source: src/Concurrency/Keywords.cc@ e2f7bc3

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 e2f7bc3 was a843067, checked in by Thierry Delisle <tdelisle@…>, 8 years ago

Fixed several errors in monitor.c
Update debug prints
Added proper sched-ext-parse test
  • Property mode set to 100644
File size: 17.2 KB
Line 
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 :
13// Update Count : 5
14//
15
16#include "Concurrency/Keywords.h"
17
18#include <cassert> // for assert
19#include <string> // for string, operator==
20
21#include "Common/PassVisitor.h" // for PassVisitor
22#include "Common/SemanticError.h" // for SemanticError
23#include "Common/utility.h" // for deleteAll, map_range
24#include "CodeGen/OperatorTable.h" // for isConstructor
25#include "InitTweak/InitTweak.h" // for getPointerBase
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;
38
39namespace Concurrency {
40
41 namespace {
42 const std::list<Label> noLabels;
43 const std::list< Attribute * > noAttributes;
44 Type::StorageClasses noStorage;
45 Type::Qualifiers noQualifiers;
46 }
47
48 //=============================================================================================
49 // Pass declarations
50 //=============================================================================================
51
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 //
61 class ConcurrentSueKeyword : public WithDeclsToAdd {
62 public:
63
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 ) {}
66
67 virtual ~ConcurrentSueKeyword() {}
68
69 void postvisit( StructDecl * decl );
70
71 void handle( StructDecl * );
72 FunctionDecl * forwardDeclare( StructDecl * );
73 ObjectDecl * addField( StructDecl * );
74 void addRoutines( ObjectDecl *, FunctionDecl * );
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;
83 bool needs_main;
84
85 StructDecl* type_decl = nullptr;
86 };
87
88
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 //
98 class ThreadKeyword final : public ConcurrentSueKeyword {
99 public:
100
101 ThreadKeyword() : ConcurrentSueKeyword(
102 "thread_desc",
103 "__thrd",
104 "get_thread",
105 "thread keyword requires threads to be in scope, add #include <thread>",
106 true
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 ) {
115 PassVisitor< ThreadKeyword > impl;
116 acceptAll( translationUnit, impl );
117 }
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 //
129 class CoroutineKeyword final : public ConcurrentSueKeyword {
130 public:
131
132 CoroutineKeyword() : ConcurrentSueKeyword(
133 "coroutine_desc",
134 "__cor",
135 "get_coroutine",
136 "coroutine keyword requires coroutines to be in scope, add #include <coroutine>",
137 true
138 )
139 {}
140
141 virtual ~CoroutineKeyword() {}
142
143 virtual bool is_target( StructDecl * decl ) override final { return decl->is_coroutine(); }
144
145 static void implement( std::list< Declaration * > & translationUnit ) {
146 PassVisitor< CoroutineKeyword > impl;
147 acceptAll( translationUnit, impl );
148 }
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 //
160 class MonitorKeyword final : public ConcurrentSueKeyword {
161 public:
162
163 MonitorKeyword() : ConcurrentSueKeyword(
164 "monitor_desc",
165 "__mon",
166 "get_monitor",
167 "monitor keyword requires monitors to be in scope, add #include <monitor>",
168 false
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 ) {
177 PassVisitor< MonitorKeyword > impl;
178 acceptAll( translationUnit, impl );
179 }
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 ) {
185 // monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) };
186 // monitor_guard_t __guard = { __monitors, 2 };
187 // /*Some code*/ => /*Some code*/
188 // } }
189 //
190 class MutexKeyword final {
191 public:
192
193 void postvisit( FunctionDecl * decl );
194 void postvisit( StructDecl * decl );
195
196 std::list<DeclarationWithType*> findMutexArgs( FunctionDecl* );
197 void validate( DeclarationWithType * );
198 void addStatments( FunctionDecl* func, CompoundStmt *, const std::list<DeclarationWithType * > &);
199
200 static void implement( std::list< Declaration * > & translationUnit ) {
201 PassVisitor< MutexKeyword > impl;
202 acceptAll( translationUnit, impl );
203 }
204
205 private:
206 StructDecl* monitor_decl = nullptr;
207 StructDecl* guard_decl = nullptr;
208
209 static std::unique_ptr< Type > generic_func;
210 };
211
212 std::unique_ptr< Type > MutexKeyword::generic_func = std::unique_ptr< Type >(
213 new FunctionType(
214 noQualifiers,
215 true
216 )
217 );
218
219 //-----------------------------------------------------------------------------
220 //Handles mutex routines definitions :
221 // void foo( A * mutex a, B * mutex b, int i ) { void foo( A * a, B * b, int i ) {
222 // monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) };
