Changes in / [9a8930f:a61fea9a]
- Location:
- src
- Files:
-
- 18 edited
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CodeGen/CodeGenerator.cc (modified) (18 diffs)
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CodeGen/CodeGenerator.h (modified) (5 diffs)
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CodeGen/GenType.cc (modified) (3 diffs)
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CodeGen/Generate.cc (modified) (2 diffs)
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Common/utility.h (modified) (2 diffs)
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ControlStruct/ChooseMutator.cc (modified) (2 diffs)
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ControlStruct/LabelFixer.cc (modified) (5 diffs)
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ControlStruct/LabelFixer.h (modified) (3 diffs)
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ControlStruct/LabelGenerator.cc (modified) (2 diffs)
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ControlStruct/LabelGenerator.h (modified) (3 diffs)
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ControlStruct/MLEMutator.cc (modified) (6 diffs)
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ControlStruct/MLEMutator.h (modified) (5 diffs)
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ControlStruct/Mutate.cc (modified) (2 diffs)
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SynTree/Mutator.h (modified) (2 diffs)
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SynTree/ObjectDecl.cc (modified) (2 diffs)
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SynTree/Statement.cc (modified) (2 diffs)
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SynTree/Statement.h (modified) (2 diffs)
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examples/control_structures.c (modified) (1 diff)
Legend:
- Unmodified
- Added
- Removed
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src/CodeGen/CodeGenerator.cc
r9a8930f ra61fea9a 5 5 // file "LICENCE" distributed with Cforall. 6 6 // 7 // CodeGenerator .cc --7 // CodeGenerator2.cc -- 8 8 // 9 9 // Author : Richard C. Bilson 10 10 // Created On : Mon May 18 07:44:20 2015 11 11 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Thu Jun 4 14:05:45201513 // Update Count : 1 2012 // Last Modified On : Wed Jun 3 11:53:32 2015 13 // Update Count : 13 14 14 // 15 15 … … 35 35 36 36 namespace CodeGen { 37 int CodeGenerator::tabsize = 4; 38 39 // the kinds of statements that would ideally be separated by more whitespace 40 bool wantSpacing( Statement * stmt) { 41 return dynamic_cast< IfStmt * >( stmt ) || dynamic_cast< CompoundStmt * >( stmt ) || 42 dynamic_cast< WhileStmt * >( stmt ) || dynamic_cast< ForStmt * > ( stmt ) || dynamic_cast< SwitchStmt *>( stmt ); 43 } 44 45 CodeGenerator::CodeGenerator( std::ostream &os ) : cur_indent( 0 ), insideFunction( false ), output( os ) { } 46 47 CodeGenerator::CodeGenerator( std::ostream &os, std::string init, int indent, bool infunp ) 48 : cur_indent( indent ), insideFunction( infunp ), output( os ) { 49 //output << std::string( init ); 50 } 51 52 CodeGenerator::CodeGenerator( std::ostream &os, char *init, int indent, bool infunp ) 53 : cur_indent( indent ), insideFunction( infunp ), output( os ) { 54 //output << std::string( init ); 37 int CodeGenerator2::tabsize = 4; 38 39 CodeGenerator2::CodeGenerator2( std::ostream &os ) : cur_indent( 0 ), insideFunction( false ), before( os ), after() { } 40 41 CodeGenerator2::CodeGenerator2( std::ostream &os, std::string init, int indent, bool infunp ) 42 : cur_indent( indent ), insideFunction( infunp ), before( os ) { 43 //before << std::string( init ); 44 } 45 46 CodeGenerator2::CodeGenerator2( std::ostream &os, char *init, int indent, bool infunp ) 47 : cur_indent( indent ), insideFunction( infunp ), before( os ) { 48 //before << std::string( init ); 55 49 } 56 50 … … 64 58 65 59 //*** Declarations 66 void CodeGenerator ::visit( FunctionDecl *functionDecl ) {60 void CodeGenerator2::visit( FunctionDecl *functionDecl ) { 67 61 handleStorageClass( functionDecl ); 68 62 if ( functionDecl->get_isInline() ) { 69 output<< "inline ";70 } // if 71 output<< genType( functionDecl->get_functionType(), mangleName( functionDecl ) );63 before << "inline "; 64 } // if 65 before << genType( functionDecl->get_functionType(), mangleName( functionDecl ) ); 72 66 73 67 // how to get this to the Functype? 74 68 std::list< Declaration * > olds = functionDecl->get_oldDecls(); 75 69 if ( ! olds.empty() ) { 76 output<< " /* function has old declaration */";70 before << " /* function has old declaration */"; 77 71 } // if 78 72 … … 83 77 } 84 78 85 void CodeGenerator ::visit( ObjectDecl *objectDecl ) {79 void CodeGenerator2::visit( ObjectDecl *objectDecl ) { 86 80 handleStorageClass( objectDecl ); 87 output<< genType( objectDecl->get_type(), mangleName( objectDecl ) );81 before << genType( objectDecl->get_type(), mangleName( objectDecl ) ); 88 82 89 83 if ( objectDecl->get_init() ) { 90 output<< " = ";84 before << " = "; 91 85 objectDecl->get_init()->accept( *this ); 92 86 } // if 93 87 if ( objectDecl->get_bitfieldWidth() ) { 94 output<< ":";88 before << ":"; 95 89 objectDecl->get_bitfieldWidth()->accept( *this ); 96 90 } // if 97 91 } 98 92 99 void CodeGenerator ::handleAggregate( AggregateDecl *aggDecl ) {93 void CodeGenerator2::handleAggregate( AggregateDecl *aggDecl ) { 100 94 if ( aggDecl->get_name() != "" ) 101 output<< aggDecl->get_name();95 before << aggDecl->get_name(); 102 96 103 97 std::list< Declaration * > &memb = aggDecl->get_members(); 104 98 105 99 if ( ! memb.empty() ) { 106 output<< endl << string( cur_indent, ' ' ) << "{" << endl;107 108 cur_indent += CodeGenerator ::tabsize;100 before << endl << string( cur_indent, ' ' ) << "{" << endl; 101 102 cur_indent += CodeGenerator2::tabsize; 109 103 for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++) { 110 output<< string( cur_indent, ' ' );104 before << string( cur_indent, ' ' ); 111 105 (*i)->accept(*this ); 112 output<< ";" << endl;106 before << ";" << endl; 113 107 } 114 108 115 cur_indent -= CodeGenerator ::tabsize;116 117 output<< string( cur_indent, ' ' ) << "}";118 } // if 119 } 120 121 void CodeGenerator ::visit( StructDecl *structDecl ) {122 output<< "struct ";109 cur_indent -= CodeGenerator2::tabsize; 110 111 before << string( cur_indent, ' ' ) << "}"; 112 } // if 113 } 114 115 void CodeGenerator2::visit( StructDecl *structDecl ) { 116 before << "struct "; 123 117 handleAggregate( structDecl ); 124 118 } 125 119 126 void CodeGenerator ::visit( UnionDecl *aggregateDecl ) {127 output<< "union ";120 void CodeGenerator2::visit( UnionDecl *aggregateDecl ) { 121 before << "union "; 128 122 handleAggregate( aggregateDecl ); 129 123 } 130 124 131 void CodeGenerator ::visit( EnumDecl *aggDecl ) {132 output<< "enum ";125 void CodeGenerator2::visit( EnumDecl *aggDecl ) { 126 before << "enum "; 133 127 134 128 if ( aggDecl->get_name() != "" ) 135 output<< aggDecl->get_name();129 before << aggDecl->get_name(); 136 130 137 131 std::list< Declaration* > &memb = aggDecl->get_members(); 138 132 139 133 if ( ! memb.empty() ) { 140 output<< endl << "{" << endl;141 142 cur_indent += CodeGenerator ::tabsize;134 before << endl << "{" << endl; 135 136 cur_indent += CodeGenerator2::tabsize; 143 137 for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++) { 144 