[RISCV] Fold funct7 into class for XAndesVBFHCvt instructions. NFC.

Author: tclin914

llvm/lib/Target/RISCV/RISCVInstrInfoXAndes.td

@@ -372,13 +372,13 @@ class NDSRVInstVD4DOT<bits<6> funct6, string opcodestr>
   let RVVConstraint = VMConstraint;
 }
 
-class NDSRVInstVBFHCvt<bits<7> funct7, bits<5> vs1, string opcodestr>
+class NDSRVInstVBFHCvt<bits<5> vs1, string opcodestr>
     : RVInst<(outs VR:$vd), (ins VR:$vs2, VMaskOp:$vm),
              opcodestr, "$vd, $vs2", [], InstFormatR> {
   bits<5> vs2;
   bits<5> vd;
 
-  let Inst{31-25} = funct7;
+  let Inst{31-25} = 0b0000000;
   let Inst{24-20} = vs2;
   let Inst{19-15} = vs1;
   let Inst{14-12} = 0b100;
@@ -537,9 +537,9 @@ def NDS_SDGP  : NDSRVInstSDGP<0b111, "nds.sdgp">;
 let Predicates = [HasVendorXAndesVBFHCvt], Constraints = "@earlyclobber $vd",
     mayRaiseFPException = true in {
 let RVVConstraint = VS2Constraint, DestEEW = EEWSEWx2 in
-def NDS_VFWCVT_S_BF16 : NDSRVInstVBFHCvt<0b0000000, 0b00000, "nds.vfwcvt.s.bf16">;
+def NDS_VFWCVT_S_BF16 : NDSRVInstVBFHCvt<0b00000, "nds.vfwcvt.s.bf16">;
 let Uses = [FRM, VL, VTYPE] in
-def NDS_VFNCVT_BF16_S : NDSRVInstVBFHCvt<0b0000000, 0b00001, "nds.vfncvt.bf16.s">;
+def NDS_VFNCVT_BF16_S : NDSRVInstVBFHCvt<0b00001, "nds.vfncvt.bf16.s">;
 }
 
 //===----------------------------------------------------------------------===//