source: src/GenPoly/Box.cc@ 5bf4712

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 5bf4712 was ed1065c, checked in by Rob Schluntz <rschlunt@…>, 10 years ago

fixed adapter suffix naming scheme - adding the correct file this time
  • Property mode set to 100644
File size: 47.4 KB
RevLine 
[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
[bdf1954]11// Last Modified By : Rob Schluntz
[ed1065c]12// Last Modified On : Thu Nov 26 17:01:55 2015
13// Update Count : 191
[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
[68cd1ce]28#include "Parser/ParseNode.h"
29
[51b73452]30#include "SynTree/Type.h"
31#include "SynTree/Expression.h"
32#include "SynTree/Initializer.h"
33#include "SynTree/Statement.h"
34#include "SynTree/Mutator.h"
[68cd1ce]35
[51b73452]36#include "ResolvExpr/TypeEnvironment.h"
[68cd1ce]37
[51b73452]38#include "SymTab/Mangler.h"
39
40#include "SemanticError.h"
41#include "UniqueName.h"
42#include "utility.h"
43
44#include <ext/functional> // temporary
45
46namespace GenPoly {
[01aeade]47 namespace {
48 const std::list<Label> noLabels;
49
[e56cfdb0]50 FunctionType *makeAdapterType( FunctionType *adaptee, const TyVarMap &tyVars );
51
[01aeade]52 class Pass1 : public PolyMutator {
53 public:
54 Pass1();
55 virtual Expression *mutate( ApplicationExpr *appExpr );
56 virtual Expression *mutate( AddressExpr *addrExpr );
57 virtual Expression *mutate( UntypedExpr *expr );
58 virtual DeclarationWithType* mutate( FunctionDecl *functionDecl );
59 virtual TypeDecl *mutate( TypeDecl *typeDecl );
60 virtual Expression *mutate( CommaExpr *commaExpr );
61 virtual Expression *mutate( ConditionalExpr *condExpr );
62 virtual Statement *mutate(ReturnStmt *catchStmt);
63 virtual Type *mutate( PointerType *pointerType );
64 virtual Type *mutate( FunctionType *pointerType );
[51b73452]65
[01aeade]66 virtual void doBeginScope();
67 virtual void doEndScope();
68 private:
69 void passTypeVars( ApplicationExpr *appExpr, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars );
70 Expression *addRetParam( ApplicationExpr *appExpr, FunctionType *function, Type *retType, std::list< Expression *>::iterator &arg );
71 Expression *addPolyRetParam( ApplicationExpr *appExpr, FunctionType *function, std::string typeName, std::list< Expression *>::iterator &arg );
72 Expression *applyAdapter( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars );
73 void boxParam( Type *formal, Expression *&arg, const TyVarMap &exprTyVars );
74 void boxParams( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars );
75 void addInferredParams( ApplicationExpr *appExpr, FunctionType *functionType, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars );
76 void findAssignOps( const std::list< TypeDecl *> &forall );
77 void passAdapters( ApplicationExpr *appExpr, FunctionType *functionType, const TyVarMap &exprTyVars );
78 FunctionDecl *makeAdapter( FunctionType *adaptee, FunctionType *realType, const std::string &mangleName, const TyVarMap &tyVars );
79 Expression *handleIntrinsics( ApplicationExpr *appExpr );
80 ObjectDecl *makeTemporary( Type *type );
[c29d9ce]81
[e56cfdb0]82 typedef std::map< std::string, DeclarationWithType *> AdapterMap;
[c29d9ce]83 std::map< std::string, DeclarationWithType *> assignOps;
[01aeade]84 std::stack< AdapterMap > adapters;
85 DeclarationWithType *retval;
86 bool useRetval;
87 UniqueName tempNamer;
88 };
89
90 class Pass2 : public PolyMutator {
91 public:
92 Pass2();
93 template< typename DeclClass >
94 DeclClass *handleDecl( DeclClass *decl, Type *type );
95 virtual DeclarationWithType *mutate( FunctionDecl *functionDecl );
96 virtual ObjectDecl *mutate( ObjectDecl *objectDecl );
97 virtual TypeDecl *mutate( TypeDecl *typeDecl );
98 virtual TypedefDecl *mutate( TypedefDecl *typedefDecl );
99 virtual Type *mutate( PointerType *pointerType );
100 virtual Type *mutate( FunctionType *funcType );
101 private:
102 void addAdapters( FunctionType *functionType );
[51b73452]103
[01aeade]104 std::map< UniqueId, std::string > adapterName;
105 };
106
107 class Pass3 : public PolyMutator {
108 public:
109 template< typename DeclClass >
110 DeclClass *handleDecl( DeclClass *decl, Type *type );
111 virtual DeclarationWithType *mutate( FunctionDecl *functionDecl );
112 virtual ObjectDecl *mutate( ObjectDecl *objectDecl );
113 virtual TypedefDecl *mutate( TypedefDecl *objectDecl );
114 virtual TypeDecl *mutate( TypeDecl *objectDecl );
115 virtual Statement *mutate( DeclStmt *declStmt );
116 virtual Type *mutate( PointerType *pointerType );
117 virtual Type *mutate( FunctionType *funcType );
118 private:
119 };
120
121 } // anonymous namespace
122
123 void printAllNotBuiltin( const std::list< Declaration *>& translationUnit, std::ostream &os ) {
124 for ( std::list< Declaration *>::const_iterator i = translationUnit.begin(); i != translationUnit.end(); ++i ) {
125 if ( ! LinkageSpec::isBuiltin( (*i)->get_linkage() ) ) {
126 (*i)->print( os );
127 os << std::endl;
[6c3744e]128 } // if
[01aeade]129 } // for
[6c3744e]130 }
131
[01aeade]132 void box( std::list< Declaration *>& translationUnit ) {
133 Pass1 pass1;
134 Pass2 pass2;
135 Pass3 pass3;
136 mutateAll( translationUnit, pass1 );
137 mutateAll( translationUnit, pass2 );
138 mutateAll( translationUnit, pass3 );
[6c3744e]139 }
140
[01aeade]141 ////////////////////////////////////////// Pass1 ////////////////////////////////////////////////////
142
143 namespace {
[bdf1954]144 std::string makePolyMonoSuffix( FunctionType * function, const TyVarMap &tyVars ) {
145 std::stringstream name;
146
[ed1065c]147 // NOTE: this function previously used isPolyObj, which failed to produce
148 // the correct thing in some situations. It's not clear to me why this wasn't working.
149
[bdf1954]150 // if the return type or a parameter type involved polymorphic types, then the adapter will need
151 // to take those polymorphic types as pointers. Therefore, there can be two different functions
152 // with the same mangled name, so we need to further mangle the names.
