[RISCV] Correct the OperandType for simm8_unsigned and simm10_unsigned. (#154667)

Author: topperc

llvm/lib/Target/RISCV/MCTargetDesc/RISCVBaseInfo.h

@@ -347,8 +347,10 @@ enum OperandType : unsigned {
   OPERAND_SIMM6,
   OPERAND_SIMM6_NONZERO,
   OPERAND_SIMM8,
+  OPERAND_SIMM8_UNSIGNED,
   OPERAND_SIMM10,
   OPERAND_SIMM10_LSB0000_NONZERO,
+  OPERAND_SIMM10_UNSIGNED,
   OPERAND_SIMM11,
   OPERAND_SIMM12,
   OPERAND_SIMM12_LSB00000,

llvm/lib/Target/RISCV/RISCVInstrInfoP.td

@@ -30,7 +30,7 @@ def simm8_unsigned : RISCVOp {
   let ParserMatchClass = SImm8UnsignedAsmOperand;
   let EncoderMethod = "getImmOpValue";
   let DecoderMethod = "decodeSImmOperand<8>";
-  let OperandType = "OPERAND_SIMM10";
+  let OperandType = "OPERAND_SIMM8_UNSIGNED";
   let MCOperandPredicate = [{
     int64_t Imm;
     if (!MCOp.evaluateAsConstantImm(Imm))
@@ -49,7 +49,7 @@ def simm10_unsigned : RISCVOp {
   let ParserMatchClass = SImm10UnsignedAsmOperand;
   let EncoderMethod = "getImmOpValue";
   let DecoderMethod = "decodeSImmOperand<10>";
-  let OperandType = "OPERAND_SIMM10";
+  let OperandType = "OPERAND_SIMM10_UNSIGNED";
   let MCOperandPredicate = [{
     int64_t Imm;
     if (!MCOp.evaluateAsConstantImm(Imm))