Make codegen able to handle values of empty types. This is one way

to fix PR9900. I will keep it open until sable is able to comment on it.

llvm-svn: 131294

1 files changed, 3 insertions, 0 deletions

diff --git a/llvm/include/llvm/Type.h b/llvm/include/llvm/Type.h
index 0939d67265b..3bda91d6638 100644
--- a/llvm/include/llvm/Type.h
+++ b/llvm/include/llvm/Type.h
@@ -273,6 +273,9 @@ public:
   /// @brief Determine if this type could be losslessly bitcast to Ty
   bool canLosslesslyBitCastTo(const Type *Ty) const;
 
+  /// isEmptyTy - Return true if this type is empty, that is, it has no
+  /// elements or all its elements are empty.
+  bool isEmptyTy() const;
 
   /// Here are some useful little methods to query what type derived types are
   /// Note that all other types can just compare to see if this == Type::xxxTy;