1 /*
2 * Copyright (c) 1997, 2024, 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 "ci/ciInlineKlass.hpp"
29 #include "opto/adlcVMDeps.hpp"
30 #include "runtime/handles.hpp"
31 #include "runtime/sharedRuntime.hpp"
32
33 // Portions of code courtesy of Clifford Click
34
35 // Optimization - Graph Style
36
37
38 // This class defines a Type lattice. The lattice is used in the constant
39 // propagation algorithms, and for some type-checking of the iloc code.
40 // Basic types include RSD's (lower bound, upper bound, stride for integers),
41 // float & double precision constants, sets of data-labels and code-labels.
42 // The complete lattice is described below. Subtypes have no relationship to
43 // up or down in the lattice; that is entirely determined by the behavior of
44 // the MEET/JOIN functions.
45
46 class Dict;
47 class Type;
48 class TypeD;
49 class TypeF;
50 class TypeInteger;
51 class TypeInt;
52 class TypeLong;
53 class TypeNarrowPtr;
54 class TypeNarrowOop;
55 class TypeNarrowKlass;
56 class TypeAry;
57 class TypeTuple;
58 class TypeVect;
59 class TypeVectA;
60 class TypeVectS;
61 class TypeVectD;
62 class TypeVectX;
63 class TypeVectY;
64 class TypeVectZ;
65 class TypeVectMask;
66 class TypePtr;
67 class TypeRawPtr;
68 class TypeOopPtr;
69 class TypeInstPtr;
70 class TypeAryPtr;
71 class TypeKlassPtr;
72 class TypeInstKlassPtr;
73 class TypeAryKlassPtr;
74 class TypeMetadataPtr;
75 class VerifyMeet;
76
77 //------------------------------Type-------------------------------------------
78 // Basic Type object, represents a set of primitive Values.
79 // Types are hash-cons'd into a private class dictionary, so only one of each
80 // different kind of Type exists. Types are never modified after creation, so
81 // all their interesting fields are constant.
82 class Type {
83 friend class VMStructs;
84
85 public:
86 enum TYPES {
87 Bad=0, // Type check
88 Control, // Control of code (not in lattice)
89 Top, // Top of the lattice
90 Int, // Integer range (lo-hi)
91 Long, // Long integer range (lo-hi)
92 Half, // Placeholder half of doubleword
93 NarrowOop, // Compressed oop pointer
94 NarrowKlass, // Compressed klass pointer
95
96 Tuple, // Method signature or object layout
97 Array, // Array types
98
99 Interfaces, // Set of implemented interfaces for oop types
100
101 VectorMask, // Vector predicate/mask type
102 VectorA, // (Scalable) Vector types for vector length agnostic
103 VectorS, // 32bit Vector types
104 VectorD, // 64bit Vector types
105 VectorX, // 128bit Vector types
106 VectorY, // 256bit Vector types
107 VectorZ, // 512bit Vector types
108
109 AnyPtr, // Any old raw, klass, inst, or array pointer
110 RawPtr, // Raw (non-oop) pointers
111 OopPtr, // Any and all Java heap entities
112 InstPtr, // Instance pointers (non-array objects)
113 AryPtr, // Array pointers
114 // (Ptr order matters: See is_ptr, isa_ptr, is_oopptr, isa_oopptr.)
115
116 MetadataPtr, // Generic metadata
117 KlassPtr, // Klass pointers
118 InstKlassPtr,
119 AryKlassPtr,
120
121 Function, // Function signature
122 Abio, // Abstract I/O
123 Return_Address, // Subroutine return address
124 Memory, // Abstract store
125 FloatTop, // No float value
126 FloatCon, // Floating point constant
127 FloatBot, // Any float value
128 DoubleTop, // No double value
129 DoubleCon, // Double precision constant
130 DoubleBot, // Any double value
131 Bottom, // Bottom of lattice
132 lastype // Bogus ending type (not in lattice)
133 };
134
135 // Signal values for offsets from a base pointer
136 enum OFFSET_SIGNALS {
137 OffsetTop = -2000000000, // undefined offset
138 OffsetBot = -2000000001 // any possible offset
139 };
140
141 class Offset {
142 private:
143 int _offset;
144
145 public:
146 explicit Offset(int offset) : _offset(offset) {}
147
148 const Offset meet(const Offset other) const;
149 const Offset dual() const;
150 const Offset add(intptr_t offset) const;
151 bool operator==(const Offset& other) const {
152 return _offset == other._offset;
153 }
154 bool operator!=(const Offset& other) const {
155 return _offset != other._offset;
156 }
157 int get() const { return _offset; }
158
159 void dump2(outputStream *st) const;
160
161 static const Offset top;
162 static const Offset bottom;
163 };
164
165 // Min and max WIDEN values.
166 enum WIDEN {
167 WidenMin = 0,
168 WidenMax = 3
169 };
170
171 private:
172 typedef struct {
173 TYPES dual_type;
174 BasicType basic_type;
175 const char* msg;
176 bool isa_oop;
177 uint ideal_reg;
178 relocInfo::relocType reloc;
179 } TypeInfo;
180
181 // Dictionary of types shared among compilations.
182 static Dict* _shared_type_dict;
183 static const TypeInfo _type_info[];
184
185 static int uhash( const Type *const t );
186 // Structural equality check. Assumes that equals() has already compared
187 // the _base types and thus knows it can cast 't' appropriately.
188 virtual bool eq( const Type *t ) const;
189
190 // Top-level hash-table of types
191 static Dict *type_dict() {
192 return Compile::current()->type_dict();
193 }
194
195 // DUAL operation: reflect around lattice centerline. Used instead of
196 // join to ensure my lattice is symmetric up and down. Dual is computed
197 // lazily, on demand, and cached in _dual.
198 const Type *_dual; // Cached dual value
199
200
201 const Type *meet_helper(const Type *t, bool include_speculative) const;
202 void check_symmetrical(const Type* t, const Type* mt, const VerifyMeet& verify) const NOT_DEBUG_RETURN;
203
204 protected:
205 // Each class of type is also identified by its base.
206 const TYPES _base; // Enum of Types type
207
208 Type( TYPES t ) : _dual(nullptr), _base(t) {} // Simple types
209 // ~Type(); // Use fast deallocation
210 const Type *hashcons(); // Hash-cons the type
211 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
212 const Type *join_helper(const Type *t, bool include_speculative) const {
213 assert_type_verify_empty();
214 return dual()->meet_helper(t->dual(), include_speculative)->dual();
215 }
216
217 void assert_type_verify_empty() const NOT_DEBUG_RETURN;
218
219 public:
220
221 inline void* operator new( size_t x ) throw() {
222 Compile* compile = Compile::current();
223 compile->set_type_last_size(x);
224 return compile->type_arena()->AmallocWords(x);
225 }
226 inline void operator delete( void* ptr ) {
227 Compile* compile = Compile::current();
228 compile->type_arena()->Afree(ptr,compile->type_last_size());
229 }
230
231 // Initialize the type system for a particular compilation.
232 static void Initialize(Compile* compile);
233
234 // Initialize the types shared by all compilations.
235 static void Initialize_shared(Compile* compile);
236
237 TYPES base() const {
238 assert(_base > Bad && _base < lastype, "sanity");
239 return _base;
240 }
241
242 // Create a new hash-consd type
243 static const Type *make(enum TYPES);
244 // Test for equivalence of types
245 static bool equals(const Type* t1, const Type* t2);
246 // Test for higher or equal in lattice
247 // Variant that drops the speculative part of the types
248 bool higher_equal(const Type* t) const {
249 return equals(meet(t), t->remove_speculative());
250 }
251 // Variant that keeps the speculative part of the types
252 bool higher_equal_speculative(const Type* t) const {
253 return equals(meet_speculative(t), t);
254 }
255
256 // MEET operation; lower in lattice.
257 // Variant that drops the speculative part of the types
258 const Type *meet(const Type *t) const {
259 return meet_helper(t, false);
260 }
261 // Variant that keeps the speculative part of the types
262 const Type *meet_speculative(const Type *t) const {
263 return meet_helper(t, true)->cleanup_speculative();
264 }
265 // WIDEN: 'widens' for Ints and other range types
266 virtual const Type *widen( const Type *old, const Type* limit ) const { return this; }
267 // NARROW: complement for widen, used by pessimistic phases
268 virtual const Type *narrow( const Type *old ) const { return this; }
269
270 // DUAL operation: reflect around lattice centerline. Used instead of
271 // join to ensure my lattice is symmetric up and down.
272 const Type *dual() const { return _dual; }
273
274 // Compute meet dependent on base type
275 virtual const Type *xmeet( const Type *t ) const;
276 virtual const Type *xdual() const; // Compute dual right now.
277
278 // JOIN operation; higher in lattice. Done by finding the dual of the
279 // meet of the dual of the 2 inputs.
280 // Variant that drops the speculative part of the types
281 const Type *join(const Type *t) const {
282 return join_helper(t, false);
283 }
284 // Variant that keeps the speculative part of the types
285 const Type *join_speculative(const Type *t) const {
286 return join_helper(t, true)->cleanup_speculative();
287 }
288
289 // Modified version of JOIN adapted to the needs Node::Value.
290 // Normalizes all empty values to TOP. Does not kill _widen bits.
291 // Variant that drops the speculative part of the types
292 const Type *filter(const Type *kills) const {
293 return filter_helper(kills, false);
294 }
295 // Variant that keeps the speculative part of the types
296 const Type *filter_speculative(const Type *kills) const {
297 return filter_helper(kills, true)->cleanup_speculative();
298 }
299
300 // Returns true if this pointer points at memory which contains a
301 // compressed oop references.
302 bool is_ptr_to_narrowoop() const;
303 bool is_ptr_to_narrowklass() const;
304
305 // Convenience access
306 float getf() const;
307 double getd() const;
308
309 const TypeInt *is_int() const;
310 const TypeInt *isa_int() const; // Returns null if not an Int
311 const TypeInteger* is_integer(BasicType bt) const;
312 const TypeInteger* isa_integer(BasicType bt) const;
313 const TypeLong *is_long() const;
314 const TypeLong *isa_long() const; // Returns null if not a Long
315 const TypeD *isa_double() const; // Returns null if not a Double{Top,Con,Bot}
316 const TypeD *is_double_constant() const; // Asserts it is a DoubleCon
317 const TypeD *isa_double_constant() const; // Returns null if not a DoubleCon
318 const TypeF *isa_float() const; // Returns null if not a Float{Top,Con,Bot}
319 const TypeF *is_float_constant() const; // Asserts it is a FloatCon
320 const TypeF *isa_float_constant() const; // Returns null if not a FloatCon
321 const TypeTuple *is_tuple() const; // Collection of fields, NOT a pointer
322 const TypeAry *is_ary() const; // Array, NOT array pointer
323 const TypeAry *isa_ary() const; // Returns null of not ary
324 const TypeVect *is_vect() const; // Vector
325 const TypeVect *isa_vect() const; // Returns null if not a Vector
326 const TypeVectMask *is_vectmask() const; // Predicate/Mask Vector
327 const TypeVectMask *isa_vectmask() const; // Returns null if not a Vector Predicate/Mask
328 const TypePtr *is_ptr() const; // Asserts it is a ptr type
329 const TypePtr *isa_ptr() const; // Returns null if not ptr type
330 const TypeRawPtr *isa_rawptr() const; // NOT Java oop
331 const TypeRawPtr *is_rawptr() const; // Asserts is rawptr
332 const TypeNarrowOop *is_narrowoop() const; // Java-style GC'd pointer
333 const TypeNarrowOop *isa_narrowoop() const; // Returns null if not oop ptr type
334 const TypeNarrowKlass *is_narrowklass() const; // compressed klass pointer
335 const TypeNarrowKlass *isa_narrowklass() const;// Returns null if not oop ptr type
336 const TypeOopPtr *isa_oopptr() const; // Returns null if not oop ptr type
337 const TypeOopPtr *is_oopptr() const; // Java-style GC'd pointer
338 const TypeInstPtr *isa_instptr() const; // Returns null if not InstPtr
339 const TypeInstPtr *is_instptr() const; // Instance
340 const TypeAryPtr *isa_aryptr() const; // Returns null if not AryPtr
341 const TypeAryPtr *is_aryptr() const; // Array oop
342
343 const TypeMetadataPtr *isa_metadataptr() const; // Returns null if not oop ptr type
344 const TypeMetadataPtr *is_metadataptr() const; // Java-style GC'd pointer
345 const TypeKlassPtr *isa_klassptr() const; // Returns null if not KlassPtr
346 const TypeKlassPtr *is_klassptr() const; // assert if not KlassPtr
347 const TypeInstKlassPtr *isa_instklassptr() const; // Returns null if not IntKlassPtr
348 const TypeInstKlassPtr *is_instklassptr() const; // assert if not IntKlassPtr
349 const TypeAryKlassPtr *isa_aryklassptr() const; // Returns null if not AryKlassPtr
350 const TypeAryKlassPtr *is_aryklassptr() const; // assert if not AryKlassPtr
351
352 virtual bool is_finite() const; // Has a finite value
353 virtual bool is_nan() const; // Is not a number (NaN)
354
355 bool is_inlinetypeptr() const;
356 virtual ciInlineKlass* inline_klass() const;
357
358 // Returns this ptr type or the equivalent ptr type for this compressed pointer.