[ed1065c]153 for ( std::list< DeclarationWithType *>::iterator retval = function->get_returnVals().begin(); retval != function->get_returnVals().end(); ++retval ) {
154 if ( isPolyVal( (*retval)->get_type(), tyVars ) ) {
155 name << "P";
156 } else {
157 name << "M";
158 }
[bdf1954]159 }
160 name << "_";
161 std::list< DeclarationWithType *> &paramList = function->get_parameters();
162 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
[ed1065c]163 if ( isPolyVal( (*arg)->get_type(), tyVars ) ) {
[bdf1954]164 name << "P";
165 } else {
166 name << "M";
167 }
168 } // for
169 return name.str();
170 }
171
172 std::string mangleAdapterName( FunctionType * function, const TyVarMap &tyVars ) {
173 return SymTab::Mangler::mangle( function ) + makePolyMonoSuffix( function, tyVars );
174 }
175
[01aeade]176 std::string makeAdapterName( const std::string &mangleName ) {
177 return "_adapter" + mangleName;
178 }
[6c3744e]179
[01aeade]180 Pass1::Pass1()
181 : useRetval( false ), tempNamer( "_temp" ) {
[e56cfdb0]182 adapters.push(AdapterMap());
[01aeade]183 }
184
185 bool checkAssignment( DeclarationWithType *decl, std::string &name ) {
186 if ( decl->get_name() == "?=?" ) {
187 if ( PointerType *ptrType = dynamic_cast< PointerType *>( decl->get_type() ) ) {
188 if ( FunctionType *funType = dynamic_cast< FunctionType *>( ptrType->get_base() ) ) {
189 if ( funType->get_parameters().size() == 2 ) {
190 if ( PointerType *pointer = dynamic_cast< PointerType *>( funType->get_parameters().front()->get_type() ) ) {
191 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( pointer->get_base() ) ) {
192 name = typeInst->get_name();
193 return true;
194 } // if
195 } // if
196 } // if
197 } // if
198 } // if
199 } // if
200 return false;
201 }
202
203 void Pass1::findAssignOps( const std::list< TypeDecl *> &forall ) {
[ed1065c]204 // what if a nested function uses an assignment operator?
205 // assignOps.clear();
[01aeade]206 for ( std::list< TypeDecl *>::const_iterator i = forall.begin(); i != forall.end(); ++i ) {
207 for ( std::list< DeclarationWithType *>::const_iterator assert = (*i)->get_assertions().begin(); assert != (*i)->get_assertions().end(); ++assert ) {
208 std::string typeName;
209 if ( checkAssignment( *assert, typeName ) ) {
210 assignOps[ typeName ] = *assert;
211 } // if
212 } // for
213 } // for
214 }
215
[82dd287]216 DeclarationWithType *Pass1::mutate( FunctionDecl *functionDecl ) {
[e56cfdb0]217 if ( functionDecl->get_statements() ) { // empty routine body ?
218 doBeginScope();
[01aeade]219 TyVarMap oldtyVars = scopeTyVars;
[ed1065c]220 std::map< std::string, DeclarationWithType *> oldassignOps = assignOps;
[01aeade]221 DeclarationWithType *oldRetval = retval;
222 bool oldUseRetval = useRetval;
[e56cfdb0]223
224 // process polymorphic return value
[01aeade]225 retval = 0;
226 std::string typeName;
227 if ( isPolyRet( functionDecl->get_functionType(), typeName ) && functionDecl->get_linkage() == LinkageSpec::Cforall ) {
228 retval = functionDecl->get_functionType()->get_returnVals().front();
[51b73452]229
[01aeade]230 // give names to unnamed return values
231 if ( retval->get_name() == "" ) {
232 retval->set_name( "_retparm" );
233 retval->set_linkage( LinkageSpec::C );
234 } // if
235 } // if
236
[e56cfdb0]237 FunctionType *functionType = functionDecl->get_functionType();
[01aeade]238 makeTyVarMap( functionDecl->get_functionType(), scopeTyVars );
239 findAssignOps( functionDecl->get_functionType()->get_forall() );
[e56cfdb0]240
241 std::list< DeclarationWithType *> &paramList = functionType->get_parameters();
242 std::list< FunctionType *> functions;
243 for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {
244 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {
245 findFunction( (*assert)->get_type(), functions, scopeTyVars, needsAdapter );
246 } // for
247 } // for
248 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
249 findFunction( (*arg)->get_type(), functions, scopeTyVars, needsAdapter );
250 } // for
251 AdapterMap & adapters = Pass1::adapters.top();
252 for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) {
[bdf1954]253 std::string mangleName = mangleAdapterName( *funType, scopeTyVars );
[e56cfdb0]254 if ( adapters.find( mangleName ) == adapters.end() ) {
255 std::string adapterName = makeAdapterName( mangleName );
256 adapters.insert( std::pair< std::string, DeclarationWithType *>( mangleName, new ObjectDecl( adapterName, DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), makeAdapterType( *funType, scopeTyVars ) ), 0 ) ) );
257 } // if
258 } // for
259
[01aeade]260 functionDecl->set_statements( functionDecl->get_statements()->acceptMutator( *this ) );
[51b73452]261
[01aeade]262 scopeTyVars = oldtyVars;
[ed1065c]263 assignOps = oldassignOps;
[e56cfdb0]264 // std::cerr << "end FunctionDecl: ";
265 // for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
266 // std::cerr << i->first << " ";
267 // }
268 // std::cerr << "\n";
[01aeade]269 retval = oldRetval;
270 useRetval = oldUseRetval;
[e56cfdb0]271 doEndScope();
[01aeade]272 } // if
273 return functionDecl;
274 }
[6c3744e]275
[01aeade]276 TypeDecl *Pass1::mutate( TypeDecl *typeDecl ) {
[51b73452]277/// std::cerr << "add " << typeDecl->get_name() << "\n";
[01aeade]278 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
279 return Mutator::mutate( typeDecl );
280 }
[6c3744e]281
[01aeade]282 Expression *Pass1::mutate( CommaExpr *commaExpr ) {
283 bool oldUseRetval = useRetval;
284 useRetval = false;
285 commaExpr->set_arg1( maybeMutate( commaExpr->get_arg1(), *this ) );
286 useRetval = oldUseRetval;
287 commaExpr->set_arg2( maybeMutate( commaExpr->get_arg2(), *this ) );
288 return commaExpr;
289 }
[6c3744e]290
[01aeade]291 Expression *Pass1::mutate( ConditionalExpr *condExpr ) {
292 bool oldUseRetval = useRetval;
293 useRetval = false;
294 condExpr->set_arg1( maybeMutate( condExpr->get_arg1(), *this ) );
295 useRetval = oldUseRetval;
296 condExpr->set_arg2( maybeMutate( condExpr->get_arg2(), *this ) );
297 condExpr->set_arg3( maybeMutate( condExpr->get_arg3(), *this ) );
298 return condExpr;
[6c3744e]299
[01aeade]300 }
[6c3744e]301
[01aeade]302 void Pass1::passTypeVars( ApplicationExpr *appExpr, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ) {
303 for ( TyVarMap::const_iterator tyParm = exprTyVars.begin(); tyParm != exprTyVars.end(); ++tyParm ) {
304 ResolvExpr::EqvClass eqvClass;
305 assert( env );
306 if ( tyParm->second == TypeDecl::Any ) {
307 Type *concrete = env->lookup( tyParm->first );
308 if ( concrete ) {
309 arg = appExpr->get_args().insert( arg, new SizeofExpr( concrete->clone() ) );
310 arg++;
311 } else {
312 throw SemanticError( "unbound type variable in application ", appExpr );
313 } // if
314 } // if
315 } // for
316 }
[6c3744e]317
[01aeade]318 ObjectDecl *Pass1::makeTemporary( Type *type ) {
[68cd1ce]319 ObjectDecl *newObj = new ObjectDecl( tempNamer.newName(), DeclarationNode::NoStorageClass, LinkageSpec::C, 0, type, 0 );