138 ObjectDecl *obj = dynamic_cast< ObjectDecl* >( *i ); 145 139 assert( obj ); 146 output<< string( cur_indent, ' ' ) << mangleName( obj );140 before << string( cur_indent, ' ' ) << mangleName( obj ); 147 141 if ( obj->get_init() ) { 148 output<< " = ";142 before << " = "; 149 143 obj->get_init()->accept(*this ); 150 144 } // if 151 output<< "," << endl;145 before << "," << endl; 152 146 } // for 153 147 154 cur_indent -= CodeGenerator ::tabsize;155 156 output<< "}" << endl;157 } // if 158 } 159 160 void CodeGenerator ::visit( ContextDecl *aggregateDecl ) {}161 162 void CodeGenerator ::visit( TypedefDecl *typeDecl ) {163 output<< "typedef ";164 output<< genType( typeDecl->get_base(), typeDecl->get_name() );165 } 166 167 void CodeGenerator ::visit( TypeDecl *typeDecl ) {148 cur_indent -= CodeGenerator2::tabsize; 149 150 before << "}" << endl; 151 } // if 152 } 153 154 void CodeGenerator2::visit( ContextDecl *aggregateDecl ) {} 155 156 void CodeGenerator2::visit( TypedefDecl *typeDecl ) { 157 before << "typedef "; 158 before << genType( typeDecl->get_base(), typeDecl->get_name() ); 159 } 160 161 void CodeGenerator2::visit( TypeDecl *typeDecl ) { 168 162 // really, we should mutate this into something that isn't a TypeDecl but that requires large-scale changes, 169 163 // still to be done 170 output<< "extern unsigned long " << typeDecl->get_name();164 before << "extern unsigned long " << typeDecl->get_name(); 171 165 if ( typeDecl->get_base() ) { 172 output<< " = sizeof( " << genType( typeDecl->get_base(), "" ) << " )";173 } // if 174 } 175 176 void CodeGenerator ::visit( SingleInit *init ) {166 before << " = sizeof( " << genType( typeDecl->get_base(), "" ) << " )"; 167 } // if 168 } 169 170 void CodeGenerator2::visit( SingleInit *init ) { 177 171 init->get_value()->accept( *this ); 178 172 } 179 173 180 void CodeGenerator ::visit( ListInit *init ) {181 output<< "{ ";174 void CodeGenerator2::visit( ListInit *init ) { 175 before << "{ "; 182 176 genCommaList( init->begin_initializers(), init->end_initializers() ); 183 output<< " }";184 } 185 186 void CodeGenerator ::visit( Constant *constant ) {187 output<< constant->get_value() ;177 before << " }"; 178 } 179 180 void CodeGenerator2::visit( Constant *constant ) { 181 before << constant->get_value() ; 188 182 } 189 183 190 184 //*** Expressions 191 void CodeGenerator ::visit( ApplicationExpr *applicationExpr ) {185 void CodeGenerator2::visit( ApplicationExpr *applicationExpr ) { 192 186 if ( VariableExpr *varExpr = dynamic_cast< VariableExpr* >( applicationExpr->get_function() ) ) { 193 187 OperatorInfo opInfo; … … 220 214 assert( applicationExpr->get_args().size() == 2 ); 221 215 (*arg++)->accept( *this ); 222 output<< "[";223 (*arg)->accept( *this ); 224 output<< "]";216 before << "["; 217 (*arg)->accept( *this ); 218 before << "]"; 225 219 break; 226 220 … … 233 227 case OT_PREFIXASSIGN: 234 228 assert( applicationExpr->get_args().size() == 1 ); 235 output<< "(";236 output<< opInfo.symbol;237 (*arg)->accept( *this ); 238 output<< ")";229 before << "("; 230 before << opInfo.symbol; 231 (*arg)->accept( *this ); 232 before << ")"; 239 233 break; 240 234 … … 243 237 assert( applicationExpr->get_args().size() == 1 ); 244 238 (*arg)->accept( *this ); 245 output<< opInfo.symbol;239 before << opInfo.symbol; 246 240 break; 247 241 … … 249 243 case OT_INFIXASSIGN: 250 244 assert( applicationExpr->get_args().size() == 2 ); 251 output<< "(";245 before << "("; 252 246 (*arg++)->accept( *this ); 253 output<< opInfo.symbol;254 (*arg)->accept( *this ); 255 output<< ")";247 before << opInfo.symbol; 248 (*arg)->accept( *this ); 249 before << ")"; 256 250 break; 257 251 … … 262 256 } else { 263 257 varExpr->accept( *this ); 264 output<< "(";258 before << "("; 265 259 genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() ); 266 output<< ")";260 before << ")"; 267 261 } // if 268 262 } else { 269 263 applicationExpr->get_function()->accept( *this ); 270 output<< "(";264 before << "("; 271 265 genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() ); 272 output<< ")";273 } // if 274 } 275 276 void CodeGenerator ::visit( UntypedExpr *untypedExpr ) {266 before << ")"; 267 } // if 268 } 269 270 void CodeGenerator2::visit( UntypedExpr *untypedExpr ) { 277 271 if ( NameExpr *nameExpr = dynamic_cast< NameExpr* >( untypedExpr->get_function() ) ) { 278 272 OperatorInfo opInfo; … … 283 277 assert( untypedExpr->get_args().size() == 2 ); 284 278 (*arg++)->accept( *this ); 285 output<< "[";286 (*arg)->accept( *this ); 287 output<< "]";279 before << "["; 280 (*arg)->accept( *this ); 281 before << "]"; 288 282 break; 289 283 … … 295 289 case OT_PREFIXASSIGN: 296 290 assert( untypedExpr->get_args().size() == 1 ); 297 output<< "(";298 output<< opInfo.symbol;299 (*arg)->accept( *this ); 300 output<< ")";291 before << "("; 292 before << opInfo.symbol; 293 (*arg)->accept( *this ); 294 before << ")"; 301 295 break; 302 296 … … 305 299 assert( untypedExpr->get_args().size() == 1 ); 306 300 (*arg)->accept( *this ); 307 output<< opInfo.symbol;301 before << opInfo.symbol; 308 302 break; 309 303 … … 311 305 case OT_INFIXASSIGN: 312 306 assert( untypedExpr->get_args().size() == 2 ); 313 output<< "(";307 before << "("; 314 308 (*arg++)->accept( *this ); 315 output<< opInfo.symbol;316 (*arg)->accept( *this ); 317 output<< ")";309 before << opInfo.symbol; 310 (*arg)->accept( *this ); 311 before << ")"; 318 312 break; 319 313 … … 324 318 } else { 325 319 nameExpr->accept( *this ); 326 output<< "(";320 before << "("; 327 321 genCommaList( untypedExpr->get_args().begin(), untypedExpr->get_args().end() ); 328 output<< ")";322 before << ")"; 329 323 } // if 330 324 } else { 331 325 untypedExpr->get_function()->accept( *this ); 332 output<< "(";326 before << "("; 333 327 genCommaList( untypedExpr->get_args().begin(), untypedExpr->get_args().end() ); 334 output<< ")";335 } // if 336 } 337 338 void CodeGenerator ::visit( NameExpr *nameExpr ) {328 before << ")"; 329 } // if 330 } 331 332 void CodeGenerator2::visit( NameExpr *nameExpr ) { 339 333 OperatorInfo opInfo; 340 334 if ( operatorLookup( nameExpr->get_name(), opInfo ) ) { 341 335 assert( opInfo.type == OT_CONSTANT ); 342 output<< opInfo.symbol;343 } else { 344 output<< nameExpr->get_name();345 } // if 346 } 347 348 void CodeGenerator ::visit( AddressExpr *addressExpr ) {349 output<< "(&";336 before << opInfo.symbol; 337 } else { 338 before << nameExpr->get_name(); 339 } // if 340 } 341 342 void CodeGenerator2::visit( AddressExpr *addressExpr ) { 343 before << "(&"; 350 344 // this hack makes sure that we don't convert "constant_zero" to "0" if we're taking its address 351 345 if ( VariableExpr *variableExpr = dynamic_cast< VariableExpr* >( addressExpr->get_arg() ) ) { 352 output<< mangleName( variableExpr->get_var() );346 before << mangleName( variableExpr->get_var() ); 353 347 } else { 354 348 addressExpr->get_arg()->accept( *this ); 355 349 } // if 356 output<< ")";357 } 358 359 void CodeGenerator ::visit( CastExpr *castExpr ) {360 output<< "((";350 before << ")"; 351 } 352 353 void CodeGenerator2::visit( CastExpr *castExpr ) { 354 before << "(("; 361 355 if ( castExpr->get_results().empty() ) { 362 output<< "void" ;363 } else { 364 output<< genType( castExpr->get_results().front(), "" );365 } // if 366 output<< ")";356 before << "void" ; 357 } else { 358 before << genType( castExpr->get_results().front(), "" ); 359 } // if 360 before << ")"; 367 361 castExpr->get_arg()->accept( *this ); 368 output<< ")";369 } 370 371 void CodeGenerator ::visit( UntypedMemberExpr *memberExpr ) {362 before << ")"; 363 } 364 365 void CodeGenerator2::visit( UntypedMemberExpr *memberExpr ) { 372 366 assert( false ); 373 367 } 374 368 375 void CodeGenerator ::visit( MemberExpr *memberExpr ) {369 void CodeGenerator2::visit( MemberExpr *memberExpr ) { 376 370 memberExpr->get_aggregate()->accept( *this ); 377 output<< "." << mangleName( memberExpr->get_member() );378 } 379 380 void CodeGenerator ::visit( VariableExpr *variableExpr ) {371 before << "." << mangleName( memberExpr->get_member() ); 372 } 373 374 void CodeGenerator2::visit( VariableExpr *variableExpr ) { 381 375 OperatorInfo opInfo; 382 376 if ( variableExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( variableExpr->get_var()->get_name(), opInfo ) && opInfo.type == OT_CONSTANT ) { 383 output<< opInfo.symbol;384 } else { 385 output<< mangleName( variableExpr->get_var() );386 } // if 387 } 388 389 void CodeGenerator ::visit( ConstantExpr *constantExpr ) {377 before << opInfo.symbol; 378 } else { 379 before << mangleName( variableExpr->get_var() ); 380 } // if 381 } 382 383 void CodeGenerator2::visit( ConstantExpr *constantExpr ) { 390 384 assert( constantExpr->get_constant() ); 391 385 constantExpr->get_constant()->accept( *this ); 392 386 } 393 387 394 void CodeGenerator ::visit( SizeofExpr *sizeofExpr ) {395 output<< "sizeof(";388 void CodeGenerator2::visit( SizeofExpr *sizeofExpr ) { 389 before << "sizeof("; 396 390 if ( sizeofExpr->get_isType() ) { 397 output<< genType( sizeofExpr->get_type(), "" );391 before << genType( sizeofExpr->get_type(), "" ); 398 392 } else { 399 393 sizeofExpr->get_expr()->accept( *this ); 400 394 } // if 401 output<< ")";402 } 403 404 void CodeGenerator ::visit( LogicalExpr *logicalExpr ) {405 output<< "(";395 before << ")"; 396 } 397 398 void CodeGenerator2::visit( LogicalExpr *logicalExpr ) { 399 before << "("; 406 400 logicalExpr->get_arg1()->accept( *this ); 407 401 if ( logicalExpr->get_isAnd() ) { 408 output<< " && ";409 } else { 410 output<< " || ";402 before << " && "; 403 } else { 404 before << " || "; 411 405 } // if 412 406 logicalExpr->get_arg2()->accept( *this ); 413 output<< ")";414 } 415 416 void CodeGenerator ::visit( ConditionalExpr *conditionalExpr ) {417 output<< "(";407 before << ")"; 408 } 409 410 void CodeGenerator2::visit( ConditionalExpr *conditionalExpr ) { 411 before << "("; 418 412 conditionalExpr->get_arg1()->accept( *this ); 419 output<< " ? ";413 before << " ? "; 420 414 conditionalExpr->get_arg2()->accept( *this ); 421 output<< " : ";415 before << " : "; 422 416 conditionalExpr->get_arg3()->accept( *this ); 423 output<< ")";424 } 425 426 void CodeGenerator ::visit( CommaExpr *commaExpr ) {427 output<< "(";417 before << ")"; 418 } 419 420 void CodeGenerator2::visit( CommaExpr *commaExpr ) { 421 before << "("; 428 422 commaExpr->get_arg1()->accept( *this ); 429 output<< " , ";423 before << " , "; 430 424 commaExpr->get_arg2()->accept( *this ); 431 output << ")"; 432 } 433 434 void CodeGenerator::visit( TupleExpr *tupleExpr ) {} 435 436 void CodeGenerator::visit( TypeExpr *typeExpr ) {} 437 425 before << ")"; 426 } 427 428 void CodeGenerator2::visit( TupleExpr *tupleExpr ) {} 429 430 void CodeGenerator2::visit( TypeExpr *typeExpr ) {} 431 432 438 433 //*** Statements 439 void CodeGenerator ::visit( CompoundStmt *compoundStmt ) {434 void CodeGenerator2::visit( CompoundStmt *compoundStmt ) { 440 435 std::list<Statement*> ks = compoundStmt->get_kids(); 441 output << "{" << endl; 442 443 cur_indent += CodeGenerator::tabsize; 436 437 before << endl << string( cur_indent, ' ' ) << "{" << endl; 438 439 cur_indent += CodeGenerator2::tabsize; 444 440 445 441 for ( std::list<Statement *>::iterator i = ks.begin(); i != ks.end(); i++) { 446 output << string( cur_indent, ' ' ) << printLabels( (*i)->get_labels() );442 before << string( cur_indent, ' ' ) << printLabels( (*i)->get_labels() ) ; 447 443 (*i)->accept(*this ); 448 449 output << endl; 450 if ( wantSpacing( *i ) ) { 451 output << endl; 452 } 444 shift_left(); 445 before << endl; 453 446 } 454 cur_indent -= CodeGenerator::tabsize; 455 456 output << string( cur_indent, ' ' ) << "}"; 457 } 458 459 void CodeGenerator::visit( ExprStmt *exprStmt ) { 460 // I don't see why this check is necessary. 461 // If this starts to cause problems then put it back in, 462 // with an explanation 463 assert( exprStmt ); 464 465 // if ( exprStmt != 0 ) { 466 exprStmt->get_expr()->accept( *this ); 467 output << ";" ; 468 // } // if 469 } 470 471 void CodeGenerator::visit( IfStmt *ifStmt ) { 472 output << "if ("; 447 cur_indent -= CodeGenerator2::tabsize; 448 449 before << string( cur_indent, ' ' ) << "}" << endl; 450 } 451 452 void CodeGenerator2::visit( ExprStmt *exprStmt ) { 453 if ( exprStmt != 0 ) { 454 exprStmt->get_expr()->accept( *this ); 455 shift_left(); 456 before << ";" ; 457 } // if 458 } 459 460 void CodeGenerator2::visit( IfStmt *ifStmt ) { 461 before << "if ("; 473 462 ifStmt->get_condition()->accept(*this ); 474 output << ") "; 475 463 after += ")\n"; 464 shift_left(); 465 466 cur_indent += CodeGenerator2::tabsize; 467 before << string( cur_indent, ' ' ); 476 468 ifStmt->get_thenPart()->accept(*this ); 469 cur_indent -= CodeGenerator2::tabsize; 470 shift_left(); before << endl; 477 471 478 472 if ( ifStmt->get_elsePart() != 0) { 479 output << " else "; 473 before << string( cur_indent, ' ' ) << " else " << endl ; 474 475 cur_indent += CodeGenerator2::tabsize; 480 476 ifStmt->get_elsePart()->accept(*this ); 481 } // if 482 } 483 484 void CodeGenerator::visit( SwitchStmt *switchStmt ) { 485 //output << /* "\r" << */ string( cur_indent, ' ' ) << CodeGenerator::printLabels( switchStmt->get_labels() ) 486 output << "switch (" ; 477 cur_indent -= CodeGenerator2::tabsize; 478 } // if 479 } 480 481 void CodeGenerator2::visit( SwitchStmt *switchStmt ) { 482 //before << /* "\r" << */ string( cur_indent, ' ' ) << CodeGenerator2::printLabels( switchStmt->get_labels() ) 483 before << "switch (" ; 487 484 switchStmt->get_condition()->accept(*this ); 488 output << ") "; 489 490 output << "{" << std::endl; 491 cur_indent += CodeGenerator::tabsize; 492 493 acceptAll( switchStmt->get_branches(), *this ); 494 495 cur_indent -= CodeGenerator::tabsize; 496 497 output << string( cur_indent, ' ' ) << "}"; 498 } 499 500 void CodeGenerator::visit( CaseStmt *caseStmt ) { 501 output << string( cur_indent, ' ' ); 485 after += ")\n"; 486 shift_left(); 487 488 before << string( cur_indent, ' ' ) << "{" << std::endl; 489 cur_indent += CodeGenerator2::tabsize; 490 491 std::list< Statement * > stmts = switchStmt->get_branches(); 492 bool lastBreak = false; 493 494 // horrible, horrible hack 495 if ( dynamic_cast<BranchStmt *>( stmts.back() ) != 0 ) { 496 lastBreak = true; 497 stmts.pop_back(); 498 } // if 499 acceptAll( stmts, *this ); 500 if ( lastBreak ) { 501 Statement *st = switchStmt->get_branches().back(); 502 before << CodeGenerator2::printLabels( st->get_labels()); 503 st->accept( *this ); 504 } // if 505 506 cur_indent -= CodeGenerator2::tabsize; 507 508 before << /* "\r" << */ string( cur_indent, ' ' ) << "}" << endl ; 509 } 510 511 void CodeGenerator2::visit( CaseStmt *caseStmt ) { 512 before << string( cur_indent, ' ' ); 502 513 if ( caseStmt->isDefault()) 503 output << "default";514 before << "default " ; 504 515 else { 505 output << "case ";516 before << "case " ; 506 517 caseStmt->get_condition()->accept(*this ); 507 518 } // if 508 output << ":\n"; 509 519 after += ":\n"; 520 shift_left(); 521 510 522 std::list<Statement *> sts = caseStmt->get_statements(); 511 523 512 cur_indent += CodeGenerator ::tabsize;524 cur_indent += CodeGenerator2::tabsize; 513 525 for ( std::list<Statement *>::iterator i = sts.begin(); i != sts.end(); i++) { 514 output<< /* "\r" << */ string( cur_indent, ' ' ) << printLabels( (*i)->get_labels() ) ;526 before << /* "\r" << */ string( cur_indent, ' ' ) << printLabels( (*i)->get_labels() ) ; 515 527 (*i)->accept(*this ); 516 output << endl; 528 shift_left(); 529 before << ";" << endl; 517 530 } 518 cur_indent -= CodeGenerator::tabsize; 519 } 520 521 void CodeGenerator::visit( BranchStmt *branchStmt ) { 522 output << "\r" << string( cur_indent, ' ' ); 523 output << CodeGenerator::printLabels( branchStmt->get_labels()); 524 531 cur_indent -= CodeGenerator2::tabsize; 532 } 533 534 void CodeGenerator2::visit( BranchStmt *branchStmt ) { 525 535 switch ( branchStmt->get_type()) { 526 536 case BranchStmt::Goto: 527 537 if ( ! branchStmt->get_target().empty() ) 528 output<< "goto " << branchStmt->get_target();538 before << "goto " << branchStmt->get_target(); 529 539 else { 530 540 if ( branchStmt->get_computedTarget() != 0 ) { 531 output<< "goto *";541 before << "goto *"; 532 542 branchStmt->get_computedTarget()->accept( *this ); 533 543 } // if … … 535 545 break; 536 546 case BranchStmt::Break: 537 output<< "break";547 before << "break"; 538 548 break; 539 549 case BranchStmt::Continue: 540 output<< "continue";550 before << "continue"; 541 551 break; 542 552 } 543 output<< ";";544 } 545 546 547 void CodeGenerator ::visit( ReturnStmt *returnStmt ) {548 output<< "return ";553 before << ";"; 554 } 555 556 557 void CodeGenerator2::visit( ReturnStmt *returnStmt ) { 558 before << "return "; 549 559 550 560 // xxx -- check for null expression; … … 552 562 returnStmt->get_expr()->accept( *this ); 553 563 } // if 554 output <<";";555 } 556 557 void CodeGenerator ::visit( WhileStmt *whileStmt ) {564 after += ";"; 565 } 566 567 void CodeGenerator2::visit( WhileStmt *whileStmt ) { 558 568 if ( whileStmt->get_isDoWhile() ) 559 output<< "do" ;569 before << "do" ; 560 570 else { 561 output<< "while (" ;571 before << "while (" ; 562 572 whileStmt->get_condition()->accept(*this ); 563 output <<")";564 } // if 565 output << "";566 567 output << CodeGenerator::printLabels( whileStmt->get_body()->get_labels() ); 573 after += ")"; 574 } // if 575 after += "{\n"; 576 shift_left(); 577 568 578 whileStmt->get_body()->accept( *this ); 569 579 570 output << /* "\r" << */ string( cur_indent, ' ' );580 before << /* "\r" << */ string( cur_indent, ' ' ) << "}" ; 571 581 572 582 if ( whileStmt->get_isDoWhile() ) { 573 output<< " while (" ;583 before << " while (" ; 574 584 whileStmt->get_condition()->accept(*this ); 575 output << ");"; 576 } // if 577 } 578 579 void CodeGenerator::visit( ForStmt *forStmt ) { 580 output << "for ("; 585 after += ");"; 586 } // if 587 588 after += "\n"; 589 } 590 591 void CodeGenerator2::visit( ForStmt *forStmt ) { 592 before << "for ("; 581 593 582 594 if ( forStmt->get_initialization() != 0 ) 583 595 forStmt->get_initialization()->accept( *this ); 584 596 else 585 output << ";"; 586 597 before << ";"; 598 shift_left(); 599 587 600 if ( forStmt->get_condition() != 0 ) 588 601 forStmt->get_condition()->accept( *this ); 589 output<< ";";602 shift_left(); before << ";"; 590 603 591 604 if ( forStmt->get_increment() != 0 ) 592 605 forStmt->get_increment()->accept( *this ); 593 output << ") ";606 shift_left(); before << ")" << endl; 594 607 595 608 if ( forStmt->get_body() != 0 ) { 596 output << CodeGenerator::printLabels( forStmt->get_body()->get_labels() ); 609 cur_indent += CodeGenerator2::tabsize; 610 before << string( cur_indent, ' ' ) << CodeGenerator2::printLabels( forStmt->get_body()->get_labels() ); 597 611 forStmt->get_body()->accept( *this ); 598 } // if 599 } 600 601 void CodeGenerator::visit( NullStmt *nullStmt ) { 602 //output << /* "\r" << */ string( cur_indent, ' ' ) << CodeGenerator::printLabels( nullStmt->get_labels() ); 603 output << "/* null statement */ ;"; 604 } 605 606 void CodeGenerator::visit( DeclStmt *declStmt ) { 612 cur_indent -= CodeGenerator2::tabsize; 613 } // if 614 } 615 616 void CodeGenerator2::visit( NullStmt *nullStmt ) { 617 //before << /* "\r" << */ string( cur_indent, ' ' ) << CodeGenerator2::printLabels( nullStmt->get_labels() ); 618 before << "/* null statement */ ;"; 619 } 620 621 void CodeGenerator2::visit( DeclStmt *declStmt ) { 607 622 declStmt->get_decl()->accept( *this ); 608 623 609 624 if ( doSemicolon( declStmt->get_decl() ) ) { 610 output << ";"; 611 } // if 612 } 613 614 std::string CodeGenerator::printLabels( std::list< Label > &l ) { 625 after += ";"; 626 } // if 627 shift_left(); 628 } 629 630 std::string CodeGenerator2::printLabels( std::list< Label > &l ) { 615 631 std::string str( "" ); 616 l.unique(); // assumes a sorted list. Why not use set?632 l.unique(); 617 633 618 634 for ( std::list< Label >::iterator i = l.begin(); i != l.end(); i++ ) … … 622 638 } 623 639 624 void CodeGenerator::handleStorageClass( Declaration *decl ) { 640 void CodeGenerator2::shift_left() { 641 before << after; 642 after = ""; 643 } 644 645 void CodeGenerator2::handleStorageClass( Declaration *decl ) { 625 646 switch ( decl->get_storageClass() ) { 626 647 case Declaration::NoStorageClass: 627 648 break; 628 649 case Declaration::Extern: 629 output<< "extern ";650 before << "extern "; 630 651 break; 631 652 case Declaration::Static: 632 output<< "static ";653 before << "static "; 633 654 break; 634 655 case Declaration::Auto: … … 636 657 break; 637 658 case Declaration::Register: 638 output<< "register ";659 before << "register "; 639 660 break; 640 661 case Declaration::Inline: -
src/CodeGen/CodeGenerator.h
r9a8930f ra61fea9a 5 5 // file "LICENCE" distributed with Cforall. 6 6 // 7 // CodeGenerator .h --7 // CodeGenerator2.h -- 8 8 // 9 9 // Author : Richard C. Bilson 10 10 // Created On : Mon May 18 07:44:20 2015 11 // Last Modified By : Rob Schluntz12 // Last Modified On : Tue Jun 02 13:43:29201513 // Update Count : 1411 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Mon May 18 23:35:37 2015 13 // Update Count : 2 14 14 // 15 15 … … 25 25 26 26 namespace CodeGen { 27 class CodeGenerator : public Visitor {27 class CodeGenerator2 : public Visitor { 28 28 public: 29 29 static int tabsize; 30 30 31 CodeGenerator( std::ostream &os ); 32 CodeGenerator( std::ostream &os, std::string, int indent = 0, bool infun = false ); 33 CodeGenerator( std::ostream &os, char *, int indent = 0, bool infun = false ); 31 CodeGenerator2( std::ostream &os ); 32 CodeGenerator2( std::ostream &os, std::string, int indent = 0, bool infun = false ); 33 CodeGenerator2( std::ostream &os, char *, int indent = 0, bool infun = false ); 34 35 CodeGenerator2( CodeGenerator2 & ); 34 36 35 37 //*** Declaration … … 80 82 virtual void visit( DeclStmt * ); 81 83 84 std::string get_string( void ); 85 void add_string_left( std::string s ) { before << s; } 86 void shift_left(); 82 87 template< class Iterator > void genCommaList( Iterator begin, Iterator end ); 83 88 private: 84 89 int cur_indent; 85 90 bool insideFunction; 86 std::ostream &output; 91 std::ostream &before; 92 std::string after; 87 93 88 94 static std::string printLabels ( std::list < Label > & ); … … 94 100 95 101 template< class Iterator > 96 void CodeGenerator ::genCommaList( Iterator begin, Iterator end ) {102 void CodeGenerator2::genCommaList( Iterator begin, Iterator end ) { 97 103 if ( begin == end ) return; 98 104 … … 100 106 (*begin++)->accept( *this ); 101 107 if ( begin == end ) return; 102 output<< ", ";108 before << ", "; 103 109 } // for 104 110 } -
