source: src/ResolvExpr/CommonType.cc@ 63364d8

ADT arm-eh ast-experimental cleanup-dtors enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since 63364d8 was 6fd1955, checked in by Peter A. Buhr <pabuhr@…>, 7 years ago

update GENERATED BY file name
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File size: 49.5 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// CommonType.cc --
8//
9// Author : Richard C. Bilson
10// Created On : Sun May 17 06:59:27 2015
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Thu Feb 14 17:10:10 2019
13// Update Count : 24
14//
15
16#include <cassert> // for strict_dynamic_cast
17#include <map> // for _Rb_tree_const_iterator
18#include <utility> // for pair
19
20#include "Common/PassVisitor.h"
21#include "ResolvExpr/TypeEnvironment.h" // for OpenVarSet, AssertionSet
22#include "SymTab/Indexer.h" // for Indexer
23#include "SynTree/Declaration.h" // for TypeDecl, NamedTypeDecl (ptr...
24#include "SynTree/Type.h" // for BasicType, BasicType::Kind::...
25#include "SynTree/Visitor.h" // for Visitor
26#include "Unify.h" // for unifyExact, WidenMode
27#include "typeops.h" // for isFtype
28
29// #define DEBUG
30#ifdef DEBUG
31#define PRINT(x) x
32#else
33#define PRINT(x)
34#endif
35
36namespace ResolvExpr {
37 struct CommonType : public WithShortCircuiting {
38 CommonType( Type *type2, bool widenFirst, bool widenSecond, const SymTab::Indexer &indexer, TypeEnvironment &env, const OpenVarSet &openVars );
39 Type *get_result() const { return result; }
40
41 void previsit( BaseSyntaxNode * ) { visit_children = false; }
42
43 void postvisit( VoidType * voidType );
44 void postvisit( BasicType * basicType );
45 void postvisit( PointerType * pointerType );
46 void postvisit( ArrayType * arrayType );
47 void postvisit( ReferenceType * refType );
48 void postvisit( FunctionType * functionType );
49 void postvisit( StructInstType * aggregateUseType );
50 void postvisit( UnionInstType * aggregateUseType );
51 void postvisit( EnumInstType * aggregateUseType );
52 void postvisit( TraitInstType * aggregateUseType );
53 void postvisit( TypeInstType * aggregateUseType );
54 void postvisit( TupleType * tupleType );
55 void postvisit( VarArgsType * varArgsType );
56 void postvisit( ZeroType * zeroType );
57 void postvisit( OneType * oneType );
58
59 private:
60 template< typename Pointer > void getCommonWithVoidPointer( Pointer* voidPointer, Pointer* otherPointer );
61 template< typename RefType > void handleRefType( RefType *inst, Type *other );
62
63 Type *result;
64 Type *type2; // inherited
65 bool widenFirst, widenSecond;
66 const SymTab::Indexer &indexer;
67 TypeEnvironment &env;
68 const OpenVarSet &openVars;
69 };
70
71 Type * handleReference( Type * t1, Type * t2, bool widenFirst, bool widenSecond, const SymTab::Indexer &indexer, TypeEnvironment & env, const OpenVarSet &openVars ) {
72 Type * common = nullptr;
73 AssertionSet have, need;
74 OpenVarSet newOpen( openVars );
75 // need unify to bind type variables
76 if ( unify( t1, t2, env, have, need, newOpen, indexer, common ) ) {
77 PRINT(
78 std::cerr << "unify success: " << widenFirst << " " << widenSecond << std::endl;
79 )
80 if ( (widenFirst || t2->get_qualifiers() <= t1->get_qualifiers()) && (widenSecond || t1->get_qualifiers() <= t2->get_qualifiers()) ) {
81 PRINT(
82 std::cerr << "widen okay" << std::endl;
83 )
84 common->get_qualifiers() |= t1->get_qualifiers();
85 common->get_qualifiers() |= t2->get_qualifiers();
86 return common;
87 }
88 }
89 PRINT(
90 std::cerr << "exact unify failed: " << t1 << " " << t2 << std::endl;
91 )
92 return nullptr;
93 }
94
95 Type *commonType( Type *type1, Type *type2, bool widenFirst, bool widenSecond, const SymTab::Indexer &indexer, TypeEnvironment &env, const OpenVarSet &openVars ) {
96 PassVisitor<CommonType> visitor( type2, widenFirst, widenSecond, indexer, env, openVars );
97
98 int depth1 = type1->referenceDepth();
99 int depth2 = type2->referenceDepth();
100 if ( depth1 > 0 || depth2 > 0 ) {
101 int diff = depth1-depth2;
102 // TODO: should it be possible for commonType to generate complicated conversions? I would argue no, only conversions that involve types of the same reference level or a difference of 1 should be allowed.
103 // if ( diff > 1 || diff < -1 ) return nullptr;
104
105 // special case where one type has a reference depth of 1 larger than the other
106 if ( diff > 0 || diff < 0 ) {
107 PRINT(
108 std::cerr << "reference depth diff: " << diff << std::endl;
109 )
110 Type * result = nullptr;
111 ReferenceType * ref1 = dynamic_cast< ReferenceType * >( type1 );
112 ReferenceType * ref2 = dynamic_cast< ReferenceType * >( type2 );
113 if ( diff > 0 ) {
114 // deeper on the left
115 assert( ref1 );
116 result = handleReference( ref1->base, type2, widenFirst, widenSecond, indexer, env, openVars );
117 } else {
118 // deeper on the right
119 assert( ref2 );
120 result = handleReference( type1, ref2->base, widenFirst, widenSecond, indexer, env, openVars );
121 }
122 if ( result && ref1 ) {
123 // formal is reference, so result should be reference
124 PRINT(
125 std::cerr << "formal is reference; result should be reference" << std::endl;
126 )
127 result = new ReferenceType( ref1->get_qualifiers(), result );
128 }
129 PRINT(
130 std::cerr << "common type of reference [" << type1 << "] and [" << type2 << "] is [" << result << "]" << std::endl;
131 )
132 return result;
133 }
134 // otherwise, both are reference types of the same depth and this is handled by the CommonType visitor.
135 }
136
137 type1->accept( visitor );
138 Type *result = visitor.pass.get_result();
139 if ( ! result ) {
140 // this appears to be handling for opaque type declarations
141 if ( widenSecond ) {
142 if ( TypeInstType *inst = dynamic_cast< TypeInstType* >( type2 ) ) {
143 if ( NamedTypeDecl *nt = indexer.lookupType( inst->get_name() ) ) {
144 TypeDecl *type = strict_dynamic_cast< TypeDecl* >( nt );
145 if ( type->get_base() ) {
146 Type::Qualifiers tq1 = type1->get_qualifiers(), tq2 = type2->get_qualifiers();
147 AssertionSet have, need;
148 OpenVarSet newOpen( openVars );
149 type1->get_qualifiers() = Type::Qualifiers();
150 type->get_base()->get_qualifiers() = tq1;
151 if ( unifyExact( type1, type->get_base(), env, have, need, newOpen, indexer ) ) {
152 result = type1->clone();
153 result->get_qualifiers() = tq1 | tq2;
154 } // if
155 type1->get_qualifiers() = tq1;
156 type->get_base()->get_qualifiers() = Type::Qualifiers();
157 } // if
158 } // if
159 } // if
160 } // if
161 } // if
162#ifdef DEBUG
163 std::cerr << "============= commonType" << std::endl << "type1 is ";
164 type1->print( std::cerr );
165 std::cerr << " type2 is ";
166 type2->print( std::cerr );
167 if ( result ) {
168 std::cerr << " common type is ";
169 result->print( std::cerr );
170 } else {
171 std::cerr << " no common type";
172 } // if
173 std::cerr << std::endl;
174#endif
175 return result;
176 }
177
178 // GENERATED START, DO NOT EDIT
179 // GENERATED BY BasicTypes-gen.cc
180 #define BT BasicType::
181 static const BasicType::Kind commonTypes[BasicType::NUMBER_OF_BASIC_TYPES][BasicType::NUMBER_OF_BASIC_TYPES] = { // nearest common ancestor
182 /* B C SC UC SI SUI
183 I UI LI LUI LLI LLUI
184 IB UIB _FH _FH _F _FC
185 F FC _FX _FXC FD _FDC
186 D DC F80X _FDXC F80 _FB
187 _FLDC FB LD LDC _FBX _FLDXC
188 */
189 {
190 /* B*/ BT Bool, BT Char, BT SignedChar, BT UnsignedChar, BT ShortSignedInt, BT ShortUnsignedInt,
191 BT SignedInt, BT UnsignedInt, BT LongSignedInt, BT LongUnsignedInt, BT LongLongSignedInt, BT LongLongUnsignedInt,
192 BT SignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
193 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
194 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
195 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
196 },
197 {
198 /* C*/ BT Char, BT Char, BT SignedChar, BT UnsignedChar, BT ShortSignedInt, BT ShortUnsignedInt,
199 BT SignedInt, BT UnsignedInt, BT LongSignedInt, BT LongUnsignedInt, BT LongLongSignedInt, BT LongLongUnsignedInt,
200 BT SignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
201 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
202 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
203 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
204 },
205 {
206 /* SC*/ BT SignedChar, BT SignedChar, BT SignedChar, BT UnsignedChar, BT ShortSignedInt, BT ShortUnsignedInt,
207 BT SignedInt, BT UnsignedInt, BT LongSignedInt, BT LongUnsignedInt, BT LongLongSignedInt, BT LongLongUnsignedInt,
208 BT SignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
209 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
210 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
211 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
212 },
213 {