[01aeade]320 stmtsToAdd.push_back( new DeclStmt( noLabels, newObj ) );
321 return newObj;
322 }
[6c3744e]323
[01aeade]324 TypeInstType *isPolyType( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) {
325 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
326 if ( env ) {
327 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
328 return isPolyType( newType, env, tyVars );
329 } // if
330 } // if
331 if ( tyVars.find( typeInst->get_name() ) != tyVars.end() ) {
332 return typeInst;
333 } else {
334 return 0;
335 } // if
336 } else {
337 return 0;
338 } // if
339 }
[6c3744e]340
[01aeade]341 Expression *Pass1::addRetParam( ApplicationExpr *appExpr, FunctionType *function, Type *retType, std::list< Expression *>::iterator &arg ) {
342 if ( useRetval ) {
343 assert( retval );
344 arg = appExpr->get_args().insert( arg, new VariableExpr( retval ) );
345 arg++;
346 } else {
347 ObjectDecl *newObj = makeTemporary( retType->clone() );
348 Expression *paramExpr = new VariableExpr( newObj );
349 if ( ! isPolyType( newObj->get_type(), env, scopeTyVars ) ) {
350 paramExpr = new AddressExpr( paramExpr );
351 } // if
352 arg = appExpr->get_args().insert( arg, paramExpr );
353 arg++;
[51b73452]354/// stmtsToAdd.push_back( new ExprStmt( noLabels, appExpr ) );
[01aeade]355 CommaExpr *commaExpr = new CommaExpr( appExpr, new VariableExpr( newObj ) );
356 commaExpr->set_env( appExpr->get_env() );
357 appExpr->set_env( 0 );
358 return commaExpr;
359 } // if
360 return appExpr;
361 }
[6c3744e]362
[01aeade]363 Expression *Pass1::addPolyRetParam( ApplicationExpr *appExpr, FunctionType *function, std::string typeName, std::list< Expression *>::iterator &arg ) {
364 ResolvExpr::EqvClass eqvClass;
365 assert( env );
366 Type *concrete = env->lookup( typeName );
367 if ( concrete == 0 ) {
368 throw SemanticError( "Unbound type variable " + typeName + " in ", appExpr );
369 } // if
370 return addRetParam( appExpr, function, concrete, arg );
371 }
[6c3744e]372
[01aeade]373 Expression *Pass1::applyAdapter( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars ) {
374 Expression *ret = appExpr;
375 if ( ! function->get_returnVals().empty() && isPolyVal( function->get_returnVals().front()->get_type(), tyVars ) ) {
376 ret = addRetParam( appExpr, function, function->get_returnVals().front()->get_type(), arg );
377 } // if
[bdf1954]378 std::string mangleName = mangleAdapterName( function, tyVars );
[01aeade]379 std::string adapterName = makeAdapterName( mangleName );
[b1a6d6b]380
[01aeade]381 appExpr->get_args().push_front( appExpr->get_function() );
382 appExpr->set_function( new NameExpr( adapterName ) );
[51b73452]383
[01aeade]384 return ret;
385 }
[6c3744e]386
[01aeade]387 void Pass1::boxParam( Type *param, Expression *&arg, const TyVarMap &exprTyVars ) {
388 assert( ! arg->get_results().empty() );
[a32b204]389/// if ( ! dynamic_cast< PointerType *>( arg->get_results().front() ) ) {
[01aeade]390 TypeInstType *typeInst = dynamic_cast< TypeInstType *>( param );
391 if ( typeInst && exprTyVars.find( typeInst->get_name() ) != exprTyVars.end() ) {
392 if ( dynamic_cast< TypeInstType *>( arg->get_results().front() ) ) {
393 // if the argument's type is a type parameter, we don't need to box again!
394 return;
395 } else if ( arg->get_results().front()->get_isLvalue() ) {
396 // VariableExpr and MemberExpr are lvalues
397 arg = new AddressExpr( arg );
398 } else {
[68cd1ce]399 ObjectDecl *newObj = new ObjectDecl( tempNamer.newName(), DeclarationNode::NoStorageClass, LinkageSpec::C, 0, arg->get_results().front()->clone(), 0 );
[f6d7e0f]400 newObj->get_type()->get_qualifiers() = Type::Qualifiers(); // TODO: is this right???
[01aeade]401 stmtsToAdd.push_back( new DeclStmt( noLabels, newObj ) );
402 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) );
403 assign->get_args().push_back( new VariableExpr( newObj ) );
404 assign->get_args().push_back( arg );
405 stmtsToAdd.push_back( new ExprStmt( noLabels, assign ) );
406 arg = new AddressExpr( new VariableExpr( newObj ) );
407 } // if
408 } // if
[51b73452]409/// }
[01aeade]410 }
[6c3744e]411
[01aeade]412 void addCast( Expression *&actual, Type *formal, const TyVarMap &tyVars ) {
413 Type *newType = formal->clone();
414 std::list< FunctionType *> functions;
415 // instead of functions needing adapters, this really ought to look for
416 // any function mentioning a polymorphic type
417 findAndReplaceFunction( newType, functions, tyVars, needsAdapter );
418 if ( ! functions.empty() ) {
419 actual = new CastExpr( actual, newType );
420 } else {
421 delete newType;
422 } // if
423 }
[6c3744e]424
[01aeade]425 void Pass1::boxParams( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ) {
[51b73452]426/// std::cout << "function is ";
427/// function->print( std::cout );
[01aeade]428 for ( std::list< DeclarationWithType *>::const_iterator param = function->get_parameters().begin(); param != function->get_parameters().end(); ++param, ++arg ) {
[51b73452]429/// std::cout << "parameter is ";
[b1a6d6b]430/// (*param)->print( std::fcout );
[51b73452]431/// std::cout << std::endl << "argument is ";
432/// (*arg)->print( std::cout );
[01aeade]433 assert( arg != appExpr->get_args().end() );
434 addCast( *arg, (*param)->get_type(), exprTyVars );
435 boxParam( (*param)->get_type(), *arg, exprTyVars );
436 } // for
437 }
[6c3744e]438
[01aeade]439 void Pass1::addInferredParams( ApplicationExpr *appExpr, FunctionType *functionType, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars ) {
440 std::list< Expression *>::iterator cur = arg;
441 for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {
442 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {
443 InferredParams::const_iterator inferParam = appExpr->get_inferParams().find( (*assert)->get_uniqueId() );
[698664b3]444 assert( inferParam != appExpr->get_inferParams().end() && "NOTE: Explicit casts of polymorphic functions to compatible monomorphic functions are currently unsupported" );
[01aeade]445 Expression *newExpr = inferParam->second.expr->clone();
446 addCast( newExpr, (*assert)->get_type(), tyVars );
447 boxParam( (*assert)->get_type(), newExpr, tyVars );
448 appExpr->get_args().insert( cur, newExpr );
449 } // for
450 } // for
451 }
[6c3744e]452
[01aeade]453 void makeRetParm( FunctionType *funcType ) {
454 DeclarationWithType *retParm = funcType->get_returnVals().front();
[6c3744e]455
[01aeade]456 // make a new parameter that is a pointer to the type of the old return value
457 retParm->set_type( new PointerType( Type::Qualifiers(), retParm->get_type() ) );
458 funcType->get_parameters().push_front( retParm );
[6c3744e]459
[01aeade]460 // we don't need the return value any more
461 funcType->get_returnVals().clear();
462 }
[6c3744e]463
[01aeade]464 FunctionType *makeAdapterType( FunctionType *adaptee, const TyVarMap &tyVars ) {
465 // actually make the adapter type
