[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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[6b0b624] | 13 | // Update Count : 5 |
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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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[bf2438c] | 18 | #include <cassert> // for assert |
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| 19 | #include <string> // for string, operator== |
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| 20 | |
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[bd06384] | 21 | #include "Common/GC.h" // for new_static_root |
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[2065609] | 22 | #include "Common/PassVisitor.h" // for PassVisitor |
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[bf2438c] | 23 | #include "Common/SemanticError.h" // for SemanticError |
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| 24 | #include "Common/utility.h" // for deleteAll, map_range |
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[bff227f] | 25 | #include "CodeGen/OperatorTable.h" // for isConstructor |
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| 26 | #include "InitTweak/InitTweak.h" // for getPointerBase |
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[bf2438c] | 27 | #include "Parser/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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| 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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[9a705dc8] | 56 | ConcurrentSueKeyword( std::string&& type_name, std::string&& field_name, std::string&& getter_name, std::string&& context_error, bool needs_main, KeywordCastExpr::Target cast_target ) : |
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| 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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[bcda04c] | 62 | |
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| 63 | void handle( StructDecl * ); |
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| 64 | FunctionDecl * forwardDeclare( StructDecl * ); |
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| 65 | ObjectDecl * addField( StructDecl * ); |
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[2f9a722] | 66 | void addRoutines( ObjectDecl *, FunctionDecl * ); |
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[bcda04c] | 67 | |
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| 68 | virtual bool is_target( StructDecl * decl ) = 0; |
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| 69 | |
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[9a705dc8] | 70 | Expression * postmutate( KeywordCastExpr * cast ); |
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| 71 | |
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[bcda04c] | 72 | private: |
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| 73 | const std::string type_name; |
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| 74 | const std::string field_name; |
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| 75 | const std::string getter_name; |
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| 76 | const std::string context_error; |
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[bd4d011] | 77 | bool needs_main; |
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[9a705dc8] | 78 | KeywordCastExpr::Target cast_target; |
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[bcda04c] | 79 | |
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| 80 | StructDecl* type_decl = nullptr; |
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| 81 | }; |
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| 82 | |
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| 83 | |
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[64adb03] | 84 | //----------------------------------------------------------------------------- |
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| 85 | //Handles thread type declarations : |
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| 86 | // thread Mythread { struct MyThread { |
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| 87 | // int data; int data; |
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| 88 | // a_struct_t more_data; a_struct_t more_data; |
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| 89 | // => thread_desc __thrd_d; |
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| 90 | // }; }; |
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| 91 | // static inline thread_desc * get_thread( MyThread * this ) { return &this->__thrd_d; } |
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| 92 | // |
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[bcda04c] | 93 | class ThreadKeyword final : public ConcurrentSueKeyword { |
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[64adb03] | 94 | public: |
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| 95 | |
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[bcda04c] | 96 | ThreadKeyword() : ConcurrentSueKeyword( |
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| 97 | "thread_desc", |
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| 98 | "__thrd", |
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| 99 | "get_thread", |
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[bd4d011] | 100 | "thread keyword requires threads to be in scope, add #include <thread>", |
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[9a705dc8] | 101 | true, |
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| 102 | KeywordCastExpr::Thread |
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[bcda04c] | 103 | ) |
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| 104 | {} |
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| 105 | |
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| 106 | virtual ~ThreadKeyword() {} |
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| 107 | |
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| 108 | virtual bool is_target( StructDecl * decl ) override final { return decl->is_thread(); } |
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| 109 | |
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| 110 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 111 | PassVisitor< ThreadKeyword > impl; |
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[9a705dc8] | 112 | mutateAll( translationUnit, impl ); |
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[bcda04c] | 113 | } |
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[64adb03] | 114 | }; |
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| 115 | |
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| 116 | //----------------------------------------------------------------------------- |
