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-rw-r--r--clang/lib/CodeGen/ItaniumCXXABI.cpp144
1 files changed, 74 insertions, 70 deletions
diff --git a/clang/lib/CodeGen/ItaniumCXXABI.cpp b/clang/lib/CodeGen/ItaniumCXXABI.cpp
index a9090ee13cf..db9e35db4e5 100644
--- a/clang/lib/CodeGen/ItaniumCXXABI.cpp
+++ b/clang/lib/CodeGen/ItaniumCXXABI.cpp
@@ -52,13 +52,13 @@ public:
CGCXXABI(CGM), UseARMMethodPtrABI(UseARMMethodPtrABI),
UseARMGuardVarABI(UseARMGuardVarABI) { }
- bool isReturnTypeIndirect(const CXXRecordDecl *RD) const {
+ bool isReturnTypeIndirect(const CXXRecordDecl *RD) const override {
// Structures with either a non-trivial destructor or a non-trivial
// copy constructor are always indirect.
return !RD->hasTrivialDestructor() || RD->hasNonTrivialCopyConstructor();
}
- RecordArgABI getRecordArgABI(const CXXRecordDecl *RD) const {
+ RecordArgABI getRecordArgABI(const CXXRecordDecl *RD) const override {
// Structures with either a non-trivial destructor or a non-trivial
// copy constructor are always indirect.
if (!RD->hasTrivialDestructor() || RD->hasNonTrivialCopyConstructor())
@@ -66,116 +66,117 @@ public:
return RAA_Default;
}
- bool isZeroInitializable(const MemberPointerType *MPT);
+ bool isZeroInitializable(const MemberPointerType *MPT) override;
- llvm::Type *ConvertMemberPointerType(const MemberPointerType *MPT);
+ llvm::Type *ConvertMemberPointerType(const MemberPointerType *MPT) override;
- llvm::Value *EmitLoadOfMemberFunctionPointer(CodeGenFunction &CGF,
- const Expr *E,
- llvm::Value *&This,
- llvm::Value *MemFnPtr,
- const MemberPointerType *MPT);
+ llvm::Value *
+ EmitLoadOfMemberFunctionPointer(CodeGenFunction &CGF,
+ const Expr *E,
+ llvm::Value *&This,
+ llvm::Value *MemFnPtr,
+ const MemberPointerType *MPT) override;
- llvm::Value *EmitMemberDataPointerAddress(CodeGenFunction &CGF, const Expr *E,
- llvm::Value *Base,
- llvm::Value *MemPtr,
- const MemberPointerType *MPT);
+ llvm::Value *
+ EmitMemberDataPointerAddress(CodeGenFunction &CGF, const Expr *E,
+ llvm::Value *Base,
+ llvm::Value *MemPtr,
+ const MemberPointerType *MPT) override;
llvm::Value *EmitMemberPointerConversion(CodeGenFunction &CGF,
const CastExpr *E,
- llvm::Value *Src);
+ llvm::Value *Src) override;
llvm::Constant *EmitMemberPointerConversion(const CastExpr *E,
- llvm::Constant *Src);
+ llvm::Constant *Src) override;
- llvm::Constant *EmitNullMemberPointer(const MemberPointerType *MPT);
+ llvm::Constant *EmitNullMemberPointer(const MemberPointerType *MPT) override;
- llvm::Constant *EmitMemberPointer(const CXXMethodDecl *MD);
+ llvm::Constant *EmitMemberPointer(const CXXMethodDecl *MD) override;
llvm::Constant *EmitMemberDataPointer(const MemberPointerType *MPT,
- CharUnits offset);
- llvm::Constant *EmitMemberPointer(const APValue &MP, QualType MPT);
+ CharUnits offset) override;
+ llvm::Constant *EmitMemberPointer(const APValue &MP, QualType MPT) override;
llvm::Constant *BuildMemberPointer(const CXXMethodDecl *MD,
CharUnits ThisAdjustment);
llvm::Value *EmitMemberPointerComparison(CodeGenFunction &CGF,
- llvm::Value *L,
- llvm::Value *R,
+ llvm::Value *L, llvm::Value *R,
const MemberPointerType *MPT,
- bool Inequality);
+ bool Inequality) override;
llvm::Value *EmitMemberPointerIsNotNull(CodeGenFunction &CGF,
- llvm::Value *Addr,
- const MemberPointerType *MPT);
+ llvm::Value *Addr,
+ const MemberPointerType *MPT) override;
- llvm::Value *adjustToCompleteObject(CodeGenFunction &CGF,
- llvm::Value *ptr,
- QualType type);
