Precommit test

Author: lukel97

llvm/test/CodeGen/RISCV/rvv/vl-opt.mir

@@ -0,0 +1,18 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
+# RUN: llc %s -o - -mtriple=riscv64 -mattr=+v -run-pass=riscv-vl-optimizer -verify-machineinstrs | FileCheck %s
+
+---
+name: vnsrl_wv_user
+body: |
+  bb.0:
+    liveins: $x1
+    ; CHECK-LABEL: name: vnsrl_wv_user
+    ; CHECK: liveins: $x1
+    ; CHECK-NEXT: {{  $}}
+    ; CHECK-NEXT: %vl:gprnox0 = COPY $x1
+    ; CHECK-NEXT: %x:vr = PseudoVADD_VV_MF4 $noreg, $noreg, $noreg, %vl, 4 /* e16 */, 0 /* tu, mu */
+    ; CHECK-NEXT: %y:vr = PseudoVNSRL_WV_MF4 $noreg, %x, $noreg, %vl, 4 /* e16 */, 0 /* tu, mu */
+    %vl:gprnox0 = COPY $x1
+    %x:vr = PseudoVADD_VV_MF4 $noreg, $noreg, $noreg, -1, 4 /* e16 */, 0 /* tu, mu */
+    %y:vr = PseudoVNSRL_WV_MF4 $noreg, %x, $noreg, %vl, 4 /* e16 */, 0 /* tu, mu */
+...