1 /*
2 * Copyright (c) 1997, 2025, Oracle and/or its affiliates. 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.
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23 */
24
25 #ifndef SHARE_OPTO_TYPE_HPP
26 #define SHARE_OPTO_TYPE_HPP
27
28 #include "opto/adlcVMDeps.hpp"
29 #include "runtime/handles.hpp"
30
31 // Portions of code courtesy of Clifford Click
32
33 // Optimization - Graph Style
34
35
36 // This class defines a Type lattice. The lattice is used in the constant
37 // propagation algorithms, and for some type-checking of the iloc code.
38 // Basic types include RSD's (lower bound, upper bound, stride for integers),
39 // float & double precision constants, sets of data-labels and code-labels.
40 // The complete lattice is described below. Subtypes have no relationship to
41 // up or down in the lattice; that is entirely determined by the behavior of
42 // the MEET/JOIN functions.
43
44 class Dict;
45 class Type;
46 class TypeD;
47 class TypeF;
48 class TypeH;
49 class TypeInteger;
50 class TypeInt;
51 class TypeLong;
52 class TypeNarrowPtr;
53 class TypeNarrowOop;
54 class TypeNarrowKlass;
55 class TypeAry;
56 class TypeTuple;
57 class TypeVect;
58 class TypeVectA;
59 class TypeVectS;
60 class TypeVectD;
61 class TypeVectX;
62 class TypeVectY;
63 class TypeVectZ;
64 class TypeVectMask;
65 class TypePtr;
66 class TypeRawPtr;
67 class TypeOopPtr;
68 class TypeInstPtr;
69 class TypeAryPtr;
70 class TypeKlassPtr;
71 class TypeInstKlassPtr;
72 class TypeAryKlassPtr;
73 class TypeMetadataPtr;
74 class VerifyMeet;
75
76 //------------------------------Type-------------------------------------------
77 // Basic Type object, represents a set of primitive Values.
78 // Types are hash-cons'd into a private class dictionary, so only one of each
79 // different kind of Type exists. Types are never modified after creation, so
80 // all their interesting fields are constant.
81 class Type {
82
83 public:
84 enum TYPES {
85 Bad=0, // Type check
86 Control, // Control of code (not in lattice)
87 Top, // Top of the lattice
88 Int, // Integer range (lo-hi)
89 Long, // Long integer range (lo-hi)
90 Half, // Placeholder half of doubleword
91 NarrowOop, // Compressed oop pointer
92 NarrowKlass, // Compressed klass pointer
93
94 Tuple, // Method signature or object layout
95 Array, // Array types
96
97 Interfaces, // Set of implemented interfaces for oop types
98
99 VectorMask, // Vector predicate/mask type
100 VectorA, // (Scalable) Vector types for vector length agnostic
101 VectorS, // 32bit Vector types
102 VectorD, // 64bit Vector types
103 VectorX, // 128bit Vector types
104 VectorY, // 256bit Vector types
105 VectorZ, // 512bit Vector types
106
107 AnyPtr, // Any old raw, klass, inst, or array pointer
108 RawPtr, // Raw (non-oop) pointers
109 OopPtr, // Any and all Java heap entities
110 InstPtr, // Instance pointers (non-array objects)
111 AryPtr, // Array pointers
112 // (Ptr order matters: See is_ptr, isa_ptr, is_oopptr, isa_oopptr.)
113
114 MetadataPtr, // Generic metadata
115 KlassPtr, // Klass pointers
116 InstKlassPtr,
117 AryKlassPtr,
118
119 Function, // Function signature
120 Abio, // Abstract I/O
121 Return_Address, // Subroutine return address
122 Memory, // Abstract store
123 HalfFloatTop, // No float value
124 HalfFloatCon, // Floating point constant
125 HalfFloatBot, // Any float value
126 FloatTop, // No float value
127 FloatCon, // Floating point constant
128 FloatBot, // Any float value
129 DoubleTop, // No double value
130 DoubleCon, // Double precision constant
131 DoubleBot, // Any double value
132 Bottom, // Bottom of lattice
133 lastype // Bogus ending type (not in lattice)
134 };
135
136 // Signal values for offsets from a base pointer
137 enum OFFSET_SIGNALS {
138 OffsetTop = -2000000000, // undefined offset
139 OffsetBot = -2000000001 // any possible offset
140 };
141
142 // Min and max WIDEN values.
143 enum WIDEN {
144 WidenMin = 0,
145 WidenMax = 3
146 };
147
148 private:
149 typedef struct {
150 TYPES dual_type;
151 BasicType basic_type;
152 const char* msg;
153 bool isa_oop;
154 uint ideal_reg;
155 relocInfo::relocType reloc;
156 } TypeInfo;
157
158 // Dictionary of types shared among compilations.
159 static Dict* _shared_type_dict;
160 static const TypeInfo _type_info[];
161
162 static int uhash( const Type *const t );
163 // Structural equality check. Assumes that equals() has already compared
164 // the _base types and thus knows it can cast 't' appropriately.
165 virtual bool eq( const Type *t ) const;
166
167 // Top-level hash-table of types
168 static Dict *type_dict() {
169 return Compile::current()->type_dict();
170 }
171
172 // DUAL operation: reflect around lattice centerline. Used instead of
173 // join to ensure my lattice is symmetric up and down. Dual is computed
174 // lazily, on demand, and cached in _dual.
175 const Type *_dual; // Cached dual value
176
177
178 const Type *meet_helper(const Type *t, bool include_speculative) const;
179 void check_symmetrical(const Type* t, const Type* mt, const VerifyMeet& verify) const NOT_DEBUG_RETURN;
180
181 protected:
182 // Each class of type is also identified by its base.
183 const TYPES _base; // Enum of Types type
184
185 Type( TYPES t ) : _dual(nullptr), _base(t) {} // Simple types
186 // ~Type(); // Use fast deallocation
187 const Type *hashcons(); // Hash-cons the type
188 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
189 const Type *join_helper(const Type *t, bool include_speculative) const {
190 assert_type_verify_empty();
191 return dual()->meet_helper(t->dual(), include_speculative)->dual();
192 }
193
194 void assert_type_verify_empty() const NOT_DEBUG_RETURN;
195
196 public:
197
198 inline void* operator new( size_t x ) throw() {
199 Compile* compile = Compile::current();
200 compile->set_type_last_size(x);
201 return compile->type_arena()->AmallocWords(x);
202 }
203 inline void operator delete( void* ptr ) {
204 Compile* compile = Compile::current();
205 compile->type_arena()->Afree(ptr,compile->type_last_size());
206 }
207
208 // Initialize the type system for a particular compilation.
209 static void Initialize(Compile* compile);
210
211 // Initialize the types shared by all compilations.
212 static void Initialize_shared(Compile* compile);
213
214 TYPES base() const {
215 assert(_base > Bad && _base < lastype, "sanity");
216 return _base;
217 }
218
219 // Create a new hash-consd type
220 static const Type *make(enum TYPES);
221 // Test for equivalence of types
222 static bool equals(const Type* t1, const Type* t2);
223 // Test for higher or equal in lattice
224 // Variant that drops the speculative part of the types
225 bool higher_equal(const Type* t) const {
226 return equals(meet(t), t->remove_speculative());
227 }
228 // Variant that keeps the speculative part of the types
229 bool higher_equal_speculative(const Type* t) const {
230 return equals(meet_speculative(t), t);
231 }
232
233 // MEET operation; lower in lattice.
234 // Variant that drops the speculative part of the types
235 const Type *meet(const Type *t) const {
236 return meet_helper(t, false);
237 }
238 // Variant that keeps the speculative part of the types
239 const Type *meet_speculative(const Type *t) const {
240 return meet_helper(t, true)->cleanup_speculative();
241 }
242 // WIDEN: 'widens' for Ints and other range types
243 virtual const Type *widen( const Type *old, const Type* limit ) const { return this; }
244 // NARROW: complement for widen, used by pessimistic phases
245 virtual const Type *narrow( const Type *old ) const { return this; }
246
247 // DUAL operation: reflect around lattice centerline. Used instead of
248 // join to ensure my lattice is symmetric up and down.
249 const Type *dual() const { return _dual; }
250
251 // Compute meet dependent on base type
252 virtual const Type *xmeet( const Type *t ) const;
253 virtual const Type *xdual() const; // Compute dual right now.
254
255 // JOIN operation; higher in lattice. Done by finding the dual of the
256 // meet of the dual of the 2 inputs.
257 // Variant that drops the speculative part of the types
258 const Type *join(const Type *t) const {
259 return join_helper(t, false);
260 }
261 // Variant that keeps the speculative part of the types
262 const Type *join_speculative(const Type *t) const {
263 return join_helper(t, true)->cleanup_speculative();
264 }
265
266 // Modified version of JOIN adapted to the needs Node::Value.
267 // Normalizes all empty values to TOP. Does not kill _widen bits.
268 // Variant that drops the speculative part of the types
269 const Type *filter(const Type *kills) const {
270 return filter_helper(kills, false);
271 }
272 // Variant that keeps the speculative part of the types
273 const Type *filter_speculative(const Type *kills) const {
274 return filter_helper(kills, true)->cleanup_speculative();
275 }
276
277 // Returns true if this pointer points at memory which contains a
278 // compressed oop references.
279 bool is_ptr_to_narrowoop() const;
280 bool is_ptr_to_narrowklass() const;
281
282 // Convenience access
283 short geth() const;
284 virtual float getf() const;
285 double getd() const;
286
287 const TypeInt *is_int() const;
288 const TypeInt *isa_int() const; // Returns null if not an Int
289 const TypeInteger* is_integer(BasicType bt) const;
290 const TypeInteger* isa_integer(BasicType bt) const;
291 const TypeLong *is_long() const;
292 const TypeLong *isa_long() const; // Returns null if not a Long
293 const TypeD *isa_double() const; // Returns null if not a Double{Top,Con,Bot}
294 const TypeD *is_double_constant() const; // Asserts it is a DoubleCon
295 const TypeD *isa_double_constant() const; // Returns null if not a DoubleCon
296 const TypeH *isa_half_float() const; // Returns null if not a Float{Top,Con,Bot}
297 const TypeH *is_half_float_constant() const; // Asserts it is a FloatCon
298 const TypeH *isa_half_float_constant() const; // Returns null if not a FloatCon
299 const TypeF *isa_float() const; // Returns null if not a Float{Top,Con,Bot}
300 const TypeF *is_float_constant() const; // Asserts it is a FloatCon
301 const TypeF *isa_float_constant() const; // Returns null if not a FloatCon
302 const TypeTuple *is_tuple() const; // Collection of fields, NOT a pointer
303 const TypeAry *is_ary() const; // Array, NOT array pointer
304 const TypeAry *isa_ary() const; // Returns null of not ary
305 const TypeVect *is_vect() const; // Vector
306 const TypeVect *isa_vect() const; // Returns null if not a Vector
307 const TypeVectMask *is_vectmask() const; // Predicate/Mask Vector
308 const TypeVectMask *isa_vectmask() const; // Returns null if not a Vector Predicate/Mask
309 const TypePtr *is_ptr() const; // Asserts it is a ptr type
310 const TypePtr *isa_ptr() const; // Returns null if not ptr type
311 const TypeRawPtr *isa_rawptr() const; // NOT Java oop
312 const TypeRawPtr *is_rawptr() const; // Asserts is rawptr
313 const TypeNarrowOop *is_narrowoop() const; // Java-style GC'd pointer
314 const TypeNarrowOop *isa_narrowoop() const; // Returns null if not oop ptr type
315 const TypeNarrowKlass *is_narrowklass() const; // compressed klass pointer
316 const TypeNarrowKlass *isa_narrowklass() const;// Returns null if not oop ptr type
317 const TypeOopPtr *isa_oopptr() const; // Returns null if not oop ptr type
318 const TypeOopPtr *is_oopptr() const; // Java-style GC'd pointer
319 const TypeInstPtr *isa_instptr() const; // Returns null if not InstPtr
320 const TypeInstPtr *is_instptr() const; // Instance
321 const TypeAryPtr *isa_aryptr() const; // Returns null if not AryPtr
322 const TypeAryPtr *is_aryptr() const; // Array oop
323
324 template <typename TypeClass>
325 const TypeClass* cast() const;
326
327 const TypeMetadataPtr *isa_metadataptr() const; // Returns null if not oop ptr type
328 const TypeMetadataPtr *is_metadataptr() const; // Java-style GC'd pointer
329 const TypeKlassPtr *isa_klassptr() const; // Returns null if not KlassPtr
330 const TypeKlassPtr *is_klassptr() const; // assert if not KlassPtr
331 const TypeInstKlassPtr *isa_instklassptr() const; // Returns null if not IntKlassPtr
332 const TypeInstKlassPtr *is_instklassptr() const; // assert if not IntKlassPtr
333 const TypeAryKlassPtr *isa_aryklassptr() const; // Returns null if not AryKlassPtr
334 const TypeAryKlassPtr *is_aryklassptr() const; // assert if not AryKlassPtr
335
336 virtual bool is_finite() const; // Has a finite value
337 virtual bool is_nan() const; // Is not a number (NaN)
338
339 // Returns this ptr type or the equivalent ptr type for this compressed pointer.
340 const TypePtr* make_ptr() const;
341
342 // Returns this oopptr type or the equivalent oopptr type for this compressed pointer.
343 // Asserts if the underlying type is not an oopptr or narrowoop.
344 const TypeOopPtr* make_oopptr() const;
345
346 // Returns this compressed pointer or the equivalent compressed version
347 // of this pointer type.
348 const TypeNarrowOop* make_narrowoop() const;
349
350 // Returns this compressed klass pointer or the equivalent
351 // compressed version of this pointer type.
352 const TypeNarrowKlass* make_narrowklass() const;
353
354 // Special test for register pressure heuristic
355 bool is_floatingpoint() const; // True if Float or Double base type
356
357 // Do you have memory, directly or through a tuple?
358 bool has_memory( ) const;
359
360 // TRUE if type is a singleton
361 virtual bool singleton(void) const;
362
363 // TRUE if type is above the lattice centerline, and is therefore vacuous
364 virtual bool empty(void) const;
365
366 // Return a hash for this type. The hash function is public so ConNode
367 // (constants) can hash on their constant, which is represented by a Type.
368 virtual uint hash() const;
369
370 // Map ideal registers (machine types) to ideal types
371 static const Type *mreg2type[];
372
373 // Printing, statistics
374 #ifndef PRODUCT
375 void dump_on(outputStream *st) const;
376 void dump() const {
377 dump_on(tty);
378 }
379 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
380 static void dump_stats();
381 // Groups of types, for debugging and visualization only.
382 enum class Category {
383 Data,
384 Memory,
385 Mixed, // Tuples with types of different categories.
386 Control,
387 Other, // {Type::Top, Type::Abio, Type::Bottom}.
388 Undef // {Type::Bad, Type::lastype}, for completeness.
389 };
390 // Return the category of this type.
391 Category category() const;
392 // Check recursively in tuples.
393 bool has_category(Category cat) const;
394
395 static const char* str(const Type* t);
396 #endif // !PRODUCT
397 void typerr(const Type *t) const; // Mixing types error
398
399 // Create basic type
400 static const Type* get_const_basic_type(BasicType type) {
401 assert((uint)type <= T_CONFLICT && _const_basic_type[type] != nullptr, "bad type");
402 return _const_basic_type[type];
403 }
404
405 // For two instance arrays of same dimension, return the base element types.
406 // Otherwise or if the arrays have different dimensions, return null.
407 static void get_arrays_base_elements(const Type *a1, const Type *a2,
408 const TypeInstPtr **e1, const TypeInstPtr **e2);
409
410 // Mapping to the array element's basic type.
411 BasicType array_element_basic_type() const;
412
413 enum InterfaceHandling {
414 trust_interfaces,
415 ignore_interfaces
416 };
417 // Create standard type for a ciType:
418 static const Type* get_const_type(ciType* type, InterfaceHandling interface_handling = ignore_interfaces);
419
420 // Create standard zero value:
421 static const Type* get_zero_type(BasicType type) {
422 assert((uint)type <= T_CONFLICT && _zero_type[type] != nullptr, "bad type");
423 return _zero_type[type];
424 }
425
426 // Report if this is a zero value (not top).
427 bool is_zero_type() const {
428 BasicType type = basic_type();
429 if (type == T_VOID || type >= T_CONFLICT)
430 return false;
431 else
432 return (this == _zero_type[type]);
433 }
434
435 // Convenience common pre-built types.
436 static const Type *ABIO;
437 static const Type *BOTTOM;
438 static const Type *CONTROL;
439 static const Type *DOUBLE;
440 static const Type *FLOAT;
441 static const Type *HALF_FLOAT;
442 static const Type *HALF;
443 static const Type *MEMORY;
444 static const Type *MULTI;
445 static const Type *RETURN_ADDRESS;
446 static const Type *TOP;
447
448 // Mapping from compiler type to VM BasicType
449 BasicType basic_type() const { return _type_info[_base].basic_type; }
450 uint ideal_reg() const { return _type_info[_base].ideal_reg; }
451 const char* msg() const { return _type_info[_base].msg; }
452 bool isa_oop_ptr() const { return _type_info[_base].isa_oop; }
453 relocInfo::relocType reloc() const { return _type_info[_base].reloc; }
454
455 // Mapping from CI type system to compiler type:
456 static const Type* get_typeflow_type(ciType* type);
457
458 static const Type* make_from_constant(ciConstant constant,
459 bool require_constant = false,
460 int stable_dimension = 0,
461 bool is_narrow = false,
462 bool is_autobox_cache = false);
463
464 static const Type* make_constant_from_field(ciInstance* holder,
465 int off,
466 bool is_unsigned_load,
467 BasicType loadbt);
468
469 static const Type* make_constant_from_field(ciField* field,
470 ciInstance* holder,
471 BasicType loadbt,
472 bool is_unsigned_load);
473
474 static const Type* make_constant_from_array_element(ciArray* array,
475 int off,
476 int stable_dimension,
477 BasicType loadbt,
478 bool is_unsigned_load);
479
480 // Speculative type helper methods. See TypePtr.
481 virtual const TypePtr* speculative() const { return nullptr; }
482 virtual ciKlass* speculative_type() const { return nullptr; }
483 virtual ciKlass* speculative_type_not_null() const { return nullptr; }
484 virtual bool speculative_maybe_null() const { return true; }
485 virtual bool speculative_always_null() const { return true; }
486 virtual const Type* remove_speculative() const { return this; }
487 virtual const Type* cleanup_speculative() const { return this; }
488 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const { return exact_kls != nullptr; }
489 virtual bool would_improve_ptr(ProfilePtrKind ptr_kind) const { return ptr_kind == ProfileAlwaysNull || ptr_kind == ProfileNeverNull; }
490 const Type* maybe_remove_speculative(bool include_speculative) const;
491
492 virtual bool maybe_null() const { return true; }
493 virtual bool is_known_instance() const { return false; }
494
495 private:
496 // support arrays
497 static const Type* _zero_type[T_CONFLICT+1];
498 static const Type* _const_basic_type[T_CONFLICT+1];
499 };
500
501 //------------------------------TypeF------------------------------------------
502 // Class of Float-Constant Types.
503 class TypeF : public Type {
504 TypeF( float f ) : Type(FloatCon), _f(f) {};
505 public:
506 virtual bool eq( const Type *t ) const;
507 virtual uint hash() const; // Type specific hashing
508 virtual bool singleton(void) const; // TRUE if type is a singleton
509 virtual bool empty(void) const; // TRUE if type is vacuous
510 public:
511 const float _f; // Float constant
512
513 static const TypeF *make(float f);
514
515 virtual bool is_finite() const; // Has a finite value
516 virtual bool is_nan() const; // Is not a number (NaN)
517
518 virtual const Type *xmeet( const Type *t ) const;
519 virtual const Type *xdual() const; // Compute dual right now.
520 // Convenience common pre-built types.
521 static const TypeF *MAX;
522 static const TypeF *MIN;
523 static const TypeF *ZERO; // positive zero only
524 static const TypeF *ONE;
525 static const TypeF *POS_INF;
526 static const TypeF *NEG_INF;
527 #ifndef PRODUCT
528 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
529 #endif
530 };
531
532 // Class of Half Float-Constant Types.
533 class TypeH : public Type {
534 TypeH(short f) : Type(HalfFloatCon), _f(f) {};
535 public:
536 virtual bool eq(const Type* t) const;
537 virtual uint hash() const; // Type specific hashing
538 virtual bool singleton(void) const; // TRUE if type is a singleton
539 virtual bool empty(void) const; // TRUE if type is vacuous
540 public:
541 const short _f; // Half Float constant
542
543 static const TypeH* make(float f);
544 static const TypeH* make(short f);
545
546 virtual bool is_finite() const; // Has a finite value
547 virtual bool is_nan() const; // Is not a number (NaN)
548
549 virtual float getf() const;
550 virtual const Type* xmeet(const Type* t) const;
551 virtual const Type* xdual() const; // Compute dual right now.
552 // Convenience common pre-built types.
553 static const TypeH* MAX;
554 static const TypeH* MIN;
555 static const TypeH* ZERO; // positive zero only
556 static const TypeH* ONE;
557 static const TypeH* POS_INF;
558 static const TypeH* NEG_INF;
559 #ifndef PRODUCT
560 virtual void dump2(Dict &d, uint depth, outputStream* st) const;
561 #endif
562 };
563
564 //------------------------------TypeD------------------------------------------
565 // Class of Double-Constant Types.
566 class TypeD : public Type {
567 TypeD( double d ) : Type(DoubleCon), _d(d) {};
568 public:
569 virtual bool eq( const Type *t ) const;
570 virtual uint hash() const; // Type specific hashing
571 virtual bool singleton(void) const; // TRUE if type is a singleton
572 virtual bool empty(void) const; // TRUE if type is vacuous
573 public:
574 const double _d; // Double constant
575
576 static const TypeD *make(double d);
577
578 virtual bool is_finite() const; // Has a finite value
579 virtual bool is_nan() const; // Is not a number (NaN)
580
581 virtual const Type *xmeet( const Type *t ) const;
582 virtual const Type *xdual() const; // Compute dual right now.
583 // Convenience common pre-built types.
584 static const TypeD *MAX;
585 static const TypeD *MIN;
586 static const TypeD *ZERO; // positive zero only
587 static const TypeD *ONE;
588 static const TypeD *POS_INF;
589 static const TypeD *NEG_INF;
590 #ifndef PRODUCT
591 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
592 #endif
593 };
594
595 class TypeInteger : public Type {
596 protected:
597 TypeInteger(TYPES t, int w) : Type(t), _widen(w) {}
598
599 public:
600 const short _widen; // Limit on times we widen this sucker
601
602 virtual jlong hi_as_long() const = 0;
603 virtual jlong lo_as_long() const = 0;
604 jlong get_con_as_long(BasicType bt) const;
605 bool is_con() const { return lo_as_long() == hi_as_long(); }
606 virtual short widen_limit() const { return _widen; }
607
608 static const TypeInteger* make(jlong lo, jlong hi, int w, BasicType bt);
609 static const TypeInteger* make(jlong con, BasicType bt);
610
611 static const TypeInteger* bottom(BasicType type);
612 static const TypeInteger* zero(BasicType type);
613 static const TypeInteger* one(BasicType type);
614 static const TypeInteger* minus_1(BasicType type);
615 };
616
617
618
619 //------------------------------TypeInt----------------------------------------
620 // Class of integer ranges, the set of integers between a lower bound and an
621 // upper bound, inclusive.