466 FunctionType *adapter = adaptee->clone();
467 if ( ! adapter->get_returnVals().empty() && isPolyVal( adapter->get_returnVals().front()->get_type(), tyVars ) ) {
468 makeRetParm( adapter );
469 } // if
[68cd1ce]470 adapter->get_parameters().push_front( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), new FunctionType( Type::Qualifiers(), true ) ), 0 ) );
[01aeade]471 return adapter;
472 }
[6c3744e]473
[01aeade]474 Expression *makeAdapterArg( DeclarationWithType *param, DeclarationWithType *arg, DeclarationWithType *realParam, const TyVarMap &tyVars ) {
475 assert( param );
476 assert( arg );
[51b73452]477/// std::cout << "arg type is ";
478/// arg->get_type()->print( std::cout );
479/// std::cout << "param type is ";
480/// param->get_type()->print( std::cout );
481/// std::cout << " tyVars are: ";
482/// printTyVarMap( std::cout, tyVars );
[01aeade]483 if ( isPolyVal( realParam->get_type(), tyVars ) ) {
[6c3744e]484/// if ( dynamic_cast< PointerType *>( arg->get_type() ) ) {
[51b73452]485/// return new CastExpr( new VariableExpr( param ), arg->get_type()->clone() );
486/// } else {
[e56cfdb0]487 if ( dynamic_cast<TypeInstType *>(arg->get_type()) == NULL ) {
488 UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) );
489 deref->get_args().push_back( new CastExpr( new VariableExpr( param ), new PointerType( Type::Qualifiers(), arg->get_type()->clone() ) ) );
490 deref->get_results().push_back( arg->get_type()->clone() );
491 return deref;
492 } // if
[51b73452]493/// }
[01aeade]494 } // if
495 return new VariableExpr( param );
496 }
[6c3744e]497
[01aeade]498 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 ) {
499 UniqueName paramNamer( "_p" );
500 for ( ; param != paramEnd; ++param, ++arg, ++realParam ) {
501 if ( (*param)->get_name() == "" ) {
502 (*param)->set_name( paramNamer.newName() );
503 (*param)->set_linkage( LinkageSpec::C );
504 } // if
505 adapteeApp->get_args().push_back( makeAdapterArg( *param, *arg, *realParam, tyVars ) );
506 } // for
507 }
[6c3744e]508
[b1a6d6b]509
510
[01aeade]511 FunctionDecl *Pass1::makeAdapter( FunctionType *adaptee, FunctionType *realType, const std::string &mangleName, const TyVarMap &tyVars ) {
512 FunctionType *adapterType = makeAdapterType( adaptee, tyVars );
513 adapterType = ScrubTyVars::scrub( adapterType, tyVars );
514 DeclarationWithType *adapteeDecl = adapterType->get_parameters().front();
515 adapteeDecl->set_name( "_adaptee" );
516 ApplicationExpr *adapteeApp = new ApplicationExpr( new CastExpr( new VariableExpr( adapteeDecl ), new PointerType( Type::Qualifiers(), realType ) ) );
517 Statement *bodyStmt;
[51b73452]518
[01aeade]519 std::list< TypeDecl *>::iterator tyArg = realType->get_forall().begin();
520 std::list< TypeDecl *>::iterator tyParam = adapterType->get_forall().begin();
521 std::list< TypeDecl *>::iterator realTyParam = adaptee->get_forall().begin();
522 for ( ; tyParam != adapterType->get_forall().end(); ++tyArg, ++tyParam, ++realTyParam ) {
523 assert( tyArg != realType->get_forall().end() );
524 std::list< DeclarationWithType *>::iterator assertArg = (*tyArg)->get_assertions().begin();
525 std::list< DeclarationWithType *>::iterator assertParam = (*tyParam)->get_assertions().begin();
526 std::list< DeclarationWithType *>::iterator realAssertParam = (*realTyParam)->get_assertions().begin();
527 for ( ; assertParam != (*tyParam)->get_assertions().end(); ++assertArg, ++assertParam, ++realAssertParam ) {
528 assert( assertArg != (*tyArg)->get_assertions().end() );
529 adapteeApp->get_args().push_back( makeAdapterArg( *assertParam, *assertArg, *realAssertParam, tyVars ) );
530 } // for
531 } // for
[51b73452]532
[01aeade]533 std::list< DeclarationWithType *>::iterator arg = realType->get_parameters().begin();
534 std::list< DeclarationWithType *>::iterator param = adapterType->get_parameters().begin();
535 std::list< DeclarationWithType *>::iterator realParam = adaptee->get_parameters().begin();
536 param++; // skip adaptee parameter
537 if ( realType->get_returnVals().empty() ) {
538 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
539 bodyStmt = new ExprStmt( noLabels, adapteeApp );
540 } else if ( isPolyVal( adaptee->get_returnVals().front()->get_type(), tyVars ) ) {
541 if ( (*param)->get_name() == "" ) {
542 (*param)->set_name( "_ret" );
543 (*param)->set_linkage( LinkageSpec::C );
544 } // if
545 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) );
546 UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) );
547 deref->get_args().push_back( new CastExpr( new VariableExpr( *param++ ), new PointerType( Type::Qualifiers(), realType->get_returnVals().front()->get_type()->clone() ) ) );
548 assign->get_args().push_back( deref );
549 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
550 assign->get_args().push_back( adapteeApp );
551 bodyStmt = new ExprStmt( noLabels, assign );
552 } else {
553 // adapter for a function that returns a monomorphic value
554 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
555 bodyStmt = new ReturnStmt( noLabels, adapteeApp );
556 } // if
557 CompoundStmt *adapterBody = new CompoundStmt( noLabels );
558 adapterBody->get_kids().push_back( bodyStmt );
559 std::string adapterName = makeAdapterName( mangleName );
[de62360d]560 return new FunctionDecl( adapterName, DeclarationNode::NoStorageClass, LinkageSpec::C, adapterType, adapterBody, false, false );
[01aeade]561 }
[6c3744e]562
[c29d9ce]563 void Pass1::passAdapters( ApplicationExpr * appExpr, FunctionType * functionType, const TyVarMap & exprTyVars ) {
[e497c1d]564 // collect a list of function types passed as parameters or implicit parameters (assertions)
[01aeade]565 std::list< DeclarationWithType *> &paramList = functionType->get_parameters();
566 std::list< FunctionType *> functions;
567 for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {
568 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {
569 findFunction( (*assert)->get_type(), functions, exprTyVars, needsAdapter );
570 } // for
571 } // for
572 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
573 findFunction( (*arg)->get_type(), functions, exprTyVars, needsAdapter );
574 } // for
[e497c1d]575
[e56cfdb0]576 // parameter function types for which an appropriate adapter has been generated. we cannot use the types
577 // after applying substitutions, since two different parameter types may be unified to the same type
[01aeade]578 std::set< std::string > adaptersDone;
[e497c1d]579
[01aeade]580 for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) {
[c29d9ce]581 FunctionType *originalFunction = (*funType)->clone();
[01aeade]582 FunctionType *realFunction = (*funType)->clone();
583 std::string mangleName = SymTab::Mangler::mangle( realFunction );
[e497c1d]584
[e56cfdb0]585 // only attempt to create an adapter or pass one as a parameter if we haven't already done so for this
586 // pre-substitution parameter function type.