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| 117 | //Handles coroutine type declarations : |
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| 118 | // coroutine MyCoroutine { struct MyCoroutine { |
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| 119 | // int data; int data; |
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| 120 | // a_struct_t more_data; a_struct_t more_data; |
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| 121 | // => coroutine_desc __cor_d; |
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| 122 | // }; }; |
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| 123 | // static inline coroutine_desc * get_coroutine( MyCoroutine * this ) { return &this->__cor_d; } |
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| 124 | // |
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[bcda04c] | 125 | class CoroutineKeyword final : public ConcurrentSueKeyword { |
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[64adb03] | 126 | public: |
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| 127 | |
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[bcda04c] | 128 | CoroutineKeyword() : ConcurrentSueKeyword( |
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| 129 | "coroutine_desc", |
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| 130 | "__cor", |
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| 131 | "get_coroutine", |
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[bd4d011] | 132 | "coroutine keyword requires coroutines to be in scope, add #include <coroutine>", |
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[9a705dc8] | 133 | true, |
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| 134 | KeywordCastExpr::Coroutine |
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[bcda04c] | 135 | ) |
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| 136 | {} |
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[b32ada31] | 137 | |
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[bcda04c] | 138 | virtual ~CoroutineKeyword() {} |
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| 139 | |
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| 140 | virtual bool is_target( StructDecl * decl ) override final { return decl->is_coroutine(); } |
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[b32ada31] | 141 | |
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| 142 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 143 | PassVisitor< CoroutineKeyword > impl; |
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[9a705dc8] | 144 | mutateAll( translationUnit, impl ); |
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[b32ada31] | 145 | } |
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[64adb03] | 146 | }; |
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| 147 | |
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| 148 | //----------------------------------------------------------------------------- |
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| 149 | //Handles monitor type declarations : |
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| 150 | // monitor MyMonitor { struct MyMonitor { |
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| 151 | // int data; int data; |
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| 152 | // a_struct_t more_data; a_struct_t more_data; |
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| 153 | // => monitor_desc __mon_d; |
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| 154 | // }; }; |
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| 155 | // static inline monitor_desc * get_coroutine( MyMonitor * this ) { return &this->__cor_d; } |
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| 156 | // |
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[bcda04c] | 157 | class MonitorKeyword final : public ConcurrentSueKeyword { |
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[64adb03] | 158 | public: |
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| 159 | |
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[bcda04c] | 160 | MonitorKeyword() : ConcurrentSueKeyword( |
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| 161 | "monitor_desc", |
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| 162 | "__mon", |
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| 163 | "get_monitor", |
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[bd4d011] | 164 | "monitor keyword requires monitors to be in scope, add #include <monitor>", |
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[9a705dc8] | 165 | false, |
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| 166 | KeywordCastExpr::Monitor |
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[bcda04c] | 167 | ) |
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| 168 | {} |
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| 169 | |
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| 170 | virtual ~MonitorKeyword() {} |
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| 171 | |
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| 172 | virtual bool is_target( StructDecl * decl ) override final { return decl->is_monitor(); } |
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| 173 | |
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| 174 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 175 | PassVisitor< MonitorKeyword > impl; |
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[9a705dc8] | 176 | mutateAll( translationUnit, impl ); |
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[bcda04c] | 177 | } |
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[64adb03] | 178 | }; |
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| 179 | |
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| 180 | //----------------------------------------------------------------------------- |
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| 181 | //Handles mutex routines definitions : |
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| 182 | // void foo( A * mutex a, B * mutex b, int i ) { void foo( A * a, B * b, int i ) { |
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[9243cc91] | 183 | // monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) }; |
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[64adb03] | 184 | // monitor_guard_t __guard = { __monitors, 2 }; |
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| 185 | // /*Some code*/ => /*Some code*/ |
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| 186 | // } } |
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| 187 | // |
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[2065609] | 188 | class MutexKeyword final { |
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[64adb03] | 189 | public: |
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| 190 | |
