1 /*
2 * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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
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23 */
24
25 #ifndef SHARE_OPTO_TYPE_HPP
26 #define SHARE_OPTO_TYPE_HPP
27
28 #include "opto/adlcVMDeps.hpp"
29 #include "runtime/handles.hpp"
30
31 // Portions of code courtesy of Clifford Click
32
33 // Optimization - Graph Style
34
35
36 // This class defines a Type lattice. The lattice is used in the constant
37 // propagation algorithms, and for some type-checking of the iloc code.
38 // Basic types include RSD's (lower bound, upper bound, stride for integers),
39 // float & double precision constants, sets of data-labels and code-labels.
40 // The complete lattice is described below. Subtypes have no relationship to
41 // up or down in the lattice; that is entirely determined by the behavior of
42 // the MEET/JOIN functions.
43
44 class Dict;
45 class Type;
46 class TypeD;
47 class TypeF;
48 class TypeInteger;
49 class TypeInt;
50 class TypeLong;
51 class TypeNarrowPtr;
52 class TypeNarrowOop;
53 class TypeNarrowKlass;
54 class TypeAry;
55 class TypeTuple;
56 class TypeVect;
57 class TypeVectA;
58 class TypeVectS;
59 class TypeVectD;
60 class TypeVectX;
61 class TypeVectY;
62 class TypeVectZ;
63 class TypeVectMask;
64 class TypePtr;
65 class TypeRawPtr;
66 class TypeOopPtr;
67 class TypeInstPtr;
68 class TypeAryPtr;
69 class TypeKlassPtr;
70 class TypeInstKlassPtr;
71 class TypeAryKlassPtr;
72 class TypeMetadataPtr;
73 class VerifyMeet;
74
75 //------------------------------Type-------------------------------------------
76 // Basic Type object, represents a set of primitive Values.
77 // Types are hash-cons'd into a private class dictionary, so only one of each
78 // different kind of Type exists. Types are never modified after creation, so
79 // all their interesting fields are constant.
80 class Type {
81 friend class VMStructs;
82
83 public:
84 enum TYPES {
85 Bad=0, // Type check
86 Control, // Control of code (not in lattice)
87 Top, // Top of the lattice
88 Int, // Integer range (lo-hi)
89 Long, // Long integer range (lo-hi)
90 Half, // Placeholder half of doubleword
91 NarrowOop, // Compressed oop pointer
92 NarrowKlass, // Compressed klass pointer
93
94 Tuple, // Method signature or object layout
95 Array, // Array types
96
97 Interfaces, // Set of implemented interfaces for oop types
98
99 VectorMask, // Vector predicate/mask type
100 VectorA, // (Scalable) Vector types for vector length agnostic
101 VectorS, // 32bit Vector types
102 VectorD, // 64bit Vector types
103 VectorX, // 128bit Vector types
104 VectorY, // 256bit Vector types
105 VectorZ, // 512bit Vector types
106
107 AnyPtr, // Any old raw, klass, inst, or array pointer
108 RawPtr, // Raw (non-oop) pointers
109 OopPtr, // Any and all Java heap entities
110 InstPtr, // Instance pointers (non-array objects)
111 AryPtr, // Array pointers
112 // (Ptr order matters: See is_ptr, isa_ptr, is_oopptr, isa_oopptr.)
113
114 MetadataPtr, // Generic metadata
115 KlassPtr, // Klass pointers
116 InstKlassPtr,
117 AryKlassPtr,
118
119 Function, // Function signature
120 Abio, // Abstract I/O
121 Return_Address, // Subroutine return address
122 Memory, // Abstract store
123 FloatTop, // No float value
124 FloatCon, // Floating point constant
125 FloatBot, // Any float value
126 DoubleTop, // No double value
127 DoubleCon, // Double precision constant
128 DoubleBot, // Any double value
129 Bottom, // Bottom of lattice
130 lastype // Bogus ending type (not in lattice)
131 };
132
133 // Signal values for offsets from a base pointer
134 enum OFFSET_SIGNALS {
135 OffsetTop = -2000000000, // undefined offset
136 OffsetBot = -2000000001 // any possible offset
137 };
138
139 // Min and max WIDEN values.
140 enum WIDEN {
141 WidenMin = 0,
142 WidenMax = 3
143 };
144
145 private:
146 typedef struct {
147 TYPES dual_type;
148 BasicType basic_type;
149 const char* msg;
150 bool isa_oop;
151 uint ideal_reg;
152 relocInfo::relocType reloc;
153 } TypeInfo;
154
155 // Dictionary of types shared among compilations.
156 static Dict* _shared_type_dict;
157 static const TypeInfo _type_info[];
158
159 static int uhash( const Type *const t );
160 // Structural equality check. Assumes that equals() has already compared
161 // the _base types and thus knows it can cast 't' appropriately.
162 virtual bool eq( const Type *t ) const;
163
164 // Top-level hash-table of types
165 static Dict *type_dict() {
166 return Compile::current()->type_dict();
167 }
168
169 // DUAL operation: reflect around lattice centerline. Used instead of
170 // join to ensure my lattice is symmetric up and down. Dual is computed
171 // lazily, on demand, and cached in _dual.
172 const Type *_dual; // Cached dual value
173
174
175 const Type *meet_helper(const Type *t, bool include_speculative) const;
176 void check_symmetrical(const Type* t, const Type* mt, const VerifyMeet& verify) const NOT_DEBUG_RETURN;
177
178 protected:
179 // Each class of type is also identified by its base.
180 const TYPES _base; // Enum of Types type
181
182 Type( TYPES t ) : _dual(nullptr), _base(t) {} // Simple types
183 // ~Type(); // Use fast deallocation
184 const Type *hashcons(); // Hash-cons the type
185 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
186 const Type *join_helper(const Type *t, bool include_speculative) const {
187 assert_type_verify_empty();
188 return dual()->meet_helper(t->dual(), include_speculative)->dual();
189 }
190
191 void assert_type_verify_empty() const NOT_DEBUG_RETURN;
192
193 public:
194
195 // This is used as a marker to identify narrow Klass* loads, which
196 // are really extracted from the mark-word, but we still want to
197 // distinguish it.
198 static int klass_offset() {
199 if (UseCompactObjectHeaders) {
200 return 1;
201 } else {
202 return oopDesc::klass_offset_in_bytes();
203 }
204 }
205
206 inline void* operator new( size_t x ) throw() {
207 Compile* compile = Compile::current();
208 compile->set_type_last_size(x);
209 return compile->type_arena()->AmallocWords(x);
210 }
211 inline void operator delete( void* ptr ) {
212 Compile* compile = Compile::current();
213 compile->type_arena()->Afree(ptr,compile->type_last_size());
214 }
215
216 // Initialize the type system for a particular compilation.
217 static void Initialize(Compile* compile);
218
219 // Initialize the types shared by all compilations.
220 static void Initialize_shared(Compile* compile);
221
222 TYPES base() const {
223 assert(_base > Bad && _base < lastype, "sanity");
224 return _base;
225 }
226
227 // Create a new hash-consd type
228 static const Type *make(enum TYPES);
229 // Test for equivalence of types
230 static bool equals(const Type* t1, const Type* t2);
231 // Test for higher or equal in lattice
232 // Variant that drops the speculative part of the types
233 bool higher_equal(const Type* t) const {
234 return equals(meet(t), t->remove_speculative());
235 }
236 // Variant that keeps the speculative part of the types
237 bool higher_equal_speculative(const Type* t) const {
238 return equals(meet_speculative(t), t);
239 }
240
241 // MEET operation; lower in lattice.
242 // Variant that drops the speculative part of the types
243 const Type *meet(const Type *t) const {
244 return meet_helper(t, false);
245 }
246 // Variant that keeps the speculative part of the types
247 const Type *meet_speculative(const Type *t) const {
248 return meet_helper(t, true)->cleanup_speculative();
249 }
250 // WIDEN: 'widens' for Ints and other range types
251 virtual const Type *widen( const Type *old, const Type* limit ) const { return this; }
252 // NARROW: complement for widen, used by pessimistic phases
253 virtual const Type *narrow( const Type *old ) const { return this; }
254
255 // DUAL operation: reflect around lattice centerline. Used instead of
256 // join to ensure my lattice is symmetric up and down.
257 const Type *dual() const { return _dual; }
258
259 // Compute meet dependent on base type
260 virtual const Type *xmeet( const Type *t ) const;
261 virtual const Type *xdual() const; // Compute dual right now.
262
263 // JOIN operation; higher in lattice. Done by finding the dual of the
264 // meet of the dual of the 2 inputs.
265 // Variant that drops the speculative part of the types
266 const Type *join(const Type *t) const {
267 return join_helper(t, false);
268 }
269 // Variant that keeps the speculative part of the types
270 const Type *join_speculative(const Type *t) const {
271 return join_helper(t, true)->cleanup_speculative();
272 }
273
274 // Modified version of JOIN adapted to the needs Node::Value.
275 // Normalizes all empty values to TOP. Does not kill _widen bits.
276 // Variant that drops the speculative part of the types
277 const Type *filter(const Type *kills) const {
278 return filter_helper(kills, false);
279 }
280 // Variant that keeps the speculative part of the types
281 const Type *filter_speculative(const Type *kills) const {
282 return filter_helper(kills, true)->cleanup_speculative();
283 }
284
285 // Returns true if this pointer points at memory which contains a
286 // compressed oop references.
287 bool is_ptr_to_narrowoop() const;
288 bool is_ptr_to_narrowklass() const;
289
290 // Convenience access
291 float getf() const;
292 double getd() const;
293
294 const TypeInt *is_int() const;
295 const TypeInt *isa_int() const; // Returns null if not an Int
296 const TypeInteger* is_integer(BasicType bt) const;
297 const TypeInteger* isa_integer(BasicType bt) const;
298 const TypeLong *is_long() const;
299 const TypeLong *isa_long() const; // Returns null if not a Long
300 const TypeD *isa_double() const; // Returns null if not a Double{Top,Con,Bot}
301 const TypeD *is_double_constant() const; // Asserts it is a DoubleCon
302 const TypeD *isa_double_constant() const; // Returns null if not a DoubleCon
303 const TypeF *isa_float() const; // Returns null if not a Float{Top,Con,Bot}
304 const TypeF *is_float_constant() const; // Asserts it is a FloatCon
305 const TypeF *isa_float_constant() const; // Returns null if not a FloatCon
306 const TypeTuple *is_tuple() const; // Collection of fields, NOT a pointer
307 const TypeAry *is_ary() const; // Array, NOT array pointer
308 const TypeAry *isa_ary() const; // Returns null of not ary
309 const TypeVect *is_vect() const; // Vector
310 const TypeVect *isa_vect() const; // Returns null if not a Vector
311 const TypeVectMask *is_vectmask() const; // Predicate/Mask Vector
312 const TypeVectMask *isa_vectmask() const; // Returns null if not a Vector Predicate/Mask
313 const TypePtr *is_ptr() const; // Asserts it is a ptr type
314 const TypePtr *isa_ptr() const; // Returns null if not ptr type
315 const TypeRawPtr *isa_rawptr() const; // NOT Java oop
316 const TypeRawPtr *is_rawptr() const; // Asserts is rawptr
317 const TypeNarrowOop *is_narrowoop() const; // Java-style GC'd pointer
318 const TypeNarrowOop *isa_narrowoop() const; // Returns null if not oop ptr type
319 const TypeNarrowKlass *is_narrowklass() const; // compressed klass pointer
320 const TypeNarrowKlass *isa_narrowklass() const;// Returns null if not oop ptr type
321 const TypeOopPtr *isa_oopptr() const; // Returns null if not oop ptr type
322 const TypeOopPtr *is_oopptr() const; // Java-style GC'd pointer
323 const TypeInstPtr *isa_instptr() const; // Returns null if not InstPtr
324 const TypeInstPtr *is_instptr() const; // Instance
325 const TypeAryPtr *isa_aryptr() const; // Returns null if not AryPtr
326 const TypeAryPtr *is_aryptr() const; // Array oop
327
328 template <typename TypeClass>
329 const TypeClass* cast() const;
330
331 const TypeMetadataPtr *isa_metadataptr() const; // Returns null if not oop ptr type
332 const TypeMetadataPtr *is_metadataptr() const; // Java-style GC'd pointer
333 const TypeKlassPtr *isa_klassptr() const; // Returns null if not KlassPtr
334 const TypeKlassPtr *is_klassptr() const; // assert if not KlassPtr
335 const TypeInstKlassPtr *isa_instklassptr() const; // Returns null if not IntKlassPtr
336 const TypeInstKlassPtr *is_instklassptr() const; // assert if not IntKlassPtr
337 const TypeAryKlassPtr *isa_aryklassptr() const; // Returns null if not AryKlassPtr
338 const TypeAryKlassPtr *is_aryklassptr() const; // assert if not AryKlassPtr
339
340 virtual bool is_finite() const; // Has a finite value
341 virtual bool is_nan() const; // Is not a number (NaN)
342
343 // Returns this ptr type or the equivalent ptr type for this compressed pointer.