+ llvm::Value *adjustToCompleteObject(CodeGenFunction &CGF, llvm::Value *ptr,
+ QualType type) override;
- llvm::Value *GetVirtualBaseClassOffset(CodeGenFunction &CGF,
- llvm::Value *This,
- const CXXRecordDecl *ClassDecl,
- const CXXRecordDecl *BaseClassDecl);
+ llvm::Value *
+ GetVirtualBaseClassOffset(CodeGenFunction &CGF, llvm::Value *This,
+ const CXXRecordDecl *ClassDecl,
+ const CXXRecordDecl *BaseClassDecl) override;
void BuildConstructorSignature(const CXXConstructorDecl *Ctor,
- CXXCtorType T,
- CanQualType &ResTy,
- SmallVectorImpl<CanQualType> &ArgTys);
+ CXXCtorType T, CanQualType &ResTy,
+ SmallVectorImpl<CanQualType> &ArgTys) override;
- void EmitCXXConstructors(const CXXConstructorDecl *D);
+ void EmitCXXConstructors(const CXXConstructorDecl *D) override;
void BuildDestructorSignature(const CXXDestructorDecl *Dtor,
- CXXDtorType T,
- CanQualType &ResTy,
- SmallVectorImpl<CanQualType> &ArgTys);
+ CXXDtorType T, CanQualType &ResTy,
+ SmallVectorImpl<CanQualType> &ArgTys) override;
bool useThunkForDtorVariant(const CXXDestructorDecl *Dtor,
- CXXDtorType DT) const {
+ CXXDtorType DT) const override {
// Itanium does not emit any destructor variant as an inline thunk.
// Delegating may occur as an optimization, but all variants are either
// emitted with external linkage or as linkonce if they are inline and used.
return false;
}
- void EmitCXXDestructors(const CXXDestructorDecl *D);
+ void EmitCXXDestructors(const CXXDestructorDecl *D) override;
void addImplicitStructorParams(CodeGenFunction &CGF, QualType &ResTy,
- FunctionArgList &Params);
+ FunctionArgList &Params) override;
- void EmitInstanceFunctionProlog(CodeGenFunction &CGF);
+ void EmitInstanceFunctionProlog(CodeGenFunction &CGF) override;
unsigned addImplicitConstructorArgs(CodeGenFunction &CGF,
const CXXConstructorDecl *D,
CXXCtorType Type, bool ForVirtualBase,
- bool Delegating, CallArgList &Args);
+ bool Delegating,
+ CallArgList &Args) override;
void EmitDestructorCall(CodeGenFunction &CGF, const CXXDestructorDecl *DD,
CXXDtorType Type, bool ForVirtualBase,
- bool Delegating, llvm::Value *This);
+ bool Delegating, llvm::Value *This) override;
- void emitVTableDefinitions(CodeGenVTables &CGVT, const CXXRecordDecl *RD);
+ void emitVTableDefinitions(CodeGenVTables &CGVT,
+ const CXXRecordDecl *RD) override;
llvm::Value *getVTableAddressPointInStructor(
CodeGenFunction &CGF, const CXXRecordDecl *VTableClass,
BaseSubobject Base, const CXXRecordDecl *NearestVBase,
- bool &NeedsVirtualOffset);
+ bool &NeedsVirtualOffset) override;
llvm::Constant *
getVTableAddressPointForConstExpr(BaseSubobject Base,
- const CXXRecordDecl *VTableClass);
+ const CXXRecordDecl *VTableClass) override;
llvm::GlobalVariable *getAddrOfVTable(const CXXRecordDecl *RD,
- CharUnits VPtrOffset);
+ CharUnits VPtrOffset) override;
llvm::Value *getVirtualFunctionPointer(CodeGenFunction &CGF, GlobalDecl GD,
- llvm::Value *This, llvm::Type *Ty);
+ llvm::Value *This,
+ llvm::Type *Ty) override;
void EmitVirtualDestructorCall(CodeGenFunction &CGF,
const CXXDestructorDecl *Dtor,
CXXDtorType DtorType, SourceLocation CallLoc,
- llvm::Value *This);
+ llvm::Value *This) override;
- void emitVirtualInheritanceTables(const CXXRecordDecl *RD);
+ void emitVirtualInheritanceTables(const CXXRecordDecl *RD) override;
- void setThunkLinkage(llvm::Function *Thunk, bool ForVTable) {
+ void setThunkLinkage(llvm::Function *Thunk, bool ForVTable) override {
// Allow inlining of thunks by emitting them with available_externally
// linkage together with vtables when needed.
