source: src/CodeGen/CodeGenerator.cc@ 37f0da8

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 string with_gc
Last change on this file since 37f0da8 was afc1045, checked in by Aaron Moss <a3moss@…>, 9 years ago

Hoist OffsetPackExpr to top level expression
  • Property mode set to 100644
File size: 20.8 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 : Peter A. Buhr
12// Last Modified On : Wed Mar 2 17:32:16 2016
13// Update Count : 243
14//
15
16#include <algorithm>
17#include <iostream>
18#include <cassert>
19#include <list>
20
21#include "Parser/ParseNode.h"
22
23#include "SynTree/Declaration.h"
24#include "SynTree/Expression.h"
25#include "SynTree/Initializer.h"
26#include "SynTree/Statement.h"
27#include "SynTree/Type.h"
28
29#include "Common/utility.h"
30#include "Common/UnimplementedError.h"
31
32#include "CodeGenerator.h"
33#include "OperatorTable.h"
34#include "GenType.h"
35
36using namespace std;
37
38namespace CodeGen {
39 int CodeGenerator::tabsize = 4;
40
41 // the kinds of statements that would ideally be followed by whitespace
42 bool wantSpacing( Statement * stmt) {
43 return dynamic_cast< IfStmt * >( stmt ) || dynamic_cast< CompoundStmt * >( stmt ) ||
44 dynamic_cast< WhileStmt * >( stmt ) || dynamic_cast< ForStmt * > ( stmt ) || dynamic_cast< SwitchStmt *>( stmt );
45 }
46
47 ostream & CodeGenerator::Indenter::operator()( ostream & output ) {
48 return output << string( cg.cur_indent, ' ' );
49 }
50
51 ostream & operator<<( ostream & output, CodeGenerator::Indenter &indent ) {
52 return indent( output );
53 }
54
55 CodeGenerator::CodeGenerator( std::ostream &os ) : indent( *this), cur_indent( 0 ), insideFunction( false ), output( os ) { }
56
57 CodeGenerator::CodeGenerator( std::ostream &os, std::string init, int indentation, bool infunp )
58 : indent( *this), cur_indent( indentation ), insideFunction( infunp ), output( os ) {
59 //output << std::string( init );
60 }
61
62 CodeGenerator::CodeGenerator( std::ostream &os, char *init, int indentation, bool infunp )
63 : indent( *this ), cur_indent( indentation ), insideFunction( infunp ), output( os ) {
64 //output << std::string( init );
65 }
66
67 string mangleName( DeclarationWithType *decl ) {
68 if ( decl->get_mangleName() != "" ) {
69 return decl->get_mangleName();
70 } else {
71 return decl->get_name();
72 } // if
73 }
74
75 //*** Declarations
76 void CodeGenerator::visit( FunctionDecl *functionDecl ) {
77 handleStorageClass( functionDecl );
78 if ( functionDecl->get_isInline() ) {
79 output << "inline ";
80 } // if
81 if ( functionDecl->get_isNoreturn() ) {
82 output << "_Noreturn ";
83 } // if
84 output << genType( functionDecl->get_functionType(), mangleName( functionDecl ) );
85
86 // how to get this to the Functype?
