1 /*
2 * Copyright (c) 1998, 2012, 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 // FORMS.CPP - Definitions for ADL Parser Forms Classes
26 #include "adlc.hpp"
27
28 //==============================Register Allocation============================
29 int RegisterForm::_reg_ctr = 0;
30
31 //------------------------------RegisterForm-----------------------------------
32 // Constructor
33 RegisterForm::RegisterForm()
34 : _regDef(cmpstr,hashstr, Form::arena),
35 _regClass(cmpstr,hashstr, Form::arena),
36 _allocClass(cmpstr,hashstr, Form::arena) {
37 }
38 RegisterForm::~RegisterForm() {
39 }
40
41 // record a new register definition
42 void RegisterForm::addRegDef(char *name, char *callingConv, char *c_conv,
43 char *idealtype, char *encoding, char* concrete) {
44 RegDef *regDef = new RegDef(name, callingConv, c_conv, idealtype, encoding, concrete);
45 _rdefs.addName(name);
46 _regDef.Insert(name,regDef);
47 }
48
49 // record a new register class
50 RegClass *RegisterForm::addRegClass(const char *className) {
51 RegClass *regClass = new RegClass(className);
52 _rclasses.addName(className);
53 _regClass.Insert(className,regClass);
54 return regClass;
55 }
56
57 // record a new register class
58 AllocClass *RegisterForm::addAllocClass(char *className) {
59 AllocClass *allocClass = new AllocClass(className);
60 _aclasses.addName(className);
61 _allocClass.Insert(className,allocClass);
62 return allocClass;
63 }
64
65 // Called after parsing the Register block. Record the register class
66 // for spill-slots/regs.
67 void RegisterForm::addSpillRegClass() {
68 // Stack slots start at the next available even register number.
69 _reg_ctr = (_reg_ctr+7) & ~7;
70 const char *rc_name = "stack_slots";
71 RegClass *reg_class = new RegClass(rc_name);
72 reg_class->_stack_or_reg = true;
73 _rclasses.addName(rc_name);
74 _regClass.Insert(rc_name,reg_class);
75 }
76
77
78 // Provide iteration over all register definitions
79 // in the order used by the register allocator
80 void RegisterForm::reset_RegDefs() {
81 _current_ac = NULL;
82 _aclasses.reset();
83 }
84
85 RegDef *RegisterForm::iter_RegDefs() {
86 // Check if we need to get the next AllocClass
87 if ( _current_ac == NULL ) {
88 const char *ac_name = _aclasses.iter();
89 if( ac_name == NULL ) return NULL; // No more allocation classes
90 _current_ac = (AllocClass*)_allocClass[ac_name];
91 _current_ac->_regDefs.reset();
92 assert( _current_ac != NULL, "Name must match an allocation class");
93 }
94
95 const char *rd_name = _current_ac->_regDefs.iter();
96 if( rd_name == NULL ) {
97 // At end of this allocation class, check the next
98 _current_ac = NULL;
99 return iter_RegDefs();
100 }
101 RegDef *reg_def = (RegDef*)_current_ac->_regDef[rd_name];
102 assert( reg_def != NULL, "Name must match a register definition");
103 return reg_def;
104 }
105
106 // return the register definition with name 'regName'
107 RegDef *RegisterForm::getRegDef(const char *regName) {
108 RegDef *regDef = (RegDef*)_regDef[regName];
109 return regDef;
110 }
111
112 // return the register class with name 'className'
113 RegClass *RegisterForm::getRegClass(const char *className) {
114 RegClass *regClass = (RegClass*)_regClass[className];
115 return regClass;
116 }
117
118
119 // Check that register classes are compatible with chunks
120 bool RegisterForm::verify() {
121 bool valid = true;
122
123 // Verify Register Classes
124 // check that each register class contains registers from one chunk
125 const char *rc_name = NULL;
126 _rclasses.reset();
127 while ( (rc_name = _rclasses.iter()) != NULL ) {
128 // Check the chunk value for all registers in this class
129 RegClass *reg_class = getRegClass(rc_name);
130 assert( reg_class != NULL, "InternalError() no matching register class");
131 } // end of RegClasses
132
133 // Verify that every register has been placed into an allocation class
134 RegDef *reg_def = NULL;
135 reset_RegDefs();
136 uint num_register_zero = 0;
137 while ( (reg_def = iter_RegDefs()) != NULL ) {
138 if( reg_def->register_num() == 0 ) ++num_register_zero;
139 }
140 if( num_register_zero > 1 ) {
141 fprintf(stderr,
142 "ERROR: More than one register has been assigned register-number 0.\n"
143 "Probably because a register has not been entered into an allocation class.\n");
144 }
145
146 return valid;
147 }
148
149 // Compute RegMask size
150 int RegisterForm::RegMask_Size() {
151 // Need at least this many words
152 int words_for_regs = (_reg_ctr + 31)>>5;
153 // The array of Register Mask bits should be large enough to cover
154 // all the machine registers and all parameters that need to be passed
155 // on the stack (stack registers) up to some interesting limit. Methods
156 // that need more parameters will NOT be compiled. On Intel, the limit
157 // is something like 90+ parameters.
