1//===-- CGValue.h - LLVM CodeGen wrappers for llvm::Value* ------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// These classes implement wrappers around llvm::Value in order to
10// fully represent the range of values for C L- and R- values.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_CLANG_LIB_CODEGEN_CGVALUE_H
15#define LLVM_CLANG_LIB_CODEGEN_CGVALUE_H
16
17#include "clang/AST/ASTContext.h"
18#include "clang/AST/Type.h"
19#include "llvm/IR/Value.h"
20#include "llvm/IR/Type.h"
21#include "Address.h"
22#include "CodeGenTBAA.h"
23
24namespace llvm {
25 class Constant;
26 class MDNode;
27}
28
29namespace clang {
30namespace CodeGen {
31 class AggValueSlot;
32 class CodeGenFunction;
33 struct CGBitFieldInfo;
34
35/// RValue - This trivial value class is used to represent the result of an
36/// expression that is evaluated. It can be one of three things: either a
37/// simple LLVM SSA value, a pair of SSA values for complex numbers, or the
38/// address of an aggregate value in memory.
39class RValue {
40 enum Flavor { Scalar, Complex, Aggregate };
41
42 // The shift to make to an aggregate's alignment to make it look
43 // like a pointer.
44 enum { AggAlignShift = 4 };
45
46 // Stores first value and flavor.
47 llvm::PointerIntPair<llvm::Value *, 2, Flavor> V1;
48 // Stores second value and volatility.
49 llvm::PointerIntPair<llvm::Value *, 1, bool> V2;
50
51public:
52 bool isScalar() const { return V1.getInt() == Scalar; }
53 bool isComplex() const { return V1.getInt() == Complex; }
54 bool isAggregate() const { return V1.getInt() == Aggregate; }
55
56 bool isVolatileQualified() const { return V2.getInt(); }
57
58 /// getScalarVal() - Return the Value* of this scalar value.
59 llvm::Value *getScalarVal() const {
60 assert(isScalar() && "Not a scalar!");
61 return V1.getPointer();
62 }
63
64 /// getComplexVal - Return the real/imag components of this complex value.
65 ///
66 std::pair<llvm::Value *, llvm::Value *> getComplexVal() const {
67 return std::make_pair(V1.getPointer(), V2.getPointer());
68 }
69
70 /// getAggregateAddr() - Return the Value* of the address of the aggregate.
71 Address getAggregateAddress() const {
72 assert(isAggregate() && "Not an aggregate!");
73 auto align = reinterpret_cast<uintptr_t>(V2.getPointer()) >> AggAlignShift;
74 return Address(V1.getPointer(), CharUnits::fromQuantity(align));
75 }
76 llvm::Value *getAggregatePointer() const {
77 assert(isAggregate() && "Not an aggregate!");
78 return V1.getPointer();
79 }
80
81 static RValue getIgnored() {
82 // FIXME: should we make this a more explicit state?
83 return get(nullptr);
84 }
85
86 static RValue get(llvm::Value *V) {
87 RValue ER;
88 ER.V1.setPointer(V);
89 ER.V1.setInt(Scalar);
90 ER.V2.setInt(false);
91 return ER;
92 }
93 static RValue getComplex(llvm::Value *V1, llvm::Value *V2) {
94 RValue ER;
95 ER.V1.setPointer(V1);
96 ER.V2.setPointer(V2);
97 ER.V1.setInt(Complex);
98 ER.V2.setInt(false);
99 return ER;
100 }
101 static RValue getComplex(const std::pair<llvm::Value *, llvm::Value *> &C) {
102 return getComplex(C.first, C.second);
103 }
104 // FIXME: Aggregate rvalues need to retain information about whether they are
105 // volatile or not. Remove default to find all places that probably get this
106 // wrong.
107 static RValue getAggregate(Address addr, bool isVolatile = false) {
108 RValue ER;
109 ER.V1.setPointer(addr.getPointer());
110 ER.V1.setInt(Aggregate);
111
112 auto align = static_cast<uintptr_t>(addr.getAlignment().getQuantity());
113 ER.V2.setPointer(reinterpret_cast<llvm::Value*>(align << AggAlignShift));
114 ER.V2.setInt(isVolatile);
115 return ER;
116 }
117};
118
119/// Does an ARC strong l-value have precise lifetime?
