[9f5ecf5] | 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 | // Waitfor.cc -- |
---|
| 8 | // |
---|
| 9 | // Author : Thierry Delisle |
---|
| 10 | // Created On : Mon Aug 28 11:06:52 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 | using namespace std::string_literals; |
---|
| 22 | |
---|
| 23 | #include "Common/PassVisitor.h" // for PassVisitor |
---|
| 24 | #include "Common/SemanticError.h" // for SemanticError |
---|
| 25 | #include "Common/utility.h" // for deleteAll, map_range |
---|
| 26 | #include "CodeGen/OperatorTable.h" // for isConstructor |
---|
| 27 | #include "InitTweak/InitTweak.h" // for getPointerBase |
---|
| 28 | #include "Parser/LinkageSpec.h" // for Cforall |
---|
[1dcd9554] | 29 | #include "ResolvExpr/Resolver.h" // for findVoidExpression |
---|
[9f5ecf5] | 30 | #include "SynTree/Constant.h" // for Constant |
---|
| 31 | #include "SynTree/Declaration.h" // for StructDecl, FunctionDecl, ObjectDecl |
---|
| 32 | #include "SynTree/Expression.h" // for VariableExpr, ConstantExpr, Untype... |
---|
| 33 | #include "SynTree/Initializer.h" // for SingleInit, ListInit, Initializer ... |
---|
| 34 | #include "SynTree/Label.h" // for Label |
---|
| 35 | #include "SynTree/Statement.h" // for CompoundStmt, DeclStmt, ExprStmt |
---|
| 36 | #include "SynTree/Type.h" // for StructInstType, Type, PointerType |
---|
| 37 | #include "SynTree/Visitor.h" // for Visitor, acceptAll |
---|
| 38 | |
---|
| 39 | class Attribute; |
---|
| 40 | /* |
---|
| 41 | void foo() { |
---|
| 42 | while( true ) { |
---|
| 43 | when( a < 1 ) waitfor( f, a ) { bar(); } |
---|
| 44 | or timeout( swagl() ); |
---|
| 45 | or waitfor( g, a ) { baz(); } |
---|
| 46 | or waitfor( ^?{}, a ) { break; } |
---|
| 47 | or waitfor( ^?{} ) { break; } |
---|
| 48 | } |
---|
| 49 | } |
---|
| 50 | |
---|
| 51 | void f(int i, float f, A & mutex b, struct foo * ); |
---|
| 52 | void f(int ); |
---|
| 53 | |
---|
| 54 | |
---|
| 55 | | | |
---|
| 56 | | | |
---|
| 57 | | | |
---|
| 58 | | | |
---|
| 59 | | | |
---|
| 60 | \ | | / |
---|
| 61 | \ / |
---|
| 62 | \ / |
---|
| 63 | \/ |
---|
| 64 | |
---|
| 65 | |
---|
| 66 | void foo() { |
---|
| 67 | while( true ) { |
---|
| 68 | |
---|
| 69 | acceptable_t acceptables[3]; |
---|
| 70 | if( a < 1 ) { |
---|
| 71 | acceptables[0].func = f; |
---|
| 72 | acceptables[0].mon = a; |
---|
| 73 | } |
---|
| 74 | acceptables[1].func = g; |
---|
| 75 | acceptables[1].mon = a; |
---|
| 76 | |
---|
| 77 | acceptables[2].func = f; |
---|
| 78 | acceptables[2].mon = a; |
---|
| 79 | acceptables[2].is_dtor = true; |
---|
| 80 | |
---|
| 81 | int ret = waitfor_internal( acceptables, swagl() ); |
---|
| 82 | |
---|
| 83 | switch( ret ) { |
---|
| 84 | case 0: |
---|
| 85 | { |
---|
| 86 | bar(); |
---|
| 87 | } |
---|
| 88 | case 1: |
---|
| 89 | { |
---|
| 90 | baz(); |
---|
| 91 | } |
---|
| 92 | case 2: |
---|
| 93 | signal(a); |
---|
| 94 | { |
---|
| 95 | break; |
---|
| 96 | } |
---|
| 97 | } |
---|
| 98 | } |
---|
| 99 | }*/ |
---|
| 100 | |
---|
| 101 | namespace Concurrency { |
---|
| 102 | |
---|
| 103 | namespace { |
---|
| 104 | const std::list<Label> noLabels; |
---|
| 105 | const std::list< Attribute * > noAttributes; |
---|
| 106 | Type::StorageClasses noStorage; |
---|
| 107 | Type::Qualifiers noQualifiers; |
