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.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
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 // This is used as a marker to identify narrow Klass* loads, which
199 // are really extracted from the mark-word, but we still want to
200 // distinguish it.
201 static int klass_offset() {
202 if (UseCompactObjectHeaders) {
203 return 1;
204 } else {
205 return oopDesc::klass_offset_in_bytes();
206 }
207 }
208
209 inline void* operator new( size_t x ) throw() {
210 Compile* compile = Compile::current();
211 compile->set_type_last_size(x);
212 return compile->type_arena()->AmallocWords(x);
213 }
214 inline void operator delete( void* ptr ) {
215 Compile* compile = Compile::current();
216 compile->type_arena()->Afree(ptr,compile->type_last_size());
217 }
218
219 // Initialize the type system for a particular compilation.
220 static void Initialize(Compile* compile);
221
222 // Initialize the types shared by all compilations.
223 static void Initialize_shared(Compile* compile);
224
225 TYPES base() const {
226 assert(_base > Bad && _base < lastype, "sanity");
227 return _base;
228 }
229
230 // Create a new hash-consd type
231 static const Type *make(enum TYPES);
232 // Test for equivalence of types
233 static bool equals(const Type* t1, const Type* t2);
234 // Test for higher or equal in lattice
235 // Variant that drops the speculative part of the types
236 bool higher_equal(const Type* t) const {
237 return equals(meet(t), t->remove_speculative());
238 }
239 // Variant that keeps the speculative part of the types
240 bool higher_equal_speculative(const Type* t) const {
241 return equals(meet_speculative(t), t);
242 }
243
244 // MEET operation; lower in lattice.
245 // Variant that drops the speculative part of the types
246 const Type *meet(const Type *t) const {
247 return meet_helper(t, false);
248 }
249 // Variant that keeps the speculative part of the types
250 const Type *meet_speculative(const Type *t) const {
251 return meet_helper(t, true)->cleanup_speculative();
252 }
253 // WIDEN: 'widens' for Ints and other range types
254 virtual const Type *widen( const Type *old, const Type* limit ) const { return this; }
255 // NARROW: complement for widen, used by pessimistic phases
256 virtual const Type *narrow( const Type *old ) const { return this; }
257
258 // DUAL operation: reflect around lattice centerline. Used instead of
259 // join to ensure my lattice is symmetric up and down.
260 const Type *dual() const { return _dual; }
261
262 // Compute meet dependent on base type
263 virtual const Type *xmeet( const Type *t ) const;
264 virtual const Type *xdual() const; // Compute dual right now.
265
266 // JOIN operation; higher in lattice. Done by finding the dual of the
267 // meet of the dual of the 2 inputs.
268 // Variant that drops the speculative part of the types
269 const Type *join(const Type *t) const {
270 return join_helper(t, false);
271 }
272 // Variant that keeps the speculative part of the types
273 const Type *join_speculative(const Type *t) const {
274 return join_helper(t, true)->cleanup_speculative();
275 }
276
277 // Modified version of JOIN adapted to the needs Node::Value.
278 // Normalizes all empty values to TOP. Does not kill _widen bits.
279 // Variant that drops the speculative part of the types
280 const Type *filter(const Type *kills) const {
281 return filter_helper(kills, false);
282 }
283 // Variant that keeps the speculative part of the types
284 const Type *filter_speculative(const Type *kills) const {
285 return filter_helper(kills, true)->cleanup_speculative();
286 }
287
288 // Returns true if this pointer points at memory which contains a
289 // compressed oop references.
290 bool is_ptr_to_narrowoop() const;
291 bool is_ptr_to_narrowklass() const;
292
293 // Convenience access
294 short geth() const;
295 virtual float getf() const;
296 double getd() const;
297
298 const TypeInt *is_int() const;
299 const TypeInt *isa_int() const; // Returns null if not an Int
300 const TypeInteger* is_integer(BasicType bt) const;
301 const TypeInteger* isa_integer(BasicType bt) const;
302 const TypeLong *is_long() const;
303 const TypeLong *isa_long() const; // Returns null if not a Long
304 const TypeD *isa_double() const; // Returns null if not a Double{Top,Con,Bot}
305 const TypeD *is_double_constant() const; // Asserts it is a DoubleCon
306 const TypeD *isa_double_constant() const; // Returns null if not a DoubleCon
307 const TypeH *isa_half_float() const; // Returns null if not a Float{Top,Con,Bot}
308 const TypeH *is_half_float_constant() const; // Asserts it is a FloatCon
309 const TypeH *isa_half_float_constant() const; // Returns null if not a FloatCon
310 const TypeF *isa_float() const; // Returns null if not a Float{Top,Con,Bot}
311 const TypeF *is_float_constant() const; // Asserts it is a FloatCon
312 const TypeF *isa_float_constant() const; // Returns null if not a FloatCon
313 const TypeTuple *is_tuple() const; // Collection of fields, NOT a pointer
314 const TypeAry *is_ary() const; // Array, NOT array pointer
315 const TypeAry *isa_ary() const; // Returns null of not ary
316 const TypeVect *is_vect() const; // Vector
317 const TypeVect *isa_vect() const; // Returns null if not a Vector
318 const TypeVectMask *is_vectmask() const; // Predicate/Mask Vector
319 const TypeVectMask *isa_vectmask() const; // Returns null if not a Vector Predicate/Mask
320 const TypePtr *is_ptr() const; // Asserts it is a ptr type
321 const TypePtr *isa_ptr() const; // Returns null if not ptr type
322 const TypeRawPtr *isa_rawptr() const; // NOT Java oop
323 const TypeRawPtr *is_rawptr() const; // Asserts is rawptr
324 const TypeNarrowOop *is_narrowoop() const; // Java-style GC'd pointer
325 const TypeNarrowOop *isa_narrowoop() const; // Returns null if not oop ptr type
326 const TypeNarrowKlass *is_narrowklass() const; // compressed klass pointer
327 const TypeNarrowKlass *isa_narrowklass() const;// Returns null if not oop ptr type
328 const TypeOopPtr *isa_oopptr() const; // Returns null if not oop ptr type
329 const TypeOopPtr *is_oopptr() const; // Java-style GC'd pointer
330 const TypeInstPtr *isa_instptr() const; // Returns null if not InstPtr
331 const TypeInstPtr *is_instptr() const; // Instance
332 const TypeAryPtr *isa_aryptr() const; // Returns null if not AryPtr
333 const TypeAryPtr *is_aryptr() const; // Array oop
334
335 template <typename TypeClass>
336 const TypeClass* cast() const;
337
338 const TypeMetadataPtr *isa_metadataptr() const; // Returns null if not oop ptr type
339 const TypeMetadataPtr *is_metadataptr() const; // Java-style GC'd pointer
340 const TypeKlassPtr *isa_klassptr() const; // Returns null if not KlassPtr
341 const TypeKlassPtr *is_klassptr() const; // assert if not KlassPtr
342 const TypeInstKlassPtr *isa_instklassptr() const; // Returns null if not IntKlassPtr
343 const TypeInstKlassPtr *is_instklassptr() const; // assert if not IntKlassPtr
344 const TypeAryKlassPtr *isa_aryklassptr() const; // Returns null if not AryKlassPtr
345 const TypeAryKlassPtr *is_aryklassptr() const; // assert if not AryKlassPtr
346
347 virtual bool is_finite() const; // Has a finite value
348 virtual bool is_nan() const; // Is not a number (NaN)
349
350 // Returns this ptr type or the equivalent ptr type for this compressed pointer.
351 const TypePtr* make_ptr() const;
352
353 // Returns this oopptr type or the equivalent oopptr type for this compressed pointer.
354 // Asserts if the underlying type is not an oopptr or narrowoop.
355 const TypeOopPtr* make_oopptr() const;
356
357 // Returns this compressed pointer or the equivalent compressed version
358 // of this pointer type.
359 const TypeNarrowOop* make_narrowoop() const;
360
361 // Returns this compressed klass pointer or the equivalent
362 // compressed version of this pointer type.
363 const TypeNarrowKlass* make_narrowklass() const;
364
365 // Special test for register pressure heuristic
366 bool is_floatingpoint() const; // True if Float or Double base type
367
368 // Do you have memory, directly or through a tuple?
369 bool has_memory( ) const;
370
371 // TRUE if type is a singleton
372 virtual bool singleton(void) const;
373
374 // TRUE if type is above the lattice centerline, and is therefore vacuous
375 virtual bool empty(void) const;
376
377 // Return a hash for this type. The hash function is public so ConNode
378 // (constants) can hash on their constant, which is represented by a Type.
379 virtual uint hash() const;
380
381 // Map ideal registers (machine types) to ideal types
382 static const Type *mreg2type[];
383
384 // Printing, statistics
385 #ifndef PRODUCT
386 void dump_on(outputStream *st) const;
387 void dump() const {
388 dump_on(tty);
389 }
390 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
391 static void dump_stats();
392 // Groups of types, for debugging and visualization only.
393 enum class Category {
394 Data,
395 Memory,
396 Mixed, // Tuples with types of different categories.
397 Control,
398 Other, // {Type::Top, Type::Abio, Type::Bottom}.
399 Undef // {Type::Bad, Type::lastype}, for completeness.
400 };
401 // Return the category of this type.
402 Category category() const;
403 // Check recursively in tuples.
404 bool has_category(Category cat) const;
405
406 static const char* str(const Type* t);
407 #endif // !PRODUCT
408 void typerr(const Type *t) const; // Mixing types error
409
410 // Create basic type
411 static const Type* get_const_basic_type(BasicType type) {
412 assert((uint)type <= T_CONFLICT && _const_basic_type[type] != nullptr, "bad type");
413 return _const_basic_type[type];
414 }
415
416 // For two instance arrays of same dimension, return the base element types.
417 // Otherwise or if the arrays have different dimensions, return null.
418 static void get_arrays_base_elements(const Type *a1, const Type *a2,
419 const TypeInstPtr **e1, const TypeInstPtr **e2);
420
421 // Mapping to the array element's basic type.
422 BasicType array_element_basic_type() const;
423
424 enum InterfaceHandling {
425 trust_interfaces,
426 ignore_interfaces
427 };
428 // Create standard type for a ciType:
429 static const Type* get_const_type(ciType* type, InterfaceHandling interface_handling = ignore_interfaces);
430
431 // Create standard zero value:
432 static const Type* get_zero_type(BasicType type) {
433 assert((uint)type <= T_CONFLICT && _zero_type[type] != nullptr, "bad type");
434 return _zero_type[type];
435 }
436
437 // Report if this is a zero value (not top).
438 bool is_zero_type() const {
439 BasicType type = basic_type();
440 if (type == T_VOID || type >= T_CONFLICT)
441 return false;
442 else
443 return (this == _zero_type[type]);
444 }
445
446 // Convenience common pre-built types.
447 static const Type *ABIO;
448 static const Type *BOTTOM;
449 static const Type *CONTROL;
450 static const Type *DOUBLE;
451 static const Type *FLOAT;
452 static const Type *HALF_FLOAT;
453 static const Type *HALF;
454 static const Type *MEMORY;
455 static const Type *MULTI;
456 static const Type *RETURN_ADDRESS;
457 static const Type *TOP;
458
459 // Mapping from compiler type to VM BasicType
460 BasicType basic_type() const { return _type_info[_base].basic_type; }
461 uint ideal_reg() const { return _type_info[_base].ideal_reg; }
462 const char* msg() const { return _type_info[_base].msg; }
463 bool isa_oop_ptr() const { return _type_info[_base].isa_oop; }
464 relocInfo::relocType reloc() const { return _type_info[_base].reloc; }
465
466 // Mapping from CI type system to compiler type:
467 static const Type* get_typeflow_type(ciType* type);
468
469 static const Type* make_from_constant(ciConstant constant,
470 bool require_constant = false,
471 int stable_dimension = 0,
472 bool is_narrow = false,
473 bool is_autobox_cache = false);
474
475 static const Type* make_constant_from_field(ciInstance* holder,
476 int off,
477 bool is_unsigned_load,
478 BasicType loadbt);
479
480 static const Type* make_constant_from_field(ciField* field,
481 ciInstance* holder,
482 BasicType loadbt,
483 bool is_unsigned_load);
484
485 static const Type* make_constant_from_array_element(ciArray* array,
486 int off,
487 int stable_dimension,
488 BasicType loadbt,
489 bool is_unsigned_load);
490
491 // Speculative type helper methods. See TypePtr.
492 virtual const TypePtr* speculative() const { return nullptr; }
493 virtual ciKlass* speculative_type() const { return nullptr; }
494 virtual ciKlass* speculative_type_not_null() const { return nullptr; }
495 virtual bool speculative_maybe_null() const { return true; }
496 virtual bool speculative_always_null() const { return true; }
497 virtual const Type* remove_speculative() const { return this; }
498 virtual const Type* cleanup_speculative() const { return this; }
499 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const { return exact_kls != nullptr; }
500 virtual bool would_improve_ptr(ProfilePtrKind ptr_kind) const { return ptr_kind == ProfileAlwaysNull || ptr_kind == ProfileNeverNull; }
501 const Type* maybe_remove_speculative(bool include_speculative) const;
502
503 virtual bool maybe_null() const { return true; }
504 virtual bool is_known_instance() const { return false; }
505
506 private:
507 // support arrays
508 static const Type* _zero_type[T_CONFLICT+1];
509 static const Type* _const_basic_type[T_CONFLICT+1];
510 };
511
512 //------------------------------TypeF------------------------------------------
513 // Class of Float-Constant Types.
514 class TypeF : public Type {
515 TypeF( float f ) : Type(FloatCon), _f(f) {};
516 public:
517 virtual bool eq( const Type *t ) const;
518 virtual uint hash() const; // Type specific hashing
519 virtual bool singleton(void) const; // TRUE if type is a singleton
520 virtual bool empty(void) const; // TRUE if type is vacuous
521 public:
522 const float _f; // Float constant
523
524 static const TypeF *make(float f);
525
526 virtual bool is_finite() const; // Has a finite value
527 virtual bool is_nan() const; // Is not a number (NaN)
528
529 virtual const Type *xmeet( const Type *t ) const;
530 virtual const Type *xdual() const; // Compute dual right now.
531 // Convenience common pre-built types.
532 static const TypeF *MAX;
533 static const TypeF *MIN;
534 static const TypeF *ZERO; // positive zero only
535 static const TypeF *ONE;
536 static const TypeF *POS_INF;
537 static const TypeF *NEG_INF;
538 #ifndef PRODUCT
539 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
540 #endif
541 };
542
543 // Class of Half Float-Constant Types.
544 class TypeH : public Type {
545 TypeH(short f) : Type(HalfFloatCon), _f(f) {};
546 public:
547 virtual bool eq(const Type* t) const;
548 virtual uint hash() const; // Type specific hashing
549 virtual bool singleton(void) const; // TRUE if type is a singleton
550 virtual bool empty(void) const; // TRUE if type is vacuous
551 public:
552 const short _f; // Half Float constant
553
554 static const TypeH* make(float f);
555 static const TypeH* make(short f);
556
557 virtual bool is_finite() const; // Has a finite value
558 virtual bool is_nan() const; // Is not a number (NaN)
559
560 virtual float getf() const;
561 virtual const Type* xmeet(const Type* t) const;
562 virtual const Type* xdual() const; // Compute dual right now.
563 // Convenience common pre-built types.
564 static const TypeH* MAX;
565 static const TypeH* MIN;
566 static const TypeH* ZERO; // positive zero only
567 static const TypeH* ONE;
568 static const TypeH* POS_INF;
569 static const TypeH* NEG_INF;
570 #ifndef PRODUCT
571 virtual void dump2(Dict &d, uint depth, outputStream* st) const;
572 #endif
573 };
574
575 //------------------------------TypeD------------------------------------------
576 // Class of Double-Constant Types.
577 class TypeD : public Type {
578 TypeD( double d ) : Type(DoubleCon), _d(d) {};
579 public:
580 virtual bool eq( const Type *t ) const;
581 virtual uint hash() const; // Type specific hashing
582 virtual bool singleton(void) const; // TRUE if type is a singleton
583 virtual bool empty(void) const; // TRUE if type is vacuous
584 public:
585 const double _d; // Double constant
586
587 static const TypeD *make(double d);
588
589 virtual bool is_finite() const; // Has a finite value
590 virtual bool is_nan() const; // Is not a number (NaN)
591
592 virtual const Type *xmeet( const Type *t ) const;
593 virtual const Type *xdual() const; // Compute dual right now.
594 // Convenience common pre-built types.
595 static const TypeD *MAX;
596 static const TypeD *MIN;
597 static const TypeD *ZERO; // positive zero only
598 static const TypeD *ONE;
599 static const TypeD *POS_INF;
600 static const TypeD *NEG_INF;
601 #ifndef PRODUCT
602 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
603 #endif
604 };
605
606 class TypeInteger : public Type {
607 protected:
608 TypeInteger(TYPES t, int w) : Type(t), _widen(w) {}
609
610 public:
611 const short _widen; // Limit on times we widen this sucker
612
613 virtual jlong hi_as_long() const = 0;
614 virtual jlong lo_as_long() const = 0;
615 jlong get_con_as_long(BasicType bt) const;
616 bool is_con() const { return lo_as_long() == hi_as_long(); }
617 virtual short widen_limit() const { return _widen; }
618
619 static const TypeInteger* make(jlong lo, jlong hi, int w, BasicType bt);
620 static const TypeInteger* make(jlong con, BasicType bt);
621
622 static const TypeInteger* bottom(BasicType type);
623 static const TypeInteger* zero(BasicType type);
624 static const TypeInteger* one(BasicType type);
625 static const TypeInteger* minus_1(BasicType type);
626 };
627
628
629
630 //------------------------------TypeInt----------------------------------------
631 // Class of integer ranges, the set of integers between a lower bound and an
632 // upper bound, inclusive.
633 class TypeInt : public TypeInteger {
634 TypeInt( jint lo, jint hi, int w );
635 protected:
636 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
637
638 public:
639 typedef jint NativeType;
640 virtual bool eq( const Type *t ) const;
641 virtual uint hash() const; // Type specific hashing
642 virtual bool singleton(void) const; // TRUE if type is a singleton
643 virtual bool empty(void) const; // TRUE if type is vacuous
644 const jint _lo, _hi; // Lower bound, upper bound
645
646 static const TypeInt *make(jint lo);
647 // must always specify w
648 static const TypeInt *make(jint lo, jint hi, int w);
649
650 // Check for single integer
651 bool is_con() const { return _lo==_hi; }
652 bool is_con(jint i) const { return is_con() && _lo == i; }
653 jint get_con() const { assert(is_con(), "" ); return _lo; }
654
655 virtual bool is_finite() const; // Has a finite value
656
657 virtual const Type *xmeet( const Type *t ) const;
658 virtual const Type *xdual() const; // Compute dual right now.
659 virtual const Type *widen( const Type *t, const Type* limit_type ) const;
660 virtual const Type *narrow( const Type *t ) const;
661
662 virtual jlong hi_as_long() const { return _hi; }
663 virtual jlong lo_as_long() const { return _lo; }
664
665 // Do not kill _widen bits.
666 // Convenience common pre-built types.
667 static const TypeInt *MAX;
668 static const TypeInt *MIN;
669 static const TypeInt *MINUS_1;
670 static const TypeInt *ZERO;
671 static const TypeInt *ONE;
672 static const TypeInt *BOOL;
673 static const TypeInt *CC;
674 static const TypeInt *CC_LT; // [-1] == MINUS_1
675 static const TypeInt *CC_GT; // [1] == ONE
676 static const TypeInt *CC_EQ; // [0] == ZERO
677 static const TypeInt *CC_LE; // [-1,0]
678 static const TypeInt *CC_GE; // [0,1] == BOOL (!)
679 static const TypeInt *BYTE;
680 static const TypeInt *UBYTE;
681 static const TypeInt *CHAR;
682 static const TypeInt *SHORT;
683 static const TypeInt *POS;
684 static const TypeInt *POS1;
685 static const TypeInt *INT;
686 static const TypeInt *SYMINT; // symmetric range [-max_jint..max_jint]
687 static const TypeInt *TYPE_DOMAIN; // alias for TypeInt::INT
688
689 static const TypeInt *as_self(const Type *t) { return t->is_int(); }
690 #ifndef PRODUCT
691 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
692 #endif
693 };
694
695
696 //------------------------------TypeLong---------------------------------------
697 // Class of long integer ranges, the set of integers between a lower bound and
698 // an upper bound, inclusive.
699 class TypeLong : public TypeInteger {
700 TypeLong( jlong lo, jlong hi, int w );
701 protected:
702 // Do not kill _widen bits.
703 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
704 public:
705 typedef jlong NativeType;
706 virtual bool eq( const Type *t ) const;
707 virtual uint hash() const; // Type specific hashing
708 virtual bool singleton(void) const; // TRUE if type is a singleton
709 virtual bool empty(void) const; // TRUE if type is vacuous
710 public:
711 const jlong _lo, _hi; // Lower bound, upper bound
712
713 static const TypeLong *make(jlong lo);
714 // must always specify w
715 static const TypeLong *make(jlong lo, jlong hi, int w);
716
717 // Check for single integer
718 bool is_con() const { return _lo==_hi; }
719 bool is_con(jlong i) const { return is_con() && _lo == i; }
720 jlong get_con() const { assert(is_con(), "" ); return _lo; }
721
722 // Check for positive 32-bit value.
723 int is_positive_int() const { return _lo >= 0 && _hi <= (jlong)max_jint; }
724
725 virtual bool is_finite() const; // Has a finite value
726
727 virtual jlong hi_as_long() const { return _hi; }
728 virtual jlong lo_as_long() const { return _lo; }
729
730 virtual const Type *xmeet( const Type *t ) const;
731 virtual const Type *xdual() const; // Compute dual right now.
732 virtual const Type *widen( const Type *t, const Type* limit_type ) const;
733 virtual const Type *narrow( const Type *t ) const;
734 // Convenience common pre-built types.
735 static const TypeLong *MAX;
736 static const TypeLong *MIN;
737 static const TypeLong *MINUS_1;
738 static const TypeLong *ZERO;
739 static const TypeLong *ONE;
740 static const TypeLong *POS;
741 static const TypeLong *LONG;
742 static const TypeLong *INT; // 32-bit subrange [min_jint..max_jint]
743 static const TypeLong *UINT; // 32-bit unsigned [0..max_juint]
744 static const TypeLong *TYPE_DOMAIN; // alias for TypeLong::LONG
745
746 // static convenience methods.
747 static const TypeLong *as_self(const Type *t) { return t->is_long(); }
748
749 #ifndef PRODUCT
750 virtual void dump2( Dict &d, uint, outputStream *st ) const;// Specialized per-Type dumping
751 #endif
752 };
753
754 //------------------------------TypeTuple--------------------------------------
755 // Class of Tuple Types, essentially type collections for function signatures
756 // and class layouts. It happens to also be a fast cache for the HotSpot
757 // signature types.
758 class TypeTuple : public Type {
759 TypeTuple( uint cnt, const Type **fields ) : Type(Tuple), _cnt(cnt), _fields(fields) { }
760
761 const uint _cnt; // Count of fields
762 const Type ** const _fields; // Array of field types
763
764 public:
765 virtual bool eq( const Type *t ) const;
766 virtual uint hash() const; // Type specific hashing
767 virtual bool singleton(void) const; // TRUE if type is a singleton
768 virtual bool empty(void) const; // TRUE if type is vacuous
769
770 // Accessors:
771 uint cnt() const { return _cnt; }
772 const Type* field_at(uint i) const {
773 assert(i < _cnt, "oob");
774 return _fields[i];
775 }
776 void set_field_at(uint i, const Type* t) {
777 assert(i < _cnt, "oob");
778 _fields[i] = t;
779 }
780
781 static const TypeTuple *make( uint cnt, const Type **fields );
782 static const TypeTuple *make_range(ciSignature *sig, InterfaceHandling interface_handling = ignore_interfaces);
783 static const TypeTuple *make_domain(ciInstanceKlass* recv, ciSignature *sig, InterfaceHandling interface_handling);
784
785 // Subroutine call type with space allocated for argument types
786 // Memory for Control, I_O, Memory, FramePtr, and ReturnAdr is allocated implicitly
787 static const Type **fields( uint arg_cnt );
788
789 virtual const Type *xmeet( const Type *t ) const;
790 virtual const Type *xdual() const; // Compute dual right now.
791 // Convenience common pre-built types.
792 static const TypeTuple *IFBOTH;
793 static const TypeTuple *IFFALSE;
794 static const TypeTuple *IFTRUE;
795 static const TypeTuple *IFNEITHER;
796 static const TypeTuple *LOOPBODY;
797 static const TypeTuple *MEMBAR;
798 static const TypeTuple *STORECONDITIONAL;
799 static const TypeTuple *START_I2C;
800 static const TypeTuple *INT_PAIR;
801 static const TypeTuple *LONG_PAIR;
802 static const TypeTuple *INT_CC_PAIR;
803 static const TypeTuple *LONG_CC_PAIR;
804 #ifndef PRODUCT
805 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping
806 #endif
807 };
808
809 //------------------------------TypeAry----------------------------------------
810 // Class of Array Types
811 class TypeAry : public Type {
812 TypeAry(const Type* elem, const TypeInt* size, bool stable) : Type(Array),
813 _elem(elem), _size(size), _stable(stable) {}
814 public:
815 virtual bool eq( const Type *t ) const;
816 virtual uint hash() const; // Type specific hashing
817 virtual bool singleton(void) const; // TRUE if type is a singleton
818 virtual bool empty(void) const; // TRUE if type is vacuous
819
820 private:
821 const Type *_elem; // Element type of array
822 const TypeInt *_size; // Elements in array
823 const bool _stable; // Are elements @Stable?
824 friend class TypeAryPtr;
825
826 public:
827 static const TypeAry* make(const Type* elem, const TypeInt* size, bool stable = false);
828
829 virtual const Type *xmeet( const Type *t ) const;
830 virtual const Type *xdual() const; // Compute dual right now.
831 bool ary_must_be_exact() const; // true if arrays of such are never generic
832 virtual const TypeAry* remove_speculative() const;
833 virtual const Type* cleanup_speculative() const;
834 #ifndef PRODUCT
835 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping
836 #endif
837 };
838
839 //------------------------------TypeVect---------------------------------------
840 // Class of Vector Types
841 class TypeVect : public Type {
842 const BasicType _elem_bt; // Vector's element type
843 const uint _length; // Elements in vector (power of 2)
844
845 protected:
846 TypeVect(TYPES t, BasicType elem_bt, uint length) : Type(t),
847 _elem_bt(elem_bt), _length(length) {}
848
849 public:
850 BasicType element_basic_type() const { return _elem_bt; }
851 uint length() const { return _length; }
852 uint length_in_bytes() const {
853 return _length * type2aelembytes(element_basic_type());
854 }
855
856 virtual bool eq(const Type* t) const;
857 virtual uint hash() const; // Type specific hashing
858 virtual bool singleton(void) const; // TRUE if type is a singleton
859 virtual bool empty(void) const; // TRUE if type is vacuous
860
861 static const TypeVect* make(const BasicType elem_bt, uint length, bool is_mask = false);
862 static const TypeVect* makemask(const BasicType elem_bt, uint length);
863
864 virtual const Type* xmeet( const Type *t) const;
865 virtual const Type* xdual() const; // Compute dual right now.
866
867 static const TypeVect* VECTA;
868 static const TypeVect* VECTS;
869 static const TypeVect* VECTD;
870 static const TypeVect* VECTX;
871 static const TypeVect* VECTY;
872 static const TypeVect* VECTZ;
873 static const TypeVect* VECTMASK;
874
875 #ifndef PRODUCT
876 virtual void dump2(Dict& d, uint, outputStream* st) const; // Specialized per-Type dumping
877 #endif
878 };
879
880 class TypeVectA : public TypeVect {
881 friend class TypeVect;
882 TypeVectA(BasicType elem_bt, uint length) : TypeVect(VectorA, elem_bt, length) {}
883 };
884
885 class TypeVectS : public TypeVect {
886 friend class TypeVect;
887 TypeVectS(BasicType elem_bt, uint length) : TypeVect(VectorS, elem_bt, length) {}
888 };
889
890 class TypeVectD : public TypeVect {
891 friend class TypeVect;
892 TypeVectD(BasicType elem_bt, uint length) : TypeVect(VectorD, elem_bt, length) {}
893 };
894
895 class TypeVectX : public TypeVect {
896 friend class TypeVect;
897 TypeVectX(BasicType elem_bt, uint length) : TypeVect(VectorX, elem_bt, length) {}
898 };
899
900 class TypeVectY : public TypeVect {
901 friend class TypeVect;
902 TypeVectY(BasicType elem_bt, uint length) : TypeVect(VectorY, elem_bt, length) {}
903 };
904
905 class TypeVectZ : public TypeVect {
906 friend class TypeVect;
907 TypeVectZ(BasicType elem_bt, uint length) : TypeVect(VectorZ, elem_bt, length) {}
908 };
909
910 class TypeVectMask : public TypeVect {
911 public:
912 friend class TypeVect;
913 TypeVectMask(BasicType elem_bt, uint length) : TypeVect(VectorMask, elem_bt, length) {}
914 static const TypeVectMask* make(const BasicType elem_bt, uint length);
915 };
916
917 // Set of implemented interfaces. Referenced from TypeOopPtr and TypeKlassPtr.
918 class TypeInterfaces : public Type {
919 private:
920 GrowableArrayFromArray<ciInstanceKlass*> _interfaces;
921 uint _hash;
922 ciInstanceKlass* _exact_klass;
923 DEBUG_ONLY(bool _initialized;)
924
925 void initialize();
926
927 void verify() const NOT_DEBUG_RETURN;
928 void compute_hash();
929 void compute_exact_klass();
930
931 TypeInterfaces(ciInstanceKlass** interfaces_base, int nb_interfaces);
932
933 NONCOPYABLE(TypeInterfaces);
934 public:
935 static const TypeInterfaces* make(GrowableArray<ciInstanceKlass*>* interfaces = nullptr);
936 bool eq(const Type* other) const;
937 bool eq(ciInstanceKlass* k) const;
938 uint hash() const;
939 const Type *xdual() const;
940 void dump(outputStream* st) const;
941 const TypeInterfaces* union_with(const TypeInterfaces* other) const;
942 const TypeInterfaces* intersection_with(const TypeInterfaces* other) const;
943 bool contains(const TypeInterfaces* other) const {
944 return intersection_with(other)->eq(other);
945 }
946 bool empty() const { return _interfaces.length() == 0; }
947
948 ciInstanceKlass* exact_klass() const;
949 void verify_is_loaded() const NOT_DEBUG_RETURN;
950
951 static int compare(ciInstanceKlass* const& k1, ciInstanceKlass* const& k2);
952 static int compare(ciInstanceKlass** k1, ciInstanceKlass** k2);
953
954 const Type* xmeet(const Type* t) const;
955
956 bool singleton(void) const;
957 };
958
959 //------------------------------TypePtr----------------------------------------
960 // Class of machine Pointer Types: raw data, instances or arrays.
961 // If the _base enum is AnyPtr, then this refers to all of the above.
962 // Otherwise the _base will indicate which subset of pointers is affected,
963 // and the class will be inherited from.
964 class TypePtr : public Type {
965 friend class TypeNarrowPtr;
966 friend class Type;
967 protected:
968 static const TypeInterfaces* interfaces(ciKlass*& k, bool klass, bool interface, bool array, InterfaceHandling interface_handling);
969
970 public:
971 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR };
972 protected:
973 TypePtr(TYPES t, PTR ptr, int offset,
974 const TypePtr* speculative = nullptr,
975 int inline_depth = InlineDepthBottom) :
976 Type(t), _speculative(speculative), _inline_depth(inline_depth), _offset(offset),
977 _ptr(ptr) {}
978 static const PTR ptr_meet[lastPTR][lastPTR];
979 static const PTR ptr_dual[lastPTR];
980 static const char * const ptr_msg[lastPTR];
981
982 enum {
983 InlineDepthBottom = INT_MAX,
984 InlineDepthTop = -InlineDepthBottom
985 };
986
987 // Extra type information profiling gave us. We propagate it the
988 // same way the rest of the type info is propagated. If we want to
989 // use it, then we have to emit a guard: this part of the type is
990 // not something we know but something we speculate about the type.
991 const TypePtr* _speculative;
992 // For speculative types, we record at what inlining depth the
993 // profiling point that provided the data is. We want to favor
994 // profile data coming from outer scopes which are likely better for
995 // the current compilation.
996 int _inline_depth;
997
998 // utility methods to work on the speculative part of the type
999 const TypePtr* dual_speculative() const;
1000 const TypePtr* xmeet_speculative(const TypePtr* other) const;
1001 bool eq_speculative(const TypePtr* other) const;
1002 int hash_speculative() const;
1003 const TypePtr* add_offset_speculative(intptr_t offset) const;
1004 const TypePtr* with_offset_speculative(intptr_t offset) const;
1005 #ifndef PRODUCT
1006 void dump_speculative(outputStream *st) const;
1007 #endif
1008
1009 // utility methods to work on the inline depth of the type
1010 int dual_inline_depth() const;
1011 int meet_inline_depth(int depth) const;
1012 #ifndef PRODUCT
1013 void dump_inline_depth(outputStream *st) const;
1014 #endif
1015
1016 // TypeInstPtr (TypeAryPtr resp.) and TypeInstKlassPtr (TypeAryKlassPtr resp.) implement very similar meet logic.
1017 // The logic for meeting 2 instances (2 arrays resp.) is shared in the 2 utility methods below. However the logic for
1018 // the oop and klass versions can be slightly different and extra logic may have to be executed depending on what
1019 // exact case the meet falls into. The MeetResult struct is used by the utility methods to communicate what case was
1020 // encountered so the right logic specific to klasses or oops can be executed.,
1021 enum MeetResult {
1022 QUICK,
1023 UNLOADED,
1024 SUBTYPE,
1025 NOT_SUBTYPE,
1026 LCA
1027 };
1028 template<class T> static TypePtr::MeetResult meet_instptr(PTR& ptr, const TypeInterfaces*& interfaces, const T* this_type,
1029 const T* other_type, ciKlass*& res_klass, bool& res_xk);
1030
1031 template<class T> static MeetResult meet_aryptr(PTR& ptr, const Type*& elem, const T* this_ary, const T* other_ary,
1032 ciKlass*& res_klass, bool& res_xk);
1033
1034 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);
1035 template <class T1, class T2> static bool is_same_java_type_as_helper_for_instance(const T1* this_one, const T2* other);
1036 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);
1037 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);
1038 template <class T1, class T2> static bool is_same_java_type_as_helper_for_array(const T1* this_one, const T2* other);
1039 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);
1040 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);
1041 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);
1042 public:
1043 const int _offset; // Offset into oop, with TOP & BOT
1044 const PTR _ptr; // Pointer equivalence class
1045
1046 int offset() const { return _offset; }
1047 PTR ptr() const { return _ptr; }
1048
1049 static const TypePtr *make(TYPES t, PTR ptr, int offset,
1050 const TypePtr* speculative = nullptr,
1051 int inline_depth = InlineDepthBottom);
1052
1053 // Return a 'ptr' version of this type
1054 virtual const TypePtr* cast_to_ptr_type(PTR ptr) const;
1055
1056 virtual intptr_t get_con() const;
1057
1058 int xadd_offset( intptr_t offset ) const;
1059 virtual const TypePtr* add_offset(intptr_t offset) const;
1060 virtual const TypePtr* with_offset(intptr_t offset) const;
1061 virtual bool eq(const Type *t) const;
1062 virtual uint hash() const; // Type specific hashing
1063
1064 virtual bool singleton(void) const; // TRUE if type is a singleton
1065 virtual bool empty(void) const; // TRUE if type is vacuous
1066 virtual const Type *xmeet( const Type *t ) const;
1067 virtual const Type *xmeet_helper( const Type *t ) const;
1068 int meet_offset( int offset ) const;
1069 int dual_offset( ) const;
1070 virtual const Type *xdual() const; // Compute dual right now.
1071
1072 // meet, dual and join over pointer equivalence sets
1073 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; }
1074 PTR dual_ptr() const { return ptr_dual[ptr()]; }
1075
1076 // This is textually confusing unless one recalls that
1077 // join(t) == dual()->meet(t->dual())->dual().
1078 PTR join_ptr( const PTR in_ptr ) const {
1079 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ];
1080 }
1081
1082 // Speculative type helper methods.
1083 virtual const TypePtr* speculative() const { return _speculative; }
1084 int inline_depth() const { return _inline_depth; }
1085 virtual ciKlass* speculative_type() const;
1086 virtual ciKlass* speculative_type_not_null() const;
1087 virtual bool speculative_maybe_null() const;
1088 virtual bool speculative_always_null() const;
1089 virtual const TypePtr* remove_speculative() const;
1090 virtual const Type* cleanup_speculative() const;
1091 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const;
1092 virtual bool would_improve_ptr(ProfilePtrKind maybe_null) const;
1093 virtual const TypePtr* with_inline_depth(int depth) const;
1094
1095 virtual bool maybe_null() const { return meet_ptr(Null) == ptr(); }
1096
1097 // Tests for relation to centerline of type lattice:
1098 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); }
1099 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); }
1100 // Convenience common pre-built types.
1101 static const TypePtr *NULL_PTR;
1102 static const TypePtr *NOTNULL;
1103 static const TypePtr *BOTTOM;
1104 #ifndef PRODUCT
1105 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1106 #endif
1107 };
1108
1109 //------------------------------TypeRawPtr-------------------------------------
1110 // Class of raw pointers, pointers to things other than Oops. Examples
1111 // include the stack pointer, top of heap, card-marking area, handles, etc.
1112 class TypeRawPtr : public TypePtr {
1113 protected:
1114 TypeRawPtr( PTR ptr, address bits ) : TypePtr(RawPtr,ptr,0), _bits(bits){}
1115 public:
1116 virtual bool eq( const Type *t ) const;
1117 virtual uint hash() const; // Type specific hashing
1118
1119 const address _bits; // Constant value, if applicable
1120
1121 static const TypeRawPtr *make( PTR ptr );
1122 static const TypeRawPtr *make( address bits );
1123
1124 // Return a 'ptr' version of this type
1125 virtual const TypeRawPtr* cast_to_ptr_type(PTR ptr) const;
1126
1127 virtual intptr_t get_con() const;
1128
1129 virtual const TypePtr* add_offset(intptr_t offset) const;
1130 virtual const TypeRawPtr* with_offset(intptr_t offset) const { ShouldNotReachHere(); return nullptr;}
1131
1132 virtual const Type *xmeet( const Type *t ) const;
1133 virtual const Type *xdual() const; // Compute dual right now.
1134 // Convenience common pre-built types.
1135 static const TypeRawPtr *BOTTOM;
1136 static const TypeRawPtr *NOTNULL;
1137 #ifndef PRODUCT
1138 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1139 #endif
1140 };
1141
1142 //------------------------------TypeOopPtr-------------------------------------
1143 // Some kind of oop (Java pointer), either instance or array.
1144 class TypeOopPtr : public TypePtr {
1145 friend class TypeAry;
1146 friend class TypePtr;
1147 friend class TypeInstPtr;
1148 friend class TypeAryPtr;
1149 protected:
1150 TypeOopPtr(TYPES t, PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, bool xk, ciObject* o, int offset, int instance_id,
1151 const TypePtr* speculative, int inline_depth);
1152 public:
1153 virtual bool eq( const Type *t ) const;
1154 virtual uint hash() const; // Type specific hashing
1155 virtual bool singleton(void) const; // TRUE if type is a singleton
1156 enum {
1157 InstanceTop = -1, // undefined instance
1158 InstanceBot = 0 // any possible instance
1159 };
1160 protected:
1161
1162 // Oop is null, unless this is a constant oop.
1163 ciObject* _const_oop; // Constant oop
1164 // If _klass is null, then so is _sig. This is an unloaded klass.
1165 ciKlass* _klass; // Klass object
1166
1167 const TypeInterfaces* _interfaces;
1168
1169 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.)
1170 bool _klass_is_exact;
1171 bool _is_ptr_to_narrowoop;
1172 bool _is_ptr_to_narrowklass;
1173 bool _is_ptr_to_boxed_value;
1174
1175 // If not InstanceTop or InstanceBot, indicates that this is
1176 // a particular instance of this type which is distinct.
1177 // This is the node index of the allocation node creating this instance.
1178 int _instance_id;
1179
1180 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact, InterfaceHandling interface_handling);
1181
1182 int dual_instance_id() const;
1183 int meet_instance_id(int uid) const;
1184
1185 const TypeInterfaces* meet_interfaces(const TypeOopPtr* other) const;
1186
1187 // Do not allow interface-vs.-noninterface joins to collapse to top.
1188 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1189
1190 virtual ciKlass* exact_klass_helper() const { return nullptr; }
1191 virtual ciKlass* klass() const { return _klass; }
1192
1193 public:
1194
1195 bool is_java_subtype_of(const TypeOopPtr* other) const {
1196 return is_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1197 }
1198
1199 bool is_same_java_type_as(const TypePtr* other) const {
1200 return is_same_java_type_as_helper(other->is_oopptr());
1201 }
1202
1203 virtual bool is_same_java_type_as_helper(const TypeOopPtr* other) const {
1204 ShouldNotReachHere(); return false;
1205 }
1206
1207 bool maybe_java_subtype_of(const TypeOopPtr* other) const {
1208 return maybe_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1209 }
1210 virtual bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1211 virtual bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1212
1213
1214 // Creates a type given a klass. Correctly handles multi-dimensional arrays
1215 // Respects UseUniqueSubclasses.
1216 // If the klass is final, the resulting type will be exact.
1217 static const TypeOopPtr* make_from_klass(ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces) {
1218 return make_from_klass_common(klass, true, false, interface_handling);
1219 }
1220 // Same as before, but will produce an exact type, even if
1221 // the klass is not final, as long as it has exactly one implementation.
1222 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass, InterfaceHandling interface_handling= ignore_interfaces) {
1223 return make_from_klass_common(klass, true, true, interface_handling);
1224 }
1225 // Same as before, but does not respects UseUniqueSubclasses.
1226 // Use this only for creating array element types.
1227 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces) {
1228 return make_from_klass_common(klass, false, false, interface_handling);
1229 }
1230 // Creates a singleton type given an object.
1231 // If the object cannot be rendered as a constant,
1232 // may return a non-singleton type.
1233 // If require_constant, produce a null if a singleton is not possible.
1234 static const TypeOopPtr* make_from_constant(ciObject* o,
1235 bool require_constant = false);
1236
1237 // Make a generic (unclassed) pointer to an oop.
1238 static const TypeOopPtr* make(PTR ptr, int offset, int instance_id,
1239 const TypePtr* speculative = nullptr,
1240 int inline_depth = InlineDepthBottom);
1241
1242 ciObject* const_oop() const { return _const_oop; }
1243 // Exact klass, possibly an interface or an array of interface
1244 ciKlass* exact_klass(bool maybe_null = false) const { assert(klass_is_exact(), ""); ciKlass* k = exact_klass_helper(); assert(k != nullptr || maybe_null, ""); return k; }
1245 ciKlass* unloaded_klass() const { assert(!is_loaded(), "only for unloaded types"); return klass(); }
1246
1247 virtual bool is_loaded() const { return klass()->is_loaded(); }
1248 virtual bool klass_is_exact() const { return _klass_is_exact; }
1249
1250 // Returns true if this pointer points at memory which contains a
1251 // compressed oop references.
1252 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; }
1253 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; }
1254 bool is_ptr_to_boxed_value() const { return _is_ptr_to_boxed_value; }
1255 bool is_known_instance() const { return _instance_id > 0; }
1256 int instance_id() const { return _instance_id; }
1257 bool is_known_instance_field() const { return is_known_instance() && _offset >= 0; }
1258
1259 virtual intptr_t get_con() const;
1260
1261 virtual const TypeOopPtr* cast_to_ptr_type(PTR ptr) const;
1262
1263 virtual const TypeOopPtr* cast_to_exactness(bool klass_is_exact) const;
1264
1265 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const;
1266
1267 // corresponding pointer to klass, for a given instance
1268 virtual const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1269
1270 virtual const TypeOopPtr* with_offset(intptr_t offset) const;
1271 virtual const TypePtr* add_offset(intptr_t offset) const;
1272
1273 // Speculative type helper methods.
1274 virtual const TypeOopPtr* remove_speculative() const;
1275 virtual const Type* cleanup_speculative() const;
1276 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const;
1277 virtual const TypePtr* with_inline_depth(int depth) const;
1278
1279 virtual const TypePtr* with_instance_id(int instance_id) const;
1280
1281 virtual const Type *xdual() const; // Compute dual right now.
1282 // the core of the computation of the meet for TypeOopPtr and for its subclasses
1283 virtual const Type *xmeet_helper(const Type *t) const;
1284
1285 // Convenience common pre-built type.
1286 static const TypeOopPtr *BOTTOM;
1287 #ifndef PRODUCT
1288 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1289 #endif
1290 private:
1291 virtual bool is_meet_subtype_of(const TypePtr* other) const {
1292 return is_meet_subtype_of_helper(other->is_oopptr(), klass_is_exact(), other->is_oopptr()->klass_is_exact());
1293 }
1294
1295 virtual bool is_meet_subtype_of_helper(const TypeOopPtr* other, bool this_xk, bool other_xk) const {
1296 ShouldNotReachHere(); return false;
1297 }
1298
1299 virtual const TypeInterfaces* interfaces() const {
1300 return _interfaces;
1301 };
1302
1303 const TypeOopPtr* is_reference_type(const Type* other) const {
1304 return other->isa_oopptr();
1305 }
1306
1307 const TypeAryPtr* is_array_type(const TypeOopPtr* other) const {
1308 return other->isa_aryptr();
1309 }
1310
1311 const TypeInstPtr* is_instance_type(const TypeOopPtr* other) const {
1312 return other->isa_instptr();
1313 }
1314 };
1315
1316 //------------------------------TypeInstPtr------------------------------------
1317 // Class of Java object pointers, pointing either to non-array Java instances
1318 // or to a Klass* (including array klasses).
1319 class TypeInstPtr : public TypeOopPtr {
1320 TypeInstPtr(PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, bool xk, ciObject* o, int off, int instance_id,
1321 const TypePtr* speculative, int inline_depth);
1322 virtual bool eq( const Type *t ) const;
1323 virtual uint hash() const; // Type specific hashing
1324
1325 ciKlass* exact_klass_helper() const;
1326
1327 public:
1328
1329 // Instance klass, ignoring any interface
1330 ciInstanceKlass* instance_klass() const {
1331 assert(!(klass()->is_loaded() && klass()->is_interface()), "");
1332 return klass()->as_instance_klass();
1333 }
1334
1335 bool is_same_java_type_as_helper(const TypeOopPtr* other) const;
1336 bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1337 bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1338
1339 // Make a pointer to a constant oop.
1340 static const TypeInstPtr *make(ciObject* o) {
1341 ciKlass* k = o->klass();
1342 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1343 return make(TypePtr::Constant, k, interfaces, true, o, 0, InstanceBot);
1344 }
1345 // Make a pointer to a constant oop with offset.
1346 static const TypeInstPtr *make(ciObject* o, int offset) {
1347 ciKlass* k = o->klass();
1348 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1349 return make(TypePtr::Constant, k, interfaces, true, o, offset, InstanceBot);
1350 }
1351
1352 // Make a pointer to some value of type klass.
1353 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces) {
1354 const TypeInterfaces* interfaces = TypePtr::interfaces(klass, true, true, false, interface_handling);
1355 return make(ptr, klass, interfaces, false, nullptr, 0, InstanceBot);
1356 }
1357
1358 // Make a pointer to some non-polymorphic value of exactly type klass.
1359 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) {
1360 const TypeInterfaces* interfaces = TypePtr::interfaces(klass, true, false, false, ignore_interfaces);
1361 return make(ptr, klass, interfaces, true, nullptr, 0, InstanceBot);
1362 }
1363
1364 // Make a pointer to some value of type klass with offset.
1365 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, int offset) {
1366 const TypeInterfaces* interfaces = TypePtr::interfaces(klass, true, false, false, ignore_interfaces);
1367 return make(ptr, klass, interfaces, false, nullptr, offset, InstanceBot);
1368 }
1369
1370 static const TypeInstPtr *make(PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, bool xk, ciObject* o, int offset,
1371 int instance_id = InstanceBot,
1372 const TypePtr* speculative = nullptr,
1373 int inline_depth = InlineDepthBottom);
1374
1375 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id = InstanceBot) {
1376 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1377 return make(ptr, k, interfaces, xk, o, offset, instance_id);
1378 }
1379
1380 /** Create constant type for a constant boxed value */
1381 const Type* get_const_boxed_value() const;
1382
1383 // If this is a java.lang.Class constant, return the type for it or null.
1384 // Pass to Type::get_const_type to turn it to a type, which will usually
1385 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc.
1386 ciType* java_mirror_type() const;
1387
1388 virtual const TypeInstPtr* cast_to_ptr_type(PTR ptr) const;
1389
1390 virtual const TypeInstPtr* cast_to_exactness(bool klass_is_exact) const;
1391
1392 virtual const TypeInstPtr* cast_to_instance_id(int instance_id) const;
1393
1394 virtual const TypePtr* add_offset(intptr_t offset) const;
1395 virtual const TypeInstPtr* with_offset(intptr_t offset) const;
1396
1397 // Speculative type helper methods.
1398 virtual const TypeInstPtr* remove_speculative() const;
1399 const TypeInstPtr* with_speculative(const TypePtr* speculative) const;
1400 virtual const TypePtr* with_inline_depth(int depth) const;
1401 virtual const TypePtr* with_instance_id(int instance_id) const;
1402
1403 // the core of the computation of the meet of 2 types
1404 virtual const Type *xmeet_helper(const Type *t) const;
1405 virtual const TypeInstPtr *xmeet_unloaded(const TypeInstPtr *tinst, const TypeInterfaces* interfaces) const;
1406 virtual const Type *xdual() const; // Compute dual right now.
1407
1408 const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1409
1410 // Convenience common pre-built types.
1411 static const TypeInstPtr *NOTNULL;
1412 static const TypeInstPtr *BOTTOM;
1413 static const TypeInstPtr *MIRROR;
1414 static const TypeInstPtr *MARK;
1415 static const TypeInstPtr *KLASS;
1416 #ifndef PRODUCT
1417 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1418 #endif
1419
1420 private:
1421 virtual bool is_meet_subtype_of_helper(const TypeOopPtr* other, bool this_xk, bool other_xk) const;
1422
1423 virtual bool is_meet_same_type_as(const TypePtr* other) const {
1424 return _klass->equals(other->is_instptr()->_klass) && _interfaces->eq(other->is_instptr()->_interfaces);
1425 }
1426
1427 };
1428
1429 //------------------------------TypeAryPtr-------------------------------------
1430 // Class of Java array pointers
1431 class TypeAryPtr : public TypeOopPtr {
1432 friend class Type;
1433 friend class TypePtr;
1434
1435 TypeAryPtr( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk,
1436 int offset, int instance_id, bool is_autobox_cache,
1437 const TypePtr* speculative, int inline_depth)
1438 : TypeOopPtr(AryPtr,ptr,k,_array_interfaces,xk,o,offset, instance_id, speculative, inline_depth),
1439 _ary(ary),
1440 _is_autobox_cache(is_autobox_cache)
1441 {
1442 int dummy;
1443 bool top_or_bottom = (base_element_type(dummy) == Type::TOP || base_element_type(dummy) == Type::BOTTOM);
1444
1445 if (UseCompressedOops && (elem()->make_oopptr() != nullptr && !top_or_bottom) &&
1446 _offset != 0 && _offset != arrayOopDesc::length_offset_in_bytes() &&
1447 _offset != Type::klass_offset()) {
1448 _is_ptr_to_narrowoop = true;
1449 }
1450
1451 }
1452 virtual bool eq( const Type *t ) const;
1453 virtual uint hash() const; // Type specific hashing
1454 const TypeAry *_ary; // Array we point into
1455 const bool _is_autobox_cache;
1456
1457 ciKlass* compute_klass() const;
1458
1459 // A pointer to delay allocation to Type::Initialize_shared()
1460
1461 static const TypeInterfaces* _array_interfaces;
1462 ciKlass* exact_klass_helper() const;
1463 // Only guaranteed non null for array of basic types
1464 ciKlass* klass() const;
1465
1466 public:
1467
1468 bool is_same_java_type_as_helper(const TypeOopPtr* other) const;
1469 bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1470 bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1471
1472 // returns base element type, an instance klass (and not interface) for object arrays
1473 const Type* base_element_type(int& dims) const;
1474
1475 // Accessors
1476 bool is_loaded() const { return (_ary->_elem->make_oopptr() ? _ary->_elem->make_oopptr()->is_loaded() : true); }
1477
1478 const TypeAry* ary() const { return _ary; }
1479 const Type* elem() const { return _ary->_elem; }
1480 const TypeInt* size() const { return _ary->_size; }
1481 bool is_stable() const { return _ary->_stable; }
1482
1483 bool is_autobox_cache() const { return _is_autobox_cache; }
1484
1485 static const TypeAryPtr *make(PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset,
1486 int instance_id = InstanceBot,
1487 const TypePtr* speculative = nullptr,
1488 int inline_depth = InlineDepthBottom);
1489 // Constant pointer to array
1490 static const TypeAryPtr *make(PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, int offset,
1491 int instance_id = InstanceBot,
1492 const TypePtr* speculative = nullptr,
1493 int inline_depth = InlineDepthBottom, bool is_autobox_cache = false);
1494
1495 // Return a 'ptr' version of this type
1496 virtual const TypeAryPtr* cast_to_ptr_type(PTR ptr) const;
1497
1498 virtual const TypeAryPtr* cast_to_exactness(bool klass_is_exact) const;
1499
1500 virtual const TypeAryPtr* cast_to_instance_id(int instance_id) const;
1501
1502 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const;
1503 virtual const TypeInt* narrow_size_type(const TypeInt* size) const;
1504
1505 virtual bool empty(void) const; // TRUE if type is vacuous
1506 virtual const TypePtr *add_offset( intptr_t offset ) const;
1507 virtual const TypeAryPtr *with_offset( intptr_t offset ) const;
1508 const TypeAryPtr* with_ary(const TypeAry* ary) const;
1509
1510 // Speculative type helper methods.
1511 virtual const TypeAryPtr* remove_speculative() const;
1512 virtual const TypePtr* with_inline_depth(int depth) const;
1513 virtual const TypePtr* with_instance_id(int instance_id) const;
1514
1515 // the core of the computation of the meet of 2 types
1516 virtual const Type *xmeet_helper(const Type *t) const;
1517 virtual const Type *xdual() const; // Compute dual right now.
1518
1519 const TypeAryPtr* cast_to_stable(bool stable, int stable_dimension = 1) const;
1520 int stable_dimension() const;
1521
1522 const TypeAryPtr* cast_to_autobox_cache() const;
1523
1524 static jint max_array_length(BasicType etype) ;
1525 virtual const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1526
1527 // Convenience common pre-built types.
1528 static const TypeAryPtr* BOTTOM;
1529 static const TypeAryPtr* RANGE;
1530 static const TypeAryPtr* OOPS;
1531 static const TypeAryPtr* NARROWOOPS;
1532 static const TypeAryPtr* BYTES;
1533 static const TypeAryPtr* SHORTS;
1534 static const TypeAryPtr* CHARS;
1535 static const TypeAryPtr* INTS;
1536 static const TypeAryPtr* LONGS;
1537 static const TypeAryPtr* FLOATS;
1538 static const TypeAryPtr* DOUBLES;
1539 // selects one of the above:
1540 static const TypeAryPtr *get_array_body_type(BasicType elem) {
1541 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != nullptr, "bad elem type");
1542 return _array_body_type[elem];
1543 }
1544 static const TypeAryPtr *_array_body_type[T_CONFLICT+1];
1545 // sharpen the type of an int which is used as an array size
1546 #ifndef PRODUCT
1547 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1548 #endif
1549 private:
1550 virtual bool is_meet_subtype_of_helper(const TypeOopPtr* other, bool this_xk, bool other_xk) const;
1551 };
1552
1553 //------------------------------TypeMetadataPtr-------------------------------------
1554 // Some kind of metadata, either Method*, MethodData* or CPCacheOop
1555 class TypeMetadataPtr : public TypePtr {
1556 protected:
1557 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, int offset);
1558 // Do not allow interface-vs.-noninterface joins to collapse to top.
1559 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1560 public:
1561 virtual bool eq( const Type *t ) const;
1562 virtual uint hash() const; // Type specific hashing
1563 virtual bool singleton(void) const; // TRUE if type is a singleton
1564
1565 private:
1566 ciMetadata* _metadata;
1567
1568 public:
1569 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, int offset);
1570
1571 static const TypeMetadataPtr* make(ciMethod* m);
1572 static const TypeMetadataPtr* make(ciMethodData* m);
1573
1574 ciMetadata* metadata() const { return _metadata; }
1575
1576 virtual const TypeMetadataPtr* cast_to_ptr_type(PTR ptr) const;
1577
1578 virtual const TypePtr *add_offset( intptr_t offset ) const;
1579
1580 virtual const Type *xmeet( const Type *t ) const;
1581 virtual const Type *xdual() const; // Compute dual right now.
1582
1583 virtual intptr_t get_con() const;
1584
1585 // Convenience common pre-built types.
1586 static const TypeMetadataPtr *BOTTOM;
1587
1588 #ifndef PRODUCT
1589 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1590 #endif
1591 };
1592
1593 //------------------------------TypeKlassPtr-----------------------------------
1594 // Class of Java Klass pointers
1595 class TypeKlassPtr : public TypePtr {
1596 friend class TypeInstKlassPtr;
1597 friend class TypeAryKlassPtr;
1598 friend class TypePtr;
1599 protected:
1600 TypeKlassPtr(TYPES t, PTR ptr, ciKlass* klass, const TypeInterfaces* interfaces, int offset);
1601
1602 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1603
1604 public:
1605 virtual bool eq( const Type *t ) const;
1606 virtual uint hash() const;
1607 virtual bool singleton(void) const; // TRUE if type is a singleton
1608
1609 protected:
1610
1611 ciKlass* _klass;
1612 const TypeInterfaces* _interfaces;
1613 const TypeInterfaces* meet_interfaces(const TypeKlassPtr* other) const;
1614 virtual bool must_be_exact() const { ShouldNotReachHere(); return false; }
1615 virtual ciKlass* exact_klass_helper() const;
1616 virtual ciKlass* klass() const { return _klass; }
1617
1618 public:
1619
1620 bool is_java_subtype_of(const TypeKlassPtr* other) const {
1621 return is_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1622 }
1623 bool is_same_java_type_as(const TypePtr* other) const {
1624 return is_same_java_type_as_helper(other->is_klassptr());
1625 }
1626
1627 bool maybe_java_subtype_of(const TypeKlassPtr* other) const {
1628 return maybe_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1629 }
1630 virtual bool is_same_java_type_as_helper(const TypeKlassPtr* other) const { ShouldNotReachHere(); return false; }
1631 virtual bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1632 virtual bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1633
1634 // Exact klass, possibly an interface or an array of interface
1635 ciKlass* exact_klass(bool maybe_null = false) const { assert(klass_is_exact(), ""); ciKlass* k = exact_klass_helper(); assert(k != nullptr || maybe_null, ""); return k; }
1636 virtual bool klass_is_exact() const { return _ptr == Constant; }
1637
1638 static const TypeKlassPtr* make(ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces);
1639 static const TypeKlassPtr *make(PTR ptr, ciKlass* klass, int offset, InterfaceHandling interface_handling = ignore_interfaces);
1640
1641 virtual bool is_loaded() const { return _klass->is_loaded(); }
1642
1643 virtual const TypeKlassPtr* cast_to_ptr_type(PTR ptr) const { ShouldNotReachHere(); return nullptr; }
1644
1645 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const { ShouldNotReachHere(); return nullptr; }
1646
1647 // corresponding pointer to instance, for a given class
1648 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const { ShouldNotReachHere(); return nullptr; }
1649
1650 virtual const TypePtr *add_offset( intptr_t offset ) const { ShouldNotReachHere(); return nullptr; }
1651 virtual const Type *xmeet( const Type *t ) const { ShouldNotReachHere(); return nullptr; }
1652 virtual const Type *xdual() const { ShouldNotReachHere(); return nullptr; }
1653
1654 virtual intptr_t get_con() const;
1655
1656 virtual const TypeKlassPtr* with_offset(intptr_t offset) const { ShouldNotReachHere(); return nullptr; }
1657
1658 virtual const TypeKlassPtr* try_improve() const { return this; }
1659
1660 #ifndef PRODUCT
1661 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1662 #endif
1663 private:
1664 virtual bool is_meet_subtype_of(const TypePtr* other) const {
1665 return is_meet_subtype_of_helper(other->is_klassptr(), klass_is_exact(), other->is_klassptr()->klass_is_exact());
1666 }
1667
1668 virtual bool is_meet_subtype_of_helper(const TypeKlassPtr* other, bool this_xk, bool other_xk) const {
1669 ShouldNotReachHere(); return false;
1670 }
1671
1672 virtual const TypeInterfaces* interfaces() const {
1673 return _interfaces;
1674 };
1675
1676 const TypeKlassPtr* is_reference_type(const Type* other) const {
1677 return other->isa_klassptr();
1678 }
1679
1680 const TypeAryKlassPtr* is_array_type(const TypeKlassPtr* other) const {
1681 return other->isa_aryklassptr();
1682 }
1683
1684 const TypeInstKlassPtr* is_instance_type(const TypeKlassPtr* other) const {
1685 return other->isa_instklassptr();
1686 }
1687 };
1688
1689 // Instance klass pointer, mirrors TypeInstPtr
1690 class TypeInstKlassPtr : public TypeKlassPtr {
1691
1692 TypeInstKlassPtr(PTR ptr, ciKlass* klass, const TypeInterfaces* interfaces, int offset)
1693 : TypeKlassPtr(InstKlassPtr, ptr, klass, interfaces, offset) {
1694 assert(klass->is_instance_klass() && (!klass->is_loaded() || !klass->is_interface()), "");
1695 }
1696
1697 virtual bool must_be_exact() const;
1698
1699 public:
1700 // Instance klass ignoring any interface
1701 ciInstanceKlass* instance_klass() const {
1702 assert(!klass()->is_interface(), "");
1703 return klass()->as_instance_klass();
1704 }
1705
1706 bool is_same_java_type_as_helper(const TypeKlassPtr* other) const;
1707 bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1708 bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1709
1710 static const TypeInstKlassPtr *make(ciKlass* k, InterfaceHandling interface_handling) {
1711 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, true, false, interface_handling);
1712 return make(TypePtr::Constant, k, interfaces, 0);
1713 }
1714 static const TypeInstKlassPtr* make(PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, int offset);
1715
1716 static const TypeInstKlassPtr* make(PTR ptr, ciKlass* k, int offset) {
1717 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1718 return make(ptr, k, interfaces, offset);
1719 }
1720
1721 virtual const TypeInstKlassPtr* cast_to_ptr_type(PTR ptr) const;
1722
1723 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const;
1724
1725 // corresponding pointer to instance, for a given class
1726 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const;
1727 virtual uint hash() const;
1728 virtual bool eq(const Type *t) const;
1729
1730 virtual const TypePtr *add_offset( intptr_t offset ) const;
1731 virtual const Type *xmeet( const Type *t ) const;
1732 virtual const Type *xdual() const;
1733 virtual const TypeInstKlassPtr* with_offset(intptr_t offset) const;
1734
1735 virtual const TypeKlassPtr* try_improve() const;
1736
1737 // Convenience common pre-built types.
1738 static const TypeInstKlassPtr* OBJECT; // Not-null object klass or below
1739 static const TypeInstKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same
1740 private:
1741 virtual bool is_meet_subtype_of_helper(const TypeKlassPtr* other, bool this_xk, bool other_xk) const;
1742 };
1743
1744 // Array klass pointer, mirrors TypeAryPtr
1745 class TypeAryKlassPtr : public TypeKlassPtr {
1746 friend class TypeInstKlassPtr;
1747 friend class Type;
1748 friend class TypePtr;
1749
1750 const Type *_elem;
1751
1752 static const TypeInterfaces* _array_interfaces;
1753 TypeAryKlassPtr(PTR ptr, const Type *elem, ciKlass* klass, int offset)
1754 : TypeKlassPtr(AryKlassPtr, ptr, klass, _array_interfaces, offset), _elem(elem) {
1755 assert(klass == nullptr || klass->is_type_array_klass() || !klass->as_obj_array_klass()->base_element_klass()->is_interface(), "");
1756 }
1757
1758 virtual ciKlass* exact_klass_helper() const;
1759 // Only guaranteed non null for array of basic types
1760 virtual ciKlass* klass() const;
1761
1762 virtual bool must_be_exact() const;
1763
1764 public:
1765
1766 // returns base element type, an instance klass (and not interface) for object arrays
1767 const Type* base_element_type(int& dims) const;
1768
1769 static const TypeAryKlassPtr *make(PTR ptr, ciKlass* k, int offset, InterfaceHandling interface_handling);
1770
1771 bool is_same_java_type_as_helper(const TypeKlassPtr* other) const;
1772 bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1773 bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1774
1775 bool is_loaded() const { return (_elem->isa_klassptr() ? _elem->is_klassptr()->is_loaded() : true); }
1776
1777 static const TypeAryKlassPtr *make(PTR ptr, const Type *elem, ciKlass* k, int offset);
1778 static const TypeAryKlassPtr* make(ciKlass* klass, InterfaceHandling interface_handling);
1779
1780 const Type *elem() const { return _elem; }
1781
1782 virtual bool eq(const Type *t) const;
1783 virtual uint hash() const; // Type specific hashing
1784
1785 virtual const TypeAryKlassPtr* cast_to_ptr_type(PTR ptr) const;
1786
1787 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const;
1788
1789 // corresponding pointer to instance, for a given class
1790 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const;
1791
1792 virtual const TypePtr *add_offset( intptr_t offset ) const;
1793 virtual const Type *xmeet( const Type *t ) const;
1794 virtual const Type *xdual() const; // Compute dual right now.
1795
1796 virtual const TypeAryKlassPtr* with_offset(intptr_t offset) const;
1797
1798 virtual bool empty(void) const {
1799 return TypeKlassPtr::empty() || _elem->empty();
1800 }
1801
1802 #ifndef PRODUCT
1803 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1804 #endif
1805 private:
1806 virtual bool is_meet_subtype_of_helper(const TypeKlassPtr* other, bool this_xk, bool other_xk) const;
1807 };
1808
1809 class TypeNarrowPtr : public Type {
1810 protected:
1811 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR
1812
1813 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): Type(t),
1814 _ptrtype(ptrtype) {
1815 assert(ptrtype->offset() == 0 ||
1816 ptrtype->offset() == OffsetBot ||
1817 ptrtype->offset() == OffsetTop, "no real offsets");
1818 }
1819
1820 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0;
1821 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0;
1822 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0;
1823 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0;
1824 // Do not allow interface-vs.-noninterface joins to collapse to top.
1825 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1826 public:
1827 virtual bool eq( const Type *t ) const;
1828 virtual uint hash() const; // Type specific hashing
1829 virtual bool singleton(void) const; // TRUE if type is a singleton
1830
1831 virtual const Type *xmeet( const Type *t ) const;
1832 virtual const Type *xdual() const; // Compute dual right now.
1833
1834 virtual intptr_t get_con() const;
1835
1836 virtual bool empty(void) const; // TRUE if type is vacuous
1837
1838 // returns the equivalent ptr type for this compressed pointer
1839 const TypePtr *get_ptrtype() const {
1840 return _ptrtype;
1841 }
1842
1843 bool is_known_instance() const {
1844 return _ptrtype->is_known_instance();
1845 }
1846
1847 #ifndef PRODUCT
1848 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1849 #endif
1850 };
1851
1852 //------------------------------TypeNarrowOop----------------------------------
1853 // A compressed reference to some kind of Oop. This type wraps around
1854 // a preexisting TypeOopPtr and forwards most of it's operations to
1855 // the underlying type. It's only real purpose is to track the
1856 // oopness of the compressed oop value when we expose the conversion
1857 // between the normal and the compressed form.
1858 class TypeNarrowOop : public TypeNarrowPtr {
1859 protected:
1860 TypeNarrowOop( const TypePtr* ptrtype): TypeNarrowPtr(NarrowOop, ptrtype) {
1861 }
1862
1863 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const {
1864 return t->isa_narrowoop();
1865 }
1866
1867 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const {
1868 return t->is_narrowoop();
1869 }
1870
1871 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const {
1872 return new TypeNarrowOop(t);
1873 }
1874
1875 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const {
1876 return (const TypeNarrowPtr*)((new TypeNarrowOop(t))->hashcons());
1877 }
1878
1879 public:
1880
1881 static const TypeNarrowOop *make( const TypePtr* type);
1882
1883 static const TypeNarrowOop* make_from_constant(ciObject* con, bool require_constant = false) {
1884 return make(TypeOopPtr::make_from_constant(con, require_constant));
1885 }
1886
1887 static const TypeNarrowOop *BOTTOM;
1888 static const TypeNarrowOop *NULL_PTR;
1889
1890 virtual const TypeNarrowOop* remove_speculative() const;
1891 virtual const Type* cleanup_speculative() const;
1892
1893 #ifndef PRODUCT
1894 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1895 #endif
1896 };
1897
1898 //------------------------------TypeNarrowKlass----------------------------------
1899 // A compressed reference to klass pointer. This type wraps around a
1900 // preexisting TypeKlassPtr and forwards most of it's operations to
1901 // the underlying type.
1902 class TypeNarrowKlass : public TypeNarrowPtr {
1903 protected:
1904 TypeNarrowKlass( const TypePtr* ptrtype): TypeNarrowPtr(NarrowKlass, ptrtype) {
1905 }
1906
1907 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const {
1908 return t->isa_narrowklass();
1909 }
1910
1911 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const {
1912 return t->is_narrowklass();
1913 }
1914
1915 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const {
1916 return new TypeNarrowKlass(t);
1917 }
1918
1919 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const {
1920 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons());
1921 }
1922
1923 public:
1924 static const TypeNarrowKlass *make( const TypePtr* type);
1925
1926 // static const TypeNarrowKlass *BOTTOM;
1927 static const TypeNarrowKlass *NULL_PTR;
1928
1929 #ifndef PRODUCT
1930 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1931 #endif
1932 };
1933
1934 //------------------------------TypeFunc---------------------------------------
1935 // Class of Array Types
1936 class TypeFunc : public Type {
1937 TypeFunc( const TypeTuple *domain, const TypeTuple *range ) : Type(Function), _domain(domain), _range(range) {}
1938 virtual bool eq( const Type *t ) const;
1939 virtual uint hash() const; // Type specific hashing
1940 virtual bool singleton(void) const; // TRUE if type is a singleton
1941 virtual bool empty(void) const; // TRUE if type is vacuous
1942
1943 const TypeTuple* const _domain; // Domain of inputs
1944 const TypeTuple* const _range; // Range of results
1945
1946 public:
1947 // Constants are shared among ADLC and VM
1948 enum { Control = AdlcVMDeps::Control,
1949 I_O = AdlcVMDeps::I_O,
1950 Memory = AdlcVMDeps::Memory,
1951 FramePtr = AdlcVMDeps::FramePtr,
1952 ReturnAdr = AdlcVMDeps::ReturnAdr,
1953 Parms = AdlcVMDeps::Parms
1954 };
1955
1956
1957 // Accessors:
1958 const TypeTuple* domain() const { return _domain; }
1959 const TypeTuple* range() const { return _range; }
1960
1961 static const TypeFunc *make(ciMethod* method);
1962 static const TypeFunc *make(ciSignature signature, const Type* extra);
1963 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range);
1964
1965 virtual const Type *xmeet( const Type *t ) const;
1966 virtual const Type *xdual() const; // Compute dual right now.
1967
1968 BasicType return_type() const;
1969
1970 #ifndef PRODUCT
1971 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1972 #endif
1973 // Convenience common pre-built types.
1974 };
1975
1976 //------------------------------accessors--------------------------------------
1977 inline bool Type::is_ptr_to_narrowoop() const {
1978 #ifdef _LP64
1979 return (isa_oopptr() != nullptr && is_oopptr()->is_ptr_to_narrowoop_nv());
1980 #else
1981 return false;
1982 #endif
1983 }
1984
1985 inline bool Type::is_ptr_to_narrowklass() const {
1986 #ifdef _LP64
1987 return (isa_oopptr() != nullptr && is_oopptr()->is_ptr_to_narrowklass_nv());
1988 #else
1989 return false;
1990 #endif
1991 }
1992
1993 inline float Type::getf() const {
1994 assert( _base == FloatCon, "Not a FloatCon" );
1995 return ((TypeF*)this)->_f;
1996 }
1997
1998 inline short Type::geth() const {
1999 assert(_base == HalfFloatCon, "Not a HalfFloatCon");
2000 return ((TypeH*)this)->_f;
2001 }
2002
2003 inline double Type::getd() const {
2004 assert( _base == DoubleCon, "Not a DoubleCon" );
2005 return ((TypeD*)this)->_d;
2006 }
2007
2008 inline const TypeInteger *Type::is_integer(BasicType bt) const {
2009 assert((bt == T_INT && _base == Int) || (bt == T_LONG && _base == Long), "Not an Int");
2010 return (TypeInteger*)this;
2011 }
2012
2013 inline const TypeInteger *Type::isa_integer(BasicType bt) const {
2014 return (((bt == T_INT && _base == Int) || (bt == T_LONG && _base == Long)) ? (TypeInteger*)this : nullptr);
2015 }
2016
2017 inline const TypeInt *Type::is_int() const {
2018 assert( _base == Int, "Not an Int" );
2019 return (TypeInt*)this;
2020 }
2021
2022 inline const TypeInt *Type::isa_int() const {
2023 return ( _base == Int ? (TypeInt*)this : nullptr);
2024 }
2025
2026 inline const TypeLong *Type::is_long() const {
2027 assert( _base == Long, "Not a Long" );
2028 return (TypeLong*)this;
2029 }
2030
2031 inline const TypeLong *Type::isa_long() const {
2032 return ( _base == Long ? (TypeLong*)this : nullptr);
2033 }
2034
2035 inline const TypeH* Type::isa_half_float() const {
2036 return ((_base == HalfFloatTop ||
2037 _base == HalfFloatCon ||
2038 _base == HalfFloatBot) ? (TypeH*)this : nullptr);
2039 }
2040
2041 inline const TypeH* Type::is_half_float_constant() const {
2042 assert( _base == HalfFloatCon, "Not a HalfFloat" );
2043 return (TypeH*)this;
2044 }
2045
2046 inline const TypeH* Type::isa_half_float_constant() const {
2047 return (_base == HalfFloatCon ? (TypeH*)this : nullptr);
2048 }
2049
2050 inline const TypeF *Type::isa_float() const {
2051 return ((_base == FloatTop ||
2052 _base == FloatCon ||
2053 _base == FloatBot) ? (TypeF*)this : nullptr);
2054 }
2055
2056 inline const TypeF *Type::is_float_constant() const {
2057 assert( _base == FloatCon, "Not a Float" );
2058 return (TypeF*)this;
2059 }
2060
2061 inline const TypeF *Type::isa_float_constant() const {
2062 return ( _base == FloatCon ? (TypeF*)this : nullptr);
2063 }
2064
2065 inline const TypeD *Type::isa_double() const {
2066 return ((_base == DoubleTop ||
2067 _base == DoubleCon ||
2068 _base == DoubleBot) ? (TypeD*)this : nullptr);
2069 }
2070
2071 inline const TypeD *Type::is_double_constant() const {
2072 assert( _base == DoubleCon, "Not a Double" );
2073 return (TypeD*)this;
2074 }
2075
2076 inline const TypeD *Type::isa_double_constant() const {
2077 return ( _base == DoubleCon ? (TypeD*)this : nullptr);
2078 }
2079
2080 inline const TypeTuple *Type::is_tuple() const {
2081 assert( _base == Tuple, "Not a Tuple" );
2082 return (TypeTuple*)this;
2083 }
2084
2085 inline const TypeAry *Type::is_ary() const {
2086 assert( _base == Array , "Not an Array" );
2087 return (TypeAry*)this;
2088 }
2089
2090 inline const TypeAry *Type::isa_ary() const {
2091 return ((_base == Array) ? (TypeAry*)this : nullptr);
2092 }
2093
2094 inline const TypeVectMask *Type::is_vectmask() const {
2095 assert( _base == VectorMask, "Not a Vector Mask" );
2096 return (TypeVectMask*)this;
2097 }
2098
2099 inline const TypeVectMask *Type::isa_vectmask() const {
2100 return (_base == VectorMask) ? (TypeVectMask*)this : nullptr;
2101 }
2102
2103 inline const TypeVect *Type::is_vect() const {
2104 assert( _base >= VectorMask && _base <= VectorZ, "Not a Vector" );
2105 return (TypeVect*)this;
2106 }
2107
2108 inline const TypeVect *Type::isa_vect() const {
2109 return (_base >= VectorMask && _base <= VectorZ) ? (TypeVect*)this : nullptr;
2110 }
2111
2112 inline const TypePtr *Type::is_ptr() const {
2113 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between.
