source: src/Concurrency/Keywords.cc@ 481115f

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors deferred_resn demangler enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new with_gc
Last change on this file since 481115f was bd41764, checked in by Thierry Delisle <tdelisle@…>, 8 years ago

Fixed new clang-6.0 warnings
  • Property mode set to 100644
File size: 19.8 KB
RevLine 
[64adb03]1//
2// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// Keywords.cc --
8//
9// Author : Thierry Delisle
10// Created On : Mon Mar 13 12:41:22 2017
11// Last Modified By :
12// Last Modified On :
[6b0b624]13// Update Count : 5
[64adb03]14//
15
16#include "Concurrency/Keywords.h"
17
[bf2438c]18#include <cassert> // for assert
19#include <string> // for string, operator==
20
[2065609]21#include "Common/PassVisitor.h" // for PassVisitor
[bf2438c]22#include "Common/SemanticError.h" // for SemanticError
23#include "Common/utility.h" // for deleteAll, map_range
[bff227f]24#include "CodeGen/OperatorTable.h" // for isConstructor
25#include "InitTweak/InitTweak.h" // for getPointerBase
[bf2438c]26#include "Parser/LinkageSpec.h" // for Cforall
27#include "SymTab/AddVisit.h" // for acceptAndAdd
28#include "SynTree/Constant.h" // for Constant
29#include "SynTree/Declaration.h" // for StructDecl, FunctionDecl, ObjectDecl
30#include "SynTree/Expression.h" // for VariableExpr, ConstantExpr, Untype...
31#include "SynTree/Initializer.h" // for SingleInit, ListInit, Initializer ...
32#include "SynTree/Label.h" // for Label
33#include "SynTree/Statement.h" // for CompoundStmt, DeclStmt, ExprStmt
34#include "SynTree/Type.h" // for StructInstType, Type, PointerType
35#include "SynTree/Visitor.h" // for Visitor, acceptAll
36
37class Attribute;
[64adb03]38
39namespace Concurrency {
40
41 namespace {
42 const std::list<Label> noLabels;
[b32ada31]43 const std::list< Attribute * > noAttributes;
[68fe077a]44 Type::StorageClasses noStorage;
[64adb03]45 Type::Qualifiers noQualifiers;
46 }
47
48 //=============================================================================================
[2065609]49 // Pass declarations
[64adb03]50 //=============================================================================================
51
[bcda04c]52 //-----------------------------------------------------------------------------
53 //Handles sue type declarations :
54 // sue MyType { struct MyType {
55 // int data; int data;
56 // a_struct_t more_data; a_struct_t more_data;
57 // => NewField_t newField;
58 // }; };
59 // static inline NewField_t * getter_name( MyType * this ) { return &this->newField; }
60 //
[2065609]61 class ConcurrentSueKeyword : public WithDeclsToAdd {
[bcda04c]62 public:
63
[bd4d011]64 ConcurrentSueKeyword( std::string&& type_name, std::string&& field_name, std::string&& getter_name, std::string&& context_error, bool needs_main ) :
65 type_name( type_name ), field_name( field_name ), getter_name( getter_name ), context_error( context_error ), needs_main( needs_main ) {}
[bcda04c]66
67 virtual ~ConcurrentSueKeyword() {}
68
[2065609]69 void postvisit( StructDecl * decl );
[bcda04c]70
71 void handle( StructDecl * );
72 FunctionDecl * forwardDeclare( StructDecl * );
73 ObjectDecl * addField( StructDecl * );
[2f9a722]74 void addRoutines( ObjectDecl *, FunctionDecl * );
[bcda04c]75
76 virtual bool is_target( StructDecl * decl ) = 0;
77
78 private:
79 const std::string type_name;
80 const std::string field_name;
81 const std::string getter_name;
82 const std::string context_error;
[bd4d011]83 bool needs_main;
[bcda04c]84
85 StructDecl* type_decl = nullptr;
86 };
87
88
[64adb03]89 //-----------------------------------------------------------------------------
