source: src/CodeGen/CodeGenerator.cc@ f1e012b

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors ctor deferred_resn demangler enum forall-pointer-decay gc_noraii jacob/cs343-translation jenkins-sandbox memory new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new stuck-waitfor-destruct with_gc
Last change on this file since f1e012b was f1e012b, checked in by Rob Schluntz <rschlunt@…>, 10 years ago

added intrinsic ctor/dtors to prelude, modified MakeLibCfa to build prelude ctor/dtors, added ctor/dtor to polymorphic object type constraints, rudimentary fallback on initializer nodes if chosen ctor is intrinsic, remove intrinsic destructor statements to reduce output pollution
  • Property mode set to 100644
File size: 20.7 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// CodeGenerator.cc --
8//
9// Author : Richard C. Bilson
10// Created On : Mon May 18 07:44:20 2015
11// Last Modified By : Rob Schluntz
12// Last Modified On : Tue Jan 19 13:15:44 2016
13// Update Count : 251
14//
15
16#include <algorithm>
17#include <iostream>
18#include <cassert>
19#include <list>
20
21#include "Parser/ParseNode.h"
22
23#include "SynTree/Type.h"
24#include "SynTree/Expression.h"
25#include "SynTree/Initializer.h"
26#include "SynTree/Statement.h"
27
28#include "utility.h"
29#include "UnimplementedError.h"
30
31#include "CodeGenerator.h"
32#include "OperatorTable.h"
33#include "GenType.h"
34
35using namespace std;
36
37namespace CodeGen {
38 int CodeGenerator::tabsize = 4;
39
40 // the kinds of statements that would ideally be followed by whitespace
41 bool wantSpacing( Statement * stmt) {
42 return dynamic_cast< IfStmt * >( stmt ) || dynamic_cast< CompoundStmt * >( stmt ) ||
43 dynamic_cast< WhileStmt * >( stmt ) || dynamic_cast< ForStmt * > ( stmt ) || dynamic_cast< SwitchStmt *>( stmt );
44 }
45
46 ostream & CodeGenerator::Indenter::operator()( ostream & output ) {
47 return output << string( cg.cur_indent, ' ' );
48 }
49
50 ostream & operator<<( ostream & output, CodeGenerator::Indenter &indent ) {
51 return indent( output );
52 }
53
54 CodeGenerator::CodeGenerator( std::ostream &os ) : indent( *this), cur_indent( 0 ), insideFunction( false ), output( os ) { }
55
56 CodeGenerator::CodeGenerator( std::ostream &os, std::string init, int indentation, bool infunp )
57 : indent( *this), cur_indent( indentation ), insideFunction( infunp ), output( os ) {
58 //output << std::string( init );
59 }
60
61 CodeGenerator::CodeGenerator( std::ostream &os, char *init, int indentation, bool infunp )
62 : indent( *this ), cur_indent( indentation ), insideFunction( infunp ), output( os ) {
63 //output << std::string( init );
64 }
65
66 string mangleName( DeclarationWithType *decl ) {
67 if ( decl->get_mangleName() != "" ) {
68 return decl->get_mangleName();
69 } else {
70 return decl->get_name();
71 } // if
72 }
73
74 //*** Declarations
75 void CodeGenerator::visit( FunctionDecl *functionDecl ) {
76 handleStorageClass( functionDecl );
77 if ( functionDecl->get_isInline() ) {
78 output << "inline ";
79 } // if
80 if ( functionDecl->get_isNoreturn() ) {
81 output << "_Noreturn ";
82 } // if
83 output << genType( functionDecl->get_functionType(), mangleName( functionDecl ) );
84
85 // how to get this to the Functype?
