source: src/GenPoly/Box.cc@ 334163c

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 334163c was 843054c2, checked in by Peter A. Buhr <pabuhr@…>, 10 years ago

licencing: seventh groups of files
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[51587aa]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//
[01aeade]7// Box.cc --
[51587aa]8//
9// Author : Richard C. Bilson
10// Created On : Mon May 18 07:44:20 2015
[01aeade]11// Last Modified By : Peter A. Buhr
12// Last Modified On : Tue May 19 07:31:41 2015
13// Update Count : 1
[51587aa]14//
[51b73452]15
16#include <set>
[b1a6d6b]17#include <stack>
[51b73452]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 "SynTree/Declaration.h"
29#include "SynTree/Type.h"
30#include "SynTree/Expression.h"
31#include "SynTree/Initializer.h"
32#include "SynTree/Statement.h"
33#include "SynTree/Mutator.h"
34#include "ResolvExpr/TypeEnvironment.h"
35#include "SymTab/Mangler.h"
36
37#include "SemanticError.h"
38#include "UniqueName.h"
39#include "utility.h"
40
41#include <ext/functional> // temporary
42
43namespace GenPoly {
[01aeade]44 namespace {
45 const std::list<Label> noLabels;
46
47 class Pass1 : public PolyMutator {
48 public:
49 Pass1();
50 virtual Expression *mutate( ApplicationExpr *appExpr );
51 virtual Expression *mutate( AddressExpr *addrExpr );
52 virtual Expression *mutate( UntypedExpr *expr );
53 virtual DeclarationWithType* mutate( FunctionDecl *functionDecl );
54 virtual TypeDecl *mutate( TypeDecl *typeDecl );
55 virtual Expression *mutate( CommaExpr *commaExpr );
56 virtual Expression *mutate( ConditionalExpr *condExpr );
57 virtual Statement *mutate(ReturnStmt *catchStmt);
58 virtual Type *mutate( PointerType *pointerType );
59 virtual Type *mutate( FunctionType *pointerType );
[51b73452]60
[01aeade]61 virtual void doBeginScope();
62 virtual void doEndScope();
63 private:
64 void passTypeVars( ApplicationExpr *appExpr, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars );
65 Expression *addRetParam( ApplicationExpr *appExpr, FunctionType *function, Type *retType, std::list< Expression *>::iterator &arg );
66 Expression *addPolyRetParam( ApplicationExpr *appExpr, FunctionType *function, std::string typeName, std::list< Expression *>::iterator &arg );
67 Expression *applyAdapter( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars );
68 void boxParam( Type *formal, Expression *&arg, const TyVarMap &exprTyVars );
69 void boxParams( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars );
70 void addInferredParams( ApplicationExpr *appExpr, FunctionType *functionType, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars );
71 void findAssignOps( const std::list< TypeDecl *> &forall );
72 void passAdapters( ApplicationExpr *appExpr, FunctionType *functionType, const TyVarMap &exprTyVars );
73 FunctionDecl *makeAdapter( FunctionType *adaptee, FunctionType *realType, const std::string &mangleName, const TyVarMap &tyVars );
74 Expression *handleIntrinsics( ApplicationExpr *appExpr );
75 ObjectDecl *makeTemporary( Type *type );
[51b73452]76
[01aeade]77 std::map< std::string, DeclarationWithType *> assignOps;
78 typedef std::map< std::string, FunctionDecl *> AdapterMap;
79 std::stack< AdapterMap > adapters;
80 DeclarationWithType *retval;
81 bool useRetval;
82 UniqueName tempNamer;
83 };
84
85 class Pass2 : public PolyMutator {
86 public:
87 Pass2();
88 template< typename DeclClass >
89 DeclClass *handleDecl( DeclClass *decl, Type *type );
90 virtual DeclarationWithType *mutate( FunctionDecl *functionDecl );
91 virtual ObjectDecl *mutate( ObjectDecl *objectDecl );
92 virtual TypeDecl *mutate( TypeDecl *typeDecl );
93 virtual TypedefDecl *mutate( TypedefDecl *typedefDecl );
94 virtual Type *mutate( PointerType *pointerType );
95 virtual Type *mutate( FunctionType *funcType );
96 private:
97 void addAdapters( FunctionType *functionType );
[51b73452]98
[01aeade]99 std::map< UniqueId, std::string > adapterName;
100 };
101
102 class Pass3 : public PolyMutator {
103 public:
104 template< typename DeclClass >
105 DeclClass *handleDecl( DeclClass *decl, Type *type );
106 virtual DeclarationWithType *mutate( FunctionDecl *functionDecl );
107 virtual ObjectDecl *mutate( ObjectDecl *objectDecl );
108 virtual TypedefDecl *mutate( TypedefDecl *objectDecl );
109 virtual TypeDecl *mutate( TypeDecl *objectDecl );
110 virtual Statement *mutate( DeclStmt *declStmt );
111 virtual Type *mutate( PointerType *pointerType );
112 virtual Type *mutate( FunctionType *funcType );
113 private:
114 };
115
116 } // anonymous namespace
117
118 void printAllNotBuiltin( const std::list< Declaration *>& translationUnit, std::ostream &os ) {
119 for ( std::list< Declaration *>::const_iterator i = translationUnit.begin(); i != translationUnit.end(); ++i ) {