90 //Handles thread type declarations :
91 // thread Mythread { struct MyThread {
92 // int data; int data;
93 // a_struct_t more_data; a_struct_t more_data;
94 // => thread_desc __thrd_d;
95 // }; };
96 // static inline thread_desc * get_thread( MyThread * this ) { return &this->__thrd_d; }
97 //
[bcda04c]98 class ThreadKeyword final : public ConcurrentSueKeyword {
[64adb03]99 public:
100
[bcda04c]101 ThreadKeyword() : ConcurrentSueKeyword(
102 "thread_desc",
103 "__thrd",
104 "get_thread",
[bd4d011]105 "thread keyword requires threads to be in scope, add #include <thread>",
106 true
[bcda04c]107 )
108 {}
109
110 virtual ~ThreadKeyword() {}
111
112 virtual bool is_target( StructDecl * decl ) override final { return decl->is_thread(); }
113
114 static void implement( std::list< Declaration * > & translationUnit ) {
[2065609]115 PassVisitor< ThreadKeyword > impl;
116 acceptAll( translationUnit, impl );
[bcda04c]117 }
[64adb03]118 };
119
120 //-----------------------------------------------------------------------------
121 //Handles coroutine type declarations :
122 // coroutine MyCoroutine { struct MyCoroutine {
123 // int data; int data;
124 // a_struct_t more_data; a_struct_t more_data;
125 // => coroutine_desc __cor_d;
126 // }; };
127 // static inline coroutine_desc * get_coroutine( MyCoroutine * this ) { return &this->__cor_d; }
128 //
[bcda04c]129 class CoroutineKeyword final : public ConcurrentSueKeyword {
[64adb03]130 public:
131
[bcda04c]132 CoroutineKeyword() : ConcurrentSueKeyword(
133 "coroutine_desc",
134 "__cor",
135 "get_coroutine",
[bd4d011]136 "coroutine keyword requires coroutines to be in scope, add #include <coroutine>",
137 true
[bcda04c]138 )
139 {}
[b32ada31]140
[bcda04c]141 virtual ~CoroutineKeyword() {}
142
143 virtual bool is_target( StructDecl * decl ) override final { return decl->is_coroutine(); }
[b32ada31]144
145 static void implement( std::list< Declaration * > & translationUnit ) {
[2065609]146 PassVisitor< CoroutineKeyword > impl;
147 acceptAll( translationUnit, impl );
[b32ada31]148 }
[64adb03]149 };
150
151 //-----------------------------------------------------------------------------
152 //Handles monitor type declarations :
153 // monitor MyMonitor { struct MyMonitor {
154 // int data; int data;
155 // a_struct_t more_data; a_struct_t more_data;
156 // => monitor_desc __mon_d;
157 // }; };
158 // static inline monitor_desc * get_coroutine( MyMonitor * this ) { return &this->__cor_d; }
159 //
[bcda04c]160 class MonitorKeyword final : public ConcurrentSueKeyword {
[64adb03]161 public:
162
[bcda04c]163 MonitorKeyword() : ConcurrentSueKeyword(
164 "monitor_desc",
165 "__mon",
166 "get_monitor",
[bd4d011]167 "monitor keyword requires monitors to be in scope, add #include <monitor>",
168 false
[bcda04c]169 )
170 {}
171
172 virtual ~MonitorKeyword() {}
173
174 virtual bool is_target( StructDecl * decl ) override final { return decl->is_monitor(); }
175
176 static void implement( std::list< Declaration * > & translationUnit ) {
[2065609]177 PassVisitor< MonitorKeyword > impl;
178 acceptAll( translationUnit, impl );
[bcda04c]179 }
[64adb03]180 };
181
182 //-----------------------------------------------------------------------------
183 //Handles mutex routines definitions :
184 // void foo( A * mutex a, B * mutex b, int i ) { void foo( A * a, B * b, int i ) {
[9243cc91]185 // monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) };
[64adb03]186 // monitor_guard_t __guard = { __monitors, 2 };
187 // /*Some code*/ => /*Some code*/
188 // } }
189 //
[2065609]190 class MutexKeyword final {
[64adb03]191 public:
192
[2065609]193 void postvisit( FunctionDecl * decl );