344 const TypePtr* make_ptr() const;
345
346 // Returns this oopptr type or the equivalent oopptr type for this compressed pointer.
347 // Asserts if the underlying type is not an oopptr or narrowoop.
348 const TypeOopPtr* make_oopptr() const;
349
350 // Returns this compressed pointer or the equivalent compressed version
351 // of this pointer type.
352 const TypeNarrowOop* make_narrowoop() const;
353
354 // Returns this compressed klass pointer or the equivalent
355 // compressed version of this pointer type.
356 const TypeNarrowKlass* make_narrowklass() const;
357
358 // Special test for register pressure heuristic
359 bool is_floatingpoint() const; // True if Float or Double base type
360
361 // Do you have memory, directly or through a tuple?
362 bool has_memory( ) const;
363
364 // TRUE if type is a singleton
365 virtual bool singleton(void) const;
366
367 // TRUE if type is above the lattice centerline, and is therefore vacuous
368 virtual bool empty(void) const;
369
370 // Return a hash for this type. The hash function is public so ConNode
371 // (constants) can hash on their constant, which is represented by a Type.
372 virtual uint hash() const;
373
374 // Map ideal registers (machine types) to ideal types
375 static const Type *mreg2type[];
376
377 // Printing, statistics
378 #ifndef PRODUCT
379 void dump_on(outputStream *st) const;
380 void dump() const {
381 dump_on(tty);
382 }
383 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
384 static void dump_stats();
385 // Groups of types, for debugging and visualization only.
386 enum class Category {
387 Data,
388 Memory,
389 Mixed, // Tuples with types of different categories.
390 Control,
391 Other, // {Type::Top, Type::Abio, Type::Bottom}.
392 Undef // {Type::Bad, Type::lastype}, for completeness.
393 };
394 // Return the category of this type.
395 Category category() const;
396 // Check recursively in tuples.
397 bool has_category(Category cat) const;
398
399 static const char* str(const Type* t);
400 #endif // !PRODUCT
401 void typerr(const Type *t) const; // Mixing types error
402
403 // Create basic type
404 static const Type* get_const_basic_type(BasicType type) {
405 assert((uint)type <= T_CONFLICT && _const_basic_type[type] != nullptr, "bad type");
406 return _const_basic_type[type];
407 }
408
409 // For two instance arrays of same dimension, return the base element types.
410 // Otherwise or if the arrays have different dimensions, return null.
411 static void get_arrays_base_elements(const Type *a1, const Type *a2,
412 const TypeInstPtr **e1, const TypeInstPtr **e2);
413
414 // Mapping to the array element's basic type.
415 BasicType array_element_basic_type() const;
416
417 enum InterfaceHandling {
418 trust_interfaces,
419 ignore_interfaces
420 };
421 // Create standard type for a ciType:
422 static const Type* get_const_type(ciType* type, InterfaceHandling interface_handling = ignore_interfaces);
423
424 // Create standard zero value:
425 static const Type* get_zero_type(BasicType type) {
426 assert((uint)type <= T_CONFLICT && _zero_type[type] != nullptr, "bad type");
427 return _zero_type[type];
428 }
429
430 // Report if this is a zero value (not top).
431 bool is_zero_type() const {
432 BasicType type = basic_type();
433 if (type == T_VOID || type >= T_CONFLICT)
434 return false;
435 else
436 return (this == _zero_type[type]);
437 }
438
439 // Convenience common pre-built types.
440 static const Type *ABIO;
441 static const Type *BOTTOM;
442 static const Type *CONTROL;
443 static const Type *DOUBLE;
444 static const Type *FLOAT;
445 static const Type *HALF;
446 static const Type *MEMORY;
447 static const Type *MULTI;
448 static const Type *RETURN_ADDRESS;
449 static const Type *TOP;
450
451 // Mapping from compiler type to VM BasicType
452 BasicType basic_type() const { return _type_info[_base].basic_type; }
453 uint ideal_reg() const { return _type_info[_base].ideal_reg; }
454 const char* msg() const { return _type_info[_base].msg; }
455 bool isa_oop_ptr() const { return _type_info[_base].isa_oop; }
456 relocInfo::relocType reloc() const { return _type_info[_base].reloc; }
457
458 // Mapping from CI type system to compiler type:
459 static const Type* get_typeflow_type(ciType* type);
460
461 static const Type* make_from_constant(ciConstant constant,
462 bool require_constant = false,
463 int stable_dimension = 0,
464 bool is_narrow = false,
465 bool is_autobox_cache = false);
466
467 static const Type* make_constant_from_field(ciInstance* holder,
468 int off,
469 bool is_unsigned_load,
470 BasicType loadbt);
471
472 static const Type* make_constant_from_field(ciField* field,
473 ciInstance* holder,
474 BasicType loadbt,
475 bool is_unsigned_load);
476
477 static const Type* make_constant_from_array_element(ciArray* array,
478 int off,
479 int stable_dimension,
480 BasicType loadbt,
481 bool is_unsigned_load);
482
483 // Speculative type helper methods. See TypePtr.
484 virtual const TypePtr* speculative() const { return nullptr; }
485 virtual ciKlass* speculative_type() const { return nullptr; }
486 virtual ciKlass* speculative_type_not_null() const { return nullptr; }
487 virtual bool speculative_maybe_null() const { return true; }
488 virtual bool speculative_always_null() const { return true; }
489 virtual const Type* remove_speculative() const { return this; }
490 virtual const Type* cleanup_speculative() const { return this; }
491 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const { return exact_kls != nullptr; }
492 virtual bool would_improve_ptr(ProfilePtrKind ptr_kind) const { return ptr_kind == ProfileAlwaysNull || ptr_kind == ProfileNeverNull; }
493 const Type* maybe_remove_speculative(bool include_speculative) const;
494
495 virtual bool maybe_null() const { return true; }
496 virtual bool is_known_instance() const { return false; }
497
498 private:
499 // support arrays
500 static const Type* _zero_type[T_CONFLICT+1];
501 static const Type* _const_basic_type[T_CONFLICT+1];
502 };
503
504 //------------------------------TypeF------------------------------------------
505 // Class of Float-Constant Types.
506 class TypeF : public Type {
507 TypeF( float f ) : Type(FloatCon), _f(f) {};
508 public:
509 virtual bool eq( const Type *t ) const;
510 virtual uint hash() const; // Type specific hashing
511 virtual bool singleton(void) const; // TRUE if type is a singleton
512 virtual bool empty(void) const; // TRUE if type is vacuous
513 public:
514 const float _f; // Float constant
515
516 static const TypeF *make(float f);
517
518 virtual bool is_finite() const; // Has a finite value
519 virtual bool is_nan() const; // Is not a number (NaN)
520
521 virtual const Type *xmeet( const Type *t ) const;
522 virtual const Type *xdual() const; // Compute dual right now.
523 // Convenience common pre-built types.
524 static const TypeF *MAX;
525 static const TypeF *MIN;
526 static const TypeF *ZERO; // positive zero only
527 static const TypeF *ONE;
528 static const TypeF *POS_INF;
529 static const TypeF *NEG_INF;
530 #ifndef PRODUCT
531 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
532 #endif
533 };
534
535 //------------------------------TypeD------------------------------------------
536 // Class of Double-Constant Types.
537 class TypeD : public Type {
538 TypeD( double d ) : Type(DoubleCon), _d(d) {};
539 public:
540 virtual bool eq( const Type *t ) const;
541 virtual uint hash() const; // Type specific hashing
542 virtual bool singleton(void) const; // TRUE if type is a singleton
543 virtual bool empty(void) const; // TRUE if type is vacuous
544 public:
545 const double _d; // Double constant
546
547 static const TypeD *make(double d);
548
549 virtual bool is_finite() const; // Has a finite value
550 virtual bool is_nan() const; // Is not a number (NaN)
551
552 virtual const Type *xmeet( const Type *t ) const;
553 virtual const Type *xdual() const; // Compute dual right now.
554 // Convenience common pre-built types.
555 static const TypeD *MAX;
556 static const TypeD *MIN;
557 static const TypeD *ZERO; // positive zero only
558 static const TypeD *ONE;
559 static const TypeD *POS_INF;
560 static const TypeD *NEG_INF;
561 #ifndef PRODUCT
562 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
563 #endif
564 };
565
566 class TypeInteger : public Type {
567 protected:
568 TypeInteger(TYPES t, int w) : Type(t), _widen(w) {}
569
570 public:
571 const short _widen; // Limit on times we widen this sucker
572
573 virtual jlong hi_as_long() const = 0;
574 virtual jlong lo_as_long() const = 0;
575 jlong get_con_as_long(BasicType bt) const;
576 bool is_con() const { return lo_as_long() == hi_as_long(); }
577 virtual short widen_limit() const { return _widen; }
578
579 static const TypeInteger* make(jlong lo, jlong hi, int w, BasicType bt);
580
581 static const TypeInteger* bottom(BasicType type);
582 static const TypeInteger* zero(BasicType type);
583 static const TypeInteger* one(BasicType type);
584 static const TypeInteger* minus_1(BasicType type);
585 };
586
587
588
589 //------------------------------TypeInt----------------------------------------
590 // Class of integer ranges, the set of integers between a lower bound and an
591 // upper bound, inclusive.
592 class TypeInt : public TypeInteger {
593 TypeInt( jint lo, jint hi, int w );
594 protected:
595 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
596
597 public:
598 typedef jint NativeType;
599 virtual bool eq( const Type *t ) const;
600 virtual uint hash() const; // Type specific hashing
601 virtual bool singleton(void) const; // TRUE if type is a singleton
602 virtual bool empty(void) const; // TRUE if type is vacuous
603 const jint _lo, _hi; // Lower bound, upper bound
604
605 static const TypeInt *make(jint lo);
606 // must always specify w
607 static const TypeInt *make(jint lo, jint hi, int w);
608
609 // Check for single integer
610 bool is_con() const { return _lo==_hi; }
611 bool is_con(jint i) const { return is_con() && _lo == i; }
612 jint get_con() const { assert(is_con(), "" ); return _lo; }
613
614 virtual bool is_finite() const; // Has a finite value
615
616 virtual const Type *xmeet( const Type *t ) const;
617 virtual const Type *xdual() const; // Compute dual right now.
