Changeset b56ad5e for src/ControlStruct
- Timestamp:
- Feb 4, 2022, 10:10:34 PM (4 years ago)
- Branches:
- ADT, ast-experimental, enum, forall-pointer-decay, master, pthread-emulation, qualifiedEnum
- Children:
- f8143a6
- Parents:
- 5f3ba11 (diff), 67e86ae6 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the(diff)links above to see all the changes relative to each parent. - Location:
- src/ControlStruct
- Files:
-
- 4 added
- 14 edited
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ExceptTranslateNew.cpp (modified) (1 diff)
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FixLabels.cpp (modified) (8 diffs)
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FixLabels.hpp (modified) (2 diffs)
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ForExprMutator.cc (modified) (2 diffs)
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ForExprMutator.h (modified) (3 diffs)
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HoistControlDecls.cpp (added)
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HoistControlDecls.hpp (added)
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LabelFixer.cc (modified) (2 diffs)
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LabelFixer.h (modified) (2 diffs)
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LabelGenerator.cc (modified) (3 diffs)
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LabelGenerator.h (modified) (2 diffs)
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LabelGeneratorNew.cpp (added)
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LabelGeneratorNew.hpp (added)
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MLEMutator.cc (modified) (6 diffs)
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MLEMutator.h (modified) (3 diffs)
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MultiLevelExit.cpp (modified) (22 diffs)
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MultiLevelExit.hpp (modified) (2 diffs)
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module.mk (modified) (2 diffs)
Legend:
- Unmodified
- Added
- Removed
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src/ControlStruct/ExceptTranslateNew.cpp
r5f3ba11 rb56ad5e 9 9 // Author : Andrew Beach 10 10 // Created On : Mon Nov 8 11:53:00 2021 11 // Last Modified By : Andrew Beach12 // Last Modified On : Mon Nov 8 16:50:00 202113 // Update Count : 011 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Mon Jan 31 18:49:58 2022 13 // Update Count : 1 14 14 // 15 15 -
src/ControlStruct/FixLabels.cpp
r5f3ba11 rb56ad5e 9 9 // Author : Andrew Beach 10 10 // Created On : Mon Nov 1 09:39:00 2021 11 // Last Modified By : Andrew Beach12 // Last Modified On : Mon Nov 8 10:53:00 202113 // Update Count : 311 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Mon Jan 31 22:19:17 2022 13 // Update Count : 9 14 14 // 15 15 … … 20 20 #include "AST/Stmt.hpp" 21 21 #include "ControlStruct/MultiLevelExit.hpp" 22 using namespace ast; 22 23 23 24 namespace ControlStruct { 24 25 namespace { 26 27 class FixLabelsCore final : public ast::WithGuards { 25 class FixLabelsCore final : public WithGuards { 28 26 LabelToStmt labelTable; 29 public:27 public: 30 28 FixLabelsCore() : labelTable() {} 31 29 32 void previsit( const ast::FunctionDecl * );33 const ast::FunctionDecl * postvisit( const ast::FunctionDecl * );34 void previsit( const ast::Stmt * );35 void previsit( const ast::BranchStmt * );36 void previsit( const ast::LabelAddressExpr * );30 void previsit( const FunctionDecl * ); 31 const FunctionDecl * postvisit( const FunctionDecl * ); 32 void previsit( const Stmt * ); 33 void previsit( const BranchStmt * ); 34 void previsit( const LabelAddressExpr * ); 37 35 38 void setLabelsDef( const std::vector< ast::Label> &, const ast::Stmt * );39 void setLabelsUsage( const ast::Label & );36 void setLabelsDef( const std::vector<Label> &, const Stmt * ); 37 void setLabelsUsage( const Label & ); 40 38 }; 41 39 42 void FixLabelsCore::previsit( const ast::FunctionDecl * ) {40 void FixLabelsCore::previsit( const FunctionDecl * ) { 43 41 GuardValue( labelTable ).clear(); 44 42 } 45 43 46 const ast::FunctionDecl * FixLabelsCore::postvisit(47 const ast::FunctionDecl * decl ) {44 const FunctionDecl * FixLabelsCore::postvisit( 45 const FunctionDecl * decl ) { 48 46 if ( nullptr == decl->stmts ) return decl; 49 47 for ( auto kvp : labelTable ) { 50 48 if ( nullptr == kvp.second ) { 51 49 SemanticError( kvp.first.location, 52 "Use of undefined label: " + kvp.first.name );50 "Use of undefined label: " + kvp.first.name ); 53 51 } 54 52 } 55 return ast::mutate_field( decl, &ast::FunctionDecl::stmts,56 multiLevelExitUpdate( decl->stmts.get(), labelTable ) );53 return mutate_field( decl, &FunctionDecl::stmts, 54 multiLevelExitUpdate( decl->stmts.get(), labelTable ) ); 57 55 } 58 56 59 void FixLabelsCore::previsit( const ast::Stmt * stmt ) {57 void FixLabelsCore::previsit( const Stmt * stmt ) { 60 58 if ( !stmt->labels.empty() ) { 61 59 setLabelsDef( stmt->labels, stmt ); … … 63 61 } 64 62 65 void FixLabelsCore::previsit( const ast::BranchStmt * stmt ) {63 void FixLabelsCore::previsit( const BranchStmt * stmt ) { 66 64 if ( !stmt->labels.empty() ) { 67 65 setLabelsDef( stmt->labels, stmt ); … … 72 70 } 73 71 74 void FixLabelsCore::previsit( const ast::LabelAddressExpr * expr ) {72 void FixLabelsCore::previsit( const LabelAddressExpr * expr ) { 75 73 assert( !expr->arg.empty() ); 76 74 setLabelsUsage( expr->arg ); … … 78 76 79 77 void FixLabelsCore::setLabelsDef( 80 const std::vector<ast::Label> & labels, const ast::Stmt * stmt ) {78 const std::vector<Label> & labels, const Stmt * stmt ) { 81 79 assert( !labels.empty() ); 82 80 assert( stmt ); … … 89 87 // Duplicate definition, this is an error. 90 88 SemanticError( label.location, 91 "Duplicate definition of label: " + label.name );89 "Duplicate definition of label: " + label.name ); 92 90 } else { 93 91 // Perviously used, but not defined until now. … … 98 96 99 97 // Label was used, if it is new add it to the table. 100 void FixLabelsCore::setLabelsUsage( const ast::Label & label ) {98 void FixLabelsCore::setLabelsUsage( const Label & label ) { 101 99 if ( labelTable.find( label ) == labelTable.end() ) { 102 100 labelTable[ label ] = nullptr; … … 104 102 } 105 103 106 } // namespace 107 108 void fixLabels( ast::TranslationUnit & translationUnit ) { 109 ast::Pass<FixLabelsCore>::run( translationUnit ); 104 void fixLabels( TranslationUnit & translationUnit ) { 105 Pass<FixLabelsCore>::run( translationUnit ); 110 106 } 111 112 107 } // namespace ControlStruct 113 108 -
src/ControlStruct/FixLabels.hpp
r5f3ba11 rb56ad5e 9 9 // Author : Andrew Beach 10 10 // Created On : Mon Nov 1 09:36:00 2021 11 // Last Modified By : Andrew Beach12 // Last Modified On : Mon Nov 1 09:40:00 202113 // Update Count : 011 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Mon Jan 31 22:18:43 2022 13 // Update Count : 2 14 14 // 15 15 … … 17 17 18 18 namespace ast { 19 class TranslationUnit;19 class TranslationUnit; 20 20 } 21 21 22 22 namespace ControlStruct { 23 24 /// normalizes label definitions and generates multi-level exit labels 23 // normalizes label definitions and generates multi-level exit labels 25 24 void fixLabels( ast::TranslationUnit & translationUnit ); 26 27 25 } 28 26 -
src/ControlStruct/ForExprMutator.cc
r5f3ba11 rb56ad5e 10 10 // Created On : Mon May 18 07:44:20 2015 11 11 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Mon Mar 11 22:26:52 201913 // Update Count : 1 412 // Last Modified On : Tue Feb 1 09:26:12 2022 13 // Update Count : 16 14 14 // 15 15 … … 45 45 return hoist( forStmt, forStmt->initialization ); 46 46 } 47 Statement * ForExprMutator::postmutate( While Stmt * whileStmt ) {48 return hoist( while Stmt, whileStmt->initialization );47 Statement * ForExprMutator::postmutate( WhileDoStmt * whileDoStmt ) { 48 return hoist( whileDoStmt, whileDoStmt->initialization ); 49 49 } 50 50 } // namespace ControlStruct -
src/ControlStruct/ForExprMutator.h