---|
| 108 | } |
---|
| 109 | |
---|
| 110 | //============================================================================================= |
---|
| 111 | // Pass declarations |
---|
| 112 | //============================================================================================= |
---|
| 113 | |
---|
[1dcd9554] | 114 | class GenerateWaitForPass final : public WithIndexer { |
---|
[9f5ecf5] | 115 | public: |
---|
| 116 | |
---|
| 117 | void premutate( FunctionDecl * decl ); |
---|
| 118 | void premutate( StructDecl * decl ); |
---|
| 119 | |
---|
| 120 | Statement * postmutate( WaitForStmt * stmt ); |
---|
| 121 | |
---|
| 122 | static void generate( std::list< Declaration * > & translationUnit ) { |
---|
| 123 | PassVisitor< GenerateWaitForPass > impl; |
---|
| 124 | acceptAll( translationUnit, impl ); |
---|
| 125 | } |
---|
| 126 | |
---|
| 127 | ObjectDecl * declare( unsigned long count, CompoundStmt * stmt ); |
---|
| 128 | ObjectDecl * declMon( WaitForStmt::Clause & clause, CompoundStmt * stmt ); |
---|
| 129 | void init( ObjectDecl * acceptables, int index, WaitForStmt::Clause & clause, CompoundStmt * stmt ); |
---|
| 130 | Expression * init_timeout( Expression *& time, Expression *& time_cond, bool has_else, Expression *& else_cond, CompoundStmt * stmt ); |
---|
[1dcd9554] | 131 | Expression * call(size_t count, ObjectDecl * acceptables, Expression * timeout, CompoundStmt * stmt); |
---|
| 132 | void choose( WaitForStmt * waitfor, Expression * result, CompoundStmt * stmt ); |
---|
[9f5ecf5] | 133 | |
---|
| 134 | static void implement( std::list< Declaration * > & translationUnit ) { |
---|
| 135 | PassVisitor< GenerateWaitForPass > impl; |
---|
| 136 | mutateAll( translationUnit, impl ); |
---|
| 137 | } |
---|
| 138 | |
---|
| 139 | |
---|
| 140 | private: |
---|
| 141 | FunctionDecl * decl_waitfor = nullptr; |
---|
| 142 | StructDecl * decl_acceptable = nullptr; |
---|
| 143 | StructDecl * decl_monitor = nullptr; |
---|
| 144 | |
---|
| 145 | static std::unique_ptr< Type > generic_func; |
---|
| 146 | |
---|
| 147 | UniqueName namer_mon = "__monitors_"s; |
---|
| 148 | UniqueName namer_acc = "__acceptables_"s; |
---|
| 149 | UniqueName namer_tim = "__timeout_"s; |
---|
[1dcd9554] | 150 | UniqueName namer_ret = "__return_"s; |
---|
[9f5ecf5] | 151 | }; |
---|
| 152 | |
---|
| 153 | //============================================================================================= |
---|
| 154 | // General entry routine |
---|
| 155 | //============================================================================================= |
---|
| 156 | void generateWaitFor( std::list< Declaration * > & translationUnit ) { |
---|
| 157 | GenerateWaitForPass ::implement( translationUnit ); |
---|
| 158 | } |
---|
| 159 | |
---|
| 160 | //============================================================================================= |
---|
| 161 | // Generic helper routine |
---|
| 162 | //============================================================================================= |
---|
| 163 | |
---|
| 164 | namespace { |
---|
| 165 | Expression * makeOpIndex( DeclarationWithType * array, unsigned long index ) { |
---|
[1dcd9554] | 166 | return new UntypedExpr( |
---|
[9f5ecf5] | 167 | new NameExpr( "?[?]" ), |
---|