120 if ( ! LinkageSpec::isBuiltin( (*i)->get_linkage() ) ) {
121 (*i)->print( os );
122 os << std::endl;
[6c3744e]123 } // if
[01aeade]124 } // for
[6c3744e]125 }
126
[01aeade]127 void box( std::list< Declaration *>& translationUnit ) {
128 Pass1 pass1;
129 Pass2 pass2;
130 Pass3 pass3;
131 mutateAll( translationUnit, pass1 );
132 mutateAll( translationUnit, pass2 );
133 mutateAll( translationUnit, pass3 );
[6c3744e]134 }
135
[01aeade]136 ////////////////////////////////////////// Pass1 ////////////////////////////////////////////////////
137
138 namespace {
139 std::string makeAdapterName( const std::string &mangleName ) {
140 return "_adapter" + mangleName;
141 }
[6c3744e]142
[01aeade]143 bool isPolyRet( FunctionType *function, std::string &name, const TyVarMap &otherTyVars ) {
144 bool doTransform = false;
145 if ( ! function->get_returnVals().empty() ) {
146 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( function->get_returnVals().front()->get_type() ) ) {
147
148 // figure out if the return type is specified by a type parameter
149 for ( std::list< TypeDecl *>::const_iterator tyVar = function->get_forall().begin(); tyVar != function->get_forall().end(); ++tyVar ) {
150 if ( (*tyVar)->get_name() == typeInst->get_name() ) {
151 doTransform = true;
152 name = typeInst->get_name();
153 break;
154 } // if
155 } // for
156 if ( ! doTransform && otherTyVars.find( typeInst->get_name() ) != otherTyVars.end() ) {
157 doTransform = true;
158 } // if
[6c3744e]159 } // if
160 } // if
[01aeade]161 return doTransform;
162 }
[6c3744e]163
[01aeade]164 bool isPolyRet( FunctionType *function, std::string &name ) {
165 TyVarMap dummyTyVars;
166 return isPolyRet( function, name, dummyTyVars );
167 }
[6c3744e]168
[01aeade]169 Pass1::Pass1()
170 : useRetval( false ), tempNamer( "_temp" ) {
171 }
172
173 bool checkAssignment( DeclarationWithType *decl, std::string &name ) {
174 if ( decl->get_name() == "?=?" ) {
175 if ( PointerType *ptrType = dynamic_cast< PointerType *>( decl->get_type() ) ) {
176 if ( FunctionType *funType = dynamic_cast< FunctionType *>( ptrType->get_base() ) ) {
177 if ( funType->get_parameters().size() == 2 ) {
178 if ( PointerType *pointer = dynamic_cast< PointerType *>( funType->get_parameters().front()->get_type() ) ) {
179 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( pointer->get_base() ) ) {
180 name = typeInst->get_name();
181 return true;
182 } // if
183 } // if
184 } // if
185 } // if
186 } // if
187 } // if
188 return false;
189 }
190
191 void Pass1::findAssignOps( const std::list< TypeDecl *> &forall ) {
192 assignOps.clear();
193 for ( std::list< TypeDecl *>::const_iterator i = forall.begin(); i != forall.end(); ++i ) {
194 for ( std::list< DeclarationWithType *>::const_iterator assert = (*i)->get_assertions().begin(); assert != (*i)->get_assertions().end(); ++assert ) {
195 std::string typeName;
196 if ( checkAssignment( *assert, typeName ) ) {
197 assignOps[ typeName ] = *assert;
198 } // if
199 } // for
200 } // for
201 }
202
203 DeclarationWithType *
204 Pass1::mutate( FunctionDecl *functionDecl ) {
205 if ( functionDecl->get_statements() ) {
206 TyVarMap oldtyVars = scopeTyVars;
207 DeclarationWithType *oldRetval = retval;
208 bool oldUseRetval = useRetval;
209
210 retval = 0;
211 std::string typeName;
212 if ( isPolyRet( functionDecl->get_functionType(), typeName ) && functionDecl->get_linkage() == LinkageSpec::Cforall ) {
213 retval = functionDecl->get_functionType()->get_returnVals().front();
[51b73452]214
[01aeade]215 // give names to unnamed return values
216 if ( retval->get_name() == "" ) {
217 retval->set_name( "_retparm" );
218 retval->set_linkage( LinkageSpec::C );
219 } // if
220 } // if
221
222 scopeTyVars.clear();
[51b73452]223/// std::cerr << "clear\n";
[01aeade]224 makeTyVarMap( functionDecl->get_functionType(), scopeTyVars );
225 findAssignOps( functionDecl->get_functionType()->get_forall() );
226 functionDecl->set_statements( functionDecl->get_statements()->acceptMutator( *this ) );
[51b73452]227
[01aeade]228 scopeTyVars = oldtyVars;
[51b73452]229/// std::cerr << "end FunctionDecl: ";
[6c3744e]230/// for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
[51b73452]231/// std::cerr << i->first << " ";
232/// }
233/// std::cerr << "\n";
[01aeade]234 retval = oldRetval;
235 useRetval = oldUseRetval;
236 // doEndScope();
237 } // if
238 return functionDecl;
239 }
[6c3744e]240
[01aeade]241 TypeDecl *Pass1::mutate( TypeDecl *typeDecl ) {
[51b73452]242/// std::cerr << "add " << typeDecl->get_name() << "\n";
[01aeade]243 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
244 return Mutator::mutate( typeDecl );
245 }
[6c3744e]246
[01aeade]247 Expression *Pass1::mutate( CommaExpr *commaExpr ) {