[01aeade]587 if ( adaptersDone.find( mangleName ) == adaptersDone.end() ) {
[e497c1d]588 adaptersDone.insert( adaptersDone.begin(), mangleName );
589
[e56cfdb0]590 // apply substitution to type variables to figure out what the adapter's type should look like
[e497c1d]591 assert( env );
592 env->apply( realFunction );
[bdf1954]593 mangleName = SymTab::Mangler::mangle( realFunction );
594 mangleName += makePolyMonoSuffix( originalFunction, exprTyVars );
[e497c1d]595
[e56cfdb0]596 AdapterMap & adapters = Pass1::adapters.top();
597 AdapterMap::iterator adapter = adapters.find( mangleName );
598 if ( adapter == adapters.end() ) {
599 // adapter has not been created yet in the current scope, so define it
600 FunctionDecl *newAdapter = makeAdapter( *funType, realFunction, mangleName, exprTyVars );
601 adapter = adapters.insert( adapters.begin(), std::pair< std::string, DeclarationWithType *>( mangleName, newAdapter ) );
602 stmtsToAdd.push_back( new DeclStmt( noLabels, newAdapter ) );
[c29d9ce]603 } // if
[e56cfdb0]604 assert( adapter != adapters.end() );
605
606 // add the appropriate adapter as a parameter
607 appExpr->get_args().push_front( new VariableExpr( adapter->second ) );
[01aeade]608 } // if
609 } // for
[e56cfdb0]610 } // passAdapters
[6c3744e]611
[01aeade]612 TypeInstType *isPolyPtr( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) {
613 if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) {
614 return isPolyType( ptr->get_base(), env, tyVars );
615 } else if ( env ) {
616 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
617 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
618 return isPolyPtr( newType, env, tyVars );
619 } // if
620 } // if
[6c3744e]621 } // if
[01aeade]622 return 0;
623 }
624
625 TypeInstType *isPolyPtrPtr( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) {
626 if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) {
627 return isPolyPtr( ptr->get_base(), env, tyVars );
628 } else if ( env ) {
629 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
630 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
631 return isPolyPtrPtr( newType, env, tyVars );
632 } // if
633 } // if
[6c3744e]634 } // if
[01aeade]635 return 0;
636 }
637
638 Expression *makeIncrDecrExpr( ApplicationExpr *appExpr, std::string polyName, bool isIncr ) {
639 NameExpr *opExpr;
640 if ( isIncr ) {
641 opExpr = new NameExpr( "?+=?" );
642 } else {
643 opExpr = new NameExpr( "?-=?" );
[6c3744e]644 } // if
[01aeade]645 UntypedExpr *addAssign = new UntypedExpr( opExpr );
646 if ( AddressExpr *address = dynamic_cast< AddressExpr *>( appExpr->get_args().front() ) ) {
647 addAssign->get_args().push_back( address->get_arg() );
648 } else {
649 addAssign->get_args().push_back( appExpr->get_args().front() );
[6c3744e]650 } // if
[01aeade]651 addAssign->get_args().push_back( new NameExpr( polyName ) );
652 addAssign->get_results().front() = appExpr->get_results().front()->clone();
653 if ( appExpr->get_env() ) {
654 addAssign->set_env( appExpr->get_env() );
[6c3744e]655 appExpr->set_env( 0 );
656 } // if
[01aeade]657 appExpr->get_args().clear();
658 delete appExpr;
659 return addAssign;
660 }
661
662 Expression *Pass1::handleIntrinsics( ApplicationExpr *appExpr ) {
663 if ( VariableExpr *varExpr = dynamic_cast< VariableExpr *>( appExpr->get_function() ) ) {
664 if ( varExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic ) {
665 if ( varExpr->get_var()->get_name() == "?[?]" ) {
666 assert( ! appExpr->get_results().empty() );
667 assert( appExpr->get_args().size() == 2 );
668 TypeInstType *typeInst1 = isPolyPtr( appExpr->get_args().front()->get_results().front(), env, scopeTyVars );
669 TypeInstType *typeInst2 = isPolyPtr( appExpr->get_args().back()->get_results().front(), env, scopeTyVars );
670 assert( ! typeInst1 || ! typeInst2 );
671 UntypedExpr *ret = 0;
672 if ( typeInst1 || typeInst2 ) {
673 ret = new UntypedExpr( new NameExpr( "?+?" ) );
674 } // if
675 if ( typeInst1 ) {
676 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
677 multiply->get_args().push_back( appExpr->get_args().back() );
678 multiply->get_args().push_back( new NameExpr( typeInst1->get_name() ) );
679 ret->get_args().push_back( appExpr->get_args().front() );
680 ret->get_args().push_back( multiply );
681 } else if ( typeInst2 ) {
682 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
683 multiply->get_args().push_back( appExpr->get_args().front() );
684 multiply->get_args().push_back( new NameExpr( typeInst2->get_name() ) );
685 ret->get_args().push_back( multiply );
686 ret->get_args().push_back( appExpr->get_args().back() );
687 } // if
688 if ( typeInst1 || typeInst2 ) {
689 ret->get_results().push_front( appExpr->get_results().front()->clone() );
690 if ( appExpr->get_env() ) {
691 ret->set_env( appExpr->get_env() );
692 appExpr->set_env( 0 );
693 } // if
694 appExpr->get_args().clear();
695 delete appExpr;
696 return ret;
697 } // if
698 } else if ( varExpr->get_var()->get_name() == "*?" ) {
699 assert( ! appExpr->get_results().empty() );
700 assert( ! appExpr->get_args().empty() );
701 if ( isPolyType( appExpr->get_results().front(), env, scopeTyVars ) ) {
702 Expression *ret = appExpr->get_args().front();
703 delete ret->get_results().front();
704 ret->get_results().front() = appExpr->get_results().front()->clone();
705 if ( appExpr->get_env() ) {
706 ret->set_env( appExpr->get_env() );
707 appExpr->set_env( 0 );
708 } // if
709 appExpr->get_args().clear();
710 delete appExpr;
711 return ret;
712 } // if
713 } else if ( varExpr->get_var()->get_name() == "?++" || varExpr->get_var()->get_name() == "?--" ) {
714 assert( ! appExpr->get_results().empty() );
715 assert( appExpr->get_args().size() == 1 );
716 if ( TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars ) ) {
