Mercurial > hg > truffle
annotate src/share/vm/adlc/forms.hpp @ 7212:291ffc492eb6
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Fri, 14 Dec 2012 14:35:13 +0100 |
| parents | d336b3173277 |
| children | b42fe1a8e180 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_ADLC_FORMS_HPP |
| 26 #define SHARE_VM_ADLC_FORMS_HPP | |
| 27 | |
| 0 | 28 // FORMS.HPP - ADL Parser Generic and Utility Forms Classes |
| 29 | |
| 30 #define TRUE 1 | |
| 31 #define FALSE 0 | |
| 32 | |
| 33 // DEFINITIONS OF LEGAL ATTRIBUTE TYPES | |
| 34 #define INS_ATTR 0 | |
| 35 #define OP_ATTR 1 | |
| 36 | |
| 37 // DEFINITIONS OF LEGAL CONSTRAINT TYPES | |
| 38 | |
| 39 // Class List | |
| 40 class Form; | |
| 41 class InstructForm; | |
| 42 class MachNodeForm; | |
| 43 class OperandForm; | |
| 44 class OpClassForm; | |
| 45 class AttributeForm; | |
| 46 class RegisterForm; | |
| 47 class PipelineForm; | |
| 48 class SourceForm; | |
| 49 class EncodeForm; | |
| 50 class Component; | |
| 51 class Constraint; | |
| 52 class Predicate; | |
| 53 class MatchRule; | |
| 54 class Attribute; | |
| 55 class Effect; | |
| 56 class ExpandRule; | |
| 57 class RewriteRule; | |
| 58 class ConstructRule; | |
| 59 class FormatRule; | |
| 60 class Peephole; | |
| 61 class EncClass; | |
| 62 class Interface; | |
| 63 class RegInterface; | |
| 64 class ConstInterface; | |
| 65 class MemInterface; | |
| 66 class CondInterface; | |
| 67 class Opcode; | |
| 68 class InsEncode; | |
| 69 class RegDef; | |
| 70 class RegClass; | |
| 71 class AllocClass; | |
| 72 class ResourceForm; | |
| 73 class PipeClassForm; | |
| 74 class PeepMatch; | |
| 75 class PeepConstraint; | |
| 76 class PeepReplace; | |
| 77 class MatchList; | |
| 78 | |
| 79 class ArchDesc; | |
| 80 | |
| 81 //------------------------------FormDict--------------------------------------- | |
| 82 // Dictionary containing Forms, and objects derived from forms | |
| 83 class FormDict { | |
| 84 private: | |
| 85 Dict _form; // map names, char*, to their Form* or NULL | |
| 86 | |
| 87 // Disable public use of constructor, copy-ctor, operator =, operator == | |
| 88 FormDict( ); | |
| 89 FormDict &operator =( const FormDict & ); | |
| 90 // == compares two dictionaries; they must have the same keys (their keys | |
| 91 // must match using CmpKey) and they must have the same values (pointer | |
| 92 // comparison). If so 1 is returned, if not 0 is returned. | |
| 93 bool operator ==(const FormDict &d) const; // Compare dictionaries for equal | |
| 94 | |
| 95 public: | |
| 96 // cmp is a key comparision routine. hash is a routine to hash a key. | |
| 97 // FormDict( CmpKey cmp, Hash hash ); | |
| 98 FormDict( CmpKey cmp, Hash hash, Arena *arena ); | |
| 99 FormDict( const FormDict & fd ); // Deep-copy guts | |
| 100 ~FormDict(); | |
| 101 | |
| 102 // Return # of key-value pairs in dict | |
| 103 int Size(void) const; | |
| 104 | |
| 105 // Insert inserts the given key-value pair into the dictionary. The prior | |
| 106 // value of the key is returned; NULL if the key was not previously defined. | |
| 107 const Form *Insert(const char *name, Form *form); // A new key-value | |
| 108 | |
| 109 // Find finds the value of a given key; or NULL if not found. | |
| 110 // The dictionary is NOT changed. | |
| 111 const Form *operator [](const char *name) const; // Do a lookup | |
| 112 | |
| 113 void dump(); | |
| 114 }; | |
| 115 | |
| 116 // ***** Master Class for ADL Parser Forms ***** | |
| 117 //------------------------------Form------------------------------------------- | |
| 118 class Form { | |
| 119 public: | |
| 120 static Arena *arena; // arena used by forms | |
| 121 private: | |
| 122 static Arena *generate_arena(); // allocate arena used by forms | |