r5f3ba11 rb56ad5e 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 Aug 17 15:32:48 201713 // Update Count : 512 // Last Modified On : Tue Feb 1 09:18:50 2022 13 // Update Count : 7 14 14 // 15 15 … … 18 18 class IfStmt; 19 19 class ForStmt; 20 class While Stmt;20 class WhileDoStmt; 21 21 class Statement; 22 22 … … 24 24 class ForExprMutator { 25 25 public: 26 Statement * postmutate( IfStmt * );27 Statement * postmutate( ForStmt * );28 Statement * postmutate( WhileStmt * );26 Statement * postmutate( IfStmt * ); 27 Statement * postmutate( ForStmt * ); 28 Statement * postmutate( WhileDoStmt * ); 29 29 }; 30 30 } // namespace ControlStruct -
src/ControlStruct/LabelFixer.cc
r5f3ba11 rb56ad5e 9 9 // Author : Rodolfo G. Esteves 10 10 // Created On : Mon May 18 07:44:20 2015 11 // Last Modified By : Andrew Beach12 // Last Modified On : Tue Jan 21 10:32:00 202013 // Update Count : 16 011 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Tue Feb 1 09:12:09 2022 13 // Update Count : 162 14 14 // 15 15 … … 27 27 28 28 namespace ControlStruct { 29 bool LabelFixer::Entry::insideLoop() { 30 return ( dynamic_cast< ForStmt * > ( definition ) || 31 dynamic_cast< WhileStmt * > ( definition ) ); 29 bool LabelFixer::Entry::insideLoop() { 30 return ( dynamic_cast< ForStmt * > ( definition ) || 31 dynamic_cast< WhileDoStmt * > ( definition ) ); 32 } 33 34 LabelFixer::LabelFixer( LabelGenerator * gen ) : generator ( gen ) { 35 if ( generator == 0 ) 36 generator = LabelGenerator::getGenerator(); 37 } 38 39 void LabelFixer::previsit( FunctionDecl * ) { 40 // need to go into a nested function in a fresh state 41 GuardValue( labelTable ); 42 labelTable.clear(); 43 } 44 45 void LabelFixer::postvisit( FunctionDecl * functionDecl ) { 46 PassVisitor<MultiLevelExitMutator> mlem( resolveJumps(), generator ); 47 // We start in the body so we can stop when we hit another FunctionDecl. 48 maybeMutate( functionDecl->statements, mlem ); 49 } 50 51 // prune to at most one label definition for each statement 52 void LabelFixer::previsit( Statement * stmt ) { 53 std::list< Label > &labels = stmt->get_labels(); 54 55 if ( ! labels.empty() ) { 56 // only remember one label for each statement 57 Label current = setLabelsDef( labels, stmt ); 58 } // if 59 } 60 61 void LabelFixer::previsit( BranchStmt * branchStmt ) { 62 previsit( ( Statement *)branchStmt ); 63 64 // for labeled branches, add an entry to the label table 65 Label target = branchStmt->get_target(); 66 if ( target != "" ) { 67 setLabelsUsg( target, branchStmt ); 68 } 69 } 70 71 void LabelFixer::previsit( LabelAddressExpr * addrExpr ) { 72 Label & target = addrExpr->arg; 73 assert( target != "" ); 74 setLabelsUsg( target, addrExpr ); 75 } 76 77 78 // Sets the definition of the labelTable entry to be the provided statement for every label in 79 // the list parameter. Happens for every kind of statement. 80 Label LabelFixer::setLabelsDef( std::list< Label > & llabel, Statement * definition ) { 81 assert( definition != 0 ); 82 assert( llabel.size() > 0 ); 83 84 for ( std::list< Label >::iterator i = llabel.begin(); i != llabel.end(); i++ ) { 85 Label & l = *i; 86 l.set_statement( definition ); // attach statement to the label to be used later 87 if ( labelTable.find( l ) == labelTable.end() ) { 88 // All labels on this statement need to use the same entry, 89 // so this should only be created once. 90 // undefined and unused until now, add an entry 91 labelTable[ l ] = new Entry( definition ); 92 } else if ( labelTable[ l ]->defined() ) { 93 // defined twice, error 94 SemanticError( l.get_statement()->location, 95 "Duplicate definition of label: " + l.get_name() ); 96 } else { 97 // used previously, but undefined until now -> link with this entry 98 // Question: Is changing objects important? 99 delete labelTable[ l ]; 100 labelTable[ l ] = new Entry( definition ); 101 } // if 102 } // for 103 104 // Produce one of the labels attached to this statement to be temporarily used as the 105 // canonical label. 106 return labelTable[ llabel.front() ]->get_label(); 107 } 108 109 // A label was used, add it to the table if it isn't already there 110 template< typename UsageNode > 111 void LabelFixer::setLabelsUsg( Label orgValue, UsageNode *use ) { 112 assert( use != 0 ); 113 114 // add label with an unknown origin 115 if ( labelTable.find( orgValue ) == labelTable.end() ) { 116 labelTable[ orgValue ] = new Entry( 0 ); 117 } 118 } 119 120 // Builds a table that maps a label to its defining statement. 121 std::map<Label, Statement * > * LabelFixer::resolveJumps() throw ( SemanticErrorException ) { 122 std::map< Label, Statement * > *ret = new std::map< Label, Statement * >(); 123 for ( std::map< Label, Entry * >::iterator i = labelTable.begin(); i != labelTable.end(); ++i ) { 124 if ( ! i->second->defined() ) { 125 SemanticError( i->first.get_statement()->location, "Use of undefined label: " + i->first.get_name() ); 126 } 127 (*ret)[ i->first ] = i->second->get_definition(); 32 128 } 33 129 34 LabelFixer::LabelFixer( LabelGenerator * gen ) : generator ( gen ) { 35 if ( generator == 0 ) 36 generator = LabelGenerator::getGenerator(); 37 } 38 39 void LabelFixer::previsit( FunctionDecl * ) { 40 // need to go into a nested function in a fresh state 41 GuardValue( labelTable ); 42 labelTable.clear(); 43 } 44 45 void LabelFixer::postvisit( FunctionDecl * functionDecl ) { 46 PassVisitor<MultiLevelExitMutator> mlem( resolveJumps(), generator ); 47 // We start in the body so we can stop when we hit another FunctionDecl. 48 maybeMutate( functionDecl->statements, mlem ); 49 } 50 51 // prune to at most one label definition for each statement 52 void LabelFixer::previsit( Statement * stmt ) { 53 std::list< Label > &labels = stmt->get_labels(); 54 55 if ( ! labels.empty() ) { 56 // only remember one label for each statement 57 Label current = setLabelsDef( labels, stmt ); 58 } // if 59 } 60 61 void LabelFixer::previsit( BranchStmt * branchStmt ) { 62 previsit( ( Statement *)branchStmt ); 63 64 // for labeled branches, add an entry to the label table 65 Label target = branchStmt->get_target(); 66 if ( target != "" ) { 67 setLabelsUsg( target, branchStmt ); 68 } 69 } 70 71 void LabelFixer::previsit( LabelAddressExpr * addrExpr ) { 72 Label & target = addrExpr->arg; 73 assert( target != "" ); 74 setLabelsUsg( target, addrExpr ); 75 } 76 77 78 // Sets the definition of the labelTable entry to be the provided statement for every label in 79 // the list parameter. Happens for every kind of statement. 80 Label LabelFixer::setLabelsDef( std::list< Label > & llabel, Statement * definition ) { 81 assert( definition != 0 ); 82 assert( llabel.size() > 0 ); 83 84 for ( std::list< Label >::iterator i = llabel.begin(); i != llabel.end(); i++ ) { 85 Label & l = *i; 86 l.set_statement( definition ); // attach statement to the label to be used later 87 if ( labelTable.find( l ) == labelTable.end() ) { 88 // All labels on this statement need to use the same entry, 89 // so this should only be created once. 90 // undefined and unused until now, add an entry 91 labelTable[ l ] = new Entry( definition ); 92 } else if ( labelTable[ l ]->defined() ) { 93 // defined twice, error 94 SemanticError( l.get_statement()->location, 95 "Duplicate definition of label: " + l.get_name() ); 96 } else { 97 // used previously, but undefined until now -> link with this entry 98 // Question: Is changing objects important? 99 delete labelTable[ l ]; 100 labelTable[ l ] = new Entry( definition ); 101 } // if 102 } // for 103 104 // Produce one of the labels attached to this statement to be temporarily used as the 105 // canonical label. 106 return labelTable[ llabel.front() ]->get_label(); 107 } 108 109 // A label was used, add it to the table if it isn't already there 110 template< typename UsageNode > 111 void LabelFixer::setLabelsUsg( Label orgValue, UsageNode *use ) { 112 assert( use != 0 ); 113 114 // add label with an unknown origin 115 if ( labelTable.find( orgValue ) == labelTable.end() ) { 116 labelTable[ orgValue ] = new Entry( 0 ); 117 } 118 } 119 120 // Builds a table that maps a label to its defining statement. 121 std::map<Label, Statement * > * LabelFixer::resolveJumps() throw ( SemanticErrorException ) { 122 std::map< Label, Statement * > *ret = new std::map< Label, Statement * >(); 123 for ( std::map< Label, Entry * >::iterator i = labelTable.begin(); i != labelTable.end(); ++i ) { 124 if ( ! i->second->defined() ) { 125 SemanticError( i->first.get_statement()->location, "Use of undefined label: " + i->first.get_name() ); 126 } 127 (*ret)[ i->first ] = i->second->get_definition(); 128 } 129 130 return ret; 131 } 130 return ret; 131 } 132 132 } // namespace ControlStruct 133 133 -
