diff --git a/llvm/include/llvm/IR/DerivedTypes.h b/llvm/include/llvm/IR/DerivedTypes.h
--- a/llvm/include/llvm/IR/DerivedTypes.h
+++ b/llvm/include/llvm/IR/DerivedTypes.h
@@ -518,10 +518,6 @@
     return EC;
   }
 
-  /// Returns whether or not this is a scalable vector (meaning the total
-  /// element count is a multiple of the minimum).
-  bool isScalable() const { return EC.Scalable; }
-
   /// Return the minimum number of bits in the Vector type.
   /// Returns zero when the vector is a vector of pointers.
   unsigned getBitWidth() const {