[64adb03] | 1 | // |
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo |
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| 3 | // |
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| 4 | // The contents of this file are covered under the licence agreement in the |
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| 5 | // file "LICENCE" distributed with Cforall. |
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| 6 | // |
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| 7 | // Keywords.cc -- |
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| 8 | // |
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| 9 | // Author : Thierry Delisle |
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| 10 | // Created On : Mon Mar 13 12:41:22 2017 |
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| 11 | // Last Modified By : |
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| 12 | // Last Modified On : |
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[07de76b] | 13 | // Update Count : 10 |
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[64adb03] | 14 | // |
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| 15 | |
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| 16 | #include "Concurrency/Keywords.h" |
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| 17 | |
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[427854b] | 18 | #include <cassert> // for assert |
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| 19 | #include <string> // for string, operator== |
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| 20 | |
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[1c01c58] | 21 | #include <iostream> |
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| 22 | |
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| 23 | #include "Common/Examine.h" // for isMainFor |
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[427854b] | 24 | #include "Common/PassVisitor.h" // for PassVisitor |
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| 25 | #include "Common/SemanticError.h" // for SemanticError |
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| 26 | #include "Common/utility.h" // for deleteAll, map_range |
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| 27 | #include "CodeGen/OperatorTable.h" // for isConstructor |
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| 28 | #include "ControlStruct/LabelGenerator.h" // for LebelGenerator |
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| 29 | #include "InitTweak/InitTweak.h" // for getPointerBase |
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| 30 | #include "SynTree/LinkageSpec.h" // for Cforall |
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| 31 | #include "SynTree/Constant.h" // for Constant |
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| 32 | #include "SynTree/Declaration.h" // for StructDecl, FunctionDecl, ObjectDecl |
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| 33 | #include "SynTree/Expression.h" // for VariableExpr, ConstantExpr, Untype... |
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| 34 | #include "SynTree/Initializer.h" // for SingleInit, ListInit, Initializer ... |
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| 35 | #include "SynTree/Label.h" // for Label |
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| 36 | #include "SynTree/Statement.h" // for CompoundStmt, DeclStmt, ExprStmt |
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| 37 | #include "SynTree/Type.h" // for StructInstType, Type, PointerType |
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| 38 | #include "SynTree/Visitor.h" // for Visitor, acceptAll |
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[1c01c58] | 39 | #include "Virtual/Tables.h" |
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[bf2438c] | 40 | |
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| 41 | class Attribute; |
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[64adb03] | 42 | |
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| 43 | namespace Concurrency { |
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[ecfd758] | 44 | inline static std::string getTypeIdName( std::string const & exception_name ) { |
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| 45 | return exception_name.empty() ? std::string() : Virtual::typeIdType( exception_name ); |
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| 46 | } |
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[1c01c58] | 47 | inline static std::string getVTableName( std::string const & exception_name ) { |
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[ecfd758] | 48 | return exception_name.empty() ? std::string() : Virtual::vtableTypeName( exception_name ); |
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[1c01c58] | 49 | } |
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| 50 | |
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[ab8c6a6] | 51 | // Only detects threads constructed with the keyword thread. |
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| 52 | inline static bool isThread( DeclarationWithType * decl ) { |
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| 53 | Type * baseType = decl->get_type()->stripDeclarator(); |
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| 54 | StructInstType * instType = dynamic_cast<StructInstType *>( baseType ); |
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| 55 | if ( nullptr == instType ) { return false; } |
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| 56 | return instType->baseStruct->is_thread(); |
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| 57 | } |
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| 58 | |
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[64adb03] | 59 | //============================================================================================= |
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[2065609] | 60 | // Pass declarations |
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[64adb03] | 61 | //============================================================================================= |
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| 62 | |
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[bcda04c] | 63 | //----------------------------------------------------------------------------- |
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| 64 | //Handles sue type declarations : |
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| 65 | // sue MyType { struct MyType { |
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| 66 | // int data; int data; |
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| 67 | // a_struct_t more_data; a_struct_t more_data; |
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| 68 | // => NewField_t newField; |
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| 69 | // }; }; |
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| 70 | // static inline NewField_t * getter_name( MyType * this ) { return &this->newField; } |
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| 71 | // |
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[2065609] | 72 | class ConcurrentSueKeyword : public WithDeclsToAdd { |
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[bcda04c] | 73 | public: |
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| 74 | |
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[1c01c58] | 75 | ConcurrentSueKeyword( std::string&& type_name, std::string&& field_name, |
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| 76 | std::string&& getter_name, std::string&& context_error, std::string&& exception_name, |
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| 77 | bool needs_main, AggregateDecl::Aggregate cast_target ) : |
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| 78 | type_name( type_name ), field_name( field_name ), getter_name( getter_name ), |
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[69c5c00] | 79 | context_error( context_error ), exception_name( exception_name ), |
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[ecfd758] | 80 | typeid_name( getTypeIdName( exception_name ) ), |
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[69c5c00] | 81 | vtable_name( getVTableName( exception_name ) ), |
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[1c01c58] | 82 | needs_main( needs_main ), cast_target( cast_target ) {} |
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[bcda04c] | 83 | |
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| 84 | virtual ~ConcurrentSueKeyword() {} |
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| 85 | |
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[9a705dc8] | 86 | Declaration * postmutate( StructDecl * decl ); |
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[6c3a5ac1] | 87 | DeclarationWithType * postmutate( FunctionDecl * decl ); |
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[bcda04c] | 88 | |
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| 89 | void handle( StructDecl * ); |
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[ecfd758] | 90 | void addTypeId( StructDecl * ); |
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[1c01c58] | 91 | void addVtableForward( StructDecl * ); |
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[bcda04c] | 92 | FunctionDecl * forwardDeclare( StructDecl * ); |
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| 93 | ObjectDecl * addField( StructDecl * ); |
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[2f9a722] | 94 | void addRoutines( ObjectDecl *, FunctionDecl * ); |
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[bcda04c] | 95 | |
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| 96 | virtual bool is_target( StructDecl * decl ) = 0; |
