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
75
76 //------------------------------ConNNode--------------------------------------
77 // Simple narrow oop constants
78 class ConNNode : public ConNode {
79 public:
80 ConNNode( const TypeNarrowOop *t ) : ConNode(t) {}
81 virtual int Opcode() const;
82 };
83
84
85 //------------------------------ConLNode---------------------------------------
86 // Simple long constants
87 class ConLNode : public ConNode {
88 public:
89 ConLNode( const TypeLong *t ) : ConNode(t) {}
90 virtual int Opcode() const;
91
92 // Factory method:
93 static ConLNode* make( Compile *C ,jlong con ) {
94 return new (C, 1) ConLNode( TypeLong::make(con) );
95 }
96
97 };
98
99 //------------------------------ConFNode---------------------------------------
100 // Simple float constants
101 class ConFNode : public ConNode {
102 public:
103 ConFNode( const TypeF *t ) : ConNode(t) {}
104 virtual int Opcode() const;
105
106 // Factory method:
107 static ConFNode* make( Compile *C, float con ) {
108 return new (C, 1) ConFNode( TypeF::make(con) );
109 }
110
111 };
112
113 //------------------------------ConDNode---------------------------------------
114 // Simple double constants
115 class ConDNode : public ConNode {
116 public:
117 ConDNode( const TypeD *t ) : ConNode(t) {}
118 virtual int Opcode() const;
119
120 // Factory method:
121 static ConDNode* make( Compile *C, double con ) {
122 return new (C, 1) ConDNode( TypeD::make(con) );
123 }
124
125 };
126
127 //------------------------------BinaryNode-------------------------------------
128 // Place holder for the 2 conditional inputs to a CMove. CMove needs 4
129 // inputs: the Bool (for the lt/gt/eq/ne bits), the flags (result of some
130 // compare), and the 2 values to select between. The Matcher requires a
131 // binary tree so we break it down like this:
132 // (CMove (Binary bol cmp) (Binary src1 src2))
133 class BinaryNode : public Node {
134 public:
135 BinaryNode( Node *n1, Node *n2 ) : Node(0,n1,n2) { }
136 virtual int Opcode() const;
137 virtual uint ideal_reg() const { return 0; }
138 };
139
140 //------------------------------CMoveNode--------------------------------------
141 // Conditional move
142 class CMoveNode : public TypeNode {
143 public:
144 enum { Control, // When is it safe to do this cmove?
145 Condition, // Condition controlling the cmove
146 IfFalse, // Value if condition is false
147 IfTrue }; // Value if condition is true
148 CMoveNode( Node *bol, Node *left, Node *right, const Type *t ) : TypeNode(t,4)
149 {
150 init_class_id(Class_CMove);
151 // all inputs are nullified in Node::Node(int)
152 // init_req(Control,NULL);
153 init_req(Condition,bol);
154 init_req(IfFalse,left);
155 init_req(IfTrue,right);
156 }
157 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
158 virtual const Type *Value( PhaseTransform *phase ) const;
159 virtual Node *Identity( PhaseTransform *phase );
160 static CMoveNode *make( Compile *C, Node *c, Node *bol, Node *left, Node *right, const Type *t );
161 // Helper function to spot cmove graph shapes
162 static Node *is_cmove_id( PhaseTransform *phase, Node *cmp, Node *t, Node *f, BoolNode *b );
163 };
164
165 //------------------------------CMoveDNode-------------------------------------
166 class CMoveDNode : public CMoveNode {
167 public:
168 CMoveDNode( Node *bol, Node *left, Node *right, const Type* t) : CMoveNode(bol,left,right,t){}
169 virtual int Opcode() const;
170 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
171 };
172
173 //------------------------------CMoveFNode-------------------------------------
174 class CMoveFNode : public CMoveNode {
175 public:
176 CMoveFNode( Node *bol, Node *left, Node *right, const Type* t ) : CMoveNode(bol,left,right,t) {}
177 virtual int Opcode() const;
178 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
179 };
180
181 //------------------------------CMoveINode-------------------------------------
182 class CMoveINode : public CMoveNode {
183 public:
184 CMoveINode( Node *bol, Node *left, Node *right, const TypeInt *ti ) : CMoveNode(bol,left,right,ti){}
185 virtual int Opcode() const;
186 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
187 };
188
