1 /* 2 * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_OPTO_TYPE_HPP 26 #define SHARE_OPTO_TYPE_HPP 27 28 #include "opto/adlcVMDeps.hpp" 29 #include "runtime/handles.hpp" 30 31 // Portions of code courtesy of Clifford Click 32 33 // Optimization - Graph Style 34 35 36 // This class defines a Type lattice. The lattice is used in the constant 37 // propagation algorithms, and for some type-checking of the iloc code. 38 // Basic types include RSD's (lower bound, upper bound, stride for integers), 39 // float & double precision constants, sets of data-labels and code-labels. 40 // The complete lattice is described below. Subtypes have no relationship to 41 // up or down in the lattice; that is entirely determined by the behavior of 42 // the MEET/JOIN functions. 43 44 class Dict; 45 class Type; 46 class TypeD; 47 class TypeF; 48 class TypeInt; 49 class TypeLong; 50 class TypeNarrowPtr; 51 class TypeNarrowOop; 52 class TypeNarrowKlass; 53 class TypeAry; 54 class TypeTuple; 55 class TypeVect; 56 class TypeVectS; 57 class TypeVectD; 58 class TypeVectX; 59 class TypeVectY; 60 class TypeVectZ; 61 class TypePtr; 62 class TypeRawPtr; 63 class TypeOopPtr; 64 class TypeInstPtr; 65 class TypeAryPtr; 66 class TypeKlassPtr; 67 class TypeMetadataPtr; 68 69 //------------------------------Type------------------------------------------- 70 // Basic Type object, represents a set of primitive Values. 71 // Types are hash-cons'd into a private class dictionary, so only one of each 72 // different kind of Type exists. Types are never modified after creation, so 73 // all their interesting fields are constant. 74 class Type { 75 friend class VMStructs; 76 77 public: 78 enum TYPES { 79 Bad=0, // Type check 80 Control, // Control of code (not in lattice) 81 Top, // Top of the lattice 82 Int, // Integer range (lo-hi) 83 Long, // Long integer range (lo-hi) 84 Half, // Placeholder half of doubleword 85 NarrowOop, // Compressed oop pointer 86 NarrowKlass, // Compressed klass pointer 87 88 Tuple, // Method signature or object layout 89 Array, // Array types 90 VectorS, // 32bit Vector types 91 VectorD, // 64bit Vector types 92 VectorX, // 128bit Vector types 93 VectorY, // 256bit Vector types 94 VectorZ, // 512bit Vector types 95 96 AnyPtr, // Any old raw, klass, inst, or array pointer 97 RawPtr, // Raw (non-oop) pointers 98 OopPtr, // Any and all Java heap entities 99 InstPtr, // Instance pointers (non-array objects) 100 AryPtr, // Array pointers 101 // (Ptr order matters: See is_ptr, isa_ptr, is_oopptr, isa_oopptr.) 102 103 MetadataPtr, // Generic metadata 104 KlassPtr, // Klass pointers 105 106 Function, // Function signature 107 Abio, // Abstract I/O 108 Return_Address, // Subroutine return address 109 Memory, // Abstract store 110 FloatTop, // No float value 111 FloatCon, // Floating point constant 112 FloatBot, // Any float value 113 DoubleTop, // No double value 114 DoubleCon, // Double precision constant 115 DoubleBot, // Any double value 116 Bottom, // Bottom of lattice 117 lastype // Bogus ending type (not in lattice) 118 }; 119 120 // Signal values for offsets from a base pointer 121 enum OFFSET_SIGNALS { 122 OffsetTop = -2000000000, // undefined offset 123 OffsetBot = -2000000001 // any possible offset 124 }; 125 126 // Min and max WIDEN values. 127 enum WIDEN { 128 WidenMin = 0, 129 WidenMax = 3 130 }; 131 132 private: 133 typedef struct { 134 TYPES dual_type; 135 BasicType basic_type; 136 const char* msg; 137 bool isa_oop; 138 uint ideal_reg; 139 relocInfo::relocType reloc; 140 } TypeInfo; 141 142 // Dictionary of types shared among compilations. 143 static Dict* _shared_type_dict; 144 static const TypeInfo _type_info[]; 145 146 static int uhash( const Type *const t ); 147 // Structural equality check. Assumes that cmp() has already compared 148 // the _base types and thus knows it can cast 't' appropriately. 149 virtual bool eq( const Type *t ) const; 150 151 // Top-level hash-table of types 152 static Dict *type_dict() { 153 return Compile::current()->type_dict(); 154 } 155 156 // DUAL operation: reflect around lattice centerline. Used instead of 157 // join to ensure my lattice is symmetric up and down. Dual is computed 158 // lazily, on demand, and cached in _dual. 159 const Type *_dual; // Cached dual value 160 // Table for efficient dualing of base types 161 static const TYPES dual_type[lastype]; 162 163 #ifdef ASSERT 164 // One type is interface, the other is oop 165 virtual bool interface_vs_oop_helper(const Type *t) const; 166 #endif 167 168 const Type *meet_helper(const Type *t, bool include_speculative) const; 169 void check_symmetrical(const Type *t, const Type *mt) const; 170 171 protected: 172 // Each class of type is also identified by its base. 173 const TYPES _base; // Enum of Types type 174 175 Type( TYPES t ) : _dual(NULL), _base(t) {} // Simple types 176 // ~Type(); // Use fast deallocation 177 const Type *hashcons(); // Hash-cons the type 178 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; 179 const Type *join_helper(const Type *t, bool include_speculative) const { 180 return dual()->meet_helper(t->dual(), include_speculative)->dual(); 181 } 182 183 public: 184 185 inline void* operator new( size_t x ) throw() { 186 Compile* compile = Compile::current(); 187 compile->set_type_last_size(x); 188 return compile->type_arena()->Amalloc_D(x); 189 } 190 inline void operator delete( void* ptr ) { 191 Compile* compile = Compile::current(); 192 compile->type_arena()->Afree(ptr,compile->type_last_size()); 193 } 194 195 // Initialize the type system for a particular compilation. 196 static void Initialize(Compile* compile); 197 198 // Initialize the types shared by all compilations. 199 static void Initialize_shared(Compile* compile); 200 201 TYPES base() const { 202 assert(_base > Bad && _base < lastype, "sanity"); 203 return _base; 204 } 205 206 // Create a new hash-consd type 207 static const Type *make(enum TYPES); 208 // Test for equivalence of types 209 static int cmp( const Type *const t1, const Type *const t2 ); 210 // Test for higher or equal in lattice 211 // Variant that drops the speculative part of the types 212 bool higher_equal(const Type *t) const { 213 return !cmp(meet(t),t->remove_speculative()); 214 } 215 // Variant that keeps the speculative part of the types 216 bool higher_equal_speculative(const Type *t) const { 217 return !cmp(meet_speculative(t),t); 218 } 219 220 // MEET operation; lower in lattice. 221 // Variant that drops the speculative part of the types 222 const Type *meet(const Type *t) const { 223 return meet_helper(t, false); 224 } 225 // Variant that keeps the speculative part of the types 226 const Type *meet_speculative(const Type *t) const { 227 return meet_helper(t, true)->cleanup_speculative(); 228 } 229 // WIDEN: 'widens' for Ints and other range types 230 virtual const Type *widen( const Type *old, const Type* limit ) const { return this; } 231 // NARROW: complement for widen, used by pessimistic phases 232 virtual const Type *narrow( const Type *old ) const { return this; } 233 234 // DUAL operation: reflect around lattice centerline. Used instead of 235 // join to ensure my lattice is symmetric up and down. 236 const Type *dual() const { return _dual; } 237 238 // Compute meet dependent on base type 239 virtual const Type *xmeet( const Type *t ) const; 240 virtual const Type *xdual() const; // Compute dual right now. 241 242 // JOIN operation; higher in lattice. Done by finding the dual of the 243 // meet of the dual of the 2 inputs. 244 // Variant that drops the speculative part of the types 245 const Type *join(const Type *t) const { 246 return join_helper(t, false); 247 } 248 // Variant that keeps the speculative part of the types 249 const Type *join_speculative(const Type *t) const { 250 return join_helper(t, true)->cleanup_speculative(); 251 } 252 253 // Modified version of JOIN adapted to the needs Node::Value. 254 // Normalizes all empty values to TOP. Does not kill _widen bits. 255 // Currently, it also works around limitations involving interface types. 256 // Variant that drops the speculative part of the types 257 const Type *filter(const Type *kills) const { 258 return filter_helper(kills, false); 259 } 260 // Variant that keeps the speculative part of the types 261 const Type *filter_speculative(const Type *kills) const { 262 return filter_helper(kills, true)->cleanup_speculative(); 263 } 264 265 #ifdef ASSERT 266 // One type is interface, the other is oop 267 virtual bool interface_vs_oop(const Type *t) const; 268 #endif 269 270 // Returns true if this pointer points at memory which contains a 271 // compressed oop references. 