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| 97 | |
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[9a705dc8] | 98 | Expression * postmutate( KeywordCastExpr * cast ); |
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| 99 | |
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[bcda04c] | 100 | private: |
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| 101 | const std::string type_name; |
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| 102 | const std::string field_name; |
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| 103 | const std::string getter_name; |
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| 104 | const std::string context_error; |
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[69c5c00] | 105 | const std::string exception_name; |
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[ecfd758] | 106 | const std::string typeid_name; |
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[1c01c58] | 107 | const std::string vtable_name; |
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[bd4d011] | 108 | bool needs_main; |
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[312029a] | 109 | AggregateDecl::Aggregate cast_target; |
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[bcda04c] | 110 | |
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[6c3a5ac1] | 111 | StructDecl * type_decl = nullptr; |
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| 112 | FunctionDecl * dtor_decl = nullptr; |
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[69c5c00] | 113 | StructDecl * except_decl = nullptr; |
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[ecfd758] | 114 | StructDecl * typeid_decl = nullptr; |
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[1c01c58] | 115 | StructDecl * vtable_decl = nullptr; |
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[bcda04c] | 116 | }; |
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| 117 | |
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| 118 | |
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[64adb03] | 119 | //----------------------------------------------------------------------------- |
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| 120 | //Handles thread type declarations : |
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| 121 | // thread Mythread { struct MyThread { |
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| 122 | // int data; int data; |
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| 123 | // a_struct_t more_data; a_struct_t more_data; |
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[ac2b598] | 124 | // => $thread __thrd_d; |
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[64adb03] | 125 | // }; }; |
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[ac2b598] | 126 | // static inline $thread * get_thread( MyThread * this ) { return &this->__thrd_d; } |
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[64adb03] | 127 | // |
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[bcda04c] | 128 | class ThreadKeyword final : public ConcurrentSueKeyword { |
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[64adb03] | 129 | public: |
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| 130 | |
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[bcda04c] | 131 | ThreadKeyword() : ConcurrentSueKeyword( |
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[ac2b598] | 132 | "$thread", |
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[bcda04c] | 133 | "__thrd", |
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| 134 | "get_thread", |
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[6c3a5ac1] | 135 | "thread keyword requires threads to be in scope, add #include <thread.hfa>\n", |
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[ab8c6a6] | 136 | "ThreadCancelled", |
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[9a705dc8] | 137 | true, |
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[312029a] | 138 | AggregateDecl::Thread |
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[bcda04c] | 139 | ) |
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| 140 | {} |
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| 141 | |
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| 142 | virtual ~ThreadKeyword() {} |
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| 143 | |
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| 144 | virtual bool is_target( StructDecl * decl ) override final { return decl->is_thread(); } |
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| 145 | |
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| 146 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 147 | PassVisitor< ThreadKeyword > impl; |
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[9a705dc8] | 148 | mutateAll( translationUnit, impl ); |
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[bcda04c] | 149 | } |
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[64adb03] | 150 | }; |
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| 151 | |
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| 152 | //----------------------------------------------------------------------------- |
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| 153 | //Handles coroutine type declarations : |
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| 154 | // coroutine MyCoroutine { struct MyCoroutine { |
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| 155 | // int data; int data; |
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| 156 | // a_struct_t more_data; a_struct_t more_data; |
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[ac2b598] | 157 | // => $coroutine __cor_d; |
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[64adb03] | 158 | // }; }; |
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[ac2b598] | 159 | // static inline $coroutine * get_coroutine( MyCoroutine * this ) { return &this->__cor_d; } |
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[64adb03] | 160 | // |
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[bcda04c] | 161 | class CoroutineKeyword final : public ConcurrentSueKeyword { |
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[64adb03] | 162 | public: |
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| 163 | |
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[bcda04c] | 164 | CoroutineKeyword() : ConcurrentSueKeyword( |
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[ac2b598] | 165 | "$coroutine", |
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[bcda04c] | 166 | "__cor", |
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| 167 | "get_coroutine", |
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[6c3a5ac1] | 168 | "coroutine keyword requires coroutines to be in scope, add #include <coroutine.hfa>\n", |
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[1c01c58] | 169 | "CoroutineCancelled", |
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[9a705dc8] | 170 | true, |
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[312029a] | 171 | AggregateDecl::Coroutine |
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[bcda04c] | 172 | ) |
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| 173 | {} |
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[b32ada31] | 174 | |
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[bcda04c] | 175 | virtual ~CoroutineKeyword() {} |
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| 176 | |
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| 177 | virtual bool is_target( StructDecl * decl ) override final { return decl->is_coroutine(); } |
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[b32ada31] | 178 | |
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| 179 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 180 | PassVisitor< CoroutineKeyword > impl; |
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[9a705dc8] | 181 | mutateAll( translationUnit, impl ); |
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[b32ada31] | 182 | } |
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[64adb03] | 183 | }; |
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| 184 | |
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[427854b] | 185 | |
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| 186 | |
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[64adb03] | 187 | //----------------------------------------------------------------------------- |
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| 188 | //Handles monitor type declarations : |
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| 189 | // monitor MyMonitor { struct MyMonitor { |
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| 190 | // int data; int data; |
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| 191 | // a_struct_t more_data; a_struct_t more_data; |
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[ac2b598] | 192 | // => $monitor __mon_d; |
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[64adb03] | 193 | // }; }; |
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[ac2b598] | 194 | // static inline $monitor * get_coroutine( MyMonitor * this ) { return &this->__cor_d; } |
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[64adb03] | 195 | // |
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[bcda04c] | 196 | class MonitorKeyword final : public ConcurrentSueKeyword { |
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[64adb03] | 197 | public: |
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| 198 | |
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[bcda04c] | 199 | MonitorKeyword() : ConcurrentSueKeyword( |
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[ac2b598] | 200 | "$monitor", |
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[bcda04c] | 201 | "__mon", |