src/CodeGen/GenType.cc
r9a8930f ra61fea9a 10 10 // Created On : Mon May 18 07:44:20 2015 11 11 // Last Modified By : Peter A. Buhr 12 // Last Modified On : T hu Jun 4 14:04:58201513 // Update Count : 412 // Last Modified On : Tue Jun 2 11:21:32 2015 13 // Update Count : 3 14 14 // 15 15 … … 97 97 } // if 98 98 if ( dimension != 0 ) { 99 CodeGenerator cg( os );99 CodeGenerator2 cg( os ); 100 100 dimension->accept( cg ); 101 101 } // if … … 148 148 } // if 149 149 } else { 150 CodeGenerator cg( os );150 CodeGenerator2 cg( os ); 151 151 os << "(" ; 152 152 -
src/CodeGen/Generate.cc
r9a8930f ra61fea9a 10 10 // Created On : Mon May 18 07:44:20 2015 11 11 // Last Modified By : Peter A. Buhr 12 // Last Modified On : T hu Jun 4 14:04:25201513 // Update Count : 512 // Last Modified On : Tue Jun 2 11:21:06 2015 13 // Update Count : 2 14 14 // 15 15 … … 27 27 namespace CodeGen { 28 28 void generate( std::list< Declaration* > translationUnit, std::ostream &os, bool doIntrinsics ) { 29 CodeGen::CodeGenerator cgv( os );29 CodeGen::CodeGenerator2 cgv( os ); 30 30 31 31 for ( std::list<Declaration *>::iterator i = translationUnit.begin(); i != translationUnit.end(); i++ ) { 32 32 if ( LinkageSpec::isGeneratable( (*i)->get_linkage() ) && (doIntrinsics || ! LinkageSpec::isBuiltin( (*i)->get_linkage() ) ) ) { 33 33 (*i)->accept(cgv); 34 cgv.shift_left(); 34 35 if ( doSemicolon( *i ) ) { 35 36 os << ";"; -
src/Common/utility.h
r9a8930f ra61fea9a 9 9 // Author : Richard C. Bilson 10 10 // Created On : Mon May 18 07:44:20 2015 11 // Last Modified By : Rob Schluntz12 // Last Modified On : Fri May 29 16:17:02201513 // Update Count : 711 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Tue May 19 15:34:57 2015 13 // Update Count : 3 14 14 // 15 15 … … 198 198 } 199 199 200 // it's nice to actually be able to increment iterators by an arbitrary amount201 template< typename Iterator >202 Iterator operator+(Iterator i, int inc) {203 while ( inc > 0 ) {204 ++i;205 --inc;206 }207 return i;208 }209 210 200 #endif // _UTILITY_H 211 201 -
src/ControlStruct/ChooseMutator.cc
r9a8930f ra61fea9a 9 9 // Author : Rodolfo G. Esteves 10 10 // Created On : Mon May 18 07:44:20 2015 11 // Last Modified By : Rob Schluntz12 // Last Modified On : Wed Jun 03 15:30:20201513 // Update Count : 511 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Tue May 19 15:31:39 2015 13 // Update Count : 2 14 14 // 15 15 … … 44 44 std::list< Statement * > &stmts = caseStmt->get_statements(); 45 45 46 // the difference between switch and choose is that switch has an implicit fallthrough47 // to the next case, whereas choose has an implicit break at the end of the current case.48 // thus to transform a choose statement into a switch, we only need to insert breaks at the49 // end of any case that doesn't already end in a break and that doesn't end in a fallthru50 51 46 if ( insideChoose ) { 52 47 BranchStmt *posBrk; -
src/ControlStruct/LabelFixer.cc
r9a8930f ra61fea9a 10 10 // Created On : Mon May 18 07:44:20 2015 11 11 // Last Modified By : Rob Schluntz 12 // Last Modified On : Tue Jun 02 15:30:32201513 // Update Count : 9312 // Last Modified On : Wed May 27 16:16:14 2015 13 // Update Count : 4 14 14 // 15 15 … … 23 23 #include "utility.h" 24 24 25 #include <iostream>26 27 25 namespace ControlStruct { 28 LabelFixer::Entry::Entry( Statement *to, BranchStmt *from ) : definition ( to ) {26 LabelFixer::Entry::Entry( Statement *to, Statement *from ) : definition ( to ) { 29 27 if ( from != 0 ) 30 28 usage.push_back( from ); … … 33 31 bool LabelFixer::Entry::insideLoop() { 34 32 return ( dynamic_cast< ForStmt * > ( definition ) || 35 dynamic_cast< WhileStmt * > ( definition ) );33 dynamic_cast< WhileStmt * > ( definition ) ); 36 34 } 37 35 … … 48 46 } 49 47 50 // prune to at most one label definition for each statement51 48 void LabelFixer::visit( Statement *stmt ) { 52 49 std::list< Label > &labels = stmt->get_labels(); 53 50 54 51 if ( ! labels.empty() ) { 55 // only remember one label for each statement56 52 Label current = setLabelsDef( labels, stmt ); 57 53 labels.clear(); … … 61 57 62 58 void LabelFixer::visit( BranchStmt *branchStmt ) { 63 visit ( ( Statement * )branchStmt ); 59 visit ( ( Statement * )branchStmt ); // the labels this statement might have 64 60 65 // for labeled branches, add an entry to the label table 66 Label target = branchStmt->get_target(); 67 if ( target != "" ) { 61 Label target; 62 if ( (target = branchStmt->get_target()) != "" ) { 68 63 setLabelsUsg( target, branchStmt ); 69 } 64 } //else /* computed goto or normal exit-loop statements */ 70 65 } 71 66 72 // sets the definition of the labelTable entry to be the provided73 // statement for every label in the list parameter. Happens for every kind of statement74 67 Label LabelFixer::setLabelsDef( std::list< Label > &llabel, Statement *definition ) { 75 68 assert( definition != 0 ); 76 assert( llabel.size() > 0 ); 69 Entry *entry = new Entry( definition ); 70 bool used = false; 77 71 78 Entry * e = new Entry( definition ); 72 for ( std::list< Label >::iterator i = llabel.begin(); i != llabel.end(); i++ ) 73 if ( labelTable.find( *i ) == labelTable.end() ) 74 { used = true; labelTable[ *i ] = entry; } // undefined and unused 75 else 76 if ( labelTable[ *i ]->defined() ) 77 throw SemanticError( "Duplicate definition of label: " + *i ); 78 else 79 labelTable[ *i ]->set_definition( definition ); 79 80 80 for ( std::list< Label >::iterator i = llabel.begin(); i != llabel.end(); i++ ) { 81 if ( labelTable.find( *i ) == labelTable.end() ) { 82 // all labels on this statement need to use the same entry, so this should only be created once 83 // undefined and unused until now, add an entry 84 labelTable[ *i ] = e; 85 } else if ( labelTable[ *i ]->defined() ) { 86 // defined twice, error 87 throw SemanticError( "Duplicate definition of label: " + *i ); 88 } else { 89 // used previously, but undefined until now -> link with this entry 90 Entry * oldEntry = labelTable[ *i ]; 91 e->add_uses( oldEntry->get_uses() ); 92 labelTable[ *i ] = e; 93 } // if 94 } // for 81 if ( ! used ) delete entry; 95 82 96 // produce one of the labels attached to this statement to be 97 // temporarily used as the canonical label 98 return labelTable[ llabel.front() ]->get_label(); 83 return labelTable[ llabel.front() ]->get_label(); // this *must* exist 99 84 } 100 85 101 // Remember all uses of a label. 