source: src/GenPoly/Box.cc@ ffad73a

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 ffad73a was ffad73a, checked in by Aaron Moss <a3moss@…>, 10 years ago

Refactored isPolyType and friends to account for polymorphic generic types
  • Property mode set to 100644
File size: 46.5 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 ( isPolyType( (*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 ( isPolyType( (*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 Expression *Pass1::addRetParam( ApplicationExpr *appExpr, FunctionType *function, Type *retType, std::list< Expression *>::iterator &arg ) {
329 if ( useRetval ) {
330 assert( retval );
331 arg = appExpr->get_args().insert( arg, new VariableExpr( retval ) );
332 arg++;
333 } else {
334 ObjectDecl *newObj = makeTemporary( retType->clone() );
335 Expression *paramExpr = new VariableExpr( newObj );
336 if ( ! isPolyType( newObj->get_type(), scopeTyVars, env ) ) {
337 paramExpr = new AddressExpr( paramExpr );
338 } // if
339 arg = appExpr->get_args().insert( arg, paramExpr );
340 arg++;
341/// stmtsToAdd.push_back( new ExprStmt( noLabels, appExpr ) );
342 CommaExpr *commaExpr = new CommaExpr( appExpr, new VariableExpr( newObj ) );
343 commaExpr->set_env( appExpr->get_env() );
344 appExpr->set_env( 0 );
345 return commaExpr;
346 } // if
347 return appExpr;
348 }
349
350 Expression *Pass1::addPolyRetParam( ApplicationExpr *appExpr, FunctionType *function, std::string typeName, std::list< Expression *>::iterator &arg ) {
351 ResolvExpr::EqvClass eqvClass;
352 assert( env );
353 Type *concrete = env->lookup( typeName );
354 if ( concrete == 0 ) {
355 throw SemanticError( "Unbound type variable " + typeName + " in ", appExpr );
356 } // if
357 return addRetParam( appExpr, function, concrete, arg );
358 }
359
360 Expression *Pass1::applyAdapter( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars ) {
361 Expression *ret = appExpr;
362 if ( ! function->get_returnVals().empty() && isPolyType( function->get_returnVals().front()->get_type(), tyVars ) ) {
363 ret = addRetParam( appExpr, function, function->get_returnVals().front()->get_type(), arg );
364 } // if
365 std::string mangleName = mangleAdapterName( function, tyVars );
366 std::string adapterName = makeAdapterName( mangleName );
367
368 appExpr->get_args().push_front( appExpr->get_function() );
369 appExpr->set_function( new NameExpr( adapterName ) );
370
371 return ret;
372 }
373
374 void Pass1::boxParam( Type *param, Expression *&arg, const TyVarMap &exprTyVars ) {
375 assert( ! arg->get_results().empty() );
376// if ( ! dynamic_cast< PointerType *>( arg->get_results().front() ) ) {
377 TypeInstType *typeInst = dynamic_cast< TypeInstType *>( param );
378 if ( typeInst && exprTyVars.find( typeInst->get_name() ) != exprTyVars.end() ) {
379 if ( dynamic_cast< TypeInstType *>( arg->get_results().front() ) ) {
380 // if the argument's type is a type parameter, we don't need to box again!
381 return;
382 } else if ( arg->get_results().front()->get_isLvalue() ) {
383 // VariableExpr and MemberExpr are lvalues
384 arg = new AddressExpr( arg );
385 } else {
386 ObjectDecl *newObj = new ObjectDecl( tempNamer.newName(), DeclarationNode::NoStorageClass, LinkageSpec::C, 0, arg->get_results().front()->clone(), 0 );
387 newObj->get_type()->get_qualifiers() = Type::Qualifiers(); // TODO: is this right???
