source: src/GenPoly/Box.cc@ 78dd0da

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors ctor deferred_resn demangler enum forall-pointer-decay gc_noraii jacob/cs343-translation jenkins-sandbox memory new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new string with_gc
Last change on this file since 78dd0da was 78dd0da, checked in by Aaron Moss <a3moss@…>, 10 years ago

Switched size/align parameters over to use SymTab::Mangler in preparation for addition of generic types
  • Property mode set to 100644
File size: 48.3 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2015 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// Box.cc --
8//
9// Author : Richard C. Bilson
10// Created On : Mon May 18 07:44:20 2015
11// Last Modified By : Rob Schluntz
12// Last Modified On : Thu Nov 26 17:01:55 2015
13// Update Count : 191
14//
15
16#include <set>
17#include <stack>
18#include <string>
19#include <iterator>
20#include <algorithm>
21#include <cassert>
22
23#include "Box.h"
24#include "PolyMutator.h"
25#include "FindFunction.h"
26#include "ScrubTyVars.h"
27
28#include "Parser/ParseNode.h"
29
30#include "SynTree/Constant.h"
31#include "SynTree/Type.h"
32#include "SynTree/Expression.h"
33#include "SynTree/Initializer.h"
34#include "SynTree/Statement.h"
35#include "SynTree/Mutator.h"
36
37#include "ResolvExpr/TypeEnvironment.h"
38
39#include "SymTab/Mangler.h"
40
41#include "SemanticError.h"
42#include "UniqueName.h"
43#include "utility.h"
44
45#include <ext/functional> // temporary
46
47namespace GenPoly {
48 namespace {
49 const std::list<Label> noLabels;
50
51 FunctionType *makeAdapterType( FunctionType *adaptee, const TyVarMap &tyVars );
52
53 /// Replaces polymorphic return types with out-parameters, replaces calls to polymorphic functions with adapter calls as needed, and adds appropriate type variables to the function call
54 class Pass1 : public PolyMutator {
55 public:
56 Pass1();
57 virtual Expression *mutate( ApplicationExpr *appExpr );
58 virtual Expression *mutate( AddressExpr *addrExpr );
59 virtual Expression *mutate( UntypedExpr *expr );
60 virtual DeclarationWithType* mutate( FunctionDecl *functionDecl );
61 virtual TypeDecl *mutate( TypeDecl *typeDecl );
62 virtual Expression *mutate( CommaExpr *commaExpr );
63 virtual Expression *mutate( ConditionalExpr *condExpr );
64 virtual Statement *mutate(ReturnStmt *catchStmt);
65 virtual Type *mutate( PointerType *pointerType );
66 virtual Type *mutate( FunctionType *pointerType );
67
68 virtual void doBeginScope();
69 virtual void doEndScope();
70 private:
71 void passTypeVars( ApplicationExpr *appExpr, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars );
72 Expression *addRetParam( ApplicationExpr *appExpr, FunctionType *function, Type *retType, std::list< Expression *>::iterator &arg );
73 Expression *addPolyRetParam( ApplicationExpr *appExpr, FunctionType *function, std::string typeName, std::list< Expression *>::iterator &arg );
74 Expression *applyAdapter( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars );
75 void boxParam( Type *formal, Expression *&arg, const TyVarMap &exprTyVars );
76 void boxParams( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars );
77 void addInferredParams( ApplicationExpr *appExpr, FunctionType *functionType, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars );
78 void findAssignOps( const std::list< TypeDecl *> &forall );
79 void passAdapters( ApplicationExpr *appExpr, FunctionType *functionType, const TyVarMap &exprTyVars );
80 FunctionDecl *makeAdapter( FunctionType *adaptee, FunctionType *realType, const std::string &mangleName, const TyVarMap &tyVars );
81 Expression *handleIntrinsics( ApplicationExpr *appExpr );
82 ObjectDecl *makeTemporary( Type *type );
83
84 typedef std::map< std::string, DeclarationWithType *> AdapterMap;
85 std::map< std::string, DeclarationWithType *> assignOps;
86 std::stack< AdapterMap > adapters;
87 DeclarationWithType *retval;
88 bool useRetval;
89 UniqueName tempNamer;
90 };
91
92 /// Moves polymorphic returns in function types to pointer-type parameters, adds type size and assertion parameters to parameter lists as well
93 class Pass2 : public PolyMutator {
94 public:
95 template< typename DeclClass >
96 DeclClass *handleDecl( DeclClass *decl, Type *type );
97 virtual DeclarationWithType *mutate( FunctionDecl *functionDecl );
98 virtual ObjectDecl *mutate( ObjectDecl *objectDecl );
99 virtual TypeDecl *mutate( TypeDecl *typeDecl );
100 virtual TypedefDecl *mutate( TypedefDecl *typedefDecl );
101 virtual Type *mutate( PointerType *pointerType );
102 virtual Type *mutate( FunctionType *funcType );
103 private:
104 void addAdapters( FunctionType *functionType );
105
106 std::map< UniqueId, std::string > adapterName;
107 };
108
109 /// Replaces initialization of polymorphic values with alloca, declaration of dtype/ftype with appropriate void expression, and sizeof expressions of polymorphic types with the proper variable
110 class Pass3 : public PolyMutator {
111 public:
112 template< typename DeclClass >
113 DeclClass *handleDecl( DeclClass *decl, Type *type );
114 virtual DeclarationWithType *mutate( FunctionDecl *functionDecl );
115 virtual ObjectDecl *mutate( ObjectDecl *objectDecl );
116 virtual TypedefDecl *mutate( TypedefDecl *objectDecl );
117 virtual TypeDecl *mutate( TypeDecl *objectDecl );
118 virtual Statement *mutate( DeclStmt *declStmt );
119 virtual Type *mutate( PointerType *pointerType );
120 virtual Type *mutate( FunctionType *funcType );
121 private:
122 };
123
124 } // anonymous namespace
125
126 void printAllNotBuiltin( const std::list< Declaration *>& translationUnit, std::ostream &os ) {
127 for ( std::list< Declaration *>::const_iterator i = translationUnit.begin(); i != translationUnit.end(); ++i ) {
128 if ( ! LinkageSpec::isBuiltin( (*i)->get_linkage() ) ) {
129 (*i)->print( os );
130 os << std::endl;
131 } // if
132 } // for
133 }
134
135 void box( std::list< Declaration *>& translationUnit ) {
136 Pass1 pass1;
137 Pass2 pass2;
138 Pass3 pass3;
139 mutateAll( translationUnit, pass1 );
140 mutateAll( translationUnit, pass2 );
141 mutateAll( translationUnit, pass3 );
142 }
143
144 ////////////////////////////////////////// Pass1 ////////////////////////////////////////////////////
145
146 namespace {
147 std::string makePolyMonoSuffix( FunctionType * function, const TyVarMap &tyVars ) {
148 std::stringstream name;
149
150 // NOTE: this function previously used isPolyObj, which failed to produce
151 // the correct thing in some situations. It's not clear to me why this wasn't working.