| 123 | |
| 124 protected: | |
| 125 int _ftype; // Indicator for derived class type | |
| 126 | |
| 127 public: | |
| 128 // Public Data | |
| 129 Form *_next; // Next pointer for form lists | |
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130 int _linenum; // Line number for debugging |
| 0 | 131 |
| 132 // Dynamic type check for common forms. | |
| 133 virtual OpClassForm *is_opclass() const; | |
| 134 virtual OperandForm *is_operand() const; | |
| 135 virtual InstructForm *is_instruction() const; | |
| 136 virtual MachNodeForm *is_machnode() const; | |
| 137 virtual AttributeForm *is_attribute() const; | |
| 138 virtual Effect *is_effect() const; | |
| 139 virtual ResourceForm *is_resource() const; | |
| 140 virtual PipeClassForm *is_pipeclass() const; | |
| 141 | |
| 142 // Check if this form is an operand usable for cisc-spilling | |
| 143 virtual bool is_cisc_reg(FormDict &globals) const { return false; } | |
| 144 virtual bool is_cisc_mem(FormDict &globals) const { return false; } | |
| 145 | |
| 146 // Public Methods | |
| 147 Form(int formType=0, int line=0) | |
| 148 : _next(NULL), _linenum(line), _ftype(formType) { }; | |
| 149 ~Form() {}; | |
| 150 | |
| 151 virtual bool ideal_only() const { | |
| 152 assert(0,"Check of ideal status on non-instruction/operand form.\n"); | |
| 153 return FALSE; | |
| 154 } | |
| 155 | |
| 156 // Check constraints after parsing | |
| 157 virtual bool verify() { return true; } | |
| 158 | |
| 159 virtual void dump() { output(stderr); } // Debug printer | |
| 160 // Write info to output files | |
| 161 virtual void output(FILE *fp) { fprintf(fp,"Form Output"); } | |
| 162 | |
| 163 public: | |
| 164 // ADLC types, match the last character on ideal operands and instructions | |
| 165 enum DataType { | |
| 166 none = 0, // Not a simple type | |
| 167 idealI = 1, // Integer type | |
| 168 idealP = 2, // Pointer types, oop(s) | |
| 169 idealL = 3, // Long type | |
| 170 idealF = 4, // Float type | |
| 171 idealD = 5, // Double type | |
| 172 idealB = 6, // Byte type | |
| 173 idealC = 7, // Char type | |
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174 idealS = 8, // String type |
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175 idealN = 9, // Narrow oop types |
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176 idealNKlass = 10, // Narrow klass types |
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177 idealV = 11 // Vector type |
| 0 | 178 }; |
| 179 // Convert ideal name to a DataType, return DataType::none if not a 'ConX' | |
| 180 Form::DataType ideal_to_const_type(const char *ideal_type_name) const; | |
| 181 // Convert ideal name to a DataType, return DataType::none if not a 'sRegX | |
| 182 Form::DataType ideal_to_sReg_type(const char *name) const; | |
| 183 // Convert ideal name to a DataType, return DataType::none if not a 'RegX | |
| 184 Form::DataType ideal_to_Reg_type(const char *name) const; | |
| 185 | |
| 186 // Convert ideal name to a DataType, return DataType::none if not a 'LoadX | |
| 187 Form::DataType is_load_from_memory(const char *opType) const; | |
| 188 // Convert ideal name to a DataType, return DataType::none if not a 'StoreX | |
| 189 Form::DataType is_store_to_memory(const char *opType) const; | |
| 190 | |
| 191 // ADLC call types, matched with ideal world | |
| 192 enum CallType { | |
| 193 invalid_type = 0, // invalid call type | |
| 194 JAVA_STATIC = 1, // monomorphic entry | |
| 195 JAVA_DYNAMIC = 2, // possibly megamorphic, inline cache call | |
| 196 JAVA_COMPILED = 3, // callee will be compiled java | |
| 197 JAVA_INTERP = 4, // callee will be executed by interpreter | |
| 198 JAVA_NATIVE = 5, // native entrypoint | |