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[2065609] | 191 | void postvisit( FunctionDecl * decl ); |
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| 192 | void postvisit( StructDecl * decl ); |
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[64adb03] | 193 | |
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| 194 | std::list<DeclarationWithType*> findMutexArgs( FunctionDecl* ); |
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| 195 | void validate( DeclarationWithType * ); |
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[549c006] | 196 | void addDtorStatments( FunctionDecl* func, CompoundStmt *, const std::list<DeclarationWithType * > &); |
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[97e3296] | 197 | void addStatments( FunctionDecl* func, CompoundStmt *, const std::list<DeclarationWithType * > &); |
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[64adb03] | 198 | |
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| 199 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 200 | PassVisitor< MutexKeyword > impl; |
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[64adb03] | 201 | acceptAll( translationUnit, impl ); |
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| 202 | } |
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[9243cc91] | 203 | |
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| 204 | private: |
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| 205 | StructDecl* monitor_decl = nullptr; |
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[ef42b143] | 206 | StructDecl* guard_decl = nullptr; |
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[549c006] | 207 | StructDecl* dtor_guard_decl = nullptr; |
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[97e3296] | 208 | |
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[8d7bef2] | 209 | static Type* generic_func; |
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[64adb03] | 210 | }; |
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| 211 | |
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[bd06384] | 212 | Type* MutexKeyword::generic_func = new_static_root<FunctionType>( noQualifiers, true ); |
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[97e3296] | 213 | |
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[bd4d011] | 214 | //----------------------------------------------------------------------------- |
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| 215 | //Handles mutex routines definitions : |
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| 216 | // void foo( A * mutex a, B * mutex b, int i ) { void foo( A * a, B * b, int i ) { |
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| 217 | // monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) }; |
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| 218 | // monitor_guard_t __guard = { __monitors, 2 }; |
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| 219 | // /*Some code*/ => /*Some code*/ |
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| 220 | // } } |
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| 221 | // |
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[2065609] | 222 | class ThreadStarter final { |
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[bd4d011] | 223 | public: |
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| 224 | |
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[2065609] | 225 | void postvisit( FunctionDecl * decl ); |
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[549c006] | 226 | void previsit ( StructDecl * decl ); |
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[bd4d011] | 227 | |
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| 228 | void addStartStatement( FunctionDecl * decl, DeclarationWithType * param ); |
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| 229 | |
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| 230 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 231 | PassVisitor< ThreadStarter > impl; |
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[bd4d011] | 232 | acceptAll( translationUnit, impl ); |
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| 233 | } |
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[549c006] | 234 | |
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| 235 | private : |
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| 236 | bool thread_ctor_seen = false; |
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| 237 | StructDecl * thread_decl = nullptr; |
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[bd4d011] | 238 | }; |
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| 239 | |
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[64adb03] | 240 | //============================================================================================= |
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| 241 | // General entry routine |
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| 242 | //============================================================================================= |
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| 243 | void applyKeywords( std::list< Declaration * > & translationUnit ) { |
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| 244 | ThreadKeyword ::implement( translationUnit ); |
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| 245 | CoroutineKeyword ::implement( translationUnit ); |
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| 246 | MonitorKeyword ::implement( translationUnit ); |
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[bcda04c] | 247 | } |
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| 248 | |
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| 249 | void implementMutexFuncs( std::list< Declaration * > & translationUnit ) { |
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[64adb03] | 250 | MutexKeyword ::implement( translationUnit ); |
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| 251 | } |
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| 252 | |
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[bcda04c] | 253 | void implementThreadStarter( std::list< Declaration * > & translationUnit ) { |
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[bd4d011] | 254 | ThreadStarter ::implement( translationUnit ); |
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[bcda04c] | 255 | } |
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| 256 | |
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[b32ada31] | 257 | //============================================================================================= |
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[bcda04c] | 258 | // Generic keyword implementation |
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[b32ada31] | 259 | //============================================================================================= |
