Mercurial > hg > truffle
annotate src/share/vm/adlc/forms.hpp @ 4530:6c6cb7be1324
bugfix
author | Christian Haeubl <christian.haeubl@oracle.com> |
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date | Wed, 08 Feb 2012 21:13:35 -0800 |
parents | f95d63e2154a |
children | 8c92982cbbc4 |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1997, 2010, 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 * | |
1552
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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 |
0 | 176 }; |
177 // Convert ideal name to a DataType, return DataType::none if not a 'ConX' | |
178 Form::DataType ideal_to_const_type(const char *ideal_type_name) const; | |
179 // Convert ideal name to a DataType, return DataType::none if not a 'sRegX | |
180 Form::DataType ideal_to_sReg_type(const char *name) const; | |
181 // Convert ideal name to a DataType, return DataType::none if not a 'RegX | |
182 Form::DataType ideal_to_Reg_type(const char *name) const; | |
183 | |
184 // Convert ideal name to a DataType, return DataType::none if not a 'LoadX | |
185 Form::DataType is_load_from_memory(const char *opType) const; | |
186 // Convert ideal name to a DataType, return DataType::none if not a 'StoreX | |
187 Form::DataType is_store_to_memory(const char *opType) const; | |
188 | |
189 // ADLC call types, matched with ideal world | |
190 enum CallType { | |
191 invalid_type = 0, // invalid call type | |
192 JAVA_STATIC = 1, // monomorphic entry | |
193 JAVA_DYNAMIC = 2, // possibly megamorphic, inline cache call | |
194 JAVA_COMPILED = 3, // callee will be compiled java | |
195 JAVA_INTERP = 4, // callee will be executed by interpreter | |
196 JAVA_NATIVE = 5, // native entrypoint | |
197 JAVA_RUNTIME = 6, // runtime entrypoint | |
198 JAVA_LEAF = 7 // calling leaf | |
199 }; | |
200 | |
201 // Interface types for operands and operand classes | |
202 enum InterfaceType { | |
203 no_interface = 0, // unknown or inconsistent interface type | |
204 constant_interface = 1, // interface to constants | |
205 register_interface = 2, // interface to registers | |
206 memory_interface = 3, // interface to memory | |
207 conditional_interface = 4 // interface for condition codes | |
208 }; | |
209 virtual Form::InterfaceType interface_type(FormDict &globals) const; | |
210 | |
211 enum CiscSpillInfo { | |
212 Not_cisc_spillable = AdlcVMDeps::Not_cisc_spillable, | |
213 Maybe_cisc_spillable = 0, | |
214 Is_cisc_spillable = 1 | |
215 // ... | |
216 }; | |
217 | |
218 // LEGAL FORM TYPES | |
219 enum { | |
220 INS, | |
221 OPER, | |
222 OPCLASS, | |
223 SRC, | |
224 ADEF, | |
225 REG, | |
226 PIPE, | |
227 CNST, | |
228 PRED, | |
229 ATTR, | |
230 MAT, | |
231 ENC, | |
232 FOR, | |
233 EXP, | |
234 REW, | |
235 EFF, | |
236 RDEF, | |
237 RCL, | |
238 ACL, | |
239 RES, | |
240 PCL, | |
241 PDEF, | |
242 REGL, | |
243 RESL, | |
244 STAL, | |
245 COMP, | |
246 PEEP, | |
247 RESO | |
248 }; | |
249 | |
250 }; | |
251 | |
252 //------------------------------FormList--------------------------------------- | |
253 class FormList { | |
254 private: | |
255 Form *_root; | |
256 Form *_tail; | |
257 Form *_cur; | |
258 int _justReset; // Set immediately after reset | |
259 Form *_cur2; // Nested iterator | |
260 int _justReset2; | |
261 | |
262 public: | |
263 void addForm(Form * entry) { | |
264 if (_tail==NULL) { _root = _tail = _cur = entry;} | |
265 else { _tail->_next = entry; _tail = entry;} | |
266 }; | |
267 Form * current() { return _cur; }; | |
268 Form * iter() { if (_justReset) _justReset = 0; | |
269 else if (_cur) _cur = _cur->_next; | |
270 return _cur;}; | |
271 void reset() { if (_root) {_cur = _root; _justReset = 1;} }; | |
272 | |
273 // Second iterator, state is internal | |
274 Form * current2(){ return _cur2; }; | |
275 Form * iter2() { if (_justReset2) _justReset2 = 0; | |
276 else if (_cur2) _cur2 = _cur2->_next; | |
277 return _cur2;}; | |
