diff --git a/llvm/include/llvm/CodeGen/ISDOpcodes.h b/llvm/include/llvm/CodeGen/ISDOpcodes.h
--- a/llvm/include/llvm/CodeGen/ISDOpcodes.h
+++ b/llvm/include/llvm/CodeGen/ISDOpcodes.h
@@ -448,11 +448,11 @@
   FCANONICALIZE,
 
   /// BUILD_VECTOR(ELT0, ELT1, ELT2, ELT3,...) - Return a fixed-width vector
-  /// with the specified, possibly variable, elements.  The number of elements
-  /// is required to be a power of two. The types of the operands must all be
-  /// the same and must match the vector element type, except that integer types
-  /// are allowed to be larger than the element type, in which case the operands
-  /// are implicitly truncated.
+  /// with the specified, possibly variable, elements. The types of the
+  /// operands must all be the same. The types of the operands must match the
+  /// vector element type, except that integer types are allowed to be larger
+  /// than the element type, in which case the operands are implicitly
+  /// truncated.
   BUILD_VECTOR,
 
   /// INSERT_VECTOR_ELT(VECTOR, VAL, IDX) - Returns VECTOR with the element