[llvm] [RISCV] Remove vmv.s.x and vmv.x.s lmul pseudo variants (PR #71501)

[Philip Reames via llvm-commits]

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@@ -339,9 +339,9 @@ define signext i16 @vreduce_add_nxv1i16(<vscale x 1 x i16> %v) {
 define signext i16 @vwreduce_add_nxv1i8(<vscale x 1 x i8> %v) {
 ; CHECK-LABEL: vwreduce_add_nxv1i8:
 ; CHECK:       # %bb.0:
-; CHECK-NEXT:    vsetvli a0, zero, e16, mf4, ta, ma
+; CHECK-NEXT:    vsetvli a0, zero, e16, m1, ta, ma
 ; CHECK-NEXT:    vmv.s.x v9, zero
-; CHECK-NEXT:    vsetvli zero, zero, e8, mf8, ta, ma
+; CHECK-NEXT:    vsetvli a0, zero, e8, mf8, ta, ma
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preames wrote:

Another vsetvli missing transform.  

https://github.com/llvm/llvm-project/pull/71501