223 // monitor_guard_t __guard = { __monitors, 2 };
224 // /*Some code*/ => /*Some code*/
225 // } }
226 //
227 class ThreadStarter final {
228 public:
229
230 void postvisit( FunctionDecl * decl );
231
232 void addStartStatement( FunctionDecl * decl, DeclarationWithType * param );
233
234 static void implement( std::list< Declaration * > & translationUnit ) {
235 PassVisitor< ThreadStarter > impl;
236 acceptAll( translationUnit, impl );
237 }
238 };
239
240 //=============================================================================================
241 // General entry routine
242 //=============================================================================================
243 void applyKeywords( std::list< Declaration * > & translationUnit ) {
244 ThreadKeyword ::implement( translationUnit );
245 CoroutineKeyword ::implement( translationUnit );
246 MonitorKeyword ::implement( translationUnit );
247 }
248
249 void implementMutexFuncs( std::list< Declaration * > & translationUnit ) {
250 MutexKeyword ::implement( translationUnit );
251 }
252
253 void implementThreadStarter( std::list< Declaration * > & translationUnit ) {
254 ThreadStarter ::implement( translationUnit );
255 }
256
257 //=============================================================================================
258 // Generic keyword implementation
259 //=============================================================================================
260 void ConcurrentSueKeyword::postvisit(StructDecl * decl) {
261 if( decl->name == type_name && decl->body ) {
262 assert( !type_decl );
263 type_decl = decl;
264 }
265 else if ( is_target(decl) ) {
266 handle( decl );
267 }
268
269 }
270
271 void ConcurrentSueKeyword::handle( StructDecl * decl ) {
272 if( ! decl->body ) return;
273
274 if( !type_decl ) throw SemanticError( context_error, decl );
275
276 FunctionDecl * func = forwardDeclare( decl );
277 ObjectDecl * field = addField( decl );
278 addRoutines( field, func );
279 }
280
281 FunctionDecl * ConcurrentSueKeyword::forwardDeclare( StructDecl * decl ) {
282
283 StructDecl * forward = decl->clone();
284 forward->set_body( false );
285 deleteAll( forward->get_members() );
286 forward->get_members().clear();
287
288 FunctionType * get_type = new FunctionType( noQualifiers, false );
289 ObjectDecl * this_decl = new ObjectDecl(
290 "this",
291 noStorage,
292 LinkageSpec::Cforall,
293 nullptr,
294 new ReferenceType(
295 noQualifiers,
296 new StructInstType(
297 noQualifiers,
298 decl
299 )
300 ),
301 nullptr
302 );
303
304 get_type->get_parameters().push_back( this_decl );
305 get_type->get_returnVals().push_back(
306 new ObjectDecl(
307 "ret",
308 noStorage,
309 LinkageSpec::Cforall,
310 nullptr,
311 new PointerType(
312 noQualifiers,
313 new StructInstType(
314 noQualifiers,
315 type_decl
316 )
317 ),
318 nullptr
319 )
320 );
321
322 FunctionDecl * get_decl = new FunctionDecl(
323 getter_name,
324 Type::Static,
325 LinkageSpec::Cforall,
326 get_type,
327 nullptr,
328 noAttributes,
329 Type::Inline
330 );
331
332 FunctionDecl * main_decl = nullptr;
333
334 if( needs_main ) {
335 FunctionType * main_type = new FunctionType( noQualifiers, false );
336
337 main_type->get_parameters().push_back( this_decl->clone() );
338
339 main_decl = new FunctionDecl(
340 "main",
341 noStorage,
342 LinkageSpec::Cforall,
343 main_type,
344 nullptr
345 );
346 }
347
348 declsToAddBefore.push_back( forward );
349 if( needs_main ) declsToAddBefore.push_back( main_decl );
350 declsToAddBefore.push_back( get_decl );
351
352 return get_decl;
353 }
354
355 ObjectDecl * ConcurrentSueKeyword::addField( StructDecl * decl ) {
356 ObjectDecl * field = new ObjectDecl(
357 field_name,
358 noStorage,
359 LinkageSpec::Cforall,
360 nullptr,
361 new StructInstType(
362 noQualifiers,
363 type_decl
364 ),
365 nullptr
366 );
367
368 decl->get_members().push_back( field );
369
370 return field;
371 }
372
373 void ConcurrentSueKeyword::addRoutines( ObjectDecl * field, FunctionDecl * func ) {
374 CompoundStmt * statement = new CompoundStmt( noLabels );
375 statement->push_back(
376 new ReturnStmt(
377 noLabels,
378 new AddressExpr(
379 new MemberExpr(
380 field,
381 UntypedExpr::createDeref( new VariableExpr( func->get_functionType()->get_parameters().front() ) )
382 )
383 )
384 )
385 );
386
387 FunctionDecl * get_decl = func->clone();
388
389 get_decl->set_statements( statement );
390
391 declsToAddAfter.push_back( get_decl );
392
393 // get_decl->fixUniqueId();
394 }
395
396 //=============================================================================================
397 // Mutex keyword implementation
398 //=============================================================================================
399
400 void MutexKeyword::postvisit(FunctionDecl* decl) {
