# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=tahiti -O0 -run-pass=legalizer -o - %s | FileCheck -check-prefix=GFX6 %s
# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=fiji -O0 -run-pass=legalizer -o - %s | FileCheck -check-prefix=GFX8 %s
# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx900 -O0 -run-pass=legalizer -o - %s | FileCheck -check-prefix=GFX9 %s
# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx1010 -O0 -run-pass=legalizer -o - %s | FileCheck -check-prefix=GFX9 %s

---
name: test_sub_s32
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1

    ; GFX6-LABEL: name: test_sub_s32
    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX6: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[COPY]], [[COPY1]]
    ; GFX6: $vgpr0 = COPY [[SUB]](s32)
    ; GFX8-LABEL: name: test_sub_s32
    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX8: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[COPY]], [[COPY1]]
    ; GFX8: $vgpr0 = COPY [[SUB]](s32)
    ; GFX9-LABEL: name: test_sub_s32
    ; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX9: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[COPY]], [[COPY1]]
    ; GFX9: $vgpr0 = COPY [[SUB]](s32)
    %0:_(s32) = COPY $vgpr0
    %1:_(s32) = COPY $vgpr1
    %2:_(s32) = G_SUB %0, %1
    $vgpr0 = COPY %2
...

---
name: test_sub_v2s32
body: |
  bb.0:
    liveins: $vgpr0_vgpr1, $vgpr2_vgpr3

    ; GFX6-LABEL: name: test_sub_v2s32
    ; GFX6: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; GFX6: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr2_vgpr3
    ; GFX6: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; GFX6: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; GFX6: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[UV]], [[UV2]]
    ; GFX6: [[SUB1:%[0-9]+]]:_(s32) = G_SUB [[UV1]], [[UV3]]
    ; GFX6: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[SUB]](s32), [[SUB1]](s32)
    ; GFX6: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
    ; GFX8-LABEL: name: test_sub_v2s32
    ; GFX8: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; GFX8: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr2_vgpr3
    ; GFX8: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; GFX8: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; GFX8: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[UV]], [[UV2]]
    ; GFX8: [[SUB1:%[0-9]+]]:_(s32) = G_SUB [[UV1]], [[UV3]]
    ; GFX8: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[SUB]](s32), [[SUB1]](s32)
    ; GFX8: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
    ; GFX9-LABEL: name: test_sub_v2s32
    ; GFX9: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; GFX9: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr2_vgpr3
    ; GFX9: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; GFX9: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; GFX9: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[UV]], [[UV2]]
    ; GFX9: [[SUB1:%[0-9]+]]:_(s32) = G_SUB [[UV1]], [[UV3]]
    ; GFX9: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[SUB]](s32), [[SUB1]](s32)
    ; GFX9: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr2_vgpr3
    %2:_(<2 x s32>) = G_SUB %0, %1
    $vgpr0_vgpr1 = COPY %2
...

---
name: test_sub_s16
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1

    ; GFX6-LABEL: name: test_sub_s16
    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX6: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
    ; GFX6: [[COPY3:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
    ; GFX6: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[COPY2]], [[COPY3]]
    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
    ; GFX6: [[COPY4:%[0-9]+]]:_(s32) = COPY [[SUB]](s32)
    ; GFX6: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C]]
    ; GFX6: $vgpr0 = COPY [[AND]](s32)
    ; GFX8-LABEL: name: test_sub_s16
    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX8: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
    ; GFX8: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[COPY1]](s32)
    ; GFX8: [[SUB:%[0-9]+]]:_(s16) = G_SUB [[TRUNC]], [[TRUNC1]]
    ; GFX8: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[SUB]](s16)
    ; GFX8: $vgpr0 = COPY [[ZEXT]](s32)
    ; GFX9-LABEL: name: test_sub_s16
    ; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX9: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
    ; GFX9: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[COPY1]](s32)
    ; GFX9: [[SUB:%[0-9]+]]:_(s16) = G_SUB [[TRUNC]], [[TRUNC1]]
    ; GFX9: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[SUB]](s16)
    ; GFX9: $vgpr0 = COPY [[ZEXT]](s32)
    %0:_(s32) = COPY $vgpr0
    %1:_(s32) = COPY $vgpr1
    %2:_(s16) = G_TRUNC %0
    %3:_(s16) = G_TRUNC %1
    %4:_(s16) = G_SUB %2, %3
    %5:_(s32) = G_ZEXT %4
    $vgpr0 = COPY %5
...