120enum ARCPreciseLifetime_t {
121 ARCImpreciseLifetime, ARCPreciseLifetime
122};
123
124/// The source of the alignment of an l-value; an expression of
125/// confidence in the alignment actually matching the estimate.
126enum class AlignmentSource {
127 /// The l-value was an access to a declared entity or something
128 /// equivalently strong, like the address of an array allocated by a
129 /// language runtime.
130 Decl,
131
132 /// The l-value was considered opaque, so the alignment was
133 /// determined from a type, but that type was an explicitly-aligned
134 /// typedef.
135 AttributedType,
136
137 /// The l-value was considered opaque, so the alignment was
138 /// determined from a type.
139 Type
140};
141
142/// Given that the base address has the given alignment source, what's
143/// our confidence in the alignment of the field?
144static inline AlignmentSource getFieldAlignmentSource(AlignmentSource Source) {
145 // For now, we don't distinguish fields of opaque pointers from
146 // top-level declarations, but maybe we should.
147 return AlignmentSource::Decl;
148}
149
150class LValueBaseInfo {
151 AlignmentSource AlignSource;
152
153public:
154 explicit LValueBaseInfo(AlignmentSource Source = AlignmentSource::Type)
155 : AlignSource(Source) {}
156 AlignmentSource getAlignmentSource() const { return AlignSource; }
157 void setAlignmentSource(AlignmentSource Source) { AlignSource = Source; }
158
159 void mergeForCast(const LValueBaseInfo &Info) {
160 setAlignmentSource(Info.getAlignmentSource());
161 }
162};
163
164/// LValue - This represents an lvalue references. Because C/C++ allow
165/// bitfields, this is not a simple LLVM pointer, it may be a pointer plus a
166/// bitrange.
167class LValue {
168 enum {
169 Simple, // This is a normal l-value, use getAddress().
170 VectorElt, // This is a vector element l-value (V[i]), use getVector*
171 BitField, // This is a bitfield l-value, use getBitfield*.
172 ExtVectorElt, // This is an extended vector subset, use getExtVectorComp
173 GlobalReg, // This is a register l-value, use getGlobalReg()
174 MatrixElt // This is a matrix element, use getVector*
175 } LVType;
176
177 llvm::Value *V;
178
179 union {
180 // Index into a vector subscript: V[i]
181 llvm::Value *VectorIdx;
182
183 // ExtVector element subset: V.xyx
184 llvm::Constant *VectorElts;
185
186 // BitField start bit and size
187 const CGBitFieldInfo *BitFieldInfo;
188 };
189
190 QualType Type;
191
192 // 'const' is unused here
193 Qualifiers Quals;
194
195 // The alignment to use when accessing this lvalue. (For vector elements,
196 // this is the alignment of the whole vector.)
197 unsigned Alignment;
198
199 // objective-c's ivar
200 bool Ivar:1;
201
202 // objective-c's ivar is an array
203 bool ObjIsArray:1;
204
205 // LValue is non-gc'able for any reason, including being a parameter or local
206 // variable.
207 bool NonGC: 1;
208
209 // Lvalue is a global reference of an objective-c object
210 bool GlobalObjCRef : 1;
211
212 // Lvalue is a thread local reference
213 bool ThreadLocalRef : 1;
214
215 // Lvalue has ARC imprecise lifetime. We store this inverted to try
216 // to make the default bitfield pattern all-zeroes.
217 bool ImpreciseLifetime : 1;
218
219 // This flag shows if a nontemporal load/stores should be used when accessing
220 // this lvalue.
221 bool Nontemporal : 1;
222
223 LValueBaseInfo BaseInfo;
224 TBAAAccessInfo TBAAInfo;
225
226 Expr *BaseIvarExp;
227
228private:
229 void Initialize(QualType Type, Qualifiers Quals, CharUnits Alignment,
230 LValueBaseInfo BaseInfo, TBAAAccessInfo TBAAInfo) {
231 assert((!Alignment.isZero() || Type->isIncompleteType()) &&
232 "initializing l-value with zero alignment!");
233 this->Type = Type;
234 this->Quals = Quals;
235 const unsigned MaxAlign = 1U << 31;
236 this->Alignment = Alignment.getQuantity() <= MaxAlign
237 ? Alignment.getQuantity()
238 : MaxAlign;
239 assert(this->Alignment == Alignment.getQuantity() &&
240 "Alignment exceeds allowed max!");
241 this->BaseInfo = BaseInfo;
242 this->TBAAInfo = TBAAInfo;
243
244 // Initialize Objective-C flags.