359 const TypePtr* make_ptr() const;
360
361 // Returns this oopptr type or the equivalent oopptr type for this compressed pointer.
362 // Asserts if the underlying type is not an oopptr or narrowoop.
363 const TypeOopPtr* make_oopptr() const;
364
365 // Returns this compressed pointer or the equivalent compressed version
366 // of this pointer type.
367 const TypeNarrowOop* make_narrowoop() const;
368
369 // Returns this compressed klass pointer or the equivalent
370 // compressed version of this pointer type.
371 const TypeNarrowKlass* make_narrowklass() const;
372
373 // Special test for register pressure heuristic
374 bool is_floatingpoint() const; // True if Float or Double base type
375
376 // Do you have memory, directly or through a tuple?
377 bool has_memory( ) const;
378
379 // TRUE if type is a singleton
380 virtual bool singleton(void) const;
381
382 // TRUE if type is above the lattice centerline, and is therefore vacuous
383 virtual bool empty(void) const;
384
385 // Return a hash for this type. The hash function is public so ConNode
386 // (constants) can hash on their constant, which is represented by a Type.
387 virtual uint hash() const;
388
389 // Map ideal registers (machine types) to ideal types
390 static const Type *mreg2type[];
391
392 // Printing, statistics
393 #ifndef PRODUCT
394 void dump_on(outputStream *st) const;
395 void dump() const {
396 dump_on(tty);
397 }
398 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
399 static void dump_stats();
400 // Groups of types, for debugging and visualization only.
401 enum class Category {
402 Data,
403 Memory,
404 Mixed, // Tuples with types of different categories.
405 Control,
406 Other, // {Type::Top, Type::Abio, Type::Bottom}.
407 Undef // {Type::Bad, Type::lastype}, for completeness.
408 };
409 // Return the category of this type.
410 Category category() const;
411 // Check recursively in tuples.
412 bool has_category(Category cat) const;
413
414 static const char* str(const Type* t);
415 #endif // !PRODUCT
416 void typerr(const Type *t) const; // Mixing types error
417
418 // Create basic type
419 static const Type* get_const_basic_type(BasicType type) {
420 assert((uint)type <= T_CONFLICT && _const_basic_type[type] != nullptr, "bad type");
421 return _const_basic_type[type];
422 }
423
424 // For two instance arrays of same dimension, return the base element types.
425 // Otherwise or if the arrays have different dimensions, return null.
426 static void get_arrays_base_elements(const Type *a1, const Type *a2,
427 const TypeInstPtr **e1, const TypeInstPtr **e2);
428
429 // Mapping to the array element's basic type.
430 BasicType array_element_basic_type() const;
431
432 enum InterfaceHandling {
433 trust_interfaces,
434 ignore_interfaces
435 };
436 // Create standard type for a ciType:
437 static const Type* get_const_type(ciType* type, InterfaceHandling interface_handling = ignore_interfaces);
438
439 // Create standard zero value:
440 static const Type* get_zero_type(BasicType type) {
441 assert((uint)type <= T_CONFLICT && _zero_type[type] != nullptr, "bad type");
442 return _zero_type[type];
443 }
444
445 // Report if this is a zero value (not top).
446 bool is_zero_type() const {
447 BasicType type = basic_type();
448 if (type == T_VOID || type >= T_CONFLICT)
449 return false;
450 else
451 return (this == _zero_type[type]);
452 }
453
454 // Convenience common pre-built types.
455 static const Type *ABIO;
456 static const Type *BOTTOM;
457 static const Type *CONTROL;
458 static const Type *DOUBLE;
459 static const Type *FLOAT;
460 static const Type *HALF;
461 static const Type *MEMORY;
462 static const Type *MULTI;
463 static const Type *RETURN_ADDRESS;
464 static const Type *TOP;
465
466 // Mapping from compiler type to VM BasicType
467 BasicType basic_type() const { return _type_info[_base].basic_type; }
468 uint ideal_reg() const { return _type_info[_base].ideal_reg; }
469 const char* msg() const { return _type_info[_base].msg; }
470 bool isa_oop_ptr() const { return _type_info[_base].isa_oop; }
471 relocInfo::relocType reloc() const { return _type_info[_base].reloc; }
472
473 // Mapping from CI type system to compiler type:
474 static const Type* get_typeflow_type(ciType* type);
475
476 static const Type* make_from_constant(ciConstant constant,
477 bool require_constant = false,
478 int stable_dimension = 0,
479 bool is_narrow = false,
480 bool is_autobox_cache = false);
481
482 static const Type* make_constant_from_field(ciInstance* holder,
483 int off,
484 bool is_unsigned_load,
485 BasicType loadbt);
486
487 static const Type* make_constant_from_field(ciField* field,
488 ciInstance* holder,
489 BasicType loadbt,
490 bool is_unsigned_load);
491
492 static const Type* make_constant_from_array_element(ciArray* array,
493 int off,
494 int stable_dimension,
495 BasicType loadbt,
496 bool is_unsigned_load);
497
498 // Speculative type helper methods. See TypePtr.
499 virtual const TypePtr* speculative() const { return nullptr; }
500 virtual ciKlass* speculative_type() const { return nullptr; }
501 virtual ciKlass* speculative_type_not_null() const { return nullptr; }
502 virtual bool speculative_maybe_null() const { return true; }
503 virtual bool speculative_always_null() const { return true; }
504 virtual const Type* remove_speculative() const { return this; }
505 virtual const Type* cleanup_speculative() const { return this; }
506 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const { return exact_kls != nullptr; }
507 virtual bool would_improve_ptr(ProfilePtrKind ptr_kind) const { return ptr_kind == ProfileAlwaysNull || ptr_kind == ProfileNeverNull; }
508 const Type* maybe_remove_speculative(bool include_speculative) const;
509
510 virtual bool maybe_null() const { return true; }
511 virtual bool is_known_instance() const { return false; }
512
513 private:
514 // support arrays
515 static const Type* _zero_type[T_CONFLICT+1];
516 static const Type* _const_basic_type[T_CONFLICT+1];
517 };
518
519 //------------------------------TypeF------------------------------------------
520 // Class of Float-Constant Types.
521 class TypeF : public Type {
522 TypeF( float f ) : Type(FloatCon), _f(f) {};
523 public:
524 virtual bool eq( const Type *t ) const;
525 virtual uint hash() const; // Type specific hashing
526 virtual bool singleton(void) const; // TRUE if type is a singleton
527 virtual bool empty(void) const; // TRUE if type is vacuous
528 public:
529 const float _f; // Float constant
530
531 static const TypeF *make(float f);
532
533 virtual bool is_finite() const; // Has a finite value
534 virtual bool is_nan() const; // Is not a number (NaN)
535
536 virtual const Type *xmeet( const Type *t ) const;
537 virtual const Type *xdual() const; // Compute dual right now.
538 // Convenience common pre-built types.
539 static const TypeF *MAX;
540 static const TypeF *MIN;
541 static const TypeF *ZERO; // positive zero only
542 static const TypeF *ONE;
543 static const TypeF *POS_INF;
544 static const TypeF *NEG_INF;
545 #ifndef PRODUCT
546 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
547 #endif
548 };
549
550 //------------------------------TypeD------------------------------------------
551 // Class of Double-Constant Types.
552 class TypeD : public Type {
553 TypeD( double d ) : Type(DoubleCon), _d(d) {};
554 public:
555 virtual bool eq( const Type *t ) const;
556 virtual uint hash() const; // Type specific hashing
557 virtual bool singleton(void) const; // TRUE if type is a singleton
558 virtual bool empty(void) const; // TRUE if type is vacuous
559 public:
560 const double _d; // Double constant
561
562 static const TypeD *make(double d);
563
564 virtual bool is_finite() const; // Has a finite value
565 virtual bool is_nan() const; // Is not a number (NaN)
566
567 virtual const Type *xmeet( const Type *t ) const;
568 virtual const Type *xdual() const; // Compute dual right now.
569 // Convenience common pre-built types.
570 static const TypeD *MAX;
571 static const TypeD *MIN;
572 static const TypeD *ZERO; // positive zero only
573 static const TypeD *ONE;
574 static const TypeD *POS_INF;
575 static const TypeD *NEG_INF;
576 #ifndef PRODUCT
577 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
578 #endif
579 };
580
581 class TypeInteger : public Type {
582 protected:
583 TypeInteger(TYPES t, int w) : Type(t), _widen(w) {}
584
585 public:
586 const short _widen; // Limit on times we widen this sucker
587
588 virtual jlong hi_as_long() const = 0;
589 virtual jlong lo_as_long() const = 0;
590 jlong get_con_as_long(BasicType bt) const;
591 bool is_con() const { return lo_as_long() == hi_as_long(); }
592 virtual short widen_limit() const { return _widen; }
593
594 static const TypeInteger* make(jlong lo, jlong hi, int w, BasicType bt);
595
596 static const TypeInteger* bottom(BasicType type);
597 static const TypeInteger* zero(BasicType type);
598 static const TypeInteger* one(BasicType type);
599 static const TypeInteger* minus_1(BasicType type);
600 };
601
602
603
604 //------------------------------TypeInt----------------------------------------
605 // Class of integer ranges, the set of integers between a lower bound and an
606 // upper bound, inclusive.
607 class TypeInt : public TypeInteger {
608 TypeInt( jint lo, jint hi, int w );
609 protected:
610 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
611
612 public:
613 typedef jint NativeType;
614 virtual bool eq( const Type *t ) const;
615 virtual uint hash() const; // Type specific hashing
616 virtual bool singleton(void) const; // TRUE if type is a singleton
617 virtual bool empty(void) const; // TRUE if type is vacuous
618 const jint _lo, _hi; // Lower bound, upper bound
619
620 static const TypeInt *make(jint lo);
621 // must always specify w
622 static const TypeInt *make(jint lo, jint hi, int w);
623
624 // Check for single integer
625 bool is_con() const { return _lo==_hi; }
626 bool is_con(jint i) const { return is_con() && _lo == i; }
627 jint get_con() const { assert(is_con(), "" ); return _lo; }
628
629 virtual bool is_finite() const; // Has a finite value
630
631 virtual const Type *xmeet( const Type *t ) const;
632 virtual const Type *xdual() const; // Compute dual right now.
633 virtual const Type *widen( const Type *t, const Type* limit_type ) const;
634 virtual const Type *narrow( const Type *t ) const;
635
636 virtual jlong hi_as_long() const { return _hi; }
637 virtual jlong lo_as_long() const { return _lo; }
638
639 // Do not kill _widen bits.
640 // Convenience common pre-built types.
641 static const TypeInt *MAX;
642 static const TypeInt *MIN;
643 static const TypeInt *MINUS_1;
644 static const TypeInt *ZERO;
645 static const TypeInt *ONE;
646 static const TypeInt *BOOL;
647 static const TypeInt *CC;
648 static const TypeInt *CC_LT; // [-1] == MINUS_1
649 static const TypeInt *CC_GT; // [1] == ONE
650 static const TypeInt *CC_EQ; // [0] == ZERO
651 static const TypeInt *CC_LE; // [-1,0]
652 static const TypeInt *CC_GE; // [0,1] == BOOL (!)
653 static const TypeInt *BYTE;
654 static const TypeInt *UBYTE;
655 static const TypeInt *CHAR;
656 static const TypeInt *SHORT;
657 static const TypeInt *POS;
658 static const TypeInt *POS1;
659 static const TypeInt *INT;
660 static const TypeInt *SYMINT; // symmetric range [-max_jint..max_jint]
661 static const TypeInt *TYPE_DOMAIN; // alias for TypeInt::INT
662
663 static const TypeInt *as_self(const Type *t) { return t->is_int(); }
664 #ifndef PRODUCT
665 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
666 #endif
667 };
668
669
670 //------------------------------TypeLong---------------------------------------
671 // Class of long integer ranges, the set of integers between a lower bound and
672 // an upper bound, inclusive.
673 class TypeLong : public TypeInteger {
674 TypeLong( jlong lo, jlong hi, int w );
675 protected:
676 // Do not kill _widen bits.
677 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
678 public:
679 typedef jlong NativeType;
680 virtual bool eq( const Type *t ) const;
681 virtual uint hash() const; // Type specific hashing
682 virtual bool singleton(void) const; // TRUE if type is a singleton
683 virtual bool empty(void) const; // TRUE if type is vacuous
684 public:
685 const jlong _lo, _hi; // Lower bound, upper bound
686
687 static const TypeLong *make(jlong lo);
688 // must always specify w
689 static const TypeLong *make(jlong lo, jlong hi, int w);
690
691 // Check for single integer
692 bool is_con() const { return _lo==_hi; }
693 bool is_con(jlong i) const { return is_con() && _lo == i; }
694 jlong get_con() const { assert(is_con(), "" ); return _lo; }
695
696 // Check for positive 32-bit value.
697 int is_positive_int() const { return _lo >= 0 && _hi <= (jlong)max_jint; }
698
699 virtual bool is_finite() const; // Has a finite value
700
701 virtual jlong hi_as_long() const { return _hi; }
702 virtual jlong lo_as_long() const { return _lo; }
703
704 virtual const Type *xmeet( const Type *t ) const;
705 virtual const Type *xdual() const; // Compute dual right now.
706 virtual const Type *widen( const Type *t, const Type* limit_type ) const;
707 virtual const Type *narrow( const Type *t ) const;
708 // Convenience common pre-built types.
709 static const TypeLong *MAX;
710 static const TypeLong *MIN;
711 static const TypeLong *MINUS_1;
712 static const TypeLong *ZERO;
713 static const TypeLong *ONE;
714 static const TypeLong *POS;
715 static const TypeLong *LONG;
716 static const TypeLong *INT; // 32-bit subrange [min_jint..max_jint]
717 static const TypeLong *UINT; // 32-bit unsigned [0..max_juint]
718 static const TypeLong *TYPE_DOMAIN; // alias for TypeLong::LONG
719
720 // static convenience methods.
721 static const TypeLong *as_self(const Type *t) { return t->is_long(); }
722
723 #ifndef PRODUCT
724 virtual void dump2( Dict &d, uint, outputStream *st ) const;// Specialized per-Type dumping
725 #endif
726 };
727
728 //------------------------------TypeTuple--------------------------------------
729 // Class of Tuple Types, essentially type collections for function signatures
730 // and class layouts. It happens to also be a fast cache for the HotSpot
731 // signature types.
732 class TypeTuple : public Type {
733 TypeTuple( uint cnt, const Type **fields ) : Type(Tuple), _cnt(cnt), _fields(fields) { }
734
735 const uint _cnt; // Count of fields
736 const Type ** const _fields; // Array of field types
737
738 public:
739 virtual bool eq( const Type *t ) const;
740 virtual uint hash() const; // Type specific hashing
741 virtual bool singleton(void) const; // TRUE if type is a singleton
742 virtual bool empty(void) const; // TRUE if type is vacuous
743
744 // Accessors:
745 uint cnt() const { return _cnt; }
746 const Type* field_at(uint i) const {
747 assert(i < _cnt, "oob");
748 return _fields[i];
749 }
750 void set_field_at(uint i, const Type* t) {
751 assert(i < _cnt, "oob");
752 _fields[i] = t;
753 }
754
755 static const TypeTuple *make( uint cnt, const Type **fields );
756 static const TypeTuple *make_range(ciSignature* sig, InterfaceHandling interface_handling = ignore_interfaces, bool ret_vt_fields = false);
757 static const TypeTuple *make_domain(ciMethod* method, InterfaceHandling interface_handling, bool vt_fields_as_args = false);
758
759 // Subroutine call type with space allocated for argument types
760 // Memory for Control, I_O, Memory, FramePtr, and ReturnAdr is allocated implicitly
761 static const Type **fields( uint arg_cnt );
762
763 virtual const Type *xmeet( const Type *t ) const;
764 virtual const Type *xdual() const; // Compute dual right now.
765 // Convenience common pre-built types.
766 static const TypeTuple *IFBOTH;
767 static const TypeTuple *IFFALSE;
768 static const TypeTuple *IFTRUE;
769 static const TypeTuple *IFNEITHER;
770 static const TypeTuple *LOOPBODY;
771 static const TypeTuple *MEMBAR;
772 static const TypeTuple *STORECONDITIONAL;
773 static const TypeTuple *START_I2C;
774 static const TypeTuple *INT_PAIR;
775 static const TypeTuple *LONG_PAIR;
776 static const TypeTuple *INT_CC_PAIR;
777 static const TypeTuple *LONG_CC_PAIR;
778 #ifndef PRODUCT
779 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping
780 #endif
781 };
782
783 //------------------------------TypeAry----------------------------------------
784 // Class of Array Types
785 class TypeAry : public Type {
786 TypeAry(const Type* elem, const TypeInt* size, bool stable, bool flat, bool not_flat, bool not_null_free) : Type(Array),
787 _elem(elem), _size(size), _stable(stable), _flat(flat), _not_flat(not_flat), _not_null_free(not_null_free) {}
788 public:
789 virtual bool eq( const Type *t ) const;
790 virtual uint hash() const; // Type specific hashing
791 virtual bool singleton(void) const; // TRUE if type is a singleton
792 virtual bool empty(void) const; // TRUE if type is vacuous
793
794 private:
795 const Type *_elem; // Element type of array
796 const TypeInt *_size; // Elements in array
797 const bool _stable; // Are elements @Stable?
798
799 // Inline type array properties
800 const bool _flat; // Array is flat
801 const bool _not_flat; // Array is never flat
802 const bool _not_null_free; // Array is never null-free
803
804 friend class TypeAryPtr;
805
806 public:
807 static const TypeAry* make(const Type* elem, const TypeInt* size, bool stable = false,
808 bool flat = false, bool not_flat = false, bool not_null_free = false);
809
810 virtual const Type *xmeet( const Type *t ) const;
811 virtual const Type *xdual() const; // Compute dual right now.
812 bool ary_must_be_exact() const; // true if arrays of such are never generic
813 virtual const TypeAry* remove_speculative() const;
814 virtual const Type* cleanup_speculative() const;
815 #ifndef PRODUCT
816 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping
817 #endif
818 };
819
820 //------------------------------TypeVect---------------------------------------
821 // Class of Vector Types
822 class TypeVect : public Type {
823 const BasicType _elem_bt; // Vector's element type
824 const uint _length; // Elements in vector (power of 2)
825
826 protected:
827 TypeVect(TYPES t, BasicType elem_bt, uint length) : Type(t),
828 _elem_bt(elem_bt), _length(length) {}
829
830 public:
831 BasicType element_basic_type() const { return _elem_bt; }
832 uint length() const { return _length; }
833 uint length_in_bytes() const {
834 return _length * type2aelembytes(element_basic_type());
835 }
836
837 virtual bool eq(const Type* t) const;
838 virtual uint hash() const; // Type specific hashing
839 virtual bool singleton(void) const; // TRUE if type is a singleton
840 virtual bool empty(void) const; // TRUE if type is vacuous
841
842 static const TypeVect* make(const BasicType elem_bt, uint length, bool is_mask = false);
843 static const TypeVect* makemask(const BasicType elem_bt, uint length);
844
845 virtual const Type* xmeet( const Type *t) const;
846 virtual const Type* xdual() const; // Compute dual right now.
847
848 static const TypeVect* VECTA;
849 static const TypeVect* VECTS;
850 static const TypeVect* VECTD;
851 static const TypeVect* VECTX;
852 static const TypeVect* VECTY;
853 static const TypeVect* VECTZ;
854 static const TypeVect* VECTMASK;
855
856 #ifndef PRODUCT
857 virtual void dump2(Dict& d, uint, outputStream* st) const; // Specialized per-Type dumping
858 #endif
859 };
860
861 class TypeVectA : public TypeVect {
862 friend class TypeVect;
863 TypeVectA(BasicType elem_bt, uint length) : TypeVect(VectorA, elem_bt, length) {}
864 };
865
866 class TypeVectS : public TypeVect {
867 friend class TypeVect;
868 TypeVectS(BasicType elem_bt, uint length) : TypeVect(VectorS, elem_bt, length) {}
869 };
870
871 class TypeVectD : public TypeVect {
872 friend class TypeVect;
873 TypeVectD(BasicType elem_bt, uint length) : TypeVect(VectorD, elem_bt, length) {}
874 };
875
876 class TypeVectX : public TypeVect {
877 friend class TypeVect;
878 TypeVectX(BasicType elem_bt, uint length) : TypeVect(VectorX, elem_bt, length) {}
879 };
880
881 class TypeVectY : public TypeVect {
882 friend class TypeVect;
883 TypeVectY(BasicType elem_bt, uint length) : TypeVect(VectorY, elem_bt, length) {}
884 };
885
886 class TypeVectZ : public TypeVect {
887 friend class TypeVect;
888 TypeVectZ(BasicType elem_bt, uint length) : TypeVect(VectorZ, elem_bt, length) {}
889 };
890
891 class TypeVectMask : public TypeVect {
892 public:
893 friend class TypeVect;
894 TypeVectMask(BasicType elem_bt, uint length) : TypeVect(VectorMask, elem_bt, length) {}
895 static const TypeVectMask* make(const BasicType elem_bt, uint length);
896 };
897
898 // Set of implemented interfaces. Referenced from TypeOopPtr and TypeKlassPtr.
899 class TypeInterfaces : public Type {
900 private:
901 GrowableArrayFromArray<ciInstanceKlass*> _interfaces;
902 uint _hash;
903 ciInstanceKlass* _exact_klass;
904 DEBUG_ONLY(bool _initialized;)
905
906 void initialize();
907
908 void verify() const NOT_DEBUG_RETURN;
909 void compute_hash();
910 void compute_exact_klass();
911
912 TypeInterfaces(ciInstanceKlass** interfaces_base, int nb_interfaces);
913
914 NONCOPYABLE(TypeInterfaces);
915 public:
916 static const TypeInterfaces* make(GrowableArray<ciInstanceKlass*>* interfaces = nullptr);
917 bool eq(const Type* other) const;
918 bool eq(ciInstanceKlass* k) const;
919 uint hash() const;
920 const Type *xdual() const;
921 void dump(outputStream* st) const;
922 const TypeInterfaces* union_with(const TypeInterfaces* other) const;
923 const TypeInterfaces* intersection_with(const TypeInterfaces* other) const;
924 bool contains(const TypeInterfaces* other) const {
925 return intersection_with(other)->eq(other);
926 }
927 bool empty() const { return _interfaces.length() == 0; }
928
929 ciInstanceKlass* exact_klass() const;
930 void verify_is_loaded() const NOT_DEBUG_RETURN;
931
932 static int compare(ciInstanceKlass* const& k1, ciInstanceKlass* const& k2);
933 static int compare(ciInstanceKlass** k1, ciInstanceKlass** k2);
934
935 const Type* xmeet(const Type* t) const;
936
937 bool singleton(void) const;
938 };
939
940 //------------------------------TypePtr----------------------------------------
941 // Class of machine Pointer Types: raw data, instances or arrays.
942 // If the _base enum is AnyPtr, then this refers to all of the above.
943 // Otherwise the _base will indicate which subset of pointers is affected,
944 // and the class will be inherited from.
945 class TypePtr : public Type {
946 friend class TypeNarrowPtr;
947 friend class Type;
948 protected:
949 static const TypeInterfaces* interfaces(ciKlass*& k, bool klass, bool interface, bool array, InterfaceHandling interface_handling);
950
951 public:
952 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR };
953 protected:
954 TypePtr(TYPES t, PTR ptr, Offset offset,
955 const TypePtr* speculative = nullptr,
956 int inline_depth = InlineDepthBottom) :
957 Type(t), _speculative(speculative), _inline_depth(inline_depth), _offset(offset),
958 _ptr(ptr) {}
959 static const PTR ptr_meet[lastPTR][lastPTR];
960 static const PTR ptr_dual[lastPTR];
961 static const char * const ptr_msg[lastPTR];
962
963 enum {
964 InlineDepthBottom = INT_MAX,
965 InlineDepthTop = -InlineDepthBottom
966 };
967
968 // Extra type information profiling gave us. We propagate it the
969 // same way the rest of the type info is propagated. If we want to
970 // use it, then we have to emit a guard: this part of the type is
971 // not something we know but something we speculate about the type.
