Changes in src/GenPoly/Box.cc [eada3cf:4573e3c]
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src/GenPoly/Box.cc
reada3cf r4573e3c 32 32 #include "Common/UniqueName.h" // for UniqueName 33 33 #include "Common/utility.h" // for toString 34 #include "DeclMutator.h" // for DeclMutator35 34 #include "FindFunction.h" // for findFunction, findAndReplace... 36 35 #include "GenPoly/ErasableScopedMap.h" // for ErasableScopedMap<>::const_i... … … 39 38 #include "Lvalue.h" // for generalizedLvalue 40 39 #include "Parser/LinkageSpec.h" // for C, Spec, Cforall, Intrinsic 41 #include "PolyMutator.h" // for PolyMutator42 40 #include "ResolvExpr/TypeEnvironment.h" // for EqvClass 43 41 #include "ResolvExpr/typeops.h" // for typesCompatible … … 62 60 FunctionType *makeAdapterType( FunctionType *adaptee, const TyVarMap &tyVars ); 63 61 62 class BoxPass { 63 protected: 64 BoxPass() : scopeTyVars( TypeDecl::Data{} ) {} 65 TyVarMap scopeTyVars; 66 }; 67 64 68 /// Adds layout-generation functions to polymorphic types 65 class LayoutFunctionBuilder final : public DeclMutator{66 unsigned int functionNesting ; // current level of nested functions69 class LayoutFunctionBuilder final : public WithDeclsToAdd, public WithVisitorRef<LayoutFunctionBuilder>, public WithShortCircuiting { 70 unsigned int functionNesting = 0; // current level of nested functions 67 71 public: 68 LayoutFunctionBuilder() : functionNesting( 0 ) {} 69 70 using DeclMutator::mutate; 71 virtual DeclarationWithType *mutate( FunctionDecl *functionDecl ) override; 72 virtual Declaration *mutate( StructDecl *structDecl ) override; 73 virtual Declaration *mutate( UnionDecl *unionDecl ) override; 72 void previsit( FunctionDecl *functionDecl ); 73 void previsit( StructDecl *structDecl ); 74 void previsit( UnionDecl *unionDecl ); 74 75 }; 75 76 76 77 /// Replaces polymorphic return types with out-parameters, replaces calls to polymorphic functions with adapter calls as needed, and adds appropriate type variables to the function call 77 class Pass1 final : public PolyMutator{78 class Pass1 final : public BoxPass, public WithTypeSubstitution, public WithStmtsToAdd, public WithGuards, public WithVisitorRef<Pass1>, public WithShortCircuiting { 78 79 public: 79 80 Pass1(); 80 81 81 using PolyMutator::mutate; 82 virtual Expression *mutate( ApplicationExpr *appExpr ) override; 83 virtual Expression *mutate( AddressExpr *addrExpr ) override; 84 virtual Expression *mutate( UntypedExpr *expr ) override; 85 virtual DeclarationWithType* mutate( FunctionDecl *functionDecl ) override; 86 virtual TypeDecl *mutate( TypeDecl *typeDecl ) override; 87 virtual Expression *mutate( CommaExpr *commaExpr ) override; 88 virtual Expression *mutate( ConditionalExpr *condExpr ) override; 89 virtual Statement * mutate( ReturnStmt *returnStmt ) override; 90 virtual Type *mutate( PointerType *pointerType ) override; 91 virtual Type * mutate( FunctionType *functionType ) override; 92 93 virtual void doBeginScope() override; 94 virtual void doEndScope() override; 82 void premutate( FunctionDecl * functionDecl ); 83 void premutate( TypeDecl * typeDecl ); 84 void premutate( CommaExpr * commaExpr ); 85 Expression * postmutate( ApplicationExpr * appExpr ); 86 Expression * postmutate( UntypedExpr *expr ); 87 void premutate( AddressExpr * addrExpr ); 88 Expression * postmutate( AddressExpr * addrExpr ); 89 void premutate( ReturnStmt * returnStmt ); 90 void premutate( PointerType * pointerType ); 91 void premutate( FunctionType * functionType ); 92 93 void beginScope(); 94 void endScope(); 95 95 private: 96 96 /// Pass the extra type parameters from polymorphic generic arguments or return types into a function application … … 129 129 /// * Moves polymorphic returns in function types to pointer-type parameters 130 130 /// * adds type size and assertion parameters to parameter lists 131 class Pass2 final : public PolyMutator { 132 public: 133 template< typename DeclClass > 134 DeclClass *handleDecl( DeclClass *decl ); 135 template< typename AggDecl > 136 AggDecl * handleAggDecl( AggDecl * aggDecl ); 137 138 typedef PolyMutator Parent; 139 using Parent::mutate; 140 virtual DeclarationWithType *mutate( FunctionDecl *functionDecl ) override; 141 virtual ObjectDecl *mutate( ObjectDecl *objectDecl ) override; 142 virtual StructDecl *mutate( StructDecl *structDecl ) override; 143 virtual UnionDecl *mutate( UnionDecl *unionDecl ) override; 144 virtual TraitDecl *mutate( TraitDecl *unionDecl ) override; 145 virtual TypeDecl *mutate( TypeDecl *typeDecl ) override; 146 virtual TypedefDecl *mutate( TypedefDecl *typedefDecl ) override; 147 virtual Type *mutate( PointerType *pointerType ) override; 148 virtual Type *mutate( FunctionType *funcType ) override; 131 struct Pass2 final : public BoxPass, public WithGuards { 132 void handleAggDecl(); 133 134 DeclarationWithType * postmutate( FunctionDecl *functionDecl ); 135 void premutate( StructDecl *structDecl ); 136 void premutate( UnionDecl *unionDecl ); 137 void premutate( TraitDecl *unionDecl ); 138 void premutate( TypeDecl *typeDecl ); 139 void premutate( PointerType *pointerType ); 140 void premutate( FunctionType *funcType ); 149 141 150 142 private: … … 158 150 /// * Calculates polymorphic offsetof expressions from offset array 159 151 /// * Inserts dynamic calculation of polymorphic type layouts where needed 160 class PolyGenericCalculator final : public WithGuards, public WithVisitorRef<PolyGenericCalculator>, public WithStmtsToAdd, public WithDeclsToAdd, public WithTypeSubstitution {152 class PolyGenericCalculator final : public BoxPass, public WithGuards, public WithVisitorRef<PolyGenericCalculator>, public WithStmtsToAdd, public WithDeclsToAdd, public WithTypeSubstitution { 161 153 public: 162 154 PolyGenericCalculator(); … … 197 189 ScopedSet< std::string > knownOffsets; ///< Set of non-generic types for which the offset array exists in the current scope, indexed by offsetofName 198 190 UniqueName bufNamer; ///< Namer for VLA buffers 199 TyVarMap scopeTyVars;200 191 }; 201 192 202 193 /// Replaces initialization of polymorphic values with alloca, declaration of dtype/ftype with appropriate void expression, sizeof expressions of polymorphic types with the proper variable, and strips fields from generic struct declarations. 203 class Pass3 final : public PolyMutator { 204 public: 194 struct Pass3 final : public BoxPass, public WithGuards { 205 195 template< typename DeclClass > 206 DeclClass *handleDecl( DeclClass *decl, Type *type ); 207 208 using PolyMutator::mutate; 209 virtual DeclarationWithType *mutate( FunctionDecl *functionDecl ) override; 210 virtual Declaration *mutate( StructDecl *structDecl ) override; 211 virtual Declaration *mutate( UnionDecl *unionDecl ) override; 212 virtual ObjectDecl *mutate( ObjectDecl *objectDecl ) override; 213 virtual TypedefDecl *mutate( TypedefDecl *objectDecl ) override; 214 virtual TypeDecl *mutate( TypeDecl *objectDecl ) override; 215 virtual Type *mutate( PointerType *pointerType ) override; 216 virtual Type *mutate( FunctionType *funcType ) override; 217 private: 196 void handleDecl( DeclClass * decl, Type * type ); 197 198 void premutate( ObjectDecl * objectDecl ); 199 void premutate( FunctionDecl * functionDecl ); 200 void premutate( TypedefDecl * typedefDecl ); 201 void premutate( StructDecl * structDecl ); 202 void premutate( UnionDecl * unionDecl ); 203 void premutate( TypeDecl * typeDecl ); 204 void premutate( PointerType * pointerType ); 205 void premutate( FunctionType * funcType ); 218 206 }; 219 207 } // anonymous namespace … … 247 235 248 236 void box( std::list< Declaration *>& translationUnit ) { 249 LayoutFunctionBuilderlayoutBuilder;250 Pass 1pass1;251 Pass 2pass2;237 PassVisitor<LayoutFunctionBuilder> layoutBuilder; 238 PassVisitor<Pass1> pass1; 239 PassVisitor<Pass2> pass2; 252 240 PassVisitor<PolyGenericCalculator> polyCalculator; 253 Pass 3pass3;254 255 layoutBuilder.mutateDeclarationList( translationUnit);256 mutate TranslationUnit/*All*/( translationUnit, pass1 );257 mutate TranslationUnit/*All*/( translationUnit, pass2 );241 PassVisitor<Pass3> pass3; 242 243 acceptAll( translationUnit, layoutBuilder ); 244 mutateAll( translationUnit, pass1 ); 245 mutateAll( translationUnit, pass2 ); 258 246 mutateAll( translationUnit, polyCalculator ); 259 mutate TranslationUnit/*All*/( translationUnit, pass3 );247 mutateAll( translationUnit, pass3 ); 260 248 } 261 249 262 250 ////////////////////////////////// LayoutFunctionBuilder //////////////////////////////////////////// 263 251 264 DeclarationWithType *LayoutFunctionBuilder::mutate( FunctionDecl *functionDecl ) { 265 functionDecl->set_functionType( maybeMutate( functionDecl->get_functionType(), *this ) ); 252 void LayoutFunctionBuilder::previsit( FunctionDecl *functionDecl ) { 253 visit_children = false; 254 maybeAccept( functionDecl->get_functionType(), *visitor ); 266 255 ++functionNesting; 267 functionDecl->set_statements( maybeMutate( functionDecl->get_statements(), *this ));256 maybeAccept( functionDecl->get_statements(), *visitor ); 268 257 --functionNesting; 269 return functionDecl;270 258 } 271 259 … … 356 344 } 357 345 358 Declaration *LayoutFunctionBuilder::mutate( StructDecl *structDecl ) {346 void LayoutFunctionBuilder::previsit( StructDecl *structDecl ) { 359 347 // do not generate layout function for "empty" tag structs 360 if ( structDecl->get_members().empty() ) return structDecl; 