245 this->Ivar = this->ObjIsArray = this->NonGC = this->GlobalObjCRef = false;
246 this->ImpreciseLifetime = false;
247 this->Nontemporal = false;
248 this->ThreadLocalRef = false;
249 this->BaseIvarExp = nullptr;
250 }
251
252public:
253 bool isSimple() const { return LVType == Simple; }
254 bool isVectorElt() const { return LVType == VectorElt; }
255 bool isBitField() const { return LVType == BitField; }
256 bool isExtVectorElt() const { return LVType == ExtVectorElt; }
257 bool isGlobalReg() const { return LVType == GlobalReg; }
258 bool isMatrixElt() const { return LVType == MatrixElt; }
259
260 bool isVolatileQualified() const { return Quals.hasVolatile(); }
261 bool isRestrictQualified() const { return Quals.hasRestrict(); }
262 unsigned getVRQualifiers() const {
263 return Quals.getCVRQualifiers() & ~Qualifiers::Const;
264 }
265
266 QualType getType() const { return Type; }
267
268 Qualifiers::ObjCLifetime getObjCLifetime() const {
269 return Quals.getObjCLifetime();
270 }
271
272 bool isObjCIvar() const { return Ivar; }
273 void setObjCIvar(bool Value) { Ivar = Value; }
274
275 bool isObjCArray() const { return ObjIsArray; }
276 void setObjCArray(bool Value) { ObjIsArray = Value; }
277
278 bool isNonGC () const { return NonGC; }
279 void setNonGC(bool Value) { NonGC = Value; }
280
281 bool isGlobalObjCRef() const { return GlobalObjCRef; }
282 void setGlobalObjCRef(bool Value) { GlobalObjCRef = Value; }
283
284 bool isThreadLocalRef() const { return ThreadLocalRef; }
285 void setThreadLocalRef(bool Value) { ThreadLocalRef = Value;}
286
287 ARCPreciseLifetime_t isARCPreciseLifetime() const {
288 return ARCPreciseLifetime_t(!ImpreciseLifetime);
289 }
290 void setARCPreciseLifetime(ARCPreciseLifetime_t value) {
291 ImpreciseLifetime = (value == ARCImpreciseLifetime);
292 }
293 bool isNontemporal() const { return Nontemporal; }
294 void setNontemporal(bool Value) { Nontemporal = Value; }
295
296 bool isObjCWeak() const {
297 return Quals.getObjCGCAttr() == Qualifiers::Weak;
298 }
299 bool isObjCStrong() const {
300 return Quals.getObjCGCAttr() == Qualifiers::Strong;
301 }
302
303 bool isVolatile() const {
304 return Quals.hasVolatile();
305 }
306
307 Expr *getBaseIvarExp() const { return BaseIvarExp; }
308 void setBaseIvarExp(Expr *V) { BaseIvarExp = V; }
309
310 TBAAAccessInfo getTBAAInfo() const { return TBAAInfo; }
311 void setTBAAInfo(TBAAAccessInfo Info) { TBAAInfo = Info; }
312
313 const Qualifiers &getQuals() const { return Quals; }
314 Qualifiers &getQuals() { return Quals; }
315
316 LangAS getAddressSpace() const { return Quals.getAddressSpace(); }
317
318 CharUnits getAlignment() const { return CharUnits::fromQuantity(Alignment); }
319 void setAlignment(CharUnits A) { Alignment = A.getQuantity(); }
320
321 LValueBaseInfo getBaseInfo() const { return BaseInfo; }
322 void setBaseInfo(LValueBaseInfo Info) { BaseInfo = Info; }
323
324 // simple lvalue
325 llvm::Value *getPointer(CodeGenFunction &CGF) const {
326 assert(isSimple());
327 return V;
328 }
329 Address getAddress(CodeGenFunction &CGF) const {
330 return Address(getPointer(CGF), getAlignment());
331 }
332 void setAddress(Address address) {
333 assert(isSimple());
334 V = address.getPointer();
335 Alignment = address.getAlignment().getQuantity();
336 }
337
338 // vector elt lvalue
339 Address getVectorAddress() const {
340 return Address(getVectorPointer(), getAlignment());
341 }
342 llvm::Value *getVectorPointer() const {
343 assert(isVectorElt());
344 return V;
345 }
346 llvm::Value *getVectorIdx() const {
347 assert(isVectorElt());
348 return VectorIdx;
349 }
350
351 Address getMatrixAddress() const {
352 return Address(getMatrixPointer(), getAlignment());
353 }
354 llvm::Value *getMatrixPointer() const {
355 assert(isMatrixElt());
356 return V;
357 }
358 llvm::Value *getMatrixIdx() const {
359 assert(isMatrixElt());
360 return VectorIdx;
361 }
362
363 // extended vector elements.
