Refine vtable layout for virtual bases and keep better track of
primaries.  WIP.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78950 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenFunction.h b/lib/CodeGen/CodeGenFunction.h
index 1ea19c6..aa4bcce 100644
--- a/lib/CodeGen/CodeGenFunction.h
+++ b/lib/CodeGen/CodeGenFunction.h
@@ -363,6 +363,10 @@
                       const CXXRecordDecl *RD, llvm::Type *Ptr8Ty);
   void GenerateMethods(std::vector<llvm::Constant *> &methods,
                        const CXXRecordDecl *RD, llvm::Type *Ptr8Ty);
+void GenerateVtableForVBases(const CXXRecordDecl *RD,
+                             llvm::Constant *rtti,
+                             std::vector<llvm::Constant *> &methods,
+                    llvm::SmallSet<const CXXRecordDecl *, 32> &IndirectPrimary);
   void GenerateVtableForBase(const CXXRecordDecl *RD,
                              const CXXRecordDecl *Class,
                              llvm::Constant *rtti,