87 std::list< Declaration * > olds = functionDecl->get_oldDecls();
88 if ( ! olds.empty() ) {
89 output << " /* function has old declaration */";
90 } // if
91
92 // acceptAll( functionDecl->get_oldDecls(), *this );
93 if ( functionDecl->get_statements() ) {
94 functionDecl->get_statements()->accept( *this );
95 } // if
96 }
97
98 void CodeGenerator::visit( ObjectDecl *objectDecl ) {
99 handleStorageClass( objectDecl );
100 output << genType( objectDecl->get_type(), mangleName( objectDecl ) );
101
102 if ( objectDecl->get_init() ) {
103 output << " = ";
104 objectDecl->get_init()->accept( *this );
105 } // if
106 if ( objectDecl->get_bitfieldWidth() ) {
107 output << ":";
108 objectDecl->get_bitfieldWidth()->accept( *this );
109 } // if
110 }
111
112 void CodeGenerator::handleAggregate( AggregateDecl *aggDecl ) {
113 if ( aggDecl->get_name() != "" )
114 output << aggDecl->get_name();
115
116 std::list< Declaration * > &memb = aggDecl->get_members();
117
118 if ( ! memb.empty() ) {
119 output << " {" << endl;
120
121 cur_indent += CodeGenerator::tabsize;
122 for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++) {
123 output << indent;
124 (*i)->accept( *this );
125 output << ";" << endl;
126 }
127
128 cur_indent -= CodeGenerator::tabsize;
129
130 output << indent << "}";
131 } // if
132 }
133
134 void CodeGenerator::visit( StructDecl *structDecl ) {
135 output << "struct ";
136 handleAggregate( structDecl );
137 }
138
139 void CodeGenerator::visit( UnionDecl *aggregateDecl ) {
140 output << "union ";
141 handleAggregate( aggregateDecl );
142 }
143
144 void CodeGenerator::visit( EnumDecl *aggDecl ) {
145 output << "enum ";
146
147 if ( aggDecl->get_name() != "" )
148 output << aggDecl->get_name();
149
150 std::list< Declaration* > &memb = aggDecl->get_members();
151
152 if ( ! memb.empty() ) {
153 output << " {" << endl;
154
155 cur_indent += CodeGenerator::tabsize;
156 for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++) {
157 ObjectDecl *obj = dynamic_cast< ObjectDecl* >( *i );
158 assert( obj );
159 output << indent << mangleName( obj );
160 if ( obj->get_init() ) {
161 output << " = ";
162 obj->get_init()->accept( *this );
163 } // if
164 output << "," << endl;
165 } // for
166
167 cur_indent -= CodeGenerator::tabsize;
168
169 output << indent << "}";
170 } // if
171 }
172
173 void CodeGenerator::visit( TraitDecl *aggregateDecl ) {}
174
175 void CodeGenerator::visit( TypedefDecl *typeDecl ) {
176 output << "typedef ";
177 output << genType( typeDecl->get_base(), typeDecl->get_name() );
178 }
179
180 void CodeGenerator::visit( TypeDecl *typeDecl ) {
181 // really, we should mutate this into something that isn't a TypeDecl but that requires large-scale changes,
182 // still to be done
183 output << "extern unsigned long " << typeDecl->get_name();
184 if ( typeDecl->get_base() ) {
185 output << " = sizeof( " << genType( typeDecl->get_base(), "" ) << " )";
186 } // if
187 }
188
189 void CodeGenerator::printDesignators( std::list< Expression * > & designators ) {
190 typedef std::list< Expression * > DesignatorList;
191 if ( designators.size() == 0 ) return;
192 for ( DesignatorList::iterator iter = designators.begin(); iter != designators.end(); ++iter ) {
193 if ( dynamic_cast< NameExpr * >( *iter ) ) {
194 // if expression is a name, then initializing aggregate member
195 output << ".";
196 (*iter)->accept( *this );
197 } else {
198 // if not a simple name, it has to be a constant expression, i.e. an array designator
199 output << "[";
200 (*iter)->accept( *this );
201 output << "]";
202 }
203 }
204 output << " = ";
205 }
206
207 void CodeGenerator::visit( SingleInit *init ) {
208 printDesignators( init->get_designators() );
209 init->get_value()->accept( *this );
210 }
211
212 void CodeGenerator::visit( ListInit *init ) {
213 printDesignators( init->get_designators() );
214 output << "{ ";