102 void LabelFixer::setLabelsUsg( Label orgValue, BranchStmt *use ) { 86 Label LabelFixer::setLabelsUsg( Label orgValue, Statement *use ) { 103 87 assert( use != 0 ); 104 88 105 if ( labelTable.find( orgValue ) != labelTable.end() ) { 106 // the label has been defined or used before 107 labelTable[ orgValue ]->add_use( use ); 108 } else { 89 if ( labelTable.find( orgValue ) != labelTable.end() ) 90 labelTable[ orgValue ]->add_use( use ); // the label has been defined or used before 91 else 109 92 labelTable[ orgValue ] = new Entry( 0, use ); 110 } 93 94 return labelTable[ orgValue ]->get_label(); 111 95 } 112 96 113 // Ultimately builds a table that maps a label to its defining statement.114 // In the process,115 97 std::map<Label, Statement * > *LabelFixer::resolveJumps() throw ( SemanticError ) { 116 98 std::map< Statement *, Entry * > def_us; 117 99 118 // combine the entries for all labels that target the same location 119 for ( std::map< Label, Entry *>::iterator i = labelTable.begin(); i != labelTable.end(); ++i ) { 100 for ( std::map< Label, Entry *>::iterator i = labelTable.begin(); i != labelTable.end(); i++ ) { 120 101 Entry *e = i->second; 121 102 122 103 if ( def_us.find ( e->get_definition() ) == def_us.end() ) { 123 104 def_us[ e->get_definition() ] = e; 124 } else if ( e->used() ) { 125 def_us[ e->get_definition() ]->add_uses( e->get_uses() ); 105 } else { 106 if ( e->used() ) 107 def_us[ e->get_definition() ]->add_uses( e->get_uses() ); 126 108 } 127 109 } 128 110 129 // create a unique label for each target location.130 for ( std::map< Statement *, Entry * >::iterator i = def_us.begin(); i != def_us.end(); ++i) {111 // get rid of labelTable 112 for ( std::map< Statement *, Entry * >::iterator i = def_us.begin(); i != def_us.end(); i++ ) { 131 113 Statement *to = (*i).first; 132 Entry * entry = (*i).second; 133 std::list< BranchStmt *> &from = entry->get_uses(); 114 std::list< Statement *> &from = (*i).second->get_uses(); 115 Label finalLabel = generator->newLabel(); 116 (*i).second->set_label( finalLabel ); 134 117 135 // no label definition found136 118 if ( to == 0 ) { 137 Label undef = from.back()->get_target(); 119 BranchStmt *first_use = dynamic_cast<BranchStmt *>(from.back()); 120 Label undef(""); 121 if ( first_use != 0 ) 122 undef = first_use->get_target(); 138 123 throw SemanticError ( "'" + undef + "' label not defined"); 139 124 } 140 141 // generate a new label, and attach it to its defining statement142 // as the only label on that statement143 Label finalLabel = generator->newLabel();144 entry->set_label( finalLabel );145 125 146 126 to->get_labels().clear(); 147 127 to->get_labels().push_back( finalLabel ); 148 128 149 // redirect each of the source branch statements to the new target label 150 for ( std::list< BranchStmt *>::iterator j = from.begin(); j != from.end(); ++j ) { 151 BranchStmt *jump = *j; 152 assert( jump != 0 ); 153 jump->set_target( finalLabel ); 129 for ( std::list< Statement *>::iterator j = from.begin(); j != from.end(); j++ ) { 130 BranchStmt *jumpTo = dynamic_cast< BranchStmt * > ( *j ); 131 assert( jumpTo != 0 ); 132 jumpTo->set_target( finalLabel ); 154 133 } // for 155 134 } // for 156 135 157 // create a table where each label maps to its defining statement136 // reverse table 158 137 std::map< Label, Statement * > *ret = new std::map< Label, Statement * >(); 159 for ( std::map< Statement *, Entry * >::iterator i = def_us.begin(); i != def_us.end(); ++i ) {138 for ( std::map< Statement *, Entry * >::iterator i = def_us.begin(); i != def_us.end(); i++ ) 160 139 (*ret)[ (*i).second->get_label() ] = (*i).first; 161 }162 140 163 141 return ret; -
src/ControlStruct/LabelFixer.h
r9a8930f ra61fea9a 10 10 // Created On : Mon May 18 07:44:20 2015 11 11 // Last Modified By : Rob Schluntz 12 // Last Modified On : Fri May 29 15:25:55201513 // Update Count : 1112 // Last Modified On : Tue May 26 12:55:10 2015 13 // Update Count : 4 14 14 // 15 15 … … 55 55 56 56 Label setLabelsDef( std::list< Label > &, Statement *definition ); 57 void setLabelsUsg( Label, BranchStmt *usage = 0 );57 Label setLabelsUsg( Label, Statement *usage = 0 ); 58 58 59 59 private: 60 60 class Entry { 61 61 public: 62 Entry( Statement *to = 0, BranchStmt *from = 0 );62 Entry( Statement *to = 0, Statement *from = 0 ); 63 63 bool used() { return ( usage.empty() ); } 64 64 bool defined() { return ( definition != 0 ); } … … 71 71 void set_definition( Statement *def ) { definition = def; } 72 72 73 std::list< BranchStmt *> &get_uses() { return usage; }74 void add_use ( BranchStmt *use ) { usage.push_back( use ); }75 void add_uses ( std::list< BranchStmt *> uses ) { usage.insert( usage.end(), uses.begin(), uses.end() ); }73 std::list< Statement *> &get_uses() { return usage; } 74 void add_use ( Statement *use ) { usage.push_back( use ); } 75 void add_uses ( std::list<Statement *> uses ) { usage.insert( usage.end(), uses.begin(), uses.end() ); } 76 76 private: 77 77 Label label; 78 78 Statement *definition; 79 std::list< BranchStmt *> usage;79 std::list<Statement *> usage; 80 80 }; 81 81 -
src/ControlStruct/LabelGenerator.cc
r9a8930f ra61fea9a 9 9 // Author : Rodolfo G. Esteves 10 10 // Created On : Mon May 18 07:44:20 2015 11 // Last Modified By : Rob Schluntz12 // Last Modified On : Wed Jun 03 14:23:26201513 // Update Count : 911 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Tue May 19 15:32:04 2015 13 // Update Count : 2 14 14 // 15 15 … … 29 29 } 30 30 31 Label LabelGenerator::newLabel( std::string suffix) {31 Label LabelGenerator::newLabel() { 32 32 std::ostrstream os; 33 os << "__L" << current++ << "__" << suffix;33 os << "__L" << current++ << "__";// << std::ends; 34 34 os.freeze( false ); 35 35 std::string ret = std::string (os.str(), os.pcount()); -
src/ControlStruct/LabelGenerator.h
r9a8930f ra61fea9a 9 9 // Author : Rodolfo G. Esteves 10 10 // Created On : Mon May 18 07:44:20 2015 11 // Last Modified By : Rob Schluntz12 // Last Modified On : Wed Jun 03 14:16:26201513 // Update Count : 511 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Tue May 19 15:33:20 2015 13 // Update Count : 3 14 14 // 15 15 … … 18 18 19 19 #include "SynTree/SynTree.h" 20 #include <string>21 20 22 21 namespace ControlStruct { … … 24 23 public: 25 24 static LabelGenerator *getGenerator(); 26 Label newLabel( std::string suffix = "");25 Label newLabel(); 27 26 void reset() { current = 0; } 28 27 void rewind() { current--; } -
src/ControlStruct/MLEMutator.cc
r9a8930f ra61fea9a 10 10 // Created On : Mon May 18 07:44:20 2015 11 11 // Last Modified By : Rob Schluntz 12 // Last Modified On : Wed Jun 03 15:09:27201513 // Update Count : 17012 // Last Modified On : Wed May 27 16:19:32 2015 13 // Update Count : 44 14 14 // 15 15 … … 19 19 #include "MLEMutator.h" 20 20 #include "SynTree/Statement.h" 21 #include "SynTree/Expression.h"22 21 23 22 namespace ControlStruct { … … 27 26 } 28 27 29 // break labels have to come after the statement they break out of, 30 // so mutate a statement, then if they inform us through the breakLabel field 31 // tha they need a place to jump to on a break statement, add the break label 32 // to the body of statements 33 void MLEMutator::fixBlock( std::list< Statement * > &kids ) { 28 CompoundStmt* MLEMutator::mutate( CompoundStmt *cmpndStmt ) { 29 bool labeledBlock = false; 30 if ( !(cmpndStmt->get_labels().empty()) ) { 31 labeledBlock = true; 32 enclosingBlocks.push_back( Entry( cmpndStmt ) ); 33 } // if 34 35 std::list< Statement * > &kids = cmpndStmt->get_kids(); 34 36 for ( std::list< Statement * >::iterator k = kids.begin(); k != kids.end(); k++ ) { 35 37 *k = (*k)->acceptMutator(*this); 36 38 37 39 if ( ! get_breakLabel().empty() ) { 38 std::list< Statement * >::iterator next = k +1;40 std::list< Statement * >::iterator next = k; next++; 39 41 if ( next == kids.end() ) { 40 42 std::list<Label> ls; ls.push_back( get_breakLabel() ); … … 47 49 } // if 48 50 } // for 49 }50 51 CompoundStmt* MLEMutator::mutate( CompoundStmt *cmpndStmt ) {52 bool labeledBlock = !