src/ControlStruct/LabelFixer.h
r5f3ba11 rb56ad5e 10 10 // Created On : Mon May 18 07:44:20 2015 11 11 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Sat Jul 22 09:17:24 201713 // Update Count : 3 412 // Last Modified On : Mon Jan 31 22:28:04 2022 13 // Update Count : 35 14 14 // 15 15 … … 26 26 27 27 namespace ControlStruct { 28 /// normalizes label definitions and generates multi-level exit labels29 class LabelGenerator;28 // normalizes label definitions and generates multi-level exit labels 29 class LabelGenerator; 30 30 31 class LabelFixer final : public WithGuards {32 public:33 LabelFixer( LabelGenerator *gen = 0 );31 class LabelFixer final : public WithGuards { 32 public: 33 LabelFixer( LabelGenerator *gen = 0 ); 34 34 35 std::map < Label, Statement * > *resolveJumps() throw ( SemanticErrorException );35 std::map < Label, Statement * > *resolveJumps() throw ( SemanticErrorException ); 36 36 37 // Declarations38 void previsit( FunctionDecl *functionDecl );39 void postvisit( FunctionDecl *functionDecl );37 // Declarations 38 void previsit( FunctionDecl *functionDecl ); 39 void postvisit( FunctionDecl *functionDecl ); 40 40 41 // Statements42 void previsit( Statement *stmt );43 void previsit( BranchStmt *branchStmt );41 // Statements 42 void previsit( Statement *stmt ); 43 void previsit( BranchStmt *branchStmt ); 44 44 45 // Expressions46 void previsit( LabelAddressExpr *addrExpr );45 // Expressions 46 void previsit( LabelAddressExpr *addrExpr ); 47 47 48 Label setLabelsDef( std::list< Label > &, Statement *definition ); 49 template< typename UsageNode > 50 void setLabelsUsg( Label, UsageNode *usage = 0 ); 48 Label setLabelsDef( std::list< Label > &, Statement *definition ); 49 template< typename UsageNode > 50 void setLabelsUsg( Label, UsageNode *usage = 0 ); 51 52 private: 53 class Entry { 54 public: 55 Entry( Statement *to ) : definition( to ) {} 56 bool defined() { return ( definition != 0 ); } 57 bool insideLoop(); 58 59 Label get_label() const { return label; } 60 void set_label( Label lab ) { label = lab; } 61 62 Statement *get_definition() const { return definition; } 63 void set_definition( Statement *def ) { definition = def; } 51 64 52 65 private: 53 class Entry { 54 public: 55 Entry( Statement *to ) : definition( to ) {} 56 bool defined() { return ( definition != 0 ); } 57 bool insideLoop(); 66 Label label; 67 Statement *definition; 68 }; 58 69 59 Label get_label() const { return label; } 60 void set_label( Label lab ) { label = lab; } 61 62 Statement *get_definition() const { return definition; } 63 void set_definition( Statement *def ) { definition = def; } 64 65 private: 66 Label label; 67 Statement *definition; 68 }; 69 70 std::map < Label, Entry *> labelTable; 71 LabelGenerator *generator; 72 }; 70 std::map < Label, Entry *> labelTable; 71 LabelGenerator *generator; 72 }; 73 73 } // namespace ControlStruct 74 74 -
src/ControlStruct/LabelGenerator.cc
r5f3ba11 rb56ad5e 9 9 // Author : Rodolfo G. Esteves 10 10 // Created On : Mon May 18 07:44:20 2015 11 // Last Modified By : Andrew Beach12 // Last Modified On : Mon Nov 8 10:18:00 202113 // Update Count : 1711 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Mon Jan 31 22:30:26 2022 13 // Update Count : 28 14 14 // 15 15 … … 17 17 #include <sstream> // for ostringstream 18 18 #include <list> // for list 19 using namespace std; 19 20 20 21 #include "LabelGenerator.h" 21 22 22 #include "AST/Attribute.hpp"23 #include "AST/Label.hpp"24 #include "AST/Stmt.hpp"25 23 #include "SynTree/Attribute.h" // for Attribute 26 24 #include "SynTree/Label.h" // for Label, operator<< … … 28 26 29 27 namespace ControlStruct { 30 31 28 int LabelGenerator::current = 0; 32 29 LabelGenerator * LabelGenerator::labelGenerator = nullptr; 33 30 34 LabelGenerator * LabelGenerator::getGenerator() { 35 if ( LabelGenerator::labelGenerator == 0 ) 36 LabelGenerator::labelGenerator = new LabelGenerator(); 37 return labelGenerator; 38 } 39 40 Label LabelGenerator::newLabel( std::string suffix, Statement * stmt ) { 41 std::ostringstream os; 42 os << "__L" << current++ << "__" << suffix; 43 if ( stmt && ! stmt->get_labels().empty() ) { 44 os << "_" << stmt->get_labels().front() << "__"; 45 } // if 46 std::string ret = os.str(); 47 Label l( ret ); 48 l.get_attributes().push_back( new Attribute("unused") ); 49 return l; 50 } 51 52 ast::Label LabelGenerator::newLabel( 53 const std::string & suffix, const ast::Stmt * stmt ) { 54 assert( stmt ); 55 56 std::ostringstream os; 57 os << "__L" << current++ << "__" << suffix; 58 if ( stmt && !stmt->labels.empty() ) { 59 os << "_" << stmt->labels.front() << "__"; 60 } 61 ast::Label ret_label( stmt->location, os.str() ); 62 ret_label.attributes.push_back( new ast::Attribute( "unused" ) ); 63 return ret_label; 31 LabelGenerator * LabelGenerator::getGenerator() { 32 if ( LabelGenerator::labelGenerator == 0 ) 33 LabelGenerator::labelGenerator = new LabelGenerator(); 34 return labelGenerator; 64 35 } 65 36 37 Label LabelGenerator::newLabel( string suffix, Statement * stmt ) { 38 ostringstream os; 39 os << "__L_OLD" << current++ << "__" << suffix; 40 if ( stmt && ! stmt->get_labels().empty() ) { 41 os << "_" << stmt->get_labels().front() << "__"; 42 } // if 43 string ret = os.str(); 44 Label l( ret ); 45 l.get_attributes().push_back( new Attribute( "unused" ) ); 46 return l; 47 } 66 48 } // namespace ControlStruct 67 49 68 50 // Local Variables: // 69 // tab-width: 4 //70 51 // mode: c++ // 71 // compile-command: "make install" //72 52 // End: // -
src/ControlStruct/LabelGenerator.h
r5f3ba11 rb56ad5e 9 9 // Author : Rodolfo G. Esteves 10 10 // Created On : Mon May 18 07:44:20 2015 11 // Last Modified By : Andrew Beach12 // Last Modified On : Mon Nov 8 10:16:00 202113 // Update Count : 811 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Mon Jan 31 22:30:10 2022 13 // Update Count : 16 14 14 // 15 15 … … 21 21 22 22 class Statement; 23 23 24 namespace ast { 24 class Stmt;25 class Label;25 class Stmt; 26 class Label; 26 27 } 27 28 28 29 namespace ControlStruct { 29 30 30 class LabelGenerator { 31 31 static int current; 32 32 static LabelGenerator *labelGenerator; 33 protected:33 protected: 34 34 LabelGenerator() {} 35 public:35 public: 36 36 static LabelGenerator *getGenerator(); 37 37 static Label newLabel(std::string suffix, Statement * stmt = nullptr); 38 static ast::Label newLabel( const std::string&, const ast::Stmt * );39 static void reset() { current = 0; }40 static void rewind() { current--; }41 38 }; 42 43 39 } // namespace ControlStruct 44 40 -
src/ControlStruct/MLEMutator.cc
r5f3ba11 rb56ad5e 9 9 // Author : Rodolfo G. Esteves 10 10 // Created On : Mon May 18 07:44:20 2015 11 // Last Modified By : Andrew Beach12 // Last Modified On : Wed Jan 22 11:50:00 202013 // Update Count : 22 311 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Wed Feb 2 20:18:57 2022 13 // Update Count : 227 14 14 // 15 15 … … 39 39 namespace { 40 40 bool isLoop( const MultiLevelExitMutator::Entry & e ) { 41 return dynamic_cast< While Stmt * >( e.get_controlStructure() )41 return dynamic_cast< WhileDoStmt * >( e.get_controlStructure() ) 42 42 || dynamic_cast< ForStmt * >( e.get_controlStructure() ); 43 43 } … … 136 136 } 137 137 } 138 assertf( false, "C ould not find label '%s' on statement %s",138 assertf( false, "CFA internal error: could not find label '%s' on statement %s", 139 139 originalTarget.get_name().c_str(), toString( stmt ).c_str() ); 140 140 } … … 295 295 } 296 296 297 void MultiLevelExitMutator::premutate( While Stmt * whileStmt ) {298 return prehandleLoopStmt( while Stmt );297 void MultiLevelExitMutator::premutate( WhileDoStmt * whileDoStmt ) { 298 return prehandleLoopStmt( whileDoStmt ); 299 299 } 300 300 … … 303 303 } 304 304 305 Statement * MultiLevelExitMutator::postmutate( While Stmt * whileStmt ) {306 return posthandleLoopStmt( while Stmt );305 Statement * MultiLevelExitMutator::postmutate( WhileDoStmt * whileDoStmt ) { 306 return posthandleLoopStmt( whileDoStmt ); 307 307 } 308 308 … … 395 395 } 396 396 assert( ! enclosingControlStructures.empty() ); 397 assertf( dynamic_cast<SwitchStmt *>( enclosingControlStructures.back().get_controlStructure() ), "Control structure enclosing a case clause must be a switch, but is: %s", toCString( enclosingControlStructures.back().get_controlStructure() ) ); 397 assertf( dynamic_cast<SwitchStmt *>( enclosingControlStructures.back().get_controlStructure() ), 398 "CFA internal error: control structure enclosing a case clause must be a switch, but is: %s", 399 toCString( enclosingControlStructures.back().get_controlStructure() ) ); 398 400 if ( caseStmt->isDefault() ) { 399 401 if ( enclosingControlStructures.back().isFallDefaultUsed() ) { -
src/ControlStruct/MLEMutator.h
r5f3ba11 rb56ad5e 9 9 // Author : Rodolfo G. Esteves 10 10 // Created On : Mon May 18 07:44:20 2015 11 // Last Modified By : Andrew Beach12 // Last Modified On : Wed Jan 22 11:50:00 202013 // Update Count : 4811 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Tue Feb 1 09:27:24 2022 13 // Update Count : 50 14 14 // 15 15 … … 42 42 void premutate( CompoundStmt *cmpndStmt ); 43 43 Statement * postmutate( BranchStmt *branchStmt ) throw ( SemanticErrorException ); 44 void premutate( While Stmt *whileStmt );45 Statement * postmutate( While Stmt *whileStmt );44 void premutate( WhileDoStmt *whileDoStmt ); 45 Statement * postmutate( WhileDoStmt *whileDoStmt ); 46 46 void premutate( ForStmt *forStmt ); 47 47 Statement * postmutate( ForStmt *forStmt ); … … 67 67 stmt( stmt ), breakExit( breakExit ), contExit( contExit ) {} 68 68 69 explicit Entry( While Stmt *stmt, Label breakExit, Label contExit ) :69 explicit Entry( WhileDoStmt *stmt, Label breakExit, Label contExit ) : 70 70 stmt( stmt ), breakExit( breakExit ), contExit( contExit ) {} 71 71 -
src/ControlStruct/MultiLevelExit.cpp
r5f3ba11 rb56ad5e 9 9 // Author : Andrew Beach 10 10 // Created On : Mon Nov 1 13:48:00 2021 11 // Last Modified By : Andrew Beach12 // Last Modified On : Mon Nov 8 10:56:00 202113 // Update Count : 211 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Wed Feb 2 23:07:54 2022 13 // Update Count : 33 14 14 // 15 15 … … 18 18 #include "AST/Pass.hpp" 19 19 #include "AST/Stmt.hpp" 20 #include " ControlStruct/LabelGenerator.h"20 #include "LabelGeneratorNew.hpp" 21 21 22 22 #include <set> 23 using namespace std; 24 using namespace ast; 23 25 24 26 namespace ControlStruct { 25 26 namespace {27 28 27 class Entry { 29 public:30 const ast::Stmt * stmt;31 private:28 public: 29 const Stmt * stmt; 30 private: 32 31 // Organized like a manual ADT. Avoids creating a bunch of dead data. 33 32 struct Target { 34 ast::Label label;33 Label label; 35 34 bool used = false; 36 Target( const ast::Label & label ) : label( label ) {}35 Target( const Label & label ) : label( label ) {} 37 36 Target() : label( CodeLocation() ) {} 38 37 }; … … 41 40 42 41 enum Kind { 43 ForStmt , WhileStmt, CompoundStmt, IfStmt, CaseStmt, SwitchStmt, TryStmt42 ForStmtK, WhileDoStmtK, CompoundStmtK, IfStmtK, CaseStmtK, SwitchStmtK, TryStmtK 44 43 } kind; 45 44 46 45 bool fallDefaultValid = true; 47 46 48 static ast::Label & useTarget( Target & target ) {47 static Label & useTarget( Target & target ) { 49 48 target.used = true; 50 49 return target.label; 51 50 } 52 53 public: 54 Entry( const ast::ForStmt * stmt, ast::Label breakExit, ast::Label contExit ) : 55 stmt( stmt ), firstTarget( breakExit ), secondTarget( contExit ), kind( ForStmt ) {} 56 Entry( const ast::WhileStmt * stmt, ast::Label breakExit, ast::Label contExit ) : 57 stmt( stmt ), firstTarget( breakExit ), secondTarget( contExit ), kind( WhileStmt ) {} 58 Entry( const ast::CompoundStmt *stmt, ast::Label breakExit ) : 59 stmt( stmt ), firstTarget( breakExit ), secondTarget(), kind( CompoundStmt ) {} 60 Entry( const ast::IfStmt *stmt, ast::Label breakExit ) : 61 stmt( stmt ), firstTarget( breakExit ), secondTarget(), kind( IfStmt ) {} 62 Entry( const ast::CaseStmt *stmt, ast::Label fallExit ) : 63 stmt( stmt ), firstTarget( fallExit ), secondTarget(), kind( CaseStmt ) {} 64 Entry( const ast::SwitchStmt *stmt, ast::Label breakExit, ast::Label fallDefaultExit ) : 65 stmt( stmt ), firstTarget( breakExit ), secondTarget( fallDefaultExit ), kind( SwitchStmt ) {} 66 Entry( const ast::TryStmt *stmt, ast::Label breakExit ) : 67 stmt( stmt ), firstTarget( breakExit ), secondTarget(), kind( TryStmt ) {} 68 69 bool isContTarget() const { return kind <= WhileStmt; } 70 bool isBreakTarget() const { return CaseStmt != kind; } 71 bool isFallTarget() const { return CaseStmt == kind; } 72 bool isFallDefaultTarget() const { return SwitchStmt == kind; } 73 74 ast::Label useContExit() { assert( kind <= WhileStmt ); return useTarget(secondTarget); } 75 ast::Label useBreakExit() { assert( CaseStmt != kind ); return useTarget(firstTarget); } 76 ast::Label useFallExit() { assert( CaseStmt == kind ); return useTarget(firstTarget); } 77 ast::Label useFallDefaultExit() { assert( SwitchStmt == kind ); return useTarget(secondTarget); } 78 79 bool isContUsed() const { assert( kind <= WhileStmt ); return secondTarget.used; } 80 bool isBreakUsed() const { assert( CaseStmt != kind ); return firstTarget.used; } 81 bool isFallUsed() const { assert( CaseStmt == kind ); return firstTarget.used; } 82 bool isFallDefaultUsed() const { assert( SwitchStmt == kind ); return secondTarget.used; } 51 public: 52 Entry( const ForStmt * stmt, Label breakExit, Label contExit ) : 53 stmt( stmt ), firstTarget( breakExit ), secondTarget( contExit ), kind( ForStmtK ) {} 54 Entry( const WhileDoStmt * stmt, Label breakExit, Label contExit ) : 55 stmt( stmt ), firstTarget( breakExit ), secondTarget( contExit ), kind( WhileDoStmtK ) {} 56 Entry( const CompoundStmt *stmt, Label breakExit ) : 57 stmt( stmt ), firstTarget( breakExit ), secondTarget(), kind( CompoundStmtK ) {} 58 Entry( const IfStmt *stmt, Label breakExit ) : 59 stmt( stmt ), firstTarget( breakExit ), secondTarget(), kind( IfStmtK ) {} 60 Entry( const CaseStmt *stmt, Label fallExit ) : 61 stmt( stmt ), firstTarget( fallExit ), secondTarget(), kind( CaseStmtK ) {} 62 Entry( const SwitchStmt *stmt, Label breakExit, Label fallDefaultExit ) : 63 stmt( stmt ), firstTarget( breakExit ), secondTarget( fallDefaultExit ), kind( SwitchStmtK ) {} 64 Entry( const TryStmt *stmt, Label breakExit ) : 65 stmt( stmt ), firstTarget( breakExit ), secondTarget(), kind( TryStmtK ) {} 66 67 bool isContTarget() const { return kind <= WhileDoStmtK; } 68 bool isBreakTarget() const { return kind != CaseStmtK; } 69 bool isFallTarget() const { return kind == CaseStmtK; } 70 bool isFallDefaultTarget() const { return kind == SwitchStmtK; } 71 72 // These routines set a target as being "used" by a BranchStmt 73 Label useContExit() { assert( kind <= WhileDoStmtK ); return useTarget(secondTarget); } 74 Label useBreakExit() { assert( kind != CaseStmtK ); return useTarget(firstTarget); } 75 Label useFallExit() { assert( kind == CaseStmtK ); return useTarget(firstTarget); } 76 Label useFallDefaultExit() { assert( kind == SwitchStmtK ); return useTarget(secondTarget); } 77 78 // These routines check if a specific label for a statement is used by a BranchStmt 79 bool isContUsed() const { assert( kind <= WhileDoStmtK ); return secondTarget.used; } 80 bool isBreakUsed() const { assert( kind != CaseStmtK ); return firstTarget.used; } 81 bool isFallUsed() const { assert( kind == CaseStmtK ); return firstTarget.used; } 82 bool isFallDefaultUsed() const { assert( kind == SwitchStmtK ); return secondTarget.used; } 83 83 void seenDefault() { fallDefaultValid = false; } 84 84 bool isFallDefaultValid() const { return fallDefaultValid; } 85 85 }; 86 86 87 // Helper predicates used in std::find_if calls (it doesn't take methods):87 // Helper predicates used in find_if calls (it doesn't take methods): 88 88 bool isBreakTarget( const Entry & entry ) { 89 89 return entry.isBreakTarget(); … … 103 103 104 104 struct MultiLevelExitCore final : 105 public ast::WithVisitorRef<MultiLevelExitCore>,106 public ast::WithShortCircuiting, public ast::WithGuards {105 public WithVisitorRef<MultiLevelExitCore>, 106 public WithShortCircuiting, public WithGuards { 107 107 MultiLevelExitCore( const