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| 202 | "get_monitor", |
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[6c3a5ac1] | 203 | "monitor keyword requires monitors to be in scope, add #include <monitor.hfa>\n", |
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[1c01c58] | 204 | "", |
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[9a705dc8] | 205 | false, |
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[312029a] | 206 | AggregateDecl::Monitor |
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[bcda04c] | 207 | ) |
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| 208 | {} |
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| 209 | |
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| 210 | virtual ~MonitorKeyword() {} |
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| 211 | |
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| 212 | virtual bool is_target( StructDecl * decl ) override final { return decl->is_monitor(); } |
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| 213 | |
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| 214 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 215 | PassVisitor< MonitorKeyword > impl; |
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[9a705dc8] | 216 | mutateAll( translationUnit, impl ); |
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[bcda04c] | 217 | } |
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[64adb03] | 218 | }; |
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| 219 | |
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[427854b] | 220 | //----------------------------------------------------------------------------- |
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| 221 | //Handles generator type declarations : |
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| 222 | // generator MyGenerator { struct MyGenerator { |
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| 223 | // int data; int data; |
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| 224 | // a_struct_t more_data; a_struct_t more_data; |
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| 225 | // => int __gen_next; |
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| 226 | // }; }; |
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| 227 | // |
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| 228 | class GeneratorKeyword final : public ConcurrentSueKeyword { |
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| 229 | public: |
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| 230 | |
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| 231 | GeneratorKeyword() : ConcurrentSueKeyword( |
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| 232 | "$generator", |
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| 233 | "__generator_state", |
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| 234 | "get_generator", |
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| 235 | "Unable to find builtin type $generator\n", |
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[1c01c58] | 236 | "", |
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[427854b] | 237 | true, |
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| 238 | AggregateDecl::Generator |
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| 239 | ) |
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| 240 | {} |
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| 241 | |
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| 242 | virtual ~GeneratorKeyword() {} |
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| 243 | |
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| 244 | virtual bool is_target( StructDecl * decl ) override final { return decl->is_generator(); } |
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| 245 | |
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| 246 | static void implement( std::list< Declaration * > & translationUnit ) { |
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| 247 | PassVisitor< GeneratorKeyword > impl; |
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| 248 | mutateAll( translationUnit, impl ); |
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| 249 | } |
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| 250 | }; |
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| 251 | |
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| 252 | |
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| 253 | //----------------------------------------------------------------------------- |
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| 254 | class SuspendKeyword final : public WithStmtsToAdd, public WithGuards { |
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| 255 | public: |
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| 256 | SuspendKeyword() = default; |
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| 257 | virtual ~SuspendKeyword() = default; |
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| 258 | |
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| 259 | void premutate( FunctionDecl * ); |
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| 260 | DeclarationWithType * postmutate( FunctionDecl * ); |
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| 261 | |
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| 262 | Statement * postmutate( SuspendStmt * ); |
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| 263 | |
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| 264 | static void implement( std::list< Declaration * > & translationUnit ) { |
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| 265 | PassVisitor< SuspendKeyword > impl; |
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| 266 | mutateAll( translationUnit, impl ); |
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| 267 | } |
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| 268 | |
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| 269 | private: |
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| 270 | bool is_real_suspend( FunctionDecl * ); |
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| 271 | |
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| 272 | Statement * make_generator_suspend( SuspendStmt * ); |
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| 273 | Statement * make_coroutine_suspend( SuspendStmt * ); |
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| 274 | |
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| 275 | struct LabelPair { |
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| 276 | Label obj; |
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| 277 | int idx; |
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| 278 | }; |
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| 279 | |
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| 280 | LabelPair make_label() { |
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| 281 | labels.push_back( gen.newLabel("generator") ); |
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| 282 | return { labels.back(), int(labels.size()) }; |
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| 283 | } |
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| 284 | |
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| 285 | DeclarationWithType * in_generator = nullptr; |
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| 286 | FunctionDecl * decl_suspend = nullptr; |
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| 287 | std::vector<Label> labels; |
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| 288 | ControlStruct::LabelGenerator & gen = *ControlStruct::LabelGenerator::getGenerator(); |
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| 289 | }; |
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| 290 | |
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[64adb03] | 291 | //----------------------------------------------------------------------------- |
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| 292 | //Handles mutex routines definitions : |
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| 293 | // void foo( A * mutex a, B * mutex b, int i ) { void foo( A * a, B * b, int i ) { |
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[ac2b598] | 294 | // $monitor * __monitors[] = { get_monitor(a), get_monitor(b) }; |
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[64adb03] | 295 | // monitor_guard_t __guard = { __monitors, 2 }; |
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| 296 | // /*Some code*/ => /*Some code*/ |
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| 297 | // } } |
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| 298 | // |
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[2065609] | 299 | class MutexKeyword final { |
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[64adb03] | 300 | public: |
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| 301 | |
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[2065609] | 302 | void postvisit( FunctionDecl * decl ); |
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| 303 | void postvisit( StructDecl * decl ); |
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[64adb03] | 304 | |
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[db4d8e3] | 305 | std::list<DeclarationWithType*> findMutexArgs( FunctionDecl*, bool & first ); |
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[64adb03] | 306 | void validate( DeclarationWithType * ); |
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[ab8c6a6] | 307 | void addDtorStatements( FunctionDecl* func, CompoundStmt *, const std::list<DeclarationWithType * > &); |
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| 308 | void addStatements( FunctionDecl* func, CompoundStmt *, const std::list<DeclarationWithType * > &); |
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| 309 | void addThreadDtorStatements( FunctionDecl* func, CompoundStmt * body, const std::list<DeclarationWithType * > & args ); |
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[64adb03] | 310 | |
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| 311 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 312 | PassVisitor< MutexKeyword > impl; |
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[64adb03] | 313 | acceptAll( translationUnit, impl ); |
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| 314 | } |
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[9243cc91] | 315 | |
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| 316 | private: |
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| 317 | StructDecl* monitor_decl = nullptr; |
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[ef42b143] | 318 | StructDecl* guard_decl = nullptr; |
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[549c006] | 319 | StructDecl* dtor_guard_decl = nullptr; |
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[ab8c6a6] | 320 | StructDecl* thread_guard_decl = nullptr; |
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[97e3296] | 321 | |
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| 322 | static std::unique_ptr< Type > generic_func; |
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[64adb03] | 323 | }; |
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| 324 | |
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[97e3296] | 325 | std::unique_ptr< Type > MutexKeyword::generic_func = std::unique_ptr< Type >( |
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| 326 | new FunctionType( |
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| 327 | noQualifiers, |
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| 328 | true |
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| 329 | ) |
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| 330 | ); |
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| 331 | |
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[bd4d011] | 332 | //----------------------------------------------------------------------------- |
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| 333 | //Handles mutex routines definitions : |
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| 334 | // void foo( A * mutex a, B * mutex b, int i ) { void foo( A * a, B * b, int i ) { |
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[ac2b598] | 335 | // $monitor * __monitors[] = { get_monitor(a), get_monitor(b) }; |
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[bd4d011] | 336 | // monitor_guard_t __guard = { __monitors, 2 }; |
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| 337 | // /*Some code*/ => /*Some code*/ |
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| 338 | // } } |
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| 339 | // |
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[2065609] | 340 | class ThreadStarter final { |
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[bd4d011] | 341 | public: |
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| 342 | |
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[2065609] | 343 | void postvisit( FunctionDecl * decl ); |
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[549c006] | 344 | void previsit ( StructDecl * decl ); |
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[bd4d011] | 345 | |
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| 346 | void addStartStatement( FunctionDecl * decl, DeclarationWithType * param ); |
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| 347 | |
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| 348 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 349 | PassVisitor< ThreadStarter > impl; |
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[bd4d011] | 350 | acceptAll( translationUnit, impl ); |
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| 351 | } |
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[549c006] | 352 | |
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| 353 | private : |
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| 354 | bool thread_ctor_seen = false; |
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| 355 | StructDecl * thread_decl = nullptr; |
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[bd4d011] | 356 | }; |
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| 357 | |
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[64adb03] | 358 | //============================================================================================= |
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| 359 | // General entry routine |
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| 360 | //============================================================================================= |
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| 361 | void applyKeywords( std::list< Declaration * > & translationUnit ) { |
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| 362 | ThreadKeyword ::implement( translationUnit ); |
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| 363 | CoroutineKeyword ::implement( translationUnit ); |
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| 364 | MonitorKeyword ::implement( translationUnit ); |
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[427854b] | 365 | GeneratorKeyword ::implement( translationUnit ); |
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| 366 | SuspendKeyword ::implement( translationUnit ); |
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[bcda04c] | 367 | } |
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| 368 | |
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| 369 | void implementMutexFuncs( std::list< Declaration * > & translationUnit ) { |
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[64adb03] | 370 | MutexKeyword ::implement( translationUnit ); |
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| 371 | } |
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| 372 | |
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[bcda04c] | 373 | void implementThreadStarter( std::list< Declaration * > & translationUnit ) { |
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[bd4d011] | 374 | ThreadStarter ::implement( translationUnit ); |
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[bcda04c] | 375 | } |
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| 376 | |
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[b32ada31] | 377 | //============================================================================================= |
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[bcda04c] | 378 | // Generic keyword implementation |
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[b32ada31] | 379 | //============================================================================================= |
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[2db79e5] | 380 | void fixupGenerics(FunctionType * func, StructDecl * decl) { |
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| 381 | cloneAll(decl->parameters, func->forall); |
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| 382 | for ( TypeDecl * td : func->forall ) { |
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| 383 | strict_dynamic_cast<StructInstType*>( |
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| 384 | func->parameters.front()->get_type()->stripReferences() |
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| 385 | )->parameters.push_back( |
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| 386 | new TypeExpr( new TypeInstType( noQualifiers, td->name, td ) ) |
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| 387 | ); |
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| 388 | } |
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| 389 | } |
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| 390 | |
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[9a705dc8] | 391 | Declaration * ConcurrentSueKeyword::postmutate(StructDecl * decl) { |
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[9f5ecf5] | 392 | if( decl->name == type_name && decl->body ) { |
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[bcda04c] | 393 | assert( !type_decl ); |
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| 394 | type_decl = decl; |
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[b32ada31] | 395 | } |
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[bcda04c] | 396 | else if ( is_target(decl) ) { |
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[b32ada31] | 397 | handle( decl ); |
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| 398 | } |
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[69c5c00] | 399 | else if ( !except_decl && exception_name == decl->name && decl->body ) { |
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| 400 | except_decl = decl; |
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| 401 | } |
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[ecfd758] | 402 | else if ( !typeid_decl && typeid_name == decl->name && decl->body ) { |
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| 403 | typeid_decl = decl; |
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| 404 | } |
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[1c01c58] | 405 | else if ( !vtable_decl && vtable_name == decl->name && decl->body ) { |
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| 406 | vtable_decl = decl; |
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| 407 | } |
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| 408 | // Might be able to get ride of is target. |
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| 409 | assert( is_target(decl) == (cast_target == decl->kind) ); |