618 virtual const Type *widen( const Type *t, const Type* limit_type ) const;
619 virtual const Type *narrow( const Type *t ) const;
620
621 virtual jlong hi_as_long() const { return _hi; }
622 virtual jlong lo_as_long() const { return _lo; }
623
624 // Do not kill _widen bits.
625 // Convenience common pre-built types.
626 static const TypeInt *MAX;
627 static const TypeInt *MIN;
628 static const TypeInt *MINUS_1;
629 static const TypeInt *ZERO;
630 static const TypeInt *ONE;
631 static const TypeInt *BOOL;
632 static const TypeInt *CC;
633 static const TypeInt *CC_LT; // [-1] == MINUS_1
634 static const TypeInt *CC_GT; // [1] == ONE
635 static const TypeInt *CC_EQ; // [0] == ZERO
636 static const TypeInt *CC_LE; // [-1,0]
637 static const TypeInt *CC_GE; // [0,1] == BOOL (!)
638 static const TypeInt *BYTE;
639 static const TypeInt *UBYTE;
640 static const TypeInt *CHAR;
641 static const TypeInt *SHORT;
642 static const TypeInt *POS;
643 static const TypeInt *POS1;
644 static const TypeInt *INT;
645 static const TypeInt *SYMINT; // symmetric range [-max_jint..max_jint]
646 static const TypeInt *TYPE_DOMAIN; // alias for TypeInt::INT
647
648 static const TypeInt *as_self(const Type *t) { return t->is_int(); }
649 #ifndef PRODUCT
650 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
651 #endif
652 };
653
654
655 //------------------------------TypeLong---------------------------------------
656 // Class of long integer ranges, the set of integers between a lower bound and
657 // an upper bound, inclusive.
658 class TypeLong : public TypeInteger {
659 TypeLong( jlong lo, jlong hi, int w );
660 protected:
661 // Do not kill _widen bits.
662 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
663 public:
664 typedef jlong NativeType;
665 virtual bool eq( const Type *t ) const;
666 virtual uint hash() const; // Type specific hashing
667 virtual bool singleton(void) const; // TRUE if type is a singleton
668 virtual bool empty(void) const; // TRUE if type is vacuous
669 public:
670 const jlong _lo, _hi; // Lower bound, upper bound
671
672 static const TypeLong *make(jlong lo);
673 // must always specify w
674 static const TypeLong *make(jlong lo, jlong hi, int w);
675
676 // Check for single integer
677 bool is_con() const { return _lo==_hi; }
678 bool is_con(jlong i) const { return is_con() && _lo == i; }
679 jlong get_con() const { assert(is_con(), "" ); return _lo; }
680
681 // Check for positive 32-bit value.
682 int is_positive_int() const { return _lo >= 0 && _hi <= (jlong)max_jint; }
683
684 virtual bool is_finite() const; // Has a finite value
685
686 virtual jlong hi_as_long() const { return _hi; }
687 virtual jlong lo_as_long() const { return _lo; }
688
689 virtual const Type *xmeet( const Type *t ) const;
690 virtual const Type *xdual() const; // Compute dual right now.
691 virtual const Type *widen( const Type *t, const Type* limit_type ) const;
692 virtual const Type *narrow( const Type *t ) const;
693 // Convenience common pre-built types.
694 static const TypeLong *MAX;
695 static const TypeLong *MIN;
696 static const TypeLong *MINUS_1;
697 static const TypeLong *ZERO;
698 static const TypeLong *ONE;
699 static const TypeLong *POS;
700 static const TypeLong *LONG;
701 static const TypeLong *INT; // 32-bit subrange [min_jint..max_jint]
702 static const TypeLong *UINT; // 32-bit unsigned [0..max_juint]
703 static const TypeLong *TYPE_DOMAIN; // alias for TypeLong::LONG
704
705 // static convenience methods.
706 static const TypeLong *as_self(const Type *t) { return t->is_long(); }
707
708 #ifndef PRODUCT
709 virtual void dump2( Dict &d, uint, outputStream *st ) const;// Specialized per-Type dumping
710 #endif
711 };
712
713 //------------------------------TypeTuple--------------------------------------
714 // Class of Tuple Types, essentially type collections for function signatures
715 // and class layouts. It happens to also be a fast cache for the HotSpot
716 // signature types.
717 class TypeTuple : public Type {
718 TypeTuple( uint cnt, const Type **fields ) : Type(Tuple), _cnt(cnt), _fields(fields) { }
719
720 const uint _cnt; // Count of fields
721 const Type ** const _fields; // Array of field types
722
723 public:
724 virtual bool eq( const Type *t ) const;
725 virtual uint hash() const; // Type specific hashing
726 virtual bool singleton(void) const; // TRUE if type is a singleton
727 virtual bool empty(void) const; // TRUE if type is vacuous
728
729 // Accessors:
730 uint cnt() const { return _cnt; }
731 const Type* field_at(uint i) const {
732 assert(i < _cnt, "oob");
733 return _fields[i];
734 }
735 void set_field_at(uint i, const Type* t) {
736 assert(i < _cnt, "oob");
737 _fields[i] = t;
738 }
739
740 static const TypeTuple *make( uint cnt, const Type **fields );
741 static const TypeTuple *make_range(ciSignature *sig, InterfaceHandling interface_handling = ignore_interfaces);
742 static const TypeTuple *make_domain(ciInstanceKlass* recv, ciSignature *sig, InterfaceHandling interface_handling);
743
744 // Subroutine call type with space allocated for argument types
745 // Memory for Control, I_O, Memory, FramePtr, and ReturnAdr is allocated implicitly
746 static const Type **fields( uint arg_cnt );
747
748 virtual const Type *xmeet( const Type *t ) const;
749 virtual const Type *xdual() const; // Compute dual right now.
750 // Convenience common pre-built types.
751 static const TypeTuple *IFBOTH;
752 static const TypeTuple *IFFALSE;
753 static const TypeTuple *IFTRUE;
754 static const TypeTuple *IFNEITHER;
755 static const TypeTuple *LOOPBODY;
756 static const TypeTuple *MEMBAR;
757 static const TypeTuple *STORECONDITIONAL;
758 static const TypeTuple *START_I2C;
759 static const TypeTuple *INT_PAIR;
760 static const TypeTuple *LONG_PAIR;
761 static const TypeTuple *INT_CC_PAIR;
762 static const TypeTuple *LONG_CC_PAIR;
763 #ifndef PRODUCT
764 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping
765 #endif
766 };
767
768 //------------------------------TypeAry----------------------------------------
769 // Class of Array Types
770 class TypeAry : public Type {
771 TypeAry(const Type* elem, const TypeInt* size, bool stable) : Type(Array),
772 _elem(elem), _size(size), _stable(stable) {}
773 public:
774 virtual bool eq( const Type *t ) const;
775 virtual uint hash() const; // Type specific hashing
776 virtual bool singleton(void) const; // TRUE if type is a singleton
777 virtual bool empty(void) const; // TRUE if type is vacuous
778
779 private:
780 const Type *_elem; // Element type of array
781 const TypeInt *_size; // Elements in array
782 const bool _stable; // Are elements @Stable?
783 friend class TypeAryPtr;
784
785 public:
786 static const TypeAry* make(const Type* elem, const TypeInt* size, bool stable = false);
787
788 virtual const Type *xmeet( const Type *t ) const;
789 virtual const Type *xdual() const; // Compute dual right now.
790 bool ary_must_be_exact() const; // true if arrays of such are never generic
791 virtual const TypeAry* remove_speculative() const;
792 virtual const Type* cleanup_speculative() const;
793 #ifndef PRODUCT
794 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping
795 #endif
796 };
797
798 //------------------------------TypeVect---------------------------------------
799 // Class of Vector Types
800 class TypeVect : public Type {
801 const BasicType _elem_bt; // Vector's element type
802 const uint _length; // Elements in vector (power of 2)
803
804 protected:
805 TypeVect(TYPES t, BasicType elem_bt, uint length) : Type(t),
806 _elem_bt(elem_bt), _length(length) {}
807
808 public:
809 BasicType element_basic_type() const { return _elem_bt; }
810 uint length() const { return _length; }
811 uint length_in_bytes() const {
812 return _length * type2aelembytes(element_basic_type());
813 }
814
815 virtual bool eq(const Type* t) const;
816 virtual uint hash() const; // Type specific hashing
817 virtual bool singleton(void) const; // TRUE if type is a singleton
818 virtual bool empty(void) const; // TRUE if type is vacuous
819
820 static const TypeVect* make(const BasicType elem_bt, uint length, bool is_mask = false);
821 static const TypeVect* makemask(const BasicType elem_bt, uint length);
822
823 virtual const Type* xmeet( const Type *t) const;
824 virtual const Type* xdual() const; // Compute dual right now.
825
826 static const TypeVect* VECTA;
827 static const TypeVect* VECTS;
828 static const TypeVect* VECTD;
829 static const TypeVect* VECTX;
830 static const TypeVect* VECTY;
831 static const TypeVect* VECTZ;
832 static const TypeVect* VECTMASK;
833
834 #ifndef PRODUCT
835 virtual void dump2(Dict& d, uint, outputStream* st) const; // Specialized per-Type dumping
836 #endif
837 };
838
839 class TypeVectA : public TypeVect {
840 friend class TypeVect;
841 TypeVectA(BasicType elem_bt, uint length) : TypeVect(VectorA, elem_bt, length) {}
842 };
843
844 class TypeVectS : public TypeVect {
845 friend class TypeVect;
846 TypeVectS(BasicType elem_bt, uint length) : TypeVect(VectorS, elem_bt, length) {}
847 };
848
849 class TypeVectD : public TypeVect {
850 friend class TypeVect;
851 TypeVectD(BasicType elem_bt, uint length) : TypeVect(VectorD, elem_bt, length) {}
852 };
853
854 class TypeVectX : public TypeVect {
855 friend class TypeVect;
856 TypeVectX(BasicType elem_bt, uint length) : TypeVect(VectorX, elem_bt, length) {}
857 };
858
859 class TypeVectY : public TypeVect {
860 friend class TypeVect;
861 TypeVectY(BasicType elem_bt, uint length) : TypeVect(VectorY, elem_bt, length) {}
862 };
863
864 class TypeVectZ : public TypeVect {
865 friend class TypeVect;
866 TypeVectZ(BasicType elem_bt, uint length) : TypeVect(VectorZ, elem_bt, length) {}
867 };
868
869 class TypeVectMask : public TypeVect {
870 public:
871 friend class TypeVect;
872 TypeVectMask(BasicType elem_bt, uint length) : TypeVect(VectorMask, elem_bt, length) {}
873 static const TypeVectMask* make(const BasicType elem_bt, uint length);
874 };
875
876 // Set of implemented interfaces. Referenced from TypeOopPtr and TypeKlassPtr.