348 visit_children = false; 349 if ( structDecl->get_members().empty() ) return; 361 350 362 351 // get parameters that can change layout, exiting early if none 363 352 std::list< TypeDecl* > otypeParams = takeOtypeOnly( structDecl->get_parameters() ); 364 if ( otypeParams.empty() ) return structDecl;353 if ( otypeParams.empty() ) return; 365 354 366 355 // build layout function signature … … 413 402 addStmt( layoutDecl->get_statements(), makeAlignTo( derefVar( sizeParam ), derefVar( alignParam ) ) ); 414 403 415 addDeclarationAfter( layoutDecl ); 416 return structDecl; 404 declsToAddAfter.push_back( layoutDecl ); 417 405 } 418 406 419 Declaration *LayoutFunctionBuilder::mutate( UnionDecl *unionDecl ) {407 void LayoutFunctionBuilder::previsit( UnionDecl *unionDecl ) { 420 408 // do not generate layout function for "empty" tag unions 421 if ( unionDecl->get_members().empty() ) return unionDecl; 409 visit_children = false; 410 if ( unionDecl->get_members().empty() ) return; 422 411 423 412 // get parameters that can change layout, exiting early if none 424 413 std::list< TypeDecl* > otypeParams = takeOtypeOnly( unionDecl->get_parameters() ); 425 if ( otypeParams.empty() ) return unionDecl;414 if ( otypeParams.empty() ) return; 426 415 427 416 // build layout function signature … … 456 445 addStmt( layoutDecl->get_statements(), makeAlignTo( derefVar( sizeParam ), derefVar( alignParam ) ) ); 457 446 458 addDeclarationAfter( layoutDecl ); 459 return unionDecl; 447 declsToAddAfter.push_back( layoutDecl ); 460 448 } 461 449 … … 501 489 Pass1::Pass1() : tempNamer( "_temp" ) {} 502 490 503 DeclarationWithType *Pass1::mutate( FunctionDecl *functionDecl ) {491 void Pass1::premutate( FunctionDecl *functionDecl ) { 504 492 if ( functionDecl->get_statements() ) { // empty routine body ? 505 493 // std::cerr << "mutating function: " << functionDecl->get_mangleName() << std::endl; 506 doBeginScope(); 507 scopeTyVars.beginScope(); 508 509 DeclarationWithType *oldRetval = retval; 494 GuardScope( scopeTyVars ); 495 GuardValue( retval ); 510 496 511 497 // process polymorphic return value 512 498 retval = nullptr; 513 if ( isDynRet( functionDecl->get_functionType() ) && functionDecl->get_linkage() != LinkageSpec::C ) { 514 retval = functionDecl->get_functionType()->get_returnVals().front(); 499 FunctionType *functionType = functionDecl->type; 500 if ( isDynRet( functionType ) && functionDecl->linkage != LinkageSpec::C ) { 501 retval = functionType->returnVals.front(); 515 502 516 503 // give names to unnamed return values 517 if ( retval-> get_name()== "" ) {518 retval-> set_name( "_retparm" );519 retval-> set_linkage( LinkageSpec::C );504 if ( retval->name == "" ) { 505 retval->name = "_retparm"; 506 retval->linkage = LinkageSpec::C; 520 507 } // if 521 508 } // if 522 509 523 FunctionType *functionType = functionDecl->get_functionType(); 524 makeTyVarMap( functionDecl->get_functionType(), scopeTyVars ); 525 526 std::list< DeclarationWithType *> ¶mList = functionType->get_parameters(); 510 makeTyVarMap( functionType, scopeTyVars ); 511 512 std::list< DeclarationWithType *> ¶mList = functionType->parameters; 527 513 std::list< FunctionType *> functions; 528 for ( Type::ForallList::iterator tyVar = functionType-> get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {529 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)-> get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {514 for ( Type::ForallList::iterator tyVar = functionType->forall.begin(); tyVar != functionType->forall.end(); ++tyVar ) { 515 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->assertions.begin(); assert != (*tyVar)->assertions.end(); ++assert ) { 530 516 findFunction( (*assert)->get_type(), functions, scopeTyVars, needsAdapter ); 531 517 } // for … … 542 528 } // if 543 529 } // for 544 545 functionDecl->set_statements( functionDecl->get_statements()->acceptMutator( *this ) );546 547 scopeTyVars.endScope();548 retval = oldRetval;549 doEndScope();550 530 // std::cerr << "end function: " << functionDecl->get_mangleName() << std::endl; 551 531 } // if 552 return functionDecl; 553 } 554 555 TypeDecl *Pass1::mutate( TypeDecl *typeDecl ) { 532 } 533 534 void Pass1::premutate( TypeDecl *typeDecl ) { 556 535 addToTyVarMap( typeDecl, scopeTyVars ); 557 return dynamic_cast<TypeDecl*>( Mutator::mutate( typeDecl ) ); 558 } 559 560 Expression *Pass1::mutate( CommaExpr *commaExpr ) { 536 } 537 538 void Pass1::premutate( CommaExpr *commaExpr ) { 561 539 // Attempting to find application expressions that were mutated by the copy constructor passes 562 540 // to use an explicit return variable, so that the variable can be reused as a parameter to the … … 574 552 } 575 553 } 576 577 commaExpr->set_arg1( maybeMutate( commaExpr->get_arg1(), *this ) );578 commaExpr->set_arg2( maybeMutate( commaExpr->get_arg2(), *this ) );579 return commaExpr;580 }581 582 Expression *Pass1::mutate( ConditionalExpr *condExpr ) {583 condExpr->set_arg1( maybeMutate( condExpr->get_arg1(), *this ) );584 condExpr->set_arg2( maybeMutate( condExpr->get_arg2(), *this ) );585 condExpr->set_arg3( maybeMutate( condExpr->get_arg3(), *this ) );586 return condExpr;587 588 554 } 589 555 … … 634 600 635 601 // add size/align for generic types to parameter list 636 if ( ! appExpr->get_function()-> has_result()) return;602 if ( ! appExpr->get_function()->result ) return; 637 603 FunctionType *funcType = getFunctionType( appExpr->get_function()->get_result() ); 638 604 assert( funcType ); … … 659 625 ObjectDecl *Pass1::makeTemporary( Type *type ) { 660 626 ObjectDecl *newObj = new ObjectDecl( tempNamer.newName(), Type::StorageClasses(), LinkageSpec::C, 0, type, 0 ); 661 stmtsToAdd .push_back( new DeclStmt( noLabels, newObj ) );627 stmtsToAddBefore.push_back( new DeclStmt( noLabels, newObj ) ); 662 628 return newObj; 663 629 } … … 748 714 749 715 void Pass1::boxParam( Type *param, Expression *&arg, const TyVarMap &exprTyVars ) { 750 assertf( arg->has_result(), "arg does not have result: %s", toString( arg ).c_str() ); 751 if ( isPolyType( param, exprTyVars ) ) { 752 Type * newType = arg->get_result()->clone(); 716 assertf( arg->result, "arg does not have result: %s", toString( arg ).c_str() ); 717 if ( ! needsBoxing( param, arg->result, exprTyVars, env ) ) return; 718 719 if ( arg->result->get_lvalue() ) { 720 // argument expression may be CFA lvalue, but not C lvalue -- apply generalizedLvalue transformations. 721 // if ( VariableExpr * varExpr = dynamic_cast< VariableExpr * >( arg ) ) { 722 // if ( dynamic_cast<ArrayType *>( varExpr->var->get_type() ) ){ 723 // // temporary hack - don't box arrays, because &arr is not the same as &arr[0] 724 // return; 725 // } 726 // } 727 arg = generalizedLvalue( new AddressExpr( arg ) ); 728 if ( ! ResolvExpr::typesCompatible( param, arg->get_result(), SymTab::Indexer() ) ) { 729 // silence warnings by casting boxed parameters when the actual type does not match up with the formal type. 730 arg = new CastExpr( arg, param->clone() ); 731 } 732 } else { 733 // use type computed in unification to declare boxed variables 734 Type * newType = param->clone(); 753 735 if ( env ) env->apply( newType ); 754 std::unique_ptr<Type> manager( newType ); 755 if ( isPolyType( newType ) ) { 756 // if the argument's type is polymorphic, we don't need to box again! 757 return; 758 } else if ( arg->get_result()->get_lvalue() ) { 759 // argument expression may be CFA lvalue, but not C lvalue -- apply generalizedLvalue transformations. 760 // if ( VariableExpr * varExpr = dynamic_cast< VariableExpr * >( arg ) ) { 761 // if ( dynamic_cast<ArrayType *>( varExpr->var->get_type() ) ){ 762 // // temporary hack - don't box arrays, because &arr is not the same as &arr[0] 763 // return; 764 // } 765 // } 766 arg = generalizedLvalue( new AddressExpr( arg ) ); 767 if ( ! ResolvExpr::typesCompatible( param, arg->get_result(), SymTab::Indexer() ) ) { 768 // silence warnings by casting boxed parameters when the actual type does not match up with the formal type. 769 arg = new CastExpr( arg, param->clone() ); 770 } 771 } else { 772 // use type computed in unification to declare boxed variables 773 Type * newType = param->clone(); 774 if ( env ) env->apply( newType ); 775 ObjectDecl *newObj = new ObjectDecl( tempNamer.newName(), Type::StorageClasses(), LinkageSpec::C, 0, newType, 0 ); 776 newObj->get_type()->get_qualifiers() = Type::Qualifiers(); // TODO: is this right??? 777 stmtsToAdd.push_back( new DeclStmt( noLabels, newObj ) ); 778 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) ); // TODO: why doesn't this just use initialization syntax? 779 assign->get_args().push_back( new VariableExpr( newObj ) ); 780 assign->get_args().push_back( arg ); 781 stmtsToAdd.push_back( new ExprStmt( noLabels, assign ) ); 782 arg = new AddressExpr( new VariableExpr( newObj ) ); 783 } // if 736 ObjectDecl *newObj = ObjectDecl::newObject( tempNamer.newName(), newType, nullptr ); 737 newObj->get_type()->get_qualifiers() = Type::Qualifiers(); // TODO: is this right??? 738 stmtsToAddBefore.push_back( new DeclStmt( noLabels, newObj ) ); 739 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) ); // TODO: why doesn't this just use initialization syntax? 