| 199 JAVA_RUNTIME = 6, // runtime entrypoint | |
| 200 JAVA_LEAF = 7 // calling leaf | |
| 201 }; | |
| 202 | |
| 203 // Interface types for operands and operand classes | |
| 204 enum InterfaceType { | |
| 205 no_interface = 0, // unknown or inconsistent interface type | |
| 206 constant_interface = 1, // interface to constants | |
| 207 register_interface = 2, // interface to registers | |
| 208 memory_interface = 3, // interface to memory | |
| 209 conditional_interface = 4 // interface for condition codes | |
| 210 }; | |
| 211 virtual Form::InterfaceType interface_type(FormDict &globals) const; | |
| 212 | |
| 213 enum CiscSpillInfo { | |
| 214 Not_cisc_spillable = AdlcVMDeps::Not_cisc_spillable, | |
| 215 Maybe_cisc_spillable = 0, | |
| 216 Is_cisc_spillable = 1 | |
| 217 // ... | |
| 218 }; | |
| 219 | |
| 220 // LEGAL FORM TYPES | |
| 221 enum { | |
| 222 INS, | |
| 223 OPER, | |
| 224 OPCLASS, | |
| 225 SRC, | |
| 226 ADEF, | |
| 227 REG, | |
| 228 PIPE, | |
| 229 CNST, | |
| 230 PRED, | |
| 231 ATTR, | |
| 232 MAT, | |
| 233 ENC, | |
| 234 FOR, | |
| 235 EXP, | |
| 236 REW, | |
| 237 EFF, | |
| 238 RDEF, | |
| 239 RCL, | |
| 240 ACL, | |
| 241 RES, | |
| 242 PCL, | |
| 243 PDEF, | |
| 244 REGL, | |
| 245 RESL, | |
| 246 STAL, | |
| 247 COMP, | |
| 248 PEEP, | |
| 249 RESO | |
| 250 }; | |
| 251 | |
| 252 }; | |
| 253 | |
| 254 //------------------------------FormList--------------------------------------- | |
| 255 class FormList { | |
| 256 private: | |
| 257 Form *_root; | |
| 258 Form *_tail; | |
| 259 Form *_cur; | |
| 260 int _justReset; // Set immediately after reset | |
| 261 Form *_cur2; // Nested iterator | |
| 262 int _justReset2; | |
| 263 | |
| 264 public: | |
| 265 void addForm(Form * entry) { | |
| 266 if (_tail==NULL) { _root = _tail = _cur = entry;} | |
| 267 else { _tail->_next = entry; _tail = entry;} | |
| 268 }; | |
| 269 Form * current() { return _cur; }; | |
| 270 Form * iter() { if (_justReset) _justReset = 0; | |
| 271 else if (_cur) _cur = _cur->_next; | |
| 272 return _cur;}; | |
| 273 void reset() { if (_root) {_cur = _root; _justReset = 1;} }; | |
| 274 | |
| 275 // Second iterator, state is internal | |
| 276 Form * current2(){ return _cur2; }; | |
| 277 Form * iter2() { if (_justReset2) _justReset2 = 0; | |
| 278 else if (_cur2) _cur2 = _cur2->_next; | |
| 279 return _cur2;}; | |
| 280 void reset2() { if (_root) {_cur2 = _root; _justReset2 = 1;} }; | |
| 281 | |
| 282 int count() { | |
| 283 int count = 0; reset(); | |
| 284 for( Form *cur; (cur = iter()) != NULL; ) { ++count; }; | |
| 285 return count; | |
| 286 } | |
| 287 | |
| 288 void dump() { | |
| 289 reset(); | |
| 290 Form *cur; | |
| 291 for(; (cur = iter()) != NULL; ) { | |
| 292 cur->dump(); | |
| 293 }; | |
| 294 } | |
| 295 | |
| 296 bool verify() { | |
| 297 bool verified = true; | |
| 298 | |
| 299 reset(); | |
| 300 Form *cur; | |
| 301 for(; (cur = iter()) != NULL; ) { | |
| 302 if ( ! cur->verify() ) verified = false; | |
| 303 }; | |
| 304 | |
| 305 return verified; | |
| 306 } | |
| 307 | |
| 308 void output(FILE* fp) { | |
| 309 reset(); | |
| 310 Form *cur; | |
| 311 for( ; (cur = iter()) != NULL; ) { | |
| 312 cur->output(fp); | |
| 313 }; | |
| 314 } | |
| 315 | |
| 316 FormList() { _justReset = 1; _justReset2 = 1; _root = NULL; _tail = NULL; _cur = NULL; _cur2 = NULL;}; | |
| 317 ~FormList(); | |
| 318 }; | |
| 319 | |
| 320 //------------------------------NameList--------------------------------------- | |
| 321 // Extendable list of pointers, <char *> | |
| 322 class NameList { | |
| 323 friend class PreserveIter; | |
| 324 | |
| 325 private: | |
| 326 int _cur; // Insert next entry here; count of entries | |
| 327 int _max; // Number of spaces allocated | |