86 std::list< Declaration * > olds = functionDecl->get_oldDecls();
87 if ( ! olds.empty() ) {
88 output << " /* function has old declaration */";
89 } // if
90
91 // acceptAll( functionDecl->get_oldDecls(), *this );
92 if ( functionDecl->get_statements() ) {
93 functionDecl->get_statements()->accept( *this );
94 } // if
95 }
96
97 void CodeGenerator::visit( ObjectDecl *objectDecl ) {
98 handleStorageClass( objectDecl );
99 output << genType( objectDecl->get_type(), mangleName( objectDecl ) );
100
101 if ( objectDecl->get_init() ) {
102 output << " = ";
103 objectDecl->get_init()->accept( *this );
104 } // if
105 if ( objectDecl->get_bitfieldWidth() ) {
106 output << ":";
107 objectDecl->get_bitfieldWidth()->accept( *this );
108 } // if
109 }
110
111 void CodeGenerator::handleAggregate( AggregateDecl *aggDecl ) {
112 if ( aggDecl->get_name() != "" )
113 output << aggDecl->get_name();
114
115 std::list< Declaration * > &memb = aggDecl->get_members();
116
117 if ( ! memb.empty() ) {
118 output << " {" << endl;
119
120 cur_indent += CodeGenerator::tabsize;
121 for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++) {
122 output << indent;
123 (*i)->accept( *this );
124 output << ";" << endl;
125 }
126
127 cur_indent -= CodeGenerator::tabsize;
128
129 output << indent << "}";
130 } // if
131 }
132
133 void CodeGenerator::visit( StructDecl *structDecl ) {
134 output << "struct ";
135 handleAggregate( structDecl );
136 }
137
138 void CodeGenerator::visit( UnionDecl *aggregateDecl ) {
139 output << "union ";
140 handleAggregate( aggregateDecl );
141 }
142
143 void CodeGenerator::visit( EnumDecl *aggDecl ) {
144 output << "enum ";
145
146 if ( aggDecl->get_name() != "" )
147 output << aggDecl->get_name();
148
149 std::list< Declaration* > &memb = aggDecl->get_members();
150
151 if ( ! memb.empty() ) {
152 output << " {" << endl;
153
154 cur_indent += CodeGenerator::tabsize;
155 for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++) {
156 ObjectDecl *obj = dynamic_cast< ObjectDecl* >( *i );
157 assert( obj );
158 output << indent << mangleName( obj );
159 if ( obj->get_init() ) {
160 output << " = ";
161 obj->get_init()->accept( *this );
162 } // if
163 output << "," << endl;
164 } // for
165
166 cur_indent -= CodeGenerator::tabsize;
167
168 output << indent << "}";
169 } // if
170 }
171
172 void CodeGenerator::visit( ContextDecl *aggregateDecl ) {}
173
174 void CodeGenerator::visit( TypedefDecl *typeDecl ) {
175 output << "typedef ";
176 output << genType( typeDecl->get_base(), typeDecl->get_name() );
177 }
178
179 void CodeGenerator::visit( TypeDecl *typeDecl ) {
180 // really, we should mutate this into something that isn't a TypeDecl but that requires large-scale changes,
181 // still to be done
182 output << "extern unsigned long " << typeDecl->get_name();
183 if ( typeDecl->get_base() ) {
184 output << " = sizeof( " << genType( typeDecl->get_base(), "" ) << " )";
185 } // if
186 }
187
188 void CodeGenerator::printDesignators( std::list< Expression * > & designators ) {
189 typedef std::list< Expression * > DesignatorList;
190 if ( designators.size() == 0 ) return;
191 for ( DesignatorList::iterator iter = designators.begin(); iter != designators.end(); ++iter ) {
192 if ( dynamic_cast< NameExpr * >( *iter ) ) {
193 // if expression is a name, then initializing aggregate member
194 output << ".";
195 (*iter)->accept( *this );
196 } else {
197 // if not a simple name, it has to be a constant expression, i.e. an array designator
198 output << "[";
199 (*iter)->accept( *this );
200 output << "]";
201 }
202 }
203 output << " = ";
204 }
205
206 void CodeGenerator::visit( SingleInit *init ) {
207 printDesignators( init->get_designators() );
208 init->get_value()->accept( *this );
209 }
210
211 void CodeGenerator::visit( ListInit *init ) {
212 printDesignators( init->get_designators() );
213 output << "{ ";