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[9a705dc8] | 410 | return decl; |
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[b32ada31] | 411 | } |
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| 412 | |
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[6c3a5ac1] | 413 | DeclarationWithType * ConcurrentSueKeyword::postmutate( FunctionDecl * decl ) { |
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[1c01c58] | 414 | if ( type_decl && isDestructorFor( decl, type_decl ) ) |
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| 415 | dtor_decl = decl; |
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| 416 | else if ( vtable_name.empty() ) |
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| 417 | ; |
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[43cedfb1] | 418 | else if( !decl->has_body() ) |
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| 419 | ; |
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[1c01c58] | 420 | else if ( auto param = isMainFor( decl, cast_target ) ) { |
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| 421 | // This should never trigger. |
---|
| 422 | assert( vtable_decl ); |
---|
| 423 | // Should be safe because of isMainFor. |
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| 424 | StructInstType * struct_type = static_cast<StructInstType *>( |
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| 425 | static_cast<ReferenceType *>( param->get_type() )->base ); |
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| 426 | assert( struct_type ); |
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| 427 | |
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[69c5c00] | 428 | std::list< Expression * > poly_args = { new TypeExpr( struct_type->clone() ) }; |
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| 429 | ObjectDecl * vtable_object = Virtual::makeVtableInstance( |
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| 430 | vtable_decl->makeInst( poly_args ), struct_type, nullptr ); |
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| 431 | declsToAddAfter.push_back( vtable_object ); |
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| 432 | declsToAddAfter.push_back( Virtual::makeGetExceptionFunction( |
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| 433 | vtable_object, except_decl->makeInst( std::move( poly_args ) ) |
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| 434 | ) ); |
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[1c01c58] | 435 | } |
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[6c3a5ac1] | 436 | |
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| 437 | return decl; |
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| 438 | } |
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| 439 | |
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[9a705dc8] | 440 | Expression * ConcurrentSueKeyword::postmutate( KeywordCastExpr * cast ) { |
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| 441 | if ( cast_target == cast->target ) { |
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[ac2b598] | 442 | // convert (thread &)t to ($thread &)*get_thread(t), etc. |
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[9a705dc8] | 443 | if( !type_decl ) SemanticError( cast, context_error ); |
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[6c3a5ac1] | 444 | if( !dtor_decl ) SemanticError( cast, context_error ); |
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[3b0c8cb] | 445 | assert( cast->result == nullptr ); |
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| 446 | cast->set_result( new ReferenceType( noQualifiers, new StructInstType( noQualifiers, type_decl ) ) ); |
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| 447 | cast->concrete_target.field = field_name; |
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| 448 | cast->concrete_target.getter = getter_name; |
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[9a705dc8] | 449 | } |
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| 450 | return cast; |
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| 451 | } |
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| 452 | |
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| 453 | |
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[bcda04c] | 454 | void ConcurrentSueKeyword::handle( StructDecl * decl ) { |
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[9f5ecf5] | 455 | if( ! decl->body ) return; |
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[b32ada31] | 456 | |
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[a16764a6] | 457 | if( !type_decl ) SemanticError( decl, context_error ); |
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[6c3a5ac1] | 458 | if( !dtor_decl ) SemanticError( decl, context_error ); |
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[b32ada31] | 459 | |
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[ecfd758] | 460 | if ( !exception_name.empty() ) { |
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| 461 | if( !typeid_decl ) SemanticError( decl, context_error ); |
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| 462 | if( !vtable_decl ) SemanticError( decl, context_error ); |
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| 463 | |
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| 464 | addTypeId( decl ); |
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| 465 | addVtableForward( decl ); |
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| 466 | } |
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[bcda04c] | 467 | FunctionDecl * func = forwardDeclare( decl ); |
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| 468 | ObjectDecl * field = addField( decl ); |
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[2f9a722] | 469 | addRoutines( field, func ); |
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[b32ada31] | 470 | } |
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| 471 | |
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[ecfd758] | 472 | void ConcurrentSueKeyword::addTypeId( StructDecl * decl ) { |
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| 473 | assert( typeid_decl ); |
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| 474 | StructInstType typeid_type( Type::Const, typeid_decl ); |
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| 475 | typeid_type.parameters.push_back( new TypeExpr( |
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| 476 | new StructInstType( noQualifiers, decl ) |
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[69c5c00] | 477 | ) ); |
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[ecfd758] | 478 | declsToAddBefore.push_back( Virtual::makeTypeIdInstance( &typeid_type ) ); |
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| 479 | } |
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| 480 | |
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| 481 | void ConcurrentSueKeyword::addVtableForward( StructDecl * decl ) { |
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| 482 | assert( vtable_decl ); |
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| 483 | std::list< Expression * > poly_args = { |
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| 484 | new TypeExpr( new StructInstType( noQualifiers, decl ) ), |
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| 485 | }; |
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| 486 | declsToAddBefore.push_back( Virtual::makeGetExceptionForward( |
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| 487 | vtable_decl->makeInst( poly_args ), |
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| 488 | except_decl->makeInst( poly_args ) |
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| 489 | ) ); |
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| 490 | declsToAddBefore.push_back( Virtual::makeVtableForward( |
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| 491 | vtable_decl->makeInst( move( poly_args ) ) ) ); |
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[1c01c58] | 492 | } |
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| 493 | |
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[bcda04c] | 494 | FunctionDecl * ConcurrentSueKeyword::forwardDeclare( StructDecl * decl ) { |
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| 495 | |
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| 496 | StructDecl * forward = decl->clone(); |
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| 497 | forward->set_body( false ); |
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| 498 | deleteAll( forward->get_members() ); |
---|
| 499 | forward->get_members().clear(); |
---|
| 500 | |
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[bd4d011] | 501 | FunctionType * get_type = new FunctionType( noQualifiers, false ); |
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[bcda04c] | 502 | ObjectDecl * this_decl = new ObjectDecl( |
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| 503 | "this", |
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[ba3706f] | 504 | noStorageClasses, |
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[b32ada31] | 505 | LinkageSpec::Cforall, |
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| 506 | nullptr, |
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[83a071f9] | 507 | new ReferenceType( |
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[b32ada31] | 508 | noQualifiers, |
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[bcda04c] | 509 | new StructInstType( |
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| 510 | noQualifiers, |
---|
| 511 | decl |
---|
| 512 | ) |
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[b32ada31] | 513 | ), |
---|
| 514 | nullptr |
---|
| 515 | ); |