388 stmtsToAdd.push_back( new DeclStmt( noLabels, newObj ) );
389 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) );
390 assign->get_args().push_back( new VariableExpr( newObj ) );
391 assign->get_args().push_back( arg );
392 stmtsToAdd.push_back( new ExprStmt( noLabels, assign ) );
393 arg = new AddressExpr( new VariableExpr( newObj ) );
394 } // if
395 } // if
396// }
397 }
398
399 void addCast( Expression *&actual, Type *formal, const TyVarMap &tyVars ) {
400 Type *newType = formal->clone();
401 std::list< FunctionType *> functions;
402 // instead of functions needing adapters, this really ought to look for
403 // any function mentioning a polymorphic type
404 findAndReplaceFunction( newType, functions, tyVars, needsAdapter );
405 if ( ! functions.empty() ) {
406 actual = new CastExpr( actual, newType );
407 } else {
408 delete newType;
409 } // if
410 }
411
412 void Pass1::boxParams( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ) {
413/// std::cout << "function is ";
414/// function->print( std::cout );
415 for ( std::list< DeclarationWithType *>::const_iterator param = function->get_parameters().begin(); param != function->get_parameters().end(); ++param, ++arg ) {
416/// std::cout << "parameter is ";
417/// (*param)->print( std::fcout );
418/// std::cout << std::endl << "argument is ";
419/// (*arg)->print( std::cout );
420 assert( arg != appExpr->get_args().end() );
421 addCast( *arg, (*param)->get_type(), exprTyVars );
422 boxParam( (*param)->get_type(), *arg, exprTyVars );
423 } // for
424 }
425
426 void Pass1::addInferredParams( ApplicationExpr *appExpr, FunctionType *functionType, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars ) {
427 std::list< Expression *>::iterator cur = arg;
428 for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {
429 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {
430 InferredParams::const_iterator inferParam = appExpr->get_inferParams().find( (*assert)->get_uniqueId() );
431 assert( inferParam != appExpr->get_inferParams().end() && "NOTE: Explicit casts of polymorphic functions to compatible monomorphic functions are currently unsupported" );
432 Expression *newExpr = inferParam->second.expr->clone();
433 addCast( newExpr, (*assert)->get_type(), tyVars );
434 boxParam( (*assert)->get_type(), newExpr, tyVars );
435 appExpr->get_args().insert( cur, newExpr );
436 } // for
437 } // for
438 }
439
440 void makeRetParm( FunctionType *funcType ) {
441 DeclarationWithType *retParm = funcType->get_returnVals().front();
442
443 // make a new parameter that is a pointer to the type of the old return value
444 retParm->set_type( new PointerType( Type::Qualifiers(), retParm->get_type() ) );
445 funcType->get_parameters().push_front( retParm );
446
447 // we don't need the return value any more
448 funcType->get_returnVals().clear();
449 }
450
451 FunctionType *makeAdapterType( FunctionType *adaptee, const TyVarMap &tyVars ) {
452 // actually make the adapter type
453 FunctionType *adapter = adaptee->clone();
454 if ( ! adapter->get_returnVals().empty() && isPolyType( adapter->get_returnVals().front()->get_type(), tyVars ) ) {
455 makeRetParm( adapter );
456 } // if
457 adapter->get_parameters().push_front( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), new FunctionType( Type::Qualifiers(), true ) ), 0 ) );
458 return adapter;
459 }
460
461 Expression *makeAdapterArg( DeclarationWithType *param, DeclarationWithType *arg, DeclarationWithType *realParam, const TyVarMap &tyVars ) {
462 assert( param );
463 assert( arg );
464 if ( isPolyType( realParam->get_type(), tyVars ) ) {
465// if ( dynamic_cast< PointerType *>( arg->get_type() ) ) {
466// return new CastExpr( new VariableExpr( param ), arg->get_type()->clone() );
467// } else {
468 if ( dynamic_cast<TypeInstType *>(arg->get_type()) == NULL ) {
469 UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) );
470 deref->get_args().push_back( new CastExpr( new VariableExpr( param ), new PointerType( Type::Qualifiers(), arg->get_type()->clone() ) ) );
471 deref->get_results().push_back( arg->get_type()->clone() );
472 return deref;
473 } // if
474// }
475 } // if
476 return new VariableExpr( param );
477 }
478
479 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 ) {
480 UniqueName paramNamer( "_p" );
481 for ( ; param != paramEnd; ++param, ++arg, ++realParam ) {
482 if ( (*param)->get_name() == "" ) {
483 (*param)->set_name( paramNamer.newName() );
484 (*param)->set_linkage( LinkageSpec::C );
485 } // if
486 adapteeApp->get_args().push_back( makeAdapterArg( *param, *arg, *realParam, tyVars ) );
487 } // for
488 }
489
490
491