(cmpndStmt->get_labels().empty());53 if ( labeledBlock ) {54 Label brkLabel = generator->newLabel();55 enclosingBlocks.push_back( Entry( cmpndStmt, brkLabel ) );56 } // if57 58 // a child statement may set the break label59 // - if they do, attach it to the next statement60 std::list< Statement * > &kids = cmpndStmt->get_kids();61 fixBlock( kids );62 51 63 52 if ( labeledBlock ) { 64 53 assert( ! enclosingBlocks.empty() ); 65 if ( ! enclosingBlocks.back(). useBreakExit().empty() ) {66 set_breakLabel( enclosingBlocks.back(). useBreakExit() );54 if ( ! enclosingBlocks.back().get_breakExit().empty() ) { 55 set_breakLabel( enclosingBlocks.back().get_breakExit() ); 67 56 } 68 57 enclosingBlocks.pop_back(); 69 58 } // if 70 59 60 //mutateAll( cmpndStmt->get_kids(), *this ); 71 61 return cmpndStmt; 72 62 } 73 63 74 template< typename LoopClass > 75 Statement *MLEMutator::handleLoopStmt( LoopClass *loopStmt ) { 76 // remember this as the most recent enclosing loop, then mutate 77 // the body of the loop -- this will do SOMETHING with branch statements 78 // and will recursively do the same to nested loops 79 Label brkLabel = generator->newLabel("loopBreak"); 80 Label contLabel = generator->newLabel("loopContinue"); 81 enclosingLoops.push_back( Entry( loopStmt, brkLabel, contLabel ) ); 82 loopStmt->set_body ( loopStmt->get_body()->acceptMutator( *this ) ); 83 84 // sanity check that the enclosing loops have been popped correctly 64 Statement *MLEMutator::mutate( WhileStmt *whileStmt ) { 65 enclosingLoops.push_back( Entry( whileStmt ) ); 66 whileStmt->set_body ( whileStmt->get_body()->acceptMutator( *this ) ); 67 85 68 Entry &e = enclosingLoops.back(); 86 assert ( e == loopStmt ); 87 88 // generate labels as needed 89 loopStmt->set_body( mutateLoop( loopStmt->get_body(), e ) ); 69 assert ( e == whileStmt ); 70 whileStmt->set_body( mutateLoop( whileStmt->get_body(), e ) ); 90 71 enclosingLoops.pop_back(); 91 72 92 return loopStmt; 93 } 94 95 Statement *MLEMutator::mutate( CaseStmt *caseStmt ) { 96 caseStmt->set_condition( maybeMutate( caseStmt->get_condition(), *this ) ); 97 fixBlock( caseStmt->get_statements() ); 98 99 return caseStmt; 100 } 101 102 template< typename SwitchClass > 103 Statement *MLEMutator::handleSwitchStmt( SwitchClass *switchStmt ) { 104 // generate a label for breaking out of a labeled switch 105 Label brkLabel = generator->newLabel("switchBreak"); 106 enclosingSwitches.push_back( Entry(switchStmt, brkLabel) ); 107 mutateAll( switchStmt->get_branches(), *this ); 108 109 Entry &e = enclosingSwitches.back(); 110 assert ( e == switchStmt ); 111 112 // only generate break label if labeled break is used 113 if (e.isBreakUsed()) { 114 // for the purposes of keeping switch statements uniform (i.e. all statements that are 115 // direct children of a switch should be CastStmts), append the exit label + break to the 116 // last case statement; create a default case if there are no cases 117 std::list< Statement * > &branches = switchStmt->get_branches(); 118 if ( branches.empty() ) { 119 branches.push_back( CaseStmt::makeDefault() ); 120 } 121 122 if ( CaseStmt * c = dynamic_cast< CaseStmt * >( branches.back() ) ) { 123 std::list<Label> temp; temp.push_back( brkLabel ); 124 c->get_statements().push_back( new BranchStmt( temp, Label(""), BranchStmt::Break ) ); 125 } else assert(0); // as of this point, all branches of a switch are still CaseStmts 126 } 127 128 assert ( enclosingSwitches.back() == switchStmt ); 129 enclosingSwitches.pop_back(); 130 return switchStmt; 73 return whileStmt; 74 } 75 76 Statement *MLEMutator::mutate( ForStmt *forStmt ) { 77 enclosingLoops.push_back( Entry( forStmt ) ); 78 maybeMutate( forStmt->get_body(), *this ); 79 80 Entry &e = enclosingLoops.back(); 81 assert ( e == forStmt ); 82 forStmt->set_body( mutateLoop( forStmt->get_body(), e ) ); 83 enclosingLoops.pop_back(); 84 85 return forStmt; 131 86 } 132 87 … … 162 117 throw SemanticError("The target specified in the exit loop statement does not correspond to an enclosing control structure: " + originalTarget ); 163 118 164 // what about exiting innermost block or switch???165 119 if ( enclosingLoops.back() == (*check) ) 166 120 return branchStmt; // exit the innermost loop (labels unnecessary) 167 121 168 // branch error checks, get the appropriate label name and create a goto 169 Label exitLabel; 122 Label newLabel; 170 123 switch ( branchStmt->get_type() ) { 171 124 case BranchStmt::Break: 172 assert( check->useBreakExit() != ""); 173 exitLabel = check->useBreakExit(); 125 if ( check->get_breakExit() != "" ) { 126 newLabel = check->get_breakExit(); 127 } else { 128 newLabel = generator->newLabel(); 129 check->set_breakExit( newLabel ); 130 } // if 174 131 break; 175 132 case BranchStmt::Continue: 176 assert( check->useContExit() != ""); 177 exitLabel = check->useContExit(); 133 if ( check->get_contExit() != "" ) { 134 newLabel = check->get_contExit(); 135 } else { 136 newLabel = generator->newLabel(); 137 check->set_contExit( newLabel ); 138 } // if 178 139 break; 179 140 default: 180 assert(0); // shouldn't be here141 return 0; // shouldn't be here 181 142 } // switch 182 143 183 return new BranchStmt( std::list<Label>(), exitLabel, BranchStmt::Goto ); 144 return new BranchStmt( std::list<Label>(), newLabel, BranchStmt::Goto ); 145 } 146 147 template< typename SwitchClass > 148 Statement *handleSwitchStmt( SwitchClass *switchStmt, MLEMutator &mutator ) { 149 // set up some aliases so that the rest of the code isn't messy 150 typedef MLEMutator::Entry Entry; 151 LabelGenerator *generator = mutator.generator; 152 std::list< Entry > &enclosingSwitches = mutator.enclosingSwitches; 153 154 Label brkLabel = generator->newLabel(); 155 enclosingSwitches.push_back( Entry(switchStmt, "", brkLabel) ); 156 mutateAll( switchStmt->get_branches(), mutator ); { 157 // check if this is necessary (if there is a break to this point, otherwise do not generate 158 std::list<Label> temp; temp.push_back( brkLabel ); 159 switchStmt->get_branches().push_back( new BranchStmt( temp, Label(""), BranchStmt::Break ) ); 160 } 161 assert ( enclosingSwitches.back() == switchStmt ); 162 enclosingSwitches.pop_back(); 163 return switchStmt; 164 } 165 166 Statement *MLEMutator::mutate( SwitchStmt *switchStmt ) { 167 return handleSwitchStmt( switchStmt, *this ); 168 } 169 170 Statement *MLEMutator::mutate( ChooseStmt *switchStmt ) { 171 return handleSwitchStmt( switchStmt, *this ); 184 172 } 185 173 186 174 Statement *MLEMutator::mutateLoop( Statement *bodyLoop, Entry &e ) { 187 // ensure loop body is a block188 175 CompoundStmt *newBody; 189 176 if ( ! (newBody = dynamic_cast<CompoundStmt *>( bodyLoop )) ) { … … 192 179 } // if 193 180 194 // only generate these when needed 195 196 if ( e.isContUsed() ) { 197 // continue label goes in the body as the last statement 198 std::list< Label > labels; labels.push_back( e.useContExit() ); 199 newBody->get_kids().push_back( new NullStmt( labels ) ); 200 } 201 202 if ( e.isBreakUsed() ) { 203 // break label goes after the loop -- it'll get set by the 204 // outer mutator if