248 bool oldUseRetval = useRetval;
249 useRetval = false;
250 commaExpr->set_arg1( maybeMutate( commaExpr->get_arg1(), *this ) );
251 useRetval = oldUseRetval;
252 commaExpr->set_arg2( maybeMutate( commaExpr->get_arg2(), *this ) );
253 return commaExpr;
254 }
[6c3744e]255
[01aeade]256 Expression *Pass1::mutate( ConditionalExpr *condExpr ) {
257 bool oldUseRetval = useRetval;
258 useRetval = false;
259 condExpr->set_arg1( maybeMutate( condExpr->get_arg1(), *this ) );
260 useRetval = oldUseRetval;
261 condExpr->set_arg2( maybeMutate( condExpr->get_arg2(), *this ) );
262 condExpr->set_arg3( maybeMutate( condExpr->get_arg3(), *this ) );
263 return condExpr;
[6c3744e]264
[01aeade]265 }
[6c3744e]266
[01aeade]267 void Pass1::passTypeVars( ApplicationExpr *appExpr, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ) {
268 for ( TyVarMap::const_iterator tyParm = exprTyVars.begin(); tyParm != exprTyVars.end(); ++tyParm ) {
269 ResolvExpr::EqvClass eqvClass;
270 assert( env );
271 if ( tyParm->second == TypeDecl::Any ) {
272 Type *concrete = env->lookup( tyParm->first );
273 if ( concrete ) {
274 arg = appExpr->get_args().insert( arg, new SizeofExpr( concrete->clone() ) );
275 arg++;
276 } else {
277 throw SemanticError( "unbound type variable in application ", appExpr );
278 } // if
279 } // if
280 } // for
281 }
[6c3744e]282
[01aeade]283 ObjectDecl *Pass1::makeTemporary( Type *type ) {
284 ObjectDecl *newObj = new ObjectDecl( tempNamer.newName(), Declaration::NoStorageClass, LinkageSpec::C, 0, type, 0 );
285 stmtsToAdd.push_back( new DeclStmt( noLabels, newObj ) );
286 return newObj;
287 }
[6c3744e]288
[01aeade]289 TypeInstType *isPolyType( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) {
290 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
291 if ( env ) {
292 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
293 return isPolyType( newType, env, tyVars );
294 } // if
295 } // if
296 if ( tyVars.find( typeInst->get_name() ) != tyVars.end() ) {
297 return typeInst;
298 } else {
299 return 0;
300 } // if
301 } else {
302 return 0;
303 } // if
304 }
[6c3744e]305
[01aeade]306 Expression *Pass1::addRetParam( ApplicationExpr *appExpr, FunctionType *function, Type *retType, std::list< Expression *>::iterator &arg ) {
307 if ( useRetval ) {
308 assert( retval );
309 arg = appExpr->get_args().insert( arg, new VariableExpr( retval ) );
310 arg++;
311 } else {
312 ObjectDecl *newObj = makeTemporary( retType->clone() );
313 Expression *paramExpr = new VariableExpr( newObj );
314 if ( ! isPolyType( newObj->get_type(), env, scopeTyVars ) ) {
315 paramExpr = new AddressExpr( paramExpr );
316 } // if
317 arg = appExpr->get_args().insert( arg, paramExpr );
318 arg++;
[51b73452]319/// stmtsToAdd.push_back( new ExprStmt( noLabels, appExpr ) );
[01aeade]320 CommaExpr *commaExpr = new CommaExpr( appExpr, new VariableExpr( newObj ) );
321 commaExpr->set_env( appExpr->get_env() );
322 appExpr->set_env( 0 );
323 return commaExpr;
324 } // if
325 return appExpr;
326 }
[6c3744e]327
[01aeade]328 Expression *Pass1::addPolyRetParam( ApplicationExpr *appExpr, FunctionType *function, std::string typeName, std::list< Expression *>::iterator &arg ) {
329 ResolvExpr::EqvClass eqvClass;
330 assert( env );
331 Type *concrete = env->lookup( typeName );
332 if ( concrete == 0 ) {
333 throw SemanticError( "Unbound type variable " + typeName + " in ", appExpr );
334 } // if
335 return addRetParam( appExpr, function, concrete, arg );
336 }
[6c3744e]337
[01aeade]338 Expression *Pass1::applyAdapter( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars ) {
339 Expression *ret = appExpr;
340 if ( ! function->get_returnVals().empty() && isPolyVal( function->get_returnVals().front()->get_type(), tyVars ) ) {
341 ret = addRetParam( appExpr, function, function->get_returnVals().front()->get_type(), arg );
342 } // if
343 std::string mangleName = SymTab::Mangler::mangle( function );
344 std::string adapterName = makeAdapterName( mangleName );
[b1a6d6b]345
[01aeade]346 appExpr->get_args().push_front( appExpr->get_function() );
347 appExpr->set_function( new NameExpr( adapterName ) );
[51b73452]348
[01aeade]349 return ret;
350 }
[6c3744e]351
[01aeade]352 void Pass1::boxParam( Type *param, Expression *&arg, const TyVarMap &exprTyVars ) {
353 assert( ! arg->get_results().empty() );
[a32b204]354/// if ( ! dynamic_cast< PointerType *>( arg->get_results().front() ) ) {
[01aeade]355 TypeInstType *typeInst = dynamic_cast< TypeInstType *>( param );
356 if ( typeInst && exprTyVars.find( typeInst->get_name() ) != exprTyVars.end() ) {
357 if ( dynamic_cast< TypeInstType *>( arg->get_results().front() ) ) {
358 // if the argument's type is a type parameter, we don't need to box again!