740 assign->get_args().push_back( new VariableExpr( newObj ) ); 741 assign->get_args().push_back( arg ); 742 stmtsToAddBefore.push_back( new ExprStmt( noLabels, assign ) ); 743 arg = new AddressExpr( new VariableExpr( newObj ) ); 784 744 } // if 745 } 746 747 // find instances of polymorphic type parameters 748 struct PolyFinder { 749 const TyVarMap * tyVars = nullptr; 750 bool found = false; 751 752 void previsit( TypeInstType * t ) { 753 if ( isPolyType( t, *tyVars ) ) { 754 found = true; 755 } 756 } 757 }; 758 759 // true if there is an instance of a polymorphic type parameter in t 760 bool hasPolymorphism( Type * t, const TyVarMap &tyVars ) { 761 PassVisitor<PolyFinder> finder; 762 finder.pass.tyVars = &tyVars; 763 maybeAccept( t, finder ); 764 return finder.pass.found; 785 765 } 786 766 … … 789 769 /// this gets rid of warnings from gcc. 790 770 void addCast( Expression *&actual, Type *formal, const TyVarMap &tyVars ) { 791 if ( getFunctionType( formal ) ) { 771 // type contains polymorphism, but isn't exactly a polytype, in which case it 772 // has some real actual type (e.g. unsigned int) and casting to void * is wrong 773 if ( hasPolymorphism( formal, tyVars ) && ! isPolyType( formal, tyVars ) ) { 792 774 Type * newType = formal->clone(); 793 775 newType = ScrubTyVars::scrub( newType, tyVars ); … … 797 779 798 780 void Pass1::boxParams( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ) { 799 for ( std::list< DeclarationWithType *>::const_iterator param = function->get_parameters().begin(); param != function-> get_parameters().end(); ++param, ++arg ) {800 assertf( arg != appExpr-> get_args().end(), "boxParams: missing argument for param %s to %s in %s", toString( *param ).c_str(), toString( function ).c_str(), toString( appExpr ).c_str() );781 for ( std::list< DeclarationWithType *>::const_iterator param = function->get_parameters().begin(); param != function->parameters.end(); ++param, ++arg ) { 782 assertf( arg != appExpr->args.end(), "boxParams: missing argument for param %s to %s in %s", toString( *param ).c_str(), toString( function ).c_str(), toString( appExpr ).c_str() ); 801 783 addCast( *arg, (*param)->get_type(), exprTyVars ); 802 784 boxParam( (*param)->get_type(), *arg, exprTyVars ); … … 807 789 std::list< Expression *>::iterator cur = arg; 808 790 for ( Type::ForallList::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) { 809 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)-> get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {791 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->assertions.begin(); assert != (*tyVar)->assertions.end(); ++assert ) { 810 792 InferredParams::const_iterator inferParam = appExpr->get_inferParams().find( (*assert)->get_uniqueId() ); 811 if ( inferParam == appExpr->get_inferParams().end() ) { 812 std::cerr << "looking for assertion: " << (*assert) << std::endl << appExpr << std::endl; 813 } 814 assertf( inferParam != appExpr->get_inferParams().end(), "NOTE: Explicit casts of polymorphic functions to compatible monomorphic functions are currently unsupported" ); 793 assertf( inferParam != appExpr->get_inferParams().end(), "addInferredParams missing inferred parameter: %s in: %s", toString( *assert ).c_str(), toString( appExpr ).c_str() ); 815 794 Expression *newExpr = inferParam->second.expr->clone(); 816 795 addCast( newExpr, (*assert)->get_type(), tyVars ); … … 822 801 823 802 void makeRetParm( FunctionType *funcType ) { 824 DeclarationWithType *retParm = funcType-> get_returnVals().front();803 DeclarationWithType *retParm = funcType->returnVals.front(); 825 804 826 805 // make a new parameter that is a pointer to the type of the old return value … … 835 814 // actually make the adapter type 836 815 FunctionType *adapter = adaptee->clone(); 837 // if ( ! adapter->get_returnVals().empty() && isPolyType( adapter->get_returnVals().front()->get_type(), tyVars ) ) {838 816 if ( isDynRet( adapter, tyVars ) ) { 839 817 makeRetParm( adapter ); … … 961 939 std::pair< AdapterIter, bool > answer = adapters.insert( std::pair< std::string, DeclarationWithType *>( mangleName, newAdapter ) ); 962 940 adapter = answer.first; 963 stmtsToAdd .push_back( new DeclStmt( noLabels, newAdapter ) );941 stmtsToAddBefore.push_back( new DeclStmt( noLabels, newAdapter ) ); 964 942 } // if 965 943 assert( adapter != adapters.end() ); … … 999 977 if ( varExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic ) { 1000 978 if ( varExpr->get_var()->get_name() == "?[?]" ) { 1001 assert( appExpr-> has_result());979 assert( appExpr->result ); 1002 980 assert( appExpr->get_args().size() == 2 ); 1003 981 Type *baseType1 = isPolyPtr( appExpr->get_args().front()->get_result(), scopeTyVars, env ); … … 1033 1011 } // if 1034 1012 } else if ( varExpr->get_var()->get_name() == "*?" ) { 1035 assert( appExpr-> has_result());1013 assert( appExpr->result ); 1036 1014 assert( ! appExpr->get_args().empty() ); 1037 1015 if ( isPolyType( appExpr->get_result(), scopeTyVars, env ) ) { … … 1050 1028 } // if 1051 1029 } else if ( varExpr->get_var()->get_name() == "?