214 /* UC*/ BT UnsignedChar, BT UnsignedChar, BT UnsignedChar, BT UnsignedChar, BT ShortSignedInt, BT ShortUnsignedInt,
215 BT SignedInt, BT UnsignedInt, BT LongSignedInt, BT LongUnsignedInt, BT LongLongSignedInt, BT LongLongUnsignedInt,
216 BT SignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
217 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
218 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
219 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
220 },
221 {
222 /* SI*/ BT ShortSignedInt, BT ShortSignedInt, BT ShortSignedInt, BT ShortSignedInt, BT ShortSignedInt, BT ShortUnsignedInt,
223 BT SignedInt, BT UnsignedInt, BT LongSignedInt, BT LongUnsignedInt, BT LongLongSignedInt, BT LongLongUnsignedInt,
224 BT SignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
225 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
226 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
227 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
228 },
229 {
230 /* SUI*/ BT ShortUnsignedInt, BT ShortUnsignedInt, BT ShortUnsignedInt, BT ShortUnsignedInt, BT ShortUnsignedInt, BT ShortUnsignedInt,
231 BT SignedInt, BT UnsignedInt, BT LongSignedInt, BT LongUnsignedInt, BT LongLongSignedInt, BT LongLongUnsignedInt,
232 BT SignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
233 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
234 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
235 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
236 },
237 {
238 /* I*/ BT SignedInt, BT SignedInt, BT SignedInt, BT SignedInt, BT SignedInt, BT SignedInt,
239 BT SignedInt, BT UnsignedInt, BT LongSignedInt, BT LongUnsignedInt, BT LongLongSignedInt, BT LongLongUnsignedInt,
240 BT SignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
241 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
242 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
243 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
244 },
245 {
246 /* UI*/ BT UnsignedInt, BT UnsignedInt, BT UnsignedInt, BT UnsignedInt, BT UnsignedInt, BT UnsignedInt,
247 BT UnsignedInt, BT UnsignedInt, BT LongSignedInt, BT LongUnsignedInt, BT LongLongSignedInt, BT LongLongUnsignedInt,
248 BT SignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
249 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
250 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
251 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
252 },
253 {
254 /* LI*/ BT LongSignedInt, BT LongSignedInt, BT LongSignedInt, BT LongSignedInt, BT LongSignedInt, BT LongSignedInt,
255 BT LongSignedInt, BT LongSignedInt, BT LongSignedInt, BT LongUnsignedInt, BT LongLongSignedInt, BT LongLongUnsignedInt,
256 BT SignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
257 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
258 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
259 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
260 },
261 {
262 /* LUI*/ BT LongUnsignedInt, BT LongUnsignedInt, BT LongUnsignedInt, BT LongUnsignedInt, BT LongUnsignedInt, BT LongUnsignedInt,
263 BT LongUnsignedInt, BT LongUnsignedInt, BT LongUnsignedInt, BT LongUnsignedInt, BT LongLongSignedInt, BT LongLongUnsignedInt,
264 BT SignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
265 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
266 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
267 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
268 },
269 {
270 /* LLI*/ BT LongLongSignedInt, BT LongLongSignedInt, BT LongLongSignedInt, BT LongLongSignedInt, BT LongLongSignedInt, BT LongLongSignedInt,
271 BT LongLongSignedInt, BT LongLongSignedInt, BT LongLongSignedInt, BT LongLongSignedInt, BT LongLongSignedInt, BT LongLongUnsignedInt,
272 BT SignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
273 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
274 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
275 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
276 },
277 {
278 /* LLUI*/ BT LongLongUnsignedInt, BT LongLongUnsignedInt, BT LongLongUnsignedInt, BT LongLongUnsignedInt, BT LongLongUnsignedInt, BT LongLongUnsignedInt,
279 BT LongLongUnsignedInt, BT LongLongUnsignedInt, BT LongLongUnsignedInt, BT LongLongUnsignedInt, BT LongLongUnsignedInt, BT LongLongUnsignedInt,
280 BT SignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
281 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
282 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
283 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
284 },
285 {
