Update clang to r108243.

1 files changed, 26 insertions, 8 deletions

diff --git a/lib/CodeGen/CodeGenTypes.h b/lib/CodeGen/CodeGenTypes.h
index fc28c3a..c7f48e6 100644
--- a/lib/CodeGen/CodeGenTypes.h
+++ b/lib/CodeGen/CodeGenTypes.h
@@ -94,6 +94,12 @@ private:
   /// is available only for ConvertType(). CovertType() is preferred
   /// interface to convert type T into a llvm::Type.
   const llvm::Type *ConvertNewType(QualType T);
+  
+  /// HandleLateResolvedPointers - For top-level ConvertType calls, this handles
+  /// pointers that are referenced but have not been converted yet.  This is
+  /// used to handle cyclic structures properly.
+  void HandleLateResolvedPointers();
+
 public:
   CodeGenTypes(ASTContext &Ctx, llvm::Module &M, const llvm::TargetData &TD,
                const ABIInfo &Info);
@@ -106,22 +112,29 @@ public:
   llvm::LLVMContext &getLLVMContext() { return TheModule.getContext(); }
 
   /// ConvertType - Convert type T into a llvm::Type.
-  const llvm::Type *ConvertType(QualType T);
+  const llvm::Type *ConvertType(QualType T, bool IsRecursive = false);
   const llvm::Type *ConvertTypeRecursive(QualType T);
 
   /// ConvertTypeForMem - Convert type T into a llvm::Type.  This differs from
   /// ConvertType in that it is used to convert to the memory representation for
   /// a type.  For example, the scalar representation for _Bool is i1, but the
   /// memory representation is usually i8 or i32, depending on the target.
-  const llvm::Type *ConvertTypeForMem(QualType T);
-  const llvm::Type *ConvertTypeForMemRecursive(QualType T);
+  const llvm::Type *ConvertTypeForMem(QualType T, bool IsRecursive = false);
+  const llvm::Type *ConvertTypeForMemRecursive(QualType T) {
+    return ConvertTypeForMem(T, true);
+  }
 
   /// GetFunctionType - Get the LLVM function type for \arg Info.
   const llvm::FunctionType *GetFunctionType(const CGFunctionInfo &Info,
-                                            bool IsVariadic);
+                                            bool IsVariadic,
+                                            bool IsRecursive = false);
 
   const llvm::FunctionType *GetFunctionType(GlobalDecl GD);
 
+  /// VerifyFuncTypeComplete - Utility to check whether a function type can
+  /// be converted to an LLVM type (i.e. doesn't depend on an incomplete tag
+  /// type).
+  static const TagType *VerifyFuncTypeComplete(const Type* T);
 
   /// GetFunctionTypeForVTable - Get the LLVM function type for use in a vtable,
   /// given a CXXMethodDecl. If the method to has an incomplete return type, 
@@ -150,8 +163,11 @@ public:
     return getFunctionInfo(Ty->getResultType(), Args,
                            Ty->getExtInfo());
   }
-  const CGFunctionInfo &getFunctionInfo(CanQual<FunctionProtoType> Ty);
-  const CGFunctionInfo &getFunctionInfo(CanQual<FunctionNoProtoType> Ty);
+
+  const CGFunctionInfo &getFunctionInfo(CanQual<FunctionProtoType> Ty,
+                                        bool IsRecursive = false);
+  const CGFunctionInfo &getFunctionInfo(CanQual<FunctionNoProtoType> Ty,
+                                        bool IsRecursive = false);
 
   // getFunctionInfo - Get the function info for a member function.
   const CGFunctionInfo &getFunctionInfo(const CXXRecordDecl *RD,
@@ -172,7 +188,8 @@ public:
   /// \param ArgTys - must all actually be canonical as params
   const CGFunctionInfo &getFunctionInfo(CanQualType RetTy,
                                const llvm::SmallVectorImpl<CanQualType> &ArgTys,
-                                        const FunctionType::ExtInfo &Info);
+                                        const FunctionType::ExtInfo &Info,
+                                        bool IsRecursive = false);
 
   /// \brief Compute a new LLVM record layout object for the given record.
   CGRecordLayout *ComputeRecordLayout(const RecordDecl *D);
@@ -185,7 +202,8 @@ public:  // These are internal details of CGT that shouldn't be used externally.
   /// GetExpandedTypes - Expand the type \arg Ty into the LLVM
   /// argument types it would be passed as on the provided vector \arg
   /// ArgTys. See ABIArgInfo::Expand.
-  void GetExpandedTypes(QualType Ty, std::vector<const llvm::Type*> &ArgTys);
+  void GetExpandedTypes(QualType Ty, std::vector<const llvm::Type*> &ArgTys,
+                        bool IsRecursive);
   
   /// ContainsPointerToDataMember - Return whether the given type contains a
   /// pointer to a data member.