158 // Add a few (3 words == 96 bits) for incoming & outgoing arguments to calls.
159 // Round up to the next doubleword size.
160 return (words_for_regs + 3 + 1) & ~1;
161 }
162
163 void RegisterForm::dump() { // Debug printer
164 output(stderr);
165 }
166
167 void RegisterForm::output(FILE *fp) { // Write info to output files
168 const char *name;
169 fprintf(fp,"\n");
170 fprintf(fp,"-------------------- Dump RegisterForm --------------------\n");
171 for(_rdefs.reset(); (name = _rdefs.iter()) != NULL;) {
172 ((RegDef*)_regDef[name])->output(fp);
173 }
174 fprintf(fp,"\n");
175 for (_rclasses.reset(); (name = _rclasses.iter()) != NULL;) {
176 ((RegClass*)_regClass[name])->output(fp);
177 }
178 fprintf(fp,"\n");
179 for (_aclasses.reset(); (name = _aclasses.iter()) != NULL;) {
180 ((AllocClass*)_allocClass[name])->output(fp);
181 }
182 fprintf(fp,"-------------------- end RegisterForm --------------------\n");
183 }
184
185 //------------------------------RegDef-----------------------------------------
186 // Constructor
187 RegDef::RegDef(char *regname, char *callconv, char *c_conv, char * idealtype, char * encode, char * concrete)
188 : _regname(regname), _callconv(callconv), _c_conv(c_conv),
189 _idealtype(idealtype),
190 _register_encode(encode),
191 _concrete(concrete),
192 _register_num(0) {
193
194 // Chunk and register mask are determined by the register number
195 // _register_num is set when registers are added to an allocation class
196 }
197 RegDef::~RegDef() { // Destructor
198 }
199
200 void RegDef::set_register_num(uint32 register_num) {
201 _register_num = register_num;
202 }
203
204 // Bit pattern used for generating machine code
205 const char* RegDef::register_encode() const {
206 return _register_encode;
207 }
208
209 // Register number used in machine-independent code
210 uint32 RegDef::register_num() const {
211 return _register_num;
212 }
213
214 void RegDef::dump() {
215 output(stderr);
216 }
217
218 void RegDef::output(FILE *fp) { // Write info to output files
219 fprintf(fp,"RegDef: %s (%s) encode as %s using number %d\n",
220 _regname, (_callconv?_callconv:""), _register_encode, _register_num);
221 fprintf(fp,"\n");
222 }
223
224
225 //------------------------------RegClass---------------------------------------
226 // Construct a register class into which registers will be inserted
227 RegClass::RegClass(const char *classid) : _stack_or_reg(false), _classid(classid), _regDef(cmpstr,hashstr, Form::arena),
228 _user_defined(NULL)
229 {
230 }
231
232 // record a register in this class
233 void RegClass::addReg(RegDef *regDef) {
234 _regDefs.addName(regDef->_regname);
235 _regDef.Insert((void*)regDef->_regname, regDef);
236 }
237
238 // Number of registers in class
239 uint RegClass::size() const {
240 return _regDef.Size();
241 }
242
243 const RegDef *RegClass::get_RegDef(const char *rd_name) const {
244 return (const RegDef*)_regDef[rd_name];
245 }
246
247 void RegClass::reset() {
248 _regDefs.reset();
249 }
250
251 const char *RegClass::rd_name_iter() {
252 return _regDefs.iter();
253 }
254
255 RegDef *RegClass::RegDef_iter() {
256 const char *rd_name = rd_name_iter();
257 RegDef *reg_def = rd_name ? (RegDef*)_regDef[rd_name] : NULL;
258 return reg_def;
259 }
260
261 const RegDef* RegClass::find_first_elem() {
262 const RegDef* first = NULL;
263 const RegDef* def = NULL;
264
265 reset();
266 while ((def = RegDef_iter()) != NULL) {
267 if (first == NULL || def->register_num() < first->register_num()) {
268 first = def;
269 }
270 }
271
272 assert(first != NULL, "empty mask?");
273 return first;;
274 }
275
276 // Collect all the registers in this register-word. One bit per register.
277 int RegClass::regs_in_word( int wordnum, bool stack_also ) {
278 int word = 0;
279 const char *name;
280 for(_regDefs.reset(); (name = _regDefs.iter()) != NULL;) {
281 int rnum = ((RegDef*)_regDef[name])->register_num();
282 if( (rnum >> 5) == wordnum )
283 word |= (1 << (rnum & 31));
284 }
285 if( stack_also ) {
286 // Now also collect stack bits
287 for( int i = 0; i < 32; i++ )
288 if( wordnum*32+i >= RegisterForm::_reg_ctr )
289 word |= (1 << i);
290 }
291
292 return word;
293 }
294
295 void RegClass::dump() {
296 output(stderr);
297 }
298
299 void RegClass::output(FILE *fp) { // Write info to output files
300 fprintf(fp,"RegClass: %s\n",_classid);
301 const char *name;
302 for(_regDefs.reset(); (name = _regDefs.iter()) != NULL;) {
303 ((RegDef*)_regDef[name])->output(fp);
304 }
305 fprintf(fp,"--- done with entries for reg_class %s\n\n",_classid);
306 }
307
308
309 //------------------------------AllocClass-------------------------------------
310 AllocClass::AllocClass(char *classid) : _classid(classid), _regDef(cmpstr,hashstr, Form::arena) {
311 }
312
313 // record a register in this class
314 void AllocClass::addReg(RegDef *regDef) {
315 assert( regDef != NULL, "Can not add a NULL to an allocation class");
316 regDef->set_register_num( RegisterForm::_reg_ctr++ );
317 // Add regDef to this allocation class
318 _regDefs.addName(regDef->_regname);
319 _regDef.Insert((void*)regDef->_regname, regDef);
320 }
321
322 void AllocClass::dump() {
323 output(stderr);
324 }
325
326 void AllocClass::output(FILE *fp) { // Write info to output files
327 fprintf(fp,"AllocClass: %s \n",_classid);
328 const char *name;
329 for(_regDefs.reset(); (name = _regDefs.iter()) != NULL;) {
330 ((RegDef*)_regDef[name])->output(fp);
331 }
332 fprintf(fp,"--- done with entries for alloc_class %s\n\n",_classid);
333 }
334
335 //==============================Frame Handling=================================
336 //------------------------------FrameForm--------------------------------------
337 FrameForm::FrameForm() {
338 _frame_pointer = NULL;
339 _c_frame_pointer = NULL;
340 _alignment = NULL;
341 _return_addr = NULL;
342 _c_return_addr = NULL;
343 _in_preserve_slots = NULL;
344 _varargs_C_out_slots_killed = NULL;
345 _calling_convention = NULL;
346 _c_calling_convention = NULL;
347 _return_value = NULL;
348 _c_return_value = NULL;
349 _interpreter_frame_pointer_reg = NULL;
350 }
351
352 FrameForm::~FrameForm() {
353 }
354
355 void FrameForm::dump() {
356 output(stderr);
357 }
358
359 void FrameForm::output(FILE *fp) { // Write info to output files
360 fprintf(fp,"\nFrame:\n");
361 }
362
363 //==============================Scheduling=====================================
364 //------------------------------PipelineForm-----------------------------------
365 PipelineForm::PipelineForm()
366 : _reslist ()
367 , _resdict (cmpstr, hashstr, Form::arena)
368 , _classdict (cmpstr, hashstr, Form::arena)
369 , _rescount (0)
370 , _maxcycleused (0)
371 , _stages ()
372 , _stagecnt (0)
373 , _classlist ()
374 , _classcnt (0)
375 , _noplist ()
376 , _nopcnt (0)
