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While emitting debugging infor for a C++ class, identify the holder of class's vtable, if any. 

llvm-svn: 94712
This commit is contained in:
Devang Patel 2010-01-28 00:54:21 +00:00
parent 3d4e6d9dd0
commit abb4413728
1 changed files with 11 additions and 1 deletions
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12
clang/lib/CodeGen/CGDebugInfo.cpp
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@ -738,9 +738,18 @@ llvm::DIType CGDebugInfo::CreateType(const RecordType *Ty,
llvm::SmallVector<llvm::DIDescriptor, 16> EltTys;
CollectRecordFields(Decl, Unit, EltTys);
llvm::MDNode *ContainingType = NULL;
if (CXXRecordDecl *CXXDecl = dyn_cast<CXXRecordDecl>(Decl)) {
CollectCXXMemberFunctions(CXXDecl, Unit, EltTys, FwdDecl);
CollectCXXBases(CXXDecl, Unit, EltTys, FwdDecl);
// A class's primary base or the class itself contains the vtable.
const ASTRecordLayout &RL = CGM.getContext().getASTRecordLayout(Decl);
if (const CXXRecordDecl *PBase = RL.getPrimaryBase())
ContainingType =
getOrCreateType(QualType(PBase->getTypeForDecl(), 0), Unit).getNode();
else if (CXXDecl->isDynamicClass())
ContainingType = FwdDecl.getNode();
}
llvm::DIArray Elements =
@ -753,7 +762,8 @@ llvm::DIType CGDebugInfo::CreateType(const RecordType *Ty,
llvm::DICompositeType RealDecl =
DebugFactory.CreateCompositeType(Tag, Unit, Decl->getName(),
DefUnit, Line, Size, Align, 0, 0,
llvm::DIType(), Elements);
llvm::DIType(), Elements,
0, ContainingType);
// Now that we have a real decl for the struct, replace anything using the
// old decl with the new one. This will recursively update the debug info.