286 /* IB*/ BT SignedInt128, BT SignedInt128, BT SignedInt128, BT SignedInt128, BT SignedInt128, BT SignedInt128,
287 BT SignedInt128, BT SignedInt128, BT SignedInt128, BT SignedInt128, BT SignedInt128, BT SignedInt128,
288 BT SignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
289 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
290 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
291 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
292 },
293 {
294 /* UIB*/ BT UnsignedInt128, BT UnsignedInt128, BT UnsignedInt128, BT UnsignedInt128, BT UnsignedInt128, BT UnsignedInt128,
295 BT UnsignedInt128, BT UnsignedInt128, BT UnsignedInt128, BT UnsignedInt128, BT UnsignedInt128, BT UnsignedInt128,
296 BT UnsignedInt128, BT UnsignedInt128, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
297 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
298 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
299 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
300 },
301 {
302 /* _FH*/ BT uFloat16, BT uFloat16, BT uFloat16, BT uFloat16, BT uFloat16, BT uFloat16,
303 BT uFloat16, BT uFloat16, BT uFloat16, BT uFloat16, BT uFloat16, BT uFloat16,
304 BT uFloat16, BT uFloat16, BT uFloat16, BT uFloat16Complex, BT uFloat32, BT uFloat32Complex,
305 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
306 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
307 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
308 },
309 {
310 /* _FH*/ BT uFloat16Complex, BT uFloat16Complex, BT uFloat16Complex, BT uFloat16Complex, BT uFloat16Complex, BT uFloat16Complex,
311 BT uFloat16Complex, BT uFloat16Complex, BT uFloat16Complex, BT uFloat16Complex, BT uFloat16Complex, BT uFloat16Complex,
312 BT uFloat16Complex, BT uFloat16Complex, BT uFloat16Complex, BT uFloat16Complex, BT uFloat32Complex, BT uFloat32Complex,
313 BT FloatComplex, BT FloatComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat64Complex, BT uFloat64Complex,
314 BT DoubleComplex, BT DoubleComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat128Complex,
315 BT uFloat128Complex, BT uFloat128Complex, BT LongDoubleComplex, BT LongDoubleComplex, BT uFloat128xComplex, BT uFloat128xComplex,
316 },
317 {
318 /* _F*/ BT uFloat32, BT uFloat32, BT uFloat32, BT uFloat32, BT uFloat32, BT uFloat32,
319 BT uFloat32, BT uFloat32, BT uFloat32, BT uFloat32, BT uFloat32, BT uFloat32,
320 BT uFloat32, BT uFloat32, BT uFloat32, BT uFloat32Complex, BT uFloat32, BT uFloat32Complex,
321 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
322 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
323 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
324 },
325 {
326 /* _FC*/ BT uFloat32Complex, BT uFloat32Complex, BT uFloat32Complex, BT uFloat32Complex, BT uFloat32Complex, BT uFloat32Complex,
327 BT uFloat32Complex, BT uFloat32Complex, BT uFloat32Complex, BT uFloat32Complex, BT uFloat32Complex, BT uFloat32Complex,
328 BT uFloat32Complex, BT uFloat32Complex, BT uFloat32Complex, BT uFloat32Complex, BT uFloat32Complex, BT uFloat32Complex,
329 BT FloatComplex, BT FloatComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat64Complex, BT uFloat64Complex,
330 BT DoubleComplex, BT DoubleComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat128Complex,
331 BT uFloat128Complex, BT uFloat128Complex, BT LongDoubleComplex, BT LongDoubleComplex, BT uFloat128xComplex, BT uFloat128xComplex,
332 },
333 {
334 /* F*/ BT Float, BT Float, BT Float, BT Float, BT Float, BT Float,
335 BT Float, BT Float, BT Float, BT Float, BT Float, BT Float,
336 BT Float, BT Float, BT Float, BT FloatComplex, BT Float, BT FloatComplex,
337 BT Float, BT FloatComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
338 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
339 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
340 },
341 {
342 /* FC*/ BT FloatComplex, BT FloatComplex, BT FloatComplex, BT FloatComplex, BT FloatComplex, BT FloatComplex,
343 BT FloatComplex, BT FloatComplex, BT FloatComplex, BT FloatComplex, BT FloatComplex, BT FloatComplex,
344 BT FloatComplex, BT FloatComplex, BT FloatComplex, BT FloatComplex, BT FloatComplex, BT FloatComplex,
345 BT FloatComplex, BT FloatComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat64Complex, BT uFloat64Complex,
346 BT DoubleComplex, BT DoubleComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat128Complex,
347 BT uFloat128Complex, BT uFloat128Complex, BT LongDoubleComplex, BT LongDoubleComplex, BT uFloat128xComplex, BT uFloat128xComplex,
348 },
349 {
350 /* _FX*/ BT uFloat32x, BT uFloat32x, BT uFloat32x, BT uFloat32x, BT uFloat32x, BT uFloat32x,
