[RISCV] Correct operand names for vmv.s.x and vfmv.s.f pseudos. NFC

Author: topperc

llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td

@@ -6733,9 +6733,9 @@ let mayLoad = 0, mayStore = 0, hasSideEffects = 0 in {
     Sched<[WriteVMovXS, ReadVMovXS]>,
     RISCVVPseudo;
   let HasVLOp = 1, HasSEWOp = 1, BaseInstr = VMV_S_X, isReMaterializable = 1,
-      Constraints = "$rd = $rs1" in
+      Constraints = "$rd = $passthru" in
   def PseudoVMV_S_X: Pseudo<(outs VR:$rd),
-                            (ins VR:$rs1, GPR:$rs2, AVL:$vl, sew:$sew),
+                            (ins VR:$passthru, GPR:$rs1, AVL:$vl, sew:$sew),
                             []>,
     Sched<[WriteVMovSX, ReadVMovSX_V, ReadVMovSX_X]>,
     RISCVVPseudo;
@@ -6756,10 +6756,10 @@ let mayLoad = 0, mayStore = 0, hasSideEffects = 0 in {
       Sched<[WriteVMovFS, ReadVMovFS]>,
       RISCVVPseudo;
     let HasVLOp = 1, HasSEWOp = 1, BaseInstr = VFMV_S_F, isReMaterializable = 1,
-        Constraints = "$rd = $rs1" in
+        Constraints = "$rd = $passthru" in
     def "PseudoVFMV_S_" # f.FX :
       Pseudo<(outs VR:$rd),
-             (ins VR:$rs1, f.fprclass:$rs2, AVL:$vl, sew:$sew),
+             (ins VR:$passthru, f.fprclass:$rs1, AVL:$vl, sew:$sew),
              []>,
       Sched<[WriteVMovSF, ReadVMovSF_V, ReadVMovSF_F]>,
       RISCVVPseudo;