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[2db79e5] | 260 | void fixupGenerics(FunctionType * func, StructDecl * decl) { |
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| 261 | cloneAll(decl->parameters, func->forall); |
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| 262 | for ( TypeDecl * td : func->forall ) { |
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| 263 | strict_dynamic_cast<StructInstType*>( |
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| 264 | func->parameters.front()->get_type()->stripReferences() |
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| 265 | )->parameters.push_back( |
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| 266 | new TypeExpr( new TypeInstType( noQualifiers, td->name, td ) ) |
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| 267 | ); |
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| 268 | } |
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| 269 | } |
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| 270 | |
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[9a705dc8] | 271 | Declaration * ConcurrentSueKeyword::postmutate(StructDecl * decl) { |
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[9f5ecf5] | 272 | if( decl->name == type_name && decl->body ) { |
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[bcda04c] | 273 | assert( !type_decl ); |
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| 274 | type_decl = decl; |
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[b32ada31] | 275 | } |
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[bcda04c] | 276 | else if ( is_target(decl) ) { |
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[b32ada31] | 277 | handle( decl ); |
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| 278 | } |
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[9a705dc8] | 279 | return decl; |
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[b32ada31] | 280 | } |
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| 281 | |
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[9a705dc8] | 282 | Expression * ConcurrentSueKeyword::postmutate( KeywordCastExpr * cast ) { |
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| 283 | if ( cast_target == cast->target ) { |
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| 284 | // convert (thread &)t to (thread_desc &)*get_thread(t), etc. |
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| 285 | if( !type_decl ) SemanticError( cast, context_error ); |
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| 286 | return new CastExpr( |
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| 287 | UntypedExpr::createDeref( |
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[42107b4] | 288 | new UntypedExpr( new NameExpr( getter_name ), { cast->arg } ) |
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[9a705dc8] | 289 | ), |
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| 290 | new ReferenceType( |
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| 291 | noQualifiers, |
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| 292 | new StructInstType( noQualifiers, type_decl ) ) |
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| 293 | ); |
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| 294 | } |
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| 295 | return cast; |
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| 296 | } |
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| 297 | |
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| 298 | |
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[bcda04c] | 299 | void ConcurrentSueKeyword::handle( StructDecl * decl ) { |
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[9f5ecf5] | 300 | if( ! decl->body ) return; |
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[b32ada31] | 301 | |
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[a16764a6] | 302 | if( !type_decl ) SemanticError( decl, context_error ); |
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[b32ada31] | 303 | |
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[bcda04c] | 304 | FunctionDecl * func = forwardDeclare( decl ); |
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| 305 | ObjectDecl * field = addField( decl ); |
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[2f9a722] | 306 | addRoutines( field, func ); |
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[b32ada31] | 307 | } |
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| 308 | |
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[bcda04c] | 309 | FunctionDecl * ConcurrentSueKeyword::forwardDeclare( StructDecl * decl ) { |
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| 310 | |
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| 311 | StructDecl * forward = decl->clone(); |
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| 312 | forward->set_body( false ); |
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| 313 | forward->get_members().clear(); |
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| 314 | |
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[bd4d011] | 315 | FunctionType * get_type = new FunctionType( noQualifiers, false ); |
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[bcda04c] | 316 | ObjectDecl * this_decl = new ObjectDecl( |
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| 317 | "this", |
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[ba3706f] | 318 | noStorageClasses, |
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[b32ada31] | 319 | LinkageSpec::Cforall, |
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| 320 | nullptr, |
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[83a071f9] | 321 | new ReferenceType( |
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[b32ada31] | 322 | noQualifiers, |
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[bcda04c] | 323 | new StructInstType( |
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| 324 | noQualifiers, |
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| 325 | decl |
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| 326 | ) |
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[b32ada31] | 327 | ), |
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| 328 | nullptr |
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| 329 | ); |
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| 330 | |
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[2db79e5] | 331 | get_type->get_parameters().push_back( this_decl->clone() ); |
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[bd4d011] | 332 | get_type->get_returnVals().push_back( |
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[e04b636] | 333 | new ObjectDecl( |
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| 334 | "ret", |