351 BT uFloat32x, BT uFloat32x, BT uFloat32x, BT uFloat32x, BT uFloat32x, BT uFloat32x,
352 BT uFloat32x, BT uFloat32x, BT uFloat32x, BT uFloat32xComplex, BT uFloat32x, BT uFloat32xComplex,
353 BT uFloat32x, BT uFloat32xComplex, BT uFloat32x, BT uFloat32xComplex, BT uFloat64, BT uFloat64Complex,
354 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
355 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
356 },
357 {
358 /* _FXC*/ BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex,
359 BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex,
360 BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex,
361 BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat32xComplex, BT uFloat64Complex, BT uFloat64Complex,
362 BT DoubleComplex, BT DoubleComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat128Complex,
363 BT uFloat128Complex, BT uFloat128Complex, BT LongDoubleComplex, BT LongDoubleComplex, BT uFloat128xComplex, BT uFloat128xComplex,
364 },
365 {
366 /* FD*/ BT uFloat64, BT uFloat64, BT uFloat64, BT uFloat64, BT uFloat64, BT uFloat64,
367 BT uFloat64, BT uFloat64, BT uFloat64, BT uFloat64, BT uFloat64, BT uFloat64,
368 BT uFloat64, BT uFloat64, BT uFloat64, BT uFloat64Complex, BT uFloat64, BT uFloat64Complex,
369 BT uFloat64, BT uFloat64Complex, BT uFloat64, BT uFloat64Complex, BT uFloat64, BT uFloat64Complex,
370 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
371 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
372 },
373 {
374 /* _FDC*/ BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex,
375 BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex,
376 BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex,
377 BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex, BT uFloat64Complex,
378 BT DoubleComplex, BT DoubleComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat128Complex,
379 BT uFloat128Complex, BT uFloat128Complex, BT LongDoubleComplex, BT LongDoubleComplex, BT uFloat128xComplex, BT uFloat128xComplex,
380 },
381 {
382 /* D*/ BT Double, BT Double, BT Double, BT Double, BT Double, BT Double,
383 BT Double, BT Double, BT Double, BT Double, BT Double, BT Double,
384 BT Double, BT Double, BT Double, BT DoubleComplex, BT Double, BT DoubleComplex,
385 BT Double, BT DoubleComplex, BT Double, BT DoubleComplex, BT Double, BT DoubleComplex,
386 BT Double, BT DoubleComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
387 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
388 },
389 {
390 /* DC*/ BT DoubleComplex, BT DoubleComplex, BT DoubleComplex, BT DoubleComplex, BT DoubleComplex, BT DoubleComplex,
391 BT DoubleComplex, BT DoubleComplex, BT DoubleComplex, BT DoubleComplex, BT DoubleComplex, BT DoubleComplex,
392 BT DoubleComplex, BT DoubleComplex, BT DoubleComplex, BT DoubleComplex, BT DoubleComplex, BT DoubleComplex,
393 BT DoubleComplex, BT DoubleComplex, BT DoubleComplex, BT DoubleComplex, BT DoubleComplex, BT DoubleComplex,
394 BT DoubleComplex, BT DoubleComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat128Complex,
395 BT uFloat128Complex, BT uFloat128Complex, BT LongDoubleComplex, BT LongDoubleComplex, BT uFloat128xComplex, BT uFloat128xComplex,
396 },
397 {
398 /* F80X*/ BT uFloat64x, BT uFloat64x, BT uFloat64x, BT uFloat64x, BT uFloat64x, BT uFloat64x,
399 BT uFloat64x, BT uFloat64x, BT uFloat64x, BT uFloat64x, BT uFloat64x, BT uFloat64x,
400 BT uFloat64x, BT uFloat64x, BT uFloat64x, BT uFloat64xComplex, BT uFloat64x, BT uFloat64xComplex,
401 BT uFloat64x, BT uFloat64xComplex, BT uFloat64x, BT uFloat64xComplex, BT uFloat64x, BT uFloat64xComplex,
402 BT uFloat64x, BT uFloat64xComplex, BT uFloat64x, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
403 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
404 },
405 {
406 /* _FDXC*/ BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex,
407 BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex,
408 BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex,
409 BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex,
410 BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat64xComplex, BT uFloat128Complex,
411 BT uFloat128Complex, BT uFloat128Complex, BT LongDoubleComplex, BT LongDoubleComplex, BT uFloat128xComplex, BT uFloat128xComplex,
412 },
413 {
414 /* F80*/ BT uuFloat80, BT uuFloat80, BT uuFloat80, BT uuFloat80, BT uuFloat80, BT uuFloat80,
415 BT uuFloat80, BT uuFloat80, BT uuFloat80, BT uuFloat80, BT uuFloat80, BT uuFloat80,
416 BT uuFloat80, BT uuFloat80, BT uuFloat80, BT uFloat64xComplex, BT uuFloat80, BT uFloat64xComplex,