194 void postvisit( StructDecl * decl );
[64adb03]195
196 std::list<DeclarationWithType*> findMutexArgs( FunctionDecl* );
197 void validate( DeclarationWithType * );
[549c006]198 void addDtorStatments( FunctionDecl* func, CompoundStmt *, const std::list<DeclarationWithType * > &);
[97e3296]199 void addStatments( FunctionDecl* func, CompoundStmt *, const std::list<DeclarationWithType * > &);
[64adb03]200
201 static void implement( std::list< Declaration * > & translationUnit ) {
[2065609]202 PassVisitor< MutexKeyword > impl;
[64adb03]203 acceptAll( translationUnit, impl );
204 }
[9243cc91]205
206 private:
207 StructDecl* monitor_decl = nullptr;
[ef42b143]208 StructDecl* guard_decl = nullptr;
[549c006]209 StructDecl* dtor_guard_decl = nullptr;
[97e3296]210
211 static std::unique_ptr< Type > generic_func;
[64adb03]212 };
213
[97e3296]214 std::unique_ptr< Type > MutexKeyword::generic_func = std::unique_ptr< Type >(
215 new FunctionType(
216 noQualifiers,
217 true
218 )
219 );
220
[bd4d011]221 //-----------------------------------------------------------------------------
222 //Handles mutex routines definitions :
223 // void foo( A * mutex a, B * mutex b, int i ) { void foo( A * a, B * b, int i ) {
224 // monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) };
225 // monitor_guard_t __guard = { __monitors, 2 };
226 // /*Some code*/ => /*Some code*/
227 // } }
228 //
[2065609]229 class ThreadStarter final {
[bd4d011]230 public:
231
[2065609]232 void postvisit( FunctionDecl * decl );
[549c006]233 void previsit ( StructDecl * decl );
[bd4d011]234
235 void addStartStatement( FunctionDecl * decl, DeclarationWithType * param );
236
237 static void implement( std::list< Declaration * > & translationUnit ) {
[2065609]238 PassVisitor< ThreadStarter > impl;
[bd4d011]239 acceptAll( translationUnit, impl );
240 }
[549c006]241
242 private :
243 bool thread_ctor_seen = false;
244 StructDecl * thread_decl = nullptr;
[bd4d011]245 };
246
[64adb03]247 //=============================================================================================
248 // General entry routine
249 //=============================================================================================
250 void applyKeywords( std::list< Declaration * > & translationUnit ) {
251 ThreadKeyword ::implement( translationUnit );
252 CoroutineKeyword ::implement( translationUnit );
253 MonitorKeyword ::implement( translationUnit );
[bcda04c]254 }
255
256 void implementMutexFuncs( std::list< Declaration * > & translationUnit ) {
[64adb03]257 MutexKeyword ::implement( translationUnit );
258 }
259
[bcda04c]260 void implementThreadStarter( std::list< Declaration * > & translationUnit ) {
[bd4d011]261 ThreadStarter ::implement( translationUnit );
[bcda04c]262 }
263
[b32ada31]264 //=============================================================================================
[bcda04c]265 // Generic keyword implementation
[b32ada31]266 //=============================================================================================
[2065609]267 void ConcurrentSueKeyword::postvisit(StructDecl * decl) {
[9f5ecf5]268 if( decl->name == type_name && decl->body ) {
[bcda04c]269 assert( !type_decl );
270 type_decl = decl;
[b32ada31]271 }
[bcda04c]272 else if ( is_target(decl) ) {
[b32ada31]273 handle( decl );
274 }
275
276 }
277
[bcda04c]278 void ConcurrentSueKeyword::handle( StructDecl * decl ) {
[9f5ecf5]279 if( ! decl->body ) return;
[b32ada31]280
[bcda04c]281 if( !type_decl ) throw SemanticError( context_error, decl );
[b32ada31]282
[bcda04c]283 FunctionDecl * func = forwardDeclare( decl );
284 ObjectDecl * field = addField( decl );
[2f9a722]285 addRoutines( field, func );