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[ba3706f] | 335 | noStorageClasses, |
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[e04b636] | 336 | LinkageSpec::Cforall, |
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| 337 | nullptr, |
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| 338 | new PointerType( |
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| 339 | noQualifiers, |
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| 340 | new StructInstType( |
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| 341 | noQualifiers, |
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[bcda04c] | 342 | type_decl |
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[e04b636] | 343 | ) |
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| 344 | ), |
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| 345 | nullptr |
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| 346 | ) |
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| 347 | ); |
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[2db79e5] | 348 | fixupGenerics(get_type, decl); |
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[b32ada31] | 349 | |
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[bcda04c] | 350 | FunctionDecl * get_decl = new FunctionDecl( |
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| 351 | getter_name, |
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| 352 | Type::Static, |
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| 353 | LinkageSpec::Cforall, |
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[bd4d011] | 354 | get_type, |
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[bcda04c] | 355 | nullptr, |
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| 356 | noAttributes, |
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| 357 | Type::Inline |
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| 358 | ); |
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| 359 | |
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[bd4d011] | 360 | FunctionDecl * main_decl = nullptr; |
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| 361 | |
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| 362 | if( needs_main ) { |
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| 363 | FunctionType * main_type = new FunctionType( noQualifiers, false ); |
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[bf2438c] | 364 | |
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[bd4d011] | 365 | main_type->get_parameters().push_back( this_decl->clone() ); |
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| 366 | |
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| 367 | main_decl = new FunctionDecl( |
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| 368 | "main", |
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[ba3706f] | 369 | noStorageClasses, |
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[bd4d011] | 370 | LinkageSpec::Cforall, |
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| 371 | main_type, |
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| 372 | nullptr |
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| 373 | ); |
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[2db79e5] | 374 | fixupGenerics(main_type, decl); |
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[bd4d011] | 375 | } |
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| 376 | |
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[2065609] | 377 | declsToAddBefore.push_back( forward ); |
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| 378 | if( needs_main ) declsToAddBefore.push_back( main_decl ); |
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| 379 | declsToAddBefore.push_back( get_decl ); |
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[bcda04c] | 380 | |
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| 381 | return get_decl; |
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| 382 | } |
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| 383 | |
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| 384 | ObjectDecl * ConcurrentSueKeyword::addField( StructDecl * decl ) { |
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| 385 | ObjectDecl * field = new ObjectDecl( |
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| 386 | field_name, |
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[ba3706f] | 387 | noStorageClasses, |
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[bcda04c] | 388 | LinkageSpec::Cforall, |
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| 389 | nullptr, |
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| 390 | new StructInstType( |
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| 391 | noQualifiers, |
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| 392 | type_decl |
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| 393 | ), |
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| 394 | nullptr |
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| 395 | ); |
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| 396 | |
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| 397 | decl->get_members().push_back( field ); |
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| 398 | |
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| 399 | return field; |
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| 400 | } |
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| 401 | |
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[2f9a722] | 402 | void ConcurrentSueKeyword::addRoutines( ObjectDecl * field, FunctionDecl * func ) { |
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[ba3706f] | 403 | CompoundStmt * statement = new CompoundStmt(); |
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[bf2438c] | 404 | statement->push_back( |
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[b32ada31] | 405 | new ReturnStmt( |
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[e04b636] | 406 | new AddressExpr( |
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[bcda04c] | 407 | new MemberExpr( |
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| 408 | field, |
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[2db79e5] | 409 | new CastExpr( |
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| 410 | new VariableExpr( func->get_functionType()->get_parameters().front() ), |
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| 411 | func->get_functionType()->get_parameters().front()->get_type()->stripReferences()->clone() |
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| 412 | ) |
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[e04b636] | 413 | ) |
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[b32ada31] | 414 | ) |
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| 415 | ) |