152
153 // if the return type or a parameter type involved polymorphic types, then the adapter will need
154 // to take those polymorphic types as pointers. Therefore, there can be two different functions
155 // with the same mangled name, so we need to further mangle the names.
156 for ( std::list< DeclarationWithType *>::iterator retval = function->get_returnVals().begin(); retval != function->get_returnVals().end(); ++retval ) {
157 if ( isPolyVal( (*retval)->get_type(), tyVars ) ) {
158 name << "P";
159 } else {
160 name << "M";
161 }
162 }
163 name << "_";
164 std::list< DeclarationWithType *> &paramList = function->get_parameters();
165 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
166 if ( isPolyVal( (*arg)->get_type(), tyVars ) ) {
167 name << "P";
168 } else {
169 name << "M";
170 }
171 } // for
172 return name.str();
173 }
174
175 std::string mangleAdapterName( FunctionType * function, const TyVarMap &tyVars ) {
176 return SymTab::Mangler::mangle( function ) + makePolyMonoSuffix( function, tyVars );
177 }
178
179 std::string makeAdapterName( const std::string &mangleName ) {
180 return "_adapter" + mangleName;
181 }
182
183 Pass1::Pass1() : useRetval( false ), tempNamer( "_temp" ) {
184 adapters.push(AdapterMap());
185 }
186
187 bool checkAssignment( DeclarationWithType *decl, std::string &name ) {
188 if ( decl->get_name() == "?=?" ) {
189 if ( PointerType *ptrType = dynamic_cast< PointerType *>( decl->get_type() ) ) {
190 if ( FunctionType *funType = dynamic_cast< FunctionType *>( ptrType->get_base() ) ) {
191 if ( funType->get_parameters().size() == 2 ) {
192 if ( PointerType *pointer = dynamic_cast< PointerType *>( funType->get_parameters().front()->get_type() ) ) {
193 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( pointer->get_base() ) ) {
194 name = typeInst->get_name();
195 return true;
196 } // if
197 } // if
198 } // if
199 } // if
200 } // if
201 } // if
202 return false;
203 }
204
205 void Pass1::findAssignOps( const std::list< TypeDecl *> &forall ) {
206 // what if a nested function uses an assignment operator?
207 // assignOps.clear();
208 for ( std::list< TypeDecl *>::const_iterator i = forall.begin(); i != forall.end(); ++i ) {
209 for ( std::list< DeclarationWithType *>::const_iterator assert = (*i)->get_assertions().begin(); assert != (*i)->get_assertions().end(); ++assert ) {
210 std::string typeName;
211 if ( checkAssignment( *assert, typeName ) ) {
212 assignOps[ typeName ] = *assert;
213 } // if
214 } // for
215 } // for
216 }
217
218 DeclarationWithType *Pass1::mutate( FunctionDecl *functionDecl ) {
219 if ( functionDecl->get_statements() ) { // empty routine body ?
220 doBeginScope();
221 TyVarMap oldtyVars = scopeTyVars;
222 std::map< std::string, DeclarationWithType *> oldassignOps = assignOps;
223 DeclarationWithType *oldRetval = retval;
224 bool oldUseRetval = useRetval;
225
226 // process polymorphic return value
227 retval = 0;
228 std::string typeName;
229 if ( isPolyRet( functionDecl->get_functionType(), typeName ) && functionDecl->get_linkage() == LinkageSpec::Cforall ) {
230 retval = functionDecl->get_functionType()->get_returnVals().front();
231
232 // give names to unnamed return values
233 if ( retval->get_name() == "" ) {
234 retval->set_name( "_retparm" );
235 retval->set_linkage( LinkageSpec::C );
236 } // if
237 } // if
238
239 FunctionType *functionType = functionDecl->get_functionType();
240 makeTyVarMap( functionDecl->get_functionType(), scopeTyVars );
241 findAssignOps( functionDecl->get_functionType()->get_forall() );
242
243 std::list< DeclarationWithType *> &paramList = functionType->get_parameters();
244 std::list< FunctionType *> functions;
245 for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {
246 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {
247 findFunction( (*assert)->get_type(), functions, scopeTyVars, needsAdapter );
248 } // for
249 } // for
250 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
251 findFunction( (*arg)->get_type(), functions, scopeTyVars, needsAdapter );
252 } // for
253 AdapterMap & adapters = Pass1::adapters.top();
254 for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) {
255 std::string mangleName = mangleAdapterName( *funType, scopeTyVars );
256 if ( adapters.find( mangleName ) == adapters.end() ) {
257 std::string adapterName = makeAdapterName( mangleName );
258 adapters.insert( std::pair< std::string, DeclarationWithType *>( mangleName, new ObjectDecl( adapterName, DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), makeAdapterType( *funType, scopeTyVars ) ), 0 ) ) );
259 } // if
260 } // for
261
262 functionDecl->set_statements( functionDecl->get_statements()->acceptMutator( *this ) );
263
264 scopeTyVars = oldtyVars;
265 assignOps = oldassignOps;
266 // std::cerr << "end FunctionDecl: ";
267 // for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
268 // std::cerr << i->first << " ";
269 // }
270 // std::cerr << "\n";
271 retval = oldRetval;
272 useRetval = oldUseRetval;
273 doEndScope();
274 } // if
275 return functionDecl;
276 }
277
278 TypeDecl *Pass1::mutate( TypeDecl *typeDecl ) {
279/// std::cerr << "add " << typeDecl->get_name() << "\n";
280 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
281 return Mutator::mutate( typeDecl );
282 }
283
284 Expression *Pass1::mutate( CommaExpr *commaExpr ) {
285 bool oldUseRetval = useRetval;
286 useRetval = false;
287 commaExpr->set_arg1( maybeMutate( commaExpr->get_arg1(), *this ) );
288 useRetval = oldUseRetval;
289 commaExpr->set_arg2( maybeMutate( commaExpr->get_arg2(), *this ) );
290 return commaExpr;
291 }
292
293 Expression *Pass1::mutate( ConditionalExpr *condExpr ) {
294 bool oldUseRetval = useRetval;
295 useRetval = false;
296 condExpr->set_arg1( maybeMutate( condExpr->get_arg1(), *this ) );
297 useRetval = oldUseRetval;
298 condExpr->set_arg2( maybeMutate( condExpr->get_arg2(), *this ) );
299 condExpr->set_arg3( maybeMutate( condExpr->get_arg3(), *this ) );
300 return condExpr;
301
302 }
303
304 void Pass1::passTypeVars( ApplicationExpr *appExpr, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ) {
305 for ( TyVarMap::const_iterator tyParm = exprTyVars.begin(); tyParm != exprTyVars.end(); ++tyParm ) {
306 ResolvExpr::EqvClass eqvClass;
307 assert( env );
308 if ( tyParm->second == TypeDecl::Any ) {
309 Type *concrete = env->lookup( tyParm->first );
310 if ( concrete ) {
311 arg = appExpr->get_args().insert( arg, new SizeofExpr( concrete->clone() ) );
312 arg++;
313 arg = appExpr->get_args().insert( arg, new AlignofExpr( concrete->clone() ) );
314 arg++;
315 } else {
316 throw SemanticError( "unbound type variable in application ", appExpr );
317 } // if
318 } // if
319 } // for
320 }
321
322 ObjectDecl *Pass1::makeTemporary( Type *type ) {
323 ObjectDecl *newObj = new ObjectDecl( tempNamer.newName(), DeclarationNode::NoStorageClass, LinkageSpec::C, 0, type, 0 );
324 stmtsToAdd.push_back( new DeclStmt( noLabels, newObj ) );
325 return newObj;
326 }
327
328 TypeInstType *isPolyType( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) {
329 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
330 if ( env ) {
331 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
332 return isPolyType( newType, env, tyVars );
333 } // if
334 } // if
335 if ( tyVars.find( typeInst->get_name() ) != tyVars.end() ) {
336 return typeInst;
337 } else {
338 return 0;
339 } // if
340 } else {
341 return 0;
342 } // if
343 }
344
345 Expression *Pass1::addRetParam( ApplicationExpr *appExpr, FunctionType *function, Type *retType, std::list< Expression *>::iterator &arg ) {
346 if ( useRetval ) {
347 assert( retval );
348 arg = appExpr->get_args().insert( arg, new VariableExpr( retval ) );
349 arg++;
350 } else {
351 ObjectDecl *newObj = makeTemporary( retType->clone() );
352 Expression *paramExpr = new VariableExpr( newObj );
353 if ( ! isPolyType( newObj->get_type(), env, scopeTyVars ) ) {
354 paramExpr = new AddressExpr( paramExpr );
355 } // if
356 arg = appExpr->get_args().insert( arg, paramExpr );
357 arg++;
358/// stmtsToAdd.push_back( new ExprStmt( noLabels, appExpr ) );
359 CommaExpr *commaExpr = new CommaExpr( appExpr, new VariableExpr( newObj ) );
360 commaExpr->set_env( appExpr->get_env() );
361 appExpr->set_env( 0 );
362 return commaExpr;
363 } // if
364 return appExpr;
365 }
366
367 Expression *Pass1::addPolyRetParam( ApplicationExpr *appExpr, FunctionType *function, std::string typeName, std::list< Expression *>::iterator &arg ) {
368 ResolvExpr::EqvClass eqvClass;
369 assert( env );
370 Type *concrete = env->lookup( typeName );
371 if ( concrete == 0 ) {
372 throw SemanticError( "Unbound type variable " + typeName + " in ", appExpr );
373 } // if
374 return addRetParam( appExpr, function, concrete, arg );
375 }
376
377 Expression *Pass1::applyAdapter( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars ) {
378 Expression *ret = appExpr;
379 if ( ! function->get_returnVals().empty() && isPolyVal( function->get_returnVals().front()->get_type(), tyVars ) ) {
380 ret = addRetParam( appExpr, function, function->get_returnVals().front()->get_type(), arg );
381 } // if
382 std::string mangleName = mangleAdapterName( function, tyVars );
383 std::string adapterName = makeAdapterName( mangleName );
384
385 appExpr->get_args().push_front( appExpr->get_function() );
386 appExpr->set_function( new NameExpr( adapterName ) );
387
388 return ret;
389 }
390
391 void Pass1::boxParam( Type *param, Expression *&arg, const TyVarMap &exprTyVars ) {
392 assert( ! arg->get_results().empty() );
393/// if ( ! dynamic_cast< PointerType *>( arg->get_results().front() ) ) {
394 TypeInstType *typeInst = dynamic_cast< TypeInstType *>( param );
395 if ( typeInst && exprTyVars.find( typeInst->get_name() ) != exprTyVars.end() ) {
396 if ( dynamic_cast< TypeInstType *>( arg->get_results().front() ) ) {
397 // if the argument's type is a type parameter, we don't need to box again!
398 return;
399 } else if ( arg->get_results().front()->get_isLvalue() ) {
400 // VariableExpr and MemberExpr are lvalues
401 arg = new AddressExpr( arg );
402 } else {
403 ObjectDecl *newObj = new ObjectDecl( tempNamer.newName(), DeclarationNode::NoStorageClass, LinkageSpec::C, 0, arg->get_results().front()->clone(), 0 );
404 newObj->get_type()->get_qualifiers() = Type::Qualifiers(); // TODO: is this right???