622 class TypeInt : public TypeInteger {
623 TypeInt( jint lo, jint hi, int w );
624 protected:
625 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
626
627 public:
628 typedef jint NativeType;
629 virtual bool eq( const Type *t ) const;
630 virtual uint hash() const; // Type specific hashing
631 virtual bool singleton(void) const; // TRUE if type is a singleton
632 virtual bool empty(void) const; // TRUE if type is vacuous
633 const jint _lo, _hi; // Lower bound, upper bound
634
635 static const TypeInt *make(jint lo);
636 // must always specify w
637 static const TypeInt *make(jint lo, jint hi, int w);
638
639 // Check for single integer
640 bool is_con() const { return _lo==_hi; }
641 bool is_con(jint i) const { return is_con() && _lo == i; }
642 jint get_con() const { assert(is_con(), "" ); return _lo; }
643
644 virtual bool is_finite() const; // Has a finite value
645
646 virtual const Type *xmeet( const Type *t ) const;
647 virtual const Type *xdual() const; // Compute dual right now.
648 virtual const Type *widen( const Type *t, const Type* limit_type ) const;
649 virtual const Type *narrow( const Type *t ) const;
650
651 virtual jlong hi_as_long() const { return _hi; }
652 virtual jlong lo_as_long() const { return _lo; }
653
654 // Do not kill _widen bits.
655 // Convenience common pre-built types.
656 static const TypeInt *MAX;
657 static const TypeInt *MIN;
658 static const TypeInt *MINUS_1;
659 static const TypeInt *ZERO;
660 static const TypeInt *ONE;
661 static const TypeInt *BOOL;
662 static const TypeInt *CC;
663 static const TypeInt *CC_LT; // [-1] == MINUS_1
664 static const TypeInt *CC_GT; // [1] == ONE
665 static const TypeInt *CC_EQ; // [0] == ZERO
666 static const TypeInt *CC_LE; // [-1,0]
667 static const TypeInt *CC_GE; // [0,1] == BOOL (!)
668 static const TypeInt *BYTE;
669 static const TypeInt *UBYTE;
670 static const TypeInt *CHAR;
671 static const TypeInt *SHORT;
672 static const TypeInt *POS;
673 static const TypeInt *POS1;
674 static const TypeInt *INT;
675 static const TypeInt *SYMINT; // symmetric range [-max_jint..max_jint]
676 static const TypeInt *TYPE_DOMAIN; // alias for TypeInt::INT
677
678 static const TypeInt *as_self(const Type *t) { return t->is_int(); }
679 #ifndef PRODUCT
680 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
681 #endif
682 };
683
684
685 //------------------------------TypeLong---------------------------------------
686 // Class of long integer ranges, the set of integers between a lower bound and
687 // an upper bound, inclusive.
688 class TypeLong : public TypeInteger {
689 TypeLong( jlong lo, jlong hi, int w );
690 protected:
691 // Do not kill _widen bits.
692 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
693 public:
694 typedef jlong NativeType;
695 virtual bool eq( const Type *t ) const;
696 virtual uint hash() const; // Type specific hashing
697 virtual bool singleton(void) const; // TRUE if type is a singleton
698 virtual bool empty(void) const; // TRUE if type is vacuous
699 public:
700 const jlong _lo, _hi; // Lower bound, upper bound
701
702 static const TypeLong *make(jlong lo);
703 // must always specify w
704 static const TypeLong *make(jlong lo, jlong hi, int w);
705
706 // Check for single integer
707 bool is_con() const { return _lo==_hi; }
708 bool is_con(jlong i) const { return is_con() && _lo == i; }
709 jlong get_con() const { assert(is_con(), "" ); return _lo; }
710
711 // Check for positive 32-bit value.
712 int is_positive_int() const { return _lo >= 0 && _hi <= (jlong)max_jint; }
713
714 virtual bool is_finite() const; // Has a finite value
715
716 virtual jlong hi_as_long() const { return _hi; }
717 virtual jlong lo_as_long() const { return _lo; }
718
719 virtual const Type *xmeet( const Type *t ) const;
720 virtual const Type *xdual() const; // Compute dual right now.
721 virtual const Type *widen( const Type *t, const Type* limit_type ) const;
722 virtual const Type *narrow( const Type *t ) const;
723 // Convenience common pre-built types.
724 static const TypeLong *MAX;
725 static const TypeLong *MIN;
726 static const TypeLong *MINUS_1;
727 static const TypeLong *ZERO;
728 static const TypeLong *ONE;
729 static const TypeLong *POS;
730 static const TypeLong *LONG;
731 static const TypeLong *INT; // 32-bit subrange [min_jint..max_jint]
732 static const TypeLong *UINT; // 32-bit unsigned [0..max_juint]
733 static const TypeLong *TYPE_DOMAIN; // alias for TypeLong::LONG
734
735 // static convenience methods.
736 static const TypeLong *as_self(const Type *t) { return t->is_long(); }
737
738 #ifndef PRODUCT
739 virtual void dump2( Dict &d, uint, outputStream *st ) const;// Specialized per-Type dumping
740 #endif
741 };
742
743 //------------------------------TypeTuple--------------------------------------
744 // Class of Tuple Types, essentially type collections for function signatures
745 // and class layouts. It happens to also be a fast cache for the HotSpot
746 // signature types.
747 class TypeTuple : public Type {
748 TypeTuple( uint cnt, const Type **fields ) : Type(Tuple), _cnt(cnt), _fields(fields) { }
749
750 const uint _cnt; // Count of fields
751 const Type ** const _fields; // Array of field types
752
753 public:
754 virtual bool eq( const Type *t ) const;
755 virtual uint hash() const; // Type specific hashing
756 virtual bool singleton(void) const; // TRUE if type is a singleton
757 virtual bool empty(void) const; // TRUE if type is vacuous
758
759 // Accessors:
760 uint cnt() const { return _cnt; }
761 const Type* field_at(uint i) const {
762 assert(i < _cnt, "oob");
763 return _fields[i];
764 }
765 void set_field_at(uint i, const Type* t) {
766 assert(i < _cnt, "oob");
767 _fields[i] = t;
768 }
769
770 static const TypeTuple *make( uint cnt, const Type **fields );
771 static const TypeTuple *make_range(ciSignature *sig, InterfaceHandling interface_handling = ignore_interfaces);
772 static const TypeTuple *make_domain(ciInstanceKlass* recv, ciSignature *sig, InterfaceHandling interface_handling);
773
774 // Subroutine call type with space allocated for argument types
775 // Memory for Control, I_O, Memory, FramePtr, and ReturnAdr is allocated implicitly
776 static const Type **fields( uint arg_cnt );
777
778 virtual const Type *xmeet( const Type *t ) const;
779 virtual const Type *xdual() const; // Compute dual right now.
780 // Convenience common pre-built types.
781 static const TypeTuple *IFBOTH;
782 static const TypeTuple *IFFALSE;
783 static const TypeTuple *IFTRUE;
784 static const TypeTuple *IFNEITHER;
785 static const TypeTuple *LOOPBODY;
786 static const TypeTuple *MEMBAR;
787 static const TypeTuple *STORECONDITIONAL;
788 static const TypeTuple *START_I2C;
789 static const TypeTuple *INT_PAIR;
790 static const TypeTuple *LONG_PAIR;
791 static const TypeTuple *INT_CC_PAIR;
792 static const TypeTuple *LONG_CC_PAIR;
793 #ifndef PRODUCT
794 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping
795 #endif
796 };
797
798 //------------------------------TypeAry----------------------------------------
799 // Class of Array Types
800 class TypeAry : public Type {
801 TypeAry(const Type* elem, const TypeInt* size, bool stable) : Type(Array),
802 _elem(elem), _size(size), _stable(stable) {}
803 public:
804 virtual bool eq( const Type *t ) const;
805 virtual uint hash() const; // Type specific hashing
806 virtual bool singleton(void) const; // TRUE if type is a singleton
807 virtual bool empty(void) const; // TRUE if type is vacuous
808
809 private:
810 const Type *_elem; // Element type of array
811 const TypeInt *_size; // Elements in array
812 const bool _stable; // Are elements @Stable?
813 friend class TypeAryPtr;
814
815 public:
816 static const TypeAry* make(const Type* elem, const TypeInt* size, bool stable = false);
817
818 virtual const Type *xmeet( const Type *t ) const;
819 virtual const Type *xdual() const; // Compute dual right now.
820 bool ary_must_be_exact() const; // true if arrays of such are never generic
821 virtual const TypeAry* remove_speculative() const;
822 virtual const Type* cleanup_speculative() const;
823 #ifndef PRODUCT
824 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping
825 #endif
826 };
827
828 //------------------------------TypeVect---------------------------------------
829 // Class of Vector Types
830 class TypeVect : public Type {
831 const BasicType _elem_bt; // Vector's element type
832 const uint _length; // Elements in vector (power of 2)
833
834 protected:
835 TypeVect(TYPES t, BasicType elem_bt, uint length) : Type(t),
836 _elem_bt(elem_bt), _length(length) {}
837
838 public:
839 BasicType element_basic_type() const { return _elem_bt; }
840 uint length() const { return _length; }
841 uint length_in_bytes() const {
842 return _length * type2aelembytes(element_basic_type());
843 }
844
845 virtual bool eq(const Type* t) const;
846 virtual uint hash() const; // Type specific hashing
847 virtual bool singleton(void) const; // TRUE if type is a singleton
848 virtual bool empty(void) const; // TRUE if type is vacuous
849
850 static const TypeVect* make(const BasicType elem_bt, uint length, bool is_mask = false);
851 static const TypeVect* makemask(const BasicType elem_bt, uint length);
852
853 virtual const Type* xmeet( const Type *t) const;
854 virtual const Type* xdual() const; // Compute dual right now.
855
856 static const TypeVect* VECTA;
857 static const TypeVect* VECTS;
858 static const TypeVect* VECTD;
859 static const TypeVect* VECTX;
860 static const TypeVect* VECTY;
861 static const TypeVect* VECTZ;
862 static const TypeVect* VECTMASK;
863
864 #ifndef PRODUCT
865 virtual void dump2(Dict& d, uint, outputStream* st) const; // Specialized per-Type dumping
866 #endif
867 };
868
869 class TypeVectA : public TypeVect {
870 friend class TypeVect;
871 TypeVectA(BasicType elem_bt, uint length) : TypeVect(VectorA, elem_bt, length) {}
872 };
873
874 class TypeVectS : public TypeVect {
875 friend class TypeVect;
876 TypeVectS(BasicType elem_bt, uint length) : TypeVect(VectorS, elem_bt, length) {}
877 };
878
879 class TypeVectD : public TypeVect {
880 friend class TypeVect;
881 TypeVectD(BasicType elem_bt, uint length) : TypeVect(VectorD, elem_bt, length) {}
882 };
883
884 class TypeVectX : public TypeVect {
885 friend class TypeVect;
886 TypeVectX(BasicType elem_bt, uint length) : TypeVect(VectorX, elem_bt, length) {}
887 };
888
889 class TypeVectY : public TypeVect {
890 friend class TypeVect;
891 TypeVectY(BasicType elem_bt, uint length) : TypeVect(VectorY, elem_bt, length) {}
892 };
893
894 class TypeVectZ : public TypeVect {
895 friend class TypeVect;
896 TypeVectZ(BasicType elem_bt, uint length) : TypeVect(VectorZ, elem_bt, length) {}
897 };
898
899 class TypeVectMask : public TypeVect {
900 public:
901 friend class TypeVect;
902 TypeVectMask(BasicType elem_bt, uint length) : TypeVect(VectorMask, elem_bt, length) {}
903 static const TypeVectMask* make(const BasicType elem_bt, uint length);
904 };
905
906 // Set of implemented interfaces. Referenced from TypeOopPtr and TypeKlassPtr.
