source: src/SymTab/Mangler.cc@ 5ccb10d

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors deferred_resn demangler enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new with_gc
Last change on this file since 5ccb10d was 9236060, checked in by Rob Schluntz <rschlunt@…>, 8 years ago

Merge branch 'master' into references
  • Property mode set to 100644
File size: 9.9 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// Mangler.cc --
8//
9// Author : Richard C. Bilson
10// Created On : Sun May 17 21:40:29 2015
11// Last Modified By : Andrew Beach
12// Last Modified On : Wed Jun 28 15:31:00 2017
13// Update Count : 21
14//
15#include "Mangler.h"
16
17#include <algorithm> // for copy, transform
18#include <cassert> // for assert, assertf
19#include <functional> // for const_mem_fun_t, mem_fun
20#include <iterator> // for ostream_iterator, back_insert_ite...
21#include <list> // for _List_iterator, list, _List_const...
22#include <string> // for string, operator<<, basic_string
23
24#include "CodeGen/OperatorTable.h" // for OperatorInfo, operatorLookup
25#include "Common/utility.h" // for toString
26#include "Parser/LinkageSpec.h" // for Spec, isOverridable, AutoGen, Int...
27#include "SynTree/Declaration.h" // for TypeDecl, DeclarationWithType
28#include "SynTree/Expression.h" // for TypeExpr, Expression, operator<<
29#include "SynTree/Type.h" // for Type, ReferenceToType, Type::Fora...
30
31namespace SymTab {
32 std::string Mangler::mangleType( Type *ty ) {
33 Mangler mangler( false, true );
34 maybeAccept( ty, mangler );
35 return mangler.get_mangleName();
36 }
37
38 Mangler::Mangler( bool mangleOverridable, bool typeMode )
39 : nextVarNum( 0 ), isTopLevel( true ), mangleOverridable( mangleOverridable ), typeMode( typeMode ) {}
40
41 Mangler::Mangler( const Mangler &rhs ) : mangleName() {
42 varNums = rhs.varNums;
43 nextVarNum = rhs.nextVarNum;
44 isTopLevel = rhs.isTopLevel;
45 mangleOverridable = rhs.mangleOverridable;
46 typeMode = rhs.typeMode;
47 }
48
49 void Mangler::mangleDecl( DeclarationWithType *declaration ) {
50 bool wasTopLevel = isTopLevel;
51 if ( isTopLevel ) {
52 varNums.clear();
53 nextVarNum = 0;
54 isTopLevel = false;
55 } // if
56 mangleName << "__";
57 CodeGen::OperatorInfo opInfo;
58 if ( operatorLookup( declaration->get_name(), opInfo ) ) {
59 mangleName << opInfo.outputName;
60 } else {
61 mangleName << declaration->get_name();
62 } // if
63 mangleName << "__";
64 maybeAccept( declaration->get_type(), *this );
65 if ( mangleOverridable && LinkageSpec::isOverridable( declaration->get_linkage() ) ) {
66 // want to be able to override autogenerated and intrinsic routines,
67 // so they need a different name mangling
68 if ( declaration->get_linkage() == LinkageSpec::AutoGen ) {
69 mangleName << "autogen__";
70 } else if ( declaration->get_linkage() == LinkageSpec::Intrinsic ) {
71 mangleName << "intrinsic__";
72 } else {
73 // if we add another kind of overridable function, this has to change
74 assert( false && "unknown overrideable linkage" );
75 } // if
76 }
77 isTopLevel = wasTopLevel;
78 }
79
80 void Mangler::visit( ObjectDecl *declaration ) {
81 mangleDecl( declaration );
82 }
83
84 void Mangler::visit( FunctionDecl *declaration ) {
85 mangleDecl( declaration );
86 }
87
88 void Mangler::visit( VoidType *voidType ) {
89 printQualifiers( voidType );
90 mangleName << "v";
91 }
92
93 void Mangler::visit( BasicType *basicType ) {
94 static const char *btLetter[] = {
95 "b", // Bool
96 "c", // Char
97 "Sc", // SignedChar
98 "Uc", // UnsignedChar
99 "s", // ShortSignedInt
100 "Us", // ShortUnsignedInt