359 return;
360 } else if ( arg->get_results().front()->get_isLvalue() ) {
361 // VariableExpr and MemberExpr are lvalues
362 arg = new AddressExpr( arg );
363 } else {
364 ObjectDecl *newObj = new ObjectDecl( tempNamer.newName(), Declaration::NoStorageClass, LinkageSpec::C, 0, arg->get_results().front()->clone(), 0 );
365 newObj->get_type()->get_qualifiers() = Type::Qualifiers();
366 stmtsToAdd.push_back( new DeclStmt( noLabels, newObj ) );
367 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) );
368 assign->get_args().push_back( new VariableExpr( newObj ) );
369 assign->get_args().push_back( arg );
370 stmtsToAdd.push_back( new ExprStmt( noLabels, assign ) );
371 arg = new AddressExpr( new VariableExpr( newObj ) );
372 } // if
373 } // if
[51b73452]374/// }
[01aeade]375 }
[6c3744e]376
[01aeade]377 void addCast( Expression *&actual, Type *formal, const TyVarMap &tyVars ) {
378 Type *newType = formal->clone();
379 std::list< FunctionType *> functions;
380 // instead of functions needing adapters, this really ought to look for
381 // any function mentioning a polymorphic type
382 findAndReplaceFunction( newType, functions, tyVars, needsAdapter );
383 if ( ! functions.empty() ) {
384 actual = new CastExpr( actual, newType );
385 } else {
386 delete newType;
387 } // if
388 }
[6c3744e]389
[01aeade]390 void Pass1::boxParams( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ) {
[51b73452]391/// std::cout << "function is ";
392/// function->print( std::cout );
[01aeade]393 for ( std::list< DeclarationWithType *>::const_iterator param = function->get_parameters().begin(); param != function->get_parameters().end(); ++param, ++arg ) {
[51b73452]394/// std::cout << "parameter is ";
[b1a6d6b]395/// (*param)->print( std::fcout );
[51b73452]396/// std::cout << std::endl << "argument is ";
397/// (*arg)->print( std::cout );
[01aeade]398 assert( arg != appExpr->get_args().end() );
399 addCast( *arg, (*param)->get_type(), exprTyVars );
400 boxParam( (*param)->get_type(), *arg, exprTyVars );
401 } // for
402 }
[6c3744e]403
[01aeade]404 void Pass1::addInferredParams( ApplicationExpr *appExpr, FunctionType *functionType, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars ) {
405 std::list< Expression *>::iterator cur = arg;
406 for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {
407 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {
408 InferredParams::const_iterator inferParam = appExpr->get_inferParams().find( (*assert)->get_uniqueId() );
409 assert( inferParam != appExpr->get_inferParams().end() );
410 Expression *newExpr = inferParam->second.expr->clone();
411 addCast( newExpr, (*assert)->get_type(), tyVars );
412 boxParam( (*assert)->get_type(), newExpr, tyVars );
413 appExpr->get_args().insert( cur, newExpr );
414 } // for
415 } // for
416 }
[6c3744e]417
[01aeade]418 void makeRetParm( FunctionType *funcType ) {
419 DeclarationWithType *retParm = funcType->get_returnVals().front();
[6c3744e]420
[01aeade]421 // make a new parameter that is a pointer to the type of the old return value
422 retParm->set_type( new PointerType( Type::Qualifiers(), retParm->get_type() ) );
423 funcType->get_parameters().push_front( retParm );
[6c3744e]424
[01aeade]425 // we don't need the return value any more
426 funcType->get_returnVals().clear();
427 }
[6c3744e]428
[01aeade]429 FunctionType *makeAdapterType( FunctionType *adaptee, const TyVarMap &tyVars ) {
430 // actually make the adapter type
431 FunctionType *adapter = adaptee->clone();
432 if ( ! adapter->get_returnVals().empty() && isPolyVal( adapter->get_returnVals().front()->get_type(), tyVars ) ) {
433 makeRetParm( adapter );
434 } // if
435 adapter->get_parameters().push_front( new ObjectDecl( "", Declaration::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), new FunctionType( Type::Qualifiers(), true ) ), 0 ) );
436 return adapter;
437 }
[6c3744e]438
[01aeade]439 Expression *makeAdapterArg( DeclarationWithType *param, DeclarationWithType *arg, DeclarationWithType *realParam, const TyVarMap &tyVars ) {
440 assert( param );
441 assert( arg );
[51b73452]442/// std::cout << "arg type is ";
443/// arg->get_type()->print( std::cout );
444/// std::cout << "param type is ";
445/// param->get_type()->print( std::cout );
446/// std::cout << " tyVars are: ";
447/// printTyVarMap( std::cout, tyVars );
[01aeade]448 if ( isPolyVal( realParam->get_type(), tyVars ) ) {
[6c3744e]449/// if ( dynamic_cast< PointerType *>( arg->get_type() ) ) {
[51b73452]450/// return new CastExpr( new VariableExpr( param ), arg->get_type()->clone() );
451/// } else {
[01aeade]452 UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) );
453 deref->get_args().push_back( new CastExpr( new VariableExpr( param ), new PointerType( Type::Qualifiers(), arg->get_type()->clone() ) ) );
454 deref->get_results().push_back( arg->get_type()->clone() );
455 return deref;
[51b73452]456/// }
[01aeade]457 } // if
458 return new VariableExpr( param );
459 }
[6c3744e]460
[01aeade]461 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 ) {
462 UniqueName paramNamer( "_p" );