492 FunctionDecl *Pass1::makeAdapter( FunctionType *adaptee, FunctionType *realType, const std::string &mangleName, const TyVarMap &tyVars ) {
493 FunctionType *adapterType = makeAdapterType( adaptee, tyVars );
494 adapterType = ScrubTyVars::scrub( adapterType, tyVars );
495 DeclarationWithType *adapteeDecl = adapterType->get_parameters().front();
496 adapteeDecl->set_name( "_adaptee" );
497 ApplicationExpr *adapteeApp = new ApplicationExpr( new CastExpr( new VariableExpr( adapteeDecl ), new PointerType( Type::Qualifiers(), realType ) ) );
498 Statement *bodyStmt;
499
500 std::list< TypeDecl *>::iterator tyArg = realType->get_forall().begin();
501 std::list< TypeDecl *>::iterator tyParam = adapterType->get_forall().begin();
502 std::list< TypeDecl *>::iterator realTyParam = adaptee->get_forall().begin();
503 for ( ; tyParam != adapterType->get_forall().end(); ++tyArg, ++tyParam, ++realTyParam ) {
504 assert( tyArg != realType->get_forall().end() );
505 std::list< DeclarationWithType *>::iterator assertArg = (*tyArg)->get_assertions().begin();
506 std::list< DeclarationWithType *>::iterator assertParam = (*tyParam)->get_assertions().begin();
507 std::list< DeclarationWithType *>::iterator realAssertParam = (*realTyParam)->get_assertions().begin();
508 for ( ; assertParam != (*tyParam)->get_assertions().end(); ++assertArg, ++assertParam, ++realAssertParam ) {
509 assert( assertArg != (*tyArg)->get_assertions().end() );
510 adapteeApp->get_args().push_back( makeAdapterArg( *assertParam, *assertArg, *realAssertParam, tyVars ) );
511 } // for
512 } // for
513
514 std::list< DeclarationWithType *>::iterator arg = realType->get_parameters().begin();
515 std::list< DeclarationWithType *>::iterator param = adapterType->get_parameters().begin();
516 std::list< DeclarationWithType *>::iterator realParam = adaptee->get_parameters().begin();
517 param++; // skip adaptee parameter
518 if ( realType->get_returnVals().empty() ) {
519 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
520 bodyStmt = new ExprStmt( noLabels, adapteeApp );
521 } else if ( isPolyType( adaptee->get_returnVals().front()->get_type(), tyVars ) ) {
522 if ( (*param)->get_name() == "" ) {
523 (*param)->set_name( "_ret" );
524 (*param)->set_linkage( LinkageSpec::C );
525 } // if
526 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) );
527 UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) );
528 deref->get_args().push_back( new CastExpr( new VariableExpr( *param++ ), new PointerType( Type::Qualifiers(), realType->get_returnVals().front()->get_type()->clone() ) ) );
529 assign->get_args().push_back( deref );
530 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
531 assign->get_args().push_back( adapteeApp );
532 bodyStmt = new ExprStmt( noLabels, assign );
533 } else {
534 // adapter for a function that returns a monomorphic value
535 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
536 bodyStmt = new ReturnStmt( noLabels, adapteeApp );
537 } // if
538 CompoundStmt *adapterBody = new CompoundStmt( noLabels );
539 adapterBody->get_kids().push_back( bodyStmt );
540 std::string adapterName = makeAdapterName( mangleName );
541 return new FunctionDecl( adapterName, DeclarationNode::NoStorageClass, LinkageSpec::C, adapterType, adapterBody, false, false );
542 }
543
544 void Pass1::passAdapters( ApplicationExpr * appExpr, FunctionType * functionType, const TyVarMap & exprTyVars ) {
545 // collect a list of function types passed as parameters or implicit parameters (assertions)
546 std::list< DeclarationWithType *> &paramList = functionType->get_parameters();
547 std::list< FunctionType *> functions;
548 for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {
549 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {
550 findFunction( (*assert)->get_type(), functions, exprTyVars, needsAdapter );
551 } // for
552 } // for
553 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
554 findFunction( (*arg)->get_type(), functions, exprTyVars, needsAdapter );
555 } // for
556
557 // parameter function types for which an appropriate adapter has been generated. we cannot use the types
558 // after applying substitutions, since two different parameter types may be unified to the same type
559 std::set< std::string > adaptersDone;
560
561 for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) {
562 FunctionType *originalFunction = (*funType)->clone();
563 FunctionType *realFunction = (*funType)->clone();
564 std::string mangleName = SymTab::Mangler::mangle( realFunction );
565
566 // only attempt to create an adapter or pass one as a parameter if we haven't already done so for this
567 // pre-substitution parameter function type.