++" || varExpr->get_var()->get_name() == "?--" ) { 1052 assert( appExpr-> has_result());1030 assert( appExpr->result ); 1053 1031 assert( appExpr->get_args().size() == 1 ); 1054 1032 if ( Type *baseType = isPolyPtr( appExpr->get_result(), scopeTyVars, env ) ) { … … 1070 1048 } // if 1071 1049 } else if ( varExpr->get_var()->get_name() == "++?" || varExpr->get_var()->get_name() == "--?" ) { 1072 assert( appExpr-> has_result());1050 assert( appExpr->result ); 1073 1051 assert( appExpr->get_args().size() == 1 ); 1074 1052 if ( Type *baseType = isPolyPtr( appExpr->get_result(), scopeTyVars, env ) ) { … … 1076 1054 } // if 1077 1055 } else if ( varExpr->get_var()->get_name() == "?+?" || varExpr->get_var()->get_name() == "?-?" ) { 1078 assert( appExpr-> has_result());1056 assert( appExpr->result ); 1079 1057 assert( appExpr->get_args().size() == 2 ); 1080 1058 Type *baseType1 = isPolyPtr( appExpr->get_args().front()->get_result(), scopeTyVars, env ); … … 1102 1080 } // if 1103 1081 } else if ( varExpr->get_var()->get_name() == "?+=?" || varExpr->get_var()->get_name() == "?-=?" ) { 1104 assert( appExpr-> has_result());1082 assert( appExpr->result ); 1105 1083 assert( appExpr->get_args().size() == 2 ); 1106 1084 Type *baseType = isPolyPtr( appExpr->get_result(), scopeTyVars, env ); … … 1118 1096 } 1119 1097 1120 Expression *Pass1:: mutate( ApplicationExpr *appExpr ) {1098 Expression *Pass1::postmutate( ApplicationExpr *appExpr ) { 1121 1099 // std::cerr << "mutate appExpr: " << InitTweak::getFunctionName( appExpr ) << std::endl; 1122 1100 // for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) { … … 1124 1102 // } 1125 1103 // std::cerr << "\n"; 1126 appExpr->get_function()->acceptMutator( *this ); 1127 mutateAll( appExpr->get_args(), *this ); 1128 1129 assert( appExpr->get_function()->has_result() ); 1130 FunctionType * function = getFunctionType( appExpr->get_function()->get_result() ); 1131 assertf( function, "ApplicationExpr has non-function type: %s", toString( appExpr->get_function()->get_result() ).c_str() ); 1104 1105 assert( appExpr->function->result ); 1106 FunctionType * function = getFunctionType( appExpr->function->result ); 1107 assertf( function, "ApplicationExpr has non-function type: %s", toString( appExpr->function->result ).c_str() ); 1132 1108 1133 1109 if ( Expression *newExpr = handleIntrinsics( appExpr ) ) { … … 1182 1158 } 1183 1159 1184 Expression * Pass1::mutate( UntypedExpr *expr ) {1185 if ( expr-> has_result() && isPolyType( expr->get_result(), scopeTyVars, env ) ) {1186 if ( NameExpr *name = dynamic_cast< NameExpr *>( expr-> get_function()) ) {1160 Expression * Pass1::postmutate( UntypedExpr *expr ) { 1161 if ( expr->result && isPolyType( expr->result, scopeTyVars, env ) ) { 1162 if ( NameExpr *name = dynamic_cast< NameExpr *>( expr->function ) ) { 1187 1163 if ( name->get_name() == "*?" ) { 1188 Expression *ret = expr-> get_args().front();1189 expr-> get_args().clear();1164 Expression *ret = expr->args.front(); 1165 expr->args.clear(); 1190 1166 delete expr; 1191 return ret ->acceptMutator( *this );1167 return ret; 1192 1168 } // if 1193 1169 } // if 1194 1170 } // if 1195 return PolyMutator::mutate( expr ); 1196 } 1197 1198 Expression *Pass1::mutate( AddressExpr *addrExpr ) { 1199 assert( addrExpr->get_arg()->has_result() && ! addrExpr->get_arg()->get_result()->isVoid() ); 1171 return expr; 1172 } 1173 1174 void Pass1::premutate( AddressExpr * ) { visit_children = false; } 1175 Expression * Pass1::postmutate( AddressExpr * addrExpr ) { 1176 assert( addrExpr->get_arg()->result && ! addrExpr->get_arg()->get_result()->isVoid() ); 1200 1177 1201 1178 bool needs = false; 1202 1179 if ( UntypedExpr *expr = dynamic_cast< UntypedExpr *>( addrExpr->get_arg() ) ) { 1203 if ( expr-> has_result()&& isPolyType( expr->get_result(), scopeTyVars, env ) ) {1180 if ( expr->result && isPolyType( expr->get_result(), scopeTyVars, env ) ) { 1204 1181 if ( NameExpr *name = dynamic_cast< NameExpr *>( expr->get_function() ) ) { 1205 1182 if ( name->get_name() == "*?" ) { 1206 1183 if ( ApplicationExpr * appExpr = dynamic_cast< ApplicationExpr * >( expr->get_args().front() ) ) { 1207 assert( appExpr->get_function()-> has_result());1184 assert( appExpr->get_function()->result ); 1208 1185 FunctionType *function = getFunctionType( appExpr->get_function()->get_result() ); 1209 1186 assert( function ); … … 1216 1193 // isPolyType check needs to happen before mutating addrExpr arg, so pull it forward 1217 1194 // out of the if condition. 