| 168 | { |
---|
| 169 | new VariableExpr( array ), |
---|
| 170 | new ConstantExpr( Constant::from_ulong( index ) ) |
---|
| 171 | } |
---|
| 172 | ); |
---|
| 173 | } |
---|
| 174 | |
---|
| 175 | Expression * makeOpAssign( Expression * lhs, Expression * rhs ) { |
---|
[1dcd9554] | 176 | return new UntypedExpr( |
---|
[9f5ecf5] | 177 | new NameExpr( "?=?" ), |
---|
| 178 | { lhs, rhs } |
---|
| 179 | ); |
---|
| 180 | } |
---|
| 181 | |
---|
[1dcd9554] | 182 | Expression * makeOpMember( Expression * sue, const std::string & mem ) { |
---|
| 183 | return new UntypedMemberExpr( new NameExpr( mem ), sue ); |
---|
[9f5ecf5] | 184 | } |
---|
| 185 | |
---|
[1dcd9554] | 186 | Statement * makeAccStatement( DeclarationWithType * object, unsigned long index, const std::string & member, Expression * value, const SymTab::Indexer & indexer ) { |
---|
| 187 | std::unique_ptr< Expression > expr( makeOpAssign( |
---|
| 188 | makeOpMember( |
---|
| 189 | makeOpIndex( |
---|
| 190 | object, |
---|
| 191 | index |
---|
[9f5ecf5] | 192 | ), |
---|
[1dcd9554] | 193 | member |
---|
| 194 | ), |
---|
| 195 | value |
---|
| 196 | ) ); |
---|
| 197 | |
---|
| 198 | return new ExprStmt( noLabels, ResolvExpr::findVoidExpression( expr.get(), indexer ) ); |
---|
[9f5ecf5] | 199 | } |
---|
| 200 | |
---|
| 201 | Expression * safeCond( Expression * expr, bool ifnull = true ) { |
---|
| 202 | if( expr ) return expr; |
---|
| 203 | |
---|
| 204 | return new ConstantExpr( Constant::from_bool( ifnull ) ); |
---|
| 205 | } |
---|
[310e5b7] | 206 | |
---|
| 207 | VariableExpr * extractVariable( Expression * func ) { |
---|
| 208 | if( VariableExpr * var = dynamic_cast< VariableExpr * >( func ) ) { |
---|
| 209 | return var; |
---|
| 210 | } |
---|
| 211 | |
---|
| 212 | CastExpr * cast = strict_dynamic_cast< CastExpr * >( func ); |
---|
| 213 | return strict_dynamic_cast< VariableExpr * >( cast->arg ); |
---|
| 214 | } |
---|
| 215 | |
---|
[8f98b78] | 216 | Expression * detectIsDtor( Expression * func ) { |
---|
[310e5b7] | 217 | VariableExpr * typed_func = extractVariable( func ); |
---|
| 218 | bool is_dtor = InitTweak::isDestructor( typed_func->var ); |
---|
| 219 | return new ConstantExpr( Constant::from_bool( is_dtor ) ); |
---|
| 220 | } |
---|
[9f5ecf5] | 221 | }; |
---|
| 222 | |
---|
| 223 | |
---|
| 224 | //============================================================================================= |
---|
| 225 | // Generate waitfor implementation |
---|
| 226 | //============================================================================================= |
---|
| 227 | |
---|
| 228 | void GenerateWaitForPass::premutate( FunctionDecl * decl) { |
---|
[310e5b7] | 229 | if( decl->name != "__waitfor_internal" ) return; |
---|
[9f5ecf5] | 230 | |
---|
| 231 | decl_waitfor = decl; |
---|
| 232 | } |
---|
| 233 | |
---|
| 234 | void GenerateWaitForPass::premutate( StructDecl * decl ) { |
---|
| 235 | if( ! decl->body ) return; |
---|
| 236 | |
---|
| 237 | if( decl->name == "__acceptable_t" ) { |
---|
| 238 | assert( !decl_acceptable ); |
---|
| 239 | decl_acceptable = decl; |
---|
| 240 | } |
---|
| 241 | else if( decl->name == "monitor_desc" ) { |
---|
| 242 | assert( !decl_monitor ); |
---|
| 243 | decl_monitor = decl; |
---|
| 244 | } |
---|