463 for ( ; param != paramEnd; ++param, ++arg, ++realParam ) {
464 if ( (*param)->get_name() == "" ) {
465 (*param)->set_name( paramNamer.newName() );
466 (*param)->set_linkage( LinkageSpec::C );
467 } // if
468 adapteeApp->get_args().push_back( makeAdapterArg( *param, *arg, *realParam, tyVars ) );
469 } // for
470 }
[6c3744e]471
[b1a6d6b]472
473
[01aeade]474 FunctionDecl *Pass1::makeAdapter( FunctionType *adaptee, FunctionType *realType, const std::string &mangleName, const TyVarMap &tyVars ) {
475 FunctionType *adapterType = makeAdapterType( adaptee, tyVars );
476 adapterType = ScrubTyVars::scrub( adapterType, tyVars );
477 DeclarationWithType *adapteeDecl = adapterType->get_parameters().front();
478 adapteeDecl->set_name( "_adaptee" );
479 ApplicationExpr *adapteeApp = new ApplicationExpr( new CastExpr( new VariableExpr( adapteeDecl ), new PointerType( Type::Qualifiers(), realType ) ) );
480 Statement *bodyStmt;
[51b73452]481
[01aeade]482 std::list< TypeDecl *>::iterator tyArg = realType->get_forall().begin();
483 std::list< TypeDecl *>::iterator tyParam = adapterType->get_forall().begin();
484 std::list< TypeDecl *>::iterator realTyParam = adaptee->get_forall().begin();
485 for ( ; tyParam != adapterType->get_forall().end(); ++tyArg, ++tyParam, ++realTyParam ) {
486 assert( tyArg != realType->get_forall().end() );
487 std::list< DeclarationWithType *>::iterator assertArg = (*tyArg)->get_assertions().begin();
488 std::list< DeclarationWithType *>::iterator assertParam = (*tyParam)->get_assertions().begin();
489 std::list< DeclarationWithType *>::iterator realAssertParam = (*realTyParam)->get_assertions().begin();
490 for ( ; assertParam != (*tyParam)->get_assertions().end(); ++assertArg, ++assertParam, ++realAssertParam ) {
491 assert( assertArg != (*tyArg)->get_assertions().end() );
492 adapteeApp->get_args().push_back( makeAdapterArg( *assertParam, *assertArg, *realAssertParam, tyVars ) );
493 } // for
494 } // for
[51b73452]495
[01aeade]496 std::list< DeclarationWithType *>::iterator arg = realType->get_parameters().begin();
497 std::list< DeclarationWithType *>::iterator param = adapterType->get_parameters().begin();
498 std::list< DeclarationWithType *>::iterator realParam = adaptee->get_parameters().begin();
499 param++; // skip adaptee parameter
500 if ( realType->get_returnVals().empty() ) {
501 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
502 bodyStmt = new ExprStmt( noLabels, adapteeApp );
503 } else if ( isPolyVal( adaptee->get_returnVals().front()->get_type(), tyVars ) ) {
504 if ( (*param)->get_name() == "" ) {
505 (*param)->set_name( "_ret" );
506 (*param)->set_linkage( LinkageSpec::C );
507 } // if
508 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) );
509 UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) );
510 deref->get_args().push_back( new CastExpr( new VariableExpr( *param++ ), new PointerType( Type::Qualifiers(), realType->get_returnVals().front()->get_type()->clone() ) ) );
511 assign->get_args().push_back( deref );
512 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
513 assign->get_args().push_back( adapteeApp );
514 bodyStmt = new ExprStmt( noLabels, assign );
515 } else {
516 // adapter for a function that returns a monomorphic value
517 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
518 bodyStmt = new ReturnStmt( noLabels, adapteeApp );
519 } // if
520 CompoundStmt *adapterBody = new CompoundStmt( noLabels );
521 adapterBody->get_kids().push_back( bodyStmt );
522 std::string adapterName = makeAdapterName( mangleName );
523 return new FunctionDecl( adapterName, Declaration::NoStorageClass, LinkageSpec::C, adapterType, adapterBody, false );
524 }
[6c3744e]525
[01aeade]526 void Pass1::passAdapters( ApplicationExpr *appExpr, FunctionType *functionType, const TyVarMap &exprTyVars ) {
527 std::list< DeclarationWithType *> &paramList = functionType->get_parameters();
528 std::list< FunctionType *> functions;
529 for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {
530 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {
531 findFunction( (*assert)->get_type(), functions, exprTyVars, needsAdapter );
532 } // for
533 } // for
534 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
535 findFunction( (*arg)->get_type(), functions, exprTyVars, needsAdapter );
536 } // for
537 std::set< std::string > adaptersDone;
538 for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) {
539 FunctionType *realFunction = (*funType)->clone();
540 assert( env );
541 env->apply( realFunction );
542
543 std::string mangleName = SymTab::Mangler::mangle( realFunction );
544 if ( adaptersDone.find( mangleName ) == adaptersDone.end() ) {
545 AdapterMap & adapters = Pass1::adapters.top();
546 AdapterMap::iterator adapter = adapters.find( mangleName );
547
548 if ( needsAdapter( realFunction, exprTyVars, true ) ) {
549 // the function still contains type variables, which means we are in a polymorphic
550 // context and the adapter function is a parameter - call the parameter and don't
551 // create a new adapter.