401
402 std::list<DeclarationWithType*> mutexArgs = findMutexArgs( decl );
403 if( mutexArgs.empty() ) return;
404
405 for(auto arg : mutexArgs) {
406 validate( arg );
407 }
408
409 CompoundStmt* body = decl->get_statements();
410 if( ! body ) return;
411
412 if( !monitor_decl ) throw SemanticError( "mutex keyword requires monitors to be in scope, add #include <monitor>", decl );
413 if( !guard_decl ) throw SemanticError( "mutex keyword requires monitors to be in scope, add #include <monitor>", decl );
414
415 addStatments( decl, body, mutexArgs );
416 }
417
418 void MutexKeyword::postvisit(StructDecl* decl) {
419
420 if( decl->name == "monitor_desc" ) {
421 assert( !monitor_decl );
422 monitor_decl = decl;
423 }
424 else if( decl->name == "monitor_guard_t" ) {
425 assert( !guard_decl );
426 guard_decl = decl;
427 }
428 }
429
430 std::list<DeclarationWithType*> MutexKeyword::findMutexArgs( FunctionDecl* decl ) {
431 std::list<DeclarationWithType*> mutexArgs;
432
433 for( auto arg : decl->get_functionType()->get_parameters()) {
434 //Find mutex arguments
435 Type* ty = arg->get_type();
436 if( ! ty->get_mutex() ) continue;
437
438 //Append it to the list
439 mutexArgs.push_back( arg );
440 }
441
442 return mutexArgs;
443 }
444
445 void MutexKeyword::validate( DeclarationWithType * arg ) {
446 Type* ty = arg->get_type();
447
448 //Makes sure it's not a copy
449 ReferenceType* rty = dynamic_cast< ReferenceType * >( ty );
450 if( ! rty ) throw SemanticError( "Mutex argument must be of reference type ", arg );
451
452 //Make sure the we are pointing directly to a type
453 Type* base = rty->get_base();
454 if( dynamic_cast< ReferenceType * >( base ) ) throw SemanticError( "Mutex argument have exactly one level of indirection ", arg );
455 if( dynamic_cast< PointerType * >( base ) ) throw SemanticError( "Mutex argument have exactly one level of indirection ", arg );
456
457 //Make sure that typed isn't mutex
458 if( base->get_mutex() ) throw SemanticError( "mutex keyword may only appear once per argument ", arg );
459 }
460
461 void MutexKeyword::addStatments( FunctionDecl* func, CompoundStmt * body, const std::list<DeclarationWithType * > & args ) {
462 ObjectDecl * monitors = new ObjectDecl(
463 "__monitors",
464 noStorage,
465 LinkageSpec::Cforall,
466 nullptr,
467 new ArrayType(
468 noQualifiers,
469 new PointerType(
470 noQualifiers,
471 new StructInstType(
472 noQualifiers,
473 monitor_decl
474 )
475 ),
476 new ConstantExpr( Constant::from_ulong( args.size() ) ),
477 false,
478 false
479 ),
480 new ListInit(
481 map_range < std::list<Initializer*> > ( args, [this](DeclarationWithType * var ){
482 Type * type = var->get_type()->clone();
483 type->set_mutex( false );
484 return new SingleInit( new UntypedExpr(
485 new NameExpr( "get_monitor" ),
486 { new CastExpr( new VariableExpr( var ), type ) }
487 ) );
488 })
489 )
490 );
491
492 assert(generic_func);
493
494 //in reverse order :
495 // monitor_guard_t __guard = { __monitors, #, func };
496 body->push_front(
497 new DeclStmt( noLabels, new ObjectDecl(
498 "__guard",
499 noStorage,
500 LinkageSpec::Cforall,
501 nullptr,
502 new StructInstType(
503 noQualifiers,
504 guard_decl
505 ),
506 new ListInit(
507 {
508 new SingleInit( new VariableExpr( monitors ) ),
509 new SingleInit( new ConstantExpr( Constant::from_ulong( args.size() ) ) ),
510 new SingleInit( new CastExpr( new VariableExpr( func ), generic_func->clone() ) )
511 },
512 noDesignators,
513 true
514 )
515 ))
516 );
517
518 //monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) };
519 body->push_front( new DeclStmt( noLabels, monitors) );
520 }
521
522 //=============================================================================================
523 // General entry routine
524 //=============================================================================================
525 void ThreadStarter::postvisit(FunctionDecl * decl) {
526 if( ! CodeGen::isConstructor(decl->name) ) return;
527
528 DeclarationWithType * param = decl->get_functionType()->get_parameters().front();
529 auto type = dynamic_cast< StructInstType * >( InitTweak::getPointerBase( param->get_type() ) );
530 if( type && type->get_baseStruct()->is_thread() ) {
531 addStartStatement( decl, param );
532 }
533 }
534
535 void ThreadStarter::addStartStatement( FunctionDecl * decl, DeclarationWithType * param ) {
536 CompoundStmt * stmt = decl->get_statements();
537
538 if( ! stmt ) return;
539
540 stmt->push_back(
541 new ExprStmt(
542 noLabels,
543 new UntypedExpr(
544 new NameExpr( "__thrd_start" ),
545 { new VariableExpr( param ) }
546 )
547 )
548 );
549 }
550};
551
552// Local Variables: //
553// mode: c //
554// tab-width: 4 //
555// End: //
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