717 Type *tempType = appExpr->get_results().front()->clone();
718 if ( env ) {
719 env->apply( tempType );
720 } // if
721 ObjectDecl *newObj = makeTemporary( tempType );
722 VariableExpr *tempExpr = new VariableExpr( newObj );
723 UntypedExpr *assignExpr = new UntypedExpr( new NameExpr( "?=?" ) );
724 assignExpr->get_args().push_back( tempExpr->clone() );
725 if ( AddressExpr *address = dynamic_cast< AddressExpr *>( appExpr->get_args().front() ) ) {
726 assignExpr->get_args().push_back( address->get_arg()->clone() );
727 } else {
728 assignExpr->get_args().push_back( appExpr->get_args().front()->clone() );
729 } // if
730 CommaExpr *firstComma = new CommaExpr( assignExpr, makeIncrDecrExpr( appExpr, typeInst->get_name(), varExpr->get_var()->get_name() == "?++" ) );
731 return new CommaExpr( firstComma, tempExpr );
732 } // if
733 } else if ( varExpr->get_var()->get_name() == "++?" || varExpr->get_var()->get_name() == "--?" ) {
734 assert( ! appExpr->get_results().empty() );
735 assert( appExpr->get_args().size() == 1 );
736 if ( TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars ) ) {
737 return makeIncrDecrExpr( appExpr, typeInst->get_name(), varExpr->get_var()->get_name() == "++?" );
738 } // if
739 } else if ( varExpr->get_var()->get_name() == "?+?" || varExpr->get_var()->get_name() == "?-?" ) {
740 assert( ! appExpr->get_results().empty() );
741 assert( appExpr->get_args().size() == 2 );
742 TypeInstType *typeInst1 = isPolyPtr( appExpr->get_args().front()->get_results().front(), env, scopeTyVars );
743 TypeInstType *typeInst2 = isPolyPtr( appExpr->get_args().back()->get_results().front(), env, scopeTyVars );
744 if ( typeInst1 && typeInst2 ) {
745 UntypedExpr *divide = new UntypedExpr( new NameExpr( "?/?" ) );
746 divide->get_args().push_back( appExpr );
747 divide->get_args().push_back( new NameExpr( typeInst1->get_name() ) );
748 divide->get_results().push_front( appExpr->get_results().front()->clone() );
749 if ( appExpr->get_env() ) {
750 divide->set_env( appExpr->get_env() );
751 appExpr->set_env( 0 );
752 } // if
753 return divide;
754 } else if ( typeInst1 ) {
755 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
756 multiply->get_args().push_back( appExpr->get_args().back() );
757 multiply->get_args().push_back( new NameExpr( typeInst1->get_name() ) );
758 appExpr->get_args().back() = multiply;
759 } else if ( typeInst2 ) {
760 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
761 multiply->get_args().push_back( appExpr->get_args().front() );
762 multiply->get_args().push_back( new NameExpr( typeInst2->get_name() ) );
763 appExpr->get_args().front() = multiply;
764 } // if
765 } else if ( varExpr->get_var()->get_name() == "?+=?" || varExpr->get_var()->get_name() == "?-=?" ) {
766 assert( ! appExpr->get_results().empty() );
767 assert( appExpr->get_args().size() == 2 );
768 TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars );
769 if ( typeInst ) {
770 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
771 multiply->get_args().push_back( appExpr->get_args().back() );
772 multiply->get_args().push_back( new NameExpr( typeInst->get_name() ) );
773 appExpr->get_args().back() = multiply;
774 } // if
775 } // if
776 return appExpr;
777 } // if
[6c3744e]778 } // if
[01aeade]779 return 0;
780 }
[6c3744e]781
[01aeade]782 Expression *Pass1::mutate( ApplicationExpr *appExpr ) {
[e56cfdb0]783 // std::cerr << "mutate appExpr: ";
784 // for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
785 // std::cerr << i->first << " ";
786 // }
787 // std::cerr << "\n";
[01aeade]788 bool oldUseRetval = useRetval;
789 useRetval = false;
790 appExpr->get_function()->acceptMutator( *this );
791 mutateAll( appExpr->get_args(), *this );
792 useRetval = oldUseRetval;
[51b73452]793
[01aeade]794 assert( ! appExpr->get_function()->get_results().empty() );
795 PointerType *pointer = dynamic_cast< PointerType *>( appExpr->get_function()->get_results().front() );
796 assert( pointer );
797 FunctionType *function = dynamic_cast< FunctionType *>( pointer->get_base() );
798 assert( function );
[51b73452]799
[01aeade]800 if ( Expression *newExpr = handleIntrinsics( appExpr ) ) {
801 return newExpr;
802 } // if
[51b73452]803
[01aeade]804 Expression *ret = appExpr;
[51b73452]805
[01aeade]806 std::list< Expression *>::iterator arg = appExpr->get_args().begin();
807 std::list< Expression *>::iterator paramBegin = appExpr->get_args().begin();
[51b73452]808
[01aeade]809 std::string typeName;
810 if ( isPolyRet( function, typeName ) ) {
811 ret = addPolyRetParam( appExpr, function, typeName, arg );
812 } else if ( needsAdapter( function, scopeTyVars ) ) {
[e56cfdb0]813 // std::cerr << "needs adapter: ";
814 // for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
815 // std::cerr << i->first << " ";
816 // }
817 // std::cerr << "\n";
[01aeade]818 // change the application so it calls the adapter rather than the passed function
819 ret = applyAdapter( appExpr, function, arg, scopeTyVars );
820 } // if
821 arg = appExpr->get_args().begin();
[51b73452]822
[01aeade]823 TyVarMap exprTyVars;
824 makeTyVarMap( function, exprTyVars );
[51b73452]825
[01aeade]826 passTypeVars( appExpr, arg, exprTyVars );
827 addInferredParams( appExpr, function, arg, exprTyVars );
[51b73452]828
[01aeade]829 arg = paramBegin;
[51b73452]830
[01aeade]831 boxParams( appExpr, function, arg, exprTyVars );
[6c3744e]832
[01aeade]833 passAdapters( appExpr, function, exprTyVars );
[6c3744e]834
[01aeade]835 return ret;
836 }
[6c3744e]837
[01aeade]838 Expression *Pass1::mutate( UntypedExpr *expr ) {
839 if ( ! expr->get_results().empty() && isPolyType( expr->get_results().front(), env, scopeTyVars ) ) {
840 if ( NameExpr *name = dynamic_cast< NameExpr *>( expr->get_function() ) ) {