568 if ( adaptersDone.find( mangleName ) == adaptersDone.end() ) {
569 adaptersDone.insert( adaptersDone.begin(), mangleName );
570
571 // apply substitution to type variables to figure out what the adapter's type should look like
572 assert( env );
573 env->apply( realFunction );
574 mangleName = SymTab::Mangler::mangle( realFunction );
575 mangleName += makePolyMonoSuffix( originalFunction, exprTyVars );
576
577 AdapterMap & adapters = Pass1::adapters.top();
578 AdapterMap::iterator adapter = adapters.find( mangleName );
579 if ( adapter == adapters.end() ) {
580 // adapter has not been created yet in the current scope, so define it
581 FunctionDecl *newAdapter = makeAdapter( *funType, realFunction, mangleName, exprTyVars );
582 adapter = adapters.insert( adapters.begin(), std::pair< std::string, DeclarationWithType *>( mangleName, newAdapter ) );
583 stmtsToAdd.push_back( new DeclStmt( noLabels, newAdapter ) );
584 } // if
585 assert( adapter != adapters.end() );
586
587 // add the appropriate adapter as a parameter
588 appExpr->get_args().push_front( new VariableExpr( adapter->second ) );
589 } // if
590 } // for
591 } // passAdapters
592
593 Expression *makeIncrDecrExpr( ApplicationExpr *appExpr, Type *polyType, bool isIncr ) {
594 NameExpr *opExpr;
595 if ( isIncr ) {
596 opExpr = new NameExpr( "?+=?" );
597 } else {
598 opExpr = new NameExpr( "?-=?" );
599 } // if
600 UntypedExpr *addAssign = new UntypedExpr( opExpr );
601 if ( AddressExpr *address = dynamic_cast< AddressExpr *>( appExpr->get_args().front() ) ) {
602 addAssign->get_args().push_back( address->get_arg() );
603 } else {
604 addAssign->get_args().push_back( appExpr->get_args().front() );
605 } // if
606 addAssign->get_args().push_back( new NameExpr( sizeofName( polyType ) ) );
607 addAssign->get_results().front() = appExpr->get_results().front()->clone();
608 if ( appExpr->get_env() ) {
609 addAssign->set_env( appExpr->get_env() );
610 appExpr->set_env( 0 );
611 } // if
612 appExpr->get_args().clear();
613 delete appExpr;
614 return addAssign;
615 }
616
617 Expression *Pass1::handleIntrinsics( ApplicationExpr *appExpr ) {
618 if ( VariableExpr *varExpr = dynamic_cast< VariableExpr *>( appExpr->get_function() ) ) {
619 if ( varExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic ) {
620 if ( varExpr->get_var()->get_name() == "?[?]" ) {
621 assert( ! appExpr->get_results().empty() );
622 assert( appExpr->get_args().size() == 2 );
623 Type *baseType1 = isPolyPtr( appExpr->get_args().front()->get_results().front(), scopeTyVars, env );
624 Type *baseType2 = isPolyPtr( appExpr->get_args().back()->get_results().front(), scopeTyVars, env );
625 assert( ! baseType1 || ! baseType2 );
626 UntypedExpr *ret = 0;
627 if ( baseType1 || baseType2 ) {
628 ret = new UntypedExpr( new NameExpr( "?+?" ) );
629 } // if
630 if ( baseType1 ) {
631 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
632 multiply->get_args().push_back( appExpr->get_args().back() );
633 multiply->get_args().push_back( new NameExpr( sizeofName( baseType1 ) ) );
634 ret->get_args().push_back( appExpr->get_args().front() );
635 ret->get_args().push_back( multiply );
636 } else if ( baseType2 ) {
637 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
638 multiply->get_args().push_back( appExpr->get_args().front() );
639 multiply->get_args().push_back( new NameExpr( sizeofName( baseType2 ) ) );
640 ret->get_args().push_back( multiply );
641 ret->get_args().push_back( appExpr->get_args().back() );
642 } // if
643 if ( baseType1 || baseType2 ) {
644 ret->get_results().push_front( appExpr->get_results().front()->clone() );
645 if ( appExpr->get_env() ) {
646 ret->set_env( appExpr->get_env() );
647 appExpr->set_env( 0 );
648 } // if
649 appExpr->get_args().clear();
650 delete appExpr;
651 return ret;
652 } // if
653 } else if ( varExpr->get_var()->get_name() == "*?" ) {
654 assert( ! appExpr->get_results().empty() );
655 assert( ! appExpr->get_args().empty() );
656 if ( isPolyType( appExpr->get_results().front(), scopeTyVars, env ) ) {
657 Expression *ret = appExpr->get_args().front();
658 delete ret->get_results().front();
659 ret->get_results().front() = appExpr->get_results().front()->clone();