---
name: test_sub_v2s16
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1

    ; GFX6-LABEL: name: test_sub_v2s16
    ; GFX6: [[COPY:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr0
    ; GFX6: [[COPY1:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr1
    ; GFX6: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[COPY]](<2 x s16>)
    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; GFX6: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
    ; GFX6: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[COPY1]](<2 x s16>)
    ; GFX6: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
    ; GFX6: [[COPY2:%[0-9]+]]:_(s32) = COPY [[BITCAST]](s32)
    ; GFX6: [[COPY3:%[0-9]+]]:_(s32) = COPY [[BITCAST1]](s32)
    ; GFX6: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[COPY2]], [[COPY3]]
    ; GFX6: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
    ; GFX6: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
    ; GFX6: [[SUB1:%[0-9]+]]:_(s32) = G_SUB [[COPY4]], [[COPY5]]
    ; GFX6: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
    ; GFX6: [[COPY6:%[0-9]+]]:_(s32) = COPY [[SUB]](s32)
    ; GFX6: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY6]], [[C1]]
    ; GFX6: [[COPY7:%[0-9]+]]:_(s32) = COPY [[SUB1]](s32)
    ; GFX6: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY7]], [[C1]]
    ; GFX6: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND1]], [[C]](s32)
    ; GFX6: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND]], [[SHL]]
    ; GFX6: [[BITCAST2:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR]](s32)
    ; GFX6: $vgpr0 = COPY [[BITCAST2]](<2 x s16>)
    ; GFX8-LABEL: name: test_sub_v2s16
    ; GFX8: [[COPY:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr0
    ; GFX8: [[COPY1:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr1
    ; GFX8: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[COPY]](<2 x s16>)
    ; GFX8: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST]](s32)
    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; GFX8: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
    ; GFX8: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
    ; GFX8: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[COPY1]](<2 x s16>)
    ; GFX8: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST1]](s32)
    ; GFX8: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
    ; GFX8: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR1]](s32)
    ; GFX8: [[SUB:%[0-9]+]]:_(s16) = G_SUB [[TRUNC]], [[TRUNC2]]
    ; GFX8: [[SUB1:%[0-9]+]]:_(s16) = G_SUB [[TRUNC1]], [[TRUNC3]]
    ; GFX8: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[SUB]](s16)
    ; GFX8: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[SUB1]](s16)
    ; GFX8: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[ZEXT1]], [[C]](s32)
    ; GFX8: [[OR:%[0-9]+]]:_(s32) = G_OR [[ZEXT]], [[SHL]]
    ; GFX8: [[BITCAST2:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR]](s32)
    ; GFX8: $vgpr0 = COPY [[BITCAST2]](<2 x s16>)
    ; GFX9-LABEL: name: test_sub_v2s16
    ; GFX9: [[COPY:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr0
    ; GFX9: [[COPY1:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr1
    ; GFX9: [[SUB:%[0-9]+]]:_(<2 x s16>) = G_SUB [[COPY]], [[COPY1]]
    ; GFX9: $vgpr0 = COPY [[SUB]](<2 x s16>)
    %0:_(<2 x s16>) = COPY $vgpr0
    %1:_(<2 x s16>) = COPY $vgpr1
    %2:_(<2 x s16>) = G_SUB %0, %1
    $vgpr0 = COPY %2
...