972 const TypePtr* _speculative;
973 // For speculative types, we record at what inlining depth the
974 // profiling point that provided the data is. We want to favor
975 // profile data coming from outer scopes which are likely better for
976 // the current compilation.
977 int _inline_depth;
978
979 // utility methods to work on the speculative part of the type
980 const TypePtr* dual_speculative() const;
981 const TypePtr* xmeet_speculative(const TypePtr* other) const;
982 bool eq_speculative(const TypePtr* other) const;
983 int hash_speculative() const;
984 const TypePtr* add_offset_speculative(intptr_t offset) const;
985 const TypePtr* with_offset_speculative(intptr_t offset) const;
986 #ifndef PRODUCT
987 void dump_speculative(outputStream *st) const;
988 #endif
989
990 // utility methods to work on the inline depth of the type
991 int dual_inline_depth() const;
992 int meet_inline_depth(int depth) const;
993 #ifndef PRODUCT
994 void dump_inline_depth(outputStream *st) const;
995 #endif
996
997 // TypeInstPtr (TypeAryPtr resp.) and TypeInstKlassPtr (TypeAryKlassPtr resp.) implement very similar meet logic.
998 // The logic for meeting 2 instances (2 arrays resp.) is shared in the 2 utility methods below. However the logic for
999 // the oop and klass versions can be slightly different and extra logic may have to be executed depending on what
1000 // exact case the meet falls into. The MeetResult struct is used by the utility methods to communicate what case was
1001 // encountered so the right logic specific to klasses or oops can be executed.,
1002 enum MeetResult {
1003 QUICK,
1004 UNLOADED,
1005 SUBTYPE,
1006 NOT_SUBTYPE,
1007 LCA
1008 };
1009 template<class T> static TypePtr::MeetResult meet_instptr(PTR& ptr, const TypeInterfaces*& interfaces, const T* this_type,
1010 const T* other_type, ciKlass*& res_klass, bool& res_xk, bool& res_flat_array);
1011 private:
1012 template<class T> static bool is_meet_subtype_of(const T* sub_type, const T* super_type);
1013 protected:
1014
1015 template<class T> static MeetResult meet_aryptr(PTR& ptr, const Type*& elem, const T* this_ary, const T* other_ary,
1016 ciKlass*& res_klass, bool& res_xk, bool &res_flat, bool &res_not_flat, bool &res_not_null_free);
1017
1018 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);
1019 template <class T1, class T2> static bool is_same_java_type_as_helper_for_instance(const T1* this_one, const T2* other);
1020 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);
1021 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);
1022 template <class T1, class T2> static bool is_same_java_type_as_helper_for_array(const T1* this_one, const T2* other);
1023 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);
1024 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);
1025 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);
1026 public:
1027 const Offset _offset; // Offset into oop, with TOP & BOT
1028 const PTR _ptr; // Pointer equivalence class
1029
1030 int offset() const { return _offset.get(); }
1031 PTR ptr() const { return _ptr; }
1032
1033 static const TypePtr* make(TYPES t, PTR ptr, Offset offset,
1034 const TypePtr* speculative = nullptr,
1035 int inline_depth = InlineDepthBottom);
1036
1037 // Return a 'ptr' version of this type
1038 virtual const TypePtr* cast_to_ptr_type(PTR ptr) const;
1039
1040 virtual intptr_t get_con() const;
1041
1042 Type::Offset xadd_offset(intptr_t offset) const;
1043 virtual const TypePtr* add_offset(intptr_t offset) const;
1044 virtual const TypePtr* with_offset(intptr_t offset) const;
1045 virtual int flat_offset() const { return offset(); }
1046 virtual bool eq(const Type *t) const;
1047 virtual uint hash() const; // Type specific hashing
1048
1049 virtual bool singleton(void) const; // TRUE if type is a singleton
1050 virtual bool empty(void) const; // TRUE if type is vacuous
1051 virtual const Type *xmeet( const Type *t ) const;
1052 virtual const Type *xmeet_helper( const Type *t ) const;
1053 Offset meet_offset(int offset) const;
1054 Offset dual_offset() const;
1055 virtual const Type *xdual() const; // Compute dual right now.
1056
1057 // meet, dual and join over pointer equivalence sets
1058 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; }
1059 PTR dual_ptr() const { return ptr_dual[ptr()]; }
1060
1061 // This is textually confusing unless one recalls that
1062 // join(t) == dual()->meet(t->dual())->dual().
1063 PTR join_ptr( const PTR in_ptr ) const {
1064 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ];
1065 }
1066
1067 // Speculative type helper methods.
1068 virtual const TypePtr* speculative() const { return _speculative; }
1069 int inline_depth() const { return _inline_depth; }
1070 virtual ciKlass* speculative_type() const;
1071 virtual ciKlass* speculative_type_not_null() const;
1072 virtual bool speculative_maybe_null() const;
1073 virtual bool speculative_always_null() const;
1074 virtual const TypePtr* remove_speculative() const;
1075 virtual const Type* cleanup_speculative() const;
1076 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const;
1077 virtual bool would_improve_ptr(ProfilePtrKind maybe_null) const;
1078 virtual const TypePtr* with_inline_depth(int depth) const;
1079
1080 virtual bool maybe_null() const { return meet_ptr(Null) == ptr(); }
1081
1082 virtual bool can_be_inline_type() const { return false; }
1083 virtual bool flat_in_array() const { return false; }
1084 virtual bool not_flat_in_array() const { return true; }
1085 virtual bool is_flat() const { return false; }
1086 virtual bool is_not_flat() const { return false; }
1087 virtual bool is_null_free() const { return false; }
1088 virtual bool is_not_null_free() const { return false; }
1089
1090 // Tests for relation to centerline of type lattice:
1091 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); }
1092 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); }
1093 // Convenience common pre-built types.
1094 static const TypePtr *NULL_PTR;
1095 static const TypePtr *NOTNULL;
1096 static const TypePtr *BOTTOM;
1097 #ifndef PRODUCT
1098 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1099 #endif
1100 };
1101
1102 //------------------------------TypeRawPtr-------------------------------------
1103 // Class of raw pointers, pointers to things other than Oops. Examples
1104 // include the stack pointer, top of heap, card-marking area, handles, etc.
1105 class TypeRawPtr : public TypePtr {
1106 protected:
1107 TypeRawPtr(PTR ptr, address bits) : TypePtr(RawPtr,ptr,Offset(0)), _bits(bits){}
1108 public:
1109 virtual bool eq( const Type *t ) const;
1110 virtual uint hash() const; // Type specific hashing
1111
1112 const address _bits; // Constant value, if applicable
1113
1114 static const TypeRawPtr *make( PTR ptr );
1115 static const TypeRawPtr *make( address bits );
1116
1117 // Return a 'ptr' version of this type
1118 virtual const TypeRawPtr* cast_to_ptr_type(PTR ptr) const;
1119
1120 virtual intptr_t get_con() const;
1121
1122 virtual const TypePtr* add_offset(intptr_t offset) const;
1123 virtual const TypeRawPtr* with_offset(intptr_t offset) const { ShouldNotReachHere(); return nullptr;}
1124
1125 virtual const Type *xmeet( const Type *t ) const;
1126 virtual const Type *xdual() const; // Compute dual right now.
1127 // Convenience common pre-built types.
1128 static const TypeRawPtr *BOTTOM;
1129 static const TypeRawPtr *NOTNULL;
1130 #ifndef PRODUCT
1131 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1132 #endif
1133 };
1134
1135 //------------------------------TypeOopPtr-------------------------------------
1136 // Some kind of oop (Java pointer), either instance or array.
1137 class TypeOopPtr : public TypePtr {
1138 friend class TypeAry;
1139 friend class TypePtr;
1140 friend class TypeInstPtr;
1141 friend class TypeAryPtr;
1142 protected:
1143 TypeOopPtr(TYPES t, PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, bool xk, ciObject* o, Offset offset, Offset field_offset, int instance_id,
1144 const TypePtr* speculative, int inline_depth);
1145 public:
1146 virtual bool eq( const Type *t ) const;
1147 virtual uint hash() const; // Type specific hashing
1148 virtual bool singleton(void) const; // TRUE if type is a singleton
1149 enum {
1150 InstanceTop = -1, // undefined instance
1151 InstanceBot = 0 // any possible instance
1152 };
1153 protected:
1154
1155 // Oop is null, unless this is a constant oop.
1156 ciObject* _const_oop; // Constant oop
1157 // If _klass is null, then so is _sig. This is an unloaded klass.
1158 ciKlass* _klass; // Klass object
1159
1160 const TypeInterfaces* _interfaces;
1161
1162 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.)
1163 bool _klass_is_exact;
1164 bool _is_ptr_to_narrowoop;
1165 bool _is_ptr_to_narrowklass;
1166 bool _is_ptr_to_boxed_value;
1167
1168 // If not InstanceTop or InstanceBot, indicates that this is
1169 // a particular instance of this type which is distinct.
1170 // This is the node index of the allocation node creating this instance.
1171 int _instance_id;
1172
1173 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact, InterfaceHandling interface_handling);
1174
1175 int dual_instance_id() const;
1176 int meet_instance_id(int uid) const;
1177
1178 const TypeInterfaces* meet_interfaces(const TypeOopPtr* other) const;
1179
1180 // Do not allow interface-vs.-noninterface joins to collapse to top.
1181 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1182
1183 virtual ciKlass* exact_klass_helper() const { return nullptr; }
1184 virtual ciKlass* klass() const { return _klass; }
1185
1186 public:
1187
1188 bool is_java_subtype_of(const TypeOopPtr* other) const {
1189 return is_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1190 }
1191
1192 bool is_same_java_type_as(const TypePtr* other) const {
1193 return is_same_java_type_as_helper(other->is_oopptr());
1194 }
1195
1196 virtual bool is_same_java_type_as_helper(const TypeOopPtr* other) const {
1197 ShouldNotReachHere(); return false;
1198 }
1199
1200 bool maybe_java_subtype_of(const TypeOopPtr* other) const {
1201 return maybe_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1202 }
1203 virtual bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1204 virtual bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1205
1206
1207 // Creates a type given a klass. Correctly handles multi-dimensional arrays
1208 // Respects UseUniqueSubclasses.
1209 // If the klass is final, the resulting type will be exact.
1210 static const TypeOopPtr* make_from_klass(ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces) {
1211 return make_from_klass_common(klass, true, false, interface_handling);
1212 }
1213 // Same as before, but will produce an exact type, even if
1214 // the klass is not final, as long as it has exactly one implementation.
1215 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass, InterfaceHandling interface_handling= ignore_interfaces) {
1216 return make_from_klass_common(klass, true, true, interface_handling);
1217 }
1218 // Same as before, but does not respects UseUniqueSubclasses.
1219 // Use this only for creating array element types.
1220 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces) {
1221 return make_from_klass_common(klass, false, false, interface_handling);
1222 }
1223 // Creates a singleton type given an object.
1224 // If the object cannot be rendered as a constant,
1225 // may return a non-singleton type.
1226 // If require_constant, produce a null if a singleton is not possible.
1227 static const TypeOopPtr* make_from_constant(ciObject* o,
1228 bool require_constant = false);
1229
1230 // Make a generic (unclassed) pointer to an oop.
1231 static const TypeOopPtr* make(PTR ptr, Offset offset, int instance_id,
1232 const TypePtr* speculative = nullptr,
1233 int inline_depth = InlineDepthBottom);
1234
1235 ciObject* const_oop() const { return _const_oop; }
1236 // Exact klass, possibly an interface or an array of interface
1237 ciKlass* exact_klass(bool maybe_null = false) const { assert(klass_is_exact(), ""); ciKlass* k = exact_klass_helper(); assert(k != nullptr || maybe_null, ""); return k; }
1238 ciKlass* unloaded_klass() const { assert(!is_loaded(), "only for unloaded types"); return klass(); }
1239
1240 virtual bool is_loaded() const { return klass()->is_loaded(); }
1241 virtual bool klass_is_exact() const { return _klass_is_exact; }
1242
1243 // Returns true if this pointer points at memory which contains a
1244 // compressed oop references.