877 class TypeInterfaces : public Type {
878 private:
879 GrowableArrayFromArray<ciInstanceKlass*> _interfaces;
880 uint _hash;
881 ciInstanceKlass* _exact_klass;
882 DEBUG_ONLY(bool _initialized;)
883
884 void initialize();
885
886 void verify() const NOT_DEBUG_RETURN;
887 void compute_hash();
888 void compute_exact_klass();
889
890 TypeInterfaces(ciInstanceKlass** interfaces_base, int nb_interfaces);
891
892 NONCOPYABLE(TypeInterfaces);
893 public:
894 static const TypeInterfaces* make(GrowableArray<ciInstanceKlass*>* interfaces = nullptr);
895 bool eq(const Type* other) const;
896 bool eq(ciInstanceKlass* k) const;
897 uint hash() const;
898 const Type *xdual() const;
899 void dump(outputStream* st) const;
900 const TypeInterfaces* union_with(const TypeInterfaces* other) const;
901 const TypeInterfaces* intersection_with(const TypeInterfaces* other) const;
902 bool contains(const TypeInterfaces* other) const {
903 return intersection_with(other)->eq(other);
904 }
905 bool empty() const { return _interfaces.length() == 0; }
906
907 ciInstanceKlass* exact_klass() const;
908 void verify_is_loaded() const NOT_DEBUG_RETURN;
909
910 static int compare(ciInstanceKlass* const& k1, ciInstanceKlass* const& k2);
911 static int compare(ciInstanceKlass** k1, ciInstanceKlass** k2);
912
913 const Type* xmeet(const Type* t) const;
914
915 bool singleton(void) const;
916 };
917
918 //------------------------------TypePtr----------------------------------------
919 // Class of machine Pointer Types: raw data, instances or arrays.
920 // If the _base enum is AnyPtr, then this refers to all of the above.
921 // Otherwise the _base will indicate which subset of pointers is affected,
922 // and the class will be inherited from.
923 class TypePtr : public Type {
924 friend class TypeNarrowPtr;
925 friend class Type;
926 protected:
927 static const TypeInterfaces* interfaces(ciKlass*& k, bool klass, bool interface, bool array, InterfaceHandling interface_handling);
928
929 public:
930 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR };
931 protected:
932 TypePtr(TYPES t, PTR ptr, int offset,
933 const TypePtr* speculative = nullptr,
934 int inline_depth = InlineDepthBottom) :
935 Type(t), _speculative(speculative), _inline_depth(inline_depth), _offset(offset),
936 _ptr(ptr) {}
937 static const PTR ptr_meet[lastPTR][lastPTR];
938 static const PTR ptr_dual[lastPTR];
939 static const char * const ptr_msg[lastPTR];
940
941 enum {
942 InlineDepthBottom = INT_MAX,
943 InlineDepthTop = -InlineDepthBottom
944 };
945
946 // Extra type information profiling gave us. We propagate it the
947 // same way the rest of the type info is propagated. If we want to
948 // use it, then we have to emit a guard: this part of the type is
949 // not something we know but something we speculate about the type.
950 const TypePtr* _speculative;
951 // For speculative types, we record at what inlining depth the
952 // profiling point that provided the data is. We want to favor
953 // profile data coming from outer scopes which are likely better for
954 // the current compilation.
955 int _inline_depth;
956
957 // utility methods to work on the speculative part of the type
958 const TypePtr* dual_speculative() const;
959 const TypePtr* xmeet_speculative(const TypePtr* other) const;
960 bool eq_speculative(const TypePtr* other) const;
961 int hash_speculative() const;
962 const TypePtr* add_offset_speculative(intptr_t offset) const;
963 const TypePtr* with_offset_speculative(intptr_t offset) const;
964 #ifndef PRODUCT
965 void dump_speculative(outputStream *st) const;
966 #endif
967
968 // utility methods to work on the inline depth of the type
969 int dual_inline_depth() const;
970 int meet_inline_depth(int depth) const;
971 #ifndef PRODUCT
972 void dump_inline_depth(outputStream *st) const;
973 #endif
974
975 // TypeInstPtr (TypeAryPtr resp.) and TypeInstKlassPtr (TypeAryKlassPtr resp.) implement very similar meet logic.
976 // The logic for meeting 2 instances (2 arrays resp.) is shared in the 2 utility methods below. However the logic for
977 // the oop and klass versions can be slightly different and extra logic may have to be executed depending on what
978 // exact case the meet falls into. The MeetResult struct is used by the utility methods to communicate what case was
979 // encountered so the right logic specific to klasses or oops can be executed.,
980 enum MeetResult {
981 QUICK,
982 UNLOADED,
983 SUBTYPE,
984 NOT_SUBTYPE,
985 LCA
986 };
987 template<class T> static TypePtr::MeetResult meet_instptr(PTR& ptr, const TypeInterfaces*& interfaces, const T* this_type,
988 const T* other_type, ciKlass*& res_klass, bool& res_xk);
989
990 template<class T> static MeetResult meet_aryptr(PTR& ptr, const Type*& elem, const T* this_ary, const T* other_ary,
991 ciKlass*& res_klass, bool& res_xk);
992
993 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);
994 template <class T1, class T2> static bool is_same_java_type_as_helper_for_instance(const T1* this_one, const T2* other);
995 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);
996 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);
997 template <class T1, class T2> static bool is_same_java_type_as_helper_for_array(const T1* this_one, const T2* other);
998 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);
999 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);
1000 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);
1001 public:
1002 const int _offset; // Offset into oop, with TOP & BOT
1003 const PTR _ptr; // Pointer equivalence class
1004
1005 int offset() const { return _offset; }
1006 PTR ptr() const { return _ptr; }
1007
1008 static const TypePtr *make(TYPES t, PTR ptr, int offset,
1009 const TypePtr* speculative = nullptr,
1010 int inline_depth = InlineDepthBottom);
1011
1012 // Return a 'ptr' version of this type
1013 virtual const TypePtr* cast_to_ptr_type(PTR ptr) const;
1014
1015 virtual intptr_t get_con() const;
1016
1017 int xadd_offset( intptr_t offset ) const;
1018 virtual const TypePtr* add_offset(intptr_t offset) const;
1019 virtual const TypePtr* with_offset(intptr_t offset) const;
1020 virtual bool eq(const Type *t) const;
1021 virtual uint hash() const; // Type specific hashing
1022
1023 virtual bool singleton(void) const; // TRUE if type is a singleton
1024 virtual bool empty(void) const; // TRUE if type is vacuous
1025 virtual const Type *xmeet( const Type *t ) const;
1026 virtual const Type *xmeet_helper( const Type *t ) const;
1027 int meet_offset( int offset ) const;
1028 int dual_offset( ) const;
1029 virtual const Type *xdual() const; // Compute dual right now.
1030
1031 // meet, dual and join over pointer equivalence sets
1032 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; }
1033 PTR dual_ptr() const { return ptr_dual[ptr()]; }
1034
1035 // This is textually confusing unless one recalls that
1036 // join(t) == dual()->meet(t->dual())->dual().
1037 PTR join_ptr( const PTR in_ptr ) const {
1038 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ];
1039 }
1040
1041 // Speculative type helper methods.
1042 virtual const TypePtr* speculative() const { return _speculative; }
1043 int inline_depth() const { return _inline_depth; }
1044 virtual ciKlass* speculative_type() const;
1045 virtual ciKlass* speculative_type_not_null() const;
1046 virtual bool speculative_maybe_null() const;
1047 virtual bool speculative_always_null() const;
1048 virtual const TypePtr* remove_speculative() const;
1049 virtual const Type* cleanup_speculative() const;
1050 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const;
1051 virtual bool would_improve_ptr(ProfilePtrKind maybe_null) const;
1052 virtual const TypePtr* with_inline_depth(int depth) const;
1053
1054 virtual bool maybe_null() const { return meet_ptr(Null) == ptr(); }
1055
1056 // Tests for relation to centerline of type lattice:
1057 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); }
1058 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); }
1059 // Convenience common pre-built types.
1060 static const TypePtr *NULL_PTR;
1061 static const TypePtr *NOTNULL;
1062 static const TypePtr *BOTTOM;
1063 #ifndef PRODUCT
1064 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1065 #endif
1066 };
1067
1068 //------------------------------TypeRawPtr-------------------------------------
1069 // Class of raw pointers, pointers to things other than Oops. Examples
1070 // include the stack pointer, top of heap, card-marking area, handles, etc.
1071 class TypeRawPtr : public TypePtr {
1072 protected:
1073 TypeRawPtr( PTR ptr, address bits ) : TypePtr(RawPtr,ptr,0), _bits(bits){}
1074 public:
1075 virtual bool eq( const Type *t ) const;
1076 virtual uint hash() const; // Type specific hashing
1077
1078 const address _bits; // Constant value, if applicable
1079
1080 static const TypeRawPtr *make( PTR ptr );
1081 static const TypeRawPtr *make( address bits );
1082
1083 // Return a 'ptr' version of this type
1084 virtual const TypeRawPtr* cast_to_ptr_type(PTR ptr) const;
1085
1086 virtual intptr_t get_con() const;
1087
1088 virtual const TypePtr* add_offset(intptr_t offset) const;
1089 virtual const TypeRawPtr* with_offset(intptr_t offset) const { ShouldNotReachHere(); return nullptr;}
1090
1091 virtual const Type *xmeet( const Type *t ) const;
1092 virtual const Type *xdual() const; // Compute dual right now.
1093 // Convenience common pre-built types.
1094 static const TypeRawPtr *BOTTOM;
1095 static const TypeRawPtr *NOTNULL;
1096 #ifndef PRODUCT
1097 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1098 #endif
1099 };
1100
1101 //------------------------------TypeOopPtr-------------------------------------
1102 // Some kind of oop (Java pointer), either instance or array.
1103 class TypeOopPtr : public TypePtr {
1104 friend class TypeAry;
1105 friend class TypePtr;
1106 friend class TypeInstPtr;
1107 friend class TypeAryPtr;
1108 protected:
1109 TypeOopPtr(TYPES t, PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, bool xk, ciObject* o, int offset, int instance_id,
1110 const TypePtr* speculative, int inline_depth);
1111 public:
1112 virtual bool eq( const Type *t ) const;
1113 virtual uint hash() const; // Type specific hashing
1114 virtual bool singleton(void) const; // TRUE if type is a singleton
1115 enum {
1116 InstanceTop = -1, // undefined instance
1117 InstanceBot = 0 // any possible instance
1118 };
1119 protected:
1120
1121 // Oop is null, unless this is a constant oop.
1122 ciObject* _const_oop; // Constant oop
1123 // If _klass is null, then so is _sig. This is an unloaded klass.
1124 ciKlass* _klass; // Klass object
1125
1126 const TypeInterfaces* _interfaces;
1127
1128 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.)
1129 bool _klass_is_exact;
1130 bool _is_ptr_to_narrowoop;
1131 bool _is_ptr_to_narrowklass;
1132 bool _is_ptr_to_boxed_value;
1133
1134 // If not InstanceTop or InstanceBot, indicates that this is
1135 // a particular instance of this type which is distinct.
1136 // This is the node index of the allocation node creating this instance.
1137 int _instance_id;
1138
1139 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact, InterfaceHandling interface_handling);
1140
1141 int dual_instance_id() const;
1142 int meet_instance_id(int uid) const;
1143
1144 const TypeInterfaces* meet_interfaces(const TypeOopPtr* other) const;
1145
1146 // Do not allow interface-vs.-noninterface joins to collapse to top.
1147 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1148
1149 virtual ciKlass* exact_klass_helper() const { return nullptr; }
1150 virtual ciKlass* klass() const { return _klass; }
1151
1152 public:
1153
1154 bool is_java_subtype_of(const TypeOopPtr* other) const {
1155 return is_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1156 }
1157
1158 bool is_same_java_type_as(const TypePtr* other) const {
1159 return is_same_java_type_as_helper(other->is_oopptr());
1160 }
1161
1162 virtual bool is_same_java_type_as_helper(const TypeOopPtr* other) const {
1163 ShouldNotReachHere(); return false;
1164 }
1165
1166 bool maybe_java_subtype_of(const TypeOopPtr* other) const {
1167 return maybe_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1168 }
1169 virtual bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1170 virtual bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1171
1172
1173 // Creates a type given a klass. Correctly handles multi-dimensional arrays
1174 // Respects UseUniqueSubclasses.