101 "i", // SignedInt
102 "Ui", // UnsignedInt
103 "l", // LongSignedInt
104 "Ul", // LongUnsignedInt
105 "q", // LongLongSignedInt
106 "Uq", // LongLongUnsignedInt
107 "f", // Float
108 "d", // Double
109 "r", // LongDouble
110 "Xf", // FloatComplex
111 "Xd", // DoubleComplex
112 "Xr", // LongDoubleComplex
113 "If", // FloatImaginary
114 "Id", // DoubleImaginary
115 "Ir", // LongDoubleImaginary
116 };
117
118 printQualifiers( basicType );
119 mangleName << btLetter[ basicType->get_kind() ];
120 }
121
122 void Mangler::visit( PointerType *pointerType ) {
123 printQualifiers( pointerType );
124 mangleName << "P";
125 maybeAccept( pointerType->get_base(), *this );
126 }
127
128 void Mangler::visit( ArrayType *arrayType ) {
129 // TODO: encode dimension
130 printQualifiers( arrayType );
131 mangleName << "A0";
132 maybeAccept( arrayType->get_base(), *this );
133 }
134
135 void Mangler::visit( ReferenceType *refType ) {
136 printQualifiers( refType );
137 mangleName << "R";
138 maybeAccept( refType->get_base(), *this );
139 }
140
141 namespace {
142 inline std::list< Type* > getTypes( const std::list< DeclarationWithType* > decls ) {
143 std::list< Type* > ret;
144 std::transform( decls.begin(), decls.end(), std::back_inserter( ret ),
145 std::mem_fun( &DeclarationWithType::get_type ) );
146 return ret;
147 }
148 }
149
150 void Mangler::visit( FunctionType *functionType ) {
151 printQualifiers( functionType );
152 mangleName << "F";
153 std::list< Type* > returnTypes = getTypes( functionType->get_returnVals() );
154 acceptAll( returnTypes, *this );
155 mangleName << "_";
156 std::list< Type* > paramTypes = getTypes( functionType->get_parameters() );
157 acceptAll( paramTypes, *this );
158 mangleName << "_";
159 }
160
161 void Mangler::mangleRef( ReferenceToType *refType, std::string prefix ) {
162 printQualifiers( refType );
163
164 mangleName << ( refType->get_name().length() + prefix.length() ) << prefix << refType->get_name();
165 }
166
167 void Mangler::mangleGenericRef( ReferenceToType *refType, std::string prefix ) {
168 printQualifiers( refType );
169
170 std::ostringstream oldName( mangleName.str() );
171 mangleName.clear();
172
173 mangleName << prefix << refType->get_name();
174
175 std::list< Expression* >& params = refType->get_parameters();
176 if ( ! params.empty() ) {
177 mangleName << "_";
178 for ( std::list< Expression* >::const_iterator param = params.begin(); param != params.end(); ++param ) {
179 TypeExpr *paramType = dynamic_cast< TypeExpr* >( *param );
180 assertf(paramType, "Aggregate parameters should be type expressions: %s", toString(*param).c_str());
181 maybeAccept( paramType->get_type(), *this );
182 }
183 mangleName << "_";
184 }
185
186 oldName << mangleName.str().length() << mangleName.str();
187 mangleName.str( oldName.str() );
188 }
189
190 void Mangler::visit( StructInstType *aggregateUseType ) {
191 if ( typeMode ) mangleGenericRef( aggregateUseType, "s" );
192 else mangleRef( aggregateUseType, "s" );
193 }
194
195 void Mangler::visit( UnionInstType *aggregateUseType ) {
196 if ( typeMode ) mangleGenericRef( aggregateUseType, "u" );
197 else mangleRef( aggregateUseType, "u" );
198 }
199
200 void Mangler::visit( EnumInstType *aggregateUseType ) {
201 mangleRef( aggregateUseType, "e" );
202 }
203
204 void Mangler::visit( TypeInstType *typeInst ) {
205 VarMapType::iterator varNum = varNums.find( typeInst->get_name() );
206 if ( varNum == varNums.end() ) {
207 mangleRef( typeInst, "t" );
208 } else {
209 printQualifiers( typeInst );
210 std::ostringstream numStream;
211 numStream << varNum->second.first;