1218 addrExpr-> set_arg( mutateExpression( addrExpr->get_arg() ));1195 addrExpr->arg = addrExpr->get_arg()->acceptMutator( *visitor ); 1219 1196 // ... but must happen after mutate, since argument might change (e.g. intrinsic *?, ?[?]) - re-evaluate above comment 1220 1197 bool polytype = isPolyType( addrExpr->get_arg()->get_result(), scopeTyVars, env ); … … 1231 1208 } 1232 1209 1233 Statement * Pass1::mutate( ReturnStmt *returnStmt ) { 1234 if ( retval && returnStmt->get_expr() ) { 1235 assert( returnStmt->get_expr()->has_result() && ! returnStmt->get_expr()->get_result()->isVoid() ); 1236 delete returnStmt->get_expr(); 1237 returnStmt->set_expr( 0 ); 1238 } else { 1239 returnStmt->set_expr( mutateExpression( returnStmt->get_expr() ) ); 1210 void Pass1::premutate( ReturnStmt *returnStmt ) { 1211 if ( retval && returnStmt->expr ) { 1212 assert( returnStmt->expr->result && ! returnStmt->expr->result->isVoid() ); 1213 delete returnStmt->expr; 1214 returnStmt->expr = nullptr; 1240 1215 } // if 1241 return returnStmt; 1242 } 1243 1244 Type * Pass1::mutate( PointerType *pointerType ) { 1245 scopeTyVars.beginScope(); 1216 } 1217 1218 void Pass1::premutate( PointerType *pointerType ) { 1219 GuardScope( scopeTyVars ); 1246 1220 makeTyVarMap( pointerType, scopeTyVars ); 1247 1248 Type *ret = Mutator::mutate( pointerType ); 1249 1250 scopeTyVars.endScope(); 1251 return ret; 1252 } 1253 1254 Type * Pass1::mutate( FunctionType *functionType ) { 1255 scopeTyVars.beginScope(); 1221 } 1222 1223 void Pass1::premutate( FunctionType *functionType ) { 1224 GuardScope( scopeTyVars ); 1256 1225 makeTyVarMap( functionType, scopeTyVars ); 1257 1258 Type *ret = Mutator::mutate( functionType ); 1259 1260 scopeTyVars.endScope(); 1261 return ret; 1262 } 1263 1264 void Pass1::doBeginScope() { 1226 } 1227 1228 void Pass1::beginScope() { 1265 1229 adapters.beginScope(); 1266 1230 } 1267 1231 1268 void Pass1:: doEndScope() {1232 void Pass1::endScope() { 1269 1233 adapters.endScope(); 1270 1234 } … … 1293 1257 } 1294 1258 1295 template< typename DeclClass > 1296 DeclClass * Pass2::handleDecl( DeclClass *decl ) { 1297 DeclClass *ret = static_cast< DeclClass *>( Parent::mutate( decl ) ); 1298 1299 return ret; 1300 } 1301 1302 DeclarationWithType * Pass2::mutate( FunctionDecl *functionDecl ) { 1303 functionDecl = strict_dynamic_cast< FunctionDecl * > ( handleDecl( functionDecl ) ); 1259 DeclarationWithType * Pass2::postmutate( FunctionDecl *functionDecl ) { 1304 1260 FunctionType * ftype = functionDecl->get_functionType(); 1305 1261 if ( ! ftype->get_returnVals().empty() && functionDecl->get_statements() ) { … … 1325 1281 } 1326 1282 1327 ObjectDecl * Pass2::mutate( ObjectDecl *objectDecl ) { 1328 return handleDecl( objectDecl ); 1329 } 1330 1331 template< typename AggDecl > 1332 AggDecl * Pass2::handleAggDecl( AggDecl * aggDecl ) { 1283 void Pass2::premutate( StructDecl * ) { 1333 1284 // prevent tyVars from leaking into containing scope 1334 scopeTyVars.beginScope(); 1335 Parent::mutate( aggDecl ); 1336 scopeTyVars.endScope(); 1337 return aggDecl; 1338 } 1339 1340 StructDecl * Pass2::mutate( StructDecl *aggDecl ) { 1341 return handleAggDecl( aggDecl ); 1342 } 1343 1344 UnionDecl * Pass2::mutate( UnionDecl *aggDecl ) { 1345 return handleAggDecl( aggDecl ); 1346 } 1347 1348 TraitDecl * Pass2::mutate( TraitDecl *aggDecl ) { 1349 return handleAggDecl( aggDecl ); 1350 } 1351 1352 TypeDecl * Pass2::mutate( TypeDecl *typeDecl ) { 1285 GuardScope( scopeTyVars ); 1286 } 1287 1288 void Pass2::premutate( UnionDecl * ) { 1289 // prevent tyVars from leaking into containing scope 1290 GuardScope( scopeTyVars ); 1291 } 1292 1293 void Pass2::premutate( TraitDecl * ) { 1294 // prevent tyVars from leaking into containing scope 1295 GuardScope( scopeTyVars ); 1296 } 1297 1298 void Pass2::premutate( TypeDecl *typeDecl ) { 1353 1299 addToTyVarMap( typeDecl, scopeTyVars ); 1354 if ( typeDecl->get_base() ) { 1355 return handleDecl( typeDecl ); 1356 } else { 1357 return dynamic_cast<TypeDecl*>( Parent::mutate( typeDecl ) ); 1358 } 1359 } 1360 1361 TypedefDecl * Pass2::mutate( TypedefDecl *typedefDecl ) { 1362 return handleDecl( typedefDecl ); 1363 } 1364 1365 Type * Pass2::mutate( PointerType *pointerType ) { 1366 scopeTyVars.beginScope(); 1300 } 1301 1302 void Pass2::premutate( PointerType *pointerType ) { 1303 GuardScope( scopeTyVars ); 1367 1304 makeTyVarMap( pointerType, scopeTyVars ); 1368 1369 Type *ret = Parent::mutate( pointerType ); 1370 1371 scopeTyVars.endScope(); 1372 return ret; 1373 } 1374 1375 Type *Pass2::mutate( FunctionType *funcType ) { 1376 scopeTyVars.beginScope(); 1377 1305 } 1306 1307 void Pass2::premutate( FunctionType *funcType ) { 1308 GuardScope( scopeTyVars ); 1378 1309 makeTyVarMap( funcType, scopeTyVars ); 1379 1310 … … 1414 1345 // move all assertions into parameter list 1415 1346 for ( std::list< DeclarationWithType *>::iterator assert = (*tyParm)->get_assertions().begin(); assert != (*tyParm)->get_assertions().end(); ++assert ) { 1416 // *assert = (*assert)->acceptMutator( *this );1417 1347 // assertion parameters may not be used in body, pass along with unused attribute. 