272 bool is_ptr_to_narrowoop() const; 273 bool is_ptr_to_narrowklass() const; 274 275 bool is_ptr_to_boxing_obj() const; 276 277 278 // Convenience access 279 float getf() const; 280 double getd() const; 281 282 const TypeInt *is_int() const; 283 const TypeInt *isa_int() const; // Returns NULL if not an Int 284 const TypeLong *is_long() const; 285 const TypeLong *isa_long() const; // Returns NULL if not a Long 286 const TypeD *isa_double() const; // Returns NULL if not a Double{Top,Con,Bot} 287 const TypeD *is_double_constant() const; // Asserts it is a DoubleCon 288 const TypeD *isa_double_constant() const; // Returns NULL if not a DoubleCon 289 const TypeF *isa_float() const; // Returns NULL if not a Float{Top,Con,Bot} 290 const TypeF *is_float_constant() const; // Asserts it is a FloatCon 291 const TypeF *isa_float_constant() const; // Returns NULL if not a FloatCon 292 const TypeTuple *is_tuple() const; // Collection of fields, NOT a pointer 293 const TypeAry *is_ary() const; // Array, NOT array pointer 294 const TypeAry *isa_ary() const; // Returns NULL of not ary 295 const TypeVect *is_vect() const; // Vector 296 const TypeVect *isa_vect() const; // Returns NULL if not a Vector 297 const TypePtr *is_ptr() const; // Asserts it is a ptr type 298 const TypePtr *isa_ptr() const; // Returns NULL if not ptr type 299 const TypeRawPtr *isa_rawptr() const; // NOT Java oop 300 const TypeRawPtr *is_rawptr() const; // Asserts is rawptr 301 const TypeNarrowOop *is_narrowoop() const; // Java-style GC'd pointer 302 const TypeNarrowOop *isa_narrowoop() const; // Returns NULL if not oop ptr type 303 const TypeNarrowKlass *is_narrowklass() const; // compressed klass pointer 304 const TypeNarrowKlass *isa_narrowklass() const;// Returns NULL if not oop ptr type 305 const TypeOopPtr *isa_oopptr() const; // Returns NULL if not oop ptr type 306 const TypeOopPtr *is_oopptr() const; // Java-style GC'd pointer 307 const TypeInstPtr *isa_instptr() const; // Returns NULL if not InstPtr 308 const TypeInstPtr *is_instptr() const; // Instance 309 const TypeAryPtr *isa_aryptr() const; // Returns NULL if not AryPtr 310 const TypeAryPtr *is_aryptr() const; // Array oop 311 312 const TypeMetadataPtr *isa_metadataptr() const; // Returns NULL if not oop ptr type 313 const TypeMetadataPtr *is_metadataptr() const; // Java-style GC'd pointer 314 const TypeKlassPtr *isa_klassptr() const; // Returns NULL if not KlassPtr 315 const TypeKlassPtr *is_klassptr() const; // assert if not KlassPtr 316 317 virtual bool is_finite() const; // Has a finite value 318 virtual bool is_nan() const; // Is not a number (NaN) 319 320 // Returns this ptr type or the equivalent ptr type for this compressed pointer. 321 const TypePtr* make_ptr() const; 322 323 // Returns this oopptr type or the equivalent oopptr type for this compressed pointer. 324 // Asserts if the underlying type is not an oopptr or narrowoop. 325 const TypeOopPtr* make_oopptr() const; 326 327 // Returns this compressed pointer or the equivalent compressed version 328 // of this pointer type. 329 const TypeNarrowOop* make_narrowoop() const; 330 331 // Returns this compressed klass pointer or the equivalent 332 // compressed version of this pointer type. 333 const TypeNarrowKlass* make_narrowklass() const; 334 335 // Special test for register pressure heuristic 336 bool is_floatingpoint() const; // True if Float or Double base type 337 338 // Do you have memory, directly or through a tuple? 339 bool has_memory( ) const; 340 341 // TRUE if type is a singleton 342 virtual bool singleton(void) const; 343 344 // TRUE if type is above the lattice centerline, and is therefore vacuous 345 virtual bool empty(void) const; 346 347 // Return a hash for this type. The hash function is public so ConNode 348 // (constants) can hash on their constant, which is represented by a Type. 349 virtual int hash() const; 350 351 // Map ideal registers (machine types) to ideal types 352 static const Type *mreg2type[]; 353 354 // Printing, statistics 355 #ifndef PRODUCT 356 void dump_on(outputStream *st) const; 357 void dump() const { 358 dump_on(tty); 359 } 360 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; 361 static void dump_stats(); 362 363 static const char* str(const Type* t); 364 #endif 365 void typerr(const Type *t) const; // Mixing types error 366 367 // Create basic type 368 static const Type* get_const_basic_type(BasicType type) { 369 assert((uint)type <= T_CONFLICT && _const_basic_type[type] != NULL, "bad type"); 370 return _const_basic_type[type]; 371 } 372 373 // For two instance arrays of same dimension, return the base element types. 374 // Otherwise or if the arrays have different dimensions, return NULL. 375 static void get_arrays_base_elements(const Type *a1, const Type *a2, 376 const TypeInstPtr **e1, const TypeInstPtr **e2); 377 378 // Mapping to the array element's basic type. 379 BasicType array_element_basic_type() const; 380 381 // Create standard type for a ciType: 382 static const Type* get_const_type(ciType* type); 383 384 // Create standard zero value: 385 static const Type* get_zero_type(BasicType type) { 386 assert((uint)type <= T_CONFLICT && _zero_type[type] != NULL, "bad type"); 387 return _zero_type[type]; 388 } 389 390 // Report if this is a zero value (not top). 391 bool is_zero_type() const { 392 BasicType type = basic_type(); 393 if (type == T_VOID || type >= T_CONFLICT) 394 return false; 395 else 396 return (this == _zero_type[type]); 397 } 398 399 // Convenience common pre-built types. 400 static const Type *ABIO; 401 static const Type *BOTTOM; 402 static const Type *CONTROL; 403 static const Type *DOUBLE; 404 static const Type *FLOAT; 405 static const Type *HALF; 406 static const Type *MEMORY; 407 static const Type *MULTI; 408 static const Type *RETURN_ADDRESS; 409 static const Type *TOP; 410 411 // Mapping from compiler type to VM BasicType 412 BasicType basic_type() const { return _type_info[_base].basic_type; } 413 uint ideal_reg() const { return _type_info[_base].ideal_reg; } 414 const char* msg() const { return _type_info[_base].msg; } 415 bool isa_oop_ptr() const { return _type_info[_base].isa_oop; } 416 relocInfo::relocType reloc() const { return _type_info[_base].reloc; } 417 418 // Mapping from CI type system to compiler type: 419 static const Type* get_typeflow_type(ciType* type); 420 421 static const Type* make_from_constant(ciConstant constant, 422 bool require_constant = false, 423 int stable_dimension = 0, 424 bool is_narrow = false, 425 bool is_autobox_cache = false); 426 427 static const Type* make_constant_from_field(ciInstance* holder, 428 int off, 429 bool is_unsigned_load, 430 BasicType loadbt); 431 432 static const Type* make_constant_from_field(ciField* field, 433 ciInstance* holder, 434 BasicType loadbt, 435 bool is_unsigned_load); 436 437 static const Type* make_constant_from_array_element(ciArray* array, 438 int off, 439 int stable_dimension, 440 BasicType loadbt, 441 bool is_unsigned_load); 442 443 // Speculative type helper methods. See TypePtr. 444 virtual const TypePtr* speculative() const { return NULL; } 445 virtual ciKlass* speculative_type() const { return NULL; } 446 virtual ciKlass* speculative_type_not_null() const { return NULL; } 447 virtual bool speculative_maybe_null() const { return true; } 448 virtual bool speculative_always_null() const { return true; } 449 virtual const Type* remove_speculative() const { return this; } 450 virtual const Type* cleanup_speculative() const { return this; } 451 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const { return exact_kls != NULL; } 452 virtual bool would_improve_ptr(ProfilePtrKind ptr_kind) const { return ptr_kind == ProfileAlwaysNull || ptr_kind == ProfileNeverNull; } 453 const Type* maybe_remove_speculative(bool include_speculative) const; 454 455 virtual bool maybe_null() const { return true; } 456 virtual bool is_known_instance() const { return false; } 457 458 private: 459 // support arrays 460 static const Type* _zero_type[T_CONFLICT+1]; 461 static const Type* _const_basic_type[T_CONFLICT+1]; 462 }; 463 464 //------------------------------TypeF------------------------------------------ 465 // Class of Float-Constant Types. 466 class TypeF : public Type { 467 TypeF( float f ) : Type(FloatCon), _f(f) {}; 468 public: 469 virtual bool eq( const Type *t ) const; 470 virtual int hash() const; // Type specific hashing 471 virtual bool singleton(void) const; // TRUE if type is a singleton 472 virtual bool empty(void) const; // TRUE if type is vacuous 473 public: 474 const float _f; // Float constant 475 476 static const TypeF *make(float f); 477 478 virtual bool is_finite() const; // Has a finite value 479 virtual bool is_nan() const; // Is not a number (NaN) 480 481 virtual const Type *xmeet( const Type *t ) const; 482 virtual const Type *xdual() const; // Compute dual right now. 483 // Convenience common pre-built types. 