377 , _variableSizeInstrs (false)
378 , _branchHasDelaySlot (false)
379 , _maxInstrsPerBundle (0)
380 , _maxBundlesPerCycle (1)
381 , _instrUnitSize (0)
382 , _bundleUnitSize (0)
383 , _instrFetchUnitSize (0)
384 , _instrFetchUnits (0) {
385 }
386 PipelineForm::~PipelineForm() {
387 }
388
389 void PipelineForm::dump() {
390 output(stderr);
391 }
392
393 void PipelineForm::output(FILE *fp) { // Write info to output files
394 const char *res;
395 const char *stage;
396 const char *cls;
397 const char *nop;
398 int count = 0;
399
400 fprintf(fp,"\nPipeline:");
401 if (_variableSizeInstrs)
402 if (_instrUnitSize > 0)
403 fprintf(fp," variable-sized instructions in %d byte units", _instrUnitSize);
404 else
405 fprintf(fp," variable-sized instructions");
406 else
407 if (_instrUnitSize > 0)
408 fprintf(fp," fixed-sized instructions of %d bytes", _instrUnitSize);
409 else if (_bundleUnitSize > 0)
410 fprintf(fp," fixed-sized bundles of %d bytes", _bundleUnitSize);
411 else
412 fprintf(fp," fixed-sized instructions");
413 if (_branchHasDelaySlot)
414 fprintf(fp,", branch has delay slot");
415 if (_maxInstrsPerBundle > 0)
416 fprintf(fp,", max of %d instruction%s in parallel",
417 _maxInstrsPerBundle, _maxInstrsPerBundle > 1 ? "s" : "");
418 if (_maxBundlesPerCycle > 0)
419 fprintf(fp,", max of %d bundle%s in parallel",
420 _maxBundlesPerCycle, _maxBundlesPerCycle > 1 ? "s" : "");
421 if (_instrFetchUnitSize > 0 && _instrFetchUnits)
422 fprintf(fp, ", fetch %d x % d bytes per cycle", _instrFetchUnits, _instrFetchUnitSize);
423
424 fprintf(fp,"\nResource:");
425 for ( _reslist.reset(); (res = _reslist.iter()) != NULL; )
426 fprintf(fp," %s(0x%08x)", res, _resdict[res]->is_resource()->mask());
427 fprintf(fp,"\n");
428
429 fprintf(fp,"\nDescription:\n");
430 for ( _stages.reset(); (stage = _stages.iter()) != NULL; )
431 fprintf(fp," %s(%d)", stage, count++);
432 fprintf(fp,"\n");
433
434 fprintf(fp,"\nClasses:\n");
435 for ( _classlist.reset(); (cls = _classlist.iter()) != NULL; )
436 _classdict[cls]->is_pipeclass()->output(fp);
437
438 fprintf(fp,"\nNop Instructions:");
439 for ( _noplist.reset(); (nop = _noplist.iter()) != NULL; )
440 fprintf(fp, " \"%s\"", nop);
441 fprintf(fp,"\n");
442 }
443
444
445 //------------------------------ResourceForm-----------------------------------
446 ResourceForm::ResourceForm(unsigned resmask)
447 : _resmask(resmask) {
448 }
449 ResourceForm::~ResourceForm() {
450 }
451
452 ResourceForm *ResourceForm::is_resource() const {
453 return (ResourceForm *)(this);
454 }
455
456 void ResourceForm::dump() {
457 output(stderr);
458 }
459
460 void ResourceForm::output(FILE *fp) { // Write info to output files
461 fprintf(fp, "resource: 0x%08x;\n", mask());
462 }
463
464
465 //------------------------------PipeClassOperandForm----------------------------------
466
467 void PipeClassOperandForm::dump() {
468 output(stderr);
469 }
470
471 void PipeClassOperandForm::output(FILE *fp) { // Write info to output files
472 fprintf(stderr,"PipeClassOperandForm: %s", _stage);
473 fflush(stderr);
474 if (_more_instrs > 0)