405 stmtsToAdd.push_back( new DeclStmt( noLabels, newObj ) );
406 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) );
407 assign->get_args().push_back( new VariableExpr( newObj ) );
408 assign->get_args().push_back( arg );
409 stmtsToAdd.push_back( new ExprStmt( noLabels, assign ) );
410 arg = new AddressExpr( new VariableExpr( newObj ) );
411 } // if
412 } // if
413/// }
414 }
415
416 void addCast( Expression *&actual, Type *formal, const TyVarMap &tyVars ) {
417 Type *newType = formal->clone();
418 std::list< FunctionType *> functions;
419 // instead of functions needing adapters, this really ought to look for
420 // any function mentioning a polymorphic type
421 findAndReplaceFunction( newType, functions, tyVars, needsAdapter );
422 if ( ! functions.empty() ) {
423 actual = new CastExpr( actual, newType );
424 } else {
425 delete newType;
426 } // if
427 }
428
429 void Pass1::boxParams( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ) {
430/// std::cout << "function is ";
431/// function->print( std::cout );
432 for ( std::list< DeclarationWithType *>::const_iterator param = function->get_parameters().begin(); param != function->get_parameters().end(); ++param, ++arg ) {
433/// std::cout << "parameter is ";
434/// (*param)->print( std::fcout );
435/// std::cout << std::endl << "argument is ";
436/// (*arg)->print( std::cout );
437 assert( arg != appExpr->get_args().end() );
438 addCast( *arg, (*param)->get_type(), exprTyVars );
439 boxParam( (*param)->get_type(), *arg, exprTyVars );
440 } // for
441 }
442
443 void Pass1::addInferredParams( ApplicationExpr *appExpr, FunctionType *functionType, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars ) {
444 std::list< Expression *>::iterator cur = arg;
445 for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {
446 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {
447 InferredParams::const_iterator inferParam = appExpr->get_inferParams().find( (*assert)->get_uniqueId() );
448 assert( inferParam != appExpr->get_inferParams().end() && "NOTE: Explicit casts of polymorphic functions to compatible monomorphic functions are currently unsupported" );
449 Expression *newExpr = inferParam->second.expr->clone();
450 addCast( newExpr, (*assert)->get_type(), tyVars );
451 boxParam( (*assert)->get_type(), newExpr, tyVars );
452 appExpr->get_args().insert( cur, newExpr );
453 } // for
454 } // for
455 }
456
457 void makeRetParm( FunctionType *funcType ) {
458 DeclarationWithType *retParm = funcType->get_returnVals().front();
459
460 // make a new parameter that is a pointer to the type of the old return value
461 retParm->set_type( new PointerType( Type::Qualifiers(), retParm->get_type() ) );
462 funcType->get_parameters().push_front( retParm );
463
464 // we don't need the return value any more
465 funcType->get_returnVals().clear();
466 }
467
468 FunctionType *makeAdapterType( FunctionType *adaptee, const TyVarMap &tyVars ) {
469 // actually make the adapter type
470 FunctionType *adapter = adaptee->clone();
471 if ( ! adapter->get_returnVals().empty() && isPolyVal( adapter->get_returnVals().front()->get_type(), tyVars ) ) {
472 makeRetParm( adapter );
473 } // if
474 adapter->get_parameters().push_front( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), new FunctionType( Type::Qualifiers(), true ) ), 0 ) );
475 return adapter;
476 }
477
478 Expression *makeAdapterArg( DeclarationWithType *param, DeclarationWithType *arg, DeclarationWithType *realParam, const TyVarMap &tyVars ) {
479 assert( param );
480 assert( arg );
481/// std::cout << "arg type is ";
482/// arg->get_type()->print( std::cout );
483/// std::cout << "param type is ";
484/// param->get_type()->print( std::cout );
485/// std::cout << " tyVars are: ";
486/// printTyVarMap( std::cout, tyVars );
487 if ( isPolyVal( realParam->get_type(), tyVars ) ) {
488/// if ( dynamic_cast< PointerType *>( arg->get_type() ) ) {
489/// return new CastExpr( new VariableExpr( param ), arg->get_type()->clone() );
490/// } else {
491 if ( dynamic_cast<TypeInstType *>(arg->get_type()) == NULL ) {
492 UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) );
493 deref->get_args().push_back( new CastExpr( new VariableExpr( param ), new PointerType( Type::Qualifiers(), arg->get_type()->clone() ) ) );
494 deref->get_results().push_back( arg->get_type()->clone() );
495 return deref;
496 } // if
497/// }
498 } // if
499 return new VariableExpr( param );
500 }
501
502 void addAdapterParams( ApplicationExpr *adapteeApp, std::list< DeclarationWithType *>::iterator arg, std::list< DeclarationWithType *>::iterator param, std::list< DeclarationWithType *>::iterator paramEnd, std::list< DeclarationWithType *>::iterator realParam, const TyVarMap &tyVars ) {
503 UniqueName paramNamer( "_p" );
504 for ( ; param != paramEnd; ++param, ++arg, ++realParam ) {
505 if ( (*param)->get_name() == "" ) {
506 (*param)->set_name( paramNamer.newName() );
507 (*param)->set_linkage( LinkageSpec::C );
508 } // if
509 adapteeApp->get_args().push_back( makeAdapterArg( *param, *arg, *realParam, tyVars ) );
510 } // for
511 }
512
513
514
515 FunctionDecl *Pass1::makeAdapter( FunctionType *adaptee, FunctionType *realType, const std::string &mangleName, const TyVarMap &tyVars ) {
516 FunctionType *adapterType = makeAdapterType( adaptee, tyVars );
517 adapterType = ScrubTyVars::scrub( adapterType, tyVars );
518 DeclarationWithType *adapteeDecl = adapterType->get_parameters().front();
519 adapteeDecl->set_name( "_adaptee" );
520 ApplicationExpr *adapteeApp = new ApplicationExpr( new CastExpr( new VariableExpr( adapteeDecl ), new PointerType( Type::Qualifiers(), realType ) ) );
521 Statement *bodyStmt;
522
523 std::list< TypeDecl *>::iterator tyArg = realType->get_forall().begin();
524 std::list< TypeDecl *>::iterator tyParam = adapterType->get_forall().begin();
525 std::list< TypeDecl *>::iterator realTyParam = adaptee->get_forall().begin();
526 for ( ; tyParam != adapterType->get_forall().end(); ++tyArg, ++tyParam, ++realTyParam ) {
527 assert( tyArg != realType->get_forall().end() );
528 std::list< DeclarationWithType *>::iterator assertArg = (*tyArg)->get_assertions().begin();
529 std::list< DeclarationWithType *>::iterator assertParam = (*tyParam)->get_assertions().begin();
530 std::list< DeclarationWithType *>::iterator realAssertParam = (*realTyParam)->get_assertions().begin();
531 for ( ; assertParam != (*tyParam)->get_assertions().end(); ++assertArg, ++assertParam, ++realAssertParam ) {
532 assert( assertArg != (*tyArg)->get_assertions().end() );
533 adapteeApp->get_args().push_back( makeAdapterArg( *assertParam, *assertArg, *realAssertParam, tyVars ) );
534 } // for
535 } // for
536
537 std::list< DeclarationWithType *>::iterator arg = realType->get_parameters().begin();
538 std::list< DeclarationWithType *>::iterator param = adapterType->get_parameters().begin();
539 std::list< DeclarationWithType *>::iterator realParam = adaptee->get_parameters().begin();
540 param++; // skip adaptee parameter
541 if ( realType->get_returnVals().empty() ) {
542 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
543 bodyStmt = new ExprStmt( noLabels, adapteeApp );
544 } else if ( isPolyVal( adaptee->get_returnVals().front()->get_type(), tyVars ) ) {
545 if ( (*param)->get_name() == "" ) {
546 (*param)->set_name( "_ret" );
547 (*param)->set_linkage( LinkageSpec::C );
548 } // if
549 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) );
550 UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) );
551 deref->get_args().push_back( new CastExpr( new VariableExpr( *param++ ), new PointerType( Type::Qualifiers(), realType->get_returnVals().front()->get_type()->clone() ) ) );
552 assign->get_args().push_back( deref );
553 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
554 assign->get_args().push_back( adapteeApp );
555 bodyStmt = new ExprStmt( noLabels, assign );
556 } else {
557 // adapter for a function that returns a monomorphic value
558 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
559 bodyStmt = new ReturnStmt( noLabels, adapteeApp );
560 } // if
561 CompoundStmt *adapterBody = new CompoundStmt( noLabels );
562 adapterBody->get_kids().push_back( bodyStmt );
563 std::string adapterName = makeAdapterName( mangleName );
564 return new FunctionDecl( adapterName, DeclarationNode::NoStorageClass, LinkageSpec::C, adapterType, adapterBody, false, false );
565 }
566
567 void Pass1::passAdapters( ApplicationExpr * appExpr, FunctionType * functionType, const TyVarMap & exprTyVars ) {
568 // collect a list of function types passed as parameters or implicit parameters (assertions)
569 std::list< DeclarationWithType *> &paramList = functionType->get_parameters();
570 std::list< FunctionType *> functions;
571 for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {
572 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {
573 findFunction( (*assert)->get_type(), functions, exprTyVars, needsAdapter );
574 } // for
575 } // for
576 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
577 findFunction( (*arg)->get_type(), functions, exprTyVars, needsAdapter );
578 } // for
579
580 // parameter function types for which an appropriate adapter has been generated. we cannot use the types
581 // after applying substitutions, since two different parameter types may be unified to the same type
582 std::set< std::string > adaptersDone;
583
584 for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) {
585 FunctionType *originalFunction = (*funType)->clone();
586 FunctionType *realFunction = (*funType)->clone();
587 std::string mangleName = SymTab::Mangler::mangle( realFunction );
588
589 // only attempt to create an adapter or pass one as a parameter if we haven't already done so for this
590 // pre-substitution parameter function type.