LabelToStmt & lt ); 108 108 109 void previsit( const ast::FunctionDecl * );110 111 const ast::CompoundStmt * previsit( const ast::CompoundStmt * );112 const ast::BranchStmt * postvisit( const ast::BranchStmt * );113 void previsit( const ast::WhileStmt * );114 const ast::WhileStmt * postvisit( const ast::WhileStmt * );115 void previsit( const ast::ForStmt * );116 const ast::ForStmt * postvisit( const ast::ForStmt * );117 const ast::CaseStmt * previsit( const ast::CaseStmt * );118 void previsit( const ast::IfStmt * );119 const ast::IfStmt * postvisit( const ast::IfStmt * );120 void previsit( const ast::SwitchStmt * );121 const ast::SwitchStmt * postvisit( const ast::SwitchStmt * );122 void previsit( const ast::ReturnStmt * );123 void previsit( const ast::TryStmt * );124 void postvisit( const ast::TryStmt * );125 void previsit( const ast::FinallyStmt * );126 127 const ast::Stmt * mutateLoop( const ast::Stmt * body, Entry& );109 void previsit( const FunctionDecl * ); 110 111 const CompoundStmt * previsit( const CompoundStmt * ); 112 const BranchStmt * postvisit( const BranchStmt * ); 113 void previsit( const WhileDoStmt * ); 114 const WhileDoStmt * postvisit( const WhileDoStmt * ); 115 void previsit( const ForStmt * ); 116 const ForStmt * postvisit( const ForStmt * ); 117 const CaseStmt * previsit( const CaseStmt * ); 118 void previsit( const IfStmt * ); 119 const IfStmt * postvisit( const IfStmt * ); 120 void previsit( const SwitchStmt * ); 121 const SwitchStmt * postvisit( const SwitchStmt * ); 122 void previsit( const ReturnStmt * ); 123 void previsit( const TryStmt * ); 124 void postvisit( const TryStmt * ); 125 void previsit( const FinallyStmt * ); 126 127 const Stmt * mutateLoop( const Stmt * body, Entry& ); 128 128 129 129 const LabelToStmt & target_table; 130 s td::set<ast::Label> fallthrough_labels;131 std::vector<Entry> enclosing_control_structures;132 ast::Label break_label;130 set<Label> fallthrough_labels; 131 vector<Entry> enclosing_control_structures; 132 Label break_label; 133 133 bool inFinally; 134 134 … … 138 138 const LoopNode * posthandleLoopStmt( const LoopNode * loopStmt ); 139 139 140 std::list<ast::ptr<ast::Stmt>> fixBlock(141 const std::list<ast::ptr<ast::Stmt>> & kids, bool caseClause );140 list<ptr<Stmt>> fixBlock( 141 const list<ptr<Stmt>> & kids, bool caseClause ); 142 142 143 143 template<typename UnaryPredicate> 144 144 auto findEnclosingControlStructure( UnaryPredicate pred ) { 145 return std::find_if( enclosing_control_structures.rbegin(),146 enclosing_control_structures.rend(), pred );145 return find_if( enclosing_control_structures.rbegin(), 146 enclosing_control_structures.rend(), pred ); 147 147 } 148 148 }; 149 149 150 ast::NullStmt * labelledNullStmt(151 const CodeLocation & cl, const ast::Label & label ) {152 return new ast::NullStmt( cl, std::vector<ast::Label>{ label } );150 NullStmt * labelledNullStmt( 151 const CodeLocation & cl, const Label & label ) { 152 return new NullStmt( cl, vector<Label>{ label } ); 153 153 } 154 154 … … 158 158 {} 159 159 160 void MultiLevelExitCore::previsit( const ast::FunctionDecl * ) {160 void MultiLevelExitCore::previsit( const FunctionDecl * ) { 161 161 visit_children = false; 162 162 } 163 163 164 const ast::CompoundStmt * MultiLevelExitCore::previsit(165 const ast::CompoundStmt * stmt ) {164 const CompoundStmt * MultiLevelExitCore::previsit( 165 const CompoundStmt * stmt ) { 166 166 visit_children = false; 167 bool isLabeled = !stmt->labels.empty(); 167 168 // if the stmt is labelled then generate a label to check in postvisit if the label is used 169 bool isLabeled = ! stmt->labels.empty(); 168 170 if ( isLabeled ) { 169 ast::Label breakLabel = LabelGenerator::newLabel( "blockBreak", stmt );171 Label breakLabel = newLabel( "blockBreak", stmt ); 170 172 enclosing_control_structures.emplace_back( stmt, breakLabel ); 171 173 GuardAction( [this]() { enclosing_control_structures.pop_back(); } ); 172 174 } 173 175 174 auto mutStmt = ast::mutate( stmt );176 auto mutStmt = mutate( stmt ); 175 177 // A child statement may set the break label. 176 mutStmt->kids = std::move( fixBlock( stmt->kids, false ) );178 mutStmt->kids = move( fixBlock( stmt->kids, false ) ); 177 179 178 180 if ( isLabeled ) { 179 assert( ! enclosing_control_structures.empty() );181 assert( ! enclosing_control_structures.empty() ); 180 182 Entry & entry = enclosing_control_structures.back(); 181 if ( ! entry.useBreakExit().empty() ) {183 if ( ! entry.useBreakExit().empty() ) { 182 184 break_label = entry.useBreakExit(); 183 185 } … … 187 189 188 190 size_t getUnusedIndex( 189 const ast::Stmt * stmt, const ast::Label & originalTarget ) {191 const Stmt * stmt, const Label & originalTarget ) { 190 192 const size_t size = stmt->labels.size(); 191 193 192 // If the label is empty, we can skip adding the unused attribute:193 if ( originalTarget.empty() ) return size;194 // If the label is empty, do not add unused attribute. 195 if ( originalTarget.empty() ) return size; 194 196 195 197 // Search for a label that matches the originalTarget. 196 198 for ( size_t i = 0 ; i < size ; ++i ) { 197 const ast::Label & label = stmt->labels[i];199 const Label & label = stmt->labels[i]; 198 200 if ( label == originalTarget ) { 199 for ( const ast::Attribute * attr : label.attributes ) {201 for ( const Attribute * attr : label.attributes ) { 200 202 if ( attr->name == "unused" ) return size; 201 203 } … … 203 205 } 204 206 } 205 assertf( false, "C ould not find label '%s' on statement %s",206 originalTarget.name.c_str(), toString( stmt ).c_str() );207 } 208 209 const ast::Stmt * addUnused(210 const ast::Stmt * stmt, const ast::Label & originalTarget ) {207 assertf( false, "CFA internal error: could not find label '%s' on statement %s", 208 originalTarget.name.c_str(), toString( stmt ).c_str() ); 209 } 210 211 const Stmt * addUnused( 212 const Stmt * stmt, const Label & originalTarget ) { 211 213 size_t i = getUnusedIndex( stmt, originalTarget ); 212 214 if ( i == stmt->labels.size() ) { 213 215 return stmt; 214 216 } 215 ast::Stmt * mutStmt = ast::mutate( stmt );216 mutStmt->labels[i].attributes.push_back( new ast::Attribute( "unused" ) );217 Stmt * mutStmt = mutate( stmt ); 218 mutStmt->labels[i].attributes.push_back( new Attribute( "unused" ) ); 217 219 return mutStmt; 218 220 } 219 221 220 const ast::BranchStmt * MultiLevelExitCore::postvisit( const ast::BranchStmt * stmt ) { 221 std::vector<Entry>::reverse_iterator targetEntry = 222 // This routine updates targets on enclosing control structures to indicate which 223 // label is used by the BranchStmt that is passed 224 const BranchStmt * MultiLevelExitCore::postvisit( const BranchStmt * stmt ) { 225 vector<Entry>::reverse_iterator targetEntry = 222 226 enclosing_control_structures.rend(); 227 228 // Labels on different stmts require different approaches to access 223 229 switch ( stmt->kind ) { 224 case ast::BranchStmt::Goto:230 case BranchStmt::Goto: 225 231 return stmt; 226 case ast::BranchStmt::Continue: 227 case ast::BranchStmt::Break: { 228 bool isContinue = stmt->kind == ast::BranchStmt::Continue; 229 // Handle unlabeled break and continue. 230 if ( stmt->target.empty() ) { 231 if ( isContinue ) { 232 targetEntry = findEnclosingControlStructure( isContinueTarget ); 233 } else { 234 if ( enclosing_control_structures.empty() ) { 235 SemanticError( stmt->location, 236 "'break' outside a loop, 'switch', or labelled block" ); 237 } 238 targetEntry = findEnclosingControlStructure( isBreakTarget ); 239 } 240 // Handle labeled break and continue. 241 } else { 242 // Lookup label in table to find attached control structure. 243 targetEntry = findEnclosingControlStructure( 244 [ targetStmt = target_table.at(stmt->target) ](auto entry){ 245 return entry.stmt == targetStmt; 246 } ); 247 } 248 // Ensure that selected target is valid. 249 if ( targetEntry == enclosing_control_structures.rend() || ( isContinue && !isContinueTarget( *targetEntry ) ) ) { 250 SemanticError( 251 stmt->location, 252 toString( (isContinue ? "'continue'" : "'break'"), 253 " target must be an enclosing ", 254 (isContinue ? "loop: " : "control structure: "), 255 stmt->originalTarget ) ); 256 } 257 break; 258 } 259 case ast::BranchStmt::FallThrough: { 260 targetEntry = findEnclosingControlStructure( isFallthroughTarget ); 261 // Check that target is valid. 