1 | /* |
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2 | * This file is part of the Cforall project |
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3 | * |
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4 | * $Id: MakeLibCfa.cc,v 1.6 2005/08/29 20:14:14 rcbilson Exp $ |
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5 | * |
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6 | */ |
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7 | |
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8 | #include "MakeLibCfa.h" |
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9 | #include "SynTree/Declaration.h" |
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10 | #include "SynTree/Type.h" |
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11 | #include "SynTree/Expression.h" |
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12 | #include "SynTree/Statement.h" |
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13 | #include "SynTree/Initializer.h" |
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14 | #include "SynTree/Visitor.h" |
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15 | #include "CodeGen/OperatorTable.h" |
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16 | #include "UniqueName.h" |
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17 | |
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18 | |
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19 | namespace LibCfa { |
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20 | |
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21 | class MakeLibCfa : public Visitor |
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22 | { |
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23 | public: |
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24 | void visit( FunctionDecl* funcDecl ); |
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25 | void visit( ObjectDecl* objDecl ); |
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26 | |
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27 | std::list< Declaration* > &get_newDecls() { return newDecls; } |
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28 | |
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29 | private: |
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30 | std::list< Declaration* > newDecls; |
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31 | }; |
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32 | |
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33 | void |
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34 | makeLibCfa( std::list< Declaration* > &prelude ) |
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35 | { |
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36 | MakeLibCfa maker; |
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37 | acceptAll( prelude, maker ); |
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38 | prelude.splice( prelude.end(), maker.get_newDecls() ); |
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39 | } |
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40 | |
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41 | void |
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42 | MakeLibCfa::visit( FunctionDecl* origFuncDecl ) |
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43 | { |
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44 | if( origFuncDecl->get_linkage() != LinkageSpec::Intrinsic ) return; |
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45 | |
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46 | FunctionDecl *funcDecl = origFuncDecl->clone(); |
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47 | CodeGen::OperatorInfo opInfo; |
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48 | bool lookResult = CodeGen::operatorLookup( funcDecl->get_name(), opInfo ); |
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49 | assert( lookResult ); |
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50 | assert( !funcDecl->get_statements() ); |
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51 | UntypedExpr *newExpr = new UntypedExpr( new NameExpr( funcDecl->get_name() ) ); |
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52 | UniqueName paramNamer( "_p" ); |
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53 | std::list< DeclarationWithType* >::iterator param = funcDecl->get_functionType()->get_parameters().begin(); |
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54 | assert( param != funcDecl->get_functionType()->get_parameters().end() ); |
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55 | if( (*param)->get_name() == "" ) { |
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56 | (*param)->set_name( paramNamer.newName() ); |
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57 | (*param)->set_linkage( LinkageSpec::C ); |
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58 | } |
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59 | switch( opInfo.type ) { |
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60 | case CodeGen::OT_INDEX: |
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61 | case CodeGen::OT_CALL: |
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62 | case CodeGen::OT_PREFIX: |
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63 | case CodeGen::OT_POSTFIX: |
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64 | case CodeGen::OT_INFIX: |
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65 | newExpr->get_args().push_back( new VariableExpr( *param ) ); |
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66 | break; |
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67 | |
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68 | case CodeGen::OT_PREFIXASSIGN: |
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69 | case CodeGen::OT_POSTFIXASSIGN: |
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70 | case CodeGen::OT_INFIXASSIGN: |
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71 | { |
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72 | newExpr->get_args().push_back( new VariableExpr( *param ) ); |
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73 | /// UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) ); |
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74 | /// deref->get_args().push_back( new VariableExpr( *param ) ); |
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75 | /// newExpr->get_args().push_back( deref ); |
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76 | break; |
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77 | } |
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78 | |
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79 | case CodeGen::OT_CONSTANT: |
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80 | assert( false ); |
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81 | } |
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82 | for( param++; param != funcDecl->get_functionType()->get_parameters().end(); ++param ) { |
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83 | if( (*param)->get_name() == "" ) { |
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84 | (*param)->set_name( paramNamer.newName() ); |
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85 | (*param)->set_linkage( LinkageSpec::C ); |
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86 | } |
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87 | newExpr->get_args().push_back( new VariableExpr( *param ) ); |
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88 | } |
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89 | funcDecl->set_statements( new CompoundStmt( std::list< Label >() ) ); |
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90 | funcDecl->get_statements()->get_kids().push_back( new ReturnStmt( std::list< Label >(), newExpr ) ); |
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91 | newDecls.push_back( funcDecl ); |
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92 | } |
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93 | |
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94 | void |
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95 | MakeLibCfa::visit( ObjectDecl* origObjDecl ) |
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96 | { |
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97 | if( origObjDecl->get_linkage() != LinkageSpec::Intrinsic ) return; |
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98 | |
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99 | ObjectDecl *objDecl = origObjDecl->clone(); |
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100 | assert( !objDecl->get_init() ); |
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101 | std::list< Expression* > noDesignators; |
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102 | objDecl->set_init( new SingleInit( new NameExpr( objDecl->get_name() ), noDesignators ) ); |
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103 | newDecls.push_back( objDecl ); |
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104 | } |
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105 | |
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106 | } // namespace LibCfa |
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