1245 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; }
1246 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; }
1247 bool is_ptr_to_boxed_value() const { return _is_ptr_to_boxed_value; }
1248 bool is_known_instance() const { return _instance_id > 0; }
1249 int instance_id() const { return _instance_id; }
1250 bool is_known_instance_field() const { return is_known_instance() && _offset.get() >= 0; }
1251
1252 virtual bool can_be_inline_type() const { return (_klass == nullptr || _klass->can_be_inline_klass(_klass_is_exact)); }
1253 virtual bool can_be_inline_array() const { ShouldNotReachHere(); return false; }
1254
1255 virtual intptr_t get_con() const;
1256
1257 virtual const TypeOopPtr* cast_to_ptr_type(PTR ptr) const;
1258
1259 virtual const TypeOopPtr* cast_to_exactness(bool klass_is_exact) const;
1260
1261 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const;
1262
1263 // corresponding pointer to klass, for a given instance
1264 virtual const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1265
1266 virtual const TypeOopPtr* with_offset(intptr_t offset) const;
1267 virtual const TypePtr* add_offset(intptr_t offset) const;
1268
1269 // Speculative type helper methods.
1270 virtual const TypeOopPtr* remove_speculative() const;
1271 virtual const Type* cleanup_speculative() const;
1272 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const;
1273 virtual const TypePtr* with_inline_depth(int depth) const;
1274
1275 virtual const TypePtr* with_instance_id(int instance_id) const;
1276
1277 virtual const Type *xdual() const; // Compute dual right now.
1278 // the core of the computation of the meet for TypeOopPtr and for its subclasses
1279 virtual const Type *xmeet_helper(const Type *t) const;
1280
1281 // Convenience common pre-built type.
1282 static const TypeOopPtr *BOTTOM;
1283 #ifndef PRODUCT
1284 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1285 #endif
1286 private:
1287 virtual bool is_meet_subtype_of(const TypePtr* other) const {
1288 return is_meet_subtype_of_helper(other->is_oopptr(), klass_is_exact(), other->is_oopptr()->klass_is_exact());
1289 }
1290
1291 virtual bool is_meet_subtype_of_helper(const TypeOopPtr* other, bool this_xk, bool other_xk) const {
1292 ShouldNotReachHere(); return false;
1293 }
1294
1295 virtual const TypeInterfaces* interfaces() const {
1296 return _interfaces;
1297 };
1298
1299 const TypeOopPtr* is_reference_type(const Type* other) const {
1300 return other->isa_oopptr();
1301 }
1302
1303 const TypeAryPtr* is_array_type(const TypeOopPtr* other) const {
1304 return other->isa_aryptr();
1305 }
1306
1307 const TypeInstPtr* is_instance_type(const TypeOopPtr* other) const {
1308 return other->isa_instptr();
1309 }
1310 };
1311
1312 //------------------------------TypeInstPtr------------------------------------
1313 // Class of Java object pointers, pointing either to non-array Java instances
1314 // or to a Klass* (including array klasses).
1315 class TypeInstPtr : public TypeOopPtr {
1316 TypeInstPtr(PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, bool xk, ciObject* o, Offset offset,
1317 bool flat_in_array, int instance_id, const TypePtr* speculative,
1318 int inline_depth);
1319 virtual bool eq( const Type *t ) const;
1320 virtual uint hash() const; // Type specific hashing
1321 bool _flat_in_array; // Type is flat in arrays
1322 ciKlass* exact_klass_helper() const;
1323
1324 public:
1325
1326 // Instance klass, ignoring any interface
1327 ciInstanceKlass* instance_klass() const {
1328 assert(!(klass()->is_loaded() && klass()->is_interface()), "");
1329 return klass()->as_instance_klass();
1330 }
1331
1332 bool is_same_java_type_as_helper(const TypeOopPtr* other) const;
1333 bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1334 bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1335
1336 // Make a pointer to a constant oop.
1337 static const TypeInstPtr *make(ciObject* o) {
1338 ciKlass* k = o->klass();
1339 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1340 return make(TypePtr::Constant, k, interfaces, true, o, Offset(0));
1341 }
1342 // Make a pointer to a constant oop with offset.
1343 static const TypeInstPtr *make(ciObject* o, Offset offset) {
1344 ciKlass* k = o->klass();
1345 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1346 return make(TypePtr::Constant, k, interfaces, true, o, offset);
1347 }
1348
1349 // Make a pointer to some value of type klass.
1350 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces) {
1351 const TypeInterfaces* interfaces = TypePtr::interfaces(klass, true, true, false, interface_handling);
1352 return make(ptr, klass, interfaces, false, nullptr, Offset(0));
1353 }
1354
1355 // Make a pointer to some non-polymorphic value of exactly type klass.
1356 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) {
1357 const TypeInterfaces* interfaces = TypePtr::interfaces(klass, true, false, false, ignore_interfaces);
1358 return make(ptr, klass, interfaces, true, nullptr, Offset(0));
1359 }
1360
1361 // Make a pointer to some value of type klass with offset.
1362 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, Offset offset) {
1363 const TypeInterfaces* interfaces = TypePtr::interfaces(klass, true, false, false, ignore_interfaces);
1364 return make(ptr, klass, interfaces, false, nullptr, offset);
1365 }
1366
1367 // Make a pointer to an oop.
1368 static const TypeInstPtr* make(PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, bool xk, ciObject* o, Offset offset,
1369 bool flat_in_array = false,
1370 int instance_id = InstanceBot,
1371 const TypePtr* speculative = nullptr,
1372 int inline_depth = InlineDepthBottom);
1373
1374 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, Offset offset, int instance_id = InstanceBot) {
1375 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1376 return make(ptr, k, interfaces, xk, o, offset, false, instance_id);
1377 }
1378
1379 /** Create constant type for a constant boxed value */
1380 const Type* get_const_boxed_value() const;
1381
1382 // If this is a java.lang.Class constant, return the type for it or null.
1383 // Pass to Type::get_const_type to turn it to a type, which will usually
1384 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc.
1385 ciType* java_mirror_type(bool* is_null_free_array = nullptr) const;
1386
1387 virtual const TypeInstPtr* cast_to_ptr_type(PTR ptr) const;
1388
1389 virtual const TypeInstPtr* cast_to_exactness(bool klass_is_exact) const;
1390
1391 virtual const TypeInstPtr* cast_to_instance_id(int instance_id) const;
1392
1393 virtual const TypePtr* add_offset(intptr_t offset) const;
1394 virtual const TypeInstPtr* with_offset(intptr_t offset) const;
1395
1396 // Speculative type helper methods.
1397 virtual const TypeInstPtr* remove_speculative() const;
1398 const TypeInstPtr* with_speculative(const TypePtr* speculative) const;
1399 virtual const TypePtr* with_inline_depth(int depth) const;
1400 virtual const TypePtr* with_instance_id(int instance_id) const;
1401
1402 virtual const TypeInstPtr* cast_to_flat_in_array() const;
1403 virtual bool flat_in_array() const { return _flat_in_array; }
1404 virtual bool not_flat_in_array() const { return !can_be_inline_type() || (_klass->is_inlinetype() && !flat_in_array()); }
1405
1406 // the core of the computation of the meet of 2 types
1407 virtual const Type *xmeet_helper(const Type *t) const;
1408 virtual const TypeInstPtr *xmeet_unloaded(const TypeInstPtr *tinst, const TypeInterfaces* interfaces) const;
1409 virtual const Type *xdual() const; // Compute dual right now.
1410
1411 const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1412
1413 virtual bool can_be_inline_array() const;
1414
1415 // Convenience common pre-built types.
1416 static const TypeInstPtr *NOTNULL;
1417 static const TypeInstPtr *BOTTOM;
1418 static const TypeInstPtr *MIRROR;
1419 static const TypeInstPtr *MARK;
1420 static const TypeInstPtr *KLASS;
1421 #ifndef PRODUCT
1422 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1423 #endif
1424
1425 private:
1426 virtual bool is_meet_subtype_of_helper(const TypeOopPtr* other, bool this_xk, bool other_xk) const;
1427
1428 virtual bool is_meet_same_type_as(const TypePtr* other) const {
1429 return _klass->equals(other->is_instptr()->_klass) && _interfaces->eq(other->is_instptr()->_interfaces);
1430 }
1431
1432 };
1433
1434 //------------------------------TypeAryPtr-------------------------------------
1435 // Class of Java array pointers
1436 class TypeAryPtr : public TypeOopPtr {
1437 friend class Type;
1438 friend class TypePtr;
1439 friend class TypeInstPtr;
1440
1441 TypeAryPtr(PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk,
1442 Offset offset, Offset field_offset, int instance_id, bool is_autobox_cache,
1443 const TypePtr* speculative, int inline_depth)
1444 : TypeOopPtr(AryPtr, ptr, k, _array_interfaces, xk, o, offset, field_offset, instance_id, speculative, inline_depth),
1445 _ary(ary),
1446 _is_autobox_cache(is_autobox_cache),
1447 _field_offset(field_offset)
1448 {
1449 int dummy;
1450 bool top_or_bottom = (base_element_type(dummy) == Type::TOP || base_element_type(dummy) == Type::BOTTOM);
1451
1452 if (UseCompressedOops && (elem()->make_oopptr() != nullptr && !top_or_bottom) &&
1453 _offset.get() != 0 && _offset.get() != arrayOopDesc::length_offset_in_bytes() &&
1454 _offset.get() != arrayOopDesc::klass_offset_in_bytes()) {
1455 _is_ptr_to_narrowoop = true;
1456 }
1457
1458 }
1459 virtual bool eq( const Type *t ) const;
1460 virtual uint hash() const; // Type specific hashing
1461 const TypeAry *_ary; // Array we point into
1462 const bool _is_autobox_cache;
1463 // For flat inline type arrays, each field of the inline type in
1464 // the array has its own memory slice so we need to keep track of
1465 // which field is accessed
1466 const Offset _field_offset;
1467 Offset meet_field_offset(const Type::Offset offset) const;
1468 Offset dual_field_offset() const;
1469
1470 ciKlass* compute_klass() const;
1471
1472 // A pointer to delay allocation to Type::Initialize_shared()
1473
1474 static const TypeInterfaces* _array_interfaces;
1475 ciKlass* exact_klass_helper() const;
1476 // Only guaranteed non null for array of basic types
1477 ciKlass* klass() const;
1478
1479 public:
1480
1481 bool is_same_java_type_as_helper(const TypeOopPtr* other) const;
1482 bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1483 bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1484
1485 // returns base element type, an instance klass (and not interface) for object arrays
1486 const Type* base_element_type(int& dims) const;
1487
1488 // Accessors
1489 bool is_loaded() const { return (_ary->_elem->make_oopptr() ? _ary->_elem->make_oopptr()->is_loaded() : true); }
1490
1491 const TypeAry* ary() const { return _ary; }
1492 const Type* elem() const { return _ary->_elem; }
1493 const TypeInt* size() const { return _ary->_size; }
1494 bool is_stable() const { return _ary->_stable; }
1495
1496 // Inline type array properties
1497 bool is_flat() const { return _ary->_flat; }
1498 bool is_not_flat() const { return _ary->_not_flat; }
1499 bool is_null_free() const { return is_flat() || (_ary->_elem->make_ptr() != nullptr && _ary->_elem->make_ptr()->is_inlinetypeptr() && (_ary->_elem->make_ptr()->ptr() == NotNull || _ary->_elem->make_ptr()->ptr() == AnyNull)); }
1500 bool is_not_null_free() const { return _ary->_not_null_free; }
1501
1502 bool is_autobox_cache() const { return _is_autobox_cache; }
1503
1504 static const TypeAryPtr* make(PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, Offset offset,
1505 Offset field_offset = Offset::bottom,
1506 int instance_id = InstanceBot,
1507 const TypePtr* speculative = nullptr,
1508 int inline_depth = InlineDepthBottom);
1509 // Constant pointer to array
1510 static const TypeAryPtr* make(PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, Offset offset,
1511 Offset field_offset = Offset::bottom,
1512 int instance_id = InstanceBot,
1513 const TypePtr* speculative = nullptr,
1514 int inline_depth = InlineDepthBottom,
1515 bool is_autobox_cache = false);
1516
1517 // Return a 'ptr' version of this type
1518 virtual const TypeAryPtr* cast_to_ptr_type(PTR ptr) const;
1519
1520 virtual const TypeAryPtr* cast_to_exactness(bool klass_is_exact) const;
1521
1522 virtual const TypeAryPtr* cast_to_instance_id(int instance_id) const;
1523
1524 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const;
1525 virtual const TypeInt* narrow_size_type(const TypeInt* size) const;
1526
1527 virtual bool empty(void) const; // TRUE if type is vacuous
1528 virtual const TypePtr *add_offset( intptr_t offset ) const;
1529 virtual const TypeAryPtr *with_offset( intptr_t offset ) const;
1530 const TypeAryPtr* with_ary(const TypeAry* ary) const;
1531
1532 // Speculative type helper methods.
