diff --git a/llvm/lib/Target/RISCV/MCTargetDesc/RISCVBaseInfo.h b/llvm/lib/Target/RISCV/MCTargetDesc/RISCVBaseInfo.h
--- a/llvm/lib/Target/RISCV/MCTargetDesc/RISCVBaseInfo.h
+++ b/llvm/lib/Target/RISCV/MCTargetDesc/RISCVBaseInfo.h
@@ -228,6 +228,7 @@
   OPERAND_SIMM5_PLUS1,
   OPERAND_SIMM6,
   OPERAND_SIMM6_NONZERO,
+  OPERAND_SIMM10_LSB0000_NONZERO,
   OPERAND_SIMM12,
   OPERAND_SIMM12_LSB00000,
   OPERAND_UIMM20,
diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp b/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
--- a/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
@@ -1165,6 +1165,9 @@
         CASE_OPERAND_UIMM(12)
         CASE_OPERAND_UIMM(20)
           // clang-format on
+        case RISCVOp::OPERAND_SIMM10_LSB0000_NONZERO:
+          Ok = isShiftedInt<6, 4>(Imm) && (Imm != 0);
+          break;
         case RISCVOp::OPERAND_ZERO:
           Ok = Imm == 0;
           break;
diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfoC.td b/llvm/lib/Target/RISCV/RISCVInstrInfoC.td
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoC.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoC.td
@@ -204,6 +204,8 @@
   let ParserMatchClass = SImmAsmOperand<10, "Lsb0000NonZero">;
   let EncoderMethod = "getImmOpValue";
   let DecoderMethod = "decodeSImmNonZeroOperand<10>";
+  let OperandType = "OPERAND_SIMM10_LSB0000_NONZERO";
+  let OperandNamespace = "RISCVOp";
   let MCOperandPredicate = [{
     int64_t Imm;
     if (!MCOp.evaluateAsConstantImm(Imm))