18 using namespace clang;
19 using namespace CodeGen;
26 "cannot yet compile %0 in this ABI");
46 bool CopyDeleted =
false;
47 bool MoveDeleted =
false;
49 if (CD->isCopyConstructor() || CD->isMoveConstructor()) {
50 assert(CD->isTrivial());
55 if (CD->isCopyConstructor())
64 return !(CopyDeleted && MoveDeleted);
89 return llvm::Constant::getNullValue(FTy->getPointerTo());
99 return llvm::Constant::getNullValue(Ty);
110 llvm::Constant *Src) {
165 params.push_back(ThisDecl);
166 CGF.CXXABIThisDecl = ThisDecl;
174 CGF.CXXABIThisAlignment = Layout.getAlignment();
176 CGF.CXXABIThisAlignment = Layout.getNonVirtualAlignment();
182 assert(
getThisDecl(CGF) &&
"no 'this' variable for function");
190 CGF.EmitReturnOfRValue(RV, ResultType);
243 numElements =
nullptr;
259 return llvm::ConstantInt::get(CGF.
SizeTy, 0);
266 assert(E->
getCastKind() == CK_DerivedToBaseMemberPointer ||
267 E->
getCastKind() == CK_BaseToDerivedMemberPointer);
270 if (E->
getCastKind() == CK_DerivedToBaseMemberPointer)
290 const CXXRecordDecl *RD = cast<CXXRecordDecl>(MPD->getDeclContext());
291 for (
unsigned I = 0, N = Path.size();
I != N; ++
I) {
295 std::swap(Base, Derived);
301 ThisAdjustment = -ThisAdjustment;
302 return ThisAdjustment;
309 llvm_unreachable(
"shouldn't be called in this ABI");
331 return std::vector<CharUnits>();
CastKind getCastKind() const
virtual llvm::Constant * EmitMemberPointer(const APValue &MP, QualType MPT)
Create a member pointer for the given member pointer constant.
const internal::VariadicDynCastAllOfMatcher< Stmt, Expr > expr
Matches expressions.
A (possibly-)qualified type.
CodeGenTypes & getTypes()
DestructionKind isDestructedType() const
Returns a nonzero value if objects of this type require non-trivial work to clean up after...
virtual void EmitReturnFromThunk(CodeGenFunction &CGF, RValue RV, QualType ResultType)
const CGFunctionInfo & arrangeCXXMethodType(const CXXRecordDecl *RD, const FunctionProtoType *FTP, const CXXMethodDecl *MD)
Arrange the argument and result information for a call to an unknown C++ non-static member function o...
const Decl * CurCodeDecl
CurCodeDecl - This is the inner-most code context, which includes blocks.
bool hasNonTrivialDestructor() const
Determine whether this class has a non-trivial destructor (C++ [class.dtor]p3)
FullSourceLoc getFullLoc(SourceLocation Loc) const
QualType getPointeeType() const
DiagnosticBuilder Report(SourceLocation Loc, unsigned DiagID)
Issue the message to the client.
llvm::IntegerType * Int8Ty
i8, i16, i32, and i64
Represents a C++ constructor within a class.
bool doesUsualArrayDeleteWantSize() const
Answers whether the usual array deallocation function for the allocated type expects the size of the ...
virtual llvm::BasicBlock * EmitCtorCompleteObjectHandler(CodeGenFunction &CGF, const CXXRecordDecl *RD)
Address GetAddrOfLocalVar(const VarDecl *VD)
GetAddrOfLocalVar - Return the address of a local variable.
A this pointer adjustment.
QualType getThisType(ASTContext &C) const
Returns the type of the this pointer.
Address CreateConstInBoundsByteGEP(Address Addr, CharUnits Offset, const llvm::Twine &Name="")
Given a pointer to i8, adjust it by a given constant offset.
void EmitThisParam(CodeGenFunction &CGF)
Perform prolog initialization of the parameter variable suitable for 'this' emitted by buildThisParam...
virtual bool requiresArrayCookie(const CXXDeleteExpr *E, QualType eltType)
ArrayRef< const CXXRecordDecl * > getMemberPointerPath() const
CodeGenFunction - This class organizes the per-function state that is used while generating LLVM code...
llvm::Type * ConvertType(QualType T)
ConvertType - Convert type T into a llvm::Type.
bool hasNonTrivialCopyConstructor() const
Determine whether this class has a non-trivial copy constructor (C++ [class.copy]p6, C++11 [class.copy]p12)
llvm::IntegerType * SizeTy
virtual bool isThisCompleteObject(GlobalDecl GD) const =0
Determine whether there's something special about the rules of the ABI tell us that 'this' is a compl...
static CharUnits Zero()
Zero - Construct a CharUnits quantity of zero.
const Decl * getDecl() const
virtual llvm::Value * EmitMemberDataPointerAddress(CodeGenFunction &CGF, const Expr *E, Address Base, llvm::Value *MemPtr, const MemberPointerType *MPT)
Calculate an l-value from an object and a data member pointer.