907 class TypeInterfaces : public Type {
908 private:
909 GrowableArrayFromArray<ciInstanceKlass*> _interfaces;
910 uint _hash;
911 ciInstanceKlass* _exact_klass;
912 DEBUG_ONLY(bool _initialized;)
913
914 void initialize();
915
916 void verify() const NOT_DEBUG_RETURN;
917 void compute_hash();
918 void compute_exact_klass();
919
920 TypeInterfaces(ciInstanceKlass** interfaces_base, int nb_interfaces);
921
922 NONCOPYABLE(TypeInterfaces);
923 public:
924 static const TypeInterfaces* make(GrowableArray<ciInstanceKlass*>* interfaces = nullptr);
925 bool eq(const Type* other) const;
926 bool eq(ciInstanceKlass* k) const;
927 uint hash() const;
928 const Type *xdual() const;
929 void dump(outputStream* st) const;
930 const TypeInterfaces* union_with(const TypeInterfaces* other) const;
931 const TypeInterfaces* intersection_with(const TypeInterfaces* other) const;
932 bool contains(const TypeInterfaces* other) const {
933 return intersection_with(other)->eq(other);
934 }
935 bool empty() const { return _interfaces.length() == 0; }
936
937 ciInstanceKlass* exact_klass() const;
938 void verify_is_loaded() const NOT_DEBUG_RETURN;
939
940 static int compare(ciInstanceKlass* const& k1, ciInstanceKlass* const& k2);
941 static int compare(ciInstanceKlass** k1, ciInstanceKlass** k2);
942
943 const Type* xmeet(const Type* t) const;
944
945 bool singleton(void) const;
946 bool has_non_array_interface() const;
947 };
948
949 //------------------------------TypePtr----------------------------------------
950 // Class of machine Pointer Types: raw data, instances or arrays.
951 // If the _base enum is AnyPtr, then this refers to all of the above.
952 // Otherwise the _base will indicate which subset of pointers is affected,
953 // and the class will be inherited from.
954 class TypePtr : public Type {
955 friend class TypeNarrowPtr;
956 friend class Type;
957 protected:
958 static const TypeInterfaces* interfaces(ciKlass*& k, bool klass, bool interface, bool array, InterfaceHandling interface_handling);
959
960 public:
961 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR };
962 protected:
963 TypePtr(TYPES t, PTR ptr, int offset,
964 const TypePtr* speculative = nullptr,
965 int inline_depth = InlineDepthBottom) :
966 Type(t), _speculative(speculative), _inline_depth(inline_depth), _offset(offset),
967 _ptr(ptr) {}
968 static const PTR ptr_meet[lastPTR][lastPTR];
969 static const PTR ptr_dual[lastPTR];
970 static const char * const ptr_msg[lastPTR];
971
972 enum {
973 InlineDepthBottom = INT_MAX,
974 InlineDepthTop = -InlineDepthBottom
975 };
976
977 // Extra type information profiling gave us. We propagate it the
978 // same way the rest of the type info is propagated. If we want to
979 // use it, then we have to emit a guard: this part of the type is
980 // not something we know but something we speculate about the type.
981 const TypePtr* _speculative;
982 // For speculative types, we record at what inlining depth the
983 // profiling point that provided the data is. We want to favor
984 // profile data coming from outer scopes which are likely better for
985 // the current compilation.
986 int _inline_depth;
987
988 // utility methods to work on the speculative part of the type
989 const TypePtr* dual_speculative() const;
990 const TypePtr* xmeet_speculative(const TypePtr* other) const;
991 bool eq_speculative(const TypePtr* other) const;
992 int hash_speculative() const;
993 const TypePtr* add_offset_speculative(intptr_t offset) const;
994 const TypePtr* with_offset_speculative(intptr_t offset) const;
995 #ifndef PRODUCT
996 void dump_speculative(outputStream *st) const;
997 #endif
998
999 // utility methods to work on the inline depth of the type
1000 int dual_inline_depth() const;
1001 int meet_inline_depth(int depth) const;
1002 #ifndef PRODUCT
1003 void dump_inline_depth(outputStream *st) const;
1004 #endif
1005
1006 // TypeInstPtr (TypeAryPtr resp.) and TypeInstKlassPtr (TypeAryKlassPtr resp.) implement very similar meet logic.
1007 // The logic for meeting 2 instances (2 arrays resp.) is shared in the 2 utility methods below. However the logic for
1008 // the oop and klass versions can be slightly different and extra logic may have to be executed depending on what
1009 // exact case the meet falls into. The MeetResult struct is used by the utility methods to communicate what case was
1010 // encountered so the right logic specific to klasses or oops can be executed.,
1011 enum MeetResult {
1012 QUICK,
1013 UNLOADED,
1014 SUBTYPE,
1015 NOT_SUBTYPE,
1016 LCA
1017 };
1018 template<class T> static TypePtr::MeetResult meet_instptr(PTR& ptr, const TypeInterfaces*& interfaces, const T* this_type,
1019 const T* other_type, ciKlass*& res_klass, bool& res_xk);
1020
1021 template<class T> static MeetResult meet_aryptr(PTR& ptr, const Type*& elem, const T* this_ary, const T* other_ary,
1022 ciKlass*& res_klass, bool& res_xk);
1023
1024 template <class T1, class T2> static bool is_java_subtype_of_helper_for_instance(const T1* this_one, const T2* other, bool this_exact, bool other_exact);
1025 template <class T1, class T2> static bool is_same_java_type_as_helper_for_instance(const T1* this_one, const T2* other);
1026 template <class T1, class T2> static bool maybe_java_subtype_of_helper_for_instance(const T1* this_one, const T2* other, bool this_exact, bool other_exact);
1027 template <class T1, class T2> static bool is_java_subtype_of_helper_for_array(const T1* this_one, const T2* other, bool this_exact, bool other_exact);
1028 template <class T1, class T2> static bool is_same_java_type_as_helper_for_array(const T1* this_one, const T2* other);
1029 template <class T1, class T2> static bool maybe_java_subtype_of_helper_for_array(const T1* this_one, const T2* other, bool this_exact, bool other_exact);
1030 template <class T1, class T2> static bool is_meet_subtype_of_helper_for_instance(const T1* this_one, const T2* other, bool this_xk, bool other_xk);
1031 template <class T1, class T2> static bool is_meet_subtype_of_helper_for_array(const T1* this_one, const T2* other, bool this_xk, bool other_xk);
1032 public:
1033 const int _offset; // Offset into oop, with TOP & BOT
1034 const PTR _ptr; // Pointer equivalence class
1035
1036 int offset() const { return _offset; }
1037 PTR ptr() const { return _ptr; }
1038
1039 static const TypePtr *make(TYPES t, PTR ptr, int offset,
1040 const TypePtr* speculative = nullptr,
1041 int inline_depth = InlineDepthBottom);
1042
1043 // Return a 'ptr' version of this type
1044 virtual const TypePtr* cast_to_ptr_type(PTR ptr) const;
1045
1046 virtual intptr_t get_con() const;
1047
1048 int xadd_offset( intptr_t offset ) const;
1049 virtual const TypePtr* add_offset(intptr_t offset) const;
1050 virtual const TypePtr* with_offset(intptr_t offset) const;
1051 virtual bool eq(const Type *t) const;
1052 virtual uint hash() const; // Type specific hashing
1053
1054 virtual bool singleton(void) const; // TRUE if type is a singleton
1055 virtual bool empty(void) const; // TRUE if type is vacuous
1056 virtual const Type *xmeet( const Type *t ) const;
1057 virtual const Type *xmeet_helper( const Type *t ) const;
1058 int meet_offset( int offset ) const;
1059 int dual_offset( ) const;
1060 virtual const Type *xdual() const; // Compute dual right now.
1061
1062 // meet, dual and join over pointer equivalence sets
1063 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; }
1064 PTR dual_ptr() const { return ptr_dual[ptr()]; }
1065
1066 // This is textually confusing unless one recalls that
1067 // join(t) == dual()->meet(t->dual())->dual().
1068 PTR join_ptr( const PTR in_ptr ) const {
1069 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ];
1070 }
1071
1072 // Speculative type helper methods.
1073 virtual const TypePtr* speculative() const { return _speculative; }
1074 int inline_depth() const { return _inline_depth; }
1075 virtual ciKlass* speculative_type() const;
1076 virtual ciKlass* speculative_type_not_null() const;
1077 virtual bool speculative_maybe_null() const;
1078 virtual bool speculative_always_null() const;
1079 virtual const TypePtr* remove_speculative() const;
1080 virtual const Type* cleanup_speculative() const;
1081 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const;
1082 virtual bool would_improve_ptr(ProfilePtrKind maybe_null) const;
1083 virtual const TypePtr* with_inline_depth(int depth) const;
1084
1085 virtual bool maybe_null() const { return meet_ptr(Null) == ptr(); }
1086
1087 // Tests for relation to centerline of type lattice:
1088 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); }
1089 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); }
1090 // Convenience common pre-built types.
1091 static const TypePtr *NULL_PTR;
1092 static const TypePtr *NOTNULL;
1093 static const TypePtr *BOTTOM;
1094 #ifndef PRODUCT
1095 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1096 #endif
1097 };
1098
1099 //------------------------------TypeRawPtr-------------------------------------
1100 // Class of raw pointers, pointers to things other than Oops. Examples
1101 // include the stack pointer, top of heap, card-marking area, handles, etc.
1102 class TypeRawPtr : public TypePtr {
1103 protected:
1104 TypeRawPtr( PTR ptr, address bits ) : TypePtr(RawPtr,ptr,0), _bits(bits){}
1105 public:
1106 virtual bool eq( const Type *t ) const;
1107 virtual uint hash() const; // Type specific hashing
1108
1109 const address _bits; // Constant value, if applicable
1110
1111 static const TypeRawPtr *make( PTR ptr );
1112 static const TypeRawPtr *make( address bits );
1113
1114 // Return a 'ptr' version of this type
1115 virtual const TypeRawPtr* cast_to_ptr_type(PTR ptr) const;
1116
1117 virtual intptr_t get_con() const;
1118
1119 virtual const TypePtr* add_offset(intptr_t offset) const;
1120 virtual const TypeRawPtr* with_offset(intptr_t offset) const { ShouldNotReachHere(); return nullptr;}
1121
1122 virtual const Type *xmeet( const Type *t ) const;
1123 virtual const Type *xdual() const; // Compute dual right now.
1124 // Convenience common pre-built types.
1125 static const TypeRawPtr *BOTTOM;
1126 static const TypeRawPtr *NOTNULL;
1127 #ifndef PRODUCT
1128 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1129 #endif
1130 };
1131
1132 //------------------------------TypeOopPtr-------------------------------------
1133 // Some kind of oop (Java pointer), either instance or array.
1134 class TypeOopPtr : public TypePtr {
1135 friend class TypeAry;
1136 friend class TypePtr;
1137 friend class TypeInstPtr;
1138 friend class TypeAryPtr;
1139 protected:
1140 TypeOopPtr(TYPES t, PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, bool xk, ciObject* o, int offset, int instance_id,
1141 const TypePtr* speculative, int inline_depth);
1142 public:
1143 virtual bool eq( const Type *t ) const;
1144 virtual uint hash() const; // Type specific hashing
1145 virtual bool singleton(void) const; // TRUE if type is a singleton
1146 enum {
1147 InstanceTop = -1, // undefined instance
1148 InstanceBot = 0 // any possible instance
1149 };
1150 protected:
1151
1152 // Oop is null, unless this is a constant oop.
1153 ciObject* _const_oop; // Constant oop
1154 // If _klass is null, then so is _sig. This is an unloaded klass.
1155 ciKlass* _klass; // Klass object
1156
1157 const TypeInterfaces* _interfaces;
1158
1159 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.)
1160 bool _klass_is_exact;
1161 bool _is_ptr_to_narrowoop;
1162 bool _is_ptr_to_narrowklass;
1163 bool _is_ptr_to_boxed_value;
1164
1165 // If not InstanceTop or InstanceBot, indicates that this is
1166 // a particular instance of this type which is distinct.
1167 // This is the node index of the allocation node creating this instance.
1168 int _instance_id;
1169
1170 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact, InterfaceHandling interface_handling);
1171
1172 int dual_instance_id() const;
1173 int meet_instance_id(int uid) const;
1174
1175 const TypeInterfaces* meet_interfaces(const TypeOopPtr* other) const;
1176
1177 // Do not allow interface-vs.-noninterface joins to collapse to top.
1178 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1179
1180 virtual ciKlass* exact_klass_helper() const { return nullptr; }
1181 virtual ciKlass* klass() const { return _klass; }
1182
1183 public:
1184
1185 bool is_java_subtype_of(const TypeOopPtr* other) const {
1186 return is_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1187 }
1188
1189 bool is_same_java_type_as(const TypePtr* other) const {
1190 return is_same_java_type_as_helper(other->is_oopptr());
1191 }
1192
1193 virtual bool is_same_java_type_as_helper(const TypeOopPtr* other) const {
1194 ShouldNotReachHere(); return false;
1195 }
1196
1197 bool maybe_java_subtype_of(const TypeOopPtr* other) const {
1198 return maybe_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1199 }
1200 virtual bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1201 virtual bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1202
1203
1204 // Creates a type given a klass. Correctly handles multi-dimensional arrays
1205 // Respects UseUniqueSubclasses.
1206 // If the klass is final, the resulting type will be exact.
1207 static const TypeOopPtr* make_from_klass(ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces) {
1208 return make_from_klass_common(klass, true, false, interface_handling);
1209 }
1210 // Same as before, but will produce an exact type, even if
1211 // the klass is not final, as long as it has exactly one implementation.
1212 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass, InterfaceHandling interface_handling= ignore_interfaces) {
1213 return make_from_klass_common(klass, true, true, interface_handling);
1214 }
1215 // Same as before, but does not respects UseUniqueSubclasses.
1216 // Use this only for creating array element types.
1217 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces) {
1218 return make_from_klass_common(klass, false, false, interface_handling);
1219 }
1220 // Creates a singleton type given an object.
1221 // If the object cannot be rendered as a constant,
1222 // may return a non-singleton type.
1223 // If require_constant, produce a null if a singleton is not possible.
1224 static const TypeOopPtr* make_from_constant(ciObject* o,
1225 bool require_constant = false);
1226
1227 // Make a generic (unclassed) pointer to an oop.
1228 static const TypeOopPtr* make(PTR ptr, int offset, int instance_id,
1229 const TypePtr* speculative = nullptr,
1230 int inline_depth = InlineDepthBottom);
1231
1232 ciObject* const_oop() const { return _const_oop; }
1233 // Exact klass, possibly an interface or an array of interface
1234 ciKlass* exact_klass(bool maybe_null = false) const { assert(klass_is_exact(), ""); ciKlass* k = exact_klass_helper(); assert(k != nullptr || maybe_null, ""); return k; }
1235 ciKlass* unloaded_klass() const { assert(!is_loaded(), "only for unloaded types"); return klass(); }
1236
1237 virtual bool is_loaded() const { return klass()->is_loaded(); }
1238 virtual bool klass_is_exact() const { return _klass_is_exact; }
1239
1240 // Returns true if this pointer points at memory which contains a
1241 // compressed oop references.
1242 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; }
1243 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; }
1244 bool is_ptr_to_boxed_value() const { return _is_ptr_to_boxed_value; }
1245 bool is_known_instance() const { return _instance_id > 0; }
1246 int instance_id() const { return _instance_id; }
1247 bool is_known_instance_field() const { return is_known_instance() && _offset >= 0; }
1248
1249 virtual intptr_t get_con() const;
1250
1251 virtual const TypeOopPtr* cast_to_ptr_type(PTR ptr) const;
1252
1253 virtual const TypeOopPtr* cast_to_exactness(bool klass_is_exact) const;
1254
1255 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const;
1256
1257 // corresponding pointer to klass, for a given instance
1258 virtual const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1259
1260 virtual const TypeOopPtr* with_offset(intptr_t offset) const;
1261 virtual const TypePtr* add_offset(intptr_t offset) const;
1262
1263 // Speculative type helper methods.
1264 virtual const TypeOopPtr* remove_speculative() const;
1265 virtual const Type* cleanup_speculative() const;
1266 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const;
1267 virtual const TypePtr* with_inline_depth(int depth) const;
1268
1269 virtual const TypePtr* with_instance_id(int instance_id) const;
1270
1271 virtual const Type *xdual() const; // Compute dual right now.
1272 // the core of the computation of the meet for TypeOopPtr and for its subclasses
1273 virtual const Type *xmeet_helper(const Type *t) const;
1274
1275 // Convenience common pre-built type.
1276 static const TypeOopPtr *BOTTOM;
1277 #ifndef PRODUCT
1278 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1279 #endif
1280 private:
1281 virtual bool is_meet_subtype_of(const TypePtr* other) const {
1282 return is_meet_subtype_of_helper(other->is_oopptr(), klass_is_exact(), other->is_oopptr()->klass_is_exact());
1283 }
1284
1285 virtual bool is_meet_subtype_of_helper(const TypeOopPtr* other, bool this_xk, bool other_xk) const {
1286 ShouldNotReachHere(); return false;
1287 }
1288
1289 virtual const TypeInterfaces* interfaces() const {
1290 return _interfaces;
1291 };
1292
1293 const TypeOopPtr* is_reference_type(const Type* other) const {
1294 return other->isa_oopptr();
1295 }
1296
1297 const TypeAryPtr* is_array_type(const TypeOopPtr* other) const {
1298 return other->isa_aryptr();
1299 }
1300
1301 const TypeInstPtr* is_instance_type(const TypeOopPtr* other) const {
1302 return other->isa_instptr();
1303 }
1304 };
1305
1306 //------------------------------TypeInstPtr------------------------------------
1307 // Class of Java object pointers, pointing either to non-array Java instances
1308 // or to a Klass* (including array klasses).
1309 class TypeInstPtr : public TypeOopPtr {
1310 TypeInstPtr(PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, bool xk, ciObject* o, int off, int instance_id,
1311 const TypePtr* speculative, int inline_depth);
1312 virtual bool eq( const Type *t ) const;
1313 virtual uint hash() const; // Type specific hashing
1314
1315 ciKlass* exact_klass_helper() const;
1316
1317 public:
1318
1319 // Instance klass, ignoring any interface
1320 ciInstanceKlass* instance_klass() const {
1321 assert(!(klass()->is_loaded() && klass()->is_interface()), "");
1322 return klass()->as_instance_klass();
1323 }
1324
1325 bool is_same_java_type_as_helper(const TypeOopPtr* other) const;
1326 bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1327 bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1328
1329 // Make a pointer to a constant oop.
1330 static const TypeInstPtr *make(ciObject* o) {
1331 ciKlass* k = o->klass();
1332 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1333 return make(TypePtr::Constant, k, interfaces, true, o, 0, InstanceBot);
1334 }
1335 // Make a pointer to a constant oop with offset.
1336 static const TypeInstPtr *make(ciObject* o, int offset) {
1337 ciKlass* k = o->klass();
1338 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1339 return make(TypePtr::Constant, k, interfaces, true, o, offset, InstanceBot);
1340 }
1341
1342 // Make a pointer to some value of type klass.
1343 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces) {
1344 const TypeInterfaces* interfaces = TypePtr::interfaces(klass, true, true, false, interface_handling);
1345 return make(ptr, klass, interfaces, false, nullptr, 0, InstanceBot);
1346 }
1347
1348 // Make a pointer to some non-polymorphic value of exactly type klass.
1349 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) {
1350 const TypeInterfaces* interfaces = TypePtr::interfaces(klass, true, false, false, ignore_interfaces);
1351 return make(ptr, klass, interfaces, true, nullptr, 0, InstanceBot);
1352 }
1353
1354 // Make a pointer to some value of type klass with offset.
1355 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, int offset) {
1356 const TypeInterfaces* interfaces = TypePtr::interfaces(klass, true, false, false, ignore_interfaces);
1357 return make(ptr, klass, interfaces, false, nullptr, offset, InstanceBot);
1358 }
1359
1360 static const TypeInstPtr *make(PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, bool xk, ciObject* o, int offset,
1361 int instance_id = InstanceBot,
1362 const TypePtr* speculative = nullptr,
1363 int inline_depth = InlineDepthBottom);
1364
1365 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id = InstanceBot) {
1366 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1367 return make(ptr, k, interfaces, xk, o, offset, instance_id);
1368 }
1369
1370 /** Create constant type for a constant boxed value */
1371 const Type* get_const_boxed_value() const;
1372
1373 // If this is a java.lang.Class constant, return the type for it or null.
1374 // Pass to Type::get_const_type to turn it to a type, which will usually
1375 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc.
1376 ciType* java_mirror_type() const;
1377
1378 virtual const TypeInstPtr* cast_to_ptr_type(PTR ptr) const;
1379
1380 virtual const TypeInstPtr* cast_to_exactness(bool klass_is_exact) const;
1381
1382 virtual const TypeInstPtr* cast_to_instance_id(int instance_id) const;
1383
1384 virtual const TypePtr* add_offset(intptr_t offset) const;
1385 virtual const TypeInstPtr* with_offset(intptr_t offset) const;
1386
1387 // Speculative type helper methods.
1388 virtual const TypeInstPtr* remove_speculative() const;
1389 const TypeInstPtr* with_speculative(const TypePtr* speculative) const;
1390 virtual const TypePtr* with_inline_depth(int depth) const;
1391 virtual const TypePtr* with_instance_id(int instance_id) const;
1392
1393 // the core of the computation of the meet of 2 types
1394 virtual const Type *xmeet_helper(const Type *t) const;
1395 virtual const TypeInstPtr *xmeet_unloaded(const TypeInstPtr *tinst, const TypeInterfaces* interfaces) const;
1396 virtual const Type *xdual() const; // Compute dual right now.
1397
1398 const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1399
1400 // Convenience common pre-built types.