660 if ( appExpr->get_env() ) {
661 ret->set_env( appExpr->get_env() );
662 appExpr->set_env( 0 );
663 } // if
664 appExpr->get_args().clear();
665 delete appExpr;
666 return ret;
667 } // if
668 } else if ( varExpr->get_var()->get_name() == "?++" || varExpr->get_var()->get_name() == "?--" ) {
669 assert( ! appExpr->get_results().empty() );
670 assert( appExpr->get_args().size() == 1 );
671 if ( Type *baseType = isPolyPtr( appExpr->get_results().front(), scopeTyVars, env ) ) {
672 Type *tempType = appExpr->get_results().front()->clone();
673 if ( env ) {
674 env->apply( tempType );
675 } // if
676 ObjectDecl *newObj = makeTemporary( tempType );
677 VariableExpr *tempExpr = new VariableExpr( newObj );
678 UntypedExpr *assignExpr = new UntypedExpr( new NameExpr( "?=?" ) );
679 assignExpr->get_args().push_back( tempExpr->clone() );
680 if ( AddressExpr *address = dynamic_cast< AddressExpr *>( appExpr->get_args().front() ) ) {
681 assignExpr->get_args().push_back( address->get_arg()->clone() );
682 } else {
683 assignExpr->get_args().push_back( appExpr->get_args().front()->clone() );
684 } // if
685 CommaExpr *firstComma = new CommaExpr( assignExpr, makeIncrDecrExpr( appExpr, baseType, varExpr->get_var()->get_name() == "?++" ) );
686 return new CommaExpr( firstComma, tempExpr );
687 } // if
688 } else if ( varExpr->get_var()->get_name() == "++?" || varExpr->get_var()->get_name() == "--?" ) {
689 assert( ! appExpr->get_results().empty() );
690 assert( appExpr->get_args().size() == 1 );
691 if ( Type *baseType = isPolyPtr( appExpr->get_results().front(), scopeTyVars, env ) ) {
692 return makeIncrDecrExpr( appExpr, baseType, varExpr->get_var()->get_name() == "++?" );
693 } // if
694 } else if ( varExpr->get_var()->get_name() == "?+?" || varExpr->get_var()->get_name() == "?-?" ) {
695 assert( ! appExpr->get_results().empty() );
696 assert( appExpr->get_args().size() == 2 );
697 Type *baseType1 = isPolyPtr( appExpr->get_args().front()->get_results().front(), scopeTyVars, env );
698 Type *baseType2 = isPolyPtr( appExpr->get_args().back()->get_results().front(), scopeTyVars, env );
699 if ( baseType1 && baseType2 ) {
700 UntypedExpr *divide = new UntypedExpr( new NameExpr( "?/?" ) );
701 divide->get_args().push_back( appExpr );
702 divide->get_args().push_back( new NameExpr( sizeofName( baseType1 ) ) );
703 divide->get_results().push_front( appExpr->get_results().front()->clone() );
704 if ( appExpr->get_env() ) {
705 divide->set_env( appExpr->get_env() );
706 appExpr->set_env( 0 );
707 } // if
708 return divide;
709 } else if ( baseType1 ) {
710 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
711 multiply->get_args().push_back( appExpr->get_args().back() );
712 multiply->get_args().push_back( new NameExpr( sizeofName( baseType1 ) ) );
713 appExpr->get_args().back() = multiply;
714 } else if ( baseType2 ) {
715 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
716 multiply->get_args().push_back( appExpr->get_args().front() );
717 multiply->get_args().push_back( new NameExpr( sizeofName( baseType2 ) ) );
718 appExpr->get_args().front() = multiply;
719 } // if
720 } else if ( varExpr->get_var()->get_name() == "?+=?" || varExpr->get_var()->get_name() == "?-=?" ) {
721 assert( ! appExpr->get_results().empty() );
722 assert( appExpr->get_args().size() == 2 );
723 Type *baseType = isPolyPtr( appExpr->get_results().front(), scopeTyVars, env );
724 if ( baseType ) {
725 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
726 multiply->get_args().push_back( appExpr->get_args().back() );
727 multiply->get_args().push_back( new NameExpr( sizeofName( baseType ) ) );
728 appExpr->get_args().back() = multiply;
729 } // if
730 } // if
731 return appExpr;
732 } // if
733 } // if
734 return 0;
735 }
736
737 Expression *Pass1::mutate( ApplicationExpr *appExpr ) {
738 // std::cerr << "mutate appExpr: ";
739 // for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
740 // std::cerr << i->first << " ";
741 // }
742 // std::cerr << "\n";
743 bool oldUseRetval = useRetval;
744 useRetval = false;
745 appExpr->get_function()->acceptMutator( *this );
746 mutateAll( appExpr->get_args(), *this );