484 static const TypeF *MAX; 485 static const TypeF *MIN; 486 static const TypeF *ZERO; // positive zero only 487 static const TypeF *ONE; 488 static const TypeF *POS_INF; 489 static const TypeF *NEG_INF; 490 #ifndef PRODUCT 491 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; 492 #endif 493 }; 494 495 //------------------------------TypeD------------------------------------------ 496 // Class of Double-Constant Types. 497 class TypeD : public Type { 498 TypeD( double d ) : Type(DoubleCon), _d(d) {}; 499 public: 500 virtual bool eq( const Type *t ) const; 501 virtual int hash() const; // Type specific hashing 502 virtual bool singleton(void) const; // TRUE if type is a singleton 503 virtual bool empty(void) const; // TRUE if type is vacuous 504 public: 505 const double _d; // Double constant 506 507 static const TypeD *make(double d); 508 509 virtual bool is_finite() const; // Has a finite value 510 virtual bool is_nan() const; // Is not a number (NaN) 511 512 virtual const Type *xmeet( const Type *t ) const; 513 virtual const Type *xdual() const; // Compute dual right now. 514 // Convenience common pre-built types. 515 static const TypeD *MAX; 516 static const TypeD *MIN; 517 static const TypeD *ZERO; // positive zero only 518 static const TypeD *ONE; 519 static const TypeD *POS_INF; 520 static const TypeD *NEG_INF; 521 #ifndef PRODUCT 522 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; 523 #endif 524 }; 525 526 //------------------------------TypeInt---------------------------------------- 527 // Class of integer ranges, the set of integers between a lower bound and an 528 // upper bound, inclusive. 529 class TypeInt : public Type { 530 TypeInt( jint lo, jint hi, int w ); 531 protected: 532 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; 533 534 public: 535 typedef jint NativeType; 536 virtual bool eq( const Type *t ) const; 537 virtual int hash() const; // Type specific hashing 538 virtual bool singleton(void) const; // TRUE if type is a singleton 539 virtual bool empty(void) const; // TRUE if type is vacuous 540 const jint _lo, _hi; // Lower bound, upper bound 541 const short _widen; // Limit on times we widen this sucker 542 543 static const TypeInt *make(jint lo); 544 // must always specify w 545 static const TypeInt *make(jint lo, jint hi, int w); 546 547 // Check for single integer 548 int is_con() const { return _lo==_hi; } 549 bool is_con(int i) const { return is_con() && _lo == i; } 550 jint get_con() const { assert( is_con(), "" ); return _lo; } 551 552 virtual bool is_finite() const; // Has a finite value 553 554 virtual const Type *xmeet( const Type *t ) const; 555 virtual const Type *xdual() const; // Compute dual right now. 556 virtual const Type *widen( const Type *t, const Type* limit_type ) const; 557 virtual const Type *narrow( const Type *t ) const; 558 // Do not kill _widen bits. 559 // Convenience common pre-built types. 560 static const TypeInt *MAX; 561 static const TypeInt *MIN; 562 static const TypeInt *MINUS_1; 563 static const TypeInt *ZERO; 564 static const TypeInt *ONE; 565 static const TypeInt *BOOL; 566 static const TypeInt *CC; 567 static const TypeInt *CC_LT; // [-1] == MINUS_1 568 static const TypeInt *CC_GT; // [1] == ONE 569 static const TypeInt *CC_EQ; // [0] == ZERO 570 static const TypeInt *CC_LE; // [-1,0] 571 static const TypeInt *CC_GE; // [0,1] == BOOL (!) 572 static const TypeInt *BYTE; 573 static const TypeInt *UBYTE; 574 static const TypeInt *CHAR; 575 static const TypeInt *SHORT; 576 static const TypeInt *POS; 577 static const TypeInt *POS1; 578 static const TypeInt *INT; 579 static const TypeInt *SYMINT; // symmetric range [-max_jint..max_jint] 580 static const TypeInt *TYPE_DOMAIN; // alias for TypeInt::INT 581 582 static const TypeInt *as_self(const Type *t) { return t->is_int(); } 583 #ifndef PRODUCT 584 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; 585 #endif 586 }; 587 588 589 //------------------------------TypeLong--------------------------------------- 590 // Class of long integer ranges, the set of integers between a lower bound and 591 // an upper bound, inclusive. 592 class TypeLong : public Type { 593 TypeLong( jlong lo, jlong hi, int w ); 594 protected: 595 // Do not kill _widen bits. 596 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; 597 public: 598 typedef jlong NativeType; 599 virtual bool eq( const Type *t ) const; 600 virtual int 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 public: 604 const jlong _lo, _hi; // Lower bound, upper bound 605 const short _widen; // Limit on times we widen this sucker 606 607 static const TypeLong *make(jlong lo); 608 // must always specify w 609 static const TypeLong *make(jlong lo, jlong hi, int w); 610 611 // Check for single integer 612 int is_con() const { return _lo==_hi; } 613 bool is_con(int i) const { return is_con() && _lo == i; } 614 jlong get_con() const { assert( is_con(), "" ); return _lo; } 615 616 // Check for positive 32-bit value. 617 int is_positive_int() const { return _lo >= 0 && _hi <= (jlong)max_jint; } 618 619 virtual bool is_finite() const; // Has a finite value 620 621 622 virtual const Type *xmeet( const Type *t ) const; 623 virtual const Type *xdual() const; // Compute dual right now. 624 virtual const Type *widen( const Type *t, const Type* limit_type ) const; 625 virtual const Type *narrow( const Type *t ) const; 626 // Convenience common pre-built types. 627 static const TypeLong *MAX; 628 static const TypeLong *MIN; 629 static const TypeLong *MINUS_1; 630 static const TypeLong *ZERO; 631 static const TypeLong *ONE; 632 static const TypeLong *POS; 633 static const TypeLong *LONG; 634 static const TypeLong *INT; // 32-bit subrange [min_jint..max_jint] 635 static const TypeLong *UINT; // 32-bit unsigned [0..max_juint] 636 static const TypeLong *TYPE_DOMAIN; // alias for TypeLong::LONG 637 638 // static convenience methods. 639 static const TypeLong *as_self(const Type *t) { return t->is_long(); } 640 641 #ifndef PRODUCT 642 virtual void dump2( Dict &d, uint, outputStream *st ) const;// Specialized per-Type dumping 643 #endif 644 }; 645 646 //------------------------------TypeTuple-------------------------------------- 647 // Class of Tuple Types, essentially type collections for function signatures 648 // and class layouts. It happens to also be a fast cache for the HotSpot 649 // signature types. 650 class TypeTuple : public Type { 651 TypeTuple( uint cnt, const Type **fields ) : Type(Tuple), _cnt(cnt), _fields(fields) { } 652 653 const uint _cnt; // Count of fields 654 const Type ** const _fields; // Array of field types 655 656 public: 657 virtual bool eq( const Type *t ) const; 658 virtual int hash() const; // Type specific hashing 659 virtual bool singleton(void) const; // TRUE if type is a singleton 660 virtual bool empty(void) const; // TRUE if type is vacuous 661 662 // Accessors: 663 uint cnt() const { return _cnt; } 664 const Type* field_at(uint i) const { 665 assert(i < _cnt, "oob"); 666 return _fields[i]; 667 } 668 void set_field_at(uint i, const Type* t) { 669 assert(i < _cnt, "oob"); 670 _fields[i] = t; 671 } 672 673 static const TypeTuple *make( uint cnt, const Type **fields ); 674 static const TypeTuple *make_range(ciSignature *sig); 675 static const TypeTuple *make_domain(ciInstanceKlass* recv, ciSignature *sig); 676 677 // Subroutine call type with space allocated for argument types 678 // Memory for Control, I_O, Memory, FramePtr, and ReturnAdr is allocated implicitly 679 static const Type **fields( uint arg_cnt ); 680 681 virtual const Type *xmeet( const Type *t ) const; 682 virtual const Type *xdual() const; // Compute dual right now. 683 // Convenience common pre-built types. 684 static const TypeTuple *IFBOTH; 685 static const TypeTuple *IFFALSE; 686 static const TypeTuple *IFTRUE; 687 static const TypeTuple *IFNEITHER; 688 static const TypeTuple *LOOPBODY; 689 static const TypeTuple *MEMBAR; 690 static const TypeTuple *STORECONDITIONAL; 691 static const TypeTuple *START_I2C; 692 static const TypeTuple *INT_PAIR; 693 static const TypeTuple *LONG_PAIR; 694 static const TypeTuple *INT_CC_PAIR; 695 static const TypeTuple *LONG_CC_PAIR; 696 #ifndef PRODUCT 697 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping 698 #endif 699 }; 700 701 //------------------------------TypeAry---------------------------------------- 702 // Class of Array Types 703 class TypeAry : public Type { 704 TypeAry(const Type* elem, const TypeInt* size, bool stable) : Type(Array), 705 _elem(elem), _size(size), _stable(stable) {} 706 public: 707 virtual bool eq( const Type *t ) const; 708 virtual int hash() const; // Type specific hashing 709 virtual bool singleton(void) const; // TRUE if type is a singleton 710 virtual bool empty(void) const; // TRUE if type is vacuous 711 712 private: 713 const Type *_elem; // Element type of array 714 const TypeInt *_size; // Elements in array 715 const bool _stable; // Are elements @Stable? 