364 Address getExtVectorAddress() const {
365 return Address(getExtVectorPointer(), getAlignment());
366 }
367 llvm::Value *getExtVectorPointer() const {
368 assert(isExtVectorElt());
369 return V;
370 }
371 llvm::Constant *getExtVectorElts() const {
372 assert(isExtVectorElt());
373 return VectorElts;
374 }
375
376 // bitfield lvalue
377 Address getBitFieldAddress() const {
378 return Address(getBitFieldPointer(), getAlignment());
379 }
380 llvm::Value *getBitFieldPointer() const { assert(isBitField()); return V; }
381 const CGBitFieldInfo &getBitFieldInfo() const {
382 assert(isBitField());
383 return *BitFieldInfo;
384 }
385
386 // global register lvalue
387 llvm::Value *getGlobalReg() const { assert(isGlobalReg()); return V; }
388
389 static LValue MakeAddr(Address address, QualType type, ASTContext &Context,
390 LValueBaseInfo BaseInfo, TBAAAccessInfo TBAAInfo) {
391 Qualifiers qs = type.getQualifiers();
392 qs.setObjCGCAttr(Context.getObjCGCAttrKind(type));
393
394 LValue R;
395 R.LVType = Simple;
396 assert(address.getPointer()->getType()->isPointerTy());
397 R.V = address.getPointer();
398 R.Initialize(type, qs, address.getAlignment(), BaseInfo, TBAAInfo);
399 return R;
400 }
401
402 static LValue MakeVectorElt(Address vecAddress, llvm::Value *Idx,
403 QualType type, LValueBaseInfo BaseInfo,
404 TBAAAccessInfo TBAAInfo) {
405 LValue R;
406 R.LVType = VectorElt;
407 R.V = vecAddress.getPointer();
408 R.VectorIdx = Idx;
409 R.Initialize(type, type.getQualifiers(), vecAddress.getAlignment(),
410 BaseInfo, TBAAInfo);
411 return R;
412 }
413
414 static LValue MakeExtVectorElt(Address vecAddress, llvm::Constant *Elts,
415 QualType type, LValueBaseInfo BaseInfo,
416 TBAAAccessInfo TBAAInfo) {
417 LValue R;
418 R.LVType = ExtVectorElt;
419 R.V = vecAddress.getPointer();
420 R.VectorElts = Elts;
421 R.Initialize(type, type.getQualifiers(), vecAddress.getAlignment(),
422 BaseInfo, TBAAInfo);
423 return R;
424 }
425
426 /// Create a new object to represent a bit-field access.
427 ///
428 /// \param Addr - The base address of the bit-field sequence this
429 /// bit-field refers to.
430 /// \param Info - The information describing how to perform the bit-field
431 /// access.