747 useRetval = oldUseRetval;
748
749 assert( ! appExpr->get_function()->get_results().empty() );
750 PointerType *pointer = dynamic_cast< PointerType *>( appExpr->get_function()->get_results().front() );
751 assert( pointer );
752 FunctionType *function = dynamic_cast< FunctionType *>( pointer->get_base() );
753 assert( function );
754
755 if ( Expression *newExpr = handleIntrinsics( appExpr ) ) {
756 return newExpr;
757 } // if
758
759 Expression *ret = appExpr;
760
761 std::list< Expression *>::iterator arg = appExpr->get_args().begin();
762 std::list< Expression *>::iterator paramBegin = appExpr->get_args().begin();
763
764 std::string typeName;
765 if ( isPolyRet( function, typeName ) ) {
766 ret = addPolyRetParam( appExpr, function, typeName, arg );
767 } else if ( needsAdapter( function, scopeTyVars ) ) {
768 // std::cerr << "needs adapter: ";
769 // for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
770 // std::cerr << i->first << " ";
771 // }
772 // std::cerr << "\n";
773 // change the application so it calls the adapter rather than the passed function
774 ret = applyAdapter( appExpr, function, arg, scopeTyVars );
775 } // if
776 arg = appExpr->get_args().begin();
777
778 TyVarMap exprTyVars;
779 makeTyVarMap( function, exprTyVars );
780
781 passTypeVars( appExpr, arg, exprTyVars );
782 addInferredParams( appExpr, function, arg, exprTyVars );
783
784 arg = paramBegin;
785
786 boxParams( appExpr, function, arg, exprTyVars );
787
788 passAdapters( appExpr, function, exprTyVars );
789
790 return ret;
791 }
792
793 Expression *Pass1::mutate( UntypedExpr *expr ) {
794 if ( ! expr->get_results().empty() && isPolyType( expr->get_results().front(), scopeTyVars, env ) ) {
795 if ( NameExpr *name = dynamic_cast< NameExpr *>( expr->get_function() ) ) {
796 if ( name->get_name() == "*?" ) {
797 Expression *ret = expr->get_args().front();
798 expr->get_args().clear();
799 delete expr;
800 return ret->acceptMutator( *this );
801 } // if
802 } // if
803 } // if
804 return PolyMutator::mutate( expr );
805 }
806
807 Expression *Pass1::mutate( AddressExpr *addrExpr ) {
808 assert( ! addrExpr->get_arg()->get_results().empty() );
809 addrExpr->set_arg( mutateExpression( addrExpr->get_arg() ) );
810 if ( isPolyType( addrExpr->get_arg()->get_results().front(), scopeTyVars, env ) ) {
811 Expression *ret = addrExpr->get_arg();
812 delete ret->get_results().front();
813 ret->get_results().front() = addrExpr->get_results().front()->clone();
814 addrExpr->set_arg( 0 );
815 delete addrExpr;
816 return ret;
817 } else {
818 return addrExpr;
819 } // if
820 }
821
822 Statement * Pass1::mutate(ReturnStmt *retStmt) {
823 // a cast expr on a polymorphic return value is either redundant or invalid
824 while ( CastExpr *castExpr = dynamic_cast< CastExpr *>( retStmt->get_expr() ) ) {
825 retStmt->set_expr( castExpr->get_arg() );
826 retStmt->get_expr()->set_env( castExpr->get_env() );
827 castExpr->set_env( 0 );
828 castExpr->set_arg( 0 );
829 delete castExpr;
830 }
831 if ( retval && retStmt->get_expr() ) {
832 assert( ! retStmt->get_expr()->get_results().empty() );
833 if ( retStmt->get_expr()->get_results().front()->get_isLvalue() ) {
834/// retStmt->set_expr( mutateExpression( retStmt->get_expr() ) );
835 TypeInstType *typeInst = dynamic_cast< TypeInstType *>( retval->get_type() );
836 assert( typeInst );
837 std::map< std::string, DeclarationWithType *>::const_iterator assignIter = assignOps.find( typeInst->get_name() );
838 if ( assignIter == assignOps.end() ) {
839 throw SemanticError( "Attempt to return dtype or ftype object in ", retStmt->get_expr() );
840 } // if
841 ApplicationExpr *assignExpr = new ApplicationExpr( new VariableExpr( assignIter->second ) );
842 Expression *retParm = new NameExpr( retval->get_name() );
843 retParm->get_results().push_back( new PointerType( Type::Qualifiers(), retval->get_type()->clone() ) );
844 assignExpr->get_args().push_back( retParm );
845 assignExpr->get_args().push_back( retStmt->get_expr() );
846 stmtsToAdd.push_back( new ExprStmt( noLabels, mutateExpression( assignExpr ) ) );
847 } else {
848 useRetval = true;
849 stmtsToAdd.push_back( new ExprStmt( noLabels, mutateExpression( retStmt->get_expr() ) ) );
850 useRetval = false;
851 } // if
852 retStmt->set_expr( 0 );
853 } else {
854 retStmt->set_expr( mutateExpression( retStmt->get_expr() ) );
855 } // if
856 return retStmt;
857 }
858
859 Type * Pass1::mutate( PointerType *pointerType ) {
860 TyVarMap oldtyVars = scopeTyVars;
861 makeTyVarMap( pointerType, scopeTyVars );
862
863 Type *ret = Mutator::mutate( pointerType );
864
865 scopeTyVars = oldtyVars;
866 return ret;
867 }
868
869 Type * Pass1::mutate( FunctionType *functionType ) {
870 TyVarMap oldtyVars = scopeTyVars;
871 makeTyVarMap( functionType, scopeTyVars );
872
873 Type *ret = Mutator::mutate( functionType );
874
875 scopeTyVars = oldtyVars;
876 return ret;
877 }
878
879 void Pass1::doBeginScope() {
880 // push a copy of the current map
881 adapters.push(adapters.top());
882 }
883
884 void Pass1::doEndScope() {
885 adapters.pop();
886 }
887
888////////////////////////////////////////// Pass2 ////////////////////////////////////////////////////
889
890 void Pass2::addAdapters( FunctionType *functionType ) {
891 std::list< DeclarationWithType *> &paramList = functionType->get_parameters();
892 std::list< FunctionType *> functions;
893 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
894 Type *orig = (*arg)->get_type();
895 findAndReplaceFunction( orig, functions, scopeTyVars, needsAdapter );
896 (*arg)->set_type( orig );
897 }
898 std::set< std::string > adaptersDone;
899 for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) {
900 std::string mangleName = mangleAdapterName( *funType, scopeTyVars );
901 if ( adaptersDone.find( mangleName ) == adaptersDone.end() ) {
902 std::string adapterName = makeAdapterName( mangleName );
903 paramList.push_front( new ObjectDecl( adapterName, DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), makeAdapterType( *funType, scopeTyVars ) ), 0 ) );
904 adaptersDone.insert( adaptersDone.begin(), mangleName );
905 }
906 }
907/// deleteAll( functions );
908 }
909
910 template< typename DeclClass >
911 DeclClass * Pass2::handleDecl( DeclClass *decl, Type *type ) {
912 DeclClass *ret = static_cast< DeclClass *>( Mutator::mutate( decl ) );
913
914 return ret;
915 }
916
917 DeclarationWithType * Pass2::mutate( FunctionDecl *functionDecl ) {
918 return handleDecl( functionDecl, functionDecl->get_functionType() );
919 }
920
921 ObjectDecl * Pass2::mutate( ObjectDecl *objectDecl ) {
922 return handleDecl( objectDecl, objectDecl->get_type() );
923 }
924
925 TypeDecl * Pass2::mutate( TypeDecl *typeDecl ) {
926 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
927 if ( typeDecl->get_base() ) {
928 return handleDecl( typeDecl, typeDecl->get_base() );
929 } else {
930 return Mutator::mutate( typeDecl );
931 }
932 }
933
934 TypedefDecl * Pass2::mutate( TypedefDecl *typedefDecl ) {
935 return handleDecl( typedefDecl, typedefDecl->get_base() );
936 }
937
938 Type * Pass2::mutate( PointerType *pointerType ) {
939 TyVarMap oldtyVars = scopeTyVars;
940 makeTyVarMap( pointerType, scopeTyVars );
941
942 Type *ret = Mutator::mutate( pointerType );
943
944 scopeTyVars = oldtyVars;
945 return ret;
946 }
947
948 Type *Pass2::mutate( FunctionType *funcType ) {
949 TyVarMap oldtyVars = scopeTyVars;
950 makeTyVarMap( funcType, scopeTyVars );
951
952 std::string typeName;
953 if ( isPolyRet( funcType, typeName ) ) {
954 DeclarationWithType *ret = funcType->get_returnVals().front();
955 ret->set_type( new PointerType( Type::Qualifiers(), ret->get_type() ) );
956 funcType->get_parameters().push_front( ret );
957 funcType->get_returnVals().pop_front();
958 }
959
960 std::list< DeclarationWithType *>::iterator last = funcType->get_parameters().begin();
961 std::list< DeclarationWithType *> inferredParams;
962 ObjectDecl newObj( "", DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ), 0 );
963// ObjectDecl *newFunPtr = new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), new FunctionType( Type::Qualifiers(), true ) ), 0 );
964 for ( std::list< TypeDecl *>::const_iterator tyParm = funcType->get_forall().begin(); tyParm != funcType->get_forall().end(); ++tyParm ) {
965 ObjectDecl *sizeParm, *alignParm;