262 if ( targetEntry == enclosing_control_structures.rend() ) { 263 SemanticError( stmt->location, "'fallthrough' must be enclosed in a 'switch' or 'choose'" ); 264 } 265 if ( !stmt->target.empty() ) { 266 // Labelled fallthrough: target must be a valid fallthough label. 267 if ( !fallthrough_labels.count( stmt->target ) ) { 268 SemanticError( stmt->location, toString( "'fallthrough' target must be a later case statement: ", stmt->originalTarget ) ); 269 } 270 return new ast::BranchStmt( 271 stmt->location, ast::BranchStmt::Goto, stmt->originalTarget ); 272 } 273 break; 274 } 275 case ast::BranchStmt::FallThroughDefault: { 276 targetEntry = findEnclosingControlStructure( isFallthroughDefaultTarget ); 277 278 // Check that this is in a switch or choose statement. 279 if ( targetEntry == enclosing_control_structures.rend() ) { 280 SemanticError( stmt->location, "'fallthrough' must be enclosed in a 'switch' or 'choose'" ); 281 } 282 283 // Check that the switch or choose has a default clause. 284 auto switchStmt = strict_dynamic_cast< const ast::SwitchStmt * >( 285 targetEntry->stmt ); 286 bool foundDefault = false; 287 for ( auto subStmt : switchStmt->stmts ) { 288 const ast::CaseStmt * caseStmt = subStmt.strict_as<ast::CaseStmt>(); 289 if ( caseStmt->isDefault() ) { 290 foundDefault = true; 291 break; 292 } 293 } 294 if ( !foundDefault ) { 295 SemanticError( stmt->location, "'fallthrough default' must be enclosed in a 'switch' or 'choose' control structure with a 'default' clause" ); 296 } 297 break; 298 } 299 default: 232 case BranchStmt::Continue: 233 case BranchStmt::Break: { 234 bool isContinue = stmt->kind == BranchStmt::Continue; 235 // Handle unlabeled break and continue. 236 if ( stmt->target.empty() ) { 237 if ( isContinue ) { 238 targetEntry = findEnclosingControlStructure( isContinueTarget ); 239 } else { 240 if ( enclosing_control_structures.empty() ) { 241 SemanticError( stmt->location, 242 "'break' outside a loop, 'switch', or labelled block" ); 243 } 244 targetEntry = findEnclosingControlStructure( isBreakTarget ); 245 } 246 // Handle labeled break and continue. 247 } else { 248 // Lookup label in table to find attached control structure. 249 targetEntry = findEnclosingControlStructure( 250 [ targetStmt = target_table.at(stmt->target) ](auto entry){ 251 return entry.stmt == targetStmt; 252 } ); 253 } 254 // Ensure that selected target is valid. 255 if ( targetEntry == enclosing_control_structures.rend() || ( isContinue && ! isContinueTarget( *targetEntry ) ) ) { 256 SemanticError( stmt->location, toString( (isContinue ? "'continue'" : "'break'"), 257 " target must be an enclosing ", (isContinue ? "loop: " : "control structure: "), 258 stmt->originalTarget ) ); 259 } 260 break; 261 } 262 // handle fallthrough in case/switch stmts 263 case BranchStmt::FallThrough: { 264 targetEntry = findEnclosingControlStructure( isFallthroughTarget ); 265 // Check that target is valid. 266 if ( targetEntry == enclosing_control_structures.rend() ) { 267 SemanticError( stmt->location, "'fallthrough' must be enclosed in a 'switch' or 'choose'" ); 268 } 269 if ( ! stmt->target.empty() ) { 270 // Labelled fallthrough: target must be a valid fallthough label. 271 if ( ! fallthrough_labels.count( stmt->target ) ) { 272 SemanticError( stmt->location, toString( "'fallthrough' target must be a later case statement: ", 273 stmt->originalTarget ) ); 274 } 275 return new BranchStmt( stmt->location, BranchStmt::Goto, stmt->originalTarget ); 276 } 277 break; 278 } 279 case BranchStmt::FallThroughDefault: { 280 targetEntry = findEnclosingControlStructure( isFallthroughDefaultTarget ); 281 282 // Check if in switch or choose statement. 283 if ( targetEntry == enclosing_control_structures.rend() ) { 284 SemanticError( stmt->location, "'fallthrough' must be enclosed in a 'switch' or 'choose'" ); 285 } 286 287 // Check if switch or choose has default clause. 288 auto switchStmt = strict_dynamic_cast< const SwitchStmt * >( targetEntry->stmt ); 289 bool foundDefault = false; 290 for ( auto subStmt : switchStmt->stmts ) { 291 const CaseStmt * caseStmt = subStmt.strict_as<CaseStmt>(); 292 if ( caseStmt->isDefault() ) { 293 foundDefault = true; 294 break; 295 } 296 } 297 if ( ! foundDefault ) { 298 SemanticError( stmt->location, "'fallthrough default' must be enclosed in a 'switch' or 'choose'" 299 "control structure with a 'default' clause" ); 300 } 301 break; 302 } 303 default: 300 304 assert( false ); 301 305 } 302 306 303 // Branch error checks: get the appropriate label name: 304 // (This label will always be replaced.) 305 ast::Label exitLabel( CodeLocation(), "" ); 307 // Branch error checks: get the appropriate label name, which is always replaced. 308 Label exitLabel( CodeLocation(), "" ); 306 309 switch ( stmt->kind ) { 307 case ast::BranchStmt::Break:308 assert( ! targetEntry->useBreakExit().empty() );310 case BranchStmt::Break: 311 assert( ! targetEntry->useBreakExit().empty() ); 309 312 exitLabel = targetEntry->useBreakExit(); 310 313 break; 311 case ast::BranchStmt::Continue:312 assert( ! targetEntry->useContExit().empty() );314 case BranchStmt::Continue: 315 assert( ! targetEntry->useContExit().empty() ); 313 316 exitLabel = targetEntry->useContExit(); 314 317 break; 315 case ast::BranchStmt::FallThrough:316 assert( ! targetEntry->useFallExit().empty() );318 case BranchStmt::FallThrough: 319 assert( ! targetEntry->useFallExit().empty() ); 317 320 exitLabel = targetEntry->useFallExit(); 318 321 break; 319 case ast::BranchStmt::FallThroughDefault:320 assert( ! targetEntry->useFallDefaultExit().empty() );322 case BranchStmt::FallThroughDefault: 323 assert( ! targetEntry->useFallDefaultExit().empty() ); 321 324 exitLabel = targetEntry->useFallDefaultExit(); 322 325 // Check that fallthrough default comes before the default clause. 323 if ( !targetEntry->isFallDefaultValid() ) { 324 SemanticError( stmt->location, 325 "'fallthrough default' must precede the 'default' clause" ); 326 if ( ! targetEntry->isFallDefaultValid() ) { 327 SemanticError( stmt->location, "'fallthrough default' must precede the 'default' clause" ); 326 328 } 327 329 break; 328 default:330 default: 329 331 assert(0); 330 332 } … … 333 335 targetEntry->stmt = addUnused( targetEntry->stmt, stmt->originalTarget ); 334 336 335 // Replace this with agoto to make later passes more uniform.336 return new ast::BranchStmt( stmt->location, ast::BranchStmt::Goto, exitLabel );337 } 338 339 void MultiLevelExitCore::previsit( const ast::WhileStmt * stmt ) {337 // Replace with goto to make later passes more uniform. 338 return new BranchStmt( stmt->location, BranchStmt::Goto, exitLabel ); 339 } 340 341 void MultiLevelExitCore::previsit( const WhileDoStmt * stmt ) { 340 342 return prehandleLoopStmt( stmt ); 341 343 } 342 344 343 const ast::WhileStmt * MultiLevelExitCore::postvisit( const ast::WhileStmt * stmt ) {345 const WhileDoStmt * MultiLevelExitCore::postvisit( const WhileDoStmt * stmt ) { 344 346 return posthandleLoopStmt( stmt ); 345 347 } 346 348 347 void MultiLevelExitCore::previsit( const ast::ForStmt * stmt ) {349 void MultiLevelExitCore::previsit( const ForStmt * stmt ) { 348 350 return prehandleLoopStmt( stmt ); 349 351 } 350 352 351 const ast::ForStmt * MultiLevelExitCore::postvisit( const ast::ForStmt * stmt ) {353 const ForStmt * MultiLevelExitCore::postvisit( const ForStmt * stmt ) { 352 354 return posthandleLoopStmt( stmt ); 353 355 } … … 355 357 // Mimic what the built-in push_front would do anyways. It is O(n). 356 358 void push_front( 357 std::vector<ast::ptr<ast::Stmt>> & vec, const ast::Stmt * element ) {359 vector<ptr<Stmt>> & vec, const Stmt * element ) { 358 360 vec.emplace_back( nullptr ); 359 361 for ( size_t i = vec.size() - 1 ; 0 < i ; --i ) { 360 vec[ i ] = std::move( vec[ i - 1 ] );362 vec[ i ] = move( vec[ i - 1 ] ); 361 363 } 362 364 vec[ 0 ] = element; 363 365 } 364 366 365 const ast::CaseStmt * MultiLevelExitCore::previsit( const ast::CaseStmt * stmt ) {367 const CaseStmt * MultiLevelExitCore::previsit( const CaseStmt * stmt ) { 366 368 visit_children = false; 367 369 368 // If it is the default, mark the default asseen.370 // If default, mark seen. 369 371 if ( stmt->isDefault() ) { 370 assert( ! enclosing_control_structures.empty() );372 assert( ! enclosing_control_structures.empty() ); 371 373 enclosing_control_structures.back().seenDefault(); 372 374 } 373 375 374 376 // The cond may not exist, but if it does update it now. 375 visitor->maybe_accept( stmt, & ast::CaseStmt::cond );377 visitor->maybe_accept( stmt, &CaseStmt::cond ); 376 378 377 379 // Just save the mutated node for simplicity. 