Index: include/llvm/CodeGen/GlobalISel/RegisterBankInfo.h
===================================================================
--- include/llvm/CodeGen/GlobalISel/RegisterBankInfo.h
+++ include/llvm/CodeGen/GlobalISel/RegisterBankInfo.h
@@ -104,7 +104,7 @@
   /// \code
   /// PartialMapping[] = {
   /// /*32-bit add*/ {0, 32, GPR},
-  /// /*2x32-bit add*/ {0, 32, GPR}, {0, 32, GPR}, // <-- Same entry 3x
+  /// /*2x32-bit add*/ {0, 32, GPR}, {32, 32, GPR}, // <-- Same entry 2x
   /// /*<2x32-bit> vadd {0, 64, VPR}
   /// }; // PartialMapping duplicated.
   ///