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| 516 | |
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[2db79e5] | 517 | get_type->get_parameters().push_back( this_decl->clone() ); |
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[bd4d011] | 518 | get_type->get_returnVals().push_back( |
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[e04b636] | 519 | new ObjectDecl( |
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| 520 | "ret", |
---|
[ba3706f] | 521 | noStorageClasses, |
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[e04b636] | 522 | LinkageSpec::Cforall, |
---|
| 523 | nullptr, |
---|
| 524 | new PointerType( |
---|
| 525 | noQualifiers, |
---|
| 526 | new StructInstType( |
---|
| 527 | noQualifiers, |
---|
[bcda04c] | 528 | type_decl |
---|
[e04b636] | 529 | ) |
---|
| 530 | ), |
---|
| 531 | nullptr |
---|
| 532 | ) |
---|
| 533 | ); |
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[2db79e5] | 534 | fixupGenerics(get_type, decl); |
---|
[b32ada31] | 535 | |
---|
[bcda04c] | 536 | FunctionDecl * get_decl = new FunctionDecl( |
---|
| 537 | getter_name, |
---|
| 538 | Type::Static, |
---|
| 539 | LinkageSpec::Cforall, |
---|
[bd4d011] | 540 | get_type, |
---|
[bcda04c] | 541 | nullptr, |
---|
[a8078ee] | 542 | { new Attribute("const") }, |
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[bcda04c] | 543 | Type::Inline |
---|
| 544 | ); |
---|
| 545 | |
---|
[bd4d011] | 546 | FunctionDecl * main_decl = nullptr; |
---|
| 547 | |
---|
| 548 | if( needs_main ) { |
---|
| 549 | FunctionType * main_type = new FunctionType( noQualifiers, false ); |
---|
[bf2438c] | 550 | |
---|
[bd4d011] | 551 | main_type->get_parameters().push_back( this_decl->clone() ); |
---|
| 552 | |
---|
| 553 | main_decl = new FunctionDecl( |
---|
| 554 | "main", |
---|
[ba3706f] | 555 | noStorageClasses, |
---|
[bd4d011] | 556 | LinkageSpec::Cforall, |
---|
| 557 | main_type, |
---|
| 558 | nullptr |
---|
| 559 | ); |
---|
[2db79e5] | 560 | fixupGenerics(main_type, decl); |
---|
[bd4d011] | 561 | } |
---|
| 562 | |
---|
[2db79e5] | 563 | delete this_decl; |
---|
| 564 | |
---|
[2065609] | 565 | declsToAddBefore.push_back( forward ); |
---|
| 566 | if( needs_main ) declsToAddBefore.push_back( main_decl ); |
---|
| 567 | declsToAddBefore.push_back( get_decl ); |
---|
[bcda04c] | 568 | |
---|
| 569 | return get_decl; |
---|
| 570 | } |
---|
| 571 | |
---|
| 572 | ObjectDecl * ConcurrentSueKeyword::addField( StructDecl * decl ) { |
---|
| 573 | ObjectDecl * field = new ObjectDecl( |
---|
| 574 | field_name, |
---|
[ba3706f] | 575 | noStorageClasses, |
---|
[bcda04c] | 576 | LinkageSpec::Cforall, |
---|
| 577 | nullptr, |
---|
| 578 | new StructInstType( |
---|
| 579 | noQualifiers, |
---|
| 580 | type_decl |
---|
| 581 | ), |
---|
| 582 | nullptr |
---|
| 583 | ); |
---|
| 584 | |
---|
| 585 | decl->get_members().push_back( field ); |
---|
| 586 | |
---|
| 587 | return field; |
---|
| 588 | } |
---|
| 589 | |
---|
[2f9a722] | 590 | void ConcurrentSueKeyword::addRoutines( ObjectDecl * field, FunctionDecl * func ) { |
---|
[ba3706f] | 591 | CompoundStmt * statement = new CompoundStmt(); |
---|
[bf2438c] | 592 | statement->push_back( |
---|
[b32ada31] | 593 | new ReturnStmt( |
---|
[e04b636] | 594 | new AddressExpr( |
---|
[bcda04c] | 595 | new MemberExpr( |
---|
| 596 | field, |
---|
[2db79e5] | 597 | new CastExpr( |
---|
| 598 | new VariableExpr( func->get_functionType()->get_parameters().front() ), |
---|
[b81fd95] | 599 | func->get_functionType()->get_parameters().front()->get_type()->stripReferences()->clone(), |
---|
| 600 | false |
---|
[2db79e5] | 601 | ) |
---|
[e04b636] | 602 | ) |
---|
[b32ada31] | 603 | ) |
---|
| 604 | ) |
---|
| 605 | ); |
---|
| 606 | |
---|
[bcda04c] | 607 | FunctionDecl * get_decl = func->clone(); |
---|
| 608 | |
---|
| 609 | get_decl->set_statements( statement ); |
---|
[e04b636] | 610 | |
---|
| 611 | declsToAddAfter.push_back( get_decl ); |
---|
[427854b] | 612 | } |
---|
| 613 | |
---|
| 614 | //============================================================================================= |
---|
| 615 | // Suspend keyword implementation |
---|
| 616 | //============================================================================================= |
---|
| 617 | bool SuspendKeyword::is_real_suspend( FunctionDecl * func ) { |
---|
| 618 | if(isMangled(func->linkage)) return false; // the real suspend isn't mangled |
---|
| 619 | if(func->name != "__cfactx_suspend") return false; // the real suspend has a specific name |
---|
| 620 | if(func->type->parameters.size() != 0) return false; // Too many parameters |
---|
| 621 | if(func->type->returnVals.size() != 0) return false; // Too many return values |
---|
| 622 | |
---|
| 623 | return true; |
---|
[b32ada31] | 624 | } |
---|
| 625 | |
---|
[427854b] | 626 | void SuspendKeyword::premutate( FunctionDecl * func ) { |
---|
| 627 | GuardValue(in_generator); |
---|
| 628 | in_generator = nullptr; |
---|
| 629 | |
---|
| 630 | // Is this the real suspend? |
---|
| 631 | if(is_real_suspend(func)) { |
---|
| 632 | decl_suspend = decl_suspend ? decl_suspend : func; |
---|
| 633 | return; |
---|
| 634 | } |
---|
| 635 | |
---|
| 636 | // Is this the main of a generator? |
---|
[1c01c58] | 637 | auto param = isMainFor( func, AggregateDecl::Aggregate::Generator ); |
---|
[427854b] | 638 | if(!param) return; |
---|
| 639 | |
---|
| 640 | if(func->type->returnVals.size() != 0) SemanticError(func->location, "Generator main must return void"); |
---|
| 641 | |
---|
| 642 | in_generator = param; |
---|
| 643 | GuardValue(labels); |
---|
| 644 | labels.clear(); |
---|
| 645 | } |
---|
| 646 | |
---|
| 647 | DeclarationWithType * SuspendKeyword::postmutate( FunctionDecl * func ) { |
---|
| 648 | if( !func->statements ) return func; // Not the actual definition, don't do anything |
---|
| 649 | if( !in_generator ) return func; // Not in a generator, don't do anything |
---|
| 650 | if( labels.empty() ) return func; // Generator has no states, nothing to do, could throw a warning |
---|
| 651 | |
---|
| 652 | // This is a generator main, we need to add the following code to the top |
---|
| 653 | // static void * __generator_labels[] = {&&s0, &&s1, ...}; |
---|
| 654 | // goto * __generator_labels[gen.__generator_state]; |
---|
| 655 | const auto & loc = func->location; |
---|
| 656 | |
---|
| 657 | const auto first_label = gen.newLabel("generator"); |
---|
| 658 | |
---|
| 659 | // for each label add to declaration |
---|
| 660 | std::list<Initializer*> inits = { new SingleInit( new LabelAddressExpr( first_label ) ) }; |
---|
| 661 | for(const auto & label : labels) { |
---|
| 662 | inits.push_back( |
---|
| 663 | new SingleInit( |
---|
| 664 | new LabelAddressExpr( label ) |
---|
| 665 | ) |
---|
| 666 | ); |
---|
| 667 | } |
---|
| 668 | auto init = new ListInit(std::move(inits), noDesignators, true); |
---|
| 669 | labels.clear(); |
---|
| 670 | |
---|
| 671 | // create decl |
---|
| 672 | auto decl = new ObjectDecl( |
---|
| 673 | "__generator_labels", |
---|
| 674 | Type::StorageClasses( Type::Static ), |
---|
| 675 | LinkageSpec::AutoGen, |
---|
| 676 | nullptr, |
---|
| 677 | new ArrayType( |
---|
| 678 | Type::Qualifiers(), |
---|
| 679 | new PointerType( |
---|
| 680 | Type::Qualifiers(), |
---|
| 681 | new VoidType( Type::Qualifiers() ) |
---|
| 682 | ), |
---|
| 683 | nullptr, |
---|
| 684 | false, false |
---|
| 685 | ), |
---|
| 686 | init |
---|
| 687 | ); |
---|
| 688 | |
---|
| 689 | // create the goto |
---|
| 690 | assert(in_generator); |
---|
| 691 | |
---|
| 692 | auto go_decl = new ObjectDecl( |
---|
| 693 | "__generator_label", |
---|
| 694 | noStorageClasses, |
---|
| 695 | LinkageSpec::AutoGen, |
---|
| 696 | nullptr, |
---|
| 697 | new PointerType( |
---|
| 698 | Type::Qualifiers(), |
---|
| 699 | new VoidType( Type::Qualifiers() ) |
---|
| 700 | ), |
---|
| 701 | new SingleInit( |
---|
| 702 | new UntypedExpr( |
---|
| 703 | new NameExpr("?[?]"), |
---|
| 704 | { |
---|
| 705 | new NameExpr("__generator_labels"), |
---|
| 706 | new UntypedMemberExpr( |
---|
| 707 | new NameExpr("__generator_state"), |
---|
| 708 | new VariableExpr( in_generator ) |
---|
| 709 | ) |
---|
| 710 | } |
---|
| 711 | ) |
---|
| 712 | ) |
---|
| 713 | ); |
---|
| 714 | go_decl->location = loc; |
---|
| 715 | |
---|
| 716 | auto go = new BranchStmt( |
---|
| 717 | new VariableExpr( go_decl ), |
---|
| 718 | BranchStmt::Goto |
---|
| 719 | ); |
---|
| 720 | go->location = loc; |
---|
| 721 | go->computedTarget->location = loc; |
---|
| 722 | |
---|
| 723 | auto noop = new NullStmt({ first_label }); |
---|
| 724 | noop->location = loc; |
---|
| 725 | |
---|
| 726 | // wrap everything in a nice compound |
---|
| 727 | auto body = new CompoundStmt({ |
---|
| 728 | new DeclStmt( decl ), |
---|
| 729 | new DeclStmt( go_decl ), |
---|
| 730 | go, |
---|
| 731 | noop, |
---|
| 732 | func->statements |
---|
| 733 | }); |
---|
| 734 | body->location = loc; |
---|
| 735 | func->statements = body; |
---|
| 736 | |
---|
| 737 | return func; |
---|
| 738 | } |
---|
| 739 | |
---|
| 740 | Statement * SuspendKeyword::postmutate( SuspendStmt * stmt ) { |
---|
| 741 | SuspendStmt::Type type = stmt->type; |
---|
| 742 | if(type == SuspendStmt::None) { |
---|
| 743 | // This suspend has a implicit target, find it |
---|
| 744 | type = in_generator ? SuspendStmt::Generator : SuspendStmt::Coroutine; |
---|
| 745 | } |
---|
| 746 | |
---|
| 747 | // Check that the target makes sense |
---|
| 748 | if(!in_generator && type == SuspendStmt::Generator) SemanticError( stmt->location, "'suspend generator' must be used inside main of generator type."); |
---|
| 749 | |
---|
| 750 | // Act appropriately |
---|
| 751 | switch(type) { |
---|
| 752 | case SuspendStmt::Generator: return make_generator_suspend(stmt); |
---|
| 753 | case SuspendStmt::Coroutine: return make_coroutine_suspend(stmt); |