189 //------------------------------CMoveLNode-------------------------------------
190 class CMoveLNode : public CMoveNode {
191 public:
192 CMoveLNode(Node *bol, Node *left, Node *right, const TypeLong *tl ) : CMoveNode(bol,left,right,tl){}
193 virtual int Opcode() const;
194 };
195
196 //------------------------------CMovePNode-------------------------------------
197 class CMovePNode : public CMoveNode {
198 public:
199 CMovePNode( Node *c, Node *bol, Node *left, Node *right, const TypePtr* t ) : CMoveNode(bol,left,right,t) { init_req(Control,c); }
200 virtual int Opcode() const;
201 };
202
203 //------------------------------CMoveNNode-------------------------------------
204 class CMoveNNode : public CMoveNode {
205 public:
206 CMoveNNode( Node *c, Node *bol, Node *left, Node *right, const Type* t ) : CMoveNode(bol,left,right,t) { init_req(Control,c); }
207 virtual int Opcode() const;
208 };
209
210 //------------------------------ConstraintCastNode-----------------------------
211 // cast to a different range
212 class ConstraintCastNode: public TypeNode {
213 public:
214 ConstraintCastNode (Node *n, const Type *t ): TypeNode(t,2) {
215 init_class_id(Class_ConstraintCast);
216 init_req(1, n);
217 }
218 virtual Node *Identity( PhaseTransform *phase );
219 virtual const Type *Value( PhaseTransform *phase ) const;
220 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
221 virtual int Opcode() const;
222 virtual uint ideal_reg() const = 0;
223 virtual Node *Ideal_DU_postCCP( PhaseCCP * );
224 };
225
226 //------------------------------CastIINode-------------------------------------
227 // cast integer to integer (different range)
228 class CastIINode: public ConstraintCastNode {
229 public:
230 CastIINode (Node *n, const Type *t ): ConstraintCastNode(n,t) {}
231 virtual int Opcode() const;
232 virtual uint ideal_reg() const { return Op_RegI; }
233 };
234
235 //------------------------------CastPPNode-------------------------------------
236 // cast pointer to pointer (different type)
237 class CastPPNode: public ConstraintCastNode {
238 public:
239 CastPPNode (Node *n, const Type *t ): ConstraintCastNode(n, t) {}
240 virtual int Opcode() const;
241 virtual uint ideal_reg() const { return Op_RegP; }
242 virtual Node *Ideal_DU_postCCP( PhaseCCP * );
243 };
244
245 //------------------------------CheckCastPPNode--------------------------------
246 // for _checkcast, cast pointer to pointer (different type), without JOIN,
247 class CheckCastPPNode: public TypeNode {
248 public:
249 CheckCastPPNode( Node *c, Node *n, const Type *t ) : TypeNode(t,2) {
250 init_class_id(Class_CheckCastPP);
251 init_req(0, c);
252 init_req(1, n);
253 }
254
255 virtual Node *Identity( PhaseTransform *phase );
256 virtual const Type *Value( PhaseTransform *phase ) const;
257 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
258 virtual int Opcode() const;
259 virtual uint ideal_reg() const { return Op_RegP; }
260 // No longer remove CheckCast after CCP as it gives me a place to hang
261 // the proper address type - which is required to compute anti-deps.
262 //virtual Node *Ideal_DU_postCCP( PhaseCCP * );
263 };
264
265
266 //------------------------------EncodeP--------------------------------
267 // Encodes an oop pointers into its compressed form
268 // Takes an extra argument which is the real heap base as a long which
269 // may be useful for code generation in the backend.
270 class EncodePNode : public TypeNode {
271 public:
272 EncodePNode(Node* value, const Type* type):
273 TypeNode(type, 2) {
274 init_class_id(Class_EncodeP);
275 init_req(0, NULL);
276 init_req(1, value);
277 }
278 virtual int Opcode() const;
279 virtual Node *Identity( PhaseTransform *phase );
280 virtual const Type *Value( PhaseTransform *phase ) const;
281 virtual uint ideal_reg() const { return Op_RegN; }
282
283 static Node* encode(PhaseTransform* phase, Node* value);
284 virtual Node *Ideal_DU_postCCP( PhaseCCP *ccp );
285 };
286
287 //------------------------------DecodeN--------------------------------
288 // Converts a narrow oop into a real oop ptr.
289 // Takes an extra argument which is the real heap base as a long which
290 // may be useful for code generation in the backend.