| 245 | } |
---|
| 246 | |
---|
| 247 | Statement * GenerateWaitForPass::postmutate( WaitForStmt * waitfor ) { |
---|
| 248 | if( !decl_monitor || !decl_acceptable ) throw SemanticError( "waitfor keyword requires monitors to be in scope, add #include <monitor>", waitfor ); |
---|
| 249 | |
---|
| 250 | CompoundStmt * stmt = new CompoundStmt( noLabels ); |
---|
| 251 | |
---|
| 252 | ObjectDecl * acceptables = declare( waitfor->clauses.size(), stmt ); |
---|
| 253 | |
---|
| 254 | int index = 0; |
---|
| 255 | for( auto & clause : waitfor->clauses ) { |
---|
| 256 | init( acceptables, index, clause, stmt ); |
---|
| 257 | |
---|
| 258 | index++; |
---|
| 259 | } |
---|
| 260 | |
---|
| 261 | Expression * timeout = init_timeout( |
---|
| 262 | waitfor->timeout.time, |
---|
| 263 | waitfor->timeout.condition, |
---|
| 264 | waitfor->orelse .statement, |
---|
| 265 | waitfor->orelse .condition, |
---|
| 266 | stmt |
---|
| 267 | ); |
---|
| 268 | |
---|
[1dcd9554] | 269 | Expression * result = call( waitfor->clauses.size(), acceptables, timeout, stmt ); |
---|
[9f5ecf5] | 270 | |
---|
[1dcd9554] | 271 | choose( waitfor, result, stmt ); |
---|
[9f5ecf5] | 272 | |
---|
| 273 | return stmt; |
---|
| 274 | } |
---|
| 275 | |
---|
| 276 | ObjectDecl * GenerateWaitForPass::declare( unsigned long count, CompoundStmt * stmt ) |
---|
| 277 | { |
---|
[1dcd9554] | 278 | ObjectDecl * acceptables = ObjectDecl::newObject( |
---|
[9f5ecf5] | 279 | namer_acc.newName(), |
---|
| 280 | new ArrayType( |
---|
| 281 | noQualifiers, |
---|
| 282 | new StructInstType( |
---|
| 283 | noQualifiers, |
---|
| 284 | decl_acceptable |
---|
| 285 | ), |
---|
| 286 | new ConstantExpr( Constant::from_ulong( count ) ), |
---|
| 287 | false, |
---|
| 288 | false |
---|
| 289 | ), |
---|
| 290 | nullptr |
---|
| 291 | ); |
---|
| 292 | |
---|
| 293 | stmt->push_back( new DeclStmt( noLabels, acceptables) ); |
---|
| 294 | |
---|
| 295 | return acceptables; |
---|
| 296 | } |
---|
| 297 | |
---|
| 298 | ObjectDecl * GenerateWaitForPass::declMon( WaitForStmt::Clause & clause, CompoundStmt * stmt ) { |
---|
| 299 | |
---|
[1dcd9554] | 300 | ObjectDecl * mon = ObjectDecl::newObject( |
---|
[9f5ecf5] | 301 | namer_mon.newName(), |
---|
| 302 | new ArrayType( |
---|
| 303 | noQualifiers, |
---|
[8f98b78] | 304 | new PointerType( |
---|
[9f5ecf5] | 305 | noQualifiers, |
---|
[8f98b78] | 306 | new StructInstType( |
---|
| 307 | noQualifiers, |
---|
| 308 | decl_monitor |
---|
| 309 | ) |
---|
[9f5ecf5] | 310 | ), |
---|
| 311 | new ConstantExpr( Constant::from_ulong( clause.target.arguments.size() ) ), |
---|
| 312 | false, |
---|
| 313 | false |
---|
| 314 | ), |
---|
| 315 | new ListInit( |
---|
| 316 | map_range < std::list<Initializer*> > ( clause.target.arguments, [this](Expression * expr ){ |
---|
[8f98b78] | 317 | Expression * untyped = new CastExpr( |
---|
| 318 | new UntypedExpr( |
---|
| 319 | new NameExpr( "get_monitor" ), |
---|
| 320 | { expr } |
---|
| 321 | ), |
---|
| 322 | new PointerType( |
---|
| 323 | noQualifiers, |
---|
| 324 | new StructInstType( |
---|
| 325 | noQualifiers, |
---|
| 326 | decl_monitor |
---|
| 327 | ) |
---|
| 328 | ) |
---|
| 329 | ); |
---|
| 330 | |
---|
| 331 | Expression * init = ResolvExpr::findSingleExpression( untyped, indexer ); |
