Update test outside of rvv directory

Author: lukel97

llvm/test/CodeGen/RISCV/double_reduct.ll

@@ -113,7 +113,7 @@ define i16 @add_ext_v32i16(<32 x i8> %a, <16 x i8> %b) {
 ; CHECK-NEXT:    li a0, 32
 ; CHECK-NEXT:    vsetvli zero, a0, e8, m2, ta, ma
 ; CHECK-NEXT:    vwredsumu.vs v8, v8, v10
-; CHECK-NEXT:    vsetivli zero, 1, e16, m1, ta, ma
+; CHECK-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
 ; CHECK-NEXT:    vmv.x.s a0, v8
 ; CHECK-NEXT:    ret
   %ae = zext <32 x i8> %a to <32 x i16>