1533 virtual const TypeAryPtr* remove_speculative() const;
1534 virtual const Type* cleanup_speculative() const;
1535 virtual const TypePtr* with_inline_depth(int depth) const;
1536 virtual const TypePtr* with_instance_id(int instance_id) const;
1537
1538 // the core of the computation of the meet of 2 types
1539 virtual const Type *xmeet_helper(const Type *t) const;
1540 virtual const Type *xdual() const; // Compute dual right now.
1541
1542 // Inline type array properties
1543 const TypeAryPtr* cast_to_not_flat(bool not_flat = true) const;
1544 const TypeAryPtr* cast_to_not_null_free(bool not_null_free = true) const;
1545 const TypeAryPtr* update_properties(const TypeAryPtr* new_type) const;
1546 jint flat_layout_helper() const;
1547 int flat_elem_size() const;
1548 int flat_log_elem_size() const;
1549
1550 const TypeAryPtr* cast_to_stable(bool stable, int stable_dimension = 1) const;
1551 int stable_dimension() const;
1552
1553 const TypeAryPtr* cast_to_autobox_cache() const;
1554
1555 static jint max_array_length(BasicType etype);
1556
1557 int flat_offset() const;
1558 const Offset field_offset() const { return _field_offset; }
1559 const TypeAryPtr* with_field_offset(int offset) const;
1560 const TypePtr* add_field_offset_and_offset(intptr_t offset) const;
1561
1562 virtual bool can_be_inline_type() const { return false; }
1563 virtual const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1564
1565 virtual bool can_be_inline_array() const;
1566
1567 // Convenience common pre-built types.
1568 static const TypeAryPtr *RANGE;
1569 static const TypeAryPtr *OOPS;
1570 static const TypeAryPtr *NARROWOOPS;
1571 static const TypeAryPtr *BYTES;
1572 static const TypeAryPtr *SHORTS;
1573 static const TypeAryPtr *CHARS;
1574 static const TypeAryPtr *INTS;
1575 static const TypeAryPtr *LONGS;
1576 static const TypeAryPtr *FLOATS;
1577 static const TypeAryPtr *DOUBLES;
1578 static const TypeAryPtr *INLINES;
1579 // selects one of the above:
1580 static const TypeAryPtr *get_array_body_type(BasicType elem) {
1581 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != nullptr, "bad elem type");
1582 return _array_body_type[elem];
1583 }
1584 static const TypeAryPtr *_array_body_type[T_CONFLICT+1];
1585 // sharpen the type of an int which is used as an array size
1586 #ifndef PRODUCT
1587 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1588 #endif
1589 private:
1590 virtual bool is_meet_subtype_of_helper(const TypeOopPtr* other, bool this_xk, bool other_xk) const;
1591 };
1592
1593 //------------------------------TypeMetadataPtr-------------------------------------
1594 // Some kind of metadata, either Method*, MethodData* or CPCacheOop
1595 class TypeMetadataPtr : public TypePtr {
1596 protected:
1597 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, Offset offset);
1598 // Do not allow interface-vs.-noninterface joins to collapse to top.
1599 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1600 public:
1601 virtual bool eq( const Type *t ) const;
1602 virtual uint hash() const; // Type specific hashing
1603 virtual bool singleton(void) const; // TRUE if type is a singleton
1604
1605 private:
1606 ciMetadata* _metadata;
1607
1608 public:
1609 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, Offset offset);
1610
1611 static const TypeMetadataPtr* make(ciMethod* m);
1612 static const TypeMetadataPtr* make(ciMethodData* m);
1613
1614 ciMetadata* metadata() const { return _metadata; }
1615
1616 virtual const TypeMetadataPtr* cast_to_ptr_type(PTR ptr) const;
1617
1618 virtual const TypePtr *add_offset( intptr_t offset ) const;
1619
1620 virtual const Type *xmeet( const Type *t ) const;
1621 virtual const Type *xdual() const; // Compute dual right now.
1622
1623 virtual intptr_t get_con() const;
1624
1625 // Convenience common pre-built types.
1626 static const TypeMetadataPtr *BOTTOM;
1627
1628 #ifndef PRODUCT
1629 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1630 #endif
1631 };
1632
1633 //------------------------------TypeKlassPtr-----------------------------------
1634 // Class of Java Klass pointers
1635 class TypeKlassPtr : public TypePtr {
1636 friend class TypeInstKlassPtr;
1637 friend class TypeAryKlassPtr;
1638 friend class TypePtr;
1639 protected:
1640 TypeKlassPtr(TYPES t, PTR ptr, ciKlass* klass, const TypeInterfaces* interfaces, Offset offset);
1641
1642 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1643
1644 public:
1645 virtual bool eq( const Type *t ) const;
1646 virtual uint hash() const;
1647 virtual bool singleton(void) const; // TRUE if type is a singleton
1648
1649 protected:
1650
1651 ciKlass* _klass;
1652 const TypeInterfaces* _interfaces;
1653 const TypeInterfaces* meet_interfaces(const TypeKlassPtr* other) const;
1654 virtual bool must_be_exact() const { ShouldNotReachHere(); return false; }
1655 virtual ciKlass* exact_klass_helper() const;
1656 virtual ciKlass* klass() const { return _klass; }
1657
1658 public:
1659
1660 bool is_java_subtype_of(const TypeKlassPtr* other) const {
1661 return is_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1662 }
1663 bool is_same_java_type_as(const TypePtr* other) const {
1664 return is_same_java_type_as_helper(other->is_klassptr());
1665 }
1666
1667 bool maybe_java_subtype_of(const TypeKlassPtr* other) const {
1668 return maybe_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1669 }
1670 virtual bool is_same_java_type_as_helper(const TypeKlassPtr* other) const { ShouldNotReachHere(); return false; }
1671 virtual bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1672 virtual bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1673
1674 // Exact klass, possibly an interface or an array of interface
1675 ciKlass* exact_klass(bool maybe_null = false) const { assert(klass_is_exact(), ""); ciKlass* k = exact_klass_helper(); assert(k != nullptr || maybe_null, ""); return k; }
1676 virtual bool klass_is_exact() const { return _ptr == Constant; }
1677
1678 static const TypeKlassPtr* make(ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces);
1679 static const TypeKlassPtr *make(PTR ptr, ciKlass* klass, Offset offset, InterfaceHandling interface_handling = ignore_interfaces);
1680
1681 virtual bool is_loaded() const { return _klass->is_loaded(); }
1682
1683 virtual const TypeKlassPtr* cast_to_ptr_type(PTR ptr) const { ShouldNotReachHere(); return nullptr; }
1684
1685 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const { ShouldNotReachHere(); return nullptr; }
1686
1687 // corresponding pointer to instance, for a given class
1688 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const { ShouldNotReachHere(); return nullptr; }
1689
1690 virtual const TypePtr *add_offset( intptr_t offset ) const { ShouldNotReachHere(); return nullptr; }
1691 virtual const Type *xmeet( const Type *t ) const { ShouldNotReachHere(); return nullptr; }
1692 virtual const Type *xdual() const { ShouldNotReachHere(); return nullptr; }
1693
1694 virtual intptr_t get_con() const;
1695
1696 virtual const TypeKlassPtr* with_offset(intptr_t offset) const { ShouldNotReachHere(); return nullptr; }
1697
1698 virtual bool can_be_inline_array() const { ShouldNotReachHere(); return false; }
1699 virtual const TypeKlassPtr* try_improve() const { return this; }
1700
1701 #ifndef PRODUCT
1702 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1703 #endif
1704 private:
1705 virtual bool is_meet_subtype_of(const TypePtr* other) const {
1706 return is_meet_subtype_of_helper(other->is_klassptr(), klass_is_exact(), other->is_klassptr()->klass_is_exact());
1707 }
1708
1709 virtual bool is_meet_subtype_of_helper(const TypeKlassPtr* other, bool this_xk, bool other_xk) const {
1710 ShouldNotReachHere(); return false;
1711 }
1712
1713 virtual const TypeInterfaces* interfaces() const {
1714 return _interfaces;
1715 };
1716
1717 const TypeKlassPtr* is_reference_type(const Type* other) const {
1718 return other->isa_klassptr();
1719 }
1720
1721 const TypeAryKlassPtr* is_array_type(const TypeKlassPtr* other) const {
1722 return other->isa_aryklassptr();
1723 }
1724
1725 const TypeInstKlassPtr* is_instance_type(const TypeKlassPtr* other) const {
1726 return other->isa_instklassptr();
1727 }
1728 };
1729
1730 // Instance klass pointer, mirrors TypeInstPtr
1731 class TypeInstKlassPtr : public TypeKlassPtr {
1732
1733 TypeInstKlassPtr(PTR ptr, ciKlass* klass, const TypeInterfaces* interfaces, Offset offset, bool flat_in_array)
1734 : TypeKlassPtr(InstKlassPtr, ptr, klass, interfaces, offset), _flat_in_array(flat_in_array) {
1735 assert(klass->is_instance_klass() && (!klass->is_loaded() || !klass->is_interface()), "");
1736 }
1737
1738 virtual bool must_be_exact() const;
1739
1740 const bool _flat_in_array; // Type is flat in arrays
1741
1742 public:
1743 // Instance klass ignoring any interface
1744 ciInstanceKlass* instance_klass() const {
1745 assert(!klass()->is_interface(), "");
1746 return klass()->as_instance_klass();
1747 }
1748
1749 bool is_same_java_type_as_helper(const TypeKlassPtr* other) const;
1750 bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1751 bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1752
1753 virtual bool can_be_inline_type() const { return (_klass == nullptr || _klass->can_be_inline_klass(klass_is_exact())); }
1754
1755 static const TypeInstKlassPtr *make(ciKlass* k, InterfaceHandling interface_handling) {
1756 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, true, false, interface_handling);
1757 return make(TypePtr::Constant, k, interfaces, Offset(0));
1758 }
1759 static const TypeInstKlassPtr* make(PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, Offset offset, bool flat_in_array = false);
1760
1761 static const TypeInstKlassPtr* make(PTR ptr, ciKlass* k, Offset offset) {
1762 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1763 return make(ptr, k, interfaces, offset);
1764 }
1765
1766 virtual const TypeInstKlassPtr* cast_to_ptr_type(PTR ptr) const;
1767
1768 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const;
1769
1770 // corresponding pointer to instance, for a given class
1771 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const;
1772 virtual uint hash() const;
1773 virtual bool eq(const Type *t) const;
1774
1775 virtual const TypePtr *add_offset( intptr_t offset ) const;
1776 virtual const Type *xmeet( const Type *t ) const;
1777 virtual const Type *xdual() const;
1778 virtual const TypeInstKlassPtr* with_offset(intptr_t offset) const;
1779
1780 virtual const TypeKlassPtr* try_improve() const;
1781
1782 virtual bool flat_in_array() const { return _flat_in_array; }
1783 virtual bool not_flat_in_array() const { return !_klass->can_be_inline_klass() || (_klass->is_inlinetype() && !flat_in_array()); }
1784
1785 virtual bool can_be_inline_array() const;
1786
1787 // Convenience common pre-built types.