---
name: test_sub_v3s16
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5
    ; GFX6-LABEL: name: test_sub_v3s16
    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX6: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
    ; GFX6: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
    ; GFX6: [[COPY4:%[0-9]+]]:_(s32) = COPY $vgpr4
    ; GFX6: [[COPY5:%[0-9]+]]:_(s32) = COPY $vgpr5
    ; GFX6: [[COPY6:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
    ; GFX6: [[COPY7:%[0-9]+]]:_(s32) = COPY [[COPY3]](s32)
    ; GFX6: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[COPY6]], [[COPY7]]
    ; GFX6: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[SUB]](s32)
    ; GFX6: [[COPY8:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
    ; GFX6: [[COPY9:%[0-9]+]]:_(s32) = COPY [[COPY4]](s32)
    ; GFX6: [[SUB1:%[0-9]+]]:_(s32) = G_SUB [[COPY8]], [[COPY9]]
    ; GFX6: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[SUB1]](s32)
    ; GFX6: [[COPY10:%[0-9]+]]:_(s32) = COPY [[COPY2]](s32)
    ; GFX6: [[COPY11:%[0-9]+]]:_(s32) = COPY [[COPY5]](s32)
    ; GFX6: [[SUB2:%[0-9]+]]:_(s32) = G_SUB [[COPY10]], [[COPY11]]
    ; GFX6: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[SUB2]](s32)
    ; GFX6: S_ENDPGM 0, implicit [[TRUNC]](s16), implicit [[TRUNC1]](s16), implicit [[TRUNC2]](s16)
    ; GFX8-LABEL: name: test_sub_v3s16
    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX8: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
    ; GFX8: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
    ; GFX8: [[COPY4:%[0-9]+]]:_(s32) = COPY $vgpr4
    ; GFX8: [[COPY5:%[0-9]+]]:_(s32) = COPY $vgpr5
    ; GFX8: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
    ; GFX8: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[COPY1]](s32)
    ; GFX8: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[COPY2]](s32)
    ; GFX8: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[COPY3]](s32)
    ; GFX8: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[COPY4]](s32)
    ; GFX8: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[COPY5]](s32)
    ; GFX8: [[SUB:%[0-9]+]]:_(s16) = G_SUB [[TRUNC]], [[TRUNC3]]
    ; GFX8: [[SUB1:%[0-9]+]]:_(s16) = G_SUB [[TRUNC1]], [[TRUNC4]]
    ; GFX8: [[SUB2:%[0-9]+]]:_(s16) = G_SUB [[TRUNC2]], [[TRUNC5]]
    ; GFX8: S_ENDPGM 0, implicit [[SUB]](s16), implicit [[SUB1]](s16), implicit [[SUB2]](s16)
    ; GFX9-LABEL: name: test_sub_v3s16
    ; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
    ; GFX9: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
    ; GFX9: [[COPY4:%[0-9]+]]:_(s32) = COPY $vgpr4
    ; GFX9: [[COPY5:%[0-9]+]]:_(s32) = COPY $vgpr5
    ; GFX9: [[COPY6:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
    ; GFX9: [[COPY7:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
    ; GFX9: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY6]](s32), [[COPY7]](s32)
    ; GFX9: [[COPY8:%[0-9]+]]:_(s32) = COPY [[COPY2]](s32)
    ; GFX9: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
    ; GFX9: [[COPY9:%[0-9]+]]:_(s32) = COPY [[DEF]](s32)
    ; GFX9: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY8]](s32), [[COPY9]](s32)
    ; GFX9: [[DEF1:%[0-9]+]]:_(<2 x s16>) = G_IMPLICIT_DEF
    ; GFX9: [[COPY10:%[0-9]+]]:_(s32) = COPY [[COPY3]](s32)
    ; GFX9: [[COPY11:%[0-9]+]]:_(s32) = COPY [[COPY4]](s32)
    ; GFX9: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY10]](s32), [[COPY11]](s32)
    ; GFX9: [[COPY12:%[0-9]+]]:_(s32) = COPY [[COPY5]](s32)
    ; GFX9: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY12]](s32), [[DEF]](s32)
    ; GFX9: [[SUB:%[0-9]+]]:_(<2 x s16>) = G_SUB [[BUILD_VECTOR_TRUNC]], [[BUILD_VECTOR_TRUNC2]]
    ; GFX9: [[SUB1:%[0-9]+]]:_(<2 x s16>) = G_SUB [[BUILD_VECTOR_TRUNC1]], [[BUILD_VECTOR_TRUNC3]]
    ; GFX9: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[SUB]](<2 x s16>)
    ; GFX9: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST]](s32)
    ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; GFX9: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
    ; GFX9: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
    ; GFX9: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[SUB1]](<2 x s16>)
    ; GFX9: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST1]](s32)
    ; GFX9: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
    ; GFX9: S_ENDPGM 0, implicit [[TRUNC]](s16), implicit [[TRUNC1]](s16), implicit [[TRUNC2]](s16)
    %0:_(s32) = COPY $vgpr0
    %1:_(s32) = COPY $vgpr1
    %2:_(s32) = COPY $vgpr2
    %3:_(s32) = COPY $vgpr3
    %4:_(s32) = COPY $vgpr4
    %5:_(s32) = COPY $vgpr5
    %6:_(s16) = G_TRUNC %0
    %7:_(s16) = G_TRUNC %1
    %8:_(s16) = G_TRUNC %2
    %9:_(s16) = G_TRUNC %3
    %10:_(s16) = G_TRUNC %4
    %11:_(s16) = G_TRUNC %5
    %12:_(<3 x s16>) = G_BUILD_VECTOR %6, %7, %8
    %13:_(<3 x s16>) = G_BUILD_VECTOR %9, %10, %11
    %14:_(<3 x s16>) = G_SUB %12, %13
    %15:_(s16), %16:_(s16), %17:_(s16) = G_UNMERGE_VALUES %14
    S_ENDPGM 0, implicit %15, implicit %16, implicit %17
...