214 genCommaList( init->begin_initializers(), init->end_initializers() );
215 output << " }";
216 }
217
218 void CodeGenerator::visit( Constant *constant ) {
219 output << constant->get_value() ;
220 }
221
222 //*** Expressions
223 void CodeGenerator::visit( ApplicationExpr *applicationExpr ) {
224 if ( VariableExpr *varExpr = dynamic_cast< VariableExpr* >( applicationExpr->get_function() ) ) {
225 OperatorInfo opInfo;
226 if ( varExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( varExpr->get_var()->get_name(), opInfo ) ) {
227 std::list< Expression* >::iterator arg = applicationExpr->get_args().begin();
228 switch ( opInfo.type ) {
229 case OT_PREFIXASSIGN:
230 case OT_POSTFIXASSIGN:
231 case OT_INFIXASSIGN:
232 {
233 assert( arg != applicationExpr->get_args().end() );
234 if ( AddressExpr *addrExpr = dynamic_cast< AddressExpr * >( *arg ) ) {
235
236 *arg = addrExpr->get_arg();
237 } else {
238 UntypedExpr *newExpr = new UntypedExpr( new NameExpr( "*?" ) );
239 newExpr->get_args().push_back( *arg );
240 *arg = newExpr;
241 } // if
242 break;
243 }
244
245 default:
246 // do nothing
247 ;
248 }
249
250 switch ( opInfo.type ) {
251 case OT_INDEX:
252 assert( applicationExpr->get_args().size() == 2 );
253 (*arg++)->accept( *this );
254 output << "[";
255 (*arg)->accept( *this );
256 output << "]";
257 break;
258
259 case OT_CALL:
260 // there are no intrinsic definitions of the function call operator or constructors or destructors
261 assert( false );
262 break;
263
264 case OT_CTOR:
265 // intrinsic constructors should never be called directly - they should be transformed back into Initializer nodes
266 assert(false);
267 break;
268
269 case OT_DTOR:
270 // intrinsic destructors do nothing - don't generate any code
271 output << " // " << dynamic_cast<VariableExpr*>(applicationExpr->get_function())->get_var()->get_name() << endl;
272 break;
273
274 case OT_PREFIX:
275 case OT_PREFIXASSIGN:
276 assert( applicationExpr->get_args().size() == 1 );
277 output << "(";
278 output << opInfo.symbol;
279 (*arg)->accept( *this );
280 output << ")";
281 break;
282
283 case OT_POSTFIX:
284 case OT_POSTFIXASSIGN:
285 assert( applicationExpr->get_args().size() == 1 );
286 (*arg)->accept( *this );
287 output << opInfo.symbol;
288 break;
289
290
291 case OT_INFIX:
292 case OT_INFIXASSIGN:
293 assert( applicationExpr->get_args().size() == 2 );
294 output << "(";
295 (*arg++)->accept( *this );
296 output << opInfo.symbol;
297 (*arg)->accept( *this );
298 output << ")";
299 break;
300
301 case OT_CONSTANT:
302 case OT_LABELADDRESS:
303 // there are no intrinsic definitions of 0/1 or label addresses as functions
304 assert( false );
305 }
306 } else {
307 varExpr->accept( *this );
308 output << "(";
309 genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() );
310 output << ")";
311 } // if
312 } else {
313 applicationExpr->get_function()->accept( *this );
314 output << "(";
315 genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() );
316 output << ")";
317 } // if
318 }
319
320 void CodeGenerator::visit( UntypedExpr *untypedExpr ) {
321 if ( NameExpr *nameExpr = dynamic_cast< NameExpr* >( untypedExpr->get_function() ) ) {
322 OperatorInfo opInfo;
323 if ( operatorLookup( nameExpr->get_name(), opInfo ) ) {
324 std::list< Expression* >::iterator arg = untypedExpr->get_args().begin();
325 switch ( opInfo.type ) {
326 case OT_INDEX:
327 assert( untypedExpr->get_args().size() == 2 );
328 (*arg++)->accept( *this );
329 output << "[";
330 (*arg)->accept( *this );
331 output << "]";
332 break;
333
334 case OT_CALL:
335 assert( false );
336
337 case OT_CTOR:
338 case OT_DTOR:
339 // intrinsic constructors should never be called
340 // intrinsic destructors do nothing
341 break;
342
343 case OT_PREFIX:
344 case OT_PREFIXASSIGN:
345 case OT_LABELADDRESS:
346 assert( untypedExpr->get_args().size() == 1 );
347 output << "(";
348 output << opInfo.symbol;