[b32ada31]286 }
287
[bcda04c]288 FunctionDecl * ConcurrentSueKeyword::forwardDeclare( StructDecl * decl ) {
289
290 StructDecl * forward = decl->clone();
291 forward->set_body( false );
292 deleteAll( forward->get_members() );
293 forward->get_members().clear();
294
[bd4d011]295 FunctionType * get_type = new FunctionType( noQualifiers, false );
[bcda04c]296 ObjectDecl * this_decl = new ObjectDecl(
297 "this",
[b32ada31]298 noStorage,
299 LinkageSpec::Cforall,
300 nullptr,
[83a071f9]301 new ReferenceType(
[b32ada31]302 noQualifiers,
[bcda04c]303 new StructInstType(
304 noQualifiers,
305 decl
306 )
[b32ada31]307 ),
308 nullptr
309 );
310
[bd4d011]311 get_type->get_parameters().push_back( this_decl );
312 get_type->get_returnVals().push_back(
[e04b636]313 new ObjectDecl(
314 "ret",
315 noStorage,
316 LinkageSpec::Cforall,
317 nullptr,
318 new PointerType(
319 noQualifiers,
320 new StructInstType(
321 noQualifiers,
[bcda04c]322 type_decl
[e04b636]323 )
324 ),
325 nullptr
326 )
327 );
[b32ada31]328
[bcda04c]329 FunctionDecl * get_decl = new FunctionDecl(
330 getter_name,
331 Type::Static,
332 LinkageSpec::Cforall,
[bd4d011]333 get_type,
[bcda04c]334 nullptr,
335 noAttributes,
336 Type::Inline
337 );
338
[bd4d011]339 FunctionDecl * main_decl = nullptr;
340
341 if( needs_main ) {
342 FunctionType * main_type = new FunctionType( noQualifiers, false );
[bf2438c]343
[bd4d011]344 main_type->get_parameters().push_back( this_decl->clone() );
345
346 main_decl = new FunctionDecl(
347 "main",
348 noStorage,
349 LinkageSpec::Cforall,
350 main_type,
351 nullptr
352 );
353 }
354
[2065609]355 declsToAddBefore.push_back( forward );
356 if( needs_main ) declsToAddBefore.push_back( main_decl );
357 declsToAddBefore.push_back( get_decl );
[bcda04c]358
359 return get_decl;
360 }
361
362 ObjectDecl * ConcurrentSueKeyword::addField( StructDecl * decl ) {
363 ObjectDecl * field = new ObjectDecl(
364 field_name,
365 noStorage,
366 LinkageSpec::Cforall,
367 nullptr,
368 new StructInstType(
369 noQualifiers,
370 type_decl
371 ),
372 nullptr
373 );
374
375 decl->get_members().push_back( field );
376
377 return field;
378 }
379
[2f9a722]380 void ConcurrentSueKeyword::addRoutines( ObjectDecl * field, FunctionDecl * func ) {
[b32ada31]381 CompoundStmt * statement = new CompoundStmt( noLabels );
[bf2438c]382 statement->push_back(
[b32ada31]383 new ReturnStmt(
384 noLabels,
[e04b636]385 new AddressExpr(
[bcda04c]386 new MemberExpr(
387 field,
388 UntypedExpr::createDeref( new VariableExpr( func->get_functionType()->get_parameters().front() ) )
[e04b636]389 )
[b32ada31]390 )
391 )
392 );
393
[bcda04c]394 FunctionDecl * get_decl = func->clone();
395
396 get_decl->set_statements( statement );
[e04b636]397
398 declsToAddAfter.push_back( get_decl );
399
[bcda04c]400 // get_decl->fixUniqueId();
[b32ada31]401 }
402
[64adb03]403 //=============================================================================================
404 // Mutex keyword implementation
405 //=============================================================================================
[97e3296]406
[2065609]407 void MutexKeyword::postvisit(FunctionDecl* decl) {
[102a58b]408
[64adb03]409 std::list<DeclarationWithType*> mutexArgs = findMutexArgs( decl );
410 if( mutexArgs.empty() ) return;
411
[549c006]412 if( CodeGen::isConstructor(decl->name) ) throw SemanticError( "constructors cannot have mutex parameters", decl );
413
414 bool isDtor = CodeGen::isDestructor( decl->name );
415
416 if( isDtor && mutexArgs.size() != 1 ) throw SemanticError( "destructors can only have 1 mutex argument", decl );
417
[64adb03]418 for(auto arg : mutexArgs) {
419 validate( arg );
420 }
421