2114 assert(_base >= AnyPtr && _base <= AryKlassPtr, "Not a pointer");
2115 return (TypePtr*)this;
2116 }
2117
2118 inline const TypePtr *Type::isa_ptr() const {
2119 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between.
2120 return (_base >= AnyPtr && _base <= AryKlassPtr) ? (TypePtr*)this : nullptr;
2121 }
2122
2123 inline const TypeOopPtr *Type::is_oopptr() const {
2124 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2125 assert(_base >= OopPtr && _base <= AryPtr, "Not a Java pointer" ) ;
2126 return (TypeOopPtr*)this;
2127 }
2128
2129 inline const TypeOopPtr *Type::isa_oopptr() const {
2130 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2131 return (_base >= OopPtr && _base <= AryPtr) ? (TypeOopPtr*)this : nullptr;
2132 }
2133
2134 inline const TypeRawPtr *Type::isa_rawptr() const {
2135 return (_base == RawPtr) ? (TypeRawPtr*)this : nullptr;
2136 }
2137
2138 inline const TypeRawPtr *Type::is_rawptr() const {
2139 assert( _base == RawPtr, "Not a raw pointer" );
2140 return (TypeRawPtr*)this;
2141 }
2142
2143 inline const TypeInstPtr *Type::isa_instptr() const {
2144 return (_base == InstPtr) ? (TypeInstPtr*)this : nullptr;
2145 }
2146
2147 inline const TypeInstPtr *Type::is_instptr() const {
2148 assert( _base == InstPtr, "Not an object pointer" );
2149 return (TypeInstPtr*)this;
2150 }
2151
2152 inline const TypeAryPtr *Type::isa_aryptr() const {
2153 return (_base == AryPtr) ? (TypeAryPtr*)this : nullptr;
2154 }
2155
2156 inline const TypeAryPtr *Type::is_aryptr() const {
2157 assert( _base == AryPtr, "Not an array pointer" );
2158 return (TypeAryPtr*)this;
2159 }
2160
2161 inline const TypeNarrowOop *Type::is_narrowoop() const {
2162 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2163 assert(_base == NarrowOop, "Not a narrow oop" ) ;
2164 return (TypeNarrowOop*)this;
2165 }
2166
2167 inline const TypeNarrowOop *Type::isa_narrowoop() const {
2168 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2169 return (_base == NarrowOop) ? (TypeNarrowOop*)this : nullptr;
2170 }
2171
2172 inline const TypeNarrowKlass *Type::is_narrowklass() const {
2173 assert(_base == NarrowKlass, "Not a narrow oop" ) ;
2174 return (TypeNarrowKlass*)this;
2175 }
2176
2177 inline const TypeNarrowKlass *Type::isa_narrowklass() const {
2178 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : nullptr;
2179 }
2180
2181 inline const TypeMetadataPtr *Type::is_metadataptr() const {
2182 // MetadataPtr is the first and CPCachePtr the last
2183 assert(_base == MetadataPtr, "Not a metadata pointer" ) ;
2184 return (TypeMetadataPtr*)this;
2185 }
2186
2187 inline const TypeMetadataPtr *Type::isa_metadataptr() const {
2188 return (_base == MetadataPtr) ? (TypeMetadataPtr*)this : nullptr;
2189 }
2190
2191 inline const TypeKlassPtr *Type::isa_klassptr() const {
2192 return (_base >= KlassPtr && _base <= AryKlassPtr ) ? (TypeKlassPtr*)this : nullptr;
2193 }
2194
2195 inline const TypeKlassPtr *Type::is_klassptr() const {
2196 assert(_base >= KlassPtr && _base <= AryKlassPtr, "Not a klass pointer");
2197 return (TypeKlassPtr*)this;
2198 }
2199
2200 inline const TypeInstKlassPtr *Type::isa_instklassptr() const {
2201 return (_base == InstKlassPtr) ? (TypeInstKlassPtr*)this : nullptr;
2202 }
2203
2204 inline const TypeInstKlassPtr *Type::is_instklassptr() const {
2205 assert(_base == InstKlassPtr, "Not a klass pointer");
2206 return (TypeInstKlassPtr*)this;
2207 }
2208
2209 inline const TypeAryKlassPtr *Type::isa_aryklassptr() const {
2210 return (_base == AryKlassPtr) ? (TypeAryKlassPtr*)this : nullptr;
2211 }
2212
2213 inline const TypeAryKlassPtr *Type::is_aryklassptr() const {
2214 assert(_base == AryKlassPtr, "Not a klass pointer");
2215 return (TypeAryKlassPtr*)this;
2216 }
2217
2218 inline const TypePtr* Type::make_ptr() const {
2219 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() :
2220 ((_base == NarrowKlass) ? is_narrowklass()->get_ptrtype() :
2221 isa_ptr());
2222 }
2223
2224 inline const TypeOopPtr* Type::make_oopptr() const {
2225 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->isa_oopptr() : isa_oopptr();
2226 }
2227
2228 inline const TypeNarrowOop* Type::make_narrowoop() const {
2229 return (_base == NarrowOop) ? is_narrowoop() :
2230 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : nullptr);
2231 }
2232
2233 inline const TypeNarrowKlass* Type::make_narrowklass() const {
2234 return (_base == NarrowKlass) ? is_narrowklass() :
2235 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : nullptr);
2236 }
2237
2238 inline bool Type::is_floatingpoint() const {
2239 if( (_base == HalfFloatCon) || (_base == HalfFloatBot) ||
2240 (_base == FloatCon) || (_base == FloatBot) ||
2241 (_base == DoubleCon) || (_base == DoubleBot) )
2242 return true;
2243 return false;
2244 }
2245
2246 template <>
2247 inline const TypeInt* Type::cast<TypeInt>() const {
2248 return is_int();
2249 }
2250
2251 template <>
2252 inline const TypeLong* Type::cast<TypeLong>() const {
2253 return is_long();
2254 }
2255
2256 // ===============================================================
2257 // Things that need to be 64-bits in the 64-bit build but
2258 // 32-bits in the 32-bit build. Done this way to get full
2259 // optimization AND strong typing.
2260 #ifdef _LP64
2261
2262 // For type queries and asserts
2263 #define is_intptr_t is_long
2264 #define isa_intptr_t isa_long
2265 #define find_intptr_t_type find_long_type
2266 #define find_intptr_t_con find_long_con
2267 #define TypeX TypeLong
2268 #define Type_X Type::Long
2269 #define TypeX_X TypeLong::LONG
2270 #define TypeX_ZERO TypeLong::ZERO
2271 // For 'ideal_reg' machine registers
2272 #define Op_RegX Op_RegL
2273 // For phase->intcon variants
2274 #define MakeConX longcon
2275 #define ConXNode ConLNode
2276 // For array index arithmetic
2277 #define MulXNode MulLNode
2278 #define AndXNode AndLNode
2279 #define OrXNode OrLNode
2280 #define CmpXNode CmpLNode
2281 #define SubXNode SubLNode
2282 #define LShiftXNode LShiftLNode
2283 // For object size computation:
2284 #define AddXNode AddLNode
2285 #define RShiftXNode RShiftLNode
2286 // For card marks and hashcodes
2287 #define URShiftXNode URShiftLNode
2288 // For shenandoahSupport
2289 #define LoadXNode LoadLNode
2290 #define StoreXNode StoreLNode
2291 // Opcodes
2292 #define Op_LShiftX Op_LShiftL
2293 #define Op_AndX Op_AndL
2294 #define Op_AddX Op_AddL
2295 #define Op_SubX Op_SubL
2296 #define Op_XorX Op_XorL
2297 #define Op_URShiftX Op_URShiftL
2298 #define Op_LoadX Op_LoadL
2299 // conversions
2300 #define ConvI2X(x) ConvI2L(x)
2301 #define ConvL2X(x) (x)
2302 #define ConvX2I(x) ConvL2I(x)
2303 #define ConvX2L(x) (x)
2304 #define ConvX2UL(x) (x)
2305
2306 #else
2307
2308 // For type queries and asserts
2309 #define is_intptr_t is_int
2310 #define isa_intptr_t isa_int
2311 #define find_intptr_t_type find_int_type
2312 #define find_intptr_t_con find_int_con
2313 #define TypeX TypeInt
2314 #define Type_X Type::Int
2315 #define TypeX_X TypeInt::INT
2316 #define TypeX_ZERO TypeInt::ZERO
2317 // For 'ideal_reg' machine registers
2318 #define Op_RegX Op_RegI
2319 // For phase->intcon variants
2320 #define MakeConX intcon
2321 #define ConXNode ConINode
2322 // For array index arithmetic
2323 #define MulXNode MulINode
2324 #define AndXNode AndINode
2325 #define OrXNode OrINode
2326 #define CmpXNode CmpINode
2327 #define SubXNode SubINode
2328 #define LShiftXNode LShiftINode
2329 // For object size computation:
2330 #define AddXNode AddINode
2331 #define RShiftXNode RShiftINode
2332 // For card marks and hashcodes
2333 #define URShiftXNode URShiftINode
2334 // For shenandoahSupport
2335 #define LoadXNode LoadINode
2336 #define StoreXNode StoreINode
2337 // Opcodes
2338 #define Op_LShiftX Op_LShiftI
2339 #define Op_AndX Op_AndI
2340 #define Op_AddX Op_AddI
2341 #define Op_SubX Op_SubI
2342 #define Op_XorX Op_XorI
2343 #define Op_URShiftX Op_URShiftI
2344 #define Op_LoadX Op_LoadI
2345 // conversions
2346 #define ConvI2X(x) (x)
2347 #define ConvL2X(x) ConvL2I(x)
2348 #define ConvX2I(x) (x)
2349 #define ConvX2L(x) ConvI2L(x)
2350 #define ConvX2UL(x) ConvI2UL(x)
2351
2352 #endif
2353
2354 #endif // SHARE_OPTO_TYPE_HPP