349 (*arg)->accept( *this );
350 output << ")";
351 break;
352
353 case OT_POSTFIX:
354 case OT_POSTFIXASSIGN:
355 assert( untypedExpr->get_args().size() == 1 );
356 (*arg)->accept( *this );
357 output << opInfo.symbol;
358 break;
359
360 case OT_INFIX:
361 case OT_INFIXASSIGN:
362 assert( untypedExpr->get_args().size() == 2 );
363 output << "(";
364 (*arg++)->accept( *this );
365 output << opInfo.symbol;
366 (*arg)->accept( *this );
367 output << ")";
368 break;
369
370 case OT_CONSTANT:
371 // there are no intrinsic definitions of 0 or 1 as functions
372 assert( false );
373 }
374 } else {
375 nameExpr->accept( *this );
376 output << "(";
377 genCommaList( untypedExpr->get_args().begin(), untypedExpr->get_args().end() );
378 output << ")";
379 } // if
380 } else {
381 untypedExpr->get_function()->accept( *this );
382 output << "(";
383 genCommaList( untypedExpr->get_args().begin(), untypedExpr->get_args().end() );
384 output << ")";
385 } // if
386 }
387
388 void CodeGenerator::visit( NameExpr *nameExpr ) {
389 OperatorInfo opInfo;
390 if ( operatorLookup( nameExpr->get_name(), opInfo ) ) {
391 assert( opInfo.type == OT_CONSTANT );
392 output << opInfo.symbol;
393 } else {
394 output << nameExpr->get_name();
395 } // if
396 }
397
398 void CodeGenerator::visit( AddressExpr *addressExpr ) {
399 output << "(&";
400 // this hack makes sure that we don't convert "constant_zero" to "0" if we're taking its address
401 if ( VariableExpr *variableExpr = dynamic_cast< VariableExpr* >( addressExpr->get_arg() ) ) {
402 output << mangleName( variableExpr->get_var() );
403 } else {
404 addressExpr->get_arg()->accept( *this );
405 } // if
406 output << ")";
407 }
408
409 void CodeGenerator::visit( CastExpr *castExpr ) {
410 // if the cast is to an lvalue type, then the cast
411 // should be dropped, since the result of a cast is
412 // never an lvalue in C
413 if ( castExpr->get_results().front()->get_isLvalue() ) {
414 castExpr->get_arg()->accept( *this );
415 } else {
416 output << "((";
417 if ( castExpr->get_results().empty() ) {
418 output << "void" ;
419 } else {
420 output << genType( castExpr->get_results().front(), "" );
421 } // if
422 output << ")";
423 castExpr->get_arg()->accept( *this );
424 output << ")";
425 }
426 }
427
428 void CodeGenerator::visit( UntypedMemberExpr *memberExpr ) {
429 assert( false );
430 }
431
432 void CodeGenerator::visit( MemberExpr *memberExpr ) {
433 memberExpr->get_aggregate()->accept( *this );
434 output << "." << mangleName( memberExpr->get_member() );
435 }
436
437 void CodeGenerator::visit( VariableExpr *variableExpr ) {
438 OperatorInfo opInfo;
439 if ( variableExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( variableExpr->get_var()->get_name(), opInfo ) && opInfo.type == OT_CONSTANT ) {
440 output << opInfo.symbol;
441 } else {
442 output << mangleName( variableExpr->get_var() );
443 } // if
444 }
445
446 void CodeGenerator::visit( ConstantExpr *constantExpr ) {
447 assert( constantExpr->get_constant() );
448 constantExpr->get_constant()->accept( *this );
449 }
450
451 void CodeGenerator::visit( SizeofExpr *sizeofExpr ) {
452 output << "sizeof(";
453 if ( sizeofExpr->get_isType() ) {
454 output << genType( sizeofExpr->get_type(), "" );
455 } else {
456 sizeofExpr->get_expr()->accept( *this );
457 } // if
458 output << ")";
459 }
460
461 void CodeGenerator::visit( AlignofExpr *sizeofExpr ) {
462 // use GCC extension to avoid bumping std to C11
463 output << "__alignof__(";
464 if ( sizeofExpr->get_isType() ) {
465 output << genType( sizeofExpr->get_type(), "" );
466 } else {
467 sizeofExpr->get_expr()->accept( *this );
468 } // if
469 output << ")";
470 }
471
472 void CodeGenerator::visit( LogicalExpr *logicalExpr ) {
473 output << "(";
474 logicalExpr->get_arg1()->accept( *this );
475 if ( logicalExpr->get_isAnd() ) {
476 output << " && ";
477 } else {
478 output << " || ";