278 void reset2() { if (_root) {_cur2 = _root; _justReset2 = 1;} }; | |
279 | |
280 int count() { | |
281 int count = 0; reset(); | |
282 for( Form *cur; (cur = iter()) != NULL; ) { ++count; }; | |
283 return count; | |
284 } | |
285 | |
286 void dump() { | |
287 reset(); | |
288 Form *cur; | |
289 for(; (cur = iter()) != NULL; ) { | |
290 cur->dump(); | |
291 }; | |
292 } | |
293 | |
294 bool verify() { | |
295 bool verified = true; | |
296 | |
297 reset(); | |
298 Form *cur; | |
299 for(; (cur = iter()) != NULL; ) { | |
300 if ( ! cur->verify() ) verified = false; | |
301 }; | |
302 | |
303 return verified; | |
304 } | |
305 | |
306 void output(FILE* fp) { | |
307 reset(); | |
308 Form *cur; | |
309 for( ; (cur = iter()) != NULL; ) { | |
310 cur->output(fp); | |
311 }; | |
312 } | |
313 | |
314 FormList() { _justReset = 1; _justReset2 = 1; _root = NULL; _tail = NULL; _cur = NULL; _cur2 = NULL;}; | |
315 ~FormList(); | |
316 }; | |
317 | |
318 //------------------------------NameList--------------------------------------- | |
319 // Extendable list of pointers, <char *> | |
320 class NameList { | |
321 friend class PreserveIter; | |
322 | |
323 private: | |
324 int _cur; // Insert next entry here; count of entries | |
325 int _max; // Number of spaces allocated | |
326 const char **_names; // Array of names | |
327 | |
328 protected: | |
329 int _iter; // position during iteration | |
330 bool _justReset; // Set immediately after reset | |
331 | |
332 | |
333 public: | |
334 static const char *_signal; // reserved user-defined string | |
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335 static const char *_signal2; // reserved user-defined string |
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336 static const char *_signal3; // reserved user-defined string |
0 | 337 enum { Not_in_list = -1 }; |
338 | |
339 void addName(const char *name); | |
340 void add_signal(); | |
341 void clear(); // Remove all entries | |
342 | |
343 int count() const; | |
344 | |
345 void reset(); // Reset iteration | |
346 const char *iter(); // after reset(), first element : else next | |
347 const char *current(); // return current element in iteration. | |
624 | 348 const char *peek(int skip = 1); // returns element + skip in iteration if there is one |
0 | 349 |
350 bool current_is_signal(); // Return 'true' if current entry is signal | |
351 bool is_signal(const char *entry); // Return true if entry is a signal | |
352 | |
353 bool search(const char *); // Search for a name in the list | |
354 int index(const char *); // Return index of name in list | |
355 const char *name (intptr_t index);// Return name at index in list | |
356 | |
357 void dump(); // output to stderr | |
358 void output(FILE *fp); // Output list of names to 'fp' | |
359 | |
360 NameList(); | |
361 ~NameList(); | |
362 }; | |
363 | |
364 | |
365 // Convenience class to preserve iteration state since iterators are | |
366 // internal instead of being external. | |
367 class PreserveIter { | |
368 private: | |
369 NameList* _list; | |
370 int _iter; | |
371 bool _justReset; | |
372 | |
373 public: | |
374 PreserveIter(NameList* nl) { | |
375 _list = nl; | |
376 _iter = _list->_iter; | |
377 _justReset = _list->_justReset; | |
378 } | |
379 ~PreserveIter() { | |
380 _list->_iter = _iter; | |
381 _list->_justReset = _justReset; | |
382 } | |
383 | |
384 }; | |
385 | |
386 | |
387 //------------------------------NameAndList------------------------------------ | |
388 // Storage for a name and an associated list of names | |
389 class NameAndList { | |
390 private: | |
391 const char *_name; | |
392 NameList _list; | |
393 | |
394 public: | |
395 NameAndList(char *name); | |
396 ~NameAndList(); | |
397 | |
398 // Add to entries in list | |
399 void add_entry(const char *entry); | |
400 | |
401 // Access the name and its associated list. | |
402 const char *name() const; | |
403 void reset(); | |
404 const char *iter(); | |
405 | |
406 int count() { return _list.count(); } | |