1788 static const TypeInstKlassPtr* OBJECT; // Not-null object klass or below
1789 static const TypeInstKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same
1790 private:
1791 virtual bool is_meet_subtype_of_helper(const TypeKlassPtr* other, bool this_xk, bool other_xk) const;
1792 };
1793
1794 // Array klass pointer, mirrors TypeAryPtr
1795 class TypeAryKlassPtr : public TypeKlassPtr {
1796 friend class TypeInstKlassPtr;
1797 friend class Type;
1798 friend class TypePtr;
1799
1800 const Type *_elem;
1801 const bool _not_flat; // Array is never flat
1802 const bool _not_null_free; // Array is never null-free
1803 const bool _null_free;
1804
1805 static const TypeInterfaces* _array_interfaces;
1806 TypeAryKlassPtr(PTR ptr, const Type *elem, ciKlass* klass, Offset offset, bool not_flat, int not_null_free, bool null_free)
1807 : TypeKlassPtr(AryKlassPtr, ptr, klass, _array_interfaces, offset), _elem(elem), _not_flat(not_flat), _not_null_free(not_null_free), _null_free(null_free) {
1808 assert(klass == nullptr || klass->is_type_array_klass() || klass->is_flat_array_klass() || !klass->as_obj_array_klass()->base_element_klass()->is_interface(), "");
1809 }
1810
1811 virtual ciKlass* exact_klass_helper() const;
1812 // Only guaranteed non null for array of basic types
1813 virtual ciKlass* klass() const;
1814
1815 virtual bool must_be_exact() const;
1816
1817 bool dual_null_free() const {
1818 return _null_free;
1819 }
1820
1821 bool meet_null_free(bool other) const {
1822 return _null_free && other;
1823 }
1824
1825 public:
1826
1827 // returns base element type, an instance klass (and not interface) for object arrays
1828 const Type* base_element_type(int& dims) const;
1829
1830 static const TypeAryKlassPtr* make(PTR ptr, ciKlass* k, Offset offset, InterfaceHandling interface_handling, bool not_flat, bool not_null_free, bool null_free);
1831
1832 bool is_same_java_type_as_helper(const TypeKlassPtr* other) const;
1833 bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1834 bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1835
1836 bool is_loaded() const { return (_elem->isa_klassptr() ? _elem->is_klassptr()->is_loaded() : true); }
1837
1838 static const TypeAryKlassPtr* make(PTR ptr, const Type* elem, ciKlass* k, Offset offset, bool not_flat, bool not_null_free, bool null_free);
1839 static const TypeAryKlassPtr* make(PTR ptr, ciKlass* k, Offset offset, InterfaceHandling interface_handling);
1840 static const TypeAryKlassPtr* make(ciKlass* klass, InterfaceHandling interface_handling);
1841
1842 const Type *elem() const { return _elem; }
1843
1844 virtual bool eq(const Type *t) const;
1845 virtual uint hash() const; // Type specific hashing
1846
1847 virtual const TypeAryKlassPtr* cast_to_ptr_type(PTR ptr) const;
1848
1849 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const;
1850
1851 const TypeAryKlassPtr* cast_to_null_free() const;
1852
1853 // corresponding pointer to instance, for a given class
1854 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const;
1855
1856 virtual const TypePtr *add_offset( intptr_t offset ) const;
1857 virtual const Type *xmeet( const Type *t ) const;
1858 virtual const Type *xdual() const; // Compute dual right now.
1859
1860 virtual const TypeAryKlassPtr* with_offset(intptr_t offset) const;
1861
1862 virtual bool empty(void) const {
1863 return TypeKlassPtr::empty() || _elem->empty();
1864 }
1865
1866 bool is_flat() const { return klass() != nullptr && klass()->is_flat_array_klass(); }
1867 bool is_not_flat() const { return _not_flat; }
1868 bool is_null_free() const { return _null_free; }
1869 bool is_not_null_free() const { return _not_null_free; }
1870 virtual bool can_be_inline_array() const;
1871
1872 #ifndef PRODUCT
1873 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1874 #endif
1875 private:
1876 virtual bool is_meet_subtype_of_helper(const TypeKlassPtr* other, bool this_xk, bool other_xk) const;
1877 };
1878
1879 class TypeNarrowPtr : public Type {
1880 protected:
1881 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR
1882
1883 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): Type(t),
1884 _ptrtype(ptrtype) {
1885 assert(ptrtype->offset() == 0 ||
1886 ptrtype->offset() == OffsetBot ||
1887 ptrtype->offset() == OffsetTop, "no real offsets");
1888 }
1889
1890 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0;
1891 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0;
1892 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0;
1893 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0;
1894 // Do not allow interface-vs.-noninterface joins to collapse to top.
1895 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1896 public:
1897 virtual bool eq( const Type *t ) const;
1898 virtual uint hash() const; // Type specific hashing
1899 virtual bool singleton(void) const; // TRUE if type is a singleton
1900
1901 virtual const Type *xmeet( const Type *t ) const;
1902 virtual const Type *xdual() const; // Compute dual right now.
1903
1904 virtual intptr_t get_con() const;
1905
1906 virtual bool empty(void) const; // TRUE if type is vacuous
1907
1908 // returns the equivalent ptr type for this compressed pointer
1909 const TypePtr *get_ptrtype() const {
1910 return _ptrtype;
1911 }
1912
1913 bool is_known_instance() const {
1914 return _ptrtype->is_known_instance();
1915 }
1916
1917 #ifndef PRODUCT
1918 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1919 #endif
1920 };
1921
1922 //------------------------------TypeNarrowOop----------------------------------
1923 // A compressed reference to some kind of Oop. This type wraps around
1924 // a preexisting TypeOopPtr and forwards most of it's operations to
1925 // the underlying type. It's only real purpose is to track the
1926 // oopness of the compressed oop value when we expose the conversion
1927 // between the normal and the compressed form.
1928 class TypeNarrowOop : public TypeNarrowPtr {
1929 protected:
1930 TypeNarrowOop( const TypePtr* ptrtype): TypeNarrowPtr(NarrowOop, ptrtype) {
1931 }
1932
1933 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const {
1934 return t->isa_narrowoop();
1935 }
1936
1937 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const {
1938 return t->is_narrowoop();
1939 }
1940
1941 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const {
1942 return new TypeNarrowOop(t);
1943 }
1944
1945 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const {
1946 return (const TypeNarrowPtr*)((new TypeNarrowOop(t))->hashcons());
1947 }
1948
1949 public:
1950
1951 static const TypeNarrowOop *make( const TypePtr* type);
1952
1953 static const TypeNarrowOop* make_from_constant(ciObject* con, bool require_constant = false) {
1954 return make(TypeOopPtr::make_from_constant(con, require_constant));
1955 }
1956
1957 static const TypeNarrowOop *BOTTOM;
1958 static const TypeNarrowOop *NULL_PTR;
1959
1960 virtual const TypeNarrowOop* remove_speculative() const;
1961 virtual const Type* cleanup_speculative() const;
1962
1963 #ifndef PRODUCT
1964 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1965 #endif
1966 };
1967
1968 //------------------------------TypeNarrowKlass----------------------------------
1969 // A compressed reference to klass pointer. This type wraps around a
1970 // preexisting TypeKlassPtr and forwards most of it's operations to
1971 // the underlying type.
1972 class TypeNarrowKlass : public TypeNarrowPtr {
1973 protected:
1974 TypeNarrowKlass( const TypePtr* ptrtype): TypeNarrowPtr(NarrowKlass, ptrtype) {
1975 }
1976
1977 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const {
1978 return t->isa_narrowklass();
1979 }
1980
1981 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const {
1982 return t->is_narrowklass();
1983 }
1984
1985 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const {
1986 return new TypeNarrowKlass(t);
1987 }
1988
1989 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const {
1990 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons());
1991 }
1992
1993 public:
1994 static const TypeNarrowKlass *make( const TypePtr* type);
1995
1996 // static const TypeNarrowKlass *BOTTOM;
1997 static const TypeNarrowKlass *NULL_PTR;
1998
1999 #ifndef PRODUCT
2000 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
2001 #endif
2002 };
2003
2004 //------------------------------TypeFunc---------------------------------------
2005 // Class of Array Types
2006 class TypeFunc : public Type {
2007 TypeFunc(const TypeTuple *domain_sig, const TypeTuple *domain_cc, const TypeTuple *range_sig, const TypeTuple *range_cc)
2008 : Type(Function), _domain_sig(domain_sig), _domain_cc(domain_cc), _range_sig(range_sig), _range_cc(range_cc) {}
2009 virtual bool eq( const Type *t ) const;
2010 virtual uint hash() const; // Type specific hashing
2011 virtual bool singleton(void) const; // TRUE if type is a singleton
2012 virtual bool empty(void) const; // TRUE if type is vacuous
2013
2014 // Domains of inputs: inline type arguments are not passed by
2015 // reference, instead each field of the inline type is passed as an
2016 // argument. We maintain 2 views of the argument list here: one
2017 // based on the signature (with an inline type argument as a single
2018 // slot), one based on the actual calling convention (with a value
2019 // type argument as a list of its fields).
2020 const TypeTuple* const _domain_sig;
2021 const TypeTuple* const _domain_cc;
2022 // Range of results. Similar to domains: an inline type result can be
2023 // returned in registers in which case range_cc lists all fields and
2024 // is the actual calling convention.
2025 const TypeTuple* const _range_sig;
2026 const TypeTuple* const _range_cc;
2027
2028 public:
2029 // Constants are shared among ADLC and VM
2030 enum { Control = AdlcVMDeps::Control,
2031 I_O = AdlcVMDeps::I_O,
2032 Memory = AdlcVMDeps::Memory,
2033 FramePtr = AdlcVMDeps::FramePtr,
2034 ReturnAdr = AdlcVMDeps::ReturnAdr,
2035 Parms = AdlcVMDeps::Parms
2036 };
2037
2038
2039 // Accessors:
2040 const TypeTuple* domain_sig() const { return _domain_sig; }
2041 const TypeTuple* domain_cc() const { return _domain_cc; }
2042 const TypeTuple* range_sig() const { return _range_sig; }
2043 const TypeTuple* range_cc() const { return _range_cc; }
2044
2045 static const TypeFunc* make(ciMethod* method, bool is_osr_compilation = false);
2046 static const TypeFunc *make(const TypeTuple* domain_sig, const TypeTuple* domain_cc,
2047 const TypeTuple* range_sig, const TypeTuple* range_cc);
2048 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range);
2049
2050 virtual const Type *xmeet( const Type *t ) const;
2051 virtual const Type *xdual() const; // Compute dual right now.
2052
2053 BasicType return_type() const;
2054
2055 bool returns_inline_type_as_fields() const { return range_sig() != range_cc(); }
2056
2057 #ifndef PRODUCT
2058 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
2059 #endif
2060 // Convenience common pre-built types.
