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construct debug info for "id" by hand. 

Tested by mi1-var-obj.exp in gdb testsuite.

llvm-svn: 109571
This commit is contained in:
Devang Patel 2010-07-28 01:33:15 +00:00
parent 7a066723d0
commit a652fab052
1 changed files with 35 additions and 3 deletions
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38
clang/lib/CodeGen/CGDebugInfo.cpp
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@ -251,12 +251,44 @@ llvm::DIType CGDebugInfo::CreateType(const BuiltinType *BT,
default:
case BuiltinType::Void:
return llvm::DIType();
case BuiltinType::ObjCId:
// id is struct objc_object *.
case BuiltinType::ObjCClass:
return DebugFactory.CreateCompositeType(llvm::dwarf::DW_TAG_structure_type,
Unit, "objc_object", Unit, 0, 0, 0, 0,
Unit, "objc_class", Unit, 0, 0, 0, 0,
llvm::DIType::FlagFwdDecl,
llvm::DIType(), llvm::DIArray());
case BuiltinType::ObjCId: {
// typedef struct objc_class *Class;
// typedef struct objc_object {
// Class isa;
// } *id;
llvm::DIType OCTy =
DebugFactory.CreateCompositeType(llvm::dwarf::DW_TAG_structure_type,
Unit, "objc_class", Unit, 0, 0, 0, 0,
llvm::DIType::FlagFwdDecl,
llvm::DIType(), llvm::DIArray());
unsigned Size = CGM.getContext().getTypeSize(CGM.getContext().VoidPtrTy);
llvm::DIType ISATy =
DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_pointer_type,
Unit, "", Unit,
0, Size, 0, 0, 0, OCTy);
llvm::SmallVector<llvm::DIDescriptor, 16> EltTys;
llvm::DIType FieldTy =
DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_member, Unit,
"isa", Unit,
0,Size, 0, 0, 0, ISATy);
EltTys.push_back(FieldTy);
llvm::DIArray Elements =
DebugFactory.GetOrCreateArray(EltTys.data(), EltTys.size());
return DebugFactory.CreateCompositeType(llvm::dwarf::DW_TAG_structure_type,
Unit, "objc_object", Unit, 0, 0, 0, 0,
0,
llvm::DIType(), Elements);
}
case BuiltinType::UChar:
case BuiltinType::Char_U: Encoding = llvm::dwarf::DW_ATE_unsigned_char; break;
case BuiltinType::Char_S: