : public Node {
622 public:
623 MoveD2LNode( Node *value ) : Node(0,value) {}
624 virtual int Opcode() const;
625 virtual const Type *bottom_type() const { return TypeLong::LONG; }
626 virtual uint ideal_reg() const { return Op_RegL; }
627 virtual const Type* Value( PhaseTransform *phase ) const;
628 };