1175 // If the klass is final, the resulting type will be exact.
1176 static const TypeOopPtr* make_from_klass(ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces) {
1177 return make_from_klass_common(klass, true, false, interface_handling);
1178 }
1179 // Same as before, but will produce an exact type, even if
1180 // the klass is not final, as long as it has exactly one implementation.
1181 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass, InterfaceHandling interface_handling= ignore_interfaces) {
1182 return make_from_klass_common(klass, true, true, interface_handling);
1183 }
1184 // Same as before, but does not respects UseUniqueSubclasses.
1185 // Use this only for creating array element types.
1186 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces) {
1187 return make_from_klass_common(klass, false, false, interface_handling);
1188 }
1189 // Creates a singleton type given an object.
1190 // If the object cannot be rendered as a constant,
1191 // may return a non-singleton type.
1192 // If require_constant, produce a null if a singleton is not possible.
1193 static const TypeOopPtr* make_from_constant(ciObject* o,
1194 bool require_constant = false);
1195
1196 // Make a generic (unclassed) pointer to an oop.
1197 static const TypeOopPtr* make(PTR ptr, int offset, int instance_id,
1198 const TypePtr* speculative = nullptr,
1199 int inline_depth = InlineDepthBottom);
1200
1201 ciObject* const_oop() const { return _const_oop; }
1202 // Exact klass, possibly an interface or an array of interface
1203 ciKlass* exact_klass(bool maybe_null = false) const { assert(klass_is_exact(), ""); ciKlass* k = exact_klass_helper(); assert(k != nullptr || maybe_null, ""); return k; }
1204 ciKlass* unloaded_klass() const { assert(!is_loaded(), "only for unloaded types"); return klass(); }
1205
1206 virtual bool is_loaded() const { return klass()->is_loaded(); }
1207 virtual bool klass_is_exact() const { return _klass_is_exact; }
1208
1209 // Returns true if this pointer points at memory which contains a
1210 // compressed oop references.
1211 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; }
1212 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; }
1213 bool is_ptr_to_boxed_value() const { return _is_ptr_to_boxed_value; }
1214 bool is_known_instance() const { return _instance_id > 0; }
1215 int instance_id() const { return _instance_id; }
1216 bool is_known_instance_field() const { return is_known_instance() && _offset >= 0; }
1217
1218 virtual intptr_t get_con() const;
1219
1220 virtual const TypeOopPtr* cast_to_ptr_type(PTR ptr) const;
1221
1222 virtual const TypeOopPtr* cast_to_exactness(bool klass_is_exact) const;
1223
1224 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const;
1225
1226 // corresponding pointer to klass, for a given instance
1227 virtual const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1228
1229 virtual const TypeOopPtr* with_offset(intptr_t offset) const;
1230 virtual const TypePtr* add_offset(intptr_t offset) const;
1231
1232 // Speculative type helper methods.
1233 virtual const TypeOopPtr* remove_speculative() const;
1234 virtual const Type* cleanup_speculative() const;
1235 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const;
1236 virtual const TypePtr* with_inline_depth(int depth) const;
1237
1238 virtual const TypePtr* with_instance_id(int instance_id) const;
1239
1240 virtual const Type *xdual() const; // Compute dual right now.
1241 // the core of the computation of the meet for TypeOopPtr and for its subclasses
1242 virtual const Type *xmeet_helper(const Type *t) const;
1243
1244 // Convenience common pre-built type.
1245 static const TypeOopPtr *BOTTOM;
1246 #ifndef PRODUCT
1247 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1248 #endif
1249 private:
1250 virtual bool is_meet_subtype_of(const TypePtr* other) const {
1251 return is_meet_subtype_of_helper(other->is_oopptr(), klass_is_exact(), other->is_oopptr()->klass_is_exact());
1252 }
1253
1254 virtual bool is_meet_subtype_of_helper(const TypeOopPtr* other, bool this_xk, bool other_xk) const {
1255 ShouldNotReachHere(); return false;
1256 }
1257
1258 virtual const TypeInterfaces* interfaces() const {
1259 return _interfaces;
1260 };
1261
1262 const TypeOopPtr* is_reference_type(const Type* other) const {
1263 return other->isa_oopptr();
1264 }
1265
1266 const TypeAryPtr* is_array_type(const TypeOopPtr* other) const {
1267 return other->isa_aryptr();
1268 }
1269
1270 const TypeInstPtr* is_instance_type(const TypeOopPtr* other) const {
1271 return other->isa_instptr();
1272 }
1273 };
1274
1275 //------------------------------TypeInstPtr------------------------------------
1276 // Class of Java object pointers, pointing either to non-array Java instances
1277 // or to a Klass* (including array klasses).
1278 class TypeInstPtr : public TypeOopPtr {
1279 TypeInstPtr(PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, bool xk, ciObject* o, int off, int instance_id,
1280 const TypePtr* speculative, int inline_depth);
1281 virtual bool eq( const Type *t ) const;
1282 virtual uint hash() const; // Type specific hashing
1283
1284 ciKlass* exact_klass_helper() const;
1285
1286 public:
1287
1288 // Instance klass, ignoring any interface
1289 ciInstanceKlass* instance_klass() const {
1290 assert(!(klass()->is_loaded() && klass()->is_interface()), "");
1291 return klass()->as_instance_klass();
1292 }
1293
1294 bool is_same_java_type_as_helper(const TypeOopPtr* other) const;
1295 bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1296 bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1297
1298 // Make a pointer to a constant oop.
1299 static const TypeInstPtr *make(ciObject* o) {
1300 ciKlass* k = o->klass();
1301 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1302 return make(TypePtr::Constant, k, interfaces, true, o, 0, InstanceBot);
1303 }
1304 // Make a pointer to a constant oop with offset.
1305 static const TypeInstPtr *make(ciObject* o, int offset) {
1306 ciKlass* k = o->klass();
1307 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1308 return make(TypePtr::Constant, k, interfaces, true, o, offset, InstanceBot);
1309 }
1310
1311 // Make a pointer to some value of type klass.
1312 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces) {
1313 const TypeInterfaces* interfaces = TypePtr::interfaces(klass, true, true, false, interface_handling);
1314 return make(ptr, klass, interfaces, false, nullptr, 0, InstanceBot);
1315 }
1316
1317 // Make a pointer to some non-polymorphic value of exactly type klass.
1318 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) {
1319 const TypeInterfaces* interfaces = TypePtr::interfaces(klass, true, false, false, ignore_interfaces);
1320 return make(ptr, klass, interfaces, true, nullptr, 0, InstanceBot);
1321 }
1322
1323 // Make a pointer to some value of type klass with offset.
1324 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, int offset) {
1325 const TypeInterfaces* interfaces = TypePtr::interfaces(klass, true, false, false, ignore_interfaces);
1326 return make(ptr, klass, interfaces, false, nullptr, offset, InstanceBot);
1327 }
1328
1329 static const TypeInstPtr *make(PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, bool xk, ciObject* o, int offset,
1330 int instance_id = InstanceBot,
1331 const TypePtr* speculative = nullptr,
1332 int inline_depth = InlineDepthBottom);
1333
1334 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id = InstanceBot) {
1335 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1336 return make(ptr, k, interfaces, xk, o, offset, instance_id);
1337 }
1338
1339 /** Create constant type for a constant boxed value */
1340 const Type* get_const_boxed_value() const;
1341
1342 // If this is a java.lang.Class constant, return the type for it or null.
1343 // Pass to Type::get_const_type to turn it to a type, which will usually
1344 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc.
1345 ciType* java_mirror_type() const;
1346
1347 virtual const TypeInstPtr* cast_to_ptr_type(PTR ptr) const;
1348
1349 virtual const TypeInstPtr* cast_to_exactness(bool klass_is_exact) const;
1350
1351 virtual const TypeInstPtr* cast_to_instance_id(int instance_id) const;
1352
1353 virtual const TypePtr* add_offset(intptr_t offset) const;
1354 virtual const TypeInstPtr* with_offset(intptr_t offset) const;
1355
1356 // Speculative type helper methods.
1357 virtual const TypeInstPtr* remove_speculative() const;
1358 const TypeInstPtr* with_speculative(const TypePtr* speculative) const;
1359 virtual const TypePtr* with_inline_depth(int depth) const;
1360 virtual const TypePtr* with_instance_id(int instance_id) const;
1361
1362 // the core of the computation of the meet of 2 types
1363 virtual const Type *xmeet_helper(const Type *t) const;
1364 virtual const TypeInstPtr *xmeet_unloaded(const TypeInstPtr *tinst, const TypeInterfaces* interfaces) const;
1365 virtual const Type *xdual() const; // Compute dual right now.
1366
1367 const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1368
1369 // Convenience common pre-built types.
1370 static const TypeInstPtr *NOTNULL;
1371 static const TypeInstPtr *BOTTOM;
1372 static const TypeInstPtr *MIRROR;
1373 static const TypeInstPtr *MARK;
1374 static const TypeInstPtr *KLASS;
1375 #ifndef PRODUCT
1376 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1377 #endif
1378
1379 private:
1380 virtual bool is_meet_subtype_of_helper(const TypeOopPtr* other, bool this_xk, bool other_xk) const;
1381
1382 virtual bool is_meet_same_type_as(const TypePtr* other) const {
1383 return _klass->equals(other->is_instptr()->_klass) && _interfaces->eq(other->is_instptr()->_interfaces);
1384 }
1385
1386 };
1387
1388 //------------------------------TypeAryPtr-------------------------------------
1389 // Class of Java array pointers
1390 class TypeAryPtr : public TypeOopPtr {
1391 friend class Type;
1392 friend class TypePtr;
1393
1394 TypeAryPtr( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk,
1395 int offset, int instance_id, bool is_autobox_cache,
1396 const TypePtr* speculative, int inline_depth)
1397 : TypeOopPtr(AryPtr,ptr,k,_array_interfaces,xk,o,offset, instance_id, speculative, inline_depth),
1398 _ary(ary),
1399 _is_autobox_cache(is_autobox_cache)
1400 {
1401 int dummy;
1402 bool top_or_bottom = (base_element_type(dummy) == Type::TOP || base_element_type(dummy) == Type::BOTTOM);
1403
1404 if (UseCompressedOops && (elem()->make_oopptr() != nullptr && !top_or_bottom) &&
1405 _offset != 0 && _offset != arrayOopDesc::length_offset_in_bytes() &&
1406 _offset != Type::klass_offset()) {
1407 _is_ptr_to_narrowoop = true;
1408 }
1409
1410 }
1411 virtual bool eq( const Type *t ) const;
1412 virtual uint hash() const; // Type specific hashing
1413 const TypeAry *_ary; // Array we point into
1414 const bool _is_autobox_cache;
1415
1416 ciKlass* compute_klass() const;
1417
1418 // A pointer to delay allocation to Type::Initialize_shared()
1419
1420 static const TypeInterfaces* _array_interfaces;
1421 ciKlass* exact_klass_helper() const;
1422 // Only guaranteed non null for array of basic types
1423 ciKlass* klass() const;
1424
1425 public:
1426
1427 bool is_same_java_type_as_helper(const TypeOopPtr* other) const;
1428 bool is_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1429 bool maybe_java_subtype_of_helper(const TypeOopPtr* other, bool this_exact, bool other_exact) const;
1430
1431 // returns base element type, an instance klass (and not interface) for object arrays
1432 const Type* base_element_type(int& dims) const;
1433
1434 // Accessors
1435 bool is_loaded() const { return (_ary->_elem->make_oopptr() ? _ary->_elem->make_oopptr()->is_loaded() : true); }
1436
1437 const TypeAry* ary() const { return _ary; }
1438 const Type* elem() const { return _ary->_elem; }
1439 const TypeInt* size() const { return _ary->_size; }
1440 bool is_stable() const { return _ary->_stable; }
1441
1442 bool is_autobox_cache() const { return _is_autobox_cache; }
1443
1444 static const TypeAryPtr *make(PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset,
1445 int instance_id = InstanceBot,
1446 const TypePtr* speculative = nullptr,
1447 int inline_depth = InlineDepthBottom);
1448 // Constant pointer to array
1449 static const TypeAryPtr *make(PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, int offset,
1450 int instance_id = InstanceBot,
1451 const TypePtr* speculative = nullptr,
1452 int inline_depth = InlineDepthBottom, bool is_autobox_cache = false);
1453
1454 // Return a 'ptr' version of this type
1455 virtual const TypeAryPtr* cast_to_ptr_type(PTR ptr) const;
1456
1457 virtual const TypeAryPtr* cast_to_exactness(bool klass_is_exact) const;
1458
1459 virtual const TypeAryPtr* cast_to_instance_id(int instance_id) const;
1460
1461 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const;
1462 virtual const TypeInt* narrow_size_type(const TypeInt* size) const;
1463
1464 virtual bool empty(void) const; // TRUE if type is vacuous
1465 virtual const TypePtr *add_offset( intptr_t offset ) const;
1466 virtual const TypeAryPtr *with_offset( intptr_t offset ) const;
1467 const TypeAryPtr* with_ary(const TypeAry* ary) const;
1468
1469 // Speculative type helper methods.