475 fprintf(stderr,"+%d", _more_instrs);
476 fprintf(stderr," (%s)\n", _iswrite ? "write" : "read");
477 fflush(stderr);
478 fprintf(fp,"PipeClassOperandForm: %s", _stage);
479 if (_more_instrs > 0)
480 fprintf(fp,"+%d", _more_instrs);
481 fprintf(fp," (%s)\n", _iswrite ? "write" : "read");
482 }
483
484
485 //------------------------------PipeClassResourceForm----------------------------------
486
487 void PipeClassResourceForm::dump() {
488 output(stderr);
489 }
490
491 void PipeClassResourceForm::output(FILE *fp) { // Write info to output files
492 fprintf(fp,"PipeClassResourceForm: %s at stage %s for %d cycles\n",
493 _resource, _stage, _cycles);
494 }
495
496
497 //------------------------------PipeClassForm----------------------------------
498 PipeClassForm::PipeClassForm(const char *id, int num)
499 : _ident(id)
500 , _num(num)
501 , _localNames(cmpstr, hashstr, Form::arena)
502 , _localUsage(cmpstr, hashstr, Form::arena)
503 , _has_fixed_latency(0)
504 , _fixed_latency(0)
505 , _instruction_count(0)
506 , _has_multiple_bundles(false)
507 , _has_branch_delay_slot(false)
508 , _force_serialization(false)
509 , _may_have_no_code(false) {
510 }
511
512 PipeClassForm::~PipeClassForm() {
513 }
514
515 PipeClassForm *PipeClassForm::is_pipeclass() const {
516 return (PipeClassForm *)(this);
517 }
518
519 void PipeClassForm::dump() {
520 output(stderr);
521 }
522
523 void PipeClassForm::output(FILE *fp) { // Write info to output files
524 fprintf(fp,"PipeClassForm: #%03d", _num);
525 if (_ident)
526 fprintf(fp," \"%s\":", _ident);
527 if (_has_fixed_latency)
528 fprintf(fp," latency %d", _fixed_latency);
529 if (_force_serialization)
530 fprintf(fp, ", force serialization");
531 if (_may_have_no_code)
532 fprintf(fp, ", may have no code");
533 fprintf(fp, ", %d instruction%s\n", InstructionCount(), InstructionCount() != 1 ? "s" : "");
534 }
535
536
537 //==============================Peephole Optimization==========================
538 int Peephole::_peephole_counter = 0;
539 //------------------------------Peephole---------------------------------------
540 Peephole::Peephole() : _match(NULL), _constraint(NULL), _replace(NULL), _next(NULL) {
541 _peephole_number = _peephole_counter++;
542 }
543 Peephole::~Peephole() {
544 }
545
546 // Append a peephole rule with the same root instruction
547 void Peephole::append_peephole(Peephole *next_peephole) {
548 if( _next == NULL ) {
549 _next = next_peephole;
550 } else {
551 _next->append_peephole( next_peephole );
552 }
553 }
554
555 // Store the components of this peephole rule
556 void Peephole::add_match(PeepMatch *match) {
557 assert( _match == NULL, "fatal()" );
558 _match = match;
559 }
560
561 void Peephole::append_constraint(PeepConstraint *next_constraint) {
562 if( _constraint == NULL ) {
563 _constraint = next_constraint;
564 } else {
565 _constraint->append( next_constraint );
566 }
567 }
568
569 void Peephole::add_replace(PeepReplace *replace) {
570 assert( _replace == NULL, "fatal()" );
571 _replace = replace;
572 }
573
574 // class Peephole accessor methods are in the declaration.