---|
| 332 | delete untyped; |
---|
| 333 | return new SingleInit( init ); |
---|
[9f5ecf5] | 334 | }) |
---|
| 335 | ) |
---|
| 336 | ); |
---|
| 337 | |
---|
| 338 | stmt->push_back( new DeclStmt( noLabels, mon) ); |
---|
| 339 | |
---|
| 340 | return mon; |
---|
| 341 | } |
---|
| 342 | |
---|
| 343 | void GenerateWaitForPass::init( ObjectDecl * acceptables, int index, WaitForStmt::Clause & clause, CompoundStmt * stmt ) { |
---|
| 344 | |
---|
| 345 | ObjectDecl * monitors = declMon( clause, stmt ); |
---|
| 346 | |
---|
[1dcd9554] | 347 | Type * fptr_t = new PointerType( noQualifiers, new FunctionType( noQualifiers, true ) ); |
---|
| 348 | |
---|
[9f5ecf5] | 349 | CompoundStmt * compound = new CompoundStmt( noLabels ); |
---|
[8f98b78] | 350 | compound->push_back( makeAccStatement( acceptables, index, "is_dtor" , detectIsDtor( clause.target.function ) , indexer ) ); |
---|
[1dcd9554] | 351 | compound->push_back( makeAccStatement( acceptables, index, "func" , new CastExpr( clause.target.function, fptr_t ) , indexer ) ); |
---|
| 352 | compound->push_back( makeAccStatement( acceptables, index, "monitors", new VariableExpr( monitors ) , indexer ) ); |
---|
[8f98b78] | 353 | compound->push_back( makeAccStatement( acceptables, index, "count" , new ConstantExpr( Constant::from_ulong( clause.target.arguments.size() ) ), indexer ) ); |
---|
[9f5ecf5] | 354 | |
---|
| 355 | stmt->push_back( new IfStmt( |
---|
| 356 | noLabels, |
---|
| 357 | safeCond( clause.condition ), |
---|
| 358 | compound, |
---|
| 359 | nullptr |
---|
| 360 | )); |
---|
| 361 | |
---|
| 362 | clause.target.function = nullptr; |
---|
| 363 | clause.target.arguments.empty(); |
---|
| 364 | clause.condition = nullptr; |
---|
| 365 | } |
---|
| 366 | |
---|
| 367 | Expression * GenerateWaitForPass::init_timeout( |
---|
| 368 | Expression *& time, |
---|
| 369 | Expression *& time_cond, |
---|
| 370 | bool has_else, |
---|
| 371 | Expression *& else_cond, |
---|
| 372 | CompoundStmt * stmt |
---|
| 373 | ) { |
---|
[1dcd9554] | 374 | ObjectDecl * timeout = ObjectDecl::newObject( |
---|
[9f5ecf5] | 375 | namer_tim.newName(), |
---|
| 376 | new BasicType( |
---|
| 377 | noQualifiers, |
---|
| 378 | BasicType::LongLongUnsignedInt |
---|
| 379 | ), |
---|
| 380 | new SingleInit( |
---|
| 381 | new ConstantExpr( Constant::from_int( -1 ) ) |
---|
| 382 | ) |
---|
| 383 | ); |
---|
| 384 | |
---|
| 385 | stmt->push_back( new DeclStmt( noLabels, timeout ) ); |
---|
| 386 | |
---|
| 387 | if( time ) { |
---|
| 388 | stmt->push_back( new IfStmt( |
---|
| 389 | noLabels, |
---|
[1dcd9554] | 390 | safeCond( time_cond ), |
---|
[9f5ecf5] | 391 | new ExprStmt( |
---|
| 392 | noLabels, |
---|
| 393 | makeOpAssign( |
---|
| 394 | new VariableExpr( timeout ), |
---|
| 395 | time |
---|
| 396 | ) |
---|
| 397 | ), |
---|
| 398 | nullptr |
---|
| 399 | )); |
---|
| 400 | |
---|
| 401 | time = time_cond = nullptr; |
---|
| 402 | } |
---|
| 403 | |
---|
| 404 | if( has_else ) { |
---|
| 405 | stmt->push_back( new IfStmt( |
---|
| 406 | noLabels, |
---|
| 407 | safeCond( else_cond ), |
---|
| 408 | new ExprStmt( |
---|
| 409 | noLabels, |
---|
| 410 | makeOpAssign( |
---|
| 411 | new VariableExpr( timeout ), |
---|
| 412 | new ConstantExpr( Constant::from_ulong( 0 ) ) |
---|
| 413 | ) |
