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