407 | |
408 // Return the "index" entry in the list, zero-based | |
409 const char *operator[](int index); | |
410 | |
411 | |
412 void dump(); // output to stderr | |
413 void output(FILE *fp); // Output list of names to 'fp' | |
414 }; | |
415 | |
416 //------------------------------ComponentList--------------------------------- | |
417 // Component lists always have match rule operands first, followed by parameter | |
418 // operands which do not appear in the match list (in order of declaration). | |
419 class ComponentList : private NameList { | |
420 private: | |
421 int _matchcnt; // Count of match rule operands | |
422 | |
423 public: | |
424 | |
425 // This is a batch program. (And I have a destructor bug!) | |
426 void operator delete( void *ptr ) {} | |
427 | |
428 void insert(Component *component, bool mflag); | |
429 void insert(const char *name, const char *opType, int usedef, bool mflag); | |
430 | |
431 int count(); | |
432 int match_count() { return _matchcnt; } // Get count of match rule opers | |
433 | |
434 Component *iter(); // after reset(), first element : else next | |
435 Component *match_iter(); // after reset(), first element : else next | |
436 Component *post_match_iter(); // after reset(), first element : else next | |
437 void reset(); // Reset iteration | |
438 Component *current(); // return current element in iteration. | |
439 | |
440 // Return element at "position", else NULL | |
441 Component *operator[](int position); | |
442 Component *at(int position) { return (*this)[position]; } | |
443 | |
444 // Return first component having this name. | |
445 const Component *search(const char *name); | |
446 | |
447 // Return number of USEs + number of DEFs | |
448 int num_operands(); | |
449 // Return zero-based position in list; -1 if not in list. | |
450 int operand_position(const char *name, int usedef); | |
451 // Find position for this name, regardless of use/def information | |
452 int operand_position(const char *name); | |
453 // Find position for this name when looked up for output via "format" | |
454 int operand_position_format(const char *name); | |
455 // Find position for the Label when looked up for output via "format" | |
456 int label_position(); | |
457 // Find position for the Method when looked up for output via "format" | |
458 int method_position(); | |
459 | |
460 void dump(); // output to stderr | |
461 void output(FILE *fp); // Output list of names to 'fp' | |
462 | |
463 ComponentList(); | |
464 ~ComponentList(); | |
465 }; | |
466 | |
467 //------------------------------SourceForm------------------------------------- | |
468 class SourceForm : public Form { | |
469 private: | |
470 | |
471 public: | |
472 // Public Data | |
473 char *_code; // Buffer for storing code text | |
474 | |
475 // Public Methods | |
476 SourceForm(char* code); | |
477 ~SourceForm(); | |
478 | |
479 virtual const char* classname() { return "SourceForm"; } | |
480 | |
481 void dump(); // Debug printer | |
482 void output(FILE *fp); // Write output files | |
483 }; | |
484 | |
485 class HeaderForm : public SourceForm { | |
486 public: | |
487 HeaderForm(char* code) : SourceForm(code) { } | |
488 | |
489 virtual const char* classname() { return "HeaderForm"; } | |
490 }; | |
491 | |
492 class PreHeaderForm : public SourceForm { | |
493 public: | |
494 PreHeaderForm(char* code) : SourceForm(code) { } | |
495 | |
496 virtual const char* classname() { return "PreHeaderForm"; } | |
497 }; | |
498 | |
499 | |
500 | |
501 | |
502 //------------------------------Expr------------------------------------------ | |
503 #define STRING_BUFFER_LENGTH 2048 | |
504 // class Expr represents integer expressions containing constants and addition | |
505 // Value must be in range zero through maximum positive integer. 32bits. | |
506 // Expected use: instruction and operand costs | |
507 class Expr { | |
508 public: | |
509 enum { | |
510 Zero = 0, | |
511 Max = 0x7fffffff | |