1470 virtual const TypeAryPtr* remove_speculative() const;
1471 virtual const TypePtr* with_inline_depth(int depth) const;
1472 virtual const TypePtr* with_instance_id(int instance_id) const;
1473
1474 // the core of the computation of the meet of 2 types
1475 virtual const Type *xmeet_helper(const Type *t) const;
1476 virtual const Type *xdual() const; // Compute dual right now.
1477
1478 const TypeAryPtr* cast_to_stable(bool stable, int stable_dimension = 1) const;
1479 int stable_dimension() const;
1480
1481 const TypeAryPtr* cast_to_autobox_cache() const;
1482
1483 static jint max_array_length(BasicType etype) ;
1484 virtual const TypeKlassPtr* as_klass_type(bool try_for_exact = false) const;
1485
1486 // Convenience common pre-built types.
1487 static const TypeAryPtr* BOTTOM;
1488 static const TypeAryPtr* RANGE;
1489 static const TypeAryPtr* OOPS;
1490 static const TypeAryPtr* NARROWOOPS;
1491 static const TypeAryPtr* BYTES;
1492 static const TypeAryPtr* SHORTS;
1493 static const TypeAryPtr* CHARS;
1494 static const TypeAryPtr* INTS;
1495 static const TypeAryPtr* LONGS;
1496 static const TypeAryPtr* FLOATS;
1497 static const TypeAryPtr* DOUBLES;
1498 // selects one of the above:
1499 static const TypeAryPtr *get_array_body_type(BasicType elem) {
1500 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != nullptr, "bad elem type");
1501 return _array_body_type[elem];
1502 }
1503 static const TypeAryPtr *_array_body_type[T_CONFLICT+1];
1504 // sharpen the type of an int which is used as an array size
1505 #ifndef PRODUCT
1506 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1507 #endif
1508 private:
1509 virtual bool is_meet_subtype_of_helper(const TypeOopPtr* other, bool this_xk, bool other_xk) const;
1510 };
1511
1512 //------------------------------TypeMetadataPtr-------------------------------------
1513 // Some kind of metadata, either Method*, MethodData* or CPCacheOop
1514 class TypeMetadataPtr : public TypePtr {
1515 protected:
1516 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, int offset);
1517 // Do not allow interface-vs.-noninterface joins to collapse to top.
1518 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1519 public:
1520 virtual bool eq( const Type *t ) const;
1521 virtual uint hash() const; // Type specific hashing
1522 virtual bool singleton(void) const; // TRUE if type is a singleton
1523
1524 private:
1525 ciMetadata* _metadata;
1526
1527 public:
1528 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, int offset);
1529
1530 static const TypeMetadataPtr* make(ciMethod* m);
1531 static const TypeMetadataPtr* make(ciMethodData* m);
1532
1533 ciMetadata* metadata() const { return _metadata; }
1534
1535 virtual const TypeMetadataPtr* cast_to_ptr_type(PTR ptr) const;
1536
1537 virtual const TypePtr *add_offset( intptr_t offset ) const;
1538
1539 virtual const Type *xmeet( const Type *t ) const;
1540 virtual const Type *xdual() const; // Compute dual right now.
1541
1542 virtual intptr_t get_con() const;
1543
1544 // Convenience common pre-built types.
1545 static const TypeMetadataPtr *BOTTOM;
1546
1547 #ifndef PRODUCT
1548 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1549 #endif
1550 };
1551
1552 //------------------------------TypeKlassPtr-----------------------------------
1553 // Class of Java Klass pointers
1554 class TypeKlassPtr : public TypePtr {
1555 friend class TypeInstKlassPtr;
1556 friend class TypeAryKlassPtr;
1557 friend class TypePtr;
1558 protected:
1559 TypeKlassPtr(TYPES t, PTR ptr, ciKlass* klass, const TypeInterfaces* interfaces, int offset);
1560
1561 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1562
1563 public:
1564 virtual bool eq( const Type *t ) const;
1565 virtual uint hash() const;
1566 virtual bool singleton(void) const; // TRUE if type is a singleton
1567
1568 protected:
1569
1570 ciKlass* _klass;
1571 const TypeInterfaces* _interfaces;
1572 const TypeInterfaces* meet_interfaces(const TypeKlassPtr* other) const;
1573 virtual bool must_be_exact() const { ShouldNotReachHere(); return false; }
1574 virtual ciKlass* exact_klass_helper() const;
1575 virtual ciKlass* klass() const { return _klass; }
1576
1577 public:
1578
1579 bool is_java_subtype_of(const TypeKlassPtr* other) const {
1580 return is_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1581 }
1582 bool is_same_java_type_as(const TypePtr* other) const {
1583 return is_same_java_type_as_helper(other->is_klassptr());
1584 }
1585
1586 bool maybe_java_subtype_of(const TypeKlassPtr* other) const {
1587 return maybe_java_subtype_of_helper(other, klass_is_exact(), other->klass_is_exact());
1588 }
1589 virtual bool is_same_java_type_as_helper(const TypeKlassPtr* other) const { ShouldNotReachHere(); return false; }
1590 virtual bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1591 virtual bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const { ShouldNotReachHere(); return false; }
1592
1593 // Exact klass, possibly an interface or an array of interface
1594 ciKlass* exact_klass(bool maybe_null = false) const { assert(klass_is_exact(), ""); ciKlass* k = exact_klass_helper(); assert(k != nullptr || maybe_null, ""); return k; }
1595 virtual bool klass_is_exact() const { return _ptr == Constant; }
1596
1597 static const TypeKlassPtr* make(ciKlass* klass, InterfaceHandling interface_handling = ignore_interfaces);
1598 static const TypeKlassPtr *make(PTR ptr, ciKlass* klass, int offset, InterfaceHandling interface_handling = ignore_interfaces);
1599
1600 virtual bool is_loaded() const { return _klass->is_loaded(); }
1601
1602 virtual const TypeKlassPtr* cast_to_ptr_type(PTR ptr) const { ShouldNotReachHere(); return nullptr; }
1603
1604 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const { ShouldNotReachHere(); return nullptr; }
1605
1606 // corresponding pointer to instance, for a given class
1607 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const { ShouldNotReachHere(); return nullptr; }
1608
1609 virtual const TypePtr *add_offset( intptr_t offset ) const { ShouldNotReachHere(); return nullptr; }
1610 virtual const Type *xmeet( const Type *t ) const { ShouldNotReachHere(); return nullptr; }
1611 virtual const Type *xdual() const { ShouldNotReachHere(); return nullptr; }
1612
1613 virtual intptr_t get_con() const;
1614
1615 virtual const TypeKlassPtr* with_offset(intptr_t offset) const { ShouldNotReachHere(); return nullptr; }
1616
1617 virtual const TypeKlassPtr* try_improve() const { return this; }
1618
1619 #ifndef PRODUCT
1620 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1621 #endif
1622 private:
1623 virtual bool is_meet_subtype_of(const TypePtr* other) const {
1624 return is_meet_subtype_of_helper(other->is_klassptr(), klass_is_exact(), other->is_klassptr()->klass_is_exact());
1625 }
1626
1627 virtual bool is_meet_subtype_of_helper(const TypeKlassPtr* other, bool this_xk, bool other_xk) const {
1628 ShouldNotReachHere(); return false;
1629 }
1630
1631 virtual const TypeInterfaces* interfaces() const {
1632 return _interfaces;
1633 };
1634
1635 const TypeKlassPtr* is_reference_type(const Type* other) const {
1636 return other->isa_klassptr();
1637 }
1638
1639 const TypeAryKlassPtr* is_array_type(const TypeKlassPtr* other) const {
1640 return other->isa_aryklassptr();
1641 }
1642
1643 const TypeInstKlassPtr* is_instance_type(const TypeKlassPtr* other) const {
1644 return other->isa_instklassptr();
1645 }
1646 };
1647
1648 // Instance klass pointer, mirrors TypeInstPtr
1649 class TypeInstKlassPtr : public TypeKlassPtr {
1650
1651 TypeInstKlassPtr(PTR ptr, ciKlass* klass, const TypeInterfaces* interfaces, int offset)
1652 : TypeKlassPtr(InstKlassPtr, ptr, klass, interfaces, offset) {
1653 assert(klass->is_instance_klass() && (!klass->is_loaded() || !klass->is_interface()), "");
1654 }
1655
1656 virtual bool must_be_exact() const;
1657
1658 public:
1659 // Instance klass ignoring any interface
1660 ciInstanceKlass* instance_klass() const {
1661 assert(!klass()->is_interface(), "");
1662 return klass()->as_instance_klass();
1663 }
1664
1665 bool is_same_java_type_as_helper(const TypeKlassPtr* other) const;
1666 bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1667 bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1668
1669 static const TypeInstKlassPtr *make(ciKlass* k, InterfaceHandling interface_handling) {
1670 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, true, false, interface_handling);
1671 return make(TypePtr::Constant, k, interfaces, 0);
1672 }
1673 static const TypeInstKlassPtr* make(PTR ptr, ciKlass* k, const TypeInterfaces* interfaces, int offset);
1674
1675 static const TypeInstKlassPtr* make(PTR ptr, ciKlass* k, int offset) {
1676 const TypeInterfaces* interfaces = TypePtr::interfaces(k, true, false, false, ignore_interfaces);
1677 return make(ptr, k, interfaces, offset);
1678 }
1679
1680 virtual const TypeInstKlassPtr* cast_to_ptr_type(PTR ptr) const;
1681
1682 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const;
1683
1684 // corresponding pointer to instance, for a given class
1685 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const;
1686 virtual uint hash() const;
1687 virtual bool eq(const Type *t) const;
1688
1689 virtual const TypePtr *add_offset( intptr_t offset ) const;
1690 virtual const Type *xmeet( const Type *t ) const;
1691 virtual const Type *xdual() const;
1692 virtual const TypeInstKlassPtr* with_offset(intptr_t offset) const;
1693
1694 virtual const TypeKlassPtr* try_improve() const;
1695
1696 // Convenience common pre-built types.