591 if ( adaptersDone.find( mangleName ) == adaptersDone.end() ) {
592 adaptersDone.insert( adaptersDone.begin(), mangleName );
593
594 // apply substitution to type variables to figure out what the adapter's type should look like
595 assert( env );
596 env->apply( realFunction );
597 mangleName = SymTab::Mangler::mangle( realFunction );
598 mangleName += makePolyMonoSuffix( originalFunction, exprTyVars );
599
600 AdapterMap & adapters = Pass1::adapters.top();
601 AdapterMap::iterator adapter = adapters.find( mangleName );
602 if ( adapter == adapters.end() ) {
603 // adapter has not been created yet in the current scope, so define it
604 FunctionDecl *newAdapter = makeAdapter( *funType, realFunction, mangleName, exprTyVars );
605 adapter = adapters.insert( adapters.begin(), std::pair< std::string, DeclarationWithType *>( mangleName, newAdapter ) );
606 stmtsToAdd.push_back( new DeclStmt( noLabels, newAdapter ) );
607 } // if
608 assert( adapter != adapters.end() );
609
610 // add the appropriate adapter as a parameter
611 appExpr->get_args().push_front( new VariableExpr( adapter->second ) );
612 } // if
613 } // for
614 } // passAdapters
615
616 TypeInstType *isPolyPtr( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) {
617 if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) {
618 return isPolyType( ptr->get_base(), env, tyVars );
619 } else if ( env ) {
620 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
621 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
622 return isPolyPtr( newType, env, tyVars );
623 } // if
624 } // if
625 } // if
626 return 0;
627 }
628
629 TypeInstType *isPolyPtrPtr( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) {
630 if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) {
631 return isPolyPtr( ptr->get_base(), env, tyVars );
632 } else if ( env ) {
633 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
634 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
635 return isPolyPtrPtr( newType, env, tyVars );
636 } // if
637 } // if
638 } // if
639 return 0;
640 }
641
642 Expression *makeIncrDecrExpr( ApplicationExpr *appExpr, Type *polyType, bool isIncr ) {
643 NameExpr *opExpr;
644 if ( isIncr ) {
645 opExpr = new NameExpr( "?+=?" );
646 } else {
647 opExpr = new NameExpr( "?-=?" );
648 } // if
649 UntypedExpr *addAssign = new UntypedExpr( opExpr );
650 if ( AddressExpr *address = dynamic_cast< AddressExpr *>( appExpr->get_args().front() ) ) {
651 addAssign->get_args().push_back( address->get_arg() );
652 } else {
653 addAssign->get_args().push_back( appExpr->get_args().front() );
654 } // if
655 addAssign->get_args().push_back( new NameExpr( sizeofName( polyType ) ) );
656 addAssign->get_results().front() = appExpr->get_results().front()->clone();
657 if ( appExpr->get_env() ) {
658 addAssign->set_env( appExpr->get_env() );
659 appExpr->set_env( 0 );
660 } // if
661 appExpr->get_args().clear();
662 delete appExpr;
663 return addAssign;
664 }
665
666 Expression *Pass1::handleIntrinsics( ApplicationExpr *appExpr ) {
667 if ( VariableExpr *varExpr = dynamic_cast< VariableExpr *>( appExpr->get_function() ) ) {
668 if ( varExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic ) {
669 if ( varExpr->get_var()->get_name() == "?[?]" ) {
670 assert( ! appExpr->get_results().empty() );
671 assert( appExpr->get_args().size() == 2 );
672 TypeInstType *typeInst1 = isPolyPtr( appExpr->get_args().front()->get_results().front(), env, scopeTyVars );
673 TypeInstType *typeInst2 = isPolyPtr( appExpr->get_args().back()->get_results().front(), env, scopeTyVars );
674 assert( ! typeInst1 || ! typeInst2 );
675 UntypedExpr *ret = 0;
676 if ( typeInst1 || typeInst2 ) {
677 ret = new UntypedExpr( new NameExpr( "?+?" ) );
678 } // if
679 if ( typeInst1 ) {
680 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
681 multiply->get_args().push_back( appExpr->get_args().back() );
682 multiply->get_args().push_back( new NameExpr( sizeofName( typeInst1 ) ) );
683 ret->get_args().push_back( appExpr->get_args().front() );
684 ret->get_args().push_back( multiply );
685 } else if ( typeInst2 ) {
686 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
687 multiply->get_args().push_back( appExpr->get_args().front() );
688 multiply->get_args().push_back( new NameExpr( sizeofName( typeInst2 ) ) );
689 ret->get_args().push_back( multiply );
690 ret->get_args().push_back( appExpr->get_args().back() );
691 } // if
692 if ( typeInst1 || typeInst2 ) {
693 ret->get_results().push_front( appExpr->get_results().front()->clone() );
694 if ( appExpr->get_env() ) {
695 ret->set_env( appExpr->get_env() );
696 appExpr->set_env( 0 );
697 } // if
698 appExpr->get_args().clear();
699 delete appExpr;
700 return ret;
701 } // if
702 } else if ( varExpr->get_var()->get_name() == "*?" ) {
703 assert( ! appExpr->get_results().empty() );
704 assert( ! appExpr->get_args().empty() );
705 if ( isPolyType( appExpr->get_results().front(), env, scopeTyVars ) ) {
706 Expression *ret = appExpr->get_args().front();
707 delete ret->get_results().front();
708 ret->get_results().front() = appExpr->get_results().front()->clone();
709 if ( appExpr->get_env() ) {
710 ret->set_env( appExpr->get_env() );
711 appExpr->set_env( 0 );
712 } // if
713 appExpr->get_args().clear();
714 delete appExpr;
715 return ret;
716 } // if
717 } else if ( varExpr->get_var()->get_name() == "?++" || varExpr->get_var()->get_name() == "?--" ) {
718 assert( ! appExpr->get_results().empty() );