422 CompoundStmt* body = decl->get_statements();
423 if( ! body ) return;
424
[b32ada31]425 if( !monitor_decl ) throw SemanticError( "mutex keyword requires monitors to be in scope, add #include <monitor>", decl );
426 if( !guard_decl ) throw SemanticError( "mutex keyword requires monitors to be in scope, add #include <monitor>", decl );
[549c006]427 if( !dtor_guard_decl ) throw SemanticError( "mutex keyword requires monitors to be in scope, add #include <monitor>", decl );
[b32ada31]428
[549c006]429 if( isDtor ) {
430 addDtorStatments( decl, body, mutexArgs );
431 }
432 else {
433 addStatments( decl, body, mutexArgs );
434 }
[64adb03]435 }
436
[2065609]437 void MutexKeyword::postvisit(StructDecl* decl) {
[102a58b]438
[9f5ecf5]439 if( decl->name == "monitor_desc" ) {
[9243cc91]440 assert( !monitor_decl );
441 monitor_decl = decl;
442 }
[9f5ecf5]443 else if( decl->name == "monitor_guard_t" ) {
[ef42b143]444 assert( !guard_decl );
445 guard_decl = decl;
446 }
[549c006]447 else if( decl->name == "monitor_dtor_guard_t" ) {
448 assert( !dtor_guard_decl );
449 dtor_guard_decl = decl;
450 }
[9243cc91]451 }
452
[64adb03]453 std::list<DeclarationWithType*> MutexKeyword::findMutexArgs( FunctionDecl* decl ) {
454 std::list<DeclarationWithType*> mutexArgs;
455
456 for( auto arg : decl->get_functionType()->get_parameters()) {
457 //Find mutex arguments
458 Type* ty = arg->get_type();
[615a096]459 if( ! ty->get_mutex() ) continue;
[64adb03]460
461 //Append it to the list
462 mutexArgs.push_back( arg );
463 }
464
465 return mutexArgs;
466 }
467
468 void MutexKeyword::validate( DeclarationWithType * arg ) {
469 Type* ty = arg->get_type();
470
471 //Makes sure it's not a copy
[870d1f0]472 ReferenceType* rty = dynamic_cast< ReferenceType * >( ty );
[83a071f9]473 if( ! rty ) throw SemanticError( "Mutex argument must be of reference type ", arg );
[64adb03]474
475 //Make sure the we are pointing directly to a type
[83a071f9]476 Type* base = rty->get_base();
477 if( dynamic_cast< ReferenceType * >( base ) ) throw SemanticError( "Mutex argument have exactly one level of indirection ", arg );
478 if( dynamic_cast< PointerType * >( base ) ) throw SemanticError( "Mutex argument have exactly one level of indirection ", arg );
[64adb03]479
480 //Make sure that typed isn't mutex
[e04b636]481 if( base->get_mutex() ) throw SemanticError( "mutex keyword may only appear once per argument ", arg );
[64adb03]482 }
483
[549c006]484 void MutexKeyword::addDtorStatments( FunctionDecl* func, CompoundStmt * body, const std::list<DeclarationWithType * > & args ) {
485 Type * arg_type = args.front()->get_type()->clone();
486 arg_type->set_mutex( false );
487
488 ObjectDecl * monitors = new ObjectDecl(
489 "__monitor",
490 noStorage,
491 LinkageSpec::Cforall,
492 nullptr,
493 new PointerType(
494 noQualifiers,
495 new StructInstType(
496 noQualifiers,
497 monitor_decl
498 )
499 ),
500 new SingleInit( new UntypedExpr(
501 new NameExpr( "get_monitor" ),
502 { new CastExpr( new VariableExpr( args.front() ), arg_type ) }
503 ))
504 );
505
506 assert(generic_func);
507
508 //in reverse order :
509 // monitor_guard_t __guard = { __monitors, #, func };
510 body->push_front(
511 new DeclStmt( noLabels, new ObjectDecl(
512 "__guard",
513 noStorage,
514 LinkageSpec::Cforall,
515 nullptr,
516 new StructInstType(
517 noQualifiers,
518 dtor_guard_decl
519 ),
520 new ListInit(
521 {
522 new SingleInit( new AddressExpr( new VariableExpr( monitors ) ) ),
523 new SingleInit( new CastExpr( new VariableExpr( func ), generic_func->clone() ) )
524 },
525 noDesignators,
526 true
527 )
528 ))
529 );
530
531 //monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) };