417 BT uuFloat80, BT uFloat64xComplex, BT uuFloat80, BT uFloat64xComplex, BT uuFloat80, BT uFloat64xComplex,
418 BT uuFloat80, BT uFloat64xComplex, BT uuFloat80, BT uFloat64xComplex, BT uuFloat80, BT uFloat128,
419 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
420 },
421 {
422 /* _FB*/ BT uFloat128, BT uFloat128, BT uFloat128, BT uFloat128, BT uFloat128, BT uFloat128,
423 BT uFloat128, BT uFloat128, BT uFloat128, BT uFloat128, BT uFloat128, BT uFloat128,
424 BT uFloat128, BT uFloat128, BT uFloat128, BT uFloat128Complex, BT uFloat128, BT uFloat128Complex,
425 BT uFloat128, BT uFloat128Complex, BT uFloat128, BT uFloat128Complex, BT uFloat128, BT uFloat128Complex,
426 BT uFloat128, BT uFloat128Complex, BT uFloat128, BT uFloat128Complex, BT uFloat128, BT uFloat128,
427 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
428 },
429 {
430 /* _FLDC*/ BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex,
431 BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex,
432 BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex,
433 BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex,
434 BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex, BT uFloat128Complex,
435 BT uFloat128Complex, BT uFloat128Complex, BT LongDoubleComplex, BT LongDoubleComplex, BT uFloat128xComplex, BT uFloat128xComplex,
436 },
437 {
438 /* FB*/ BT uuFloat128, BT uuFloat128, BT uuFloat128, BT uuFloat128, BT uuFloat128, BT uuFloat128,
439 BT uuFloat128, BT uuFloat128, BT uuFloat128, BT uuFloat128, BT uuFloat128, BT uuFloat128,
440 BT uuFloat128, BT uuFloat128, BT uuFloat128, BT uFloat128Complex, BT uuFloat128, BT uFloat128Complex,
441 BT uuFloat128, BT uFloat128Complex, BT uuFloat128, BT uFloat128Complex, BT uuFloat128, BT uFloat128Complex,
442 BT uuFloat128, BT uFloat128Complex, BT uuFloat128, BT uFloat128Complex, BT uuFloat128, BT uuFloat128,
443 BT uFloat128Complex, BT uuFloat128, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
444 },
445 {
446 /* LD*/ BT LongDouble, BT LongDouble, BT LongDouble, BT LongDouble, BT LongDouble, BT LongDouble,
447 BT LongDouble, BT LongDouble, BT LongDouble, BT LongDouble, BT LongDouble, BT LongDouble,
448 BT LongDouble, BT LongDouble, BT LongDouble, BT LongDoubleComplex, BT LongDouble, BT LongDoubleComplex,
449 BT LongDouble, BT LongDoubleComplex, BT LongDouble, BT LongDoubleComplex, BT LongDouble, BT LongDoubleComplex,
450 BT LongDouble, BT LongDoubleComplex, BT LongDouble, BT LongDoubleComplex, BT LongDouble, BT LongDouble,
451 BT LongDoubleComplex, BT LongDouble, BT LongDouble, BT LongDoubleComplex, BT uFloat128x, BT uFloat128xComplex,
452 },
453 {
454 /* LDC*/ BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex,
455 BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex,
456 BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex,
457 BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex,
458 BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex,
459 BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT LongDoubleComplex, BT uFloat128xComplex, BT uFloat128xComplex,
460 },
461 {
462 /* _FBX*/ BT uFloat128x, BT uFloat128x, BT uFloat128x, BT uFloat128x, BT uFloat128x, BT uFloat128x,
463 BT uFloat128x, BT uFloat128x, BT uFloat128x, BT uFloat128x, BT uFloat128x, BT uFloat128x,
464 BT uFloat128x, BT uFloat128x, BT uFloat128x, BT uFloat128xComplex, BT uFloat128x, BT uFloat128xComplex,
465 BT uFloat128x, BT uFloat128xComplex, BT uFloat128x, BT uFloat128xComplex, BT uFloat128x, BT uFloat128xComplex,
466 BT uFloat128x, BT uFloat128xComplex, BT uFloat128x, BT uFloat128xComplex, BT uFloat128x, BT uFloat128x,
467 BT uFloat128xComplex, BT uFloat128x, BT uFloat128x, BT uFloat128xComplex, BT uFloat128x, BT uFloat128xComplex,
468 },
469 {
470 /*_FLDXC*/ BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex,
471 BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex,
472 BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex,
473 BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex,
474 BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex,
475 BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex, BT uFloat128xComplex,
476 },
477 }; // commonTypes
478 #undef BT
479 // GENERATED END
480 static_assert(
481 sizeof(commonTypes)/sizeof(commonTypes[0][0]) == BasicType::NUMBER_OF_BASIC_TYPES*BasicType::NUMBER_OF_BASIC_TYPES,
482 "Each basic type kind should have a corresponding row in the combined type matrix"
483 );
484
485 CommonType::CommonType( Type *type2, bool widenFirst, bool widenSecond, const SymTab::Indexer &indexer, TypeEnvironment &env, const OpenVarSet &openVars )