1418 1348 (*assert)->get_attributes().push_back( new Attribute( "unused" ) ); … … 1450 1380 } 1451 1381 } 1452 1453 1382 seenTypes.insert( typeName ); 1454 1383 } … … 1458 1387 funcType->get_parameters().splice( last, inferredParams ); 1459 1388 addAdapters( funcType ); 1460 mutateAll( funcType->get_returnVals(), *this );1461 mutateAll( funcType->get_parameters(), *this );1462 1463 scopeTyVars.endScope();1464 return funcType;1465 1389 } 1466 1390 … … 1468 1392 1469 1393 PolyGenericCalculator::PolyGenericCalculator() 1470 : knownLayouts(), knownOffsets(), bufNamer( "_buf" ) , scopeTyVars( TypeDecl::Data{} ){}1394 : knownLayouts(), knownOffsets(), bufNamer( "_buf" ) {} 1471 1395 1472 1396 void PolyGenericCalculator::beginTypeScope( Type *ty ) { … … 1829 1753 1830 1754 template< typename DeclClass > 1831 DeclClass * Pass3::handleDecl( DeclClass *decl, Type *type ) {1832 scopeTyVars.beginScope();1755 void Pass3::handleDecl( DeclClass * decl, Type * type ) { 1756 GuardScope( scopeTyVars ); 1833 1757 makeTyVarMap( type, scopeTyVars ); 1834 1835 DeclClass *ret = static_cast< DeclClass *>( Mutator::mutate( decl ) );1836 // ScrubTyVars::scrub( decl, scopeTyVars );1837 1758 ScrubTyVars::scrubAll( decl ); 1838 1839 scopeTyVars.endScope(); 1840 return ret; 1841 } 1842 1843 ObjectDecl * Pass3::mutate( ObjectDecl *objectDecl ) { 1844 return handleDecl( objectDecl, objectDecl->get_type() ); 1845 } 1846 1847 DeclarationWithType * Pass3::mutate( FunctionDecl *functionDecl ) { 1848 return handleDecl( functionDecl, functionDecl->get_functionType() ); 1849 } 1850 1851 TypedefDecl * Pass3::mutate( TypedefDecl *typedefDecl ) { 1852 return handleDecl( typedefDecl, typedefDecl->get_base() ); 1759 } 1760 1761 void Pass3::premutate( ObjectDecl * objectDecl ) { 1762 handleDecl( objectDecl, objectDecl->type ); 1763 } 1764 1765 void Pass3::premutate( FunctionDecl * functionDecl ) { 1766 handleDecl( functionDecl, functionDecl->type ); 1767 } 1768 1769 void Pass3::premutate( TypedefDecl * typedefDecl ) { 1770 handleDecl( typedefDecl, typedefDecl->base ); 1853 1771 } 1854 1772 1855 1773 /// Strips the members from a generic aggregate 1856 void stripGenericMembers(AggregateDecl * decl) {1857 if ( ! decl-> get_parameters().empty() ) decl->get_members().clear();1858 } 1859 1860 Declaration *Pass3::mutate( StructDecl *structDecl ) {1774 void stripGenericMembers(AggregateDecl * decl) { 1775 if ( ! decl->parameters.empty() ) decl->members.clear(); 1776 } 1777 1778 void Pass3::premutate( StructDecl * structDecl ) { 1861 1779 stripGenericMembers( structDecl ); 1862 return structDecl; 1863 } 1864 1865 Declaration *Pass3::mutate( UnionDecl *unionDecl ) { 1780 } 1781 1782 void Pass3::premutate( UnionDecl * unionDecl ) { 1866 1783 stripGenericMembers( unionDecl ); 1867 return unionDecl; 1868 } 1869 1870 TypeDecl * Pass3::mutate( TypeDecl *typeDecl ) { 1871 // Initializer *init = 0; 1872 // std::list< Expression *> designators; 1873 // addToTyVarMap( typeDecl, scopeTyVars ); 1874 // if ( typeDecl->get_base() ) { 1875 // init = new SimpleInit( new SizeofExpr( handleDecl( typeDecl, typeDecl->get_base() ) ), designators ); 1876 // } 1877 // return new ObjectDecl( typeDecl->get_name(), Declaration::Extern, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::UnsignedInt ), init ); 1878 1784 } 1785 1786 void Pass3::premutate( TypeDecl * typeDecl ) { 1879 1787 addToTyVarMap( typeDecl, scopeTyVars ); 1880 return dynamic_cast<TypeDecl*>( Mutator::mutate( typeDecl ) ); 1881 } 1882 1883 Type * Pass3::mutate( PointerType *pointerType ) { 1884 scopeTyVars.beginScope(); 1788 } 1789 1790 void Pass3::premutate( PointerType * pointerType ) { 1791 GuardScope( scopeTyVars ); 1885 1792 makeTyVarMap( pointerType, scopeTyVars ); 1886 1887 Type *ret = Mutator::mutate( pointerType ); 1888 1889 scopeTyVars.endScope(); 1890 return ret; 1891 } 1892 1893 Type * Pass3::mutate( FunctionType *functionType ) { 1894 scopeTyVars.beginScope(); 1793 } 1794 1795 void Pass3::premutate( FunctionType * functionType ) { 1796 GuardScope( scopeTyVars ); 1895 1797 makeTyVarMap( functionType, scopeTyVars ); 1896 1897 Type *ret = Mutator::mutate( functionType );1898 1899 scopeTyVars.endScope();1900 return ret;1901 1798 } 1902 1799 } // anonymous namespace
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