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| 416 | ); |
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| 417 | |
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[bcda04c] | 418 | FunctionDecl * get_decl = func->clone(); |
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| 419 | |
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| 420 | get_decl->set_statements( statement ); |
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[e04b636] | 421 | |
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| 422 | declsToAddAfter.push_back( get_decl ); |
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| 423 | |
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[bcda04c] | 424 | // get_decl->fixUniqueId(); |
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[b32ada31] | 425 | } |
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| 426 | |
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[64adb03] | 427 | //============================================================================================= |
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| 428 | // Mutex keyword implementation |
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| 429 | //============================================================================================= |
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[97e3296] | 430 | |
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[2065609] | 431 | void MutexKeyword::postvisit(FunctionDecl* decl) { |
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[102a58b] | 432 | |
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[64adb03] | 433 | std::list<DeclarationWithType*> mutexArgs = findMutexArgs( decl ); |
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| 434 | if( mutexArgs.empty() ) return; |
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| 435 | |
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[a16764a6] | 436 | if( CodeGen::isConstructor(decl->name) ) SemanticError( decl, "constructors cannot have mutex parameters" ); |
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[549c006] | 437 | |
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| 438 | bool isDtor = CodeGen::isDestructor( decl->name ); |
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| 439 | |
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[a16764a6] | 440 | if( isDtor && mutexArgs.size() != 1 ) SemanticError( decl, "destructors can only have 1 mutex argument" ); |
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[549c006] | 441 | |
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[64adb03] | 442 | for(auto arg : mutexArgs) { |
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| 443 | validate( arg ); |
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| 444 | } |
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| 445 | |
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| 446 | CompoundStmt* body = decl->get_statements(); |
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| 447 | if( ! body ) return; |
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| 448 | |
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[a16764a6] | 449 | if( !monitor_decl || !guard_decl || !dtor_guard_decl ) |
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| 450 | SemanticError( decl, "mutex keyword requires monitors to be in scope, add #include <monitor>" ); |
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[b32ada31] | 451 | |
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[549c006] | 452 | if( isDtor ) { |
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| 453 | addDtorStatments( decl, body, mutexArgs ); |
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| 454 | } |
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| 455 | else { |
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| 456 | addStatments( decl, body, mutexArgs ); |
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| 457 | } |
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[64adb03] | 458 | } |
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| 459 | |
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[2065609] | 460 | void MutexKeyword::postvisit(StructDecl* decl) { |
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[102a58b] | 461 | |
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[9f5ecf5] | 462 | if( decl->name == "monitor_desc" ) { |
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[9243cc91] | 463 | assert( !monitor_decl ); |
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| 464 | monitor_decl = decl; |
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| 465 | } |
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[9f5ecf5] | 466 | else if( decl->name == "monitor_guard_t" ) { |
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[ef42b143] | 467 | assert( !guard_decl ); |
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| 468 | guard_decl = decl; |
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| 469 | } |
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[549c006] | 470 | else if( decl->name == "monitor_dtor_guard_t" ) { |
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| 471 | assert( !dtor_guard_decl ); |
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| 472 | dtor_guard_decl = decl; |
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| 473 | } |
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[9243cc91] | 474 | } |
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| 475 | |
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[64adb03] | 476 | std::list<DeclarationWithType*> MutexKeyword::findMutexArgs( FunctionDecl* decl ) { |
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| 477 | std::list<DeclarationWithType*> mutexArgs; |
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| 478 | |
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| 479 | for( auto arg : decl->get_functionType()->get_parameters()) { |
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| 480 | //Find mutex arguments |
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| 481 | Type* ty = arg->get_type(); |
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[615a096] | 482 | if( ! ty->get_mutex() ) continue; |
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[64adb03] | 483 | |
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| 484 | //Append it to the list |
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| 485 | mutexArgs.push_back( arg ); |
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| 486 | } |
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| 487 | |
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| 488 | return mutexArgs; |
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| 489 | } |
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| 490 | |