---
name: test_sub_v4s16
body: |
  bb.0:
    liveins: $vgpr0_vgpr1, $vgpr2_vgpr3

    ; GFX6-LABEL: name: test_sub_v4s16
    ; GFX6: [[COPY:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr0_vgpr1
    ; GFX6: [[COPY1:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr2_vgpr3
    ; GFX6: [[UV:%[0-9]+]]:_(<2 x s16>), [[UV1:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY]](<4 x s16>)
    ; GFX6: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[UV]](<2 x s16>)
    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; GFX6: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
    ; GFX6: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[UV1]](<2 x s16>)
    ; GFX6: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
    ; GFX6: [[UV2:%[0-9]+]]:_(<2 x s16>), [[UV3:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY1]](<4 x s16>)
    ; GFX6: [[BITCAST2:%[0-9]+]]:_(s32) = G_BITCAST [[UV2]](<2 x s16>)
    ; GFX6: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST2]], [[C]](s32)
    ; GFX6: [[BITCAST3:%[0-9]+]]:_(s32) = G_BITCAST [[UV3]](<2 x s16>)
    ; GFX6: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST3]], [[C]](s32)
    ; GFX6: [[COPY2:%[0-9]+]]:_(s32) = COPY [[BITCAST]](s32)
    ; GFX6: [[COPY3:%[0-9]+]]:_(s32) = COPY [[BITCAST2]](s32)
    ; GFX6: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[COPY2]], [[COPY3]]
    ; GFX6: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
    ; GFX6: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
    ; GFX6: [[SUB1:%[0-9]+]]:_(s32) = G_SUB [[COPY4]], [[COPY5]]
    ; GFX6: [[COPY6:%[0-9]+]]:_(s32) = COPY [[BITCAST1]](s32)
    ; GFX6: [[COPY7:%[0-9]+]]:_(s32) = COPY [[BITCAST3]](s32)
    ; GFX6: [[SUB2:%[0-9]+]]:_(s32) = G_SUB [[COPY6]], [[COPY7]]
    ; GFX6: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
    ; GFX6: [[COPY9:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
    ; GFX6: [[SUB3:%[0-9]+]]:_(s32) = G_SUB [[COPY8]], [[COPY9]]
    ; GFX6: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
    ; GFX6: [[COPY10:%[0-9]+]]:_(s32) = COPY [[SUB]](s32)
    ; GFX6: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY10]], [[C1]]
    ; GFX6: [[COPY11:%[0-9]+]]:_(s32) = COPY [[SUB1]](s32)
    ; GFX6: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY11]], [[C1]]
    ; GFX6: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND1]], [[C]](s32)
    ; GFX6: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND]], [[SHL]]
    ; GFX6: [[BITCAST4:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR]](s32)
    ; GFX6: [[COPY12:%[0-9]+]]:_(s32) = COPY [[SUB2]](s32)
    ; GFX6: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY12]], [[C1]]
    ; GFX6: [[COPY13:%[0-9]+]]:_(s32) = COPY [[SUB3]](s32)
    ; GFX6: [[AND3:%[0-9]+]]:_(s32) = G_AND [[COPY13]], [[C1]]
    ; GFX6: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[AND3]], [[C]](s32)
    ; GFX6: [[OR1:%[0-9]+]]:_(s32) = G_OR [[AND2]], [[SHL1]]
    ; GFX6: [[BITCAST5:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR1]](s32)
    ; GFX6: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BITCAST4]](<2 x s16>), [[BITCAST5]](<2 x s16>)
    ; GFX6: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<4 x s16>)
    ; GFX8-LABEL: name: test_sub_v4s16
    ; GFX8: [[COPY:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr0_vgpr1
    ; GFX8: [[COPY1:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr2_vgpr3
    ; GFX8: [[UV:%[0-9]+]]:_(<2 x s16>), [[UV1:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY]](<4 x s16>)