512 }; | |
513 const char *_external_name; // if !NULL, then print this instead of _expr | |
514 const char *_expr; | |
515 int _min_value; | |
516 int _max_value; | |
517 | |
518 Expr(); | |
519 Expr(const char *cost); | |
520 Expr(const char *name, const char *expression, int min_value, int max_value); | |
521 Expr *clone() const; | |
522 | |
523 bool is_unknown() const { return (this == Expr::get_unknown()); } | |
524 bool is_zero() const { return (_min_value == Expr::Zero && _max_value == Expr::Zero); } | |
525 bool less_than_or_equal(const Expr *c) const { return (_max_value <= c->_min_value); } | |
526 | |
527 void add(const Expr *c); | |
528 void add(const char *c); | |
529 void add(const char *c, ArchDesc &AD); // check if 'c' is defined in <arch>.ad | |
530 void set_external_name(const char *name) { _external_name = name; } | |
531 | |
532 const char *as_string() const { return (_external_name != NULL ? _external_name : _expr); } | |
533 void print() const; | |
534 void print_define(FILE *fp) const; | |
535 void print_assert(FILE *fp) const; | |
536 | |
537 static Expr *get_unknown(); // Returns pointer to shared unknown cost instance | |
538 | |
539 static char *buffer() { return &external_buffer[0]; } | |
540 static bool init_buffers(); // Fill buffers with 0 | |
541 static bool check_buffers(); // if buffer use may have overflowed, assert | |
542 | |
543 private: | |
544 static Expr *_unknown_expr; | |
545 static char string_buffer[STRING_BUFFER_LENGTH]; | |
546 static char external_buffer[STRING_BUFFER_LENGTH]; | |
547 static bool _init_buffers; | |
548 const char *compute_expr(const Expr *c1, const Expr *c2); // cost as string after adding 'c1' and 'c2' | |
549 int compute_min (const Expr *c1, const Expr *c2); // minimum after adding 'c1' and 'c2' | |
550 int compute_max (const Expr *c1, const Expr *c2); // maximum after adding 'c1' and 'c2' | |
551 const char *compute_external(const Expr *c1, const Expr *c2); // external name after adding 'c1' and 'c2' | |
552 }; | |
553 | |
554 //------------------------------ExprDict--------------------------------------- | |
555 // Dictionary containing Exprs | |
556 class ExprDict { | |
557 private: | |
558 Dict _expr; // map names, char*, to their Expr* or NULL | |
559 NameList _defines; // record the order of definitions entered with define call | |
560 | |
561 // Disable public use of constructor, copy-ctor, operator =, operator == | |
562 ExprDict( ); | |
563 ExprDict( const ExprDict & ); // Deep-copy guts | |
564 ExprDict &operator =( const ExprDict & ); | |
565 // == compares two dictionaries; they must have the same keys (their keys | |
566 // must match using CmpKey) and they must have the same values (pointer | |
567 // comparison). If so 1 is returned, if not 0 is returned. | |
568 bool operator ==(const ExprDict &d) const; // Compare dictionaries for equal | |
569 | |
570 public: | |
571 // cmp is a key comparision routine. hash is a routine to hash a key. | |
572 ExprDict( CmpKey cmp, Hash hash, Arena *arena ); | |
573 ~ExprDict(); | |
574 | |
575 // Return # of key-value pairs in dict | |
576 int Size(void) const; | |
577 | |
578 // define inserts the given key-value pair into the dictionary, | |
579 // and records the name in order for later output, ... | |
580 const Expr *define(const char *name, Expr *expr); | |
581 | |
582 // Insert inserts the given key-value pair into the dictionary. The prior | |
583 // value of the key is returned; NULL if the key was not previously defined. | |
584 const Expr *Insert(const char *name, Expr *expr); // A new key-value | |
585 | |
586 // Find finds the value of a given key; or NULL if not found. | |
587 // The dictionary is NOT changed. | |
588 const Expr *operator [](const char *name) const; // Do a lookup | |
589 | |
590 void print_defines(FILE *fp); | |
591 void print_asserts(FILE *fp); | |
592 void dump(); | |
593 }; | |
1972 | 594 |
595 #endif // SHARE_VM_ADLC_FORMS_HPP |