532 body->push_front( new DeclStmt( noLabels, monitors) );
533 }
534
[97e3296]535 void MutexKeyword::addStatments( FunctionDecl* func, CompoundStmt * body, const std::list<DeclarationWithType * > & args ) {
[9243cc91]536 ObjectDecl * monitors = new ObjectDecl(
537 "__monitors",
538 noStorage,
539 LinkageSpec::Cforall,
540 nullptr,
541 new ArrayType(
542 noQualifiers,
543 new PointerType(
544 noQualifiers,
545 new StructInstType(
546 noQualifiers,
547 monitor_decl
548 )
549 ),
550 new ConstantExpr( Constant::from_ulong( args.size() ) ),
551 false,
552 false
553 ),
554 new ListInit(
[bd41764]555 map_range < std::list<Initializer*> > ( args, [](DeclarationWithType * var ){
[cb0e6de]556 Type * type = var->get_type()->clone();
557 type->set_mutex( false );
[9243cc91]558 return new SingleInit( new UntypedExpr(
559 new NameExpr( "get_monitor" ),
[cb0e6de]560 { new CastExpr( new VariableExpr( var ), type ) }
[9243cc91]561 ) );
562 })
563 )
564 );
565
[97e3296]566 assert(generic_func);
567
[64adb03]568 //in reverse order :
[97e3296]569 // monitor_guard_t __guard = { __monitors, #, func };
[64adb03]570 body->push_front(
571 new DeclStmt( noLabels, new ObjectDecl(
572 "__guard",
573 noStorage,
574 LinkageSpec::Cforall,
575 nullptr,
576 new StructInstType(
577 noQualifiers,
[ef42b143]578 guard_decl
[64adb03]579 ),
580 new ListInit(
581 {
[9243cc91]582 new SingleInit( new VariableExpr( monitors ) ),
[97e3296]583 new SingleInit( new ConstantExpr( Constant::from_ulong( args.size() ) ) ),
584 new SingleInit( new CastExpr( new VariableExpr( func ), generic_func->clone() ) )
[ef42b143]585 },
586 noDesignators,
587 true
[64adb03]588 )
589 ))
590 );
591
[ef42b143]592 //monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) };
[9243cc91]593 body->push_front( new DeclStmt( noLabels, monitors) );
[64adb03]594 }
[bd4d011]595
596 //=============================================================================================
597 // General entry routine
598 //=============================================================================================
[549c006]599 void ThreadStarter::previsit( StructDecl * decl ) {
600 if( decl->name == "thread_desc" && decl->body ) {
601 assert( !thread_decl );
602 thread_decl = decl;
603 }
604 }
605
[2065609]606 void ThreadStarter::postvisit(FunctionDecl * decl) {
[9f5ecf5]607 if( ! CodeGen::isConstructor(decl->name) ) return;
[bd4d011]608
[549c006]609 Type * typeof_this = InitTweak::getTypeofThis(decl->type);
610 StructInstType * ctored_type = dynamic_cast< StructInstType * >( typeof_this );
611 if( ctored_type && ctored_type->baseStruct == thread_decl ) {
612 thread_ctor_seen = true;
613 }
614
[bd4d011]615 DeclarationWithType * param = decl->get_functionType()->get_parameters().front();
[ce8c12f]616 auto type = dynamic_cast< StructInstType * >( InitTweak::getPointerBase( param->get_type() ) );
[bd4d011]617 if( type && type->get_baseStruct()->is_thread() ) {
[549c006]618 if( !thread_decl || !thread_ctor_seen ) {
619 throw SemanticError("thread keyword requires threads to be in scope, add #include <thread>");
620 }
621
[bd4d011]622 addStartStatement( decl, param );
623 }
624 }
625
626 void ThreadStarter::addStartStatement( FunctionDecl * decl, DeclarationWithType * param ) {
627 CompoundStmt * stmt = decl->get_statements();
628
629 if( ! stmt ) return;
630
[bf2438c]631 stmt->push_back(
[bd4d011]632 new ExprStmt(
633 noLabels,
634 new UntypedExpr(
635 new NameExpr( "__thrd_start" ),
636 { new VariableExpr( param ) }
637 )
638 )
639 );
640 }
[68fe077a]641};
[6b0b624]642
643// Local Variables: //
644// mode: c //
645// tab-width: 4 //
646// End: //
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