    ; GFX8: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[UV]](<2 x s16>)
    ; GFX8: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST]](s32)
    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; GFX8: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
    ; GFX8: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
    ; GFX8: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[UV1]](<2 x s16>)
    ; GFX8: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST1]](s32)
    ; GFX8: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
    ; GFX8: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR1]](s32)
    ; GFX8: [[UV2:%[0-9]+]]:_(<2 x s16>), [[UV3:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY1]](<4 x s16>)
    ; GFX8: [[BITCAST2:%[0-9]+]]:_(s32) = G_BITCAST [[UV2]](<2 x s16>)
    ; GFX8: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST2]](s32)
    ; GFX8: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST2]], [[C]](s32)
    ; GFX8: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR2]](s32)
    ; GFX8: [[BITCAST3:%[0-9]+]]:_(s32) = G_BITCAST [[UV3]](<2 x s16>)
    ; GFX8: [[TRUNC6:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST3]](s32)
    ; GFX8: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST3]], [[C]](s32)
    ; GFX8: [[TRUNC7:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR3]](s32)
    ; GFX8: [[SUB:%[0-9]+]]:_(s16) = G_SUB [[TRUNC]], [[TRUNC4]]
    ; GFX8: [[SUB1:%[0-9]+]]:_(s16) = G_SUB [[TRUNC1]], [[TRUNC5]]
    ; GFX8: [[SUB2:%[0-9]+]]:_(s16) = G_SUB [[TRUNC2]], [[TRUNC6]]
    ; GFX8: [[SUB3:%[0-9]+]]:_(s16) = G_SUB [[TRUNC3]], [[TRUNC7]]
    ; GFX8: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[SUB]](s16)
    ; GFX8: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[SUB1]](s16)
    ; GFX8: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[ZEXT1]], [[C]](s32)
    ; GFX8: [[OR:%[0-9]+]]:_(s32) = G_OR [[ZEXT]], [[SHL]]
    ; GFX8: [[BITCAST4:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR]](s32)
    ; GFX8: [[ZEXT2:%[0-9]+]]:_(s32) = G_ZEXT [[SUB2]](s16)
    ; GFX8: [[ZEXT3:%[0-9]+]]:_(s32) = G_ZEXT [[SUB3]](s16)
    ; GFX8: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[ZEXT3]], [[C]](s32)
    ; GFX8: [[OR1:%[0-9]+]]:_(s32) = G_OR [[ZEXT2]], [[SHL1]]
    ; GFX8: [[BITCAST5:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR1]](s32)
    ; GFX8: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BITCAST4]](<2 x s16>), [[BITCAST5]](<2 x s16>)
    ; GFX8: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<4 x s16>)
    ; GFX9-LABEL: name: test_sub_v4s16
    ; GFX9: [[COPY:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr0_vgpr1
    ; GFX9: [[COPY1:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr2_vgpr3
    ; GFX9: [[UV:%[0-9]+]]:_(<2 x s16>), [[UV1:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY]](<4 x s16>)
    ; GFX9: [[UV2:%[0-9]+]]:_(<2 x s16>), [[UV3:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY1]](<4 x s16>)
    ; GFX9: [[SUB:%[0-9]+]]:_(<2 x s16>) = G_SUB [[UV]], [[UV2]]
    ; GFX9: [[SUB1:%[0-9]+]]:_(<2 x s16>) = G_SUB [[UV1]], [[UV3]]
    ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[SUB]](<2 x s16>), [[SUB1]](<2 x s16>)
    ; GFX9: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<4 x s16>)
    %0:_(<4 x s16>) = COPY $vgpr0_vgpr1
    %1:_(<4 x s16>) = COPY $vgpr2_vgpr3
    %2:_(<4 x s16>) = G_SUB %0, %1
    $vgpr0_vgpr1 = COPY %2
...