486 : result( 0 ), type2( type2 ), widenFirst( widenFirst ), widenSecond( widenSecond ), indexer( indexer ), env( env ), openVars( openVars ) {
487 }
488
489 void CommonType::postvisit( VoidType * ) {}
490
491 void CommonType::postvisit( BasicType *basicType ) {
492 if ( BasicType *otherBasic = dynamic_cast< BasicType* >( type2 ) ) {
493 BasicType::Kind newType = commonTypes[ basicType->get_kind() ][ otherBasic->get_kind() ];
494 if ( ( ( newType == basicType->get_kind() && basicType->get_qualifiers() >= otherBasic->get_qualifiers() ) || widenFirst ) && ( ( newType == otherBasic->get_kind() && basicType->get_qualifiers() <= otherBasic->get_qualifiers() ) || widenSecond ) ) {
495 result = new BasicType( basicType->get_qualifiers() | otherBasic->get_qualifiers(), newType );
496 } // if
497 } else if ( dynamic_cast< EnumInstType * > ( type2 ) || dynamic_cast< ZeroType* >( type2 ) || dynamic_cast< OneType* >( type2 ) ) {
498 // use signed int in lieu of the enum/zero/one type
499 BasicType::Kind newType = commonTypes[ basicType->get_kind() ][ BasicType::SignedInt ];
500 if ( ( ( newType == basicType->get_kind() && basicType->get_qualifiers() >= type2->get_qualifiers() ) || widenFirst ) && ( ( newType != basicType->get_kind() && basicType->get_qualifiers() <= type2->get_qualifiers() ) || widenSecond ) ) {
501 result = new BasicType( basicType->get_qualifiers() | type2->get_qualifiers(), newType );
502 } // if
503 } // if
504 }
505
506 template< typename Pointer >
507 void CommonType::getCommonWithVoidPointer( Pointer* voidPointer, Pointer* otherPointer ) {
508 if ( TypeInstType* var = dynamic_cast< TypeInstType* >( otherPointer->get_base() ) ) {
509 OpenVarSet::const_iterator entry = openVars.find( var->get_name() );
510 if ( entry != openVars.end() ) {
511 AssertionSet need, have;
512 WidenMode widen( widenFirst, widenSecond );
513 if ( entry != openVars.end() && ! env.bindVar(var, voidPointer->get_base(), entry->second, need, have, openVars, widen, indexer ) ) return;
514 }
515 }
516 result = voidPointer->clone();
517 result->get_qualifiers() |= otherPointer->get_qualifiers();
518 }
519
520 void CommonType::postvisit( PointerType *pointerType ) {
521 if ( PointerType *otherPointer = dynamic_cast< PointerType* >( type2 ) ) {
522 // std::cerr << "commonType: two pointers: " << pointerType << " / " << otherPointer << std::endl;
523 if ( widenFirst && dynamic_cast< VoidType* >( otherPointer->get_base() ) && ! isFtype(pointerType->get_base()) ) {
524 getCommonWithVoidPointer( otherPointer, pointerType );
525 } else if ( widenSecond && dynamic_cast< VoidType* >( pointerType->get_base() ) && ! isFtype(otherPointer->get_base()) ) {
526 getCommonWithVoidPointer( pointerType, otherPointer );
527 } else if ( ( pointerType->get_base()->get_qualifiers() >= otherPointer->get_base()->get_qualifiers() || widenFirst )
528 && ( pointerType->get_base()->get_qualifiers() <= otherPointer->get_base()->get_qualifiers() || widenSecond ) ) {
529 // std::cerr << "middle case" << std::endl;
530 Type::Qualifiers tq1 = pointerType->get_base()->get_qualifiers(), tq2 = otherPointer->get_base()->get_qualifiers();
531 pointerType->get_base()->get_qualifiers() = Type::Qualifiers();
532 otherPointer->get_base()->get_qualifiers() = Type::Qualifiers();
533 AssertionSet have, need;
534 OpenVarSet newOpen( openVars );
535 if ( unifyExact( pointerType->get_base(), otherPointer->get_base(), env, have, need, newOpen, indexer ) ) {
536 // std::cerr << "unifyExact success" << std::endl;
537 if ( tq1 < tq2 ) {
538 result = pointerType->clone();
539 } else {
540 result = otherPointer->clone();
541 } // if
542 strict_dynamic_cast<PointerType*>(result)->base->get_qualifiers() = tq1 | tq2;
543 } else {
544 /// std::cerr << "place for ptr-to-type" << std::endl;
545 } // if
546 pointerType->get_base()->get_qualifiers() = tq1;
547 otherPointer->get_base()->get_qualifiers() = tq2;
548 } // if
549 } else if ( widenSecond && dynamic_cast< ZeroType* >( type2 ) ) {
550 result = pointerType->clone();
551 result->get_qualifiers() |= type2->get_qualifiers();
552 } // if
553 }
554
555 void CommonType::postvisit( ArrayType * ) {}
556
557 void CommonType::postvisit( ReferenceType *refType ) {
558 if ( ReferenceType *otherRef = dynamic_cast< ReferenceType* >( type2 ) ) {
559 // std::cerr << "commonType: both references: " << refType << " / " << otherRef << std::endl;
560 // std::cerr << ( refType->get_base()->get_qualifiers() >= otherRef->get_base()->get_qualifiers() || widenFirst ) << (refType->get_base()->get_qualifiers() <= otherRef->get_base()->get_qualifiers() || widenSecond) << std::endl;