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| 491 | void MutexKeyword::validate( DeclarationWithType * arg ) { |
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| 492 | Type* ty = arg->get_type(); |
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| 493 | |
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| 494 | //Makes sure it's not a copy |
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[870d1f0] | 495 | ReferenceType* rty = dynamic_cast< ReferenceType * >( ty ); |
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[a16764a6] | 496 | if( ! rty ) SemanticError( arg, "Mutex argument must be of reference type " ); |
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[64adb03] | 497 | |
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| 498 | //Make sure the we are pointing directly to a type |
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[83a071f9] | 499 | Type* base = rty->get_base(); |
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[a16764a6] | 500 | if( dynamic_cast< ReferenceType * >( base ) ) SemanticError( arg, "Mutex argument have exactly one level of indirection " ); |
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| 501 | if( dynamic_cast< PointerType * >( base ) ) SemanticError( arg, "Mutex argument have exactly one level of indirection " ); |
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[64adb03] | 502 | |
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| 503 | //Make sure that typed isn't mutex |
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[a16764a6] | 504 | if( base->get_mutex() ) SemanticError( arg, "mutex keyword may only appear once per argument " ); |
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[64adb03] | 505 | } |
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| 506 | |
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[549c006] | 507 | void MutexKeyword::addDtorStatments( FunctionDecl* func, CompoundStmt * body, const std::list<DeclarationWithType * > & args ) { |
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| 508 | Type * arg_type = args.front()->get_type()->clone(); |
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| 509 | arg_type->set_mutex( false ); |
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| 510 | |
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| 511 | ObjectDecl * monitors = new ObjectDecl( |
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| 512 | "__monitor", |
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[ba3706f] | 513 | noStorageClasses, |
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[549c006] | 514 | LinkageSpec::Cforall, |
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| 515 | nullptr, |
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| 516 | new PointerType( |
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| 517 | noQualifiers, |
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| 518 | new StructInstType( |
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| 519 | noQualifiers, |
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| 520 | monitor_decl |
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| 521 | ) |
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| 522 | ), |
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| 523 | new SingleInit( new UntypedExpr( |
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| 524 | new NameExpr( "get_monitor" ), |
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| 525 | { new CastExpr( new VariableExpr( args.front() ), arg_type ) } |
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| 526 | )) |
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| 527 | ); |
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| 528 | |
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| 529 | assert(generic_func); |
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| 530 | |
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| 531 | //in reverse order : |
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| 532 | // monitor_guard_t __guard = { __monitors, #, func }; |
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| 533 | body->push_front( |
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[ba3706f] | 534 | new DeclStmt( new ObjectDecl( |
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[549c006] | 535 | "__guard", |
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[ba3706f] | 536 | noStorageClasses, |
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[549c006] | 537 | LinkageSpec::Cforall, |
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| 538 | nullptr, |
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| 539 | new StructInstType( |
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| 540 | noQualifiers, |
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| 541 | dtor_guard_decl |
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| 542 | ), |
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| 543 | new ListInit( |
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| 544 | { |
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| 545 | new SingleInit( new AddressExpr( new VariableExpr( monitors ) ) ), |
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| 546 | new SingleInit( new CastExpr( new VariableExpr( func ), generic_func->clone() ) ) |
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| 547 | }, |
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| 548 | noDesignators, |
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| 549 | true |
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| 550 | ) |
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| 551 | )) |
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| 552 | ); |
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| 553 | |
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| 554 | //monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) }; |
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[ba3706f] | 555 | body->push_front( new DeclStmt( monitors) ); |
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[549c006] | 556 | } |
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| 557 | |
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[97e3296] | 558 | void MutexKeyword::addStatments( FunctionDecl* func, CompoundStmt * body, const std::list<DeclarationWithType * > & args ) { |
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[9243cc91] | 559 | ObjectDecl * monitors = new ObjectDecl( |
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| 560 | "__monitors", |
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[ba3706f] | 561 | noStorageClasses, |
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[9243cc91] | 562 | LinkageSpec::Cforall, |
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| 563 | nullptr, |