---
name: test_sub_s64
body: |
  bb.0:
    liveins: $vgpr0_vgpr1, $vgpr2_vgpr3

    ; GFX6-LABEL: name: test_sub_s64
    ; GFX6: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
    ; GFX6: [[COPY1:%[0-9]+]]:_(s64) = COPY $vgpr2_vgpr3
    ; GFX6: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
    ; GFX6: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](s64)
    ; GFX6: [[USUBO:%[0-9]+]]:_(s32), [[USUBO1:%[0-9]+]]:_(s1) = G_USUBO [[UV]], [[UV2]]
    ; GFX6: [[USUBE:%[0-9]+]]:_(s32), [[USUBE1:%[0-9]+]]:_(s1) = G_USUBE [[UV1]], [[UV3]], [[USUBO1]]
    ; GFX6: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[USUBO]](s32), [[USUBE]](s32)
    ; GFX6: $vgpr0_vgpr1 = COPY [[MV]](s64)
    ; GFX8-LABEL: name: test_sub_s64
    ; GFX8: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
    ; GFX8: [[COPY1:%[0-9]+]]:_(s64) = COPY $vgpr2_vgpr3
    ; GFX8: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
    ; GFX8: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](s64)
    ; GFX8: [[USUBO:%[0-9]+]]:_(s32), [[USUBO1:%[0-9]+]]:_(s1) = G_USUBO [[UV]], [[UV2]]
    ; GFX8: [[USUBE:%[0-9]+]]:_(s32), [[USUBE1:%[0-9]+]]:_(s1) = G_USUBE [[UV1]], [[UV3]], [[USUBO1]]
    ; GFX8: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[USUBO]](s32), [[USUBE]](s32)
    ; GFX8: $vgpr0_vgpr1 = COPY [[MV]](s64)
    ; GFX9-LABEL: name: test_sub_s64
    ; GFX9: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
    ; GFX9: [[COPY1:%[0-9]+]]:_(s64) = COPY $vgpr2_vgpr3
    ; GFX9: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
    ; GFX9: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](s64)
    ; GFX9: [[USUBO:%[0-9]+]]:_(s32), [[USUBO1:%[0-9]+]]:_(s1) = G_USUBO [[UV]], [[UV2]]
    ; GFX9: [[USUBE:%[0-9]+]]:_(s32), [[USUBE1:%[0-9]+]]:_(s1) = G_USUBE [[UV1]], [[UV3]], [[USUBO1]]
    ; GFX9: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[USUBO]](s32), [[USUBE]](s32)
    ; GFX9: $vgpr0_vgpr1 = COPY [[MV]](s64)
    %0:_(s64) = COPY $vgpr0_vgpr1
    %1:_(s64) = COPY $vgpr2_vgpr3
    %2:_(s64) = G_SUB %0, %1
    $vgpr0_vgpr1 = COPY %2
...