Address CreateElementBitCast(Address Addr, llvm::Type *Ty, const llvm::Twine &Name="")
Cast the element type of the given address to a different type, preserving information like the align...
CharUnits - This is an opaque type for sizes expressed in character units.
const ValueDecl * getMemberPointerDecl() const
const CXXRecordDecl * getParent() const
Returns the parent of this method declaration, which is the class in which this method is defined...
path_iterator path_begin()
Concrete class used by the front-end to report problems and issues.
virtual llvm::Value * EmitMemberPointerIsNotNull(CodeGenFunction &CGF, llvm::Value *MemPtr, const MemberPointerType *MPT)
Determine if a member pointer is non-null. Returns an i1.
llvm::Constant * getTerminateFn()
Get the declaration of std::terminate for the platform.
ImplicitParamDecl * getThisDecl(CodeGenFunction &CGF)
const ASTRecordLayout & getASTRecordLayout(const RecordDecl *D) const
Get or compute information about the layout of the specified record (struct/union/class) D...
CastExpr - Base class for type casts, including both implicit casts (ImplicitCastExpr) and explicit c...
GlobalDecl CurGD
CurGD - The GlobalDecl for the current function being compiled.
detail::InMemoryDirectory::const_iterator I
virtual llvm::Type * ConvertMemberPointerType(const MemberPointerType *MPT)
Find the LLVM type used to represent the given member pointer type.
virtual bool isZeroInitializable(const MemberPointerType *MPT)
Return true if the given member pointer can be zero-initialized (in the C++ sense) with an LLVM zeroi...
Represents a prototype with parameter type info, e.g.
llvm::CallInst * EmitNounwindRuntimeCall(llvm::Value *callee, const Twine &name="")
virtual CharUnits GetArrayCookieSize(const CXXNewExpr *expr)
Returns the extra size required in order to store the array cookie for the given new-expression.
const TargetInfo & getTarget() const
RValue - This trivial value class is used to represent the result of an expression that is evaluated...
bool hasConstructorVariants() const
Does this ABI have different entrypoints for complete-object and base-subobject constructors?
llvm::Value * getPointer() const
const Type * getTypeForDecl() const
ValueDecl - Represent the declaration of a variable (in which case it is an lvalue) a function (in wh...
Expr - This represents one expression.
virtual CharUnits getArrayCookieSizeImpl(QualType elementType)
Returns the extra size required in order to store the array cookie for the given type.
virtual void ReadArrayCookie(CodeGenFunction &CGF, Address Ptr, const CXXDeleteExpr *expr, QualType ElementType, llvm::Value *&NumElements, llvm::Value *&AllocPtr, CharUnits &CookieSize)
Reads the array cookie associated with the given pointer, if it has one.
bool isMemberPointerToDerivedMember() const
CharUnits getBaseClassOffset(const CXXRecordDecl *Base) const
getBaseClassOffset - Get the offset, in chars, for the given base class.
ASTContext & getContext() const
QualType getAllocatedType() const
virtual llvm::Constant * EmitMemberFunctionPointer(const CXXMethodDecl *MD)
Create a member pointer for the given method.
void ErrorUnsupportedABI(CodeGenFunction &CGF, StringRef S)
Issue a diagnostic about unsupported features in the ABI.
GlobalDecl - represents a global declaration.
The l-value was considered opaque, so the alignment was determined from a type.
virtual llvm::Value * EmitMemberPointerConversion(CodeGenFunction &CGF, const CastExpr *E, llvm::Value *Src)
Perform a derived-to-base, base-to-derived, or bitcast member pointer conversion. ...
virtual bool NeedsVTTParameter(GlobalDecl GD)
Return whether the given global decl needs a VTT parameter.
ASTContext & getContext() const
IdentifierInfo & get(StringRef Name)
Return the identifier token info for the specified named identifier.
bool canCopyArgument(const CXXRecordDecl *RD) const
Returns true if C++ allows us to copy the memory of an object of type RD when it is passed as an argu...
Represents a new-expression for memory allocation and constructor calls, e.g: "new CXXNewExpr(foo)"...
Represents a static or instance method of a struct/union/class.
virtual CatchTypeInfo getCatchAllTypeInfo()
unsigned getCustomDiagID(Level L, const char(&FormatString)[N])
Return an ID for a diagnostic with the specified format string and level.
unsigned getAddressSpace() const
Return the address space that this address resides in.
virtual llvm::Constant * EmitNullMemberPointer(const MemberPointerType *MPT)
Create a null member pointer of the given type.
The MS C++ ABI needs a pointer to RTTI data plus some flags to describe the type of a catch handler...
virtual Address InitializeArrayCookie(CodeGenFunction &CGF, Address NewPtr, llvm::Value *NumElements, const CXXNewExpr *expr, QualType ElementType)
Initialize the array cookie for the given allocation.
llvm::Constant * getMemberPointerAdjustment(const CastExpr *E)
A utility method for computing the offset required for the given base-to-derived or derived-to-base m...
FunctionArgList - Type for representing both the decl and type of parameters to a function...
virtual llvm::Value * EmitMemberPointerComparison(CodeGenFunction &CGF, llvm::Value *L, llvm::Value *R, const MemberPointerType *MPT, bool Inequality)
Emit a comparison between two member pointers. Returns an i1.
QualType getMemberPointerType(QualType T, const Type *Cls) const
Return the uniqued reference to the type for a member pointer to the specified type in the specified ...
Represents a delete expression for memory deallocation and destructor calls, e.g. ...
virtual llvm::Value * readArrayCookieImpl(CodeGenFunction &IGF, Address ptr, CharUnits cookieSize)
Reads the array cookie for an allocation which is known to have one.
llvm::LoadInst * CreateLoad(Address Addr, const llvm::Twine &Name="")
void buildThisParam(CodeGenFunction &CGF, FunctionArgList &Params)
Build a parameter variable suitable for 'this'.
detail::InMemoryDirectory::const_iterator E
A pointer to member type per C++ 8.3.3 - Pointers to members.
A helper class that allows the use of isa/cast/dyncast to detect TagType objects of structs/unions/cl...
QualType getPointerDiffType() const
Return the unique type for "ptrdiff_t" (C99 7.17) defined in <stddef.h>.
const T * getAs() const
Member-template getAs<specific type>'.
static ImplicitParamDecl * Create(ASTContext &C, DeclContext *DC, SourceLocation IdLoc, IdentifierInfo *Id, QualType T)
ASTContext & getContext() const
virtual llvm::Constant * EmitMemberDataPointer(const MemberPointerType *MPT, CharUnits offset)
Create a member pointer for the given field.
llvm::Constant * GetNonVirtualBaseClassOffset(const CXXRecordDecl *ClassDecl, CastExpr::path_const_iterator PathBegin, CastExpr::path_const_iterator PathEnd)
Returns the offset from a derived class to a class.
CXXRecordDecl * getAsCXXRecordDecl() const
Retrieves the CXXRecordDecl that this type refers to, either because the type is a RecordType or beca...
APValue - This class implements a discriminated union of [uninitialized] [APSInt] [APFloat]...
const Type * getClass() const
bool hasNonTrivialMoveConstructor() const
Determine whether this class has a non-trivial move constructor (C++11 [class.copy]p12) ...
DiagnosticsEngine & getDiags() const
Represents a C++ struct/union/class.
TargetCXXABI getCXXABI() const
Get the C++ ABI currently in use.
llvm::Type * ConvertType(QualType T)
bool doesUsualArrayDeleteWantSize() const
Answers whether the usual array deallocation function for the allocated type expects the size of the ...
virtual llvm::Value * EmitLoadOfMemberFunctionPointer(CodeGenFunction &CGF, const Expr *E, Address This, llvm::Value *&ThisPtrForCall, llvm::Value *MemPtr, const MemberPointerType *MPT)
Load a member function from an object and a member function pointer.
virtual llvm::CallInst * emitTerminateForUnexpectedException(CodeGenFunction &CGF, llvm::Value *Exn)
virtual std::vector< CharUnits > getVBPtrOffsets(const CXXRecordDecl *RD)
Gets the offsets of all the virtual base pointers in a given class.
unsigned getNumVBases() const
Retrieves the number of virtual base classes of this class.
llvm::Constant * GetBogusMemberPointer(QualType T)
Get a null value for unsupported member pointers.
CharUnits getMemberPointerPathAdjustment(const APValue &MP)
Computes the non-virtual adjustment needed for a member pointer conversion along an inheritance path ...
llvm::FunctionType * GetFunctionType(const CGFunctionInfo &Info)
GetFunctionType - Get the LLVM function type for.