215 genCommaList( init->begin_initializers(), init->end_initializers() );
216 output << " }";
217 }
218
219 void CodeGenerator::visit( Constant *constant ) {
220 output << constant->get_value() ;
221 }
222
223 //*** Expressions
224 void CodeGenerator::visit( ApplicationExpr *applicationExpr ) {
225 if ( VariableExpr *varExpr = dynamic_cast< VariableExpr* >( applicationExpr->get_function() ) ) {
226 OperatorInfo opInfo;
227 if ( varExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( varExpr->get_var()->get_name(), opInfo ) ) {
228 std::list< Expression* >::iterator arg = applicationExpr->get_args().begin();
229 switch ( opInfo.type ) {
230 case OT_PREFIXASSIGN:
231 case OT_POSTFIXASSIGN:
232 case OT_INFIXASSIGN:
233 {
234 assert( arg != applicationExpr->get_args().end() );
235 if ( AddressExpr *addrExpr = dynamic_cast< AddressExpr * >( *arg ) ) {
236
237 *arg = addrExpr->get_arg();
238 } else {
239 UntypedExpr *newExpr = new UntypedExpr( new NameExpr( "*?" ) );
240 newExpr->get_args().push_back( *arg );
241 *arg = newExpr;
242 } // if
243 break;
244 }
245
246 default:
247 // do nothing
248 ;
249 }
250
251 switch ( opInfo.type ) {
252 case OT_INDEX:
253 assert( applicationExpr->get_args().size() == 2 );
254 (*arg++)->accept( *this );
255 output << "[";
256 (*arg)->accept( *this );
257 output << "]";
258 break;
259
260 case OT_CALL:
261 // there are no intrinsic definitions of the function call operator
262 assert( false );
263 break;
264
265 case OT_PREFIX:
266 case OT_PREFIXASSIGN:
267 assert( applicationExpr->get_args().size() == 1 );
268 output << "(";
269 output << opInfo.symbol;
270 (*arg)->accept( *this );
271 output << ")";
272 break;
273
274 case OT_POSTFIX:
275 case OT_POSTFIXASSIGN:
276 assert( applicationExpr->get_args().size() == 1 );
277 (*arg)->accept( *this );
278 output << opInfo.symbol;
279 break;
280
281 case OT_INFIX:
282 case OT_INFIXASSIGN:
283 assert( applicationExpr->get_args().size() == 2 );
284 output << "(";
285 (*arg++)->accept( *this );
286 output << opInfo.symbol;
287 (*arg)->accept( *this );
288 output << ")";
289 break;
290
291 case OT_CONSTANT:
292 case OT_LABELADDRESS:
293 // there are no intrinsic definitions of 0/1 or label addresses as functions
294 assert( false );
295 }
296 } else {
297 varExpr->accept( *this );
298 output << "(";
299 genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() );
300 output << ")";
301 } // if
302 } else {
303 applicationExpr->get_function()->accept( *this );
304 output << "(";
305 genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() );
306 output << ")";
307 } // if
308 }
309
310 void CodeGenerator::visit( UntypedExpr *untypedExpr ) {
311 if ( NameExpr *nameExpr = dynamic_cast< NameExpr* >( untypedExpr->get_function() ) ) {
312 OperatorInfo opInfo;
313 if ( operatorLookup( nameExpr->get_name(), opInfo ) ) {
314 std::list< Expression* >::iterator arg = untypedExpr->get_args().begin();
315 switch ( opInfo.type ) {
316 case OT_INDEX:
317 assert( untypedExpr->get_args().size() == 2 );
318 (*arg++)->accept( *this );
319 output << "[";
320 (*arg)->accept( *this );
321 output << "]";
322 break;
323
324 case OT_CALL:
325 assert( false );
326 break;
327
328 case OT_PREFIX:
329 case OT_PREFIXASSIGN:
330 case OT_LABELADDRESS:
331 assert( untypedExpr->get_args().size() == 1 );
332 output << "(";
333 output << opInfo.symbol;
334 (*arg)->accept( *this );
335 output << ")";
336 break;
337
338 case OT_POSTFIX:
339 case OT_POSTFIXASSIGN:
340 assert( untypedExpr->get_args().size() == 1 );
341 (*arg)->accept( *this );
342 output << opInfo.symbol;
343 break;
344
345 case OT_INFIX:
346 case OT_INFIXASSIGN:
347 assert( untypedExpr->get_args().size() == 2 );
348 output << "(";
349 (*arg++)->accept( *this );
350 output << opInfo.symbol;
351 (*arg)->accept( *this );
352 output << ")";
353 break;
354
355 case OT_CONSTANT:
356 // there are no intrinsic definitions of 0 or 1 as functions
357 assert( false );
358 }
359 } else {
360 nameExpr->accept( *this );
361 output << "(";
362 genCommaList( untypedExpr->get_args().begin(), untypedExpr->get_args().end() );
363 output << ")";
364 } // if
365 } else {
366 untypedExpr->get_function()->accept( *this );
367 output << "(";
368 genCommaList( untypedExpr->get_args().begin(), untypedExpr->get_args().end() );
369 output << ")";
370 } // if
371 }
372
373 void CodeGenerator::visit( NameExpr *nameExpr ) {
374 OperatorInfo opInfo;
375 if ( operatorLookup( nameExpr->get_name(), opInfo ) ) {
376 assert( opInfo.type == OT_CONSTANT );
377 output << opInfo.symbol;
378 } else {
379 output << nameExpr->get_name();
380 } // if
381 }
382
383 void CodeGenerator::visit( AddressExpr *addressExpr ) {
384 output << "(&";
385 // this hack makes sure that we don't convert "constant_zero" to "0" if we're taking its address
386 if ( VariableExpr *variableExpr = dynamic_cast< VariableExpr* >( addressExpr->get_arg() ) ) {
387 output << mangleName( variableExpr->get_var() );
388 } else {
389 addressExpr->get_arg()->accept( *this );
390 } // if
391 output << ")";
392 }
393
394 void CodeGenerator::visit( CastExpr *castExpr ) {
395 output << "(";
396 if ( castExpr->get_results().empty() ) {
397 output << "(void)" ;
398 } else if ( ! castExpr->get_results().front()->get_isLvalue() ) {
399 // at least one result type of cast, but not an lvalue
400 output << "(";
401 output << genType( castExpr->get_results().front(), "" );
402 output << ")";
403 } else {
404 // otherwise, the cast is to an lvalue type, so the cast
405 // should be dropped, since the result of a cast is
406 // never an lvalue in C
407 }
408 castExpr->get_arg()->accept( *this );
409 output << ")";
410 }
411
412 void CodeGenerator::visit( UntypedMemberExpr *memberExpr ) {
413 assert( false );
414 }
415
416 void CodeGenerator::visit( MemberExpr *memberExpr ) {
417 memberExpr->get_aggregate()->accept( *this );
418 output << "." << mangleName( memberExpr->get_member() );
419 }
420
421 void CodeGenerator::visit( VariableExpr *variableExpr ) {
422 OperatorInfo opInfo;
423 if ( variableExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( variableExpr->get_var()->get_name(), opInfo ) && opInfo.type == OT_CONSTANT ) {
424 output << opInfo.symbol;
425 } else {
426 output << mangleName( variableExpr->get_var() );
427 } // if
428 }
429
430 void CodeGenerator::visit( ConstantExpr *constantExpr ) {
431 assert( constantExpr->get_constant() );
432 constantExpr->get_constant()->accept( *this );
433 }
434
435 void CodeGenerator::visit( SizeofExpr *sizeofExpr ) {
436 output << "sizeof(";
437 if ( sizeofExpr->get_isType() ) {
438 output << genType( sizeofExpr->get_type(), "" );
439 } else {
440 sizeofExpr->get_expr()->accept( *this );
441 } // if
442 output << ")";
443 }
444
445 void CodeGenerator::visit( AlignofExpr *alignofExpr ) {
446 // use GCC extension to avoid bumping std to C11
447 output << "__alignof__(";
448 if ( alignofExpr->get_isType() ) {
449 output << genType( alignofExpr->get_type(), "" );
450 } else {
451 alignofExpr->get_expr()->accept( *this );
452 } // if
453 output << ")";
454 }
455
456 void CodeGenerator::visit( UntypedOffsetofExpr *offsetofExpr ) {
457 assert( false && "UntypedOffsetofExpr should not reach code generation" );
458 }
459
460 void CodeGenerator::visit( OffsetofExpr *offsetofExpr ) {
461 // use GCC builtin
462 output << "__builtin_offsetof(";
463 output << genType( offsetofExpr->get_type(), "" );
464 output << ", " << mangleName( offsetofExpr->get_member() );
465 output << ")";
466 }
467
468 void CodeGenerator::visit( OffsetPackExpr *offsetPackExpr ) {
469 assert( false && "OffsetPackExpr should not reach code generation" );
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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