291 class DecodeNNode : public TypeNode {
292 public:
293 DecodeNNode(Node* value, const Type* type):
294 TypeNode(type, 2) {
295 init_class_id(Class_DecodeN);
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(PhaseTransform* 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( Compile* C, Node *n ) : Node(0,n) {
553 // Put it on the Macro nodes list to removed during macro nodes expansion.
554 init_flags(Flag_is_macro);
555 C->add_macro_node(this);
556 }
557 // Special version for the pre-loop to hold the original loop limit
558 // which is consumed by range check elimination.
559 Opaque1Node( Compile* C, Node *n, Node* orig_limit ) : Node(0,n,orig_limit) {
560 // Put it on the Macro nodes list to removed during macro nodes expansion.
561 init_flags(Flag_is_macro);
562 C->add_macro_node(this);
563 }
564 Node* original_loop_limit() { return req()==3 ? in(2) : NULL; }
565 virtual int Opcode() const;
566 virtual const Type *bottom_type() const { return TypeInt::INT; }
567 virtual Node *Identity( PhaseTransform *phase );
568 };
569
570 //------------------------------Opaque2Node------------------------------------
571 // A node to prevent unwanted optimizations. Allows constant folding. Stops
572 // value-numbering, most Ideal calls or Identity functions. This Node is
573 // specifically designed to prevent the pre-increment value of a loop trip
574 // counter from being live out of the bottom of the loop (hence causing the
575 // pre- and post-increment values both being live and thus requiring an extra
576 // temp register and an extra move). If we "accidentally" optimize through
577 // this kind of a Node, we'll get slightly pessimal, but correct, code. Thus
578 // it's OK to be slightly sloppy on optimizations here.
579 class Opaque2Node : public Node {
580 virtual uint hash() const ; // { return NO_HASH; }
581 virtual uint cmp( const Node &n ) const;
582 public:
583 Opaque2Node( Compile* C, Node *n ) : Node(0,n) {
584 // Put it on the Macro nodes list to removed during macro nodes expansion.
585 init_flags(Flag_is_macro);
586 C->add_macro_node(this);
587 }
588 virtual int Opcode() const;
589 virtual const Type *bottom_type() const { return TypeInt::INT; }
590 };
591
592 //----------------------PartialSubtypeCheckNode--------------------------------
593 // The 2nd slow-half of a subtype check. Scan the subklass's 2ndary superklass
594 // array for an instance of the superklass. Set a hidden internal cache on a
595 // hit (cache is checked with exposed code in gen_subtype_check()). Return
596 // not zero for a miss or zero for a hit.
597 class PartialSubtypeCheckNode : public Node {
598 public:
599 PartialSubtypeCheckNode(Node* c, Node* sub, Node* super) : Node(c,sub,super) {}
600 virtual int Opcode() const;
601 virtual const Type *bottom_type() const { return TypeRawPtr::BOTTOM; }
602 virtual uint ideal_reg() const { return Op_RegP; }
603 };
604
605 //
606 class MoveI2FNode : public Node {
607 public:
608 MoveI2FNode( Node *value ) : Node(0,value) {}
609 virtual int Opcode() const;
610 virtual const Type *bottom_type() const { return Type::FLOAT; }
611 virtual uint ideal_reg() const { return Op_RegF; }
612 virtual const Type* Value( PhaseTransform *phase ) const;
613 };
614
615 class MoveL2DNode : public Node {
616 public:
617 MoveL2DNode( Node *value ) : Node(0,value) {}
618 virtual int Opcode() const;
619 virtual const Type *bottom_type() const { return Type::DOUBLE; }
620 virtual uint ideal_reg() const { return Op_RegD; }
621 virtual const Type* Value( PhaseTransform *phase ) const;
622 };
623
624 class MoveF2INode : public Node {
625 public:
626 MoveF2INode( Node *value ) : Node(0,value) {}
627 virtual int Opcode() const;
628 virtual const Type *bottom_type() const { return TypeInt::INT; }
629 virtual uint ideal_reg() const { return Op_RegI; }
630 virtual const Type* Value( PhaseTransform *phase ) const;
631 };
632
633 class MoveD2LNode : public Node {
634 public:
635 MoveD2LNode( Node *value ) : Node(0,value) {}
636 virtual int Opcode() const;
637 virtual const Type *bottom_type() const { return TypeLong::LONG; }
638 virtual uint ideal_reg() const { return Op_RegL; }
639 virtual const Type* Value( PhaseTransform *phase ) const;
640 };