716 friend class TypeAryPtr; 717 718 public: 719 static const TypeAry* make(const Type* elem, const TypeInt* size, bool stable = false); 720 721 virtual const Type *xmeet( const Type *t ) const; 722 virtual const Type *xdual() const; // Compute dual right now. 723 bool ary_must_be_exact() const; // true if arrays of such are never generic 724 virtual const Type* remove_speculative() const; 725 virtual const Type* cleanup_speculative() const; 726 #ifdef ASSERT 727 // One type is interface, the other is oop 728 virtual bool interface_vs_oop(const Type *t) const; 729 #endif 730 #ifndef PRODUCT 731 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping 732 #endif 733 }; 734 735 //------------------------------TypeVect--------------------------------------- 736 // Class of Vector Types 737 class TypeVect : public Type { 738 const Type* _elem; // Vector's element type 739 const uint _length; // Elements in vector (power of 2) 740 741 protected: 742 TypeVect(TYPES t, const Type* elem, uint length) : Type(t), 743 _elem(elem), _length(length) {} 744 745 public: 746 const Type* element_type() const { return _elem; } 747 BasicType element_basic_type() const { return _elem->array_element_basic_type(); } 748 uint length() const { return _length; } 749 uint length_in_bytes() const { 750 return _length * type2aelembytes(element_basic_type()); 751 } 752 753 virtual bool eq(const Type *t) const; 754 virtual int hash() const; // Type specific hashing 755 virtual bool singleton(void) const; // TRUE if type is a singleton 756 virtual bool empty(void) const; // TRUE if type is vacuous 757 758 static const TypeVect *make(const BasicType elem_bt, uint length) { 759 // Use bottom primitive type. 760 return make(get_const_basic_type(elem_bt), length); 761 } 762 // Used directly by Replicate nodes to construct singleton vector. 763 static const TypeVect *make(const Type* elem, uint length); 764 765 virtual const Type *xmeet( const Type *t) const; 766 virtual const Type *xdual() const; // Compute dual right now. 767 768 static const TypeVect *VECTS; 769 static const TypeVect *VECTD; 770 static const TypeVect *VECTX; 771 static const TypeVect *VECTY; 772 static const TypeVect *VECTZ; 773 774 #ifndef PRODUCT 775 virtual void dump2(Dict &d, uint, outputStream *st) const; // Specialized per-Type dumping 776 #endif 777 }; 778 779 class TypeVectS : public TypeVect { 780 friend class TypeVect; 781 TypeVectS(const Type* elem, uint length) : TypeVect(VectorS, elem, length) {} 782 }; 783 784 class TypeVectD : public TypeVect { 785 friend class TypeVect; 786 TypeVectD(const Type* elem, uint length) : TypeVect(VectorD, elem, length) {} 787 }; 788 789 class TypeVectX : public TypeVect { 790 friend class TypeVect; 791 TypeVectX(const Type* elem, uint length) : TypeVect(VectorX, elem, length) {} 792 }; 793 794 class TypeVectY : public TypeVect { 795 friend class TypeVect; 796 TypeVectY(const Type* elem, uint length) : TypeVect(VectorY, elem, length) {} 797 }; 798 799 class TypeVectZ : public TypeVect { 800 friend class TypeVect; 801 TypeVectZ(const Type* elem, uint length) : TypeVect(VectorZ, elem, length) {} 802 }; 803 804 //------------------------------TypePtr---------------------------------------- 805 // Class of machine Pointer Types: raw data, instances or arrays. 806 // If the _base enum is AnyPtr, then this refers to all of the above. 807 // Otherwise the _base will indicate which subset of pointers is affected, 808 // and the class will be inherited from. 809 class TypePtr : public Type { 810 friend class TypeNarrowPtr; 811 public: 812 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR }; 813 protected: 814 TypePtr(TYPES t, PTR ptr, int offset, 815 const TypePtr* speculative = NULL, 816 int inline_depth = InlineDepthBottom) : 817 Type(t), _speculative(speculative), _inline_depth(inline_depth), _offset(offset), 818 _ptr(ptr) {} 819 static const PTR ptr_meet[lastPTR][lastPTR]; 820 static const PTR ptr_dual[lastPTR]; 821 static const char * const ptr_msg[lastPTR]; 822 823 enum { 824 InlineDepthBottom = INT_MAX, 825 InlineDepthTop = -InlineDepthBottom 826 }; 827 828 // Extra type information profiling gave us. We propagate it the 829 // same way the rest of the type info is propagated. If we want to 830 // use it, then we have to emit a guard: this part of the type is 831 // not something we know but something we speculate about the type. 832 const TypePtr* _speculative; 833 // For speculative types, we record at what inlining depth the 834 // profiling point that provided the data is. We want to favor 835 // profile data coming from outer scopes which are likely better for 836 // the current compilation. 837 int _inline_depth; 838 839 // utility methods to work on the speculative part of the type 840 const TypePtr* dual_speculative() const; 841 const TypePtr* xmeet_speculative(const TypePtr* other) const; 842 bool eq_speculative(const TypePtr* other) const; 843 int hash_speculative() const; 844 const TypePtr* add_offset_speculative(intptr_t offset) const; 845 #ifndef PRODUCT 846 void dump_speculative(outputStream *st) const; 847 #endif 848 849 // utility methods to work on the inline depth of the type 850 int dual_inline_depth() const; 851 int meet_inline_depth(int depth) const; 852 #ifndef PRODUCT 853 void dump_inline_depth(outputStream *st) const; 854 #endif 855 856 public: 857 const int _offset; // Offset into oop, with TOP & BOT 858 const PTR _ptr; // Pointer equivalence class 859 860 const int offset() const { return _offset; } 861 const PTR ptr() const { return _ptr; } 862 863 static const TypePtr *make(TYPES t, PTR ptr, int offset, 864 const TypePtr* speculative = NULL, 865 int inline_depth = InlineDepthBottom); 866 867 // Return a 'ptr' version of this type 868 virtual const Type *cast_to_ptr_type(PTR ptr) const; 869 870 virtual intptr_t get_con() const; 871 872 int xadd_offset( intptr_t offset ) const; 873 virtual const TypePtr *add_offset( intptr_t offset ) const; 874 virtual bool eq(const Type *t) const; 875 virtual int hash() const; // Type specific hashing 876 877 virtual bool singleton(void) const; // TRUE if type is a singleton 878 virtual bool empty(void) const; // TRUE if type is vacuous 879 virtual const Type *xmeet( const Type *t ) const; 880 virtual const Type *xmeet_helper( const Type *t ) const; 881 int meet_offset( int offset ) const; 882 int dual_offset( ) const; 883 virtual const Type *xdual() const; // Compute dual right now. 884 885 // meet, dual and join over pointer equivalence sets 886 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; } 887 PTR dual_ptr() const { return ptr_dual[ptr()]; } 888 889 // This is textually confusing unless one recalls that 890 // join(t) == dual()->meet(t->dual())->dual(). 891 PTR join_ptr( const PTR in_ptr ) const { 892 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ]; 893 } 894 895 // Speculative type helper methods. 896 virtual const TypePtr* speculative() const { return _speculative; } 897 int inline_depth() const { return _inline_depth; } 898 virtual ciKlass* speculative_type() const; 899 virtual ciKlass* speculative_type_not_null() const; 900 virtual bool speculative_maybe_null() const; 901 virtual bool speculative_always_null() const; 902 virtual const Type* remove_speculative() const; 903 virtual const Type* cleanup_speculative() const; 904 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const; 905 virtual bool would_improve_ptr(ProfilePtrKind maybe_null) const; 906 virtual const TypePtr* with_inline_depth(int depth) const; 907 908 virtual bool maybe_null() const { return meet_ptr(Null) == ptr(); } 909 910 // Tests for relation to centerline of type lattice: 911 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); } 912 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); } 913 // Convenience common pre-built types. 