| 328 const char **_names; // Array of names | |
| 329 | |
| 330 protected: | |
| 331 int _iter; // position during iteration | |
| 332 bool _justReset; // Set immediately after reset | |
| 333 | |
| 334 | |
| 335 public: | |
| 336 static const char *_signal; // reserved user-defined string | |
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337 static const char *_signal2; // reserved user-defined string |
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338 static const char *_signal3; // reserved user-defined string |
| 0 | 339 enum { Not_in_list = -1 }; |
| 340 | |
| 341 void addName(const char *name); | |
| 342 void add_signal(); | |
| 343 void clear(); // Remove all entries | |
| 344 | |
| 345 int count() const; | |
| 346 | |
| 347 void reset(); // Reset iteration | |
| 348 const char *iter(); // after reset(), first element : else next | |
| 349 const char *current(); // return current element in iteration. | |
| 624 | 350 const char *peek(int skip = 1); // returns element + skip in iteration if there is one |
| 0 | 351 |
| 352 bool current_is_signal(); // Return 'true' if current entry is signal | |
| 353 bool is_signal(const char *entry); // Return true if entry is a signal | |
| 354 | |
| 355 bool search(const char *); // Search for a name in the list | |
| 356 int index(const char *); // Return index of name in list | |
| 357 const char *name (intptr_t index);// Return name at index in list | |
| 358 | |
| 359 void dump(); // output to stderr | |
| 360 void output(FILE *fp); // Output list of names to 'fp' | |
| 361 | |
| 362 NameList(); | |
| 363 ~NameList(); | |
| 364 }; | |
| 365 | |
| 366 | |
| 367 // Convenience class to preserve iteration state since iterators are | |
| 368 // internal instead of being external. | |
| 369 class PreserveIter { | |
| 370 private: | |
| 371 NameList* _list; | |
| 372 int _iter; | |
| 373 bool _justReset; | |
| 374 | |
| 375 public: | |
| 376 PreserveIter(NameList* nl) { | |
| 377 _list = nl; | |
| 378 _iter = _list->_iter; | |
| 379 _justReset = _list->_justReset; | |
| 380 } | |
| 381 ~PreserveIter() { | |
| 382 _list->_iter = _iter; | |
| 383 _list->_justReset = _justReset; | |
| 384 } | |
| 385 | |
| 386 }; | |
| 387 | |
| 388 | |
| 389 //------------------------------NameAndList------------------------------------ | |
| 390 // Storage for a name and an associated list of names | |
| 391 class NameAndList { | |
| 392 private: | |
| 393 const char *_name; | |
| 394 NameList _list; | |
| 395 | |
| 396 public: | |
| 397 NameAndList(char *name); | |
| 398 ~NameAndList(); | |
| 399 | |
| 400 // Add to entries in list | |
| 401 void add_entry(const char *entry); | |
| 402 | |
| 403 // Access the name and its associated list. | |
| 404 const char *name() const; | |
| 405 void reset(); | |
| 406 const char *iter(); | |
| 407 | |
| 408 int count() { return _list.count(); } | |
| 409 | |
| 410 // Return the "index" entry in the list, zero-based | |
| 411 const char *operator[](int index); | |
| 412 | |
| 413 | |
| 414 void dump(); // output to stderr | |
| 415 void output(FILE *fp); // Output list of names to 'fp' | |
| 416 }; | |
| 417 | |
| 418 //------------------------------ComponentList--------------------------------- | |
| 419 // Component lists always have match rule operands first, followed by parameter | |
| 420 // operands which do not appear in the match list (in order of declaration). | |
| 421 class ComponentList : private NameList { | |
| 422 private: | |
| 423 int _matchcnt; // Count of match rule operands | |
| 424 | |
| 425 public: | |
| 426 | |
| 427 // This is a batch program. (And I have a destructor bug!) | |
| 428 void operator delete( void *ptr ) {} | |
| 429 | |
| 430 void insert(Component *component, bool mflag); | |