719 assert( appExpr->get_args().size() == 1 );
720 if ( TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars ) ) {
721 Type *tempType = appExpr->get_results().front()->clone();
722 if ( env ) {
723 env->apply( tempType );
724 } // if
725 ObjectDecl *newObj = makeTemporary( tempType );
726 VariableExpr *tempExpr = new VariableExpr( newObj );
727 UntypedExpr *assignExpr = new UntypedExpr( new NameExpr( "?=?" ) );
728 assignExpr->get_args().push_back( tempExpr->clone() );
729 if ( AddressExpr *address = dynamic_cast< AddressExpr *>( appExpr->get_args().front() ) ) {
730 assignExpr->get_args().push_back( address->get_arg()->clone() );
731 } else {
732 assignExpr->get_args().push_back( appExpr->get_args().front()->clone() );
733 } // if
734 CommaExpr *firstComma = new CommaExpr( assignExpr, makeIncrDecrExpr( appExpr, typeInst, varExpr->get_var()->get_name() == "?++" ) );
735 return new CommaExpr( firstComma, tempExpr );
736 } // if
737 } else if ( varExpr->get_var()->get_name() == "++?" || varExpr->get_var()->get_name() == "--?" ) {
738 assert( ! appExpr->get_results().empty() );
739 assert( appExpr->get_args().size() == 1 );
740 if ( TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars ) ) {
741 return makeIncrDecrExpr( appExpr, typeInst, varExpr->get_var()->get_name() == "++?" );
742 } // if
743 } else if ( varExpr->get_var()->get_name() == "?+?" || varExpr->get_var()->get_name() == "?-?" ) {
744 assert( ! appExpr->get_results().empty() );
745 assert( appExpr->get_args().size() == 2 );
746 TypeInstType *typeInst1 = isPolyPtr( appExpr->get_args().front()->get_results().front(), env, scopeTyVars );
747 TypeInstType *typeInst2 = isPolyPtr( appExpr->get_args().back()->get_results().front(), env, scopeTyVars );
748 if ( typeInst1 && typeInst2 ) {
749 UntypedExpr *divide = new UntypedExpr( new NameExpr( "?/?" ) );
750 divide->get_args().push_back( appExpr );
751 divide->get_args().push_back( new NameExpr( sizeofName( typeInst1 ) ) );
752 divide->get_results().push_front( appExpr->get_results().front()->clone() );
753 if ( appExpr->get_env() ) {
754 divide->set_env( appExpr->get_env() );
755 appExpr->set_env( 0 );
756 } // if
757 return divide;
758 } else if ( typeInst1 ) {
759 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
760 multiply->get_args().push_back( appExpr->get_args().back() );
761 multiply->get_args().push_back( new NameExpr( sizeofName( typeInst1 ) ) );
762 appExpr->get_args().back() = multiply;
763 } else if ( typeInst2 ) {
764 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
765 multiply->get_args().push_back( appExpr->get_args().front() );
766 multiply->get_args().push_back( new NameExpr( sizeofName( typeInst2 ) ) );
767 appExpr->get_args().front() = multiply;
768 } // if
769 } else if ( varExpr->get_var()->get_name() == "?+=?" || varExpr->get_var()->get_name() == "?-=?" ) {
770 assert( ! appExpr->get_results().empty() );
771 assert( appExpr->get_args().size() == 2 );
772 TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars );
773 if ( typeInst ) {
774 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
775 multiply->get_args().push_back( appExpr->get_args().back() );
776 multiply->get_args().push_back( new NameExpr( sizeofName( typeInst ) ) );
777 appExpr->get_args().back() = multiply;
778 } // if
779 } // if
780 return appExpr;
781 } // if
782 } // if
783 return 0;
784 }
785
786 Expression *Pass1::mutate( ApplicationExpr *appExpr ) {
787 // std::cerr << "mutate appExpr: ";
788 // for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
789 // std::cerr << i->first << " ";
790 // }
791 // std::cerr << "\n";
792 bool oldUseRetval = useRetval;
793 useRetval = false;
794 appExpr->get_function()->acceptMutator( *this );
795 mutateAll( appExpr->get_args(), *this );
796 useRetval = oldUseRetval;
797
798 assert( ! appExpr->get_function()->get_results().empty() );
799 PointerType *pointer = dynamic_cast< PointerType *>( appExpr->get_function()->get_results().front() );
800 assert( pointer );
801 FunctionType *function = dynamic_cast< FunctionType *>( pointer->get_base() );
802 assert( function );
803
804 if ( Expression *newExpr = handleIntrinsics( appExpr ) ) {
805 return newExpr;
806 } // if
807
808 Expression *ret = appExpr;
809
810 std::list< Expression *>::iterator arg = appExpr->get_args().begin();
811 std::list< Expression *>::iterator paramBegin = appExpr->get_args().begin();
812
813 std::string typeName;
814 if ( isPolyRet( function, typeName ) ) {
815 ret = addPolyRetParam( appExpr, function, typeName, arg );
816 } else if ( needsAdapter( function, scopeTyVars ) ) {
817 // std::cerr << "needs adapter: ";
818 // for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
819 // std::cerr << i->first << " ";
820 // }
821 // std::cerr << "\n";
822 // change the application so it calls the adapter rather than the passed function
823 ret = applyAdapter( appExpr, function, arg, scopeTyVars );
824 } // if
825 arg = appExpr->get_args().begin();
826
827 TyVarMap exprTyVars;
828 makeTyVarMap( function, exprTyVars );
829
830 passTypeVars( appExpr, arg, exprTyVars );
831 addInferredParams( appExpr, function, arg, exprTyVars );
832
833 arg = paramBegin;
834
835 boxParams( appExpr, function, arg, exprTyVars );
836
837 passAdapters( appExpr, function, exprTyVars );
838
839 return ret;
840 }
841
842 Expression *Pass1::mutate( UntypedExpr *expr ) {
843 if ( ! expr->get_results().empty() && isPolyType( expr->get_results().front(), env, scopeTyVars ) ) {
844 if ( NameExpr *name = dynamic_cast< NameExpr *>( expr->get_function() ) ) {
845 if ( name->get_name() == "*?" ) {
846 Expression *ret = expr->get_args().front();
847 expr->get_args().clear();
848 delete expr;
849 return ret->acceptMutator( *this );
850 } // if
851 } // if
852 } // if
853 return PolyMutator::mutate( expr );
854 }
855
856 Expression *Pass1::mutate( AddressExpr *addrExpr ) {
857 assert( ! addrExpr->get_arg()->get_results().empty() );
858 addrExpr->set_arg( mutateExpression( addrExpr->get_arg() ) );
859 if ( isPolyType( addrExpr->get_arg()->get_results().front(), env, scopeTyVars ) ) {
860 Expression *ret = addrExpr->get_arg();
861 delete ret->get_results().front();
862 ret->get_results().front() = addrExpr->get_results().front()->clone();
863 addrExpr->set_arg( 0 );
864 delete addrExpr;
865 return ret;
866 } else {
867 return addrExpr;
868 } // if
869 }
870
871 Statement * Pass1::mutate(ReturnStmt *retStmt) {
872 // a cast expr on a polymorphic return value is either redundant or invalid
873 while ( CastExpr *castExpr = dynamic_cast< CastExpr *>( retStmt->get_expr() ) ) {
874 retStmt->set_expr( castExpr->get_arg() );
875 retStmt->get_expr()->set_env( castExpr->get_env() );
876 castExpr->set_env( 0 );
877 castExpr->set_arg( 0 );
878 delete castExpr;
879 }
880 if ( retval && retStmt->get_expr() ) {
881 assert( ! retStmt->get_expr()->get_results().empty() );
882 if ( retStmt->get_expr()->get_results().front()->get_isLvalue() ) {
883/// retStmt->set_expr( mutateExpression( retStmt->get_expr() ) );
884 TypeInstType *typeInst = dynamic_cast< TypeInstType *>( retval->get_type() );
885 assert( typeInst );
886 std::map< std::string, DeclarationWithType *>::const_iterator assignIter = assignOps.find( typeInst->get_name() );
887 if ( assignIter == assignOps.end() ) {
888 throw SemanticError( "Attempt to return dtype or ftype object in ", retStmt->get_expr() );
889 } // if
890 ApplicationExpr *assignExpr = new ApplicationExpr( new VariableExpr( assignIter->second ) );
891 Expression *retParm = new NameExpr( retval->get_name() );
892 retParm->get_results().push_back( new PointerType( Type::Qualifiers(), retval->get_type()->clone() ) );
893 assignExpr->get_args().push_back( retParm );
894 assignExpr->get_args().push_back( retStmt->get_expr() );
895 stmtsToAdd.push_back( new ExprStmt( noLabels, mutateExpression( assignExpr ) ) );
896 } else {
897 useRetval = true;
898 stmtsToAdd.push_back( new ExprStmt( noLabels, mutateExpression( retStmt->get_expr() ) ) );
899 useRetval = false;
900 } // if
901 retStmt->set_expr( 0 );
902 } else {
903 retStmt->set_expr( mutateExpression( retStmt->get_expr() ) );
904 } // if
905 return retStmt;
906 }
907
908 Type * Pass1::mutate( PointerType *pointerType ) {
909 TyVarMap oldtyVars = scopeTyVars;
910 makeTyVarMap( pointerType, scopeTyVars );
911
912 Type *ret = Mutator::mutate( pointerType );
913
914 scopeTyVars = oldtyVars;
915 return ret;
916 }
917
918 Type * Pass1::mutate( FunctionType *functionType ) {
919 TyVarMap oldtyVars = scopeTyVars;
920 makeTyVarMap( functionType, scopeTyVars );
921
922 Type *ret = Mutator::mutate( functionType );
923
924 scopeTyVars = oldtyVars;
925 return ret;
926 }
927
928 void Pass1::doBeginScope() {
929 // push a copy of the current map
930 adapters.push(adapters.top());
931 }
932
933 void Pass1::doEndScope() {
934 adapters.pop();
935 }
936
937////////////////////////////////////////// Pass2 ////////////////////////////////////////////////////
938
939 void Pass2::addAdapters( FunctionType *functionType ) {
940 std::list< DeclarationWithType *> &paramList = functionType->get_parameters();
941 std::list< FunctionType *> functions;
942 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
943 Type *orig = (*arg)->get_type();
944 findAndReplaceFunction( orig, functions, scopeTyVars, needsAdapter );
945 (*arg)->set_type( orig );
946 }
947 std::set< std::string > adaptersDone;
948 for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) {
949 std::string mangleName = mangleAdapterName( *funType, scopeTyVars );
950 if ( adaptersDone.find( mangleName ) == adaptersDone.end() ) {
951 std::string adapterName = makeAdapterName( mangleName );
952 paramList.push_front( new ObjectDecl( adapterName, DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), makeAdapterType( *funType, scopeTyVars ) ), 0 ) );
953 adaptersDone.insert( adaptersDone.begin(), mangleName );
954 }
955 }
956/// deleteAll( functions );
957 }
958
959 template< typename DeclClass >
960 DeclClass * Pass2::handleDecl( DeclClass *decl, Type *type ) {
961 DeclClass *ret = static_cast< DeclClass *>( Mutator::mutate( decl ) );
962
963 return ret;
964 }
965
966 DeclarationWithType * Pass2::mutate( FunctionDecl *functionDecl ) {
967 return handleDecl( functionDecl, functionDecl->get_functionType() );
968 }
969
970 ObjectDecl * Pass2::mutate( ObjectDecl *objectDecl ) {
971 return handleDecl( objectDecl, objectDecl->get_type() );
972 }
973
974 TypeDecl * Pass2::mutate( TypeDecl *typeDecl ) {
975 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
976 if ( typeDecl->get_base() ) {
977 return handleDecl( typeDecl, typeDecl->get_base() );
978 } else {
979 return Mutator::mutate( typeDecl );
980 }
981 }
982
983 TypedefDecl * Pass2::mutate( TypedefDecl *typedefDecl ) {
984 return handleDecl( typedefDecl, typedefDecl->get_base() );
985 }
986
987 Type * Pass2::mutate( PointerType *pointerType ) {
988 TyVarMap oldtyVars = scopeTyVars;
989 makeTyVarMap( pointerType, scopeTyVars );
990
991 Type *ret = Mutator::mutate( pointerType );
992
993 scopeTyVars = oldtyVars;
994 return ret;
995 }
996
997 Type *Pass2::mutate( FunctionType *funcType ) {
998 TyVarMap oldtyVars = scopeTyVars;
999 makeTyVarMap( funcType, scopeTyVars );
1000
1001 std::string typeName;
1002 if ( isPolyRet( funcType, typeName ) ) {
1003 DeclarationWithType *ret = funcType->get_returnVals().front();
1004 ret->set_type( new PointerType( Type::Qualifiers(), ret->get_type() ) );
1005 funcType->get_parameters().push_front( ret );
1006 funcType->get_returnVals().pop_front();
1007 }
1008
1009 std::list< DeclarationWithType *>::iterator last = funcType->get_parameters().begin();
1010 std::list< DeclarationWithType *> inferredParams;
1011 ObjectDecl newObj( "", DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ), 0 );
1012// ObjectDecl *newFunPtr = new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), new FunctionType( Type::Qualifiers(), true ) ), 0 );
1013 for ( std::list< TypeDecl *>::const_iterator tyParm = funcType->get_forall().begin(); tyParm != funcType->get_forall().end(); ++tyParm ) {
1014 ObjectDecl *sizeParm, *alignParm;
1015 // add all size and alignment parameters to parameter list
1016 if ( (*tyParm)->get_kind() == TypeDecl::Any ) {
1017 TypeInstType parmType( Type::Qualifiers(), (*tyParm)->get_name(), *tyParm );
1018
1019 sizeParm = newObj.clone();
1020 sizeParm->set_name( sizeofName( &parmType ) );
1021 last = funcType->get_parameters().insert( last, sizeParm );
1022 ++last;
1023
1024 alignParm = newObj.clone();
1025 alignParm->set_name( alignofName( &parmType ) );
1026 last = funcType->get_parameters().insert( last, alignParm );
1027 ++last;
1028 }
1029 // move all assertions into parameter list
1030 for ( std::list< DeclarationWithType *>::iterator assert = (*tyParm)->get_assertions().begin(); assert != (*tyParm)->get_assertions().end(); ++assert ) {
1031// *assert = (*assert)->acceptMutator( *this );
1032 inferredParams.push_back( *assert );
1033 }
1034 (*tyParm)->get_assertions().clear();
1035 }
1036 funcType->get_parameters().splice( last, inferredParams );
1037 addAdapters( funcType );
1038 mutateAll( funcType->get_returnVals(), *this );
1039 mutateAll( funcType->get_parameters(), *this );
1040
1041 scopeTyVars = oldtyVars;
1042 return funcType;
1043 }
1044
1045////////////////////////////////////////// Pass3 ////////////////////////////////////////////////////
1046
1047 template< typename DeclClass >
1048 DeclClass * Pass3::handleDecl( DeclClass *decl, Type *type ) {
1049 TyVarMap oldtyVars = scopeTyVars;
1050 makeTyVarMap( type, scopeTyVars );
1051
1052 DeclClass *ret = static_cast< DeclClass *>( Mutator::mutate( decl ) );
1053 ScrubTyVars::scrub( decl, scopeTyVars );
1054
1055 scopeTyVars = oldtyVars;
1056 return ret;
1057 }
1058
1059 ObjectDecl * Pass3::mutate( ObjectDecl *objectDecl ) {
1060 return handleDecl( objectDecl, objectDecl->get_type() );
1061 }
1062
1063 DeclarationWithType * Pass3::mutate( FunctionDecl *functionDecl ) {
1064 return handleDecl( functionDecl, functionDecl->get_functionType() );
1065 }
1066
1067 TypedefDecl * Pass3::mutate( TypedefDecl *typedefDecl ) {
1068 return handleDecl( typedefDecl, typedefDecl->get_base() );
1069 }
1070
1071 TypeDecl * Pass3::mutate( TypeDecl *typeDecl ) {
1072// Initializer *init = 0;
1073// std::list< Expression *> designators;
1074// scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
1075// if ( typeDecl->get_base() ) {
1076// init = new SimpleInit( new SizeofExpr( handleDecl( typeDecl, typeDecl->get_base() ) ), designators );
1077// }
1078// return new ObjectDecl( typeDecl->get_name(), Declaration::Extern, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::UnsignedInt ), init );
1079
1080 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
1081 return Mutator::mutate( typeDecl );
1082 }
1083
1084 Type * Pass3::mutate( PointerType *pointerType ) {
1085 TyVarMap oldtyVars = scopeTyVars;
1086 makeTyVarMap( pointerType, scopeTyVars );
1087
1088 Type *ret = Mutator::mutate( pointerType );
1089
1090 scopeTyVars = oldtyVars;
1091 return ret;
1092 }
1093
1094 Type * Pass3::mutate( FunctionType *functionType ) {
1095 TyVarMap oldtyVars = scopeTyVars;
1096 makeTyVarMap( functionType, scopeTyVars );
1097
1098 Type *ret = Mutator::mutate( functionType );
1099
1100 scopeTyVars = oldtyVars;
1101 return ret;
1102 }
1103
1104 Statement *Pass3::mutate( DeclStmt *declStmt ) {
1105 if ( ObjectDecl *objectDecl = dynamic_cast< ObjectDecl *>( declStmt->get_decl() ) ) {
1106 if ( isPolyVal( objectDecl->get_type(), scopeTyVars ) ) {
1107 // change initialization of a polymorphic value object
1108 // to allocate storage with alloca
1109 TypeInstType *typeInst = dynamic_cast< TypeInstType *>( objectDecl->get_type() );
1110 assert( typeInst );
1111 UntypedExpr *alloc = new UntypedExpr( new NameExpr( "__builtin_alloca" ) );
1112 alloc->get_args().push_back( new NameExpr( sizeofName( typeInst ) ) );
1113
1114 delete objectDecl->get_init();
1115
1116 std::list<Expression*> designators;
1117 objectDecl->set_init( new SingleInit( alloc, designators ) );
1118 }
1119 }
1120 return Mutator::mutate( declStmt );
1121 }
1122 } // anonymous namespace
1123} // namespace GenPoly
1124
1125// Local Variables: //
1126// tab-width: 4 //
1127// mode: c++ //
1128// compile-command: "make install" //
1129// End: //
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