479 } // if
480 logicalExpr->get_arg2()->accept( *this );
481 output << ")";
482 }
483
484 void CodeGenerator::visit( ConditionalExpr *conditionalExpr ) {
485 output << "(";
486 conditionalExpr->get_arg1()->accept( *this );
487 output << " ? ";
488 conditionalExpr->get_arg2()->accept( *this );
489 output << " : ";
490 conditionalExpr->get_arg3()->accept( *this );
491 output << ")";
492 }
493
494 void CodeGenerator::visit( CommaExpr *commaExpr ) {
495 output << "(";
496 commaExpr->get_arg1()->accept( *this );
497 output << " , ";
498 commaExpr->get_arg2()->accept( *this );
499 output << ")";
500 }
501
502 void CodeGenerator::visit( TupleExpr *tupleExpr ) {}
503
504 void CodeGenerator::visit( TypeExpr *typeExpr ) {}
505
506 void CodeGenerator::visit( AsmExpr *asmExpr ) {
507 if ( asmExpr->get_inout() ) {
508 output << "[ ";
509 asmExpr->get_inout()->accept( *this );
510 output << " ] ";
511 } // if
512 asmExpr->get_constraint()->accept( *this );
513 output << " ( ";
514 asmExpr->get_operand()->accept( *this );
515 output << " )";
516 }
517
518 //*** Statements
519 void CodeGenerator::visit( CompoundStmt *compoundStmt ) {
520 std::list<Statement*> ks = compoundStmt->get_kids();
521 output << "{" << endl;
522
523 cur_indent += CodeGenerator::tabsize;
524
525 for ( std::list<Statement *>::iterator i = ks.begin(); i != ks.end(); i++ ) {
526 output << indent << printLabels( (*i)->get_labels() );
527 (*i)->accept( *this );
528
529 output << endl;
530 if ( wantSpacing( *i ) ) {
531 output << endl;
532 }
533 }
534 cur_indent -= CodeGenerator::tabsize;
535
536 output << indent << "}";
537 }
538
539 void CodeGenerator::visit( ExprStmt *exprStmt ) {
540 // I don't see why this check is necessary.
541 // If this starts to cause problems then put it back in,
542 // with an explanation
543 assert( exprStmt );
544
545 // if ( exprStmt != 0 ) {
546 exprStmt->get_expr()->accept( *this );
547 output << ";" ;
548 // } // if
549 }
550
551 void CodeGenerator::visit( AsmStmt *asmStmt ) {
552 output << "asm ";
553 if ( asmStmt->get_voltile() ) output << "volatile ";
554 if ( ! asmStmt->get_gotolabels().empty() ) output << "goto ";
555 output << "( ";
556 if ( asmStmt->get_instruction() ) asmStmt->get_instruction()->accept( *this );
557 output << " : ";
558 genCommaList( asmStmt->get_output().begin(), asmStmt->get_output().end() );
559 output << " : ";
560 genCommaList( asmStmt->get_input().begin(), asmStmt->get_input().end() );
561 output << " : ";
562 genCommaList( asmStmt->get_clobber().begin(), asmStmt->get_clobber().end() );
563 if ( ! asmStmt->get_gotolabels().empty() ) {
564 output << " : ";
565 for ( std::list<Label>::iterator begin = asmStmt->get_gotolabels().begin();; ) {
566 output << *begin++;
567 if ( begin == asmStmt->get_gotolabels().end() ) break;
568 output << ", ";
569 } // for
570 } // if
571 output << " );" ;
572 }
573
574 void CodeGenerator::visit( IfStmt *ifStmt ) {
575 output << "if ( ";
576 ifStmt->get_condition()->accept( *this );
577 output << " ) ";
578
579 ifStmt->get_thenPart()->accept( *this );
580
581 if ( ifStmt->get_elsePart() != 0) {
582 output << " else ";
583 ifStmt->get_elsePart()->accept( *this );
584 } // if
585 }
586
587 void CodeGenerator::visit( SwitchStmt *switchStmt ) {
588 output << "switch ( " ;
589 switchStmt->get_condition()->accept( *this );
590 output << " ) ";
591
592 output << "{" << std::endl;
593 cur_indent += CodeGenerator::tabsize;
594
595 acceptAll( switchStmt->get_branches(), *this );
596
597 cur_indent -= CodeGenerator::tabsize;
598
599 output << indent << "}";
600 }
601
602 void CodeGenerator::visit( CaseStmt *caseStmt ) {
603 output << indent;
604 if ( caseStmt->isDefault()) {
605 output << "default";
606 } else {
607 output << "case ";
608 caseStmt->get_condition()->accept( *this );
609 } // if
610 output << ":\n";
611
612 std::list<Statement *> sts = caseStmt->get_statements();