---|
| 754 | default: abort(); |
---|
| 755 | } |
---|
| 756 | } |
---|
| 757 | |
---|
| 758 | Statement * SuspendKeyword::make_generator_suspend( SuspendStmt * stmt ) { |
---|
| 759 | assert(in_generator); |
---|
| 760 | // Target code is : |
---|
| 761 | // gen.__generator_state = X; |
---|
| 762 | // { THEN } |
---|
| 763 | // return; |
---|
| 764 | // __gen_X:; |
---|
| 765 | |
---|
| 766 | // Save the location and delete the old statement, we only need the location from this point on |
---|
| 767 | auto loc = stmt->location; |
---|
| 768 | |
---|
| 769 | // Build the label and get its index |
---|
| 770 | auto label = make_label(); |
---|
| 771 | |
---|
| 772 | // Create the context saving statement |
---|
| 773 | auto save = new ExprStmt( new UntypedExpr( |
---|
| 774 | new NameExpr( "?=?" ), |
---|
| 775 | { |
---|
| 776 | new UntypedMemberExpr( |
---|
| 777 | new NameExpr("__generator_state"), |
---|
| 778 | new VariableExpr( in_generator ) |
---|
| 779 | ), |
---|
| 780 | new ConstantExpr( |
---|
| 781 | Constant::from_int( label.idx ) |
---|
| 782 | ) |
---|
| 783 | } |
---|
| 784 | )); |
---|
| 785 | assert(save->expr); |
---|
| 786 | save->location = loc; |
---|
| 787 | stmtsToAddBefore.push_back( save ); |
---|
| 788 | |
---|
| 789 | // if we have a then add it here |
---|
| 790 | auto then = stmt->then; |
---|
| 791 | stmt->then = nullptr; |
---|
| 792 | delete stmt; |
---|
| 793 | if(then) stmtsToAddBefore.push_back( then ); |
---|
| 794 | |
---|
| 795 | // Create the return statement |
---|
| 796 | auto ret = new ReturnStmt( nullptr ); |
---|
| 797 | ret->location = loc; |
---|
| 798 | stmtsToAddBefore.push_back( ret ); |
---|
| 799 | |
---|
| 800 | // Create the null statement with the created label |
---|
| 801 | auto noop = new NullStmt({ label.obj }); |
---|
| 802 | noop->location = loc; |
---|
| 803 | |
---|
| 804 | // Return the null statement to take the place of the previous statement |
---|
| 805 | return noop; |
---|
| 806 | } |
---|
| 807 | |
---|
| 808 | Statement * SuspendKeyword::make_coroutine_suspend( SuspendStmt * stmt ) { |
---|
| 809 | if(stmt->then) SemanticError( stmt->location, "Compound statement following coroutines is not implemented."); |
---|
| 810 | |
---|
| 811 | // Save the location and delete the old statement, we only need the location from this point on |
---|
| 812 | auto loc = stmt->location; |
---|
| 813 | delete stmt; |
---|
| 814 | |
---|
| 815 | // Create the call expression |
---|
| 816 | if(!decl_suspend) SemanticError( loc, "suspend keyword applied to coroutines requires coroutines to be in scope, add #include <coroutine.hfa>\n"); |
---|
| 817 | auto expr = new UntypedExpr( VariableExpr::functionPointer( decl_suspend ) ); |
---|
[e6cfa8ff] | 818 | expr->location = loc; |
---|
[427854b] | 819 | |
---|
| 820 | // Change this statement into a regular expr |
---|
| 821 | assert(expr); |
---|
| 822 | auto nstmt = new ExprStmt( expr ); |
---|
[e6cfa8ff] | 823 | nstmt->location = loc; |
---|
[427854b] | 824 | return nstmt; |
---|
| 825 | } |
---|
| 826 | |
---|
| 827 | |
---|
[64adb03] | 828 | //============================================================================================= |
---|
| 829 | // Mutex keyword implementation |
---|
| 830 | //============================================================================================= |
---|
[97e3296] | 831 | |
---|
[2065609] | 832 | void MutexKeyword::postvisit(FunctionDecl* decl) { |
---|
[102a58b] | 833 | |
---|
[db4d8e3] | 834 | bool first = false; |
---|
| 835 | std::list<DeclarationWithType*> mutexArgs = findMutexArgs( decl, first ); |
---|
[ab8c6a6] | 836 | bool const isDtor = CodeGen::isDestructor( decl->name ); |
---|
[64adb03] | 837 | |
---|
[ceedde6] | 838 | // Is this function relevant to monitors |
---|
| 839 | if( mutexArgs.empty() ) { |
---|
| 840 | // If this is the destructor for a monitor it must be mutex |
---|
| 841 | if(isDtor) { |
---|
| 842 | Type* ty = decl->get_functionType()->get_parameters().front()->get_type(); |
---|
| 843 | |
---|
| 844 | // If it's a copy, it's not a mutex |
---|
| 845 | ReferenceType* rty = dynamic_cast< ReferenceType * >( ty ); |
---|
| 846 | if( ! rty ) return; |
---|
| 847 | |
---|
| 848 | // If we are not pointing directly to a type, it's not a mutex |
---|
| 849 | Type* base = rty->get_base(); |
---|
| 850 | if( dynamic_cast< ReferenceType * >( base ) ) return; |
---|
| 851 | if( dynamic_cast< PointerType * >( base ) ) return; |
---|
| 852 | |
---|
| 853 | // Check if its a struct |
---|
| 854 | StructInstType * baseStruct = dynamic_cast< StructInstType * >( base ); |
---|
| 855 | if( !baseStruct ) return; |
---|
| 856 | |
---|
| 857 | // Check if its a monitor |
---|
| 858 | if(baseStruct->baseStruct->is_monitor() || baseStruct->baseStruct->is_thread()) |
---|
| 859 | SemanticError( decl, "destructors for structures declared as \"monitor\" must use mutex parameters\n" ); |
---|
| 860 | } |
---|
| 861 | return; |
---|
| 862 | } |
---|
[549c006] | 863 | |
---|
[ceedde6] | 864 | // Monitors can't be constructed with mutual exclusion |
---|
| 865 | if( CodeGen::isConstructor(decl->name) && !first ) SemanticError( decl, "constructors cannot have mutex parameters" ); |
---|
[549c006] | 866 | |
---|
[ceedde6] | 867 | // It makes no sense to have multiple mutex parameters for the destructor |
---|
[a16764a6] | 868 | if( isDtor && mutexArgs.size() != 1 ) SemanticError( decl, "destructors can only have 1 mutex argument" ); |
---|
[549c006] | 869 | |
---|
[ceedde6] | 870 | // Make sure all the mutex arguments are monitors |
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[64adb03] | 871 | for(auto arg : mutexArgs) { |
---|
| 872 | validate( arg ); |
---|
| 873 | } |
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| 874 | |
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[ceedde6] | 875 | // Check if we need to instrument the body |
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[64adb03] | 876 | CompoundStmt* body = decl->get_statements(); |
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| 877 | if( ! body ) return; |
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| 878 | |
---|
[ceedde6] | 879 | // Do we have the required headers |
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[a16764a6] | 880 | if( !monitor_decl || !guard_decl || !dtor_guard_decl ) |
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[73abe95] | 881 | SemanticError( decl, "mutex keyword requires monitors to be in scope, add #include <monitor.hfa>\n" ); |
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[b32ada31] | 882 | |
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[ceedde6] | 883 | // Instrument the body |
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[ab8c6a6] | 884 | if ( isDtor && isThread( mutexArgs.front() ) ) { |
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| 885 | if( !thread_guard_decl ) { |
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| 886 | SemanticError( decl, "thread destructor requires threads to be in scope, add #include <thread.hfa>\n" ); |
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| 887 | } |
---|
| 888 | addThreadDtorStatements( decl, body, mutexArgs ); |
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| 889 | } |
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| 890 | else if ( isDtor ) { |
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| 891 | addDtorStatements( decl, body, mutexArgs ); |
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[549c006] | 892 | } |
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| 893 | else { |
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[ab8c6a6] | 894 | addStatements( decl, body, mutexArgs ); |
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[549c006] | 895 | } |
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[64adb03] | 896 | } |
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| 897 | |
---|
[2065609] | 898 | void MutexKeyword::postvisit(StructDecl* decl) { |
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[102a58b] | 899 | |
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[ac2b598] | 900 | if( decl->name == "$monitor" && decl->body ) { |
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[9243cc91] | 901 | assert( !monitor_decl ); |
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| 902 | monitor_decl = decl; |
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| 903 | } |
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[88d955f] | 904 | else if( decl->name == "monitor_guard_t" && decl->body ) { |
---|
[ef42b143] | 905 | assert( !guard_decl ); |
---|
| 906 | guard_decl = decl; |
---|
| 907 | } |
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[88d955f] | 908 | else if( decl->name == "monitor_dtor_guard_t" && decl->body ) { |
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[549c006] | 909 | assert( !dtor_guard_decl ); |
---|
| 910 | dtor_guard_decl = decl; |
---|
| 911 | } |
---|
[ab8c6a6] | 912 | else if( decl->name == "thread_dtor_guard_t" && decl->body ) { |
---|
| 913 | assert( !thread_guard_decl ); |
---|
| 914 | thread_guard_decl = decl; |
---|
| 915 | } |
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[9243cc91] | 916 | } |
---|
| 917 | |
---|
[db4d8e3] | 918 | std::list<DeclarationWithType*> MutexKeyword::findMutexArgs( FunctionDecl* decl, bool & first ) { |
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[64adb03] | 919 | std::list<DeclarationWithType*> mutexArgs; |
---|
| 920 | |
---|
[db4d8e3] | 921 | bool once = true; |
---|
[64adb03] | 922 | for( auto arg : decl->get_functionType()->get_parameters()) { |
---|
| 923 | //Find mutex arguments |
---|
| 924 | Type* ty = arg->get_type(); |
---|
[615a096] | 925 | if( ! ty->get_mutex() ) continue; |
---|
[64adb03] | 926 | |
---|
[db4d8e3] | 927 | if(once) {first = true;} |