575
576
577 void Peephole::dump() {
578 output(stderr);
579 }
580
581 void Peephole::output(FILE *fp) { // Write info to output files
582 fprintf(fp,"Peephole:\n");
583 if( _match != NULL ) _match->output(fp);
584 if( _constraint != NULL ) _constraint->output(fp);
585 if( _replace != NULL ) _replace->output(fp);
586 // Output the next entry
587 if( _next ) _next->output(fp);
588 }
589
590 //------------------------------PeepMatch--------------------------------------
591 PeepMatch::PeepMatch(char *rule) : _max_position(0), _rule(rule) {
592 }
593 PeepMatch::~PeepMatch() {
594 }
595
596
597 // Insert info into the match-rule
598 void PeepMatch::add_instruction(int parent, int position, const char *name,
599 int input) {
600 if( position > _max_position ) _max_position = position;
601
602 _parent.addName((char*) (intptr_t) parent);
603 _position.addName((char*) (intptr_t) position);
604 _instrs.addName(name);
605 _input.addName((char*) (intptr_t) input);
606 }
607
608 // Access info about instructions in the peep-match rule
609 int PeepMatch::max_position() {
610 return _max_position;
611 }
612
613 const char *PeepMatch::instruction_name(int position) {
614 return _instrs.name(position);
615 }
616
617 // Iterate through all info on matched instructions
618 void PeepMatch::reset() {
619 _parent.reset();
620 _position.reset();
621 _instrs.reset();
622 _input.reset();
623 }
624
625 void PeepMatch::next_instruction(int &parent, int &position, const char* &name, int &input) {
626 parent = (int) (intptr_t) _parent.iter();
627 position = (int) (intptr_t) _position.iter();
628 name = _instrs.iter();
629 input = (int) (intptr_t) _input.iter();
630 }
631
632 // 'true' if current position in iteration is a placeholder, not matched.
633 bool PeepMatch::is_placeholder() {
634 return _instrs.current_is_signal();
635 }
636
637
638 void PeepMatch::dump() {
639 output(stderr);
640 }
641
642 void PeepMatch::output(FILE *fp) { // Write info to output files
643 fprintf(fp,"PeepMatch:\n");
644 }
645
646 //------------------------------PeepConstraint---------------------------------
647 PeepConstraint::PeepConstraint(int left_inst, char* left_op, char* relation,
648 int right_inst, char* right_op)
649 : _left_inst(left_inst), _left_op(left_op), _relation(relation),
650 _right_inst(right_inst), _right_op(right_op), _next(NULL) {}
651 PeepConstraint::~PeepConstraint() {
652 }
653
654 // Check if constraints use instruction at position
655 bool PeepConstraint::constrains_instruction(int position) {
656 // Check local instruction constraints
657 if( _left_inst == position ) return true;
658 if( _right_inst == position ) return true;
659
660 // Check remaining constraints in list
661 if( _next == NULL ) return false;
662 else return _next->constrains_instruction(position);
663 }
664
665 // Add another constraint
666 void PeepConstraint::append(PeepConstraint *next_constraint) {
667 if( _next == NULL ) {
668 _next = next_constraint;
669 } else {
670 _next->append( next_constraint );
671 }
672 }
673
674 // Access the next constraint in the list
675 PeepConstraint *PeepConstraint::next() {
676 return _next;
677 }
678
679
680 void PeepConstraint::dump() {
681 output(stderr);
682 }
683
684 void PeepConstraint::output(FILE *fp) { // Write info to output files
685 fprintf(fp,"PeepConstraint:\n");
686 }
687
688 //------------------------------PeepReplace------------------------------------
689 PeepReplace::PeepReplace(char *rule) : _rule(rule) {
690 }
691 PeepReplace::~PeepReplace() {
692 }
693
694 // Add contents of peepreplace
695 void PeepReplace::add_instruction(char *root) {
696 _instruction.addName(root);
697 _operand_inst_num.add_signal();
698 _operand_op_name.add_signal();
699 }
700 void PeepReplace::add_operand( int inst_num, char *inst_operand ) {
701 _instruction.add_signal();
702 _operand_inst_num.addName((char*) (intptr_t) inst_num);
703 _operand_op_name.addName(inst_operand);
704 }
705
706 // Access contents of peepreplace
707 void PeepReplace::reset() {
708 _instruction.reset();
709 _operand_inst_num.reset();
710 _operand_op_name.reset();
711 }
712 void PeepReplace::next_instruction(const char* &inst){
713 inst = _instruction.iter();
714 int inst_num = (int) (intptr_t) _operand_inst_num.iter();
715 const char* inst_operand = _operand_op_name.iter();
716 }
717 void PeepReplace::next_operand(int &inst_num, const char* &inst_operand) {
718 const char* inst = _instruction.iter();
719 inst_num = (int) (intptr_t) _operand_inst_num.iter();
720 inst_operand = _operand_op_name.iter();
721 }
722
723
724
725 void PeepReplace::dump() {
726 output(stderr);
727 }
728
729 void PeepReplace::output(FILE *fp) { // Write info to output files
730 fprintf(fp,"PeepReplace:\n");
731 }