---
name: test_sub_s7
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1

    ; GFX6-LABEL: name: test_sub_s7
    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX6: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
    ; GFX6: [[COPY3:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
    ; GFX6: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[COPY2]], [[COPY3]]
    ; GFX6: [[COPY4:%[0-9]+]]:_(s32) = COPY [[SUB]](s32)
    ; GFX6: $vgpr0 = COPY [[COPY4]](s32)
    ; GFX8-LABEL: name: test_sub_s7
    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX8: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
    ; GFX8: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[COPY1]](s32)
    ; GFX8: [[SUB:%[0-9]+]]:_(s16) = G_SUB [[TRUNC]], [[TRUNC1]]
    ; GFX8: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SUB]](s16)
    ; GFX8: $vgpr0 = COPY [[ANYEXT]](s32)
    ; GFX9-LABEL: name: test_sub_s7
    ; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX9: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
    ; GFX9: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[COPY1]](s32)
    ; GFX9: [[SUB:%[0-9]+]]:_(s16) = G_SUB [[TRUNC]], [[TRUNC1]]
    ; GFX9: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SUB]](s16)
    ; GFX9: $vgpr0 = COPY [[ANYEXT]](s32)
    %0:_(s32) = COPY $vgpr0
    %1:_(s32) = COPY $vgpr1
    %2:_(s7) = G_TRUNC %0
    %3:_(s7) = G_TRUNC %1
    %4:_(s7) = G_SUB %2, %3
    %5:_(s32) = G_ANYEXT %4
    $vgpr0 = COPY %5
...

---
name: test_sub_s24
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1

    ; GFX6-LABEL: name: test_sub_s24
    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX6: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
    ; GFX6: [[COPY3:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
    ; GFX6: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[COPY2]], [[COPY3]]
    ; GFX6: [[COPY4:%[0-9]+]]:_(s32) = COPY [[SUB]](s32)
    ; GFX6: $vgpr0 = COPY [[COPY4]](s32)
    ; GFX8-LABEL: name: test_sub_s24
    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX8: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
    ; GFX8: [[COPY3:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
    ; GFX8: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[COPY2]], [[COPY3]]
    ; GFX8: [[COPY4:%[0-9]+]]:_(s32) = COPY [[SUB]](s32)
    ; GFX8: $vgpr0 = COPY [[COPY4]](s32)
    ; GFX9-LABEL: name: test_sub_s24
    ; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
    ; GFX9: [[COPY3:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
    ; GFX9: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[COPY2]], [[COPY3]]
    ; GFX9: [[COPY4:%[0-9]+]]:_(s32) = COPY [[SUB]](s32)
    ; GFX9: $vgpr0 = COPY [[COPY4]](s32)
    %0:_(s32) = COPY $vgpr0
    %1:_(s32) = COPY $vgpr1
    %2:_(s24) = G_TRUNC %0
    %3:_(s24) = G_TRUNC %1
    %4:_(s24) = G_SUB %2, %3
    %5:_(s32) = G_ANYEXT %4
    $vgpr0 = COPY %5
...

# FIXME
# ---
# name: test_sub_s33
# body: |
#   bb.0:
#     liveins: $vgpr0_vgpr1, $vgpr2_vgpr3

#     %0:_(s64) = COPY $vgpr0_vgpr1
#     %1:_(s64) = COPY $vgpr2_vgpr3
#     %2:_(s33) = G_TRUNC %0
#     %3:_(s33) = G_TRUNC %1
#     %4:_(s33) = G_SUB %2, %3
#     %5:_(s64) = G_ANYEXT %4
#     $vgpr0_vgpr1 = COPY %5
# ...