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| 564 | new ArrayType( |
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| 565 | noQualifiers, |
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| 566 | new PointerType( |
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| 567 | noQualifiers, |
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| 568 | new StructInstType( |
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| 569 | noQualifiers, |
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| 570 | monitor_decl |
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| 571 | ) |
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| 572 | ), |
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| 573 | new ConstantExpr( Constant::from_ulong( args.size() ) ), |
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| 574 | false, |
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| 575 | false |
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| 576 | ), |
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| 577 | new ListInit( |
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[bd41764] | 578 | map_range < std::list<Initializer*> > ( args, [](DeclarationWithType * var ){ |
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[cb0e6de] | 579 | Type * type = var->get_type()->clone(); |
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| 580 | type->set_mutex( false ); |
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[9243cc91] | 581 | return new SingleInit( new UntypedExpr( |
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| 582 | new NameExpr( "get_monitor" ), |
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[cb0e6de] | 583 | { new CastExpr( new VariableExpr( var ), type ) } |
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[9243cc91] | 584 | ) ); |
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| 585 | }) |
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| 586 | ) |
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| 587 | ); |
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| 588 | |
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[97e3296] | 589 | assert(generic_func); |
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| 590 | |
---|
[64adb03] | 591 | //in reverse order : |
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[97e3296] | 592 | // monitor_guard_t __guard = { __monitors, #, func }; |
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[64adb03] | 593 | body->push_front( |
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[ba3706f] | 594 | new DeclStmt( new ObjectDecl( |
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[64adb03] | 595 | "__guard", |
---|
[ba3706f] | 596 | noStorageClasses, |
---|
[64adb03] | 597 | LinkageSpec::Cforall, |
---|
| 598 | nullptr, |
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| 599 | new StructInstType( |
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| 600 | noQualifiers, |
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[ef42b143] | 601 | guard_decl |
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[64adb03] | 602 | ), |
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| 603 | new ListInit( |
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| 604 | { |
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[9243cc91] | 605 | new SingleInit( new VariableExpr( monitors ) ), |
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[97e3296] | 606 | new SingleInit( new ConstantExpr( Constant::from_ulong( args.size() ) ) ), |
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| 607 | new SingleInit( new CastExpr( new VariableExpr( func ), generic_func->clone() ) ) |
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[ef42b143] | 608 | }, |
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| 609 | noDesignators, |
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| 610 | true |
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[64adb03] | 611 | ) |
---|
| 612 | )) |
---|
| 613 | ); |
---|
| 614 | |
---|
[ef42b143] | 615 | //monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) }; |
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[ba3706f] | 616 | body->push_front( new DeclStmt( monitors) ); |
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[64adb03] | 617 | } |
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[bd4d011] | 618 | |
---|
| 619 | //============================================================================================= |
---|
| 620 | // General entry routine |
---|
| 621 | //============================================================================================= |
---|
[549c006] | 622 | void ThreadStarter::previsit( StructDecl * decl ) { |
---|
| 623 | if( decl->name == "thread_desc" && decl->body ) { |
---|
| 624 | assert( !thread_decl ); |
---|
| 625 | thread_decl = decl; |
---|
| 626 | } |
---|
| 627 | } |
---|
| 628 | |
---|
[2065609] | 629 | void ThreadStarter::postvisit(FunctionDecl * decl) { |
---|
[9f5ecf5] | 630 | if( ! CodeGen::isConstructor(decl->name) ) return; |
---|
[bd4d011] | 631 | |
---|
[549c006] | 632 | Type * typeof_this = InitTweak::getTypeofThis(decl->type); |
---|
| 633 | StructInstType * ctored_type = dynamic_cast< StructInstType * >( typeof_this ); |
---|
| 634 | if( ctored_type && ctored_type->baseStruct == thread_decl ) { |
---|
| 635 | thread_ctor_seen = true; |
---|
| 636 | } |
---|
| 637 | |
---|
[bd4d011] | 638 | DeclarationWithType * param = decl->get_functionType()->get_parameters().front(); |
---|
[ce8c12f] | 639 | auto type = dynamic_cast< StructInstType * >( InitTweak::getPointerBase( param->get_type() ) ); |
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[bd4d011] | 640 | if( type && type->get_baseStruct()->is_thread() ) { |
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[549c006] | 641 | if( !thread_decl || !thread_ctor_seen ) { |
---|
[a16764a6] | 642 | SemanticError( type->get_baseStruct()->location, "thread keyword requires threads to be in scope, add #include <thread>"); |
---|
[549c006] | 643 | } |
---|
| 644 | |
---|
[bd4d011] | 645 | addStartStatement( decl, param ); |
---|
| 646 | } |
---|
| 647 | } |
---|
| 648 | |
---|
| 649 | void ThreadStarter::addStartStatement( FunctionDecl * decl, DeclarationWithType * param ) { |
---|
| 650 | CompoundStmt * stmt = decl->get_statements(); |
---|
| 651 | |
---|
| 652 | if( ! stmt ) return; |
---|
| 653 | |
---|
[bf2438c] | 654 | stmt->push_back( |
---|
[bd4d011] | 655 | new ExprStmt( |
---|
| 656 | new UntypedExpr( |
---|
| 657 | new NameExpr( "__thrd_start" ), |
---|
| 658 | { new VariableExpr( param ) } |
---|
| 659 | ) |
---|
| 660 | ) |
---|
| 661 | ); |
---|
| 662 | } |
---|
[68fe077a] | 663 | }; |
---|
[6b0b624] | 664 | |
---|
| 665 | // Local Variables: // |
---|
| 666 | // mode: c // |
---|
| 667 | // tab-width: 4 // |
---|
| 668 | // End: // |
---|