914 static const TypePtr *NULL_PTR; 915 static const TypePtr *NOTNULL; 916 static const TypePtr *BOTTOM; 917 #ifndef PRODUCT 918 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; 919 #endif 920 }; 921 922 //------------------------------TypeRawPtr------------------------------------- 923 // Class of raw pointers, pointers to things other than Oops. Examples 924 // include the stack pointer, top of heap, card-marking area, handles, etc. 925 class TypeRawPtr : public TypePtr { 926 protected: 927 TypeRawPtr( PTR ptr, address bits ) : TypePtr(RawPtr,ptr,0), _bits(bits){} 928 public: 929 virtual bool eq( const Type *t ) const; 930 virtual int hash() const; // Type specific hashing 931 932 const address _bits; // Constant value, if applicable 933 934 static const TypeRawPtr *make( PTR ptr ); 935 static const TypeRawPtr *make( address bits ); 936 937 // Return a 'ptr' version of this type 938 virtual const Type *cast_to_ptr_type(PTR ptr) const; 939 940 virtual intptr_t get_con() const; 941 942 virtual const TypePtr *add_offset( intptr_t offset ) const; 943 944 virtual const Type *xmeet( const Type *t ) const; 945 virtual const Type *xdual() const; // Compute dual right now. 946 // Convenience common pre-built types. 947 static const TypeRawPtr *BOTTOM; 948 static const TypeRawPtr *NOTNULL; 949 #ifndef PRODUCT 950 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; 951 #endif 952 }; 953 954 //------------------------------TypeOopPtr------------------------------------- 955 // Some kind of oop (Java pointer), either instance or array. 956 class TypeOopPtr : public TypePtr { 957 protected: 958 TypeOopPtr(TYPES t, PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id, 959 const TypePtr* speculative, int inline_depth); 960 public: 961 virtual bool eq( const Type *t ) const; 962 virtual int hash() const; // Type specific hashing 963 virtual bool singleton(void) const; // TRUE if type is a singleton 964 enum { 965 InstanceTop = -1, // undefined instance 966 InstanceBot = 0 // any possible instance 967 }; 968 protected: 969 970 // Oop is NULL, unless this is a constant oop. 971 ciObject* _const_oop; // Constant oop 972 // If _klass is NULL, then so is _sig. This is an unloaded klass. 973 ciKlass* _klass; // Klass object 974 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) 975 bool _klass_is_exact; 976 bool _is_ptr_to_narrowoop; 977 bool _is_ptr_to_narrowklass; 978 bool _is_ptr_to_boxed_value; 979 980 // If not InstanceTop or InstanceBot, indicates that this is 981 // a particular instance of this type which is distinct. 982 // This is the node index of the allocation node creating this instance. 983 int _instance_id; 984 985 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); 986 987 int dual_instance_id() const; 988 int meet_instance_id(int uid) const; 989 990 // Do not allow interface-vs.-noninterface joins to collapse to top. 991 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; 992 993 public: 994 // Creates a type given a klass. Correctly handles multi-dimensional arrays 995 // Respects UseUniqueSubclasses. 996 // If the klass is final, the resulting type will be exact. 997 static const TypeOopPtr* make_from_klass(ciKlass* klass) { 998 return make_from_klass_common(klass, true, false); 999 } 1000 // Same as before, but will produce an exact type, even if 1001 // the klass is not final, as long as it has exactly one implementation. 1002 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass) { 1003 return make_from_klass_common(klass, true, true); 1004 } 1005 // Same as before, but does not respects UseUniqueSubclasses. 1006 // Use this only for creating array element types. 1007 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass) { 1008 return make_from_klass_common(klass, false, false); 1009 } 1010 // Creates a singleton type given an object. 1011 // If the object cannot be rendered as a constant, 1012 // may return a non-singleton type. 1013 // If require_constant, produce a NULL if a singleton is not possible. 1014 static const TypeOopPtr* make_from_constant(ciObject* o, 1015 bool require_constant = false); 1016 1017 // Make a generic (unclassed) pointer to an oop. 1018 static const TypeOopPtr* make(PTR ptr, int offset, int instance_id, 1019 const TypePtr* speculative = NULL, 1020 int inline_depth = InlineDepthBottom); 1021 1022 ciObject* const_oop() const { return _const_oop; } 1023 virtual ciKlass* klass() const { return _klass; } 1024 bool klass_is_exact() const { return _klass_is_exact; } 1025 1026 // Returns true if this pointer points at memory which contains a 1027 // compressed oop references. 1028 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; } 1029 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; } 1030 bool is_ptr_to_boxed_value() const { return _is_ptr_to_boxed_value; } 1031 bool is_known_instance() const { return _instance_id > 0; } 1032 int instance_id() const { return _instance_id; } 1033 bool is_known_instance_field() const { return is_known_instance() && _offset >= 0; } 1034 1035 virtual intptr_t get_con() const; 1036 1037 virtual const Type *cast_to_ptr_type(PTR ptr) const; 1038 1039 virtual const Type *cast_to_exactness(bool klass_is_exact) const; 1040 1041 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; 1042 1043 // corresponding pointer to klass, for a given instance 1044 const TypeKlassPtr* as_klass_type() const; 1045 1046 virtual const TypePtr *add_offset( intptr_t offset ) const; 1047 1048 // Speculative type helper methods. 1049 virtual const Type* remove_speculative() const; 1050 virtual const Type* cleanup_speculative() const; 1051 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const; 1052 virtual const TypePtr* with_inline_depth(int depth) const; 1053 1054 virtual const TypePtr* with_instance_id(int instance_id) const; 1055 1056 virtual const Type *xdual() const; // Compute dual right now. 1057 // the core of the computation of the meet for TypeOopPtr and for its subclasses 1058 virtual const Type *xmeet_helper(const Type *t) const; 1059 1060 // Convenience common pre-built type. 1061 static const TypeOopPtr *BOTTOM; 1062 #ifndef PRODUCT 1063 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; 1064 #endif 1065 }; 1066 1067 //------------------------------TypeInstPtr------------------------------------ 1068 // Class of Java object pointers, pointing either to non-array Java instances 1069 // or to a Klass* (including array klasses). 1070 class TypeInstPtr : public TypeOopPtr { 1071 TypeInstPtr(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id, 1072 const TypePtr* speculative, int inline_depth); 1073 virtual bool eq( const Type *t ) const; 1074 virtual int hash() const; // Type specific hashing 1075 1076 ciSymbol* _name; // class name 1077 1078 public: 1079 ciSymbol* name() const { return _name; } 1080 1081 bool is_loaded() const { return _klass->is_loaded(); } 1082 1083 // Make a pointer to a constant oop. 1084 static const TypeInstPtr *make(ciObject* o) { 1085 return make(TypePtr::Constant, o->klass(), true, o, 0, InstanceBot); 1086 } 1087 // Make a pointer to a constant oop with offset. 1088 static const TypeInstPtr *make(ciObject* o, int offset) { 1089 return make(TypePtr::Constant, o->klass(), true, o, offset, InstanceBot); 1090 } 1091 1092 // Make a pointer to some value of type klass. 1093 static const TypeInstPtr *make(PTR ptr, ciKlass* klass) { 1094 return make(ptr, klass, false, NULL, 0, InstanceBot); 1095 } 1096 1097 // Make a pointer to some non-polymorphic value of exactly type klass. 1098 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) { 1099 return make(ptr, klass, true, NULL, 0, InstanceBot); 1100 } 1101 1102 // Make a pointer to some value of type klass with offset. 1103 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, int offset) { 1104 return make(ptr, klass, false, NULL, offset, InstanceBot); 1105 } 1106 1107 // Make a pointer to an oop. 1108 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, 1109 int instance_id = InstanceBot, 1110 const TypePtr* speculative = NULL, 1111 int inline_depth = InlineDepthBottom); 1112 1113 /** Create constant type for a constant boxed value */ 1114 const Type* get_const_boxed_value() const; 1115 1116 // If this is a java.lang.Class constant, return the type for it or NULL. 1117 // Pass to Type::get_const_type to turn it to a type, which will usually 1118 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc. 1119 ciType* java_mirror_type() const; 1120 1121 virtual const Type *cast_to_ptr_type(PTR ptr) const; 1122 1123 virtual const Type *cast_to_exactness(bool klass_is_exact) const; 1124 1125 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; 1126 1127 virtual const TypePtr *add_offset( intptr_t offset ) const; 1128 1129 // Speculative type helper methods. 