2061 };
2062
2063 //------------------------------accessors--------------------------------------
2064 inline bool Type::is_ptr_to_narrowoop() const {
2065 #ifdef _LP64
2066 return (isa_oopptr() != nullptr && is_oopptr()->is_ptr_to_narrowoop_nv());
2067 #else
2068 return false;
2069 #endif
2070 }
2071
2072 inline bool Type::is_ptr_to_narrowklass() const {
2073 #ifdef _LP64
2074 return (isa_oopptr() != nullptr && is_oopptr()->is_ptr_to_narrowklass_nv());
2075 #else
2076 return false;
2077 #endif
2078 }
2079
2080 inline float Type::getf() const {
2081 assert( _base == FloatCon, "Not a FloatCon" );
2082 return ((TypeF*)this)->_f;
2083 }
2084
2085 inline double Type::getd() const {
2086 assert( _base == DoubleCon, "Not a DoubleCon" );
2087 return ((TypeD*)this)->_d;
2088 }
2089
2090 inline const TypeInteger *Type::is_integer(BasicType bt) const {
2091 assert((bt == T_INT && _base == Int) || (bt == T_LONG && _base == Long), "Not an Int");
2092 return (TypeInteger*)this;
2093 }
2094
2095 inline const TypeInteger *Type::isa_integer(BasicType bt) const {
2096 return (((bt == T_INT && _base == Int) || (bt == T_LONG && _base == Long)) ? (TypeInteger*)this : nullptr);
2097 }
2098
2099 inline const TypeInt *Type::is_int() const {
2100 assert( _base == Int, "Not an Int" );
2101 return (TypeInt*)this;
2102 }
2103
2104 inline const TypeInt *Type::isa_int() const {
2105 return ( _base == Int ? (TypeInt*)this : nullptr);
2106 }
2107
2108 inline const TypeLong *Type::is_long() const {
2109 assert( _base == Long, "Not a Long" );
2110 return (TypeLong*)this;
2111 }
2112
2113 inline const TypeLong *Type::isa_long() const {
2114 return ( _base == Long ? (TypeLong*)this : nullptr);
2115 }
2116
2117 inline const TypeF *Type::isa_float() const {
2118 return ((_base == FloatTop ||
2119 _base == FloatCon ||
2120 _base == FloatBot) ? (TypeF*)this : nullptr);
2121 }
2122
2123 inline const TypeF *Type::is_float_constant() const {
2124 assert( _base == FloatCon, "Not a Float" );
2125 return (TypeF*)this;
2126 }
2127
2128 inline const TypeF *Type::isa_float_constant() const {
2129 return ( _base == FloatCon ? (TypeF*)this : nullptr);
2130 }
2131
2132 inline const TypeD *Type::isa_double() const {
2133 return ((_base == DoubleTop ||
2134 _base == DoubleCon ||
2135 _base == DoubleBot) ? (TypeD*)this : nullptr);
2136 }
2137
2138 inline const TypeD *Type::is_double_constant() const {
2139 assert( _base == DoubleCon, "Not a Double" );
2140 return (TypeD*)this;
2141 }
2142
2143 inline const TypeD *Type::isa_double_constant() const {
2144 return ( _base == DoubleCon ? (TypeD*)this : nullptr);
2145 }
2146
2147 inline const TypeTuple *Type::is_tuple() const {
2148 assert( _base == Tuple, "Not a Tuple" );
2149 return (TypeTuple*)this;
2150 }
2151
2152 inline const TypeAry *Type::is_ary() const {
2153 assert( _base == Array , "Not an Array" );
2154 return (TypeAry*)this;
2155 }
2156
2157 inline const TypeAry *Type::isa_ary() const {
2158 return ((_base == Array) ? (TypeAry*)this : nullptr);
2159 }
2160
2161 inline const TypeVectMask *Type::is_vectmask() const {
2162 assert( _base == VectorMask, "Not a Vector Mask" );
2163 return (TypeVectMask*)this;
2164 }
2165
2166 inline const TypeVectMask *Type::isa_vectmask() const {
2167 return (_base == VectorMask) ? (TypeVectMask*)this : nullptr;
2168 }
2169
2170 inline const TypeVect *Type::is_vect() const {
2171 assert( _base >= VectorMask && _base <= VectorZ, "Not a Vector" );
2172 return (TypeVect*)this;
2173 }
2174
2175 inline const TypeVect *Type::isa_vect() const {
2176 return (_base >= VectorMask && _base <= VectorZ) ? (TypeVect*)this : nullptr;
2177 }
2178
2179 inline const TypePtr *Type::is_ptr() const {
2180 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between.
2181 assert(_base >= AnyPtr && _base <= AryKlassPtr, "Not a pointer");
2182 return (TypePtr*)this;
2183 }
2184
2185 inline const TypePtr *Type::isa_ptr() const {
2186 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between.
2187 return (_base >= AnyPtr && _base <= AryKlassPtr) ? (TypePtr*)this : nullptr;
2188 }
2189
2190 inline const TypeOopPtr *Type::is_oopptr() const {
2191 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2192 assert(_base >= OopPtr && _base <= AryPtr, "Not a Java pointer" ) ;
2193 return (TypeOopPtr*)this;
2194 }
2195
2196 inline const TypeOopPtr *Type::isa_oopptr() const {
2197 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2198 return (_base >= OopPtr && _base <= AryPtr) ? (TypeOopPtr*)this : nullptr;
2199 }
2200
2201 inline const TypeRawPtr *Type::isa_rawptr() const {
2202 return (_base == RawPtr) ? (TypeRawPtr*)this : nullptr;
2203 }
2204
2205 inline const TypeRawPtr *Type::is_rawptr() const {
2206 assert( _base == RawPtr, "Not a raw pointer" );
2207 return (TypeRawPtr*)this;
2208 }
2209
2210 inline const TypeInstPtr *Type::isa_instptr() const {
2211 return (_base == InstPtr) ? (TypeInstPtr*)this : nullptr;
2212 }
2213
2214 inline const TypeInstPtr *Type::is_instptr() const {
2215 assert( _base == InstPtr, "Not an object pointer" );
2216 return (TypeInstPtr*)this;
2217 }
2218
2219 inline const TypeAryPtr *Type::isa_aryptr() const {
2220 return (_base == AryPtr) ? (TypeAryPtr*)this : nullptr;
2221 }
2222
2223 inline const TypeAryPtr *Type::is_aryptr() const {
2224 assert( _base == AryPtr, "Not an array pointer" );
2225 return (TypeAryPtr*)this;
2226 }
2227
2228 inline const TypeNarrowOop *Type::is_narrowoop() const {
2229 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2230 assert(_base == NarrowOop, "Not a narrow oop" ) ;
2231 return (TypeNarrowOop*)this;
2232 }
2233
2234 inline const TypeNarrowOop *Type::isa_narrowoop() const {
2235 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2236 return (_base == NarrowOop) ? (TypeNarrowOop*)this : nullptr;
2237 }
2238
2239 inline const TypeNarrowKlass *Type::is_narrowklass() const {
2240 assert(_base == NarrowKlass, "Not a narrow oop" ) ;
2241 return (TypeNarrowKlass*)this;
2242 }
2243
2244 inline const TypeNarrowKlass *Type::isa_narrowklass() const {
2245 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : nullptr;
2246 }
2247
2248 inline const TypeMetadataPtr *Type::is_metadataptr() const {
2249 // MetadataPtr is the first and CPCachePtr the last
2250 assert(_base == MetadataPtr, "Not a metadata pointer" ) ;
2251 return (TypeMetadataPtr*)this;
2252 }
2253
2254 inline const TypeMetadataPtr *Type::isa_metadataptr() const {
2255 return (_base == MetadataPtr) ? (TypeMetadataPtr*)this : nullptr;
2256 }
2257
2258 inline const TypeKlassPtr *Type::isa_klassptr() const {
2259 return (_base >= KlassPtr && _base <= AryKlassPtr ) ? (TypeKlassPtr*)this : nullptr;
2260 }
2261
2262 inline const TypeKlassPtr *Type::is_klassptr() const {
2263 assert(_base >= KlassPtr && _base <= AryKlassPtr, "Not a klass pointer");
2264 return (TypeKlassPtr*)this;
2265 }
2266
2267 inline const TypeInstKlassPtr *Type::isa_instklassptr() const {
2268 return (_base == InstKlassPtr) ? (TypeInstKlassPtr*)this : nullptr;
2269 }
2270
2271 inline const TypeInstKlassPtr *Type::is_instklassptr() const {
2272 assert(_base == InstKlassPtr, "Not a klass pointer");
2273 return (TypeInstKlassPtr*)this;
2274 }
2275
2276 inline const TypeAryKlassPtr *Type::isa_aryklassptr() const {
2277 return (_base == AryKlassPtr) ? (TypeAryKlassPtr*)this : nullptr;
2278 }
2279
2280 inline const TypeAryKlassPtr *Type::is_aryklassptr() const {
2281 assert(_base == AryKlassPtr, "Not a klass pointer");
2282 return (TypeAryKlassPtr*)this;
2283 }
2284
2285 inline const TypePtr* Type::make_ptr() const {
2286 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() :
2287 ((_base == NarrowKlass) ? is_narrowklass()->get_ptrtype() :
2288 isa_ptr());
2289 }
2290
2291 inline const TypeOopPtr* Type::make_oopptr() const {
2292 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->isa_oopptr() : isa_oopptr();
2293 }
2294
2295 inline const TypeNarrowOop* Type::make_narrowoop() const {
2296 return (_base == NarrowOop) ? is_narrowoop() :
2297 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : nullptr);
2298 }
2299
2300 inline const TypeNarrowKlass* Type::make_narrowklass() const {
2301 return (_base == NarrowKlass) ? is_narrowklass() :
2302 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : nullptr);
2303 }
2304
2305 inline bool Type::is_floatingpoint() const {
2306 if( (_base == FloatCon) || (_base == FloatBot) ||
2307 (_base == DoubleCon) || (_base == DoubleBot) )
2308 return true;
2309 return false;
2310 }
2311
2312 inline bool Type::is_inlinetypeptr() const {
2313 return isa_instptr() != nullptr && is_instptr()->instance_klass()->is_inlinetype();
2314 }
2315
2316 inline ciInlineKlass* Type::inline_klass() const {
2317 return make_ptr()->is_instptr()->instance_klass()->as_inline_klass();
2318 }
2319
2320
2321 // ===============================================================
2322 // Things that need to be 64-bits in the 64-bit build but
2323 // 32-bits in the 32-bit build. Done this way to get full
2324 // optimization AND strong typing.
2325 #ifdef _LP64
2326
2327 // For type queries and asserts
2328 #define is_intptr_t is_long
2329 #define isa_intptr_t isa_long
2330 #define find_intptr_t_type find_long_type
2331 #define find_intptr_t_con find_long_con
2332 #define TypeX TypeLong
2333 #define Type_X Type::Long
2334 #define TypeX_X TypeLong::LONG
2335 #define TypeX_ZERO TypeLong::ZERO
2336 // For 'ideal_reg' machine registers
2337 #define Op_RegX Op_RegL
2338 // For phase->intcon variants
2339 #define MakeConX longcon
2340 #define ConXNode ConLNode
2341 // For array index arithmetic
2342 #define MulXNode MulLNode
2343 #define AndXNode AndLNode
2344 #define OrXNode OrLNode
2345 #define CmpXNode CmpLNode
2346 #define CmpUXNode CmpULNode
2347 #define SubXNode SubLNode
2348 #define LShiftXNode LShiftLNode
2349 // For object size computation:
2350 #define AddXNode AddLNode
2351 #define RShiftXNode RShiftLNode
2352 // For card marks and hashcodes
2353 #define URShiftXNode URShiftLNode
2354 // For shenandoahSupport
2355 #define LoadXNode LoadLNode
2356 #define StoreXNode StoreLNode
2357 // Opcodes
2358 #define Op_LShiftX Op_LShiftL
2359 #define Op_AndX Op_AndL
2360 #define Op_AddX Op_AddL
2361 #define Op_SubX Op_SubL
2362 #define Op_XorX Op_XorL
2363 #define Op_URShiftX Op_URShiftL
2364 #define Op_LoadX Op_LoadL
2365 #define Op_StoreX Op_StoreL
2366 // conversions
2367 #define ConvI2X(x) ConvI2L(x)
2368 #define ConvL2X(x) (x)
2369 #define ConvX2I(x) ConvL2I(x)
2370 #define ConvX2L(x) (x)
2371 #define ConvX2UL(x) (x)
2372
2373 #else
2374
2375 // For type queries and asserts
2376 #define is_intptr_t is_int
2377 #define isa_intptr_t isa_int
2378 #define find_intptr_t_type find_int_type
2379 #define find_intptr_t_con find_int_con
2380 #define TypeX TypeInt
2381 #define Type_X Type::Int
2382 #define TypeX_X TypeInt::INT
2383 #define TypeX_ZERO TypeInt::ZERO
2384 // For 'ideal_reg' machine registers
2385 #define Op_RegX Op_RegI
2386 // For phase->intcon variants
2387 #define MakeConX intcon
2388 #define ConXNode ConINode
2389 // For array index arithmetic
2390 #define MulXNode MulINode
2391 #define AndXNode AndINode
2392 #define OrXNode OrINode
2393 #define CmpXNode CmpINode
2394 #define CmpUXNode CmpUNode
2395 #define SubXNode SubINode
2396 #define LShiftXNode LShiftINode
2397 // For object size computation:
2398 #define AddXNode AddINode
2399 #define RShiftXNode RShiftINode
2400 // For card marks and hashcodes
2401 #define URShiftXNode URShiftINode
2402 // For shenandoahSupport
2403 #define LoadXNode LoadINode
2404 #define StoreXNode StoreINode
2405 // Opcodes
2406 #define Op_LShiftX Op_LShiftI
2407 #define Op_AndX Op_AndI
2408 #define Op_AddX Op_AddI
2409 #define Op_SubX Op_SubI
2410 #define Op_XorX Op_XorI
2411 #define Op_URShiftX Op_URShiftI
2412 #define Op_LoadX Op_LoadI
2413 #define Op_StoreX Op_StoreI
2414 // conversions
2415 #define ConvI2X(x) (x)
2416 #define ConvL2X(x) ConvL2I(x)
2417 #define ConvX2I(x) (x)
2418 #define ConvX2L(x) ConvI2L(x)
2419 #define ConvX2UL(x) ConvI2UL(x)
2420
2421 #endif
2422
2423 #endif // SHARE_OPTO_TYPE_HPP