432 static LValue MakeBitfield(Address Addr, const CGBitFieldInfo &Info,
433 QualType type, LValueBaseInfo BaseInfo,
434 TBAAAccessInfo TBAAInfo) {
435 LValue R;
436 R.LVType = BitField;
437 R.V = Addr.getPointer();
438 R.BitFieldInfo = &Info;
439 R.Initialize(type, type.getQualifiers(), Addr.getAlignment(), BaseInfo,
440 TBAAInfo);
441 return R;
442 }
443
444 static LValue MakeGlobalReg(Address Reg, QualType type) {
445 LValue R;
446 R.LVType = GlobalReg;
447 R.V = Reg.getPointer();
448 R.Initialize(type, type.getQualifiers(), Reg.getAlignment(),
449 LValueBaseInfo(AlignmentSource::Decl), TBAAAccessInfo());
450 return R;
451 }
452
453 static LValue MakeMatrixElt(Address matAddress, llvm::Value *Idx,
454 QualType type, LValueBaseInfo BaseInfo,
455 TBAAAccessInfo TBAAInfo) {
456 LValue R;
457 R.LVType = MatrixElt;
458 R.V = matAddress.getPointer();
459 R.VectorIdx = Idx;
460 R.Initialize(type, type.getQualifiers(), matAddress.getAlignment(),
461 BaseInfo, TBAAInfo);
462 return R;
463 }
464
465 RValue asAggregateRValue(CodeGenFunction &CGF) const {
466 return RValue::getAggregate(getAddress(CGF), isVolatileQualified());
467 }
468};
469
470/// An aggregate value slot.
471class AggValueSlot {
472 /// The address.
473 llvm::Value *Addr;
474
475 // Qualifiers
476 Qualifiers Quals;
477
478 unsigned Alignment;
479
480 /// DestructedFlag - This is set to true if some external code is
481 /// responsible for setting up a destructor for the slot. Otherwise
482 /// the code which constructs it should push the appropriate cleanup.
483 bool DestructedFlag : 1;
484
485 /// ObjCGCFlag - This is set to true if writing to the memory in the
486 /// slot might require calling an appropriate Objective-C GC
487 /// barrier. The exact interaction here is unnecessarily mysterious.
488 bool ObjCGCFlag : 1;
489
490 /// ZeroedFlag - This is set to true if the memory in the slot is
491 /// known to be zero before the assignment into it. This means that
492 /// zero fields don't need to be set.
493 bool ZeroedFlag : 1;
494
495 /// AliasedFlag - This is set to true if the slot might be aliased
496 /// and it's not undefined behavior to access it through such an
497 /// alias. Note that it's always undefined behavior to access a C++
498 /// object that's under construction through an alias derived from
499 /// outside the construction process.
500 ///
501 /// This flag controls whether calls that produce the aggregate
502 /// value may be evaluated directly into the slot, or whether they
503 /// must be evaluated into an unaliased temporary and then memcpy'ed
504 /// over. Since it's invalid in general to memcpy a non-POD C++
505 /// object, it's important that this flag never be set when
506 /// evaluating an expression which constructs such an object.
507 bool AliasedFlag : 1;
508
509 /// This is set to true if the tail padding of this slot might overlap
510 /// another object that may have already been initialized (and whose
511 /// value must be preserved by this initialization). If so, we may only
512 /// store up to the dsize of the type. Otherwise we can widen stores to
513 /// the size of the type.
514 bool OverlapFlag : 1;
515
516 /// If is set to true, sanitizer checks are already generated for this address
517 /// or not required. For instance, if this address represents an object
518 /// created in 'new' expression, sanitizer checks for memory is made as a part
519 /// of 'operator new' emission and object constructor should not generate
520 /// them.
521 bool SanitizerCheckedFlag : 1;
522
523public:
524 enum IsAliased_t { IsNotAliased, IsAliased };
525 enum IsDestructed_t { IsNotDestructed, IsDestructed };
526 enum IsZeroed_t { IsNotZeroed, IsZeroed };
527 enum Overlap_t { DoesNotOverlap, MayOverlap };
528 enum NeedsGCBarriers_t { DoesNotNeedGCBarriers, NeedsGCBarriers };
529 enum IsSanitizerChecked_t { IsNotSanitizerChecked, IsSanitizerChecked };
530
531 /// ignored - Returns an aggregate value slot indicating that the
532 /// aggregate value is being ignored.
533 static AggValueSlot ignored() {
534 return forAddr(Address::invalid(), Qualifiers(), IsNotDestructed,
535 DoesNotNeedGCBarriers, IsNotAliased, DoesNotOverlap);
536 }
537
538 /// forAddr - Make a slot for an aggregate value.
539 ///
540 /// \param quals - The qualifiers that dictate how the slot should
541 /// be initialied. Only 'volatile' and the Objective-C lifetime
542 /// qualifiers matter.
543 ///
544 /// \param isDestructed - true if something else is responsible
545 /// for calling destructors on this object
546 /// \param needsGC - true if the slot is potentially located
547 /// somewhere that ObjC GC calls should be emitted for
548 static AggValueSlot forAddr(Address addr,
549 Qualifiers quals,
550 IsDestructed_t isDestructed,
551 NeedsGCBarriers_t needsGC,
552 IsAliased_t isAliased,
553 Overlap_t mayOverlap,
554 IsZeroed_t isZeroed = IsNotZeroed,
555 IsSanitizerChecked_t isChecked = IsNotSanitizerChecked) {
556 AggValueSlot AV;
557 if (addr.isValid()) {
558 AV.Addr = addr.getPointer();
559 AV.Alignment = addr.getAlignment().getQuantity();
560 } else {
561 AV.Addr = nullptr;
562 AV.Alignment = 0;
563 }
564 AV.Quals = quals;
565 AV.DestructedFlag = isDestructed;
566 AV.ObjCGCFlag = needsGC;
567 AV.ZeroedFlag = isZeroed;
568 AV.AliasedFlag = isAliased;
569 AV.OverlapFlag = mayOverlap;
570 AV.SanitizerCheckedFlag = isChecked;
571 return AV;
572 }
573
574 static AggValueSlot
575 forLValue(const LValue &LV, CodeGenFunction &CGF, IsDestructed_t isDestructed,
576 NeedsGCBarriers_t needsGC, IsAliased_t isAliased,
577 Overlap_t mayOverlap, IsZeroed_t isZeroed = IsNotZeroed,
578 IsSanitizerChecked_t isChecked = IsNotSanitizerChecked) {
579 return forAddr(LV.getAddress(CGF), LV.getQuals(), isDestructed, needsGC,
580 isAliased, mayOverlap, isZeroed, isChecked);
581 }
582
583 IsDestructed_t isExternallyDestructed() const {
584 return IsDestructed_t(DestructedFlag);
585 }
586 void setExternallyDestructed(bool destructed = true) {
587 DestructedFlag = destructed;
588 }
589
590 Qualifiers getQualifiers() const { return Quals; }
591
592 bool isVolatile() const {
593 return Quals.hasVolatile();
594 }
595
596 void setVolatile(bool flag) {
597 if (flag)
598 Quals.addVolatile();
599 else
600 Quals.removeVolatile();
601 }
602
603 Qualifiers::ObjCLifetime getObjCLifetime() const {
604 return Quals.getObjCLifetime();
605 }
606
607 NeedsGCBarriers_t requiresGCollection() const {
608 return NeedsGCBarriers_t(ObjCGCFlag);
609 }
610
611 llvm::Value *getPointer() const {
612 return Addr;
613 }
614
615 Address getAddress() const {
616 return Address(Addr, getAlignment());
617 }
618
619 bool isIgnored() const {
620 return Addr == nullptr;
621 }
622
623 CharUnits getAlignment() const {
624 return CharUnits::fromQuantity(Alignment);
625 }
626
627 IsAliased_t isPotentiallyAliased() const {
628 return IsAliased_t(AliasedFlag);
629 }
630
631 Overlap_t mayOverlap() const {
632 return Overlap_t(OverlapFlag);
633 }
634
635 bool isSanitizerChecked() const {
636 return SanitizerCheckedFlag;
637 }
638
639 RValue asRValue() const {
640 if (isIgnored()) {
641 return RValue::getIgnored();
642 } else {
643 return RValue::getAggregate(getAddress(), isVolatile());
644 }
645 }
646
647 void setZeroed(bool V = true) { ZeroedFlag = V; }
648 IsZeroed_t isZeroed() const {
649 return IsZeroed_t(ZeroedFlag);
650 }
651
652 /// Get the preferred size to use when storing a value to this slot. This
653 /// is the type size unless that might overlap another object, in which
654 /// case it's the dsize.
655 CharUnits getPreferredSize(ASTContext &Ctx, QualType Type) const {
656 return mayOverlap() ? Ctx.getTypeInfoDataSizeInChars(Type).Width
657 : Ctx.getTypeSizeInChars(Type);
658 }
659};
660
661} // end namespace CodeGen
662} // end namespace clang
663
664#endif
665