1697 static const TypeInstKlassPtr* OBJECT; // Not-null object klass or below
1698 static const TypeInstKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same
1699 private:
1700 virtual bool is_meet_subtype_of_helper(const TypeKlassPtr* other, bool this_xk, bool other_xk) const;
1701 };
1702
1703 // Array klass pointer, mirrors TypeAryPtr
1704 class TypeAryKlassPtr : public TypeKlassPtr {
1705 friend class TypeInstKlassPtr;
1706 friend class Type;
1707 friend class TypePtr;
1708
1709 const Type *_elem;
1710
1711 static const TypeInterfaces* _array_interfaces;
1712 TypeAryKlassPtr(PTR ptr, const Type *elem, ciKlass* klass, int offset)
1713 : TypeKlassPtr(AryKlassPtr, ptr, klass, _array_interfaces, offset), _elem(elem) {
1714 assert(klass == nullptr || klass->is_type_array_klass() || !klass->as_obj_array_klass()->base_element_klass()->is_interface(), "");
1715 }
1716
1717 virtual ciKlass* exact_klass_helper() const;
1718 // Only guaranteed non null for array of basic types
1719 virtual ciKlass* klass() const;
1720
1721 virtual bool must_be_exact() const;
1722
1723 public:
1724
1725 // returns base element type, an instance klass (and not interface) for object arrays
1726 const Type* base_element_type(int& dims) const;
1727
1728 static const TypeAryKlassPtr *make(PTR ptr, ciKlass* k, int offset, InterfaceHandling interface_handling);
1729
1730 bool is_same_java_type_as_helper(const TypeKlassPtr* other) const;
1731 bool is_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1732 bool maybe_java_subtype_of_helper(const TypeKlassPtr* other, bool this_exact, bool other_exact) const;
1733
1734 bool is_loaded() const { return (_elem->isa_klassptr() ? _elem->is_klassptr()->is_loaded() : true); }
1735
1736 static const TypeAryKlassPtr *make(PTR ptr, const Type *elem, ciKlass* k, int offset);
1737 static const TypeAryKlassPtr* make(ciKlass* klass, InterfaceHandling interface_handling);
1738
1739 const Type *elem() const { return _elem; }
1740
1741 virtual bool eq(const Type *t) const;
1742 virtual uint hash() const; // Type specific hashing
1743
1744 virtual const TypeAryKlassPtr* cast_to_ptr_type(PTR ptr) const;
1745
1746 virtual const TypeKlassPtr *cast_to_exactness(bool klass_is_exact) const;
1747
1748 // corresponding pointer to instance, for a given class
1749 virtual const TypeOopPtr* as_instance_type(bool klass_change = true) const;
1750
1751 virtual const TypePtr *add_offset( intptr_t offset ) const;
1752 virtual const Type *xmeet( const Type *t ) const;
1753 virtual const Type *xdual() const; // Compute dual right now.
1754
1755 virtual const TypeAryKlassPtr* with_offset(intptr_t offset) const;
1756
1757 virtual bool empty(void) const {
1758 return TypeKlassPtr::empty() || _elem->empty();
1759 }
1760
1761 #ifndef PRODUCT
1762 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1763 #endif
1764 private:
1765 virtual bool is_meet_subtype_of_helper(const TypeKlassPtr* other, bool this_xk, bool other_xk) const;
1766 };
1767
1768 class TypeNarrowPtr : public Type {
1769 protected:
1770 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR
1771
1772 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): Type(t),
1773 _ptrtype(ptrtype) {
1774 assert(ptrtype->offset() == 0 ||
1775 ptrtype->offset() == OffsetBot ||
1776 ptrtype->offset() == OffsetTop, "no real offsets");
1777 }
1778
1779 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0;
1780 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0;
1781 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0;
1782 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0;
1783 // Do not allow interface-vs.-noninterface joins to collapse to top.
1784 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const;
1785 public:
1786 virtual bool eq( const Type *t ) const;
1787 virtual uint hash() const; // Type specific hashing
1788 virtual bool singleton(void) const; // TRUE if type is a singleton
1789
1790 virtual const Type *xmeet( const Type *t ) const;
1791 virtual const Type *xdual() const; // Compute dual right now.
1792
1793 virtual intptr_t get_con() const;
1794
1795 virtual bool empty(void) const; // TRUE if type is vacuous
1796
1797 // returns the equivalent ptr type for this compressed pointer
1798 const TypePtr *get_ptrtype() const {
1799 return _ptrtype;
1800 }
1801
1802 bool is_known_instance() const {
1803 return _ptrtype->is_known_instance();
1804 }
1805
1806 #ifndef PRODUCT
1807 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1808 #endif
1809 };
1810
1811 //------------------------------TypeNarrowOop----------------------------------
1812 // A compressed reference to some kind of Oop. This type wraps around
1813 // a preexisting TypeOopPtr and forwards most of it's operations to
1814 // the underlying type. It's only real purpose is to track the
1815 // oopness of the compressed oop value when we expose the conversion
1816 // between the normal and the compressed form.
1817 class TypeNarrowOop : public TypeNarrowPtr {
1818 protected:
1819 TypeNarrowOop( const TypePtr* ptrtype): TypeNarrowPtr(NarrowOop, ptrtype) {
1820 }
1821
1822 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const {
1823 return t->isa_narrowoop();
1824 }
1825
1826 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const {
1827 return t->is_narrowoop();
1828 }
1829
1830 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const {
1831 return new TypeNarrowOop(t);
1832 }
1833
1834 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const {
1835 return (const TypeNarrowPtr*)((new TypeNarrowOop(t))->hashcons());
1836 }
1837
1838 public:
1839
1840 static const TypeNarrowOop *make( const TypePtr* type);
1841
1842 static const TypeNarrowOop* make_from_constant(ciObject* con, bool require_constant = false) {
1843 return make(TypeOopPtr::make_from_constant(con, require_constant));
1844 }
1845
1846 static const TypeNarrowOop *BOTTOM;
1847 static const TypeNarrowOop *NULL_PTR;
1848
1849 virtual const TypeNarrowOop* remove_speculative() const;
1850 virtual const Type* cleanup_speculative() const;
1851
1852 #ifndef PRODUCT
1853 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1854 #endif
1855 };
1856
1857 //------------------------------TypeNarrowKlass----------------------------------
1858 // A compressed reference to klass pointer. This type wraps around a
1859 // preexisting TypeKlassPtr and forwards most of it's operations to
1860 // the underlying type.
1861 class TypeNarrowKlass : public TypeNarrowPtr {
1862 protected:
1863 TypeNarrowKlass( const TypePtr* ptrtype): TypeNarrowPtr(NarrowKlass, ptrtype) {
1864 }
1865
1866 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const {
1867 return t->isa_narrowklass();
1868 }
1869
1870 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const {
1871 return t->is_narrowklass();
1872 }
1873
1874 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const {
1875 return new TypeNarrowKlass(t);
1876 }
1877
1878 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const {
1879 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons());
1880 }
1881
1882 public:
1883 static const TypeNarrowKlass *make( const TypePtr* type);
1884
1885 // static const TypeNarrowKlass *BOTTOM;
1886 static const TypeNarrowKlass *NULL_PTR;
1887
1888 #ifndef PRODUCT
1889 virtual void dump2( Dict &d, uint depth, outputStream *st ) const;
1890 #endif
1891 };
1892
1893 //------------------------------TypeFunc---------------------------------------
1894 // Class of Array Types
1895 class TypeFunc : public Type {
1896 TypeFunc( const TypeTuple *domain, const TypeTuple *range ) : Type(Function), _domain(domain), _range(range) {}
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 virtual bool empty(void) const; // TRUE if type is vacuous
1901
1902 const TypeTuple* const _domain; // Domain of inputs
1903 const TypeTuple* const _range; // Range of results
1904
1905 public:
1906 // Constants are shared among ADLC and VM
1907 enum { Control = AdlcVMDeps::Control,
1908 I_O = AdlcVMDeps::I_O,
1909 Memory = AdlcVMDeps::Memory,
1910 FramePtr = AdlcVMDeps::FramePtr,
1911 ReturnAdr = AdlcVMDeps::ReturnAdr,
1912 Parms = AdlcVMDeps::Parms
1913 };
1914
1915
1916 // Accessors:
1917 const TypeTuple* domain() const { return _domain; }
1918 const TypeTuple* range() const { return _range; }
1919
1920 static const TypeFunc *make(ciMethod* method);
1921 static const TypeFunc *make(ciSignature signature, const Type* extra);
1922 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range);
1923
1924 virtual const Type *xmeet( const Type *t ) const;
1925 virtual const Type *xdual() const; // Compute dual right now.
1926
1927 BasicType return_type() const;
1928
1929 #ifndef PRODUCT
1930 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping
1931 #endif
1932 // Convenience common pre-built types.
1933 };
1934
1935 //------------------------------accessors--------------------------------------
1936 inline bool Type::is_ptr_to_narrowoop() const {
1937 #ifdef _LP64
1938 return (isa_oopptr() != nullptr && is_oopptr()->is_ptr_to_narrowoop_nv());
1939 #else
1940 return false;
1941 #endif
1942 }
1943
1944 inline bool Type::is_ptr_to_narrowklass() const {
1945 #ifdef _LP64
1946 return (isa_oopptr() != nullptr && is_oopptr()->is_ptr_to_narrowklass_nv());
1947 #else
1948 return false;
1949 #endif
1950 }
1951
1952 inline float Type::getf() const {
1953 assert( _base == FloatCon, "Not a FloatCon" );
1954 return ((TypeF*)this)->_f;
1955 }
1956
1957 inline double Type::getd() const {
1958 assert( _base == DoubleCon, "Not a DoubleCon" );
1959 return ((TypeD*)this)->_d;
1960 }
1961
1962 inline const TypeInteger *Type::is_integer(BasicType bt) const {
1963 assert((bt == T_INT && _base == Int) || (bt == T_LONG && _base == Long), "Not an Int");
1964 return (TypeInteger*)this;
1965 }
1966
1967 inline const TypeInteger *Type::isa_integer(BasicType bt) const {
1968 return (((bt == T_INT && _base == Int) || (bt == T_LONG && _base == Long)) ? (TypeInteger*)this : nullptr);
1969 }
1970
1971 inline const TypeInt *Type::is_int() const {
1972 assert( _base == Int, "Not an Int" );
1973 return (TypeInt*)this;
1974 }
1975
1976 inline const TypeInt *Type::isa_int() const {
1977 return ( _base == Int ? (TypeInt*)this : nullptr);
1978 }
1979
1980 inline const TypeLong *Type::is_long() const {
1981 assert( _base == Long, "Not a Long" );
1982 return (TypeLong*)this;
1983 }
1984
1985 inline const TypeLong *Type::isa_long() const {
1986 return ( _base == Long ? (TypeLong*)this : nullptr);
1987 }
1988
1989 inline const TypeF *Type::isa_float() const {
1990 return ((_base == FloatTop ||
1991 _base == FloatCon ||
1992 _base == FloatBot) ? (TypeF*)this : nullptr);
1993 }
1994
1995 inline const TypeF *Type::is_float_constant() const {
1996 assert( _base == FloatCon, "Not a Float" );
1997 return (TypeF*)this;
1998 }
1999
2000 inline const TypeF *Type::isa_float_constant() const {
2001 return ( _base == FloatCon ? (TypeF*)this : nullptr);
2002 }
2003
2004 inline const TypeD *Type::isa_double() const {
2005 return ((_base == DoubleTop ||
2006 _base == DoubleCon ||
2007 _base == DoubleBot) ? (TypeD*)this : nullptr);
2008 }
2009
2010 inline const TypeD *Type::is_double_constant() const {
2011 assert( _base == DoubleCon, "Not a Double" );
2012 return (TypeD*)this;
2013 }
2014
2015 inline const TypeD *Type::isa_double_constant() const {
2016 return ( _base == DoubleCon ? (TypeD*)this : nullptr);
2017 }
2018
2019 inline const TypeTuple *Type::is_tuple() const {
2020 assert( _base == Tuple, "Not a Tuple" );
2021 return (TypeTuple*)this;
2022 }
2023
2024 inline const TypeAry *Type::is_ary() const {
2025 assert( _base == Array , "Not an Array" );
2026 return (TypeAry*)this;
2027 }
2028
2029 inline const TypeAry *Type::isa_ary() const {
2030 return ((_base == Array) ? (TypeAry*)this : nullptr);
2031 }
2032
2033 inline const TypeVectMask *Type::is_vectmask() const {
2034 assert( _base == VectorMask, "Not a Vector Mask" );
2035 return (TypeVectMask*)this;
2036 }
2037
2038 inline const TypeVectMask *Type::isa_vectmask() const {
2039 return (_base == VectorMask) ? (TypeVectMask*)this : nullptr;
2040 }
2041
2042 inline const TypeVect *Type::is_vect() const {
2043 assert( _base >= VectorMask && _base <= VectorZ, "Not a Vector" );
2044 return (TypeVect*)this;
2045 }
2046
2047 inline const TypeVect *Type::isa_vect() const {
2048 return (_base >= VectorMask && _base <= VectorZ) ? (TypeVect*)this : nullptr;
2049 }
2050
2051 inline const TypePtr *Type::is_ptr() const {
2052 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between.