if (ForVTable)
@@ -183,38 +184,40 @@ public:
}
llvm::Value *performThisAdjustment(CodeGenFunction &CGF, llvm::Value *This,
- const ThisAdjustment &TA);
+ const ThisAdjustment &TA) override;
llvm::Value *performReturnAdjustment(CodeGenFunction &CGF, llvm::Value *Ret,
- const ReturnAdjustment &RA);
+ const ReturnAdjustment &RA) override;
- StringRef GetPureVirtualCallName() { return "__cxa_pure_virtual"; }
- StringRef GetDeletedVirtualCallName() { return "__cxa_deleted_virtual"; }
+ StringRef GetPureVirtualCallName() override { return "__cxa_pure_virtual"; }
+ StringRef GetDeletedVirtualCallName() override
+ { return "__cxa_deleted_virtual"; }
- CharUnits getArrayCookieSizeImpl(QualType elementType);
+ CharUnits getArrayCookieSizeImpl(QualType elementType) override;
llvm::Value *InitializeArrayCookie(CodeGenFunction &CGF,
llvm::Value *NewPtr,
llvm::Value *NumElements,
const CXXNewExpr *expr,
- QualType ElementType);
+ QualType ElementType) override;
llvm::Value *readArrayCookieImpl(CodeGenFunction &CGF,
llvm::Value *allocPtr,
- CharUnits cookieSize);
+ CharUnits cookieSize) override;
void EmitGuardedInit(CodeGenFunction &CGF, const VarDecl &D,
- llvm::GlobalVariable *DeclPtr, bool PerformInit);
+ llvm::GlobalVariable *DeclPtr,
+ bool PerformInit) override;
void registerGlobalDtor(CodeGenFunction &CGF, const VarDecl &D,
- llvm::Constant *dtor, llvm::Constant *addr);
+ llvm::Constant *dtor, llvm::Constant *addr) override;
llvm::Function *getOrCreateThreadLocalWrapper(const VarDecl *VD,
llvm::GlobalVariable *Var);
void EmitThreadLocalInitFuncs(
llvm::ArrayRef<std::pair<const VarDecl *, llvm::GlobalVariable *> > Decls,
- llvm::Function *InitFunc);
+ llvm::Function *InitFunc) override;
LValue EmitThreadLocalDeclRefExpr(CodeGenFunction &CGF,
- const DeclRefExpr *DRE);
+ const DeclRefExpr *DRE) override;
- bool NeedsVTTParameter(GlobalDecl GD);
+ bool NeedsVTTParameter(GlobalDecl GD) override;
};
class ARMCXXABI : public ItaniumCXXABI {
@@ -223,22 +226,23 @@ public:
ItaniumCXXABI(CGM, /* UseARMMethodPtrABI = */ true,
/* UseARMGuardVarABI = */ true) {}
- bool HasThisReturn(GlobalDecl GD) const {
+ bool HasThisReturn(GlobalDecl GD) const override {
return (isa<CXXConstructorDecl>(GD.getDecl()) || (
isa<CXXDestructorDecl>(GD.getDecl()) &&
GD.getDtorType() != Dtor_Deleting));
}
- void EmitReturnFromThunk(CodeGenFunction &CGF, RValue RV, QualType ResTy);
+ void EmitReturnFromThunk(CodeGenFunction &CGF, RValue RV,
+ QualType ResTy) override;
- CharUnits getArrayCookieSizeImpl(QualType elementType);
+ CharUnits getArrayCookieSizeImpl(QualType elementType) override;
llvm::Value *InitializeArrayCookie(CodeGenFunction &CGF,
llvm::Value *NewPtr,
llvm::Value *NumElements,
const CXXNewExpr *expr,
- QualType ElementType);
+ QualType ElementType) override;
llvm::Value *readArrayCookieImpl(CodeGenFunction &CGF, llvm::Value *allocPtr,
- CharUnits cookieSize);
+ CharUnits cookieSize) override;
};
}
@@ -1322,7 +1326,7 @@ namespace {
llvm::GlobalVariable *Guard;
CallGuardAbort(llvm::GlobalVariable *Guard) : Guard(Guard) {}
- void Emit(CodeGenFunction &CGF, Flags flags) {
+ void Emit(CodeGenFunction &CGF, Flags flags) override {
CGF.EmitNounwindRuntimeCall(getGuardAbortFn(CGF.CGM, Guard->getType()),
Guard);
}
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