1130 virtual const Type* remove_speculative() const; 1131 virtual const TypePtr* with_inline_depth(int depth) const; 1132 virtual const TypePtr* with_instance_id(int instance_id) const; 1133 1134 // the core of the computation of the meet of 2 types 1135 virtual const Type *xmeet_helper(const Type *t) const; 1136 virtual const TypeInstPtr *xmeet_unloaded( const TypeInstPtr *t ) const; 1137 virtual const Type *xdual() const; // Compute dual right now. 1138 1139 // Convenience common pre-built types. 1140 static const TypeInstPtr *NOTNULL; 1141 static const TypeInstPtr *BOTTOM; 1142 static const TypeInstPtr *MIRROR; 1143 static const TypeInstPtr *MARK; 1144 static const TypeInstPtr *KLASS; 1145 #ifndef PRODUCT 1146 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping 1147 #endif 1148 }; 1149 1150 //------------------------------TypeAryPtr------------------------------------- 1151 // Class of Java array pointers 1152 class TypeAryPtr : public TypeOopPtr { 1153 TypeAryPtr( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, 1154 int offset, int instance_id, bool is_autobox_cache, 1155 const TypePtr* speculative, int inline_depth) 1156 : TypeOopPtr(AryPtr,ptr,k,xk,o,offset, instance_id, speculative, inline_depth), 1157 _ary(ary), 1158 _is_autobox_cache(is_autobox_cache) 1159 { 1160 #ifdef ASSERT 1161 if (k != NULL) { 1162 // Verify that specified klass and TypeAryPtr::klass() follow the same rules. 1163 ciKlass* ck = compute_klass(true); 1164 if (k != ck) { 1165 this->dump(); tty->cr(); 1166 tty->print(" k: "); 1167 k->print(); tty->cr(); 1168 tty->print("ck: "); 1169 if (ck != NULL) ck->print(); 1170 else tty->print("<NULL>"); 1171 tty->cr(); 1172 assert(false, "unexpected TypeAryPtr::_klass"); 1173 } 1174 } 1175 #endif 1176 } 1177 virtual bool eq( const Type *t ) const; 1178 virtual int hash() const; // Type specific hashing 1179 const TypeAry *_ary; // Array we point into 1180 const bool _is_autobox_cache; 1181 1182 ciKlass* compute_klass(DEBUG_ONLY(bool verify = false)) const; 1183 1184 public: 1185 // Accessors 1186 ciKlass* klass() const; 1187 const TypeAry* ary() const { return _ary; } 1188 const Type* elem() const { return _ary->_elem; } 1189 const TypeInt* size() const { return _ary->_size; } 1190 bool is_stable() const { return _ary->_stable; } 1191 1192 bool is_autobox_cache() const { return _is_autobox_cache; } 1193 1194 static const TypeAryPtr *make(PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset, 1195 int instance_id = InstanceBot, 1196 const TypePtr* speculative = NULL, 1197 int inline_depth = InlineDepthBottom); 1198 // Constant pointer to array 1199 static const TypeAryPtr *make(PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, int offset, 1200 int instance_id = InstanceBot, 1201 const TypePtr* speculative = NULL, 1202 int inline_depth = InlineDepthBottom, bool is_autobox_cache = false); 1203 1204 // Return a 'ptr' version of this type 1205 virtual const Type *cast_to_ptr_type(PTR ptr) const; 1206 1207 virtual const Type *cast_to_exactness(bool klass_is_exact) const; 1208 1209 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; 1210 1211 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const; 1212 virtual const TypeInt* narrow_size_type(const TypeInt* size) const; 1213 1214 virtual bool empty(void) const; // TRUE if type is vacuous 1215 virtual const TypePtr *add_offset( intptr_t offset ) const; 1216 1217 // Speculative type helper methods. 1218 virtual const Type* remove_speculative() const; 1219 virtual const TypePtr* with_inline_depth(int depth) const; 1220 virtual const TypePtr* with_instance_id(int instance_id) const; 1221 1222 // the core of the computation of the meet of 2 types 1223 virtual const Type *xmeet_helper(const Type *t) const; 1224 virtual const Type *xdual() const; // Compute dual right now. 1225 1226 const TypeAryPtr* cast_to_stable(bool stable, int stable_dimension = 1) const; 1227 int stable_dimension() const; 1228 1229 const TypeAryPtr* cast_to_autobox_cache(bool cache) const; 1230 1231 static jint max_array_length(BasicType etype) ; 1232 1233 // Convenience common pre-built types. 1234 static const TypeAryPtr *RANGE; 1235 static const TypeAryPtr *OOPS; 1236 static const TypeAryPtr *NARROWOOPS; 1237 static const TypeAryPtr *BYTES; 1238 static const TypeAryPtr *SHORTS; 1239 static const TypeAryPtr *CHARS; 1240 static const TypeAryPtr *INTS; 1241 static const TypeAryPtr *LONGS; 1242 static const TypeAryPtr *FLOATS; 1243 static const TypeAryPtr *DOUBLES; 1244 // selects one of the above: 1245 static const TypeAryPtr *get_array_body_type(BasicType elem) { 1246 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != NULL, "bad elem type"); 1247 return _array_body_type[elem]; 1248 } 1249 static const TypeAryPtr *_array_body_type[T_CONFLICT+1]; 1250 // sharpen the type of an int which is used as an array size 1251 #ifdef ASSERT 1252 // One type is interface, the other is oop 1253 virtual bool interface_vs_oop(const Type *t) const; 1254 #endif 1255 #ifndef PRODUCT 1256 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping 1257 #endif 1258 }; 1259 1260 //------------------------------TypeMetadataPtr------------------------------------- 1261 // Some kind of metadata, either Method*, MethodData* or CPCacheOop 1262 class TypeMetadataPtr : public TypePtr { 1263 protected: 1264 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, int offset); 1265 // Do not allow interface-vs.-noninterface joins to collapse to top. 1266 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; 1267 public: 1268 virtual bool eq( const Type *t ) const; 1269 virtual int hash() const; // Type specific hashing 1270 virtual bool singleton(void) const; // TRUE if type is a singleton 1271 1272 private: 1273 ciMetadata* _metadata; 1274 1275 public: 1276 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, int offset); 1277 1278 static const TypeMetadataPtr* make(ciMethod* m); 1279 static const TypeMetadataPtr* make(ciMethodData* m); 1280 1281 ciMetadata* metadata() const { return _metadata; } 1282 1283 virtual const Type *cast_to_ptr_type(PTR ptr) const; 1284 1285 virtual const TypePtr *add_offset( intptr_t offset ) const; 1286 1287 virtual const Type *xmeet( const Type *t ) const; 1288 virtual const Type *xdual() const; // Compute dual right now. 1289 1290 virtual intptr_t get_con() const; 1291 1292 // Convenience common pre-built types. 1293 static const TypeMetadataPtr *BOTTOM; 1294 1295 #ifndef PRODUCT 1296 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; 1297 #endif 1298 }; 1299 1300 //------------------------------TypeKlassPtr----------------------------------- 1301 // Class of Java Klass pointers 1302 class TypeKlassPtr : public TypePtr { 1303 TypeKlassPtr( PTR ptr, ciKlass* klass, int offset ); 1304 1305 protected: 1306 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; 1307 public: 1308 virtual bool eq( const Type *t ) const; 1309 virtual int hash() const; // Type specific hashing 1310 virtual bool singleton(void) const; // TRUE if type is a singleton 1311 private: 1312 1313 static const TypeKlassPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); 1314 1315 ciKlass* _klass; 1316 1317 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) 1318 bool _klass_is_exact; 1319 1320 public: 1321 ciSymbol* name() const { return klass()->name(); } 1322 1323 ciKlass* klass() const { return _klass; } 1324 bool klass_is_exact() const { return _klass_is_exact; } 1325 1326 bool is_loaded() const { return klass()->is_loaded(); } 1327 1328 // Creates a type given a klass. Correctly handles multi-dimensional arrays 1329 // Respects UseUniqueSubclasses. 1330 // If the klass is final, the resulting type will be exact. 1331 static const TypeKlassPtr* make_from_klass(ciKlass* klass) { 1332 return make_from_klass_common(klass, true, false); 1333 } 1334 // Same as before, but will produce an exact type, even if 1335 // the klass is not final, as long as it has exactly one implementation. 1336 static const TypeKlassPtr* make_from_klass_unique(ciKlass* klass) { 1337 return make_from_klass_common(klass, true, true); 1338 } 1339 // Same as before, but does not respects UseUniqueSubclasses. 1340 // Use this only for creating array element types. 1341 static const TypeKlassPtr* make_from_klass_raw(ciKlass* klass) { 1342 return make_from_klass_common(klass, false, false); 1343 } 1344 1345 // Make a generic (unclassed) pointer to metadata. 