1401 static const TypeInstPtr *NOTNULL;
1402 static const TypeInstPtr *BOTTOM;
1403 static const TypeInstPtr *MIRROR;
1404 static const TypeInstPtr *MARK;
1405 static const TypeInstPtr *KLASS;
1406 #ifndef PRODUCT
1407 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1408 #endif
1409
1410 private:
1411 virtual bool is_meet_subtype_of_helper(const TypeOopPtr* other, bool this_xk, bool other_xk) const;
1412
1413 virtual bool is_meet_same_type_as(const TypePtr* other) const {
1414 return _klass->equals(other->is_instptr()->_klass) && _interfaces->eq(other->is_instptr()->_interfaces);
1415 }
1416
1417 };
1418
1419 //------------------------------TypeAryPtr-------------------------------------
1420 // Class of Java array pointers
1421 class TypeAryPtr : public TypeOopPtr {
1422 friend class Type;
1423 friend class TypePtr;
1424 friend class TypeInterfaces;
1425
1426 TypeAryPtr( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk,
1427 int offset, int instance_id, bool is_autobox_cache,
1428 const TypePtr* speculative, int inline_depth)
1429 : TypeOopPtr(AryPtr,ptr,k,_array_interfaces,xk,o,offset, instance_id, speculative, inline_depth),
1430 _ary(ary),
1431 _is_autobox_cache(is_autobox_cache)
1432 {
1433 int dummy;
1434 bool top_or_bottom = (base_element_type(dummy) == Type::TOP || base_element_type(dummy) == Type::BOTTOM);
1435
1436 if (UseCompressedOops && (elem()->make_oopptr() != nullptr && !top_or_bottom) &&
1437 _offset != 0 && _offset != arrayOopDesc::length_offset_in_bytes() &&
1438 _offset != arrayOopDesc::klass_offset_in_bytes()) {
1439 _is_ptr_to_narrowoop = true;
1440 }
1441
1442 }
1443 virtual bool eq( const Type *t ) const;
1444 virtual uint hash() const; // Type specific hashing
1445 const TypeAry *_ary; // Array we point into
1446 const bool _is_autobox_cache;
1447
1448 ciKlass* compute_klass() const;
1449
1450 // A pointer to delay allocation to Type::Initialize_shared()
1451
1452 static const TypeInterfaces* _array_interfaces;
1453 ciKlass* exact_klass_helper() const;
1454 // Only guaranteed non null for array of basic types
1455 ciKlass* klass() const;
1456
1457 public:
1458
1459 bool is_same_java_type_as_helper(const TypeOopPtr* other) const;
1460 bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1461 bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1462
1463 // returns base element type, an instance klass (and not interface) for object arrays
1464 const Type* base_element_type(int& dims) const;
1465
1466 // Accessors
1467 bool is_loaded() const { return (_ary->_elem->make_oopptr() ? _ary->_elem->make_oopptr()->is_loaded() : true); }
1468
1469 const TypeAry* ary() const { return _ary; }
1470 const Type* elem() const { return _ary->_elem; }
1471 const TypeInt* size() const { return _ary->_size; }
1472 bool is_stable() const { return _ary->_stable; }
1473
1474 bool is_autobox_cache() const { return _is_autobox_cache; }
1475
1476 static const TypeAryPtr *make(PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset,
1477 int instance_id = InstanceBot,
1478 const TypePtr* speculative = nullptr,
1479 int inline_depth = InlineDepthBottom);
1480 // Constant pointer to array
1481 static const TypeAryPtr *make(PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, int offset,
1482 int instance_id = InstanceBot,
1483 const TypePtr* speculative = nullptr,
1484 int inline_depth = InlineDepthBottom, bool is_autobox_cache = false);
1485
1486 // Return a 'ptr' version of this type
1487 virtual const TypeAryPtr* cast_to_ptr_type(PTR ptr) const;
1488
1489 virtual const TypeAryPtr* cast_to_exactness(bool klass_is_exact) const;
1490
1491 virtual const TypeAryPtr* cast_to_instance_id(int instance_id) const;
1492
1493 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const;
1494 virtual const TypeInt* narrow_size_type(const TypeInt* size) const;
1495
1496 virtual bool empty(void) const; // TRUE if type is vacuous
1497 virtual const TypePtr *add_offset( intptr_t offset ) const;
1498 virtual const TypeAryPtr *with_offset( intptr_t offset ) const;
1499 const TypeAryPtr* with_ary(const TypeAry* ary) const;
1500
1501 // Speculative type helper methods.
1502 virtual const TypeAryPtr* remove_speculative() const;
1503 virtual const TypePtr* with_inline_depth(int depth) const;
1504 virtual const TypePtr* with_instance_id(int instance_id) const;
1505
1506 // the core of the computation of the meet of 2 types
1507 virtual const Type *xmeet_helper(const Type *t) const;
1508 virtual const Type *xdual() const; // Compute dual right now.
1509
1510 const TypeAryPtr* cast_to_stable(bool stable, int stable_dimension = 1) const;
1511 int stable_dimension() const;
1512
1513 const TypeAryPtr* cast_to_autobox_cache() const;
1514
1515 static jint max_array_length(BasicType etype) ;
1516 virtual const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1517
1518 // Convenience common pre-built types.
1519 static const TypeAryPtr* BOTTOM;
1520 static const TypeAryPtr* RANGE;
1521 static const TypeAryPtr* OOPS;
1522 static const TypeAryPtr* NARROWOOPS;
1523 static const TypeAryPtr* BYTES;
1524 static const TypeAryPtr* SHORTS;
1525 static const TypeAryPtr* CHARS;
1526 static const TypeAryPtr* INTS;
1527 static const TypeAryPtr* LONGS;
1528 static const TypeAryPtr* FLOATS;
1529 static const TypeAryPtr* DOUBLES;
1530 // selects one of the above:
1531 static const TypeAryPtr *get_array_body_type(BasicType elem) {
1532 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != nullptr, "bad elem type");
1533 return _array_body_type[elem];
1534 }
1535 static const TypeAryPtr *_array_body_type[T_CONFLICT+1];
1536 // sharpen the type of an int which is used as an array size
1537 #ifndef PRODUCT
1538 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1539 #endif
1540 private:
1541 virtual bool is_meet_subtype_of_helper(const TypeOopPtr* other, bool this_xk, bool other_xk) const;
1542 };
1543
1544 //------------------------------TypeMetadataPtr-------------------------------------
1545 // Some kind of metadata, either Method*, MethodData* or CPCacheOop
1546 class TypeMetadataPtr : public TypePtr {
1547 protected:
1548 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, int offset);
1549 // Do not allow interface-vs.-noninterface joins to collapse to top.
1550 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1551 public:
1552 virtual bool eq( const Type *t ) const;
1553 virtual uint hash() const; // Type specific hashing
1554 virtual bool singleton(void) const; // TRUE if type is a singleton
1555
1556 private:
1557 ciMetadata* _metadata;
1558
1559 public:
1560 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, int offset);
1561
1562 static const TypeMetadataPtr* make(ciMethod* m);
1563 static const TypeMetadataPtr* make(ciMethodData* m);
1564
1565 ciMetadata* metadata() const { return _metadata; }
1566
1567 virtual const TypeMetadataPtr* cast_to_ptr_type(PTR ptr) const;
1568
1569 virtual const TypePtr *add_offset( intptr_t offset ) const;
1570
1571 virtual const Type *xmeet( const Type *t ) const;
1572 virtual const Type *xdual() const; // Compute dual right now.
1573
1574 virtual intptr_t get_con() const;
1575
1576 // Convenience common pre-built types.
1577 static const TypeMetadataPtr *BOTTOM;
1578
1579 #ifndef PRODUCT
1580 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1581 #endif
1582 };
1583
1584 //------------------------------TypeKlassPtr-----------------------------------
1585 // Class of Java Klass pointers
1586 class TypeKlassPtr : public TypePtr {
1587 friend class TypeInstKlassPtr;
1588 friend class TypeAryKlassPtr;
1589 friend class TypePtr;
1590 protected:
1591 TypeKlassPtr(TYPES t, PTR ptr, ciKlass* klass, const TypeInterfaces* interfaces, int offset);
1592
1593 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1594
1595 public:
1596 virtual bool eq( const Type *t ) const;
1597 virtual uint hash() const;
1598 virtual bool singleton(void) const; // TRUE if type is a singleton
1599
1600 protected:
1601
1602 ciKlass* _klass;
1603 const TypeInterfaces* _interfaces;
1604 const TypeInterfaces* meet_interfaces(const TypeKlassPtr* other) const;
1605 virtual bool must_be_exact() const { ShouldNotReachHere(); return false; }
1606 virtual ciKlass* exact_klass_helper() const;
1607 virtual ciKlass* klass() const { return _klass; }
1608
1609 public:
1610
1611 bool is_java_subtype_of(const TypeKlassPtr* other) const {
1612 return is_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1613 }
1614 bool is_same_java_type_as(const TypePtr* other) const {
1615 return is_same_java_type_as_helper(other->is_klassptr());
1616 }
1617
1618 bool maybe_java_subtype_of(const TypeKlassPtr* other) const {
1619 return maybe_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1620 }
1621 virtual bool is_same_java_type_as_helper(const TypeKlassPtr* other) const { ShouldNotReachHere(); return false; }
1622 virtual bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1623 virtual bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1624
1625 // Exact klass, possibly an interface or an array of interface
1626 ciKlass* exact_klass(bool maybe_null = false) const { assert(klass_is_exact(), ""); ciKlass* k = exact_klass_helper(); assert(k != nullptr || maybe_null, ""); return k; }
1627 virtual bool klass_is_exact() const { return _ptr == Constant; }
1628
1629 static const TypeKlassPtr* make(ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces);
1630 static const TypeKlassPtr *make(PTR ptr, ciKlass* klass, int offset, InterfaceHandling interface_handling = ignore_interfaces);
1631
1632 virtual bool is_loaded() const { return _klass->is_loaded(); }
1633
1634 virtual const TypeKlassPtr* cast_to_ptr_type(PTR ptr) const { ShouldNotReachHere(); return nullptr; }
1635
1636 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const { ShouldNotReachHere(); return nullptr; }
1637
1638 // corresponding pointer to instance, for a given class
1639 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const { ShouldNotReachHere(); return nullptr; }
1640
1641 virtual const TypePtr *add_offset( intptr_t offset ) const { ShouldNotReachHere(); return nullptr; }
1642 virtual const Type *xmeet( const Type *t ) const { ShouldNotReachHere(); return nullptr; }
1643 virtual const Type *xdual() const { ShouldNotReachHere(); return nullptr; }
1644
1645 virtual intptr_t get_con() const;
1646
1647 virtual const TypeKlassPtr* with_offset(intptr_t offset) const { ShouldNotReachHere(); return nullptr; }
1648
1649 virtual const TypeKlassPtr* try_improve() const { return this; }
1650
1651 #ifndef PRODUCT
1652 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1653 #endif
1654 private:
1655 virtual bool is_meet_subtype_of(const TypePtr* other) const {
1656 return is_meet_subtype_of_helper(other->is_klassptr(), klass_is_exact(), other->is_klassptr()->klass_is_exact());
1657 }
1658
1659 virtual bool is_meet_subtype_of_helper(const TypeKlassPtr* other, bool this_xk, bool other_xk) const {
1660 ShouldNotReachHere(); return false;
1661 }
1662
1663 virtual const TypeInterfaces* interfaces() const {
1664 return _interfaces;
1665 };
1666
1667 const TypeKlassPtr* is_reference_type(const Type* other) const {
1668 return other->isa_klassptr();
1669 }
1670
1671 const TypeAryKlassPtr* is_array_type(const TypeKlassPtr* other) const {
1672 return other->isa_aryklassptr();
1673 }
1674
1675 const TypeInstKlassPtr* is_instance_type(const TypeKlassPtr* other) const {
1676 return other->isa_instklassptr();
1677 }
1678 };
1679
1680 // Instance klass pointer, mirrors TypeInstPtr
1681 class TypeInstKlassPtr : public TypeKlassPtr {
1682
1683 TypeInstKlassPtr(PTR ptr, ciKlass* klass, const TypeInterfaces* interfaces, int offset)
1684 : TypeKlassPtr(InstKlassPtr, ptr, klass, interfaces, offset) {
1685 assert(klass->is_instance_klass() && (!klass->is_loaded() || !klass->is_interface()), "");
1686 }
1687
1688 virtual bool must_be_exact() const;
1689
1690 public:
1691 // Instance klass ignoring any interface
1692 ciInstanceKlass* instance_klass() const {
1693 assert(!klass()->is_interface(), "");
1694 return klass()->as_instance_klass();
1695 }
1696
1697 bool might_be_an_array() const;
1698
1699 bool is_same_java_type_as_helper(const TypeKlassPtr* other) const;
1700 bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1701 bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1702
1703 static const TypeInstKlassPtr *make(ciKlass* k, InterfaceHandling interface_handling) {
1704 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, true, false, interface_handling);
1705 return make(TypePtr::Constant, k, interfaces, 0);
1706 }
1707 static const TypeInstKlassPtr* make(PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, int offset);
1708
1709 static const TypeInstKlassPtr* make(PTR ptr, ciKlass* k, int offset) {
1710 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1711 return make(ptr, k, interfaces, offset);
1712 }
1713
1714 virtual const TypeInstKlassPtr* cast_to_ptr_type(PTR ptr) const;
1715
1716 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const;
1717
1718 // corresponding pointer to instance, for a given class
1719 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const;
1720 virtual uint hash() const;
1721 virtual bool eq(const Type *t) const;
1722
1723 virtual const TypePtr *add_offset( intptr_t offset ) const;
1724 virtual const Type *xmeet( const Type *t ) const;
1725 virtual const Type *xdual() const;
1726 virtual const TypeInstKlassPtr* with_offset(intptr_t offset) const;
1727
1728 virtual const TypeKlassPtr* try_improve() const;
1729
1730 // Convenience common pre-built types.