---|
| 414 | ), |
---|
| 415 | nullptr |
---|
| 416 | )); |
---|
| 417 | |
---|
| 418 | else_cond = nullptr; |
---|
| 419 | } |
---|
| 420 | |
---|
| 421 | return new VariableExpr( timeout ); |
---|
| 422 | } |
---|
[1dcd9554] | 423 | |
---|
| 424 | Expression * GenerateWaitForPass::call( |
---|
| 425 | size_t count, |
---|
| 426 | ObjectDecl * acceptables, |
---|
| 427 | Expression * timeout, |
---|
| 428 | CompoundStmt * stmt |
---|
| 429 | ) { |
---|
| 430 | ObjectDecl * decl = ObjectDecl::newObject( |
---|
| 431 | namer_ret.newName(), |
---|
| 432 | new BasicType( |
---|
| 433 | noQualifiers, |
---|
| 434 | BasicType::LongLongUnsignedInt |
---|
| 435 | ), |
---|
| 436 | new SingleInit( |
---|
| 437 | new UntypedExpr( |
---|
| 438 | VariableExpr::functionPointer( decl_waitfor ), |
---|
| 439 | { |
---|
| 440 | new ConstantExpr( Constant::from_ulong( count ) ), |
---|
| 441 | new VariableExpr( acceptables ), |
---|
| 442 | timeout |
---|
| 443 | } |
---|
| 444 | ) |
---|
| 445 | ) |
---|
| 446 | ); |
---|
| 447 | |
---|
| 448 | stmt->push_back( new DeclStmt( noLabels, decl ) ); |
---|
| 449 | |
---|
| 450 | return new VariableExpr( decl ); |
---|
| 451 | } |
---|
| 452 | |
---|
| 453 | void GenerateWaitForPass::choose( |
---|
| 454 | WaitForStmt * waitfor, |
---|
| 455 | Expression * result, |
---|
| 456 | CompoundStmt * stmt |
---|
| 457 | ) { |
---|
| 458 | SwitchStmt * swtch = new SwitchStmt( |
---|
| 459 | noLabels, |
---|
| 460 | result, |
---|
| 461 | std::list<Statement *>() |
---|
| 462 | ); |
---|
| 463 | |
---|
| 464 | unsigned long i = 0; |
---|
| 465 | for( auto & clause : waitfor->clauses ) { |
---|
| 466 | swtch->statements.push_back( |
---|
| 467 | new CaseStmt( |
---|
| 468 | noLabels, |
---|
| 469 | new ConstantExpr( Constant::from_ulong( i++ ) ), |
---|
| 470 | { |
---|
| 471 | clause.statement, |
---|
| 472 | new BranchStmt( |
---|
| 473 | noLabels, |
---|
| 474 | "", |
---|
| 475 | BranchStmt::Break |
---|
| 476 | ) |
---|
| 477 | } |
---|
| 478 | ) |
---|
| 479 | ); |
---|
| 480 | } |
---|
| 481 | |
---|
| 482 | if(waitfor->timeout.statement) { |
---|
| 483 | swtch->statements.push_back( |
---|
| 484 | new CaseStmt( |
---|
| 485 | noLabels, |
---|
[b18830e] | 486 | new ConstantExpr( Constant::from_int( -2 ) ), |
---|
[1dcd9554] | 487 | { |
---|
| 488 | waitfor->timeout.statement, |
---|
| 489 | new BranchStmt( |
---|
| 490 | noLabels, |
---|
| 491 | "", |
---|
| 492 | BranchStmt::Break |
---|
| 493 | ) |
---|
| 494 | } |
---|
| 495 | ) |
---|
| 496 | ); |
---|
| 497 | } |
---|
| 498 | |
---|
| 499 | if(waitfor->orelse.statement) { |
---|
| 500 | swtch->statements.push_back( |
---|
| 501 | new CaseStmt( |
---|
| 502 | noLabels, |
---|
[b18830e] | 503 | new ConstantExpr( Constant::from_int( -1 ) ), |
---|
[1dcd9554] | 504 | { |
---|
| 505 | waitfor->orelse.statement, |
---|
| 506 | new BranchStmt( |
---|
| 507 | noLabels, |
---|
| 508 | "", |
---|
| 509 | BranchStmt::Break |
---|
| 510 | ) |
---|
| 511 | } |
---|
| 512 | ) |
---|
| 513 | ); |
---|
| 514 | } |
---|
| 515 | |
---|
| 516 | stmt->push_back( swtch ); |
---|
| 517 | } |
---|
[9f5ecf5] | 518 | }; |
---|
| 519 | |
---|
| 520 | // Local Variables: // |
---|
| 521 | // mode: c // |
---|
| 522 | // tab-width: 4 // |
---|
| 523 | // End: // |
---|