# RUN: llc -mtriple=x86_64-linux-gnu -mattr=+avx512f -global-isel -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=ALL
--- |
  define void @test_merge_v128() {
    ret void
  }

  define void @test_merge_v256() {
    ret void
  }

...
---
name:            test_merge_v128
# ALL-LABEL: name:  test_merge_v128
alignment:       4
legalized:       true
regBankSelected: true
# ALL:      registers:
# ALL-NEXT:   - { id: 0, class: vr128x, preferred-register: '' }
# ALL-NEXT:   - { id: 1, class: vr512, preferred-register: '' }
# ALL-NEXT:   - { id: 2, class: vr512, preferred-register: '' }
# ALL-NEXT:   - { id: 3, class: vr512, preferred-register: '' }
# ALL-NEXT:   - { id: 4, class: vr512, preferred-register: '' }
# ALL-NEXT:   - { id: 5, class: vr512, preferred-register: '' }
registers:
  - { id: 0, class: vecr }
  - { id: 1, class: vecr }
# ALL:          %0 = IMPLICIT_DEF
# ALL-NEXT:     undef %2.sub_xmm = COPY %0
# ALL-NEXT:     %3 = VINSERTF32x4Zrr %2, %0, 1
# ALL-NEXT:     %4 = VINSERTF32x4Zrr %3, %0, 2
# ALL-NEXT:     %5 = VINSERTF32x4Zrr %4, %0, 3
# ALL-NEXT:     %1 = COPY %5
# ALL-NEXT:     %zmm0 = COPY %1
# ALL-NEXT:     RET 0, implicit %zmm0
body:             |
  bb.1 (%ir-block.0):

    %0(<4 x s32>) = IMPLICIT_DEF
    %1(<16 x s32>) = G_MERGE_VALUES %0(<4 x s32>), %0(<4 x s32>), %0(<4 x s32>), %0(<4 x s32>)
    %zmm0 = COPY %1(<16 x s32>)
    RET 0, implicit %zmm0

...
---
name:            test_merge_v256
# ALL-LABEL: name:  test_merge_v256
alignment:       4
legalized:       true
regBankSelected: true
# ALL:      registers:
# ALL-NEXT:   - { id: 0, class: vr256x, preferred-register: '' }
# ALL-NEXT:   - { id: 1, class: vr512, preferred-register: '' }
# ALL-NEXT:   - { id: 2, class: vr512, preferred-register: '' }
# ALL-NEXT:   - { id: 3, class: vr512, preferred-register: '' }
registers:
  - { id: 0, class: vecr }
  - { id: 1, class: vecr }
# ALL:          %0 = IMPLICIT_DEF
# ALL-NEXT:     undef %2.sub_ymm = COPY %0
# ALL-NEXT:     %3 = VINSERTF64x4Zrr %2, %0, 1
# ALL-NEXT:     %1 = COPY %3
# ALL-NEXT:     %zmm0 = COPY %1
# ALL-NEXT:     RET 0, implicit %zmm0
body:             |
  bb.1 (%ir-block.0):

    %0(<8 x s32>) = IMPLICIT_DEF
    %1(<16 x s32>) = G_MERGE_VALUES %0(<8 x s32>), %0(<8 x s32>)
    %zmm0 = COPY %1(<16 x s32>)
    RET 0, implicit %zmm0

...