552 appExpr->get_args().push_front( new NameExpr( makeAdapterName ( mangleName ) ) );
553 continue;
554 } else if ( adapter == adapters.end() ) {
555 FunctionDecl *newAdapter = makeAdapter( *funType, realFunction, mangleName, exprTyVars );
556 adapter = adapters.insert( adapters.begin(), std::pair< std::string, FunctionDecl *>( mangleName, newAdapter ) );
557 stmtsToAdd.push_back( new DeclStmt( noLabels, newAdapter ) );
558 } // if
559 assert( adapter != adapters.end() );
560 appExpr->get_args().push_front( new VariableExpr( adapter->second ) );
561 // appExpr->get_args().push_front( new NameExpr( makeAdapterName ( mangleName ) ) );
562 adaptersDone.insert( adaptersDone.begin(), mangleName );
563 } // if
564 } // for
565 }
[6c3744e]566
[01aeade]567 TypeInstType *isPolyPtr( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) {
568 if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) {
569 return isPolyType( ptr->get_base(), env, tyVars );
570 } else if ( env ) {
571 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
572 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
573 return isPolyPtr( newType, env, tyVars );
574 } // if
575 } // if
[6c3744e]576 } // if
[01aeade]577 return 0;
578 }
579
580 TypeInstType *isPolyPtrPtr( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) {
581 if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) {
582 return isPolyPtr( ptr->get_base(), env, tyVars );
583 } else if ( env ) {
584 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
585 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
586 return isPolyPtrPtr( newType, env, tyVars );
587 } // if
588 } // if
[6c3744e]589 } // if
[01aeade]590 return 0;
591 }
592
593 Expression *makeIncrDecrExpr( ApplicationExpr *appExpr, std::string polyName, bool isIncr ) {
594 NameExpr *opExpr;
595 if ( isIncr ) {
596 opExpr = new NameExpr( "?+=?" );
597 } else {
598 opExpr = new NameExpr( "?-=?" );
[6c3744e]599 } // if
[01aeade]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() );
[6c3744e]605 } // if
[01aeade]606 addAssign->get_args().push_back( new NameExpr( polyName ) );
607 addAssign->get_results().front() = appExpr->get_results().front()->clone();
608 if ( appExpr->get_env() ) {
609 addAssign->set_env( appExpr->get_env() );
[6c3744e]610 appExpr->set_env( 0 );
611 } // if
[01aeade]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 TypeInstType *typeInst1 = isPolyPtr( appExpr->get_args().front()->get_results().front(), env, scopeTyVars );
624 TypeInstType *typeInst2 = isPolyPtr( appExpr->get_args().back()->get_results().front(), env, scopeTyVars );
625 assert( ! typeInst1 || ! typeInst2 );
626 UntypedExpr *ret = 0;
627 if ( typeInst1 || typeInst2 ) {
628 ret = new UntypedExpr( new NameExpr( "?+?" ) );
629 } // if
630 if ( typeInst1 ) {
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( typeInst1->get_name() ) );
634 ret->get_args().push_back( appExpr->get_args().front() );
635 ret->get_args().push_back( multiply );
636 } else if ( typeInst2 ) {
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( typeInst2->get_name() ) );
640 ret->get_args().push_back( multiply );
641 ret->get_args().push_back( appExpr->get_args().back() );
642 } // if
643 if ( typeInst1 || typeInst2 ) {
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(), env, scopeTyVars ) ) {
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 ( TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars ) ) {
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, typeInst->get_name(), 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 ( TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars ) ) {
692 return makeIncrDecrExpr( appExpr, typeInst->get_name(), 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 TypeInstType *typeInst1 = isPolyPtr( appExpr->get_args().front()->get_results().front(), env, scopeTyVars );
698 TypeInstType *typeInst2 = isPolyPtr( appExpr->get_args().back()->get_results().front(), env, scopeTyVars );
699 if ( typeInst1 && typeInst2 ) {
700 UntypedExpr *divide = new UntypedExpr( new NameExpr( "?/?" ) );
701 divide->get_args().push_back( appExpr );
702 divide->get_args().push_back( new NameExpr( typeInst1->get_name() ) );
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 ( typeInst1 ) {
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( typeInst1->get_name() ) );
713 appExpr->get_args().back() = multiply;
714 } else if ( typeInst2 ) {
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( typeInst2->get_name() ) );
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 TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars );
724 if ( typeInst ) {
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( typeInst->get_name() ) );
728 appExpr->get_args().back() = multiply;
729 } // if
730 } // if
731 return appExpr;
732 } // if
[6c3744e]733 } // if
[01aeade]734 return 0;
735 }
[6c3744e]736
[01aeade]737 Expression *Pass1::mutate( ApplicationExpr *appExpr ) {
[51b73452]738/// std::cerr << "mutate appExpr: ";
[6c3744e]739/// for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
[51b73452]740/// std::cerr << i->first << " ";
741/// }
742/// std::cerr << "\n";
[01aeade]743 bool oldUseRetval = useRetval;
744 useRetval = false;
745 appExpr->get_function()->acceptMutator( *this );
746 mutateAll( appExpr->get_args(), *this );
