# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
# RUN: llc -mtriple=riscv64 -mattr=+v -run-pass=none %s -o - | FileCheck %s

# During the MachineVerifier, it assumes that used registers have been defined
# In this test case, while $v12_v13_v14_v15_v16 covers $v14_v15,
# $v14_v15 is not a sub-register of $v14m2 even though they share the same register.
# This corner case can be resolved by checking the register using RegUnit.

...
---
name:            func
tracksRegLiveness: true
tracksDebugUserValues: true
body:             |
  bb.0:
    liveins: $v0, $v8, $v9, $v10, $v11

    ; CHECK-LABEL: name: func
    ; CHECK: liveins: $v0, $v8, $v9, $v10, $v11
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: renamable $v16m2 = PseudoVMV_V_I_M2 undef renamable $v16m2, 0, -1 /* vl=VLMAX */, 3 /* e8 */, 0 /* tu, mu */, implicit $vl, implicit $vtype
    ; CHECK-NEXT: $v20m2 = VMV2R_V $v14m2, implicit $v12_v13_v14_v15_v16, implicit $vtype
    renamable $v16m2 = PseudoVMV_V_I_M2 undef renamable $v16m2, 0, -1, 3 /* e8 */, 0 /* tu, mu */, implicit $vl, implicit $vtype
    $v20m2 = VMV2R_V $v14m2, implicit $v12_v13_v14_v15_v16, implicit $vtype

...