212 switch ( (TypeDecl::Kind )varNum->second.second ) {
213 case TypeDecl::Any:
214 mangleName << "t";
215 break;
216 case TypeDecl::Dtype:
217 mangleName << "d";
218 break;
219 case TypeDecl::Ftype:
220 mangleName << "f";
221 break;
222 case TypeDecl::Ttype:
223 mangleName << "tVARGS";
224 break;
225 default:
226 assert( false );
227 } // switch
228 mangleName << numStream.str();
229 } // if
230 }
231
232 void Mangler::visit( TupleType *tupleType ) {
233 printQualifiers( tupleType );
234 mangleName << "T";
235 acceptAll( tupleType->get_types(), *this );
236 mangleName << "_";
237 }
238
239 void Mangler::visit( VarArgsType *varArgsType ) {
240 printQualifiers( varArgsType );
241 mangleName << "VARGS";
242 }
243
244 void Mangler::visit( __attribute__((unused)) ZeroType *zeroType ) {
245 mangleName << "Z";
246 }
247
248 void Mangler::visit( __attribute__((unused)) OneType *oneType ) {
249 mangleName << "O";
250 }
251
252 void Mangler::visit( TypeDecl *decl ) {
253 static const char *typePrefix[] = { "BT", "BD", "BF" };
254 mangleName << typePrefix[ decl->get_kind() ] << ( decl->get_name().length() + 1 ) << decl->get_name();
255 }
256
257 void printVarMap( const std::map< std::string, std::pair< int, int > > &varMap, std::ostream &os ) {
258 for ( std::map< std::string, std::pair< int, int > >::const_iterator i = varMap.begin(); i != varMap.end(); ++i ) {
259 os << i->first << "(" << i->second.first << "/" << i->second.second << ")" << std::endl;
260 } // for
261 }
262
263 void Mangler::printQualifiers( Type *type ) {
264 // skip if not including qualifiers
265 if ( typeMode ) return;
266
267 if ( ! type->get_forall().empty() ) {
268 std::list< std::string > assertionNames;
269 int tcount = 0, dcount = 0, fcount = 0, vcount = 0;
270 mangleName << "A";
271 for ( Type::ForallList::iterator i = type->get_forall().begin(); i != type->get_forall().end(); ++i ) {
272 switch ( (*i)->get_kind() ) {
273 case TypeDecl::Any:
274 tcount++;
275 break;
276 case TypeDecl::Dtype:
277 dcount++;
278 break;
279 case TypeDecl::Ftype:
280 fcount++;
281 break;
282 case TypeDecl::Ttype:
283 vcount++;
284 break;
285 default:
286 assert( false );
287 } // switch
288 varNums[ (*i )->get_name() ] = std::pair< int, int >( nextVarNum++, (int )(*i )->get_kind() );
289 for ( std::list< DeclarationWithType* >::iterator assert = (*i )->get_assertions().begin(); assert != (*i )->get_assertions().end(); ++assert ) {
290 Mangler sub_mangler( mangleOverridable, typeMode );
291 sub_mangler.nextVarNum = nextVarNum;
292 sub_mangler.isTopLevel = false;
293 sub_mangler.varNums = varNums;
294 (*assert)->accept( sub_mangler );
295 assertionNames.push_back( sub_mangler.mangleName.str() );
296 } // for
297 } // for
298 mangleName << tcount << "_" << dcount << "_" << fcount << "_" << vcount << "_";
299 std::copy( assertionNames.begin(), assertionNames.end(), std::ostream_iterator< std::string >( mangleName, "" ) );
300 mangleName << "_";
301 } // if
302 if ( type->get_const() ) {
303 mangleName << "C";
304 } // if
305 if ( type->get_volatile() ) {
306 mangleName << "V";
307 } // if
308 // Removed due to restrict not affecting function compatibility in GCC
309// if ( type->get_isRestrict() ) {
310// mangleName << "E";
311// } // if
312 if ( type->get_lvalue() ) {
313 mangleName << "L";
314 } // if
315 if ( type->get_atomic() ) {
316 mangleName << "A";
317 } // if
318 }
319} // namespace SymTab
320
321// Local Variables: //
322// tab-width: 4 //
323// mode: c++ //
324// compile-command: "make install" //
325// End: //
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