diff --git a/llvm/lib/Target/RISCV/RISCVRegisterInfo.td b/llvm/lib/Target/RISCV/RISCVRegisterInfo.td
--- a/llvm/lib/Target/RISCV/RISCVRegisterInfo.td
+++ b/llvm/lib/Target/RISCV/RISCVRegisterInfo.td
@@ -547,6 +547,7 @@
                                           [Reg, RegP1],
                                           Reg.AltNames> {
       let SubRegIndices = [sub_32, sub_32_hi];
+      let CoveredBySubRegs = 1;
     }
   }
 }