1731 static const TypeInstKlassPtr* OBJECT; // Not-null object klass or below
1732 static const TypeInstKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same
1733 private:
1734 virtual bool is_meet_subtype_of_helper(const TypeKlassPtr* other, bool this_xk, bool other_xk) const;
1735 };
1736
1737 // Array klass pointer, mirrors TypeAryPtr
1738 class TypeAryKlassPtr : public TypeKlassPtr {
1739 friend class TypeInstKlassPtr;
1740 friend class Type;
1741 friend class TypePtr;
1742
1743 const Type *_elem;
1744
1745 static const TypeInterfaces* _array_interfaces;
1746 TypeAryKlassPtr(PTR ptr, const Type *elem, ciKlass* klass, int offset)
1747 : TypeKlassPtr(AryKlassPtr, ptr, klass, _array_interfaces, offset), _elem(elem) {
1748 assert(klass == nullptr || klass->is_type_array_klass() || !klass->as_obj_array_klass()->base_element_klass()->is_interface(), "");
1749 }
1750
1751 virtual ciKlass* exact_klass_helper() const;
1752 // Only guaranteed non null for array of basic types
1753 virtual ciKlass* klass() const;
1754
1755 virtual bool must_be_exact() const;
1756
1757 public:
1758
1759 // returns base element type, an instance klass (and not interface) for object arrays
1760 const Type* base_element_type(int& dims) const;
1761
1762 static const TypeAryKlassPtr *make(PTR ptr, ciKlass* k, int offset, InterfaceHandling interface_handling);
1763
1764 bool is_same_java_type_as_helper(const TypeKlassPtr* other) const;
1765 bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1766 bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1767
1768 bool is_loaded() const { return (_elem->isa_klassptr() ? _elem->is_klassptr()->is_loaded() : true); }
1769
1770 static const TypeAryKlassPtr *make(PTR ptr, const Type *elem, ciKlass* k, int offset);
1771 static const TypeAryKlassPtr* make(ciKlass* klass, InterfaceHandling interface_handling);
1772
1773 const Type *elem() const { return _elem; }
1774
1775 virtual bool eq(const Type *t) const;
1776 virtual uint hash() const; // Type specific hashing
1777
1778 virtual const TypeAryKlassPtr* cast_to_ptr_type(PTR ptr) const;
1779
1780 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const;
1781
1782 // corresponding pointer to instance, for a given class
1783 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const;
1784
1785 virtual const TypePtr *add_offset( intptr_t offset ) const;
1786 virtual const Type *xmeet( const Type *t ) const;
1787 virtual const Type *xdual() const; // Compute dual right now.
1788
1789 virtual const TypeAryKlassPtr* with_offset(intptr_t offset) const;
1790
1791 virtual bool empty(void) const {
1792 return TypeKlassPtr::empty() || _elem->empty();
1793 }
1794
1795 #ifndef PRODUCT
1796 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1797 #endif
1798 private:
1799 virtual bool is_meet_subtype_of_helper(const TypeKlassPtr* other, bool this_xk, bool other_xk) const;
1800 };
1801
1802 class TypeNarrowPtr : public Type {
1803 protected:
1804 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR
1805
1806 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): Type(t),
1807 _ptrtype(ptrtype) {
1808 assert(ptrtype->offset() == 0 ||
1809 ptrtype->offset() == OffsetBot ||
1810 ptrtype->offset() == OffsetTop, "no real offsets");
1811 }
1812
1813 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0;
1814 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0;
1815 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0;
1816 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0;
1817 // Do not allow interface-vs.-noninterface joins to collapse to top.
1818 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1819 public:
1820 virtual bool eq( const Type *t ) const;
1821 virtual uint hash() const; // Type specific hashing
1822 virtual bool singleton(void) const; // TRUE if type is a singleton
1823
1824 virtual const Type *xmeet( const Type *t ) const;
1825 virtual const Type *xdual() const; // Compute dual right now.
1826
1827 virtual intptr_t get_con() const;
1828
1829 virtual bool empty(void) const; // TRUE if type is vacuous
1830
1831 // returns the equivalent ptr type for this compressed pointer
1832 const TypePtr *get_ptrtype() const {
1833 return _ptrtype;
1834 }
1835
1836 bool is_known_instance() const {
1837 return _ptrtype->is_known_instance();
1838 }
1839
1840 #ifndef PRODUCT
1841 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1842 #endif
1843 };
1844
1845 //------------------------------TypeNarrowOop----------------------------------
1846 // A compressed reference to some kind of Oop. This type wraps around
1847 // a preexisting TypeOopPtr and forwards most of it's operations to
1848 // the underlying type. It's only real purpose is to track the
1849 // oopness of the compressed oop value when we expose the conversion
1850 // between the normal and the compressed form.
1851 class TypeNarrowOop : public TypeNarrowPtr {
1852 protected:
1853 TypeNarrowOop( const TypePtr* ptrtype): TypeNarrowPtr(NarrowOop, ptrtype) {
1854 }
1855
1856 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const {
1857 return t->isa_narrowoop();
1858 }
1859
1860 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const {
1861 return t->is_narrowoop();
1862 }
1863
1864 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const {
1865 return new TypeNarrowOop(t);
1866 }
1867
1868 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const {
1869 return (const TypeNarrowPtr*)((new TypeNarrowOop(t))->hashcons());
1870 }
1871
1872 public:
1873
1874 static const TypeNarrowOop *make( const TypePtr* type);
1875
1876 static const TypeNarrowOop* make_from_constant(ciObject* con, bool require_constant = false) {
1877 return make(TypeOopPtr::make_from_constant(con, require_constant));
1878 }
1879
1880 static const TypeNarrowOop *BOTTOM;
1881 static const TypeNarrowOop *NULL_PTR;
1882
1883 virtual const TypeNarrowOop* remove_speculative() const;
1884 virtual const Type* cleanup_speculative() const;
1885
1886 #ifndef PRODUCT
1887 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1888 #endif
1889 };
1890
1891 //------------------------------TypeNarrowKlass----------------------------------
1892 // A compressed reference to klass pointer. This type wraps around a
1893 // preexisting TypeKlassPtr and forwards most of it's operations to
1894 // the underlying type.
1895 class TypeNarrowKlass : public TypeNarrowPtr {
1896 protected:
1897 TypeNarrowKlass( const TypePtr* ptrtype): TypeNarrowPtr(NarrowKlass, ptrtype) {
1898 }
1899
1900 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const {
1901 return t->isa_narrowklass();
1902 }
1903
1904 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const {
1905 return t->is_narrowklass();
1906 }
1907
1908 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const {
1909 return new TypeNarrowKlass(t);
1910 }
1911
1912 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const {
1913 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons());
1914 }
1915
1916 public:
1917 static const TypeNarrowKlass *make( const TypePtr* type);
1918
1919 // static const TypeNarrowKlass *BOTTOM;
1920 static const TypeNarrowKlass *NULL_PTR;
1921
1922 #ifndef PRODUCT
1923 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1924 #endif
1925 };
1926
1927 //------------------------------TypeFunc---------------------------------------
1928 // Class of Array Types
1929 class TypeFunc : public Type {
1930 TypeFunc( const TypeTuple *domain, const TypeTuple *range ) : Type(Function), _domain(domain), _range(range) {}
1931 virtual bool eq( const Type *t ) const;
1932 virtual uint hash() const; // Type specific hashing
1933 virtual bool singleton(void) const; // TRUE if type is a singleton
1934 virtual bool empty(void) const; // TRUE if type is vacuous
1935
1936 const TypeTuple* const _domain; // Domain of inputs
1937 const TypeTuple* const _range; // Range of results
1938
1939 public:
1940 // Constants are shared among ADLC and VM
1941 enum { Control = AdlcVMDeps::Control,
1942 I_O = AdlcVMDeps::I_O,
1943 Memory = AdlcVMDeps::Memory,
1944 FramePtr = AdlcVMDeps::FramePtr,
1945 ReturnAdr = AdlcVMDeps::ReturnAdr,
1946 Parms = AdlcVMDeps::Parms
1947 };
1948
1949
1950 // Accessors:
1951 const TypeTuple* domain() const { return _domain; }
1952 const TypeTuple* range() const { return _range; }
1953
1954 static const TypeFunc *make(ciMethod* method);
1955 static const TypeFunc *make(ciSignature signature, const Type* extra);
1956 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range);
1957
1958 virtual const Type *xmeet( const Type *t ) const;
1959 virtual const Type *xdual() const; // Compute dual right now.
1960
1961 BasicType return_type() const;
1962
1963 #ifndef PRODUCT
1964 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1965 #endif
1966 // Convenience common pre-built types.
1967 };
1968
1969 //------------------------------accessors--------------------------------------
1970 inline bool Type::is_ptr_to_narrowoop() const {
1971 #ifdef _LP64
1972 return (isa_oopptr() != nullptr && is_oopptr()->is_ptr_to_narrowoop_nv());
1973 #else
1974 return false;
1975 #endif
1976 }
1977
1978 inline bool Type::is_ptr_to_narrowklass() const {
1979 #ifdef _LP64
1980 return (isa_oopptr() != nullptr && is_oopptr()->is_ptr_to_narrowklass_nv());
1981 #else
1982 return false;
1983 #endif
1984 }
1985
1986 inline float Type::getf() const {
1987 assert( _base == FloatCon, "Not a FloatCon" );
1988 return ((TypeF*)this)->_f;
1989 }
1990
1991 inline short Type::geth() const {
1992 assert(_base == HalfFloatCon, "Not a HalfFloatCon");
1993 return ((TypeH*)this)->_f;
1994 }
1995
1996 inline double Type::getd() const {
1997 assert( _base == DoubleCon, "Not a DoubleCon" );
1998 return ((TypeD*)this)->_d;
1999 }
2000
2001 inline const TypeInteger *Type::is_integer(BasicType bt) const {
2002 assert((bt == T_INT && _base == Int) || (bt == T_LONG && _base == Long), "Not an Int");
2003 return (TypeInteger*)this;
2004 }
2005
2006 inline const TypeInteger *Type::isa_integer(BasicType bt) const {
2007 return (((bt == T_INT && _base == Int) || (bt == T_LONG && _base == Long)) ? (TypeInteger*)this : nullptr);
2008 }
2009
2010 inline const TypeInt *Type::is_int() const {
2011 assert( _base == Int, "Not an Int" );
2012 return (TypeInt*)this;
2013 }
2014
2015 inline const TypeInt *Type::isa_int() const {
2016 return ( _base == Int ? (TypeInt*)this : nullptr);
2017 }
2018
2019 inline const TypeLong *Type::is_long() const {
2020 assert( _base == Long, "Not a Long" );
2021 return (TypeLong*)this;
2022 }
2023
2024 inline const TypeLong *Type::isa_long() const {
2025 return ( _base == Long ? (TypeLong*)this : nullptr);
2026 }
2027
2028 inline const TypeH* Type::isa_half_float() const {
2029 return ((_base == HalfFloatTop ||
2030 _base == HalfFloatCon ||
2031 _base == HalfFloatBot) ? (TypeH*)this : nullptr);
2032 }
2033
2034 inline const TypeH* Type::is_half_float_constant() const {
2035 assert( _base == HalfFloatCon, "Not a HalfFloat" );
2036 return (TypeH*)this;
2037 }
2038
2039 inline const TypeH* Type::isa_half_float_constant() const {
2040 return (_base == HalfFloatCon ? (TypeH*)this : nullptr);
2041 }
2042
2043 inline const TypeF *Type::isa_float() const {
2044 return ((_base == FloatTop ||
2045 _base == FloatCon ||
2046 _base == FloatBot) ? (TypeF*)this : nullptr);
2047 }
2048
2049 inline const TypeF *Type::is_float_constant() const {
2050 assert( _base == FloatCon, "Not a Float" );
2051 return (TypeF*)this;
2052 }
2053
2054 inline const TypeF *Type::isa_float_constant() const {
2055 return ( _base == FloatCon ? (TypeF*)this : nullptr);
2056 }
2057
2058 inline const TypeD *Type::isa_double() const {
2059 return ((_base == DoubleTop ||
2060 _base == DoubleCon ||
2061 _base == DoubleBot) ? (TypeD*)this : nullptr);
2062 }
2063
2064 inline const TypeD *Type::is_double_constant() const {
2065 assert( _base == DoubleCon, "Not a Double" );
2066 return (TypeD*)this;
2067 }
2068
2069 inline const TypeD *Type::isa_double_constant() const {
2070 return ( _base == DoubleCon ? (TypeD*)this : nullptr);
2071 }
2072
2073 inline const TypeTuple *Type::is_tuple() const {
2074 assert( _base == Tuple, "Not a Tuple" );
2075 return (TypeTuple*)this;
2076 }
2077
2078 inline const TypeAry *Type::is_ary() const {
2079 assert( _base == Array , "Not an Array" );
2080 return (TypeAry*)this;
2081 }
2082
2083 inline const TypeAry *Type::isa_ary() const {
2084 return ((_base == Array) ? (TypeAry*)this : nullptr);
2085 }
2086
2087 inline const TypeVectMask *Type::is_vectmask() const {
2088 assert( _base == VectorMask, "Not a Vector Mask" );
2089 return (TypeVectMask*)this;
2090 }
2091
2092 inline const TypeVectMask *Type::isa_vectmask() const {
2093 return (_base == VectorMask) ? (TypeVectMask*)this : nullptr;
2094 }
2095
2096 inline const TypeVect *Type::is_vect() const {
2097 assert( _base >= VectorMask && _base <= VectorZ, "Not a Vector" );
2098 return (TypeVect*)this;
2099 }
2100
2101 inline const TypeVect *Type::isa_vect() const {
2102 return (_base >= VectorMask && _base <= VectorZ) ? (TypeVect*)this : nullptr;
2103 }
2104
2105 inline const TypePtr *Type::is_ptr() const {
2106 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between.
2107 assert(_base >= AnyPtr && _base <= AryKlassPtr, "Not a pointer");
2108 return (TypePtr*)this;
2109 }
2110
2111 inline const TypePtr *Type::isa_ptr() const {
2112 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between.
2113 return (_base >= AnyPtr && _base <= AryKlassPtr) ? (TypePtr*)this : nullptr;
2114 }
2115
2116 inline const TypeOopPtr *Type::is_oopptr() const {
2117 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2118 assert(_base >= OopPtr && _base <= AryPtr, "Not a Java pointer" ) ;
2119 return (TypeOopPtr*)this;
2120 }
2121
2122 inline const TypeOopPtr *Type::isa_oopptr() const {
2123 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2124 return (_base >= OopPtr && _base <= AryPtr) ? (TypeOopPtr*)this : nullptr;
2125 }
2126
2127 inline const TypeRawPtr *Type::isa_rawptr() const {
2128 return (_base == RawPtr) ? (TypeRawPtr*)this : nullptr;
2129 }
2130
2131 inline const TypeRawPtr *Type::is_rawptr() const {
2132 assert( _base == RawPtr, "Not a raw pointer" );
2133 return (TypeRawPtr*)this;
2134 }
2135
2136 inline const TypeInstPtr *Type::isa_instptr() const {
2137 return (_base == InstPtr) ? (TypeInstPtr*)this : nullptr;
2138 }
2139
2140 inline const TypeInstPtr *Type::is_instptr() const {
2141 assert( _base == InstPtr, "Not an object pointer" );
2142 return (TypeInstPtr*)this;
2143 }
2144
2145 inline const TypeAryPtr *Type::isa_aryptr() const {
2146 return (_base == AryPtr) ? (TypeAryPtr*)this : nullptr;
2147 }
2148
2149 inline const TypeAryPtr *Type::is_aryptr() const {
2150 assert( _base == AryPtr, "Not an array pointer" );
2151 return (TypeAryPtr*)this;
2152 }
2153
2154 inline const TypeNarrowOop *Type::is_narrowoop() const {
2155 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2156 assert(_base == NarrowOop, "Not a narrow oop" ) ;
2157 return (TypeNarrowOop*)this;
2158 }
2159
2160 inline const TypeNarrowOop *Type::isa_narrowoop() const {
2161 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2162 return (_base == NarrowOop) ? (TypeNarrowOop*)this : nullptr;
2163 }
2164
2165 inline const TypeNarrowKlass *Type::is_narrowklass() const {
2166 assert(_base == NarrowKlass, "Not a narrow oop" ) ;
2167 return (TypeNarrowKlass*)this;
2168 }
2169
2170 inline const TypeNarrowKlass *Type::isa_narrowklass() const {
2171 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : nullptr;
2172 }
2173
2174 inline const TypeMetadataPtr *Type::is_metadataptr() const {
2175 // MetadataPtr is the first and CPCachePtr the last
2176 assert(_base == MetadataPtr, "Not a metadata pointer" ) ;
2177 return (TypeMetadataPtr*)this;
2178 }
2179
2180 inline const TypeMetadataPtr *Type::isa_metadataptr() const {
2181 return (_base == MetadataPtr) ? (TypeMetadataPtr*)this : nullptr;
2182 }
2183
2184 inline const TypeKlassPtr *Type::isa_klassptr() const {
2185 return (_base >= KlassPtr && _base <= AryKlassPtr ) ? (TypeKlassPtr*)this : nullptr;
2186 }
2187
2188 inline const TypeKlassPtr *Type::is_klassptr() const {
2189 assert(_base >= KlassPtr && _base <= AryKlassPtr, "Not a klass pointer");
2190 return (TypeKlassPtr*)this;
2191 }
2192
2193 inline const TypeInstKlassPtr *Type::isa_instklassptr() const {
2194 return (_base == InstKlassPtr) ? (TypeInstKlassPtr*)this : nullptr;
2195 }
2196
2197 inline const TypeInstKlassPtr *Type::is_instklassptr() const {
2198 assert(_base == InstKlassPtr, "Not a klass pointer");
2199 return (TypeInstKlassPtr*)this;
2200 }
2201
2202 inline const TypeAryKlassPtr *Type::isa_aryklassptr() const {
2203 return (_base == AryKlassPtr) ? (TypeAryKlassPtr*)this : nullptr;
2204 }
2205
2206 inline const TypeAryKlassPtr *Type::is_aryklassptr() const {
2207 assert(_base == AryKlassPtr, "Not a klass pointer");
2208 return (TypeAryKlassPtr*)this;
2209 }
2210
2211 inline const TypePtr* Type::make_ptr() const {
2212 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() :
2213 ((_base == NarrowKlass) ? is_narrowklass()->get_ptrtype() :
2214 isa_ptr());
2215 }
2216
2217 inline const TypeOopPtr* Type::make_oopptr() const {
2218 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->isa_oopptr() : isa_oopptr();
2219 }
2220
2221 inline const TypeNarrowOop* Type::make_narrowoop() const {
2222 return (_base == NarrowOop) ? is_narrowoop() :
2223 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : nullptr);
2224 }
2225
2226 inline const TypeNarrowKlass* Type::make_narrowklass() const {
2227 return (_base == NarrowKlass) ? is_narrowklass() :
2228 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : nullptr);
2229 }
2230
2231 inline bool Type::is_floatingpoint() const {
2232 if( (_base == HalfFloatCon) || (_base == HalfFloatBot) ||
2233 (_base == FloatCon) || (_base == FloatBot) ||
2234 (_base == DoubleCon) || (_base == DoubleBot) )
2235 return true;
2236 return false;
2237 }
2238
2239 template <>
2240 inline const TypeInt* Type::cast<TypeInt>() const {
2241 return is_int();
2242 }
2243
2244 template <>
2245 inline const TypeLong* Type::cast<TypeLong>() const {
2246 return is_long();
2247 }
2248
2249 // ===============================================================
2250 // Things that need to be 64-bits in the 64-bit build but
2251 // 32-bits in the 32-bit build. Done this way to get full
2252 // optimization AND strong typing.
2253 #ifdef _LP64
2254
2255 // For type queries and asserts
2256 #define is_intptr_t is_long
2257 #define isa_intptr_t isa_long
2258 #define find_intptr_t_type find_long_type
2259 #define find_intptr_t_con find_long_con
2260 #define TypeX TypeLong
2261 #define Type_X Type::Long
2262 #define TypeX_X TypeLong::LONG
2263 #define TypeX_ZERO TypeLong::ZERO
2264 // For 'ideal_reg' machine registers
2265 #define Op_RegX Op_RegL
2266 // For phase->intcon variants
2267 #define MakeConX longcon
2268 #define ConXNode ConLNode
2269 // For array index arithmetic
2270 #define MulXNode MulLNode
2271 #define AndXNode AndLNode
2272 #define OrXNode OrLNode
2273 #define CmpXNode CmpLNode
2274 #define SubXNode SubLNode
2275 #define LShiftXNode LShiftLNode
2276 // For object size computation:
2277 #define AddXNode AddLNode
2278 #define RShiftXNode RShiftLNode
2279 // For card marks and hashcodes
2280 #define URShiftXNode URShiftLNode
2281 // For shenandoahSupport
2282 #define LoadXNode LoadLNode
2283 #define StoreXNode StoreLNode
2284 // Opcodes
2285 #define Op_LShiftX Op_LShiftL
2286 #define Op_AndX Op_AndL
2287 #define Op_AddX Op_AddL
2288 #define Op_SubX Op_SubL
2289 #define Op_XorX Op_XorL
2290 #define Op_URShiftX Op_URShiftL
2291 #define Op_LoadX Op_LoadL
2292 // conversions
2293 #define ConvI2X(x) ConvI2L(x)
2294 #define ConvL2X(x) (x)
2295 #define ConvX2I(x) ConvL2I(x)
2296 #define ConvX2L(x) (x)
2297 #define ConvX2UL(x) (x)
2298
2299 #else
2300
2301 // For type queries and asserts
2302 #define is_intptr_t is_int
2303 #define isa_intptr_t isa_int
2304 #define find_intptr_t_type find_int_type
2305 #define find_intptr_t_con find_int_con
2306 #define TypeX TypeInt
2307 #define Type_X Type::Int
2308 #define TypeX_X TypeInt::INT
2309 #define TypeX_ZERO TypeInt::ZERO
2310 // For 'ideal_reg' machine registers
2311 #define Op_RegX Op_RegI
2312 // For phase->intcon variants
2313 #define MakeConX intcon
2314 #define ConXNode ConINode
2315 // For array index arithmetic
2316 #define MulXNode MulINode
2317 #define AndXNode AndINode
2318 #define OrXNode OrINode
2319 #define CmpXNode CmpINode
2320 #define SubXNode SubINode
2321 #define LShiftXNode LShiftINode
2322 // For object size computation:
2323 #define AddXNode AddINode
2324 #define RShiftXNode RShiftINode
2325 // For card marks and hashcodes
2326 #define URShiftXNode URShiftINode
2327 // For shenandoahSupport
2328 #define LoadXNode LoadINode
2329 #define StoreXNode StoreINode
2330 // Opcodes
2331 #define Op_LShiftX Op_LShiftI
2332 #define Op_AndX Op_AndI
2333 #define Op_AddX Op_AddI
2334 #define Op_SubX Op_SubI
2335 #define Op_XorX Op_XorI
2336 #define Op_URShiftX Op_URShiftI
2337 #define Op_LoadX Op_LoadI
2338 // conversions
2339 #define ConvI2X(x) (x)
2340 #define ConvL2X(x) ConvL2I(x)
2341 #define ConvX2I(x) (x)
2342 #define ConvX2L(x) ConvI2L(x)
2343 #define ConvX2UL(x) ConvI2UL(x)
2344
2345 #endif
2346
2347 #endif // SHARE_OPTO_TYPE_HPP