378 ast::CaseStmt * mutStmt = ast::mutate( stmt );379 380 ast::Label fallLabel = LabelGenerator::newLabel( "fallThrough", stmt );381 if ( ! mutStmt->stmts.empty() ) {380 CaseStmt * mutStmt = mutate( stmt ); 381 382 Label fallLabel = newLabel( "fallThrough", stmt ); 383 if ( ! mutStmt->stmts.empty() ) { 382 384 // Ensure that the stack isn't corrupted by exceptions in fixBlock. 383 385 auto guard = makeFuncGuard( 384 386 [&](){ enclosing_control_structures.emplace_back( mutStmt, fallLabel ); }, 385 387 [this](){ enclosing_control_structures.pop_back(); } 386 );388 ); 387 389 388 390 // These should already be in a block. 389 auto block = ast::mutate( mutStmt->stmts.front().strict_as<ast::CompoundStmt>() );391 auto block = mutate( mutStmt->stmts.front().strict_as<CompoundStmt>() ); 390 392 block->kids = fixBlock( block->kids, true ); 391 393 392 394 // Add fallthrough label if necessary. 393 assert( ! enclosing_control_structures.empty() );395 assert( ! enclosing_control_structures.empty() ); 394 396 Entry & entry = enclosing_control_structures.back(); 395 397 if ( entry.isFallUsed() ) { 396 mutStmt->stmts.push_back( 397 labelledNullStmt( mutStmt->location, entry.useFallExit() ) ); 398 } 399 } 400 assert( !enclosing_control_structures.empty() ); 398 mutStmt->stmts.push_back( labelledNullStmt( mutStmt->location, entry.useFallExit() ) ); 399 } 400 } 401 assert( ! enclosing_control_structures.empty() ); 401 402 Entry & entry = enclosing_control_structures.back(); 402 assertf( dynamic_cast< const ast::SwitchStmt * >( entry.stmt ),403 "Control structure enclosing a case clause must be a switch, but is: %s",404 toString( entry.stmt ).c_str() );403 assertf( dynamic_cast< const SwitchStmt * >( entry.stmt ), 404 "CFA internal error: control structure enclosing a case clause must be a switch, but is: %s", 405 toString( entry.stmt ).c_str() ); 405 406 if ( mutStmt->isDefault() ) { 406 407 if ( entry.isFallDefaultUsed() ) { 407 408 // Add fallthrough default label if necessary. 408 push_front( mutStmt->stmts, labelledNullStmt( 409 stmt->location, entry.useFallDefaultExit() 410 ) ); 409 push_front( mutStmt->stmts, labelledNullStmt( stmt->location, entry.useFallDefaultExit() ) ); 411 410 } 412 411 } … … 414 413 } 415 414 416 void MultiLevelExitCore::previsit( const ast::IfStmt * stmt ) {417 bool labeledBlock = ! stmt->labels.empty();415 void MultiLevelExitCore::previsit( const IfStmt * stmt ) { 416 bool labeledBlock = ! stmt->labels.empty(); 418 417 if ( labeledBlock ) { 419 ast::Label breakLabel = LabelGenerator::newLabel( "blockBreak", stmt );418 Label breakLabel = newLabel( "blockBreak", stmt ); 420 419 enclosing_control_structures.emplace_back( stmt, breakLabel ); 421 420 GuardAction( [this](){ enclosing_control_structures.pop_back(); } ); … … 423 422 } 424 423 425 const ast::IfStmt * MultiLevelExitCore::postvisit( const ast::IfStmt * stmt ) {426 bool labeledBlock = ! stmt->labels.empty();424 const IfStmt * MultiLevelExitCore::postvisit( const IfStmt * stmt ) { 425 bool labeledBlock = ! stmt->labels.empty(); 427 426 if ( labeledBlock ) { 428 427 auto this_label = enclosing_control_structures.back().useBreakExit(); 429 if ( ! this_label.empty() ) {428 if ( ! this_label.empty() ) { 430 429 break_label = this_label; 431 430 } … … 434 433 } 435 434 436 bool isDefaultCase( const ast::ptr<ast::Stmt> & stmt ) {437 const ast::CaseStmt * caseStmt = stmt.strict_as<ast::CaseStmt>();435 bool isDefaultCase( const ptr<Stmt> & stmt ) { 436 const CaseStmt * caseStmt = stmt.strict_as<CaseStmt>(); 438 437 return caseStmt->isDefault(); 439 438 } 440 439 441 void MultiLevelExitCore::previsit( const ast::SwitchStmt * stmt ) { 442 ast::Label label = LabelGenerator::newLabel( "switchBreak", stmt ); 443 auto it = std::find_if( stmt->stmts.rbegin(), stmt->stmts.rend(), isDefaultCase ); 444 445 const ast::CaseStmt * defaultCase = it != stmt->stmts.rend() 446 ? (it)->strict_as<ast::CaseStmt>() : nullptr; 447 ast::Label defaultLabel = defaultCase 448 ? LabelGenerator::newLabel( "fallThroughDefault", defaultCase ) 449 : ast::Label( stmt->location, "" ); 440 void MultiLevelExitCore::previsit( const SwitchStmt * stmt ) { 441 Label label = newLabel( "switchBreak", stmt ); 442 auto it = find_if( stmt->stmts.rbegin(), stmt->stmts.rend(), isDefaultCase ); 443 444 const CaseStmt * defaultCase = it != stmt->stmts.rend() ? (it)->strict_as<CaseStmt>() : nullptr; 445 Label defaultLabel = defaultCase ? newLabel( "fallThroughDefault", defaultCase ) : Label( stmt->location, "" ); 450 446 enclosing_control_structures.emplace_back( stmt, label, defaultLabel ); 451 447 GuardAction( [this]() { enclosing_control_structures.pop_back(); } ); 452 448 453 // Collect valid labels for fallthrough. It starts with all labels at 454 // t his level, then removed as we see them in traversal.455 for ( const ast::Stmt * stmt : stmt->stmts ) {456 auto * caseStmt = strict_dynamic_cast< const ast::CaseStmt * >( stmt );449 // Collect valid labels for fallthrough. It starts with all labels at this level, then remove as each is seen during 450 // traversal. 451 for ( const Stmt * stmt : stmt->stmts ) { 452 auto * caseStmt = strict_dynamic_cast< const CaseStmt * >( stmt ); 457 453 if ( caseStmt->stmts.empty() ) continue; 458 auto block = caseStmt->stmts.front().strict_as< ast::CompoundStmt>();459 for ( const ast::Stmt * stmt : block->kids ) {460 for ( const ast::Label & l : stmt->labels ) {454 auto block = caseStmt->stmts.front().strict_as<CompoundStmt>(); 455 for ( const Stmt * stmt : block->kids ) { 456 for ( const Label & l : stmt->labels ) { 461 457 fallthrough_labels.insert( l ); 462 458 } … … 465 461 } 466 462 467 const ast::SwitchStmt * MultiLevelExitCore::postvisit( const ast::SwitchStmt * stmt ) {468 assert( ! enclosing_control_structures.empty() );463 const SwitchStmt * MultiLevelExitCore::postvisit( const SwitchStmt * stmt ) { 464 assert( ! enclosing_control_structures.empty() ); 469 465 Entry & entry = enclosing_control_structures.back(); 470 466 assert( entry.stmt == stmt ); 471 467 472 // Only run if we needto generate the break label.468 // Only run to generate the break label. 473 469 if ( entry.isBreakUsed() ) { 474 // To keep the switch statements uniform (all direct children of a 475 // SwitchStmt should be CastStmts), append the exit label and break 476 // to the last case, create a default case is there are no cases. 477 ast::SwitchStmt * mutStmt = ast::mutate( stmt ); 470 // To keep the switch statements uniform (all direct children of a SwitchStmt should be CastStmts), append the 471 // exit label and break to the last case, create a default case if no cases. 