2053 assert(_base >= AnyPtr && _base <= AryKlassPtr, "Not a pointer");
2054 return (TypePtr*)this;
2055 }
2056
2057 inline const TypePtr *Type::isa_ptr() const {
2058 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between.
2059 return (_base >= AnyPtr && _base <= AryKlassPtr) ? (TypePtr*)this : nullptr;
2060 }
2061
2062 inline const TypeOopPtr *Type::is_oopptr() const {
2063 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2064 assert(_base >= OopPtr && _base <= AryPtr, "Not a Java pointer" ) ;
2065 return (TypeOopPtr*)this;
2066 }
2067
2068 inline const TypeOopPtr *Type::isa_oopptr() const {
2069 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2070 return (_base >= OopPtr && _base <= AryPtr) ? (TypeOopPtr*)this : nullptr;
2071 }
2072
2073 inline const TypeRawPtr *Type::isa_rawptr() const {
2074 return (_base == RawPtr) ? (TypeRawPtr*)this : nullptr;
2075 }
2076
2077 inline const TypeRawPtr *Type::is_rawptr() const {
2078 assert( _base == RawPtr, "Not a raw pointer" );
2079 return (TypeRawPtr*)this;
2080 }
2081
2082 inline const TypeInstPtr *Type::isa_instptr() const {
2083 return (_base == InstPtr) ? (TypeInstPtr*)this : nullptr;
2084 }
2085
2086 inline const TypeInstPtr *Type::is_instptr() const {
2087 assert( _base == InstPtr, "Not an object pointer" );
2088 return (TypeInstPtr*)this;
2089 }
2090
2091 inline const TypeAryPtr *Type::isa_aryptr() const {
2092 return (_base == AryPtr) ? (TypeAryPtr*)this : nullptr;
2093 }
2094
2095 inline const TypeAryPtr *Type::is_aryptr() const {
2096 assert( _base == AryPtr, "Not an array pointer" );
2097 return (TypeAryPtr*)this;
2098 }
2099
2100 inline const TypeNarrowOop *Type::is_narrowoop() const {
2101 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2102 assert(_base == NarrowOop, "Not a narrow oop" ) ;
2103 return (TypeNarrowOop*)this;
2104 }
2105
2106 inline const TypeNarrowOop *Type::isa_narrowoop() const {
2107 // OopPtr is the first and KlassPtr the last, with no non-oops between.
2108 return (_base == NarrowOop) ? (TypeNarrowOop*)this : nullptr;
2109 }
2110
2111 inline const TypeNarrowKlass *Type::is_narrowklass() const {
2112 assert(_base == NarrowKlass, "Not a narrow oop" ) ;
2113 return (TypeNarrowKlass*)this;
2114 }
2115
2116 inline const TypeNarrowKlass *Type::isa_narrowklass() const {
2117 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : nullptr;
2118 }
2119
2120 inline const TypeMetadataPtr *Type::is_metadataptr() const {
2121 // MetadataPtr is the first and CPCachePtr the last
2122 assert(_base == MetadataPtr, "Not a metadata pointer" ) ;
2123 return (TypeMetadataPtr*)this;
2124 }
2125
2126 inline const TypeMetadataPtr *Type::isa_metadataptr() const {
2127 return (_base == MetadataPtr) ? (TypeMetadataPtr*)this : nullptr;
2128 }
2129
2130 inline const TypeKlassPtr *Type::isa_klassptr() const {
2131 return (_base >= KlassPtr && _base <= AryKlassPtr ) ? (TypeKlassPtr*)this : nullptr;
2132 }
2133
2134 inline const TypeKlassPtr *Type::is_klassptr() const {
2135 assert(_base >= KlassPtr && _base <= AryKlassPtr, "Not a klass pointer");
2136 return (TypeKlassPtr*)this;
2137 }
2138
2139 inline const TypeInstKlassPtr *Type::isa_instklassptr() const {
2140 return (_base == InstKlassPtr) ? (TypeInstKlassPtr*)this : nullptr;
2141 }
2142
2143 inline const TypeInstKlassPtr *Type::is_instklassptr() const {
2144 assert(_base == InstKlassPtr, "Not a klass pointer");
2145 return (TypeInstKlassPtr*)this;
2146 }
2147
2148 inline const TypeAryKlassPtr *Type::isa_aryklassptr() const {
2149 return (_base == AryKlassPtr) ? (TypeAryKlassPtr*)this : nullptr;
2150 }
2151
2152 inline const TypeAryKlassPtr *Type::is_aryklassptr() const {
2153 assert(_base == AryKlassPtr, "Not a klass pointer");
2154 return (TypeAryKlassPtr*)this;
2155 }
2156
2157 inline const TypePtr* Type::make_ptr() const {
2158 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() :
2159 ((_base == NarrowKlass) ? is_narrowklass()->get_ptrtype() :
2160 isa_ptr());
2161 }
2162
2163 inline const TypeOopPtr* Type::make_oopptr() const {
2164 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->isa_oopptr() : isa_oopptr();
2165 }
2166
2167 inline const TypeNarrowOop* Type::make_narrowoop() const {
2168 return (_base == NarrowOop) ? is_narrowoop() :
2169 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : nullptr);
2170 }
2171
2172 inline const TypeNarrowKlass* Type::make_narrowklass() const {
2173 return (_base == NarrowKlass) ? is_narrowklass() :
2174 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : nullptr);
2175 }
2176
2177 inline bool Type::is_floatingpoint() const {
2178 if( (_base == FloatCon) || (_base == FloatBot) ||
2179 (_base == DoubleCon) || (_base == DoubleBot) )
2180 return true;
2181 return false;
2182 }
2183
2184 template <>
2185 inline const TypeInt* Type::cast<TypeInt>() const {
2186 return is_int();
2187 }
2188
2189 template <>
2190 inline const TypeLong* Type::cast<TypeLong>() const {
2191 return is_long();
2192 }
2193
2194 // ===============================================================
2195 // Things that need to be 64-bits in the 64-bit build but
2196 // 32-bits in the 32-bit build. Done this way to get full
2197 // optimization AND strong typing.
2198 #ifdef _LP64
2199
2200 // For type queries and asserts
2201 #define is_intptr_t is_long
2202 #define isa_intptr_t isa_long
2203 #define find_intptr_t_type find_long_type
2204 #define find_intptr_t_con find_long_con
2205 #define TypeX TypeLong
2206 #define Type_X Type::Long
2207 #define TypeX_X TypeLong::LONG
2208 #define TypeX_ZERO TypeLong::ZERO
2209 // For 'ideal_reg' machine registers
2210 #define Op_RegX Op_RegL
2211 // For phase->intcon variants
2212 #define MakeConX longcon
2213 #define ConXNode ConLNode
2214 // For array index arithmetic
2215 #define MulXNode MulLNode
2216 #define AndXNode AndLNode
2217 #define OrXNode OrLNode
2218 #define CmpXNode CmpLNode
2219 #define SubXNode SubLNode
2220 #define LShiftXNode LShiftLNode
2221 // For object size computation:
2222 #define AddXNode AddLNode
2223 #define RShiftXNode RShiftLNode
2224 // For card marks and hashcodes
2225 #define URShiftXNode URShiftLNode
2226 // For shenandoahSupport
2227 #define LoadXNode LoadLNode
2228 #define StoreXNode StoreLNode
2229 // Opcodes
2230 #define Op_LShiftX Op_LShiftL
2231 #define Op_AndX Op_AndL
2232 #define Op_AddX Op_AddL
2233 #define Op_SubX Op_SubL
2234 #define Op_XorX Op_XorL
2235 #define Op_URShiftX Op_URShiftL
2236 #define Op_LoadX Op_LoadL
2237 // conversions
2238 #define ConvI2X(x) ConvI2L(x)
2239 #define ConvL2X(x) (x)
2240 #define ConvX2I(x) ConvL2I(x)
2241 #define ConvX2L(x) (x)
2242 #define ConvX2UL(x) (x)
2243
2244 #else
2245
2246 // For type queries and asserts
2247 #define is_intptr_t is_int
2248 #define isa_intptr_t isa_int
2249 #define find_intptr_t_type find_int_type
2250 #define find_intptr_t_con find_int_con
2251 #define TypeX TypeInt
2252 #define Type_X Type::Int
2253 #define TypeX_X TypeInt::INT
2254 #define TypeX_ZERO TypeInt::ZERO
2255 // For 'ideal_reg' machine registers
2256 #define Op_RegX Op_RegI
2257 // For phase->intcon variants
2258 #define MakeConX intcon
2259 #define ConXNode ConINode
2260 // For array index arithmetic
2261 #define MulXNode MulINode
2262 #define AndXNode AndINode
2263 #define OrXNode OrINode
2264 #define CmpXNode CmpINode
2265 #define SubXNode SubINode
2266 #define LShiftXNode LShiftINode
2267 // For object size computation:
2268 #define AddXNode AddINode
2269 #define RShiftXNode RShiftINode
2270 // For card marks and hashcodes
2271 #define URShiftXNode URShiftINode
2272 // For shenandoahSupport
2273 #define LoadXNode LoadINode
2274 #define StoreXNode StoreINode
2275 // Opcodes
2276 #define Op_LShiftX Op_LShiftI
2277 #define Op_AndX Op_AndI
2278 #define Op_AddX Op_AddI
2279 #define Op_SubX Op_SubI
2280 #define Op_XorX Op_XorI
2281 #define Op_URShiftX Op_URShiftI
2282 #define Op_LoadX Op_LoadI
2283 // conversions
2284 #define ConvI2X(x) (x)
2285 #define ConvL2X(x) ConvL2I(x)
2286 #define ConvX2I(x) (x)
2287 #define ConvX2L(x) ConvI2L(x)
2288 #define ConvX2UL(x) ConvI2UL(x)
2289
2290 #endif
2291
2292 #endif // SHARE_OPTO_TYPE_HPP