---
name: test_sub_s96
body: |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2, $vgpr3_vgpr4_vgpr5

    ; GFX6-LABEL: name: test_sub_s96
    ; GFX6: [[COPY:%[0-9]+]]:_(s96) = COPY $vgpr0_vgpr1_vgpr2
    ; GFX6: [[COPY1:%[0-9]+]]:_(s96) = COPY $vgpr3_vgpr4_vgpr5
    ; GFX6: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s96)
    ; GFX6: [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](s96)
    ; GFX6: [[USUBO:%[0-9]+]]:_(s32), [[USUBO1:%[0-9]+]]:_(s1) = G_USUBO [[UV]], [[UV3]]
    ; GFX6: [[USUBE:%[0-9]+]]:_(s32), [[USUBE1:%[0-9]+]]:_(s1) = G_USUBE [[UV1]], [[UV4]], [[USUBO1]]
    ; GFX6: [[USUBE2:%[0-9]+]]:_(s32), [[USUBE3:%[0-9]+]]:_(s1) = G_USUBE [[UV2]], [[UV5]], [[USUBE1]]
    ; GFX6: [[MV:%[0-9]+]]:_(s96) = G_MERGE_VALUES [[USUBO]](s32), [[USUBE]](s32), [[USUBE2]](s32)
    ; GFX6: $vgpr0_vgpr1_vgpr2 = COPY [[MV]](s96)
    ; GFX8-LABEL: name: test_sub_s96
    ; GFX8: [[COPY:%[0-9]+]]:_(s96) = COPY $vgpr0_vgpr1_vgpr2
    ; GFX8: [[COPY1:%[0-9]+]]:_(s96) = COPY $vgpr3_vgpr4_vgpr5
    ; GFX8: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s96)
    ; GFX8: [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](s96)
    ; GFX8: [[USUBO:%[0-9]+]]:_(s32), [[USUBO1:%[0-9]+]]:_(s1) = G_USUBO [[UV]], [[UV3]]
    ; GFX8: [[USUBE:%[0-9]+]]:_(s32), [[USUBE1:%[0-9]+]]:_(s1) = G_USUBE [[UV1]], [[UV4]], [[USUBO1]]
    ; GFX8: [[USUBE2:%[0-9]+]]:_(s32), [[USUBE3:%[0-9]+]]:_(s1) = G_USUBE [[UV2]], [[UV5]], [[USUBE1]]
    ; GFX8: [[MV:%[0-9]+]]:_(s96) = G_MERGE_VALUES [[USUBO]](s32), [[USUBE]](s32), [[USUBE2]](s32)
    ; GFX8: $vgpr0_vgpr1_vgpr2 = COPY [[MV]](s96)
    ; GFX9-LABEL: name: test_sub_s96
    ; GFX9: [[COPY:%[0-9]+]]:_(s96) = COPY $vgpr0_vgpr1_vgpr2
    ; GFX9: [[COPY1:%[0-9]+]]:_(s96) = COPY $vgpr3_vgpr4_vgpr5
    ; GFX9: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s96)
    ; GFX9: [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](s96)
    ; GFX9: [[USUBO:%[0-9]+]]:_(s32), [[USUBO1:%[0-9]+]]:_(s1) = G_USUBO [[UV]], [[UV3]]
    ; GFX9: [[USUBE:%[0-9]+]]:_(s32), [[USUBE1:%[0-9]+]]:_(s1) = G_USUBE [[UV1]], [[UV4]], [[USUBO1]]
    ; GFX9: [[USUBE2:%[0-9]+]]:_(s32), [[USUBE3:%[0-9]+]]:_(s1) = G_USUBE [[UV2]], [[UV5]], [[USUBE1]]
    ; GFX9: [[MV:%[0-9]+]]:_(s96) = G_MERGE_VALUES [[USUBO]](s32), [[USUBE]](s32), [[USUBE2]](s32)
    ; GFX9: $vgpr0_vgpr1_vgpr2 = COPY [[MV]](s96)
    %0:_(s96) = COPY $vgpr0_vgpr1_vgpr2
    %1:_(s96) = COPY $vgpr3_vgpr4_vgpr5
    %2:_(s96) = G_SUB %0, %1
    $vgpr0_vgpr1_vgpr2 = COPY %2
...