---|
| 928 | once = false; |
---|
| 929 | |
---|
[64adb03] | 930 | //Append it to the list |
---|
| 931 | mutexArgs.push_back( arg ); |
---|
| 932 | } |
---|
| 933 | |
---|
| 934 | return mutexArgs; |
---|
| 935 | } |
---|
| 936 | |
---|
| 937 | void MutexKeyword::validate( DeclarationWithType * arg ) { |
---|
| 938 | Type* ty = arg->get_type(); |
---|
| 939 | |
---|
| 940 | //Makes sure it's not a copy |
---|
[870d1f0] | 941 | ReferenceType* rty = dynamic_cast< ReferenceType * >( ty ); |
---|
[a16764a6] | 942 | if( ! rty ) SemanticError( arg, "Mutex argument must be of reference type " ); |
---|
[64adb03] | 943 | |
---|
| 944 | //Make sure the we are pointing directly to a type |
---|
[83a071f9] | 945 | Type* base = rty->get_base(); |
---|
[a16764a6] | 946 | if( dynamic_cast< ReferenceType * >( base ) ) SemanticError( arg, "Mutex argument have exactly one level of indirection " ); |
---|
| 947 | if( dynamic_cast< PointerType * >( base ) ) SemanticError( arg, "Mutex argument have exactly one level of indirection " ); |
---|
[64adb03] | 948 | |
---|
| 949 | //Make sure that typed isn't mutex |
---|
[a16764a6] | 950 | if( base->get_mutex() ) SemanticError( arg, "mutex keyword may only appear once per argument " ); |
---|
[64adb03] | 951 | } |
---|
| 952 | |
---|
[ab8c6a6] | 953 | void MutexKeyword::addDtorStatements( FunctionDecl* func, CompoundStmt * body, const std::list<DeclarationWithType * > & args ) { |
---|
[549c006] | 954 | Type * arg_type = args.front()->get_type()->clone(); |
---|
| 955 | arg_type->set_mutex( false ); |
---|
| 956 | |
---|
| 957 | ObjectDecl * monitors = new ObjectDecl( |
---|
| 958 | "__monitor", |
---|
[ba3706f] | 959 | noStorageClasses, |
---|
[549c006] | 960 | LinkageSpec::Cforall, |
---|
| 961 | nullptr, |
---|
| 962 | new PointerType( |
---|
| 963 | noQualifiers, |
---|
| 964 | new StructInstType( |
---|
| 965 | noQualifiers, |
---|
| 966 | monitor_decl |
---|
| 967 | ) |
---|
| 968 | ), |
---|
| 969 | new SingleInit( new UntypedExpr( |
---|
| 970 | new NameExpr( "get_monitor" ), |
---|
[b81fd95] | 971 | { new CastExpr( new VariableExpr( args.front() ), arg_type, false ) } |
---|
[549c006] | 972 | )) |
---|
| 973 | ); |
---|
| 974 | |
---|
| 975 | assert(generic_func); |
---|
| 976 | |
---|
| 977 | //in reverse order : |
---|
[2bf7ef6] | 978 | // monitor_dtor_guard_t __guard = { __monitors, func }; |
---|
[549c006] | 979 | body->push_front( |
---|
[ba3706f] | 980 | new DeclStmt( new ObjectDecl( |
---|
[549c006] | 981 | "__guard", |
---|
[ba3706f] | 982 | noStorageClasses, |
---|
[549c006] | 983 | LinkageSpec::Cforall, |
---|
| 984 | nullptr, |
---|
| 985 | new StructInstType( |
---|
| 986 | noQualifiers, |
---|
| 987 | dtor_guard_decl |
---|
| 988 | ), |
---|
| 989 | new ListInit( |
---|
| 990 | { |
---|
| 991 | new SingleInit( new AddressExpr( new VariableExpr( monitors ) ) ), |
---|
[77a2994] | 992 | new SingleInit( new CastExpr( new VariableExpr( func ), generic_func->clone(), false ) ), |
---|
| 993 | new SingleInit( new ConstantExpr( Constant::from_bool( false ) ) ) |
---|
[549c006] | 994 | }, |
---|
| 995 | noDesignators, |
---|
| 996 | true |
---|
| 997 | ) |
---|
| 998 | )) |
---|
| 999 | ); |
---|
| 1000 | |
---|
[ac2b598] | 1001 | //$monitor * __monitors[] = { get_monitor(a), get_monitor(b) }; |
---|
[ab8c6a6] | 1002 | body->push_front( new DeclStmt( monitors ) ); |
---|
| 1003 | } |
---|
| 1004 | |
---|
| 1005 | void MutexKeyword::addThreadDtorStatements( |
---|
| 1006 | FunctionDecl*, CompoundStmt * body, |
---|
| 1007 | const std::list<DeclarationWithType * > & args ) { |
---|
| 1008 | assert( args.size() == 1 ); |
---|
| 1009 | DeclarationWithType * arg = args.front(); |
---|
| 1010 | Type * arg_type = arg->get_type()->clone(); |
---|
| 1011 | assert( arg_type->get_mutex() ); |
---|
| 1012 | arg_type->set_mutex( false ); |
---|
| 1013 | |
---|
| 1014 | // thread_dtor_guard_t __guard = { this, intptr( 0 ) }; |
---|
| 1015 | body->push_front( |
---|
| 1016 | new DeclStmt( new ObjectDecl( |
---|
| 1017 | "__guard", |
---|
| 1018 | noStorageClasses, |
---|
| 1019 | LinkageSpec::Cforall, |
---|
| 1020 | nullptr, |
---|
| 1021 | new StructInstType( |
---|
| 1022 | noQualifiers, |
---|
| 1023 | thread_guard_decl |
---|
| 1024 | ), |
---|
| 1025 | new ListInit( |
---|
| 1026 | { |
---|
| 1027 | new SingleInit( new CastExpr( new VariableExpr( arg ), arg_type ) ), |
---|
| 1028 | new SingleInit( new UntypedExpr( |
---|
| 1029 | new NameExpr( "intptr" ), { |
---|
| 1030 | new ConstantExpr( Constant::from_int( 0 ) ), |
---|
| 1031 | } |
---|
| 1032 | ) ), |
---|
| 1033 | }, |
---|
| 1034 | noDesignators, |
---|
| 1035 | true |
---|
| 1036 | ) |
---|
| 1037 | )) |
---|
| 1038 | ); |
---|
[549c006] | 1039 | } |
---|
| 1040 | |
---|
[ab8c6a6] | 1041 | void MutexKeyword::addStatements( FunctionDecl* func, CompoundStmt * body, const std::list<DeclarationWithType * > & args ) { |
---|
[9243cc91] | 1042 | ObjectDecl * monitors = new ObjectDecl( |
---|
| 1043 | "__monitors", |
---|
[ba3706f] | 1044 | noStorageClasses, |
---|
[9243cc91] | 1045 | LinkageSpec::Cforall, |
---|
| 1046 | nullptr, |
---|
| 1047 | new ArrayType( |
---|
| 1048 | noQualifiers, |
---|
| 1049 | new PointerType( |
---|
| 1050 | noQualifiers, |
---|
| 1051 | new StructInstType( |
---|
| 1052 | noQualifiers, |
---|
| 1053 | monitor_decl |
---|
| 1054 | ) |
---|
| 1055 | ), |
---|
| 1056 | new ConstantExpr( Constant::from_ulong( args.size() ) ), |
---|
| 1057 | false, |
---|
| 1058 | false |
---|
| 1059 | ), |
---|
| 1060 | new ListInit( |
---|
[bd41764] | 1061 | map_range < std::list<Initializer*> > ( args, [](DeclarationWithType * var ){ |
---|
[cb0e6de] | 1062 | Type * type = var->get_type()->clone(); |
---|
| 1063 | type->set_mutex( false ); |
---|
[9243cc91] | 1064 | return new SingleInit( new UntypedExpr( |
---|
| 1065 | new NameExpr( "get_monitor" ), |
---|
[b81fd95] | 1066 | { new CastExpr( new VariableExpr( var ), type, false ) } |
---|
[9243cc91] | 1067 | ) ); |
---|
| 1068 | }) |
---|
| 1069 | ) |
---|
| 1070 | ); |
---|
| 1071 | |
---|
[97e3296] | 1072 | assert(generic_func); |
---|
| 1073 | |
---|
[2bf7ef6] | 1074 | // in reverse order : |
---|
[97e3296] | 1075 | // monitor_guard_t __guard = { __monitors, #, func }; |
---|
[64adb03] | 1076 | body->push_front( |
---|
[ba3706f] | 1077 | new DeclStmt( new ObjectDecl( |
---|
[64adb03] | 1078 | "__guard", |
---|
[ba3706f] | 1079 | noStorageClasses, |
---|
[64adb03] | 1080 | LinkageSpec::Cforall, |
---|
| 1081 | nullptr, |
---|
| 1082 | new StructInstType( |
---|
| 1083 | noQualifiers, |
---|
[ef42b143] | 1084 | guard_decl |
---|
[64adb03] | 1085 | ), |
---|
| 1086 | new ListInit( |
---|
| 1087 | { |
---|
[9243cc91] | 1088 | new SingleInit( new VariableExpr( monitors ) ), |
---|
[97e3296] | 1089 | new SingleInit( new ConstantExpr( Constant::from_ulong( args.size() ) ) ), |
---|
[b81fd95] | 1090 | new SingleInit( new CastExpr( new VariableExpr( func ), generic_func->clone(), false ) ) |
---|
[ef42b143] | 1091 | }, |
---|
| 1092 | noDesignators, |
---|
| 1093 | true |
---|
[64adb03] | 1094 | ) |
---|
| 1095 | )) |
---|
| 1096 | ); |
---|
| 1097 | |
---|
[ac2b598] | 1098 | //$monitor * __monitors[] = { get_monitor(a), get_monitor(b) }; |
---|
[ba3706f] | 1099 | body->push_front( new DeclStmt( monitors) ); |
---|
[64adb03] | 1100 | } |
---|
[bd4d011] | 1101 | |
---|
| 1102 | //============================================================================================= |
---|
| 1103 | // General entry routine |
---|
| 1104 | //============================================================================================= |
---|
[549c006] | 1105 | void ThreadStarter::previsit( StructDecl * decl ) { |
---|
[ac2b598] | 1106 | if( decl->name == "$thread" && decl->body ) { |
---|
[549c006] | 1107 | assert( !thread_decl ); |
---|
| 1108 | thread_decl = decl; |
---|
| 1109 | } |
---|
| 1110 | } |
---|
| 1111 | |
---|
[2065609] | 1112 | void ThreadStarter::postvisit(FunctionDecl * decl) { |
---|
[9f5ecf5] | 1113 | if( ! CodeGen::isConstructor(decl->name) ) return; |
---|
[bd4d011] | 1114 | |
---|
[549c006] | 1115 | Type * typeof_this = InitTweak::getTypeofThis(decl->type); |
---|
| 1116 | StructInstType * ctored_type = dynamic_cast< StructInstType * >( typeof_this ); |
---|
| 1117 | if( ctored_type && ctored_type->baseStruct == thread_decl ) { |
---|
| 1118 | thread_ctor_seen = true; |
---|
| 1119 | } |
---|
| 1120 | |
---|
[bd4d011] | 1121 | DeclarationWithType * param = decl->get_functionType()->get_parameters().front(); |
---|
[ce8c12f] | 1122 | auto type = dynamic_cast< StructInstType * >( InitTweak::getPointerBase( param->get_type() ) ); |
---|
[bd4d011] | 1123 | if( type && type->get_baseStruct()->is_thread() ) { |
---|
[549c006] | 1124 | if( !thread_decl || !thread_ctor_seen ) { |
---|
[73abe95] | 1125 | SemanticError( type->get_baseStruct()->location, "thread keyword requires threads to be in scope, add #include <thread.hfa>"); |
---|
[549c006] | 1126 | } |
---|
| 1127 | |
---|
[bd4d011] | 1128 | addStartStatement( decl, param ); |
---|
| 1129 | } |
---|
| 1130 | } |
---|
| 1131 | |
---|
| 1132 | void ThreadStarter::addStartStatement( FunctionDecl * decl, DeclarationWithType * param ) { |
---|
| 1133 | CompoundStmt * stmt = decl->get_statements(); |
---|
| 1134 | |
---|
| 1135 | if( ! stmt ) return; |
---|
| 1136 | |
---|
[bf2438c] | 1137 | stmt->push_back( |
---|
[bd4d011] | 1138 | new ExprStmt( |
---|
| 1139 | new UntypedExpr( |
---|
| 1140 | new NameExpr( "__thrd_start" ), |
---|
[09f357ec] | 1141 | { new VariableExpr( param ), new NameExpr("main") } |
---|
[bd4d011] | 1142 | ) |
---|
| 1143 | ) |
---|
| 1144 | ); |
---|
| 1145 | } |
---|
[68fe077a] | 1146 | }; |
---|
[6b0b624] | 1147 | |
---|
| 1148 | // Local Variables: // |
---|
| 1149 | // mode: c // |
---|
| 1150 | // tab-width: 4 // |
---|
| 1151 | // End: // |
---|
[1c01c58] | 1152 | |
---|