966 // add all size and alignment parameters to parameter list
967 if ( (*tyParm)->get_kind() == TypeDecl::Any ) {
968 TypeInstType parmType( Type::Qualifiers(), (*tyParm)->get_name(), *tyParm );
969
970 sizeParm = newObj.clone();
971 sizeParm->set_name( sizeofName( &parmType ) );
972 last = funcType->get_parameters().insert( last, sizeParm );
973 ++last;
974
975 alignParm = newObj.clone();
976 alignParm->set_name( alignofName( &parmType ) );
977 last = funcType->get_parameters().insert( last, alignParm );
978 ++last;
979 }
980 // move all assertions into parameter list
981 for ( std::list< DeclarationWithType *>::iterator assert = (*tyParm)->get_assertions().begin(); assert != (*tyParm)->get_assertions().end(); ++assert ) {
982// *assert = (*assert)->acceptMutator( *this );
983 inferredParams.push_back( *assert );
984 }
985 (*tyParm)->get_assertions().clear();
986 }
987 funcType->get_parameters().splice( last, inferredParams );
988 addAdapters( funcType );
989 mutateAll( funcType->get_returnVals(), *this );
990 mutateAll( funcType->get_parameters(), *this );
991
992 scopeTyVars = oldtyVars;
993 return funcType;
994 }
995
996////////////////////////////////////////// Pass3 ////////////////////////////////////////////////////
997
998 template< typename DeclClass >
999 DeclClass * Pass3::handleDecl( DeclClass *decl, Type *type ) {
1000 TyVarMap oldtyVars = scopeTyVars;
1001 makeTyVarMap( type, scopeTyVars );
1002
1003 DeclClass *ret = static_cast< DeclClass *>( Mutator::mutate( decl ) );
1004 ScrubTyVars::scrub( decl, scopeTyVars );
1005
1006 scopeTyVars = oldtyVars;
1007 return ret;
1008 }
1009
1010 ObjectDecl * Pass3::mutate( ObjectDecl *objectDecl ) {
1011 return handleDecl( objectDecl, objectDecl->get_type() );
1012 }
1013
1014 DeclarationWithType * Pass3::mutate( FunctionDecl *functionDecl ) {
1015 return handleDecl( functionDecl, functionDecl->get_functionType() );
1016 }
1017
1018 TypedefDecl * Pass3::mutate( TypedefDecl *typedefDecl ) {
1019 return handleDecl( typedefDecl, typedefDecl->get_base() );
1020 }
1021
1022 TypeDecl * Pass3::mutate( TypeDecl *typeDecl ) {
1023// Initializer *init = 0;
1024// std::list< Expression *> designators;
1025// scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
1026// if ( typeDecl->get_base() ) {
1027// init = new SimpleInit( new SizeofExpr( handleDecl( typeDecl, typeDecl->get_base() ) ), designators );
1028// }
1029// return new ObjectDecl( typeDecl->get_name(), Declaration::Extern, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::UnsignedInt ), init );
1030
1031 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
1032 return Mutator::mutate( typeDecl );
1033 }
1034
1035 Type * Pass3::mutate( PointerType *pointerType ) {
1036 TyVarMap oldtyVars = scopeTyVars;
1037 makeTyVarMap( pointerType, scopeTyVars );
1038
1039 Type *ret = Mutator::mutate( pointerType );
1040
1041 scopeTyVars = oldtyVars;
1042 return ret;
1043 }
1044
1045 Type * Pass3::mutate( FunctionType *functionType ) {
1046 TyVarMap oldtyVars = scopeTyVars;
1047 makeTyVarMap( functionType, scopeTyVars );
1048
1049 Type *ret = Mutator::mutate( functionType );
1050
1051 scopeTyVars = oldtyVars;
1052 return ret;
1053 }
1054
1055 Statement *Pass3::mutate( DeclStmt *declStmt ) {
1056 if ( ObjectDecl *objectDecl = dynamic_cast< ObjectDecl *>( declStmt->get_decl() ) ) {
1057 if ( isPolyType( objectDecl->get_type(), scopeTyVars ) ) {
1058 // change initialization of a polymorphic value object
1059 // to allocate storage with alloca
1060 Type *declType = objectDecl->get_type();
1061 UntypedExpr *alloc = new UntypedExpr( new NameExpr( "__builtin_alloca" ) );
1062 alloc->get_args().push_back( new NameExpr( sizeofName( declType ) ) );
1063
1064 delete objectDecl->get_init();
1065
1066 std::list<Expression*> designators;
1067 objectDecl->set_init( new SingleInit( alloc, designators ) );
1068 }
1069 }
1070 return Mutator::mutate( declStmt );
1071 }
1072 } // anonymous namespace
1073} // namespace GenPoly
1074
1075// Local Variables: //
1076// tab-width: 4 //
1077// mode: c++ //
1078// compile-command: "make install" //
1079// End: //
Note: See TracBrowser for help on using the repository browser.