472 SwitchStmt * mutStmt = mutate( stmt ); 478 473 if ( mutStmt->stmts.empty() ) { 479 mutStmt->stmts.push_back( new ast::CaseStmt( 480 mutStmt->location, nullptr, {} )); 481 } 482 483 auto caseStmt = mutStmt->stmts.back().strict_as<ast::CaseStmt>(); 484 auto mutCase = ast::mutate( caseStmt ); 474 mutStmt->stmts.push_back( new CaseStmt( mutStmt->location, nullptr, {} ) ); 475 } 476 477 auto caseStmt = mutStmt->stmts.back().strict_as<CaseStmt>(); 478 auto mutCase = mutate( caseStmt ); 485 479 mutStmt->stmts.back() = mutCase; 486 480 487 ast::Label label( mutCase->location, "breakLabel" );488 auto branch = new ast::BranchStmt( mutCase->location, ast::BranchStmt::Break, label );481 Label label( mutCase->location, "breakLabel" ); 482 auto branch = new BranchStmt( mutCase->location, BranchStmt::Break, label ); 489 483 branch->labels.push_back( entry.useBreakExit() ); 490 484 mutCase->stmts.push_back( branch ); … … 495 489 } 496 490 497 void MultiLevelExitCore::previsit( const ast::ReturnStmt * stmt ) {491 void MultiLevelExitCore::previsit( const ReturnStmt * stmt ) { 498 492 if ( inFinally ) { 499 493 SemanticError( stmt->location, "'return' may not appear in a finally clause" ); … … 501 495 } 502 496 503 void MultiLevelExitCore::previsit( const ast::TryStmt * stmt ) {504 bool isLabeled = ! stmt->labels.empty();497 void MultiLevelExitCore::previsit( const TryStmt * stmt ) { 498 bool isLabeled = ! stmt->labels.empty(); 505 499 if ( isLabeled ) { 506 ast::Label breakLabel = LabelGenerator::newLabel( "blockBreak", stmt );500 Label breakLabel = newLabel( "blockBreak", stmt ); 507 501 enclosing_control_structures.emplace_back( stmt, breakLabel ); 508 502 GuardAction([this](){ enclosing_control_structures.pop_back(); } ); … … 510 504 } 511 505 512 void MultiLevelExitCore::postvisit( const ast::TryStmt * stmt ) {513 bool isLabeled = ! stmt->labels.empty();506 void MultiLevelExitCore::postvisit( const TryStmt * stmt ) { 507 bool isLabeled = ! stmt->labels.empty(); 514 508 if ( isLabeled ) { 515 509 auto this_label = enclosing_control_structures.back().useBreakExit(); 516 if ( ! this_label.empty() ) {510 if ( ! this_label.empty() ) { 517 511 break_label = this_label; 518 512 } … … 520 514 } 521 515 522 void MultiLevelExitCore::previsit( const ast::FinallyStmt * ) { 523 GuardAction([this, old = std::move(enclosing_control_structures)](){ 524 enclosing_control_structures = std::move(old); 525 }); 526 enclosing_control_structures = std::vector<Entry>(); 516 void MultiLevelExitCore::previsit( const FinallyStmt * ) { 517 GuardAction([this, old = move( enclosing_control_structures)](){ enclosing_control_structures = move(old); }); 518 enclosing_control_structures = vector<Entry>(); 527 519 GuardValue( inFinally ) = true; 528 520 } 529 521 530 const ast::Stmt * MultiLevelExitCore::mutateLoop(531 const ast::Stmt * body, Entry & entry ) {522 const Stmt * MultiLevelExitCore::mutateLoop( 523 const Stmt * body, Entry & entry ) { 532 524 if ( entry.isBreakUsed() ) { 533 525 break_label = entry.useBreakExit(); 534 526 } 535 527 528 // if continue is used insert a continue label into the back of the body of the loop 536 529 if ( entry.isContUsed() ) { 537 ast::CompoundStmt * new_body = new ast::CompoundStmt( body->location ); 530 CompoundStmt * new_body = new CompoundStmt( body->location ); 531 // {} 538 532 new_body->kids.push_back( body ); 533 // { 534 // body 535 // } 539 536 new_body->kids.push_back( 540 537 labelledNullStmt( body->location, entry.useContExit() ) ); 538 // { 539 // body 540 // ContinueLabel: {} 541 // } 541 542 return new_body; 542 543 } … … 549 550 // Remember is loop before going onto mutate the body. 550 551 // The labels will be folded in if they are used. 551 ast::Label breakLabel = LabelGenerator::newLabel( "loopBreak", loopStmt );552 ast::Label contLabel = LabelGenerator::newLabel( "loopContinue", loopStmt );552 Label breakLabel = newLabel( "loopBreak", loopStmt ); 553 Label contLabel = newLabel( "loopContinue", loopStmt ); 553 554 enclosing_control_structures.emplace_back( loopStmt, breakLabel, contLabel ); 555 // labels are added temporarily to see if they are used and then added permanently in postvisit if ther are used 556 // children will tag labels as being used during their traversal which occurs before postvisit 557 558 // GuardAction calls the lambda after the node is done being visited 554 559 GuardAction( [this](){ enclosing_control_structures.pop_back(); } ); 555 560 } … … 557 562 template<typename LoopNode> 558 563 const LoopNode * MultiLevelExitCore::posthandleLoopStmt( const LoopNode * loopStmt ) { 559 assert( ! enclosing_control_structures.empty() );564 assert( ! enclosing_control_structures.empty() ); 560 565 Entry & entry = enclosing_control_structures.back(); 561 566 assert( entry.stmt == loopStmt ); 562 567 563 // Now we check if the labels are used and add them if so. 564 return ast::mutate_field( 565 loopStmt, &LoopNode::body, mutateLoop( loopStmt->body, entry ) ); 566 } 567 568 std::list<ast::ptr<ast::Stmt>> MultiLevelExitCore::fixBlock( 569 const std::list<ast::ptr<ast::Stmt>> & kids, bool is_case_clause ) { 570 // Unfortunately we can't use the automatic error collection. 568 // Now check if the labels are used and add them if so. 569 return mutate_field( loopStmt, &LoopNode::body, mutateLoop( loopStmt->body, entry ) ); 570 // this call to mutate_field compares loopStmt->body and the result of mutateLoop 571 // if they are the same the node isn't mutated, if they differ then the new mutated node is returned 572 // the stmts will only differ if a label is used 573 } 574 575 list<ptr<Stmt>> MultiLevelExitCore::fixBlock( 576 const list<ptr<Stmt>> & kids, bool is_case_clause ) { 577 // Unfortunately cannot use automatic error collection. 571 578 SemanticErrorException errors; 572 579 573 std::list<ast::ptr<ast::Stmt>> ret;580 list<ptr<Stmt>> ret; 574 581 575 582 // Manually visit each child. 576 for ( const ast::ptr<ast::Stmt> & kid : kids ) {583 for ( const ptr<Stmt> & kid : kids ) { 577 584 if ( is_case_clause ) { 578 585 // Once a label is seen, it's no longer a valid for fallthrough. 579 for ( const ast::Label & l : kid->labels ) {586 for ( const Label & l : kid->labels ) { 580 587 fallthrough_labels.erase( l ); 581 588 } … … 588 595 } 589 596 590 if ( !break_label.empty() ) { 591 ret.push_back( 592 labelledNullStmt( ret.back()->location, break_label ) ); 593 break_label = ast::Label( CodeLocation(), "" ); 594 } 595 } 596 597 if ( !errors.isEmpty() ) { 597 if ( ! break_label.empty() ) { 598 ret.push_back( labelledNullStmt( ret.back()->location, break_label ) ); 599 break_label = Label( CodeLocation(), "" ); 600 } 601 } 602 603 if ( ! errors.isEmpty() ) { 598 604 throw errors; 599 605 } … … 601 607 } 602 608 603 } // namespace 604 605 const ast::CompoundStmt * multiLevelExitUpdate( 606 const ast::CompoundStmt * stmt, 607 const LabelToStmt & labelTable ) { 609 const CompoundStmt * multiLevelExitUpdate( 610 const CompoundStmt * stmt, 611 const LabelToStmt & labelTable ) { 608 612 // Must start in the body, so FunctionDecls can be a stopping point. 609 ast::Pass<MultiLevelExitCore> visitor( labelTable );610 const ast::CompoundStmt * ret = stmt->accept( visitor );613 Pass<MultiLevelExitCore> visitor( labelTable ); 614 const CompoundStmt * ret = stmt->accept( visitor ); 611 615 return ret; 612 616 } 613 614 617 } // namespace ControlStruct 615 618 -
src/ControlStruct/MultiLevelExit.hpp
r5f3ba11 rb56ad5e 9 9 // Author : Andrew Beach 10 10 // Created On : Mon Nov 1 13:49:00 2021 11 // Last Modified By : Andrew Beach12 // Last Modified On : Mon Nov 8 10:53:00 202113 // Update Count : 311 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Mon Jan 31 22:34:06 2022 13 // Update Count : 6 14 14 // 15 15 … … 19 19 20 20 namespace ast { 21 class CompoundStmt;22 class Label;23 class Stmt;21 class CompoundStmt; 22 class Label; 23 class Stmt; 24 24 } 25 25 26 26 namespace ControlStruct { 27 28 27 using LabelToStmt = std::map<ast::Label, const ast::Stmt *>; 29 28 30 /// Mutate a function body to handle multi-level exits. 31 const ast::CompoundStmt * multiLevelExitUpdate( 32 const ast::CompoundStmt *, const LabelToStmt & ); 33 29 // Mutate a function body to handle multi-level exits. 30 const ast::CompoundStmt * multiLevelExitUpdate( const ast::CompoundStmt *, const LabelToStmt & ); 34 31 } 35 32 -
src/ControlStruct/module.mk
r5f3ba11 rb56ad5e 10 10 ## Author : Richard C. Bilson 11 11 ## Created On : Mon Jun 1 17:49:17 2015 12 ## Last Modified By : Henry Xue13 ## Last Modified On : Tue Jul 20 04:10:50 202114 ## Update Count : 512 ## Last Modified By : Peter A. Buhr 13 ## Last Modified On : Sat Jan 29 12:04:19 2022 14 ## Update Count : 7 15 15 ############################################################################### 16 16 … … 22 22 ControlStruct/ForExprMutator.cc \ 23 23 ControlStruct/ForExprMutator.h \ 24 ControlStruct/HoistControlDecls.cpp \ 25 ControlStruct/HoistControlDecls.hpp \ 24 26 ControlStruct/LabelFixer.cc \ 25 27 ControlStruct/LabelFixer.h \ 26 28 ControlStruct/LabelGenerator.cc \ 27 29 ControlStruct/LabelGenerator.h \ 30 ControlStruct/LabelGeneratorNew.cpp \ 31 ControlStruct/LabelGeneratorNew.hpp \ 28 32 ControlStruct/MLEMutator.cc \ 29 33 ControlStruct/MLEMutator.h \
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