we do this 205 set_breakLabel( e.useBreakExit() ); 206 } 181 Label endLabel = e.get_contExit(); 182 183 if ( e.get_breakExit() != "" ) { 184 if ( endLabel == "" ) endLabel = generator->newLabel(); 185 // check for whether this label is used or not, so as to not generate extraneous gotos 186 if (e.breakExitUsed) 187 newBody->get_kids().push_back( new BranchStmt( std::list< Label >(), endLabel, BranchStmt::Goto ) ); 188 // xxx 189 //std::list< Label > ls; ls.push_back( e.get_breakExit() ); 190 set_breakLabel( e.get_breakExit() ); 191 //newBody->get_kids().push_back( new BranchStmt( ls, "", BranchStmt::Break ) ); 192 } // if 193 194 if ( e.get_breakExit() != "" || e.get_contExit() != "" ) { 195 if (dynamic_cast< NullStmt *>( newBody->get_kids().back() )) 196 newBody->get_kids().back()->get_labels().push_back( endLabel ); 197 else { 198 std::list < Label > ls; ls.push_back( endLabel ); 199 newBody->get_kids().push_back( new NullStmt( ls ) ); 200 } // if 201 } // if 207 202 208 203 return newBody; 209 204 } 210 205 211 Statement *MLEMutator::mutate( WhileStmt *whileStmt ) { 212 return handleLoopStmt( whileStmt ); 213 } 214 215 Statement *MLEMutator::mutate( ForStmt *forStmt ) { 216 return handleLoopStmt( forStmt ); 217 } 218 219 Statement *MLEMutator::mutate( SwitchStmt *switchStmt ) { 220 return handleSwitchStmt( switchStmt ); 221 } 222 223 Statement *MLEMutator::mutate( ChooseStmt *switchStmt ) { 224 return handleSwitchStmt( switchStmt ); 225 } 226 206 //*** Entry's methods 207 void MLEMutator::Entry::set_contExit( Label l ) { 208 assert ( contExit == "" || contExit == l ); 209 contExit = l; 210 } 211 212 void MLEMutator::Entry::set_breakExit( Label l ) { 213 assert ( breakExit == "" || breakExit == l ); 214 breakExit = l; 215 } 227 216 } // namespace ControlStruct 228 217 -
src/ControlStruct/MLEMutator.h
r9a8930f ra61fea9a 10 10 // Created On : Mon May 18 07:44:20 2015 11 11 // Last Modified By : Rob Schluntz 12 // Last Modified On : Wed Jun 03 15:06:36201513 // Update Count : 2512 // Last Modified On : Tue May 26 15:04:21 2015 13 // Update Count : 7 14 14 // 15 15 … … 38 38 Statement *mutate( BranchStmt *branchStmt ) throw ( SemanticError ); 39 39 40 Statement *mutate( CaseStmt *caseStmt );41 40 Statement *mutate( SwitchStmt *switchStmt ); 42 41 Statement *mutate( ChooseStmt *switchStmt ); … … 49 48 class Entry { 50 49 public: 51 explicit Entry( Statement *_loop , Label _breakExit, Label _contExit = Label("") ) :52 loop( _loop ), breakExit( _breakExit ), contExit( _contExit ), breakUsed(false), contUsed(false) {}50 explicit Entry( Statement *_loop = 0, Label _contExit = Label(""), Label _breakExit = Label("") ) : 51 loop( _loop ), contExit( _contExit ), breakExit( _breakExit ), contExitUsed( false ), breakExitUsed( false ) {} 53 52 54 53 bool operator==( const Statement *stmt ) { return ( loop == stmt ); } … … 59 58 Statement *get_loop() const { return loop; } 60 59 61 Label useContExit() { contUsed = true;return contExit; }62 Label useBreakExit() { breakUsed = true; return breakExit; }60 Label get_contExit() const { return contExit; } 61 void set_contExit( Label ); 63 62 64 bool isContUsed() const { return contUsed; }65 bool isBreakUsed() const { return breakUsed; }63 Label get_breakExit() const { return breakExit; } 64 void set_breakExit( Label ); 66 65 67 66 private: 68 67 Statement *loop; 69 Label breakExit, contExit; 70 bool breakUsed, contUsed; 68 Label contExit, breakExit; 69 public: // hack, provide proper [sg]etters 70 bool contExitUsed, breakExitUsed; 71 71 }; 72 72 … … 76 76 LabelGenerator *generator; 77 77 78 template< typename LoopClass >79 Statement *handleLoopStmt( LoopClass *loopStmt );80 81 78 template< typename SwitchClass > 82 Statement *handleSwitchStmt( SwitchClass *switchStmt ); 83 84 void fixBlock( std::list< Statement * > &kids ); 79 friend Statement *handleSwitchStmt( SwitchClass *switchStmt, MLEMutator &mutator ); 85 80 }; 86 81 } // namespace ControlStruct -
src/ControlStruct/Mutate.cc
r9a8930f ra61fea9a 9 9 // Author : Rodolfo G. Esteves 10 10 // Created On : Mon May 18 07:44:20 2015 11 // Last Modified By : Rob Schluntz12 // Last Modified On : Wed Jun 03 23:08:43201513 // Update Count : 511 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Tue May 19 15:32:52 2015 13 // Update Count : 2 14 14 // 15 15 … … 37 37 void mutate( std::list< Declaration * > translationUnit ) { 38 38 // ForExprMutator formut; 39 40 // normalizes label definitions and generates multi-level41 // exit labels42 39 LabelFixer lfix; 43 44 // transform choose statements into switch statements45 40 ChooseMutator chmut; 46 47 // expand case ranges and turn fallthru into a null statement48 41 CaseRangeMutator ranges; // has to run after ChooseMutator 49 50 42 //ExceptMutator exc; 51 43 // LabelTypeChecker lbl; -
src/SynTree/Mutator.h
r9a8930f ra61fea9a 9 9 // Author : Richard C. Bilson 10 10 // Created On : Mon May 18 07:44:20 2015 11 // Last Modified By : Rob Schluntz12 // Last Modified On : Fri May 29 16:34:08 201513 // Update Count : 411 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Mon May 18 10:12:28 2015 13 // Update Count : 3 14 14 // 15 15 #include <cassert> … … 104 104 assert( newnode ); 105 105 return newnode; 106 /// return tree->acceptMutator( mutator ); 106 107 } else { 107 108 return 0; -
src/SynTree/ObjectDecl.cc
r9a8930f ra61fea9a 9 9 // Author : Richard C. Bilson 10 10 // Created On : Mon May 18 07:44:20 2015 11 // Last Modified By : Rob Schluntz12 // Last Modified On : Thu May 28 14:10:02201513 // Update Count : 811 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Mon May 18 10:14:18 2015 13 // Update Count : 2 14 14 // 15 15 … … 65 65 66 66 void ObjectDecl::printShort( std::ostream &os, int indent ) const { 67 #if 068 if ( get_mangleName() != "") {69 os << get_mangleName() << ": a ";70 } else71 #endif72 67 if ( get_name() != "" ) { 73 68 os << get_name() << ": a "; -
src/SynTree/Statement.cc
r9a8930f ra61fea9a 10 10 // Created On : Mon May 18 07:44:20 2015 11 11 // Last Modified By : Rob Schluntz 12 // Last Modified On : Tue Jun 02 13:07:09201513 // Update Count : 1412 // Last Modified On : Wed May 27 15:41:13 2015 13 // Update Count : 8 14 14 // 15 15 … … 124 124 CaseStmt::~CaseStmt() { 125 125 delete condition; 126 }127 128 CaseStmt * CaseStmt::makeDefault( std::list<Label> labels, std::list<Statement *> branches ) {129 return new CaseStmt( labels, 0, branches, true );130 126 } 131 127 -
src/SynTree/Statement.h
r9a8930f ra61fea9a 10 10 // Created On : Mon May 18 07:44:20 2015 11 11 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Thu Jun 4 14:03:31201513 // Update Count : 1412 // Last Modified On : Wed Jun 3 11:55:15 2015 13 // Update Count : 6 14 14 // 15 15 … … 149 149 std::list<Statement *> &stmts, bool isdef = false ) throw(SemanticError); 150 150 virtual ~CaseStmt(); 151 152 static CaseStmt * makeDefault( std::list<Label> labels = std::list<Label>(),153 std::list<Statement *> stmts = std::list<Statement *>() );154 151 155 152 bool isDefault() { return _isDefault; } -
src/examples/control_structures.c
r9a8930f ra61fea9a 10 10 // Created On : Wed May 27 17:56:53 2015 11 11 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Thu Jun 4 1 4:02:50201513 // Update Count : 2 412 // Last Modified On : Thu Jun 4 11:21:12 2015 13 // Update Count : 23 14 14 // 15 15
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