747 useRetval = oldUseRetval;
[51b73452]748
[01aeade]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 );
[51b73452]754
[01aeade]755 if ( Expression *newExpr = handleIntrinsics( appExpr ) ) {
756 return newExpr;
757 } // if
[51b73452]758
[01aeade]759 Expression *ret = appExpr;
[51b73452]760
[01aeade]761 std::list< Expression *>::iterator arg = appExpr->get_args().begin();
762 std::list< Expression *>::iterator paramBegin = appExpr->get_args().begin();
[51b73452]763
[01aeade]764 std::string typeName;
765 if ( isPolyRet( function, typeName ) ) {
766 ret = addPolyRetParam( appExpr, function, typeName, arg );
767 } else if ( needsAdapter( function, scopeTyVars ) ) {
[51b73452]768/// std::cerr << "needs adapter: ";
[6c3744e]769/// for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
[51b73452]770/// std::cerr << i->first << " ";
771/// }
772/// std::cerr << "\n";
[01aeade]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();
[51b73452]777
[01aeade]778 TyVarMap exprTyVars;
779 makeTyVarMap( function, exprTyVars );
[51b73452]780
[01aeade]781 passTypeVars( appExpr, arg, exprTyVars );
782 addInferredParams( appExpr, function, arg, exprTyVars );
[51b73452]783
[01aeade]784 arg = paramBegin;
[51b73452]785
[01aeade]786 boxParams( appExpr, function, arg, exprTyVars );
[6c3744e]787
[01aeade]788 passAdapters( appExpr, function, exprTyVars );
[6c3744e]789
[01aeade]790 return ret;
791 }
[6c3744e]792
[01aeade]793 Expression *Pass1::mutate( UntypedExpr *expr ) {
794 if ( ! expr->get_results().empty() && isPolyType( expr->get_results().front(), env, scopeTyVars ) ) {
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 }
[6c3744e]806
[01aeade]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(), env, scopeTyVars ) ) {
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 }
[6c3744e]821
[01aeade]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() ) {
[51b73452]834/// retStmt->set_expr( mutateExpression( retStmt->get_expr() ) );
[01aeade]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 }
[6c3744e]858
[01aeade]859 Type * Pass1::mutate( PointerType *pointerType ) {
860 TyVarMap oldtyVars = scopeTyVars;
861 makeTyVarMap( pointerType, scopeTyVars );
[51b73452]862
[01aeade]863 Type *ret = Mutator::mutate( pointerType );
[51b73452]864
[01aeade]865 scopeTyVars = oldtyVars;
866 return ret;
867 }
[6c3744e]868
[01aeade]869 Type * Pass1::mutate( FunctionType *functionType ) {
870 TyVarMap oldtyVars = scopeTyVars;
871 makeTyVarMap( functionType, scopeTyVars );
[51b73452]872
[01aeade]873 Type *ret = Mutator::mutate( functionType );
[51b73452]874
[01aeade]875 scopeTyVars = oldtyVars;
876 return ret;
877 }
[51b73452]878
[01aeade]879 void Pass1::doBeginScope() {
880 adapters.push(AdapterMap());
881 }
[b1a6d6b]882
[01aeade]883 void Pass1::doEndScope() {
884 adapters.pop();
885 }
[51b73452]886
887////////////////////////////////////////// Pass2 ////////////////////////////////////////////////////
888
[01aeade]889 Pass2::Pass2() {}
890
891 void Pass2::addAdapters( FunctionType *functionType ) {
892 std::list< DeclarationWithType *> &paramList = functionType->get_parameters();
893 std::list< FunctionType *> functions;
894 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
895 Type *orig = (*arg)->get_type();
896 findAndReplaceFunction( orig, functions, scopeTyVars, needsAdapter );
897 (*arg)->set_type( orig );
898 }
899 std::set< std::string > adaptersDone;
900 for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) {
901 std::string mangleName = SymTab::Mangler::mangle( *funType );
902 if ( adaptersDone.find( mangleName ) == adaptersDone.end() ) {
903 std::string adapterName = makeAdapterName( mangleName );
904 paramList.push_front( new ObjectDecl( adapterName, Declaration::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), makeAdapterType( *funType, scopeTyVars ) ), 0 ) );
905 adaptersDone.insert( adaptersDone.begin(), mangleName );
906 }
907 }
[51b73452]908/// deleteAll( functions );
[01aeade]909 }
[6c3744e]910
[01aeade]911 template< typename DeclClass >
912 DeclClass * Pass2::handleDecl( DeclClass *decl, Type *type ) {
913 DeclClass *ret = static_cast< DeclClass *>( Mutator::mutate( decl ) );
[6c3744e]914
[01aeade]915 return ret;
916 }
[6c3744e]917
[01aeade]918 DeclarationWithType * Pass2::mutate( FunctionDecl *functionDecl ) {
919 return handleDecl( functionDecl, functionDecl->get_functionType() );
920 }
[6c3744e]921
[01aeade]922 ObjectDecl * Pass2::mutate( ObjectDecl *objectDecl ) {
923 return handleDecl( objectDecl, objectDecl->get_type() );
924 }
[6c3744e]925
[01aeade]926 TypeDecl * Pass2::mutate( TypeDecl *typeDecl ) {
927 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
928 if ( typeDecl->get_base() ) {
929 return handleDecl( typeDecl, typeDecl->get_base() );
930 } else {
931 return Mutator::mutate( typeDecl );
932 }
933 }
[6c3744e]934
[01aeade]935 TypedefDecl * Pass2::mutate( TypedefDecl *typedefDecl ) {
936 return handleDecl( typedefDecl, typedefDecl->get_base() );
937 }
[6c3744e]938
[01aeade]939 Type * Pass2::mutate( PointerType *pointerType ) {
940 TyVarMap oldtyVars = scopeTyVars;
941 makeTyVarMap( pointerType, scopeTyVars );
[51b73452]942
[01aeade]943 Type *ret = Mutator::mutate( pointerType );
[51b73452]944
[01aeade]945 scopeTyVars = oldtyVars;
946 return ret;
947 }
[6c3744e]948
[01aeade]949 Type *Pass2::mutate( FunctionType *funcType ) {
950 TyVarMap oldtyVars = scopeTyVars;
951 makeTyVarMap( funcType, scopeTyVars );
[51b73452]952
[01aeade]953 std::string typeName;
954 if ( isPolyRet( funcType, typeName ) ) {
955 DeclarationWithType *ret = funcType->get_returnVals().front();
956 ret->set_type( new PointerType( Type::Qualifiers(), ret->get_type() ) );
957 funcType->get_parameters().push_front( ret );
958 funcType->get_returnVals().pop_front();
959 }
[51b73452]960
[01aeade]961 std::list< DeclarationWithType *>::iterator last = funcType->get_parameters().begin();
962 std::list< DeclarationWithType *> inferredParams;
963 ObjectDecl *newObj = new ObjectDecl( "", Declaration::NoStorageClass, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ), 0 );
[51b73452]964/// ObjectDecl *newFunPtr = new ObjectDecl( "", Declaration::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), new FunctionType( Type::Qualifiers(), true ) ), 0 );
[01aeade]965 for ( std::list< TypeDecl *>::const_iterator tyParm = funcType->get_forall().begin(); tyParm != funcType->get_forall().end(); ++tyParm ) {
966 ObjectDecl *thisParm;
967 if ( (*tyParm)->get_kind() == TypeDecl::Any ) {
968 thisParm = newObj->clone();
969 thisParm->set_name( (*tyParm)->get_name() );
970 last = funcType->get_parameters().insert( last, thisParm );
971 ++last;
972 }
973 for ( std::list< DeclarationWithType *>::iterator assert = (*tyParm)->get_assertions().begin(); assert != (*tyParm)->get_assertions().end(); ++assert ) {
[6c3744e]974/// *assert = (*assert)->acceptMutator( *this );
[01aeade]975 inferredParams.push_back( *assert );
976 }
977 (*tyParm)->get_assertions().clear();
978 }
979 delete newObj;
980 funcType->get_parameters().splice( last, inferredParams );
981 addAdapters( funcType );
982 mutateAll( funcType->get_returnVals(), *this );
983 mutateAll( funcType->get_parameters(), *this );
[51b73452]984
[01aeade]985 scopeTyVars = oldtyVars;
986 return funcType;
987 }
[51b73452]988
989////////////////////////////////////////// Pass3 ////////////////////////////////////////////////////
990
[01aeade]991 template< typename DeclClass >
992 DeclClass * Pass3::handleDecl( DeclClass *decl, Type *type ) {
993 TyVarMap oldtyVars = scopeTyVars;
994 makeTyVarMap( type, scopeTyVars );
[51b73452]995
[01aeade]996 DeclClass *ret = static_cast< DeclClass *>( Mutator::mutate( decl ) );
997 ScrubTyVars::scrub( decl, scopeTyVars );
[6c3744e]998
[01aeade]999 scopeTyVars = oldtyVars;
1000 return ret;
1001 }
[6c3744e]1002
[01aeade]1003 ObjectDecl * Pass3::mutate( ObjectDecl *objectDecl ) {
1004 return handleDecl( objectDecl, objectDecl->get_type() );
1005 }
[6c3744e]1006
[01aeade]1007 DeclarationWithType * Pass3::mutate( FunctionDecl *functionDecl ) {
1008 return handleDecl( functionDecl, functionDecl->get_functionType() );
1009 }
[6c3744e]1010
[01aeade]1011 TypedefDecl * Pass3::mutate( TypedefDecl *typedefDecl ) {
1012 return handleDecl( typedefDecl, typedefDecl->get_base() );
1013 }
[6c3744e]1014
[01aeade]1015 TypeDecl * Pass3::mutate( TypeDecl *typeDecl ) {
[51b73452]1016/// Initializer *init = 0;
1017/// std::list< Expression *> designators;
1018/// scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
[6c3744e]1019/// if ( typeDecl->get_base() ) {
[51b73452]1020/// init = new SimpleInit( new SizeofExpr( handleDecl( typeDecl, typeDecl->get_base() ) ), designators );
1021/// }
1022/// return new ObjectDecl( typeDecl->get_name(), Declaration::Extern, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::UnsignedInt ), init );
1023
[01aeade]1024 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
1025 return Mutator::mutate( typeDecl );
1026 }
[51b73452]1027
[01aeade]1028 Type * Pass3::mutate( PointerType *pointerType ) {
1029 TyVarMap oldtyVars = scopeTyVars;
1030 makeTyVarMap( pointerType, scopeTyVars );
[51b73452]1031
[01aeade]1032 Type *ret = Mutator::mutate( pointerType );
[51b73452]1033
[01aeade]1034 scopeTyVars = oldtyVars;
1035 return ret;
1036 }
[6c3744e]1037
[01aeade]1038 Type * Pass3::mutate( FunctionType *functionType ) {
1039 TyVarMap oldtyVars = scopeTyVars;
1040 makeTyVarMap( functionType, scopeTyVars );
[51b73452]1041
[01aeade]1042 Type *ret = Mutator::mutate( functionType );
[51b73452]1043
[01aeade]1044 scopeTyVars = oldtyVars;
1045 return ret;
[6c3744e]1046 }
[51b73452]1047
[01aeade]1048 Statement *Pass3::mutate( DeclStmt *declStmt ) {
1049 if ( ObjectDecl *objectDecl = dynamic_cast< ObjectDecl *>( declStmt->get_decl() ) ) {
1050 if ( isPolyVal( objectDecl->get_type(), scopeTyVars ) ) {
1051 TypeInstType *typeInst = dynamic_cast< TypeInstType *>( objectDecl->get_type() );
1052 assert( typeInst );
1053 UntypedExpr *alloc = new UntypedExpr( new NameExpr( "__builtin_alloca" ) );
1054 alloc->get_args().push_back( new NameExpr( typeInst->get_name() ) );
1055 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) );
1056 assign->get_args().push_back( new VariableExpr( objectDecl ) );
1057 assign->get_args().push_back( alloc );
1058 stmtsToAddAfter.push_back( new ExprStmt( noLabels, assign ) );
1059 }
1060 }
1061 return Mutator::mutate( declStmt );
1062 }
1063 } // anonymous namespace
[51b73452]1064} // namespace GenPoly
[01aeade]1065
[51587aa]1066// Local Variables: //
1067// tab-width: 4 //
1068// mode: c++ //
1069// compile-command: "make install" //
1070// End: //
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