841 if ( name->get_name() == "*?" ) {
842 Expression *ret = expr->get_args().front();
843 expr->get_args().clear();
844 delete expr;
845 return ret->acceptMutator( *this );
846 } // if
847 } // if
848 } // if
849 return PolyMutator::mutate( expr );
850 }
[6c3744e]851
[01aeade]852 Expression *Pass1::mutate( AddressExpr *addrExpr ) {
853 assert( ! addrExpr->get_arg()->get_results().empty() );
854 addrExpr->set_arg( mutateExpression( addrExpr->get_arg() ) );
855 if ( isPolyType( addrExpr->get_arg()->get_results().front(), env, scopeTyVars ) ) {
856 Expression *ret = addrExpr->get_arg();
857 delete ret->get_results().front();
858 ret->get_results().front() = addrExpr->get_results().front()->clone();
859 addrExpr->set_arg( 0 );
860 delete addrExpr;
861 return ret;
862 } else {
863 return addrExpr;
864 } // if
865 }
[6c3744e]866
[01aeade]867 Statement * Pass1::mutate(ReturnStmt *retStmt) {
868 // a cast expr on a polymorphic return value is either redundant or invalid
869 while ( CastExpr *castExpr = dynamic_cast< CastExpr *>( retStmt->get_expr() ) ) {
870 retStmt->set_expr( castExpr->get_arg() );
871 retStmt->get_expr()->set_env( castExpr->get_env() );
872 castExpr->set_env( 0 );
873 castExpr->set_arg( 0 );
874 delete castExpr;
875 }
876 if ( retval && retStmt->get_expr() ) {
877 assert( ! retStmt->get_expr()->get_results().empty() );
878 if ( retStmt->get_expr()->get_results().front()->get_isLvalue() ) {
[51b73452]879/// retStmt->set_expr( mutateExpression( retStmt->get_expr() ) );
[01aeade]880 TypeInstType *typeInst = dynamic_cast< TypeInstType *>( retval->get_type() );
881 assert( typeInst );
882 std::map< std::string, DeclarationWithType *>::const_iterator assignIter = assignOps.find( typeInst->get_name() );
883 if ( assignIter == assignOps.end() ) {
884 throw SemanticError( "Attempt to return dtype or ftype object in ", retStmt->get_expr() );
885 } // if
886 ApplicationExpr *assignExpr = new ApplicationExpr( new VariableExpr( assignIter->second ) );
887 Expression *retParm = new NameExpr( retval->get_name() );
888 retParm->get_results().push_back( new PointerType( Type::Qualifiers(), retval->get_type()->clone() ) );
889 assignExpr->get_args().push_back( retParm );
890 assignExpr->get_args().push_back( retStmt->get_expr() );
891 stmtsToAdd.push_back( new ExprStmt( noLabels, mutateExpression( assignExpr ) ) );
892 } else {
893 useRetval = true;
894 stmtsToAdd.push_back( new ExprStmt( noLabels, mutateExpression( retStmt->get_expr() ) ) );
895 useRetval = false;
896 } // if
897 retStmt->set_expr( 0 );
898 } else {
899 retStmt->set_expr( mutateExpression( retStmt->get_expr() ) );
900 } // if
901 return retStmt;
902 }
[6c3744e]903
[01aeade]904 Type * Pass1::mutate( PointerType *pointerType ) {
905 TyVarMap oldtyVars = scopeTyVars;
906 makeTyVarMap( pointerType, scopeTyVars );
[51b73452]907
[01aeade]908 Type *ret = Mutator::mutate( pointerType );
[51b73452]909
[01aeade]910 scopeTyVars = oldtyVars;
911 return ret;
912 }
[6c3744e]913
[01aeade]914 Type * Pass1::mutate( FunctionType *functionType ) {
915 TyVarMap oldtyVars = scopeTyVars;
916 makeTyVarMap( functionType, scopeTyVars );
[51b73452]917
[01aeade]918 Type *ret = Mutator::mutate( functionType );
[51b73452]919
[01aeade]920 scopeTyVars = oldtyVars;
921 return ret;
922 }
[51b73452]923
[01aeade]924 void Pass1::doBeginScope() {
[bdf1954]925 // push a copy of the current map
[e56cfdb0]926 adapters.push(adapters.top());
[01aeade]927 }
[b1a6d6b]928
[01aeade]929 void Pass1::doEndScope() {
930 adapters.pop();
931 }
[51b73452]932
933////////////////////////////////////////// Pass2 ////////////////////////////////////////////////////
934
[01aeade]935 Pass2::Pass2() {}
936
937 void Pass2::addAdapters( FunctionType *functionType ) {
938 std::list< DeclarationWithType *> &paramList = functionType->get_parameters();
939 std::list< FunctionType *> functions;
940 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
941 Type *orig = (*arg)->get_type();
942 findAndReplaceFunction( orig, functions, scopeTyVars, needsAdapter );
943 (*arg)->set_type( orig );
944 }
945 std::set< std::string > adaptersDone;
946 for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) {
[bdf1954]947 std::string mangleName = mangleAdapterName( *funType, scopeTyVars );
[01aeade]948 if ( adaptersDone.find( mangleName ) == adaptersDone.end() ) {
949 std::string adapterName = makeAdapterName( mangleName );
[68cd1ce]950 paramList.push_front( new ObjectDecl( adapterName, DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), makeAdapterType( *funType, scopeTyVars ) ), 0 ) );
[01aeade]951 adaptersDone.insert( adaptersDone.begin(), mangleName );
952 }
953 }
[51b73452]954/// deleteAll( functions );
[01aeade]955 }
[6c3744e]956
[01aeade]957 template< typename DeclClass >
958 DeclClass * Pass2::handleDecl( DeclClass *decl, Type *type ) {
959 DeclClass *ret = static_cast< DeclClass *>( Mutator::mutate( decl ) );
[6c3744e]960
[01aeade]961 return ret;
962 }
[6c3744e]963
[01aeade]964 DeclarationWithType * Pass2::mutate( FunctionDecl *functionDecl ) {
965 return handleDecl( functionDecl, functionDecl->get_functionType() );
966 }
[6c3744e]967
[01aeade]968 ObjectDecl * Pass2::mutate( ObjectDecl *objectDecl ) {
969 return handleDecl( objectDecl, objectDecl->get_type() );
970 }
[6c3744e]971
[01aeade]972 TypeDecl * Pass2::mutate( TypeDecl *typeDecl ) {
973 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
974 if ( typeDecl->get_base() ) {
975 return handleDecl( typeDecl, typeDecl->get_base() );
976 } else {
977 return Mutator::mutate( typeDecl );
978 }
979 }
[6c3744e]980
[01aeade]981 TypedefDecl * Pass2::mutate( TypedefDecl *typedefDecl ) {
982 return handleDecl( typedefDecl, typedefDecl->get_base() );
983 }
[6c3744e]984
[01aeade]985 Type * Pass2::mutate( PointerType *pointerType ) {