| 431 void insert(const char *name, const char *opType, int usedef, bool mflag); | |
| 432 | |
| 433 int count(); | |
| 434 int match_count() { return _matchcnt; } // Get count of match rule opers | |
| 435 | |
| 436 Component *iter(); // after reset(), first element : else next | |
| 437 Component *match_iter(); // after reset(), first element : else next | |
| 438 Component *post_match_iter(); // after reset(), first element : else next | |
| 439 void reset(); // Reset iteration | |
| 440 Component *current(); // return current element in iteration. | |
| 441 | |
| 442 // Return element at "position", else NULL | |
| 443 Component *operator[](int position); | |
| 444 Component *at(int position) { return (*this)[position]; } | |
| 445 | |
| 446 // Return first component having this name. | |
| 447 const Component *search(const char *name); | |
| 448 | |
| 449 // Return number of USEs + number of DEFs | |
| 450 int num_operands(); | |
| 451 // Return zero-based position in list; -1 if not in list. | |
| 6850 | 452 int operand_position(const char *name, int usedef, Form *fm); |
| 0 | 453 // Find position for this name, regardless of use/def information |
| 454 int operand_position(const char *name); | |
| 455 // Find position for this name when looked up for output via "format" | |
| 6850 | 456 int operand_position_format(const char *name, Form *fm); |
| 0 | 457 // Find position for the Label when looked up for output via "format" |
| 458 int label_position(); | |
| 459 // Find position for the Method when looked up for output via "format" | |
| 460 int method_position(); | |
| 461 | |
| 462 void dump(); // output to stderr | |
| 463 void output(FILE *fp); // Output list of names to 'fp' | |
| 464 | |
| 465 ComponentList(); | |
| 466 ~ComponentList(); | |
| 467 }; | |
| 468 | |
| 469 //------------------------------SourceForm------------------------------------- | |
| 470 class SourceForm : public Form { | |
| 471 private: | |
| 472 | |
| 473 public: | |
| 474 // Public Data | |
| 475 char *_code; // Buffer for storing code text | |
| 476 | |
| 477 // Public Methods | |
| 478 SourceForm(char* code); | |
| 479 ~SourceForm(); | |
| 480 | |
| 481 virtual const char* classname() { return "SourceForm"; } | |
| 482 | |
| 483 void dump(); // Debug printer | |
| 484 void output(FILE *fp); // Write output files | |
| 485 }; | |
| 486 | |
| 487 class HeaderForm : public SourceForm { | |
| 488 public: | |
| 489 HeaderForm(char* code) : SourceForm(code) { } | |
| 490 | |
| 491 virtual const char* classname() { return "HeaderForm"; } | |
| 492 }; | |
| 493 | |
| 494 class PreHeaderForm : public SourceForm { | |
| 495 public: | |
| 496 PreHeaderForm(char* code) : SourceForm(code) { } | |
| 497 | |
| 498 virtual const char* classname() { return "PreHeaderForm"; } | |
| 499 }; | |
| 500 | |
| 501 | |
| 502 | |
| 503 | |
| 504 //------------------------------Expr------------------------------------------ | |
| 505 #define STRING_BUFFER_LENGTH 2048 | |
| 506 // class Expr represents integer expressions containing constants and addition | |
| 507 // Value must be in range zero through maximum positive integer. 32bits. | |
| 508 // Expected use: instruction and operand costs | |
| 509 class Expr { | |
| 510 public: | |
| 511 enum { | |
| 512 Zero = 0, | |
| 513 Max = 0x7fffffff | |
| 514 }; | |
| 515 const char *_external_name; // if !NULL, then print this instead of _expr | |
| 516 const char *_expr; | |
| 517 int _min_value; | |
| 518 int _max_value; | |
| 519 | |
| 520 Expr(); | |
| 521 Expr(const char *cost); | |
| 522 Expr(const char *name, const char *expression, int min_value, int max_value); | |
| 523 Expr *clone() const; | |
| 524 | |
| 525 bool is_unknown() const { return (this == Expr::get_unknown()); } | |
| 526 bool is_zero() const { return (_min_value == Expr::Zero && _max_value == Expr::Zero); } | |
| 527 bool less_than_or_equal(const Expr *c) const { return (_max_value <= c->_min_value); } | |
| 528 | |
| 529 void add(const Expr *c); | |
| 530 void add(const char *c); | |
| 531 void add(const char *c, ArchDesc &AD); // check if 'c' is defined in <arch>.ad | |
| 532 void set_external_name(const char *name) { _external_name = name; } | |
| 533 | |
| 534 const char *as_string() const { return (_external_name != NULL ? _external_name : _expr); } | |
| 535 void print() const; | |
| 536 void print_define(FILE *fp) const; | |
| 537 void print_assert(FILE *fp) const; | |
| 538 | |
| 539 static Expr *get_unknown(); // Returns pointer to shared unknown cost instance | |
| 540 | |
| 541 static char *buffer() { return &external_buffer[0]; } | |
| 542 static bool init_buffers(); // Fill buffers with 0 | |
| 543 static bool check_buffers(); // if buffer use may have overflowed, assert | |
| 544 | |
| 545 private: | |
| 546 static Expr *_unknown_expr; | |
| 547 static char string_buffer[STRING_BUFFER_LENGTH]; | |
| 548 static char external_buffer[STRING_BUFFER_LENGTH]; | |
| 549 static bool _init_buffers; | |
| 550 const char *compute_expr(const Expr *c1, const Expr *c2); // cost as string after adding 'c1' and 'c2' | |
| 551 int compute_min (const Expr *c1, const Expr *c2); // minimum after adding 'c1' and 'c2' | |
| 552 int compute_max (const Expr *c1, const Expr *c2); // maximum after adding 'c1' and 'c2' | |
| 553 const char *compute_external(const Expr *c1, const Expr *c2); // external name after adding 'c1' and 'c2' | |
| 554 }; | |
| 555 | |
| 556 //------------------------------ExprDict--------------------------------------- | |
| 557 // Dictionary containing Exprs | |
| 558 class ExprDict { | |
| 559 private: | |
| 560 Dict _expr; // map names, char*, to their Expr* or NULL | |
| 561 NameList _defines; // record the order of definitions entered with define call | |
| 562 | |
| 563 // Disable public use of constructor, copy-ctor, operator =, operator == | |
| 564 ExprDict( ); | |
| 565 ExprDict( const ExprDict & ); // Deep-copy guts | |
| 566 ExprDict &operator =( const ExprDict & ); | |
| 567 // == compares two dictionaries; they must have the same keys (their keys | |
| 568 // must match using CmpKey) and they must have the same values (pointer | |
| 569 // comparison). If so 1 is returned, if not 0 is returned. | |
| 570 bool operator ==(const ExprDict &d) const; // Compare dictionaries for equal | |
| 571 | |
| 572 public: | |
| 573 // cmp is a key comparision routine. hash is a routine to hash a key. | |
| 574 ExprDict( CmpKey cmp, Hash hash, Arena *arena ); | |
| 575 ~ExprDict(); | |
| 576 | |
| 577 // Return # of key-value pairs in dict | |
| 578 int Size(void) const; | |
| 579 | |
| 580 // define inserts the given key-value pair into the dictionary, | |
| 581 // and records the name in order for later output, ... | |
| 582 const Expr *define(const char *name, Expr *expr); | |
| 583 | |
| 584 // Insert inserts the given key-value pair into the dictionary. The prior | |
| 585 // value of the key is returned; NULL if the key was not previously defined. | |
| 586 const Expr *Insert(const char *name, Expr *expr); // A new key-value | |
| 587 | |
| 588 // Find finds the value of a given key; or NULL if not found. | |
| 589 // The dictionary is NOT changed. | |
| 590 const Expr *operator [](const char *name) const; // Do a lookup | |
| 591 | |
| 592 void print_defines(FILE *fp); | |
| 593 void print_asserts(FILE *fp); | |
| 594 void dump(); | |
| 595 }; | |
| 1972 | 596 |
| 597 #endif // SHARE_VM_ADLC_FORMS_HPP |