Handle CK_BaseToDerivedMemberPointer for member function pointers. Fixes PR5091.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83041 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/CodeGen/CodeGenFunction.h b/lib/CodeGen/CodeGenFunction.h
index 73cac24431..faad45ad96 100644
--- a/lib/CodeGen/CodeGenFunction.h
+++ b/lib/CodeGen/CodeGenFunction.h
@@ -589,6 +589,11 @@ public:
                                         const CXXRecordDecl *BaseClassDecl,
                                         bool NullCheckValue);
 
+  /// GetCXXBaseClassOffset - Returns the offset from a derived class to its
+  /// base class. Returns null if the offset is 0.
+  llvm::Constant *GetCXXBaseClassOffset(const CXXRecordDecl *ClassDecl,
+                                        const CXXRecordDecl *BaseClassDecl);
+  
   void EmitClassAggrMemberwiseCopy(llvm::Value *DestValue,
                                    llvm::Value *SrcValue,
                                    const ArrayType *Array,