986 TyVarMap oldtyVars = scopeTyVars;
987 makeTyVarMap( pointerType, scopeTyVars );
[51b73452]988
[01aeade]989 Type *ret = Mutator::mutate( pointerType );
[51b73452]990
[01aeade]991 scopeTyVars = oldtyVars;
992 return ret;
993 }
[6c3744e]994
[01aeade]995 Type *Pass2::mutate( FunctionType *funcType ) {
996 TyVarMap oldtyVars = scopeTyVars;
997 makeTyVarMap( funcType, scopeTyVars );
[51b73452]998
[01aeade]999 std::string typeName;
1000 if ( isPolyRet( funcType, typeName ) ) {
1001 DeclarationWithType *ret = funcType->get_returnVals().front();
1002 ret->set_type( new PointerType( Type::Qualifiers(), ret->get_type() ) );
1003 funcType->get_parameters().push_front( ret );
1004 funcType->get_returnVals().pop_front();
1005 }
[51b73452]1006
[01aeade]1007 std::list< DeclarationWithType *>::iterator last = funcType->get_parameters().begin();
1008 std::list< DeclarationWithType *> inferredParams;
[68cd1ce]1009 ObjectDecl *newObj = new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ), 0 );
1010/// ObjectDecl *newFunPtr = new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), new FunctionType( Type::Qualifiers(), true ) ), 0 );
[01aeade]1011 for ( std::list< TypeDecl *>::const_iterator tyParm = funcType->get_forall().begin(); tyParm != funcType->get_forall().end(); ++tyParm ) {
1012 ObjectDecl *thisParm;
[e56cfdb0]1013 // add all size parameters to parameter list
[01aeade]1014 if ( (*tyParm)->get_kind() == TypeDecl::Any ) {
1015 thisParm = newObj->clone();
1016 thisParm->set_name( (*tyParm)->get_name() );
1017 last = funcType->get_parameters().insert( last, thisParm );
1018 ++last;
1019 }
[e56cfdb0]1020 // move all assertions into parameter list
[01aeade]1021 for ( std::list< DeclarationWithType *>::iterator assert = (*tyParm)->get_assertions().begin(); assert != (*tyParm)->get_assertions().end(); ++assert ) {
[6c3744e]1022/// *assert = (*assert)->acceptMutator( *this );
[01aeade]1023 inferredParams.push_back( *assert );
1024 }
1025 (*tyParm)->get_assertions().clear();
1026 }
1027 delete newObj;
1028 funcType->get_parameters().splice( last, inferredParams );
1029 addAdapters( funcType );
1030 mutateAll( funcType->get_returnVals(), *this );
1031 mutateAll( funcType->get_parameters(), *this );
[51b73452]1032
[01aeade]1033 scopeTyVars = oldtyVars;
1034 return funcType;
1035 }
[51b73452]1036
1037////////////////////////////////////////// Pass3 ////////////////////////////////////////////////////
1038
[01aeade]1039 template< typename DeclClass >
1040 DeclClass * Pass3::handleDecl( DeclClass *decl, Type *type ) {
1041 TyVarMap oldtyVars = scopeTyVars;
1042 makeTyVarMap( type, scopeTyVars );
[51b73452]1043
[01aeade]1044 DeclClass *ret = static_cast< DeclClass *>( Mutator::mutate( decl ) );
1045 ScrubTyVars::scrub( decl, scopeTyVars );
[6c3744e]1046
[01aeade]1047 scopeTyVars = oldtyVars;
1048 return ret;
1049 }
[6c3744e]1050
[01aeade]1051 ObjectDecl * Pass3::mutate( ObjectDecl *objectDecl ) {
1052 return handleDecl( objectDecl, objectDecl->get_type() );
1053 }
[6c3744e]1054
[01aeade]1055 DeclarationWithType * Pass3::mutate( FunctionDecl *functionDecl ) {
1056 return handleDecl( functionDecl, functionDecl->get_functionType() );
1057 }
[6c3744e]1058
[01aeade]1059 TypedefDecl * Pass3::mutate( TypedefDecl *typedefDecl ) {
1060 return handleDecl( typedefDecl, typedefDecl->get_base() );
1061 }
[6c3744e]1062
[01aeade]1063 TypeDecl * Pass3::mutate( TypeDecl *typeDecl ) {
[51b73452]1064/// Initializer *init = 0;
1065/// std::list< Expression *> designators;
1066/// scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
[6c3744e]1067/// if ( typeDecl->get_base() ) {
[51b73452]1068/// init = new SimpleInit( new SizeofExpr( handleDecl( typeDecl, typeDecl->get_base() ) ), designators );
1069/// }
1070/// return new ObjectDecl( typeDecl->get_name(), Declaration::Extern, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::UnsignedInt ), init );
1071
[01aeade]1072 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
1073 return Mutator::mutate( typeDecl );
1074 }
[51b73452]1075
[01aeade]1076 Type * Pass3::mutate( PointerType *pointerType ) {
1077 TyVarMap oldtyVars = scopeTyVars;
1078 makeTyVarMap( pointerType, scopeTyVars );
[51b73452]1079
[01aeade]1080 Type *ret = Mutator::mutate( pointerType );
[51b73452]1081
[01aeade]1082 scopeTyVars = oldtyVars;
1083 return ret;
1084 }
[6c3744e]1085
[01aeade]1086 Type * Pass3::mutate( FunctionType *functionType ) {
1087 TyVarMap oldtyVars = scopeTyVars;
1088 makeTyVarMap( functionType, scopeTyVars );
[51b73452]1089
[01aeade]1090 Type *ret = Mutator::mutate( functionType );
[51b73452]1091
[01aeade]1092 scopeTyVars = oldtyVars;
1093 return ret;
[6c3744e]1094 }
[51b73452]1095
[01aeade]1096 Statement *Pass3::mutate( DeclStmt *declStmt ) {
1097 if ( ObjectDecl *objectDecl = dynamic_cast< ObjectDecl *>( declStmt->get_decl() ) ) {
1098 if ( isPolyVal( objectDecl->get_type(), scopeTyVars ) ) {
[e01559c]1099 // change initialization of a polymorphic value object
1100 // to allocate storage with alloca
[01aeade]1101 TypeInstType *typeInst = dynamic_cast< TypeInstType *>( objectDecl->get_type() );
1102 assert( typeInst );
1103 UntypedExpr *alloc = new UntypedExpr( new NameExpr( "__builtin_alloca" ) );
1104 alloc->get_args().push_back( new NameExpr( typeInst->get_name() ) );
[e01559c]1105
1106 delete objectDecl->get_init();
1107
1108 std::list<Expression*> designators;
1109 objectDecl->set_init( new SingleInit( alloc, designators ) );
[01aeade]1110 }
1111 }
1112 return Mutator::mutate( declStmt );
1113 }
1114 } // anonymous namespace
[51b73452]1115} // namespace GenPoly
[01aeade]1116
[51587aa]1117// Local Variables: //
1118// tab-width: 4 //
1119// mode: c++ //
1120// compile-command: "make install" //
1121// End: //
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