613
614 cur_indent += CodeGenerator::tabsize;
615 for ( std::list<Statement *>::iterator i = sts.begin(); i != sts.end(); i++) {
616 output << indent << printLabels( (*i)->get_labels() ) ;
617 (*i)->accept( *this );
618 output << endl;
619 }
620 cur_indent -= CodeGenerator::tabsize;
621 }
622
623 void CodeGenerator::visit( BranchStmt *branchStmt ) {
624 switch ( branchStmt->get_type()) {
625 case BranchStmt::Goto:
626 if ( ! branchStmt->get_target().empty() )
627 output << "goto " << branchStmt->get_target();
628 else {
629 if ( branchStmt->get_computedTarget() != 0 ) {
630 output << "goto *";
631 branchStmt->get_computedTarget()->accept( *this );
632 } // if
633 } // if
634 break;
635 case BranchStmt::Break:
636 output << "break";
637 break;
638 case BranchStmt::Continue:
639 output << "continue";
640 break;
641 }
642 output << ";";
643 }
644
645
646 void CodeGenerator::visit( ReturnStmt *returnStmt ) {
647 output << "return ";
648
649 // xxx -- check for null expression;
650 if ( returnStmt->get_expr() ) {
651 returnStmt->get_expr()->accept( *this );
652 } // if
653 output << ";";
654 }
655
656 void CodeGenerator::visit( WhileStmt *whileStmt ) {
657 if ( whileStmt->get_isDoWhile() )
658 output << "do" ;
659 else {
660 output << "while (" ;
661 whileStmt->get_condition()->accept( *this );
662 output << ")";
663 } // if
664 output << " ";
665
666 output << CodeGenerator::printLabels( whileStmt->get_body()->get_labels() );
667 whileStmt->get_body()->accept( *this );
668
669 output << indent;
670
671 if ( whileStmt->get_isDoWhile() ) {
672 output << " while (" ;
673 whileStmt->get_condition()->accept( *this );
674 output << ");";
675 } // if
676 }
677
678 void CodeGenerator::visit( ForStmt *forStmt ) {
679 // initialization is always hoisted, so don't
680 // bother doing anything with that
681 output << "for (;";
682
683 if ( forStmt->get_condition() != 0 )
684 forStmt->get_condition()->accept( *this );
685 output << ";";
686
687 if ( forStmt->get_increment() != 0 )
688 forStmt->get_increment()->accept( *this );
689 output << ") ";
690
691 if ( forStmt->get_body() != 0 ) {
692 output << CodeGenerator::printLabels( forStmt->get_body()->get_labels() );
693 forStmt->get_body()->accept( *this );
694 } // if
695 }
696
697 void CodeGenerator::visit( NullStmt *nullStmt ) {
698 //output << indent << CodeGenerator::printLabels( nullStmt->get_labels() );
699 output << "/* null statement */ ;";
700 }
701
702 void CodeGenerator::visit( DeclStmt *declStmt ) {
703 declStmt->get_decl()->accept( *this );
704
705 if ( doSemicolon( declStmt->get_decl() ) ) {
706 output << ";";
707 } // if
708 }
709
710 std::string CodeGenerator::printLabels( std::list< Label > &l ) {
711 std::string str( "" );
712 l.unique(); // assumes a sorted list. Why not use set?
713
714 for ( std::list< Label >::iterator i = l.begin(); i != l.end(); i++ )
715 str += *i + ": ";
716
717 return str;
718 }
719
720 void CodeGenerator::handleStorageClass( Declaration *decl ) {
721 switch ( decl->get_storageClass() ) {
722 case DeclarationNode::Extern:
723 output << "extern ";
724 break;
725 case DeclarationNode::Static:
726 output << "static ";
727 break;
728 case DeclarationNode::Auto:
729 // silently drop storage class
730 break;
731 case DeclarationNode::Register:
732 output << "register ";
733 break;
734 case DeclarationNode::Inline:
735 output << "inline ";
736 break;
737 case DeclarationNode::Fortran:
738 output << "fortran ";
739 break;
740 case DeclarationNode::Noreturn:
741 output << "_Noreturn ";
742 break;
743 case DeclarationNode::Threadlocal:
744 output << "_Thread_local ";
745 break;
746 case DeclarationNode::NoStorageClass:
747 break;
748 } // switch
749 }
750} // namespace CodeGen
751
752// Local Variables: //
753// tab-width: 4 //
754// mode: c++ //
755// compile-command: "make install" //
756// End: //
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