561 if ( widenFirst && dynamic_cast< VoidType* >( otherRef->get_base() ) && ! isFtype(refType->get_base()) ) {
562 getCommonWithVoidPointer( otherRef, refType );
563 } else if ( widenSecond && dynamic_cast< VoidType* >( refType->get_base() ) && ! isFtype(otherRef->get_base()) ) {
564 getCommonWithVoidPointer( refType, otherRef );
565 } else if ( ( refType->get_base()->get_qualifiers() >= otherRef->get_base()->get_qualifiers() || widenFirst )
566 && ( refType->get_base()->get_qualifiers() <= otherRef->get_base()->get_qualifiers() || widenSecond ) ) {
567 // std::cerr << "middle case" << std::endl;
568 Type::Qualifiers tq1 = refType->get_base()->get_qualifiers(), tq2 = otherRef->get_base()->get_qualifiers();
569 refType->get_base()->get_qualifiers() = Type::Qualifiers();
570 otherRef->get_base()->get_qualifiers() = Type::Qualifiers();
571 AssertionSet have, need;
572 OpenVarSet newOpen( openVars );
573 if ( unifyExact( refType->get_base(), otherRef->get_base(), env, have, need, newOpen, indexer ) ) {
574 if ( tq1 < tq2 ) {
575 result = refType->clone();
576 } else {
577 result = otherRef->clone();
578 } // if
579 strict_dynamic_cast<ReferenceType*>(result)->base->get_qualifiers() = tq1 | tq2;
580 } else {
581 /// std::cerr << "place for ptr-to-type" << std::endl;
582 } // if
583 refType->get_base()->get_qualifiers() = tq1;
584 otherRef->get_base()->get_qualifiers() = tq2;
585 } // if
586 } else if ( widenSecond && dynamic_cast< ZeroType* >( type2 ) ) {
587 result = refType->clone();
588 result->get_qualifiers() |= type2->get_qualifiers();
589 } // if
590 }
591
592 void CommonType::postvisit( FunctionType * ) {}
593 void CommonType::postvisit( StructInstType * ) {}
594 void CommonType::postvisit( UnionInstType * ) {}
595
596 void CommonType::postvisit( EnumInstType *enumInstType ) {
597 if ( dynamic_cast< BasicType * >( type2 ) || dynamic_cast< ZeroType* >( type2 ) || dynamic_cast< OneType* >( type2 ) ) {
598 // reuse BasicType, EnumInstType code by swapping type2 with enumInstType
599 result = commonType( type2, enumInstType, widenSecond, widenFirst, indexer, env, openVars );
600 } // if
601 }
602
603 void CommonType::postvisit( TraitInstType * ) {
604 }
605
606 void CommonType::postvisit( TypeInstType *inst ) {
607 if ( widenFirst ) {
608 NamedTypeDecl *nt = indexer.lookupType( inst->get_name() );
609 if ( nt ) {
610 TypeDecl *type = strict_dynamic_cast< TypeDecl* >( nt );
611 if ( type->get_base() ) {
612 Type::Qualifiers tq1 = inst->get_qualifiers(), tq2 = type2->get_qualifiers();
613 AssertionSet have, need;
614 OpenVarSet newOpen( openVars );
615 type2->get_qualifiers() = Type::Qualifiers();
616 type->get_base()->get_qualifiers() = tq1;
617 if ( unifyExact( type->get_base(), type2, env, have, need, newOpen, indexer ) ) {
618 result = type2->clone();
619 result->get_qualifiers() = tq1 | tq2;
620 } // if
621 type2->get_qualifiers() = tq2;
622 type->get_base()->get_qualifiers() = Type::Qualifiers();
623 } // if
624 } // if
625 } // if
626 }
627
628 void CommonType::postvisit( TupleType * ) {}
629 void CommonType::postvisit( VarArgsType * ) {}
630
631 void CommonType::postvisit( ZeroType *zeroType ) {
632 if ( widenFirst ) {
633 if ( dynamic_cast< BasicType* >( type2 ) || dynamic_cast< PointerType* >( type2 ) || dynamic_cast< EnumInstType* >( type2 ) ) {
634 if ( widenSecond || zeroType->get_qualifiers() <= type2->get_qualifiers() ) {
635 result = type2->clone();
636 result->get_qualifiers() |= zeroType->get_qualifiers();
637 }
638 } else if ( widenSecond && dynamic_cast< OneType* >( type2 ) ) {
639 result = new BasicType( zeroType->get_qualifiers(), BasicType::SignedInt );
640 result->get_qualifiers() |= type2->get_qualifiers();
641 }
642 }
643 }
644
645 void CommonType::postvisit( OneType *oneType ) {
646 if ( widenFirst ) {
647 if ( dynamic_cast< BasicType* >( type2 ) || dynamic_cast< EnumInstType* >( type2 ) ) {
648 if ( widenSecond || oneType->get_qualifiers() <= type2->get_qualifiers() ) {
649 result = type2->clone();
650 result->get_qualifiers() |= oneType->get_qualifiers();
651 }
652 } else if ( widenSecond && dynamic_cast< ZeroType* >( type2 ) ) {
653 result = new BasicType( oneType->get_qualifiers(), BasicType::SignedInt );
654 result->get_qualifiers() |= type2->get_qualifiers();
655 }
656 }
657 }
658} // namespace ResolvExpr
659
660// Local Variables: //
661// tab-width: 4 //
662// mode: c++ //
663// compile-command: "make install" //
664// End: //
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