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Do not eagerly cache DITypes because it allows real struct type to be shadowed by forward declared struct type.

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llvm-svn: 84659
This commit is contained in:
Devang Patel
2009-10-20 19:55:01 +00:00
parent baf6dd26ea
commit e21912d1ae
1 changed files with 58 additions and 31 deletions
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89
clang/lib/CodeGen/CGDebugInfo.cpp
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@@ -173,10 +173,14 @@ llvm::DIType CGDebugInfo::CreateType(const BuiltinType *BT,
uint64_t Align = M->getContext().getTypeAlign(BT);
uint64_t Offset = 0;
return DebugFactory.CreateBasicType(Unit,
BT->getName(M->getContext().getLangOptions()),
Unit, 0, Size, Align,
Offset, /*flags*/ 0, Encoding);
llvm::DIType DbgTy =
DebugFactory.CreateBasicType(Unit,
BT->getName(M->getContext().getLangOptions()),
Unit, 0, Size, Align,
Offset, /*flags*/ 0, Encoding);
TypeCache[QualType(BT, 0).getAsOpaquePtr()] = DbgTy.getNode();
return DbgTy;
}
llvm::DIType CGDebugInfo::CreateType(const ComplexType *Ty,
@@ -190,9 +194,12 @@ llvm::DIType CGDebugInfo::CreateType(const ComplexType *Ty,
uint64_t Align = M->getContext().getTypeAlign(Ty);
uint64_t Offset = 0;
return DebugFactory.CreateBasicType(Unit, "complex",
Unit, 0, Size, Align,
Offset, /*flags*/ 0, Encoding);
llvm::DIType DbgTy =
DebugFactory.CreateBasicType(Unit, "complex",
Unit, 0, Size, Align,
Offset, /*flags*/ 0, Encoding);
TypeCache[QualType(Ty, 0).getAsOpaquePtr()] = DbgTy.getNode();
return DbgTy;
}
/// CreateCVRType - Get the qualified type from the cache or create
@@ -226,8 +233,11 @@ llvm::DIType CGDebugInfo::CreateQualifiedType(QualType Ty, llvm::DICompileUnit U
// No need to fill in the Name, Line, Size, Alignment, Offset in case of
// CVR derived types.
return DebugFactory.CreateDerivedType(Tag, Unit, "", llvm::DICompileUnit(),
0, 0, 0, 0, 0, FromTy);
llvm::DIType DbgTy =
DebugFactory.CreateDerivedType(Tag, Unit, "", llvm::DICompileUnit(),
0, 0, 0, 0, 0, FromTy);
TypeCache[Ty.getAsOpaquePtr()] = DbgTy.getNode();
return DbgTy;
}
llvm::DIType CGDebugInfo::CreateType(const ObjCObjectPointerType *Ty,
@@ -238,9 +248,12 @@ llvm::DIType CGDebugInfo::CreateType(const ObjCObjectPointerType *Ty,
uint64_t Size = M->getContext().getTypeSize(Ty);
uint64_t Align = M->getContext().getTypeAlign(Ty);
return DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_pointer_type, Unit,
"", llvm::DICompileUnit(),
0, Size, Align, 0, 0, EltTy);
llvm::DIType DbgTy =
DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_pointer_type, Unit,
"", llvm::DICompileUnit(),
0, Size, Align, 0, 0, EltTy);
TypeCache[QualType(Ty, 0).getAsOpaquePtr()] = DbgTy.getNode();
return DbgTy;
}
llvm::DIType CGDebugInfo::CreateType(const PointerType *Ty,
@@ -251,9 +264,10 @@ llvm::DIType CGDebugInfo::CreateType(const PointerType *Ty,
uint64_t Size = M->getContext().getTypeSize(Ty);
uint64_t Align = M->getContext().getTypeAlign(Ty);
return DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_pointer_type, Unit,
"", llvm::DICompileUnit(),
0, Size, Align, 0, 0, EltTy);
return
DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_pointer_type, Unit,
"", llvm::DICompileUnit(),
0, Size, Align, 0, 0, EltTy);
}
llvm::DIType CGDebugInfo::CreateType(const BlockPointerType *Ty,
@@ -401,8 +415,11 @@ llvm::DIType CGDebugInfo::CreateType(const TypedefType *Ty,
PresumedLoc PLoc = SM.getPresumedLoc(DefLoc);
unsigned Line = PLoc.isInvalid() ? 0 : PLoc.getLine();
return DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_typedef, Unit,
TyName, DefUnit, Line, 0, 0, 0, 0, Src);
llvm::DIType DbgTy =
DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_typedef, Unit,
TyName, DefUnit, Line, 0, 0, 0, 0, Src);
TypeCache[QualType(Ty, 0).getAsOpaquePtr()] = DbgTy.getNode();
return DbgTy;
}
llvm::DIType CGDebugInfo::CreateType(const FunctionType *Ty,
@@ -424,10 +441,13 @@ llvm::DIType CGDebugInfo::CreateType(const FunctionType *Ty,
llvm::DIArray EltTypeArray =
DebugFactory.GetOrCreateArray(EltTys.data(), EltTys.size());
return DebugFactory.CreateCompositeType(llvm::dwarf::DW_TAG_subroutine_type,
Unit, "", llvm::DICompileUnit(),
0, 0, 0, 0, 0,
llvm::DIType(), EltTypeArray);
llvm::DIType DbgTy =
DebugFactory.CreateCompositeType(llvm::dwarf::DW_TAG_subroutine_type,
Unit, "", llvm::DICompileUnit(),
0, 0, 0, 0, 0,
llvm::DIType(), EltTypeArray);
TypeCache[QualType(Ty, 0).getAsOpaquePtr()] = DbgTy.getNode();
return DbgTy;
}
/// CreateType - get structure or union type.
@@ -713,10 +733,14 @@ llvm::DIType CGDebugInfo::CreateType(const EnumType *Ty,
Align = M->getContext().getTypeAlign(Ty);
}
return DebugFactory.CreateCompositeType(llvm::dwarf::DW_TAG_enumeration_type,
Unit, EnumName, DefUnit, Line,
Size, Align, 0, 0,
llvm::DIType(), EltArray);
llvm::DIType DbgTy =
DebugFactory.CreateCompositeType(llvm::dwarf::DW_TAG_enumeration_type,
Unit, EnumName, DefUnit, Line,
Size, Align, 0, 0,
llvm::DIType(), EltArray);
TypeCache[QualType(Ty, 0).getAsOpaquePtr()] = DbgTy.getNode();
return DbgTy;
}
llvm::DIType CGDebugInfo::CreateType(const TagType *Ty,
@@ -767,11 +791,15 @@ llvm::DIType CGDebugInfo::CreateType(const ArrayType *Ty,
llvm::DIArray SubscriptArray =
DebugFactory.GetOrCreateArray(Subscripts.data(), Subscripts.size());
return DebugFactory.CreateCompositeType(llvm::dwarf::DW_TAG_array_type,
Unit, "", llvm::DICompileUnit(),
0, Size, Align, 0, 0,
getOrCreateType(EltTy, Unit),
SubscriptArray);
llvm::DIType DbgTy =
DebugFactory.CreateCompositeType(llvm::dwarf::DW_TAG_array_type,
Unit, "", llvm::DICompileUnit(),
0, Size, Align, 0, 0,
getOrCreateType(EltTy, Unit),
SubscriptArray);
TypeCache[QualType(Ty, 0).getAsOpaquePtr()] = DbgTy.getNode();
return DbgTy;
}
@@ -793,7 +821,6 @@ llvm::DIType CGDebugInfo::getOrCreateType(QualType Ty,
// Otherwise create the type.
llvm::DIType Res = CreateTypeNode(Ty, Unit);
TypeCache.insert(std::make_pair(Ty.getAsOpaquePtr(), Res.getNode()));
return Res;
}