1346 static const TypeKlassPtr* make(PTR ptr, int offset); 1347 1348 // ptr to klass 'k' 1349 static const TypeKlassPtr *make( ciKlass* k ) { return make( TypePtr::Constant, k, 0); } 1350 // ptr to klass 'k' with offset 1351 static const TypeKlassPtr *make( ciKlass* k, int offset ) { return make( TypePtr::Constant, k, offset); } 1352 // ptr to klass 'k' or sub-klass 1353 static const TypeKlassPtr *make( PTR ptr, ciKlass* k, int offset); 1354 1355 virtual const Type *cast_to_ptr_type(PTR ptr) const; 1356 1357 virtual const Type *cast_to_exactness(bool klass_is_exact) const; 1358 1359 // corresponding pointer to instance, for a given class 1360 const TypeOopPtr* as_instance_type() const; 1361 1362 virtual const TypePtr *add_offset( intptr_t offset ) const; 1363 virtual const Type *xmeet( const Type *t ) const; 1364 virtual const Type *xdual() const; // Compute dual right now. 1365 1366 virtual intptr_t get_con() const; 1367 1368 // Convenience common pre-built types. 1369 static const TypeKlassPtr* OBJECT; // Not-null object klass or below 1370 static const TypeKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same 1371 #ifndef PRODUCT 1372 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping 1373 #endif 1374 }; 1375 1376 class TypeNarrowPtr : public Type { 1377 protected: 1378 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR 1379 1380 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): Type(t), 1381 _ptrtype(ptrtype) { 1382 assert(ptrtype->offset() == 0 || 1383 ptrtype->offset() == OffsetBot || 1384 ptrtype->offset() == OffsetTop, "no real offsets"); 1385 } 1386 1387 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0; 1388 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0; 1389 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0; 1390 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0; 1391 // Do not allow interface-vs.-noninterface joins to collapse to top. 1392 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; 1393 public: 1394 virtual bool eq( const Type *t ) const; 1395 virtual int hash() const; // Type specific hashing 1396 virtual bool singleton(void) const; // TRUE if type is a singleton 1397 1398 virtual const Type *xmeet( const Type *t ) const; 1399 virtual const Type *xdual() const; // Compute dual right now. 1400 1401 virtual intptr_t get_con() const; 1402 1403 virtual bool empty(void) const; // TRUE if type is vacuous 1404 1405 // returns the equivalent ptr type for this compressed pointer 1406 const TypePtr *get_ptrtype() const { 1407 return _ptrtype; 1408 } 1409 1410 bool is_known_instance() const { 1411 return _ptrtype->is_known_instance(); 1412 } 1413 1414 #ifndef PRODUCT 1415 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; 1416 #endif 1417 }; 1418 1419 //------------------------------TypeNarrowOop---------------------------------- 1420 // A compressed reference to some kind of Oop. This type wraps around 1421 // a preexisting TypeOopPtr and forwards most of it's operations to 1422 // the underlying type. It's only real purpose is to track the 1423 // oopness of the compressed oop value when we expose the conversion 1424 // between the normal and the compressed form. 1425 class TypeNarrowOop : public TypeNarrowPtr { 1426 protected: 1427 TypeNarrowOop( const TypePtr* ptrtype): TypeNarrowPtr(NarrowOop, ptrtype) { 1428 } 1429 1430 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { 1431 return t->isa_narrowoop(); 1432 } 1433 1434 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { 1435 return t->is_narrowoop(); 1436 } 1437 1438 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { 1439 return new TypeNarrowOop(t); 1440 } 1441 1442 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { 1443 return (const TypeNarrowPtr*)((new TypeNarrowOop(t))->hashcons()); 1444 } 1445 1446 public: 1447 1448 static const TypeNarrowOop *make( const TypePtr* type); 1449 1450 static const TypeNarrowOop* make_from_constant(ciObject* con, bool require_constant = false) { 1451 return make(TypeOopPtr::make_from_constant(con, require_constant)); 1452 } 1453 1454 static const TypeNarrowOop *BOTTOM; 1455 static const TypeNarrowOop *NULL_PTR; 1456 1457 virtual const Type* remove_speculative() const; 1458 virtual const Type* cleanup_speculative() const; 1459 1460 #ifndef PRODUCT 1461 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; 1462 #endif 1463 }; 1464 1465 //------------------------------TypeNarrowKlass---------------------------------- 1466 // A compressed reference to klass pointer. This type wraps around a 1467 // preexisting TypeKlassPtr and forwards most of it's operations to 1468 // the underlying type. 1469 class TypeNarrowKlass : public TypeNarrowPtr { 1470 protected: 1471 TypeNarrowKlass( const TypePtr* ptrtype): TypeNarrowPtr(NarrowKlass, ptrtype) { 1472 } 1473 1474 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { 1475 return t->isa_narrowklass(); 1476 } 1477 1478 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { 1479 return t->is_narrowklass(); 1480 } 1481 1482 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { 1483 return new TypeNarrowKlass(t); 1484 } 1485 1486 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { 1487 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons()); 1488 } 1489 1490 public: 1491 static const TypeNarrowKlass *make( const TypePtr* type); 1492 1493 // static const TypeNarrowKlass *BOTTOM; 1494 static const TypeNarrowKlass *NULL_PTR; 1495 1496 #ifndef PRODUCT 1497 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; 1498 #endif 1499 }; 1500 1501 //------------------------------TypeFunc--------------------------------------- 1502 // Class of Array Types 1503 class TypeFunc : public Type { 1504 TypeFunc( const TypeTuple *domain, const TypeTuple *range ) : Type(Function), _domain(domain), _range(range) {} 1505 virtual bool eq( const Type *t ) const; 1506 virtual int hash() const; // Type specific hashing 1507 virtual bool singleton(void) const; // TRUE if type is a singleton 1508 virtual bool empty(void) const; // TRUE if type is vacuous 1509 1510 const TypeTuple* const _domain; // Domain of inputs 1511 const TypeTuple* const _range; // Range of results 1512 1513 public: 1514 // Constants are shared among ADLC and VM 1515 enum { Control = AdlcVMDeps::Control, 1516 I_O = AdlcVMDeps::I_O, 1517 Memory = AdlcVMDeps::Memory, 1518 FramePtr = AdlcVMDeps::FramePtr, 1519 ReturnAdr = AdlcVMDeps::ReturnAdr, 1520 Parms = AdlcVMDeps::Parms 1521 }; 1522 1523 1524 // Accessors: 1525 const TypeTuple* domain() const { return _domain; } 1526 const TypeTuple* range() const { return _range; } 1527 1528 static const TypeFunc *make(ciMethod* method); 1529 static const TypeFunc *make(ciSignature signature, const Type* extra); 1530 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range); 1531 1532 virtual const Type *xmeet( const Type *t ) const; 1533 virtual const Type *xdual() const; // Compute dual right now. 1534 1535 BasicType return_type() const; 1536 1537 #ifndef PRODUCT 1538 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping 1539 #endif 1540 // Convenience common pre-built types. 1541 }; 1542 1543 //------------------------------accessors-------------------------------------- 1544 inline bool Type::is_ptr_to_narrowoop() const { 1545 #ifdef _LP64 1546 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowoop_nv()); 1547 #else 1548 return false; 1549 #endif 1550 } 1551 1552 inline bool Type::is_ptr_to_narrowklass() const { 1553 #ifdef _LP64 1554 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowklass_nv()); 1555 #else 1556 return false; 1557 #endif 1558 } 1559 1560 inline float Type::getf() const { 1561 assert( _base == FloatCon, "Not a FloatCon" ); 1562 return ((TypeF*)this)->_f; 1563 } 1564 1565 inline double Type::getd() const { 1566 assert( _base == DoubleCon, "Not a DoubleCon" ); 1567 return ((TypeD*)this)->_d; 1568 } 1569 1570 inline const TypeInt *Type::is_int() const { 1571 assert( _base == Int, "Not an Int" ); 1572 return (TypeInt*)this; 1573 } 1574 1575 inline const TypeInt *Type::isa_int() const { 1576 return ( _base == Int ? (TypeInt*)this : NULL); 1577 } 1578 1579 inline const TypeLong *Type::is_long() const { 1580 assert( _base == Long, "Not a Long" ); 1581 return (TypeLong*)this; 1582 } 1583 1584 inline const TypeLong *Type::isa_long() const { 1585 return ( _base == Long ? (TypeLong*)this : NULL); 1586 } 1587 1588 inline const TypeF *Type::isa_float() const { 1589 return ((_base == FloatTop || 1590 _base == FloatCon || 1591 _base == FloatBot) ? (TypeF*)this : NULL); 1592 } 1593 1594 inline const TypeF *Type::is_float_constant() const { 1595 assert( _base == FloatCon, "Not a Float" ); 1596 return (TypeF*)this; 1597 } 1598 1599 inline const TypeF *Type::isa_float_constant() const { 1600 return ( _base == FloatCon ? (TypeF*)this : NULL); 1601 } 1602 1603 inline const TypeD *Type::isa_double() const { 1604 return ((_base == DoubleTop || 1605 _base == DoubleCon || 1606 _base == DoubleBot) ? (TypeD*)this : NULL); 1607 } 1608 1609 inline const TypeD *Type::is_double_constant() const { 1610 assert( _base == DoubleCon, "Not a Double" ); 1611 return (TypeD*)this; 1612 } 1613 1614 inline const TypeD *Type::isa_double_constant() const { 1615 return ( _base == DoubleCon ? (TypeD*)this : NULL); 1616 } 1617 1618 inline const TypeTuple *Type::is_tuple() const { 1619 assert( _base == Tuple, "Not a Tuple" ); 1620 return (TypeTuple*)this; 1621 } 1622 1623 inline const TypeAry *Type::is_ary() const { 1624 assert( _base == Array , "Not an Array" ); 1625 return (TypeAry*)this; 1626 } 1627 1628 inline const TypeAry *Type::isa_ary() const { 1629 return ((_base == Array) ? (TypeAry*)this : NULL); 1630 } 1631 1632 inline const TypeVect *Type::is_vect() const { 1633 assert( _base >= VectorS && _base <= VectorZ, "Not a Vector" ); 1634 return (TypeVect*)this; 1635 } 1636 1637 inline const TypeVect *Type::isa_vect() const { 1638 return (_base >= VectorS && _base <= VectorZ) ? (TypeVect*)this : NULL; 1639 } 1640 1641 inline const TypePtr *Type::is_ptr() const { 1642 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. 1643 assert(_base >= AnyPtr && _base <= KlassPtr, "Not a pointer"); 1644 return (TypePtr*)this; 1645 } 1646 1647 inline const TypePtr *Type::isa_ptr() const { 1648 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. 1649 return (_base >= AnyPtr && _base <= KlassPtr) ? (TypePtr*)this : NULL; 1650 } 1651 1652 inline const TypeOopPtr *Type::is_oopptr() const { 1653 // OopPtr is the first and KlassPtr the last, with no non-oops between. 1654 assert(_base >= OopPtr && _base <= AryPtr, "Not a Java pointer" ) ; 1655 return (TypeOopPtr*)this; 1656 } 1657 1658 inline const TypeOopPtr *Type::isa_oopptr() const { 1659 // OopPtr is the first and KlassPtr the last, with no non-oops between. 1660 return (_base >= OopPtr && _base <= AryPtr) ? (TypeOopPtr*)this : NULL; 1661 } 1662 1663 inline const TypeRawPtr *Type::isa_rawptr() const { 1664 return (_base == RawPtr) ? (TypeRawPtr*)this : NULL; 1665 } 1666 1667 inline const TypeRawPtr *Type::is_rawptr() const { 1668 assert( _base == RawPtr, "Not a raw pointer" ); 1669 return (TypeRawPtr*)this; 1670 } 1671 1672 inline const TypeInstPtr *Type::isa_instptr() const { 1673 return (_base == InstPtr) ? (TypeInstPtr*)this : NULL; 1674 } 1675 1676 inline const TypeInstPtr *Type::is_instptr() const { 1677 assert( _base == InstPtr, "Not an object pointer" ); 1678 return (TypeInstPtr*)this; 1679 } 1680 1681 inline const TypeAryPtr *Type::isa_aryptr() const { 1682 return (_base == AryPtr) ? (TypeAryPtr*)this : NULL; 1683 } 1684 1685 inline const TypeAryPtr *Type::is_aryptr() const { 1686 assert( _base == AryPtr, "Not an array pointer" ); 1687 return (TypeAryPtr*)this; 1688 } 1689 1690 inline const TypeNarrowOop *Type::is_narrowoop() const { 1691 // OopPtr is the first and KlassPtr the last, with no non-oops between. 1692 assert(_base == NarrowOop, "Not a narrow oop" ) ; 1693 return (TypeNarrowOop*)this; 1694 } 1695 1696 inline const TypeNarrowOop *Type::isa_narrowoop() const { 1697 // OopPtr is the first and KlassPtr the last, with no non-oops between. 1698 return (_base == NarrowOop) ? (TypeNarrowOop*)this : NULL; 1699 } 1700 1701 inline const TypeNarrowKlass *Type::is_narrowklass() const { 1702 assert(_base == NarrowKlass, "Not a narrow oop" ) ; 1703 return (TypeNarrowKlass*)this; 1704 } 1705 1706 inline const TypeNarrowKlass *Type::isa_narrowklass() const { 1707 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : NULL; 1708 } 1709 1710 inline const TypeMetadataPtr *Type::is_metadataptr() const { 1711 // MetadataPtr is the first and CPCachePtr the last 1712 assert(_base == MetadataPtr, "Not a metadata pointer" ) ; 1713 return (TypeMetadataPtr*)this; 1714 } 1715 1716 inline const TypeMetadataPtr *Type::isa_metadataptr() const { 1717 return (_base == MetadataPtr) ? (TypeMetadataPtr*)this : NULL; 1718 } 1719 1720 inline const TypeKlassPtr *Type::isa_klassptr() const { 1721 return (_base == KlassPtr) ? (TypeKlassPtr*)this : NULL; 1722 } 1723 1724 inline const TypeKlassPtr *Type::is_klassptr() const { 1725 assert( _base == KlassPtr, "Not a klass pointer" ); 1726 return (TypeKlassPtr*)this; 1727 } 1728 1729 inline const TypePtr* Type::make_ptr() const { 1730 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() : 1731 ((_base == NarrowKlass) ? is_narrowklass()->get_ptrtype() : 1732 isa_ptr()); 1733 } 1734 1735 inline const TypeOopPtr* Type::make_oopptr() const { 1736 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->isa_oopptr() : isa_oopptr(); 1737 } 1738 1739 inline const TypeNarrowOop* Type::make_narrowoop() const { 1740 return (_base == NarrowOop) ? is_narrowoop() : 1741 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : NULL); 1742 } 1743 1744 inline const TypeNarrowKlass* Type::make_narrowklass() const { 1745 return (_base == NarrowKlass) ? is_narrowklass() : 1746 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : NULL); 1747 } 1748 1749 inline bool Type::is_floatingpoint() const { 1750 if( (_base == FloatCon) || (_base == FloatBot) || 1751 (_base == DoubleCon) || (_base == DoubleBot) ) 1752 return true; 1753 return false; 1754 } 1755 1756 inline bool Type::is_ptr_to_boxing_obj() const { 1757 const TypeInstPtr* tp = isa_instptr(); 1758 return (tp != NULL) && (tp->offset() == 0) && 1759 tp->klass()->is_instance_klass() && 1760 tp->klass()->as_instance_klass()->is_box_klass(); 1761 } 1762 1763 1764 // =============================================================== 1765 // Things that need to be 64-bits in the 64-bit build but 1766 // 32-bits in the 32-bit build. Done this way to get full 1767 // optimization AND strong typing. 1768 #ifdef _LP64 1769 1770 // For type queries and asserts 1771 #define is_intptr_t is_long 1772 #define isa_intptr_t isa_long 1773 #define find_intptr_t_type find_long_type 1774 #define find_intptr_t_con find_long_con 1775 #define TypeX TypeLong 1776 #define Type_X Type::Long 1777 #define TypeX_X TypeLong::LONG 1778 #define TypeX_ZERO TypeLong::ZERO 1779 // For 'ideal_reg' machine registers 1780 #define Op_RegX Op_RegL 1781 // For phase->intcon variants 1782 #define MakeConX longcon 1783 #define ConXNode ConLNode 1784 // For array index arithmetic 1785 #define MulXNode MulLNode 1786 #define AndXNode AndLNode 1787 #define OrXNode OrLNode 1788 #define CmpXNode CmpLNode 1789 #define SubXNode SubLNode 1790 #define LShiftXNode LShiftLNode 1791 // For object size computation: 1792 #define AddXNode AddLNode 1793 #define RShiftXNode RShiftLNode 1794 // For card marks and hashcodes 1795 #define URShiftXNode URShiftLNode 1796 // UseOptoBiasInlining 1797 #define XorXNode XorLNode 1798 #define StoreXConditionalNode StoreLConditionalNode 1799 #define LoadXNode LoadLNode 1800 #define StoreXNode StoreLNode 1801 // Opcodes 1802 #define Op_LShiftX Op_LShiftL 1803 #define Op_AndX Op_AndL 1804 #define Op_AddX Op_AddL 1805 #define Op_SubX Op_SubL 1806 #define Op_XorX Op_XorL 1807 #define Op_URShiftX Op_URShiftL 1808 #define Op_LoadX Op_LoadL 1809 // conversions 1810 #define ConvI2X(x) ConvI2L(x) 1811 #define ConvL2X(x) (x) 1812 #define ConvX2I(x) ConvL2I(x) 1813 #define ConvX2L(x) (x) 1814 #define ConvX2UL(x) (x) 1815 1816 #else 1817 1818 // For type queries and asserts 1819 #define is_intptr_t is_int 1820 #define isa_intptr_t isa_int 1821 #define find_intptr_t_type find_int_type 1822 #define find_intptr_t_con find_int_con 1823 #define TypeX TypeInt 1824 #define Type_X Type::Int 1825 #define TypeX_X TypeInt::INT 1826 #define TypeX_ZERO TypeInt::ZERO 1827 // For 'ideal_reg' machine registers 1828 #define Op_RegX Op_RegI 1829 // For phase->intcon variants 1830 #define MakeConX intcon 1831 #define ConXNode ConINode 1832 // For array index arithmetic 1833 #define MulXNode MulINode 1834 #define AndXNode AndINode 1835 #define OrXNode OrINode 1836 #define CmpXNode CmpINode 1837 #define SubXNode SubINode 1838 #define LShiftXNode LShiftINode 1839 // For object size computation: 1840 #define AddXNode AddINode 1841 #define RShiftXNode RShiftINode 1842 // For card marks and hashcodes 1843 #define URShiftXNode URShiftINode 1844 // UseOptoBiasInlining 1845 #define XorXNode XorINode 1846 #define StoreXConditionalNode StoreIConditionalNode 1847 #define LoadXNode LoadINode 1848 #define StoreXNode StoreINode 1849 // Opcodes 1850 #define Op_LShiftX Op_LShiftI 1851 #define Op_AndX Op_AndI 1852 #define Op_AddX Op_AddI 1853 #define Op_SubX Op_SubI 1854 #define Op_XorX Op_XorI 1855 #define Op_URShiftX Op_URShiftI 1856 #define Op_LoadX Op_LoadI 1857 // conversions 1858 #define ConvI2X(x) (x) 1859 #define ConvL2X(x) ConvL2I(x) 1860 #define ConvX2I(x) (x) 1861 #define ConvX2L(x) ConvI2L(x) 1862 #define ConvX2UL(x) ConvI2UL(x) 1863 1864 #endif 1865 1866 #endif // SHARE_OPTO_TYPE_HPP