# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -mtriple=amdgcn-mesa-mesa3d -mcpu=tahiti -run-pass=legalizer -global-isel-abort=0 -o - %s  | FileCheck %s

---
name: test_unmerge_values_s1_trunc_v2s1_of_build_vector_v2s32
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s1_trunc_v2s1_of_build_vector_v2s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; CHECK: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[UV]](s32), [[UV2]]
    ; CHECK: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[UV1]](s32), [[UV3]]
    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ICMP]](s1)
    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ICMP1]](s1)
    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[ANYEXT]](s32)
    ; CHECK: [[SEXT_INREG:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY2]], 1
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[ANYEXT1]](s32)
    ; CHECK: [[SEXT_INREG1:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY3]], 1
    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[SEXT_INREG]](s32), [[SEXT_INREG1]](s32)
    ; CHECK: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %2:_(s32), %3:_(s32) = G_UNMERGE_VALUES %0(<2 x s32>)
    %4:_(s32), %5:_(s32) = G_UNMERGE_VALUES %1(<2 x s32>)
    %6:_(s1) = G_ICMP intpred(ne), %2(s32), %4
    %7:_(s1) = G_ICMP intpred(ne), %3(s32), %5
    %8:_(s32) = G_ANYEXT %6(s1)
    %9:_(s32) = G_ANYEXT %7(s1)
    %10:_(<2 x s32>) = G_BUILD_VECTOR %8, %9
    %11:_(<2 x s1>) = G_TRUNC %10(<2 x s32>)
    %12:_(s1), %13:_(s1) = G_UNMERGE_VALUES %11
    %14:_(s32) = G_SEXT %12
    %15:_(s32) = G_SEXT %13
    %16:_(<2 x s32>) = G_BUILD_VECTOR %14, %15
    $vgpr0_vgpr1 = COPY %16

...

# Requires looking thorugh extra copies between the build_vector,
# trunc and unmerge.
---
name: test_unmerge_values_s1_trunc_v2s1_of_build_vector_v2s32_extra_copies
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s1_trunc_v2s1_of_build_vector_v2s32_extra_copies
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; CHECK: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[UV]](s32), [[UV2]]
    ; CHECK: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[UV1]](s32), [[UV3]]
    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ICMP]](s1)
    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ICMP1]](s1)
    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[ANYEXT]](s32)
    ; CHECK: [[SEXT_INREG:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY2]], 1
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[ANYEXT1]](s32)
    ; CHECK: [[SEXT_INREG1:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY3]], 1
    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[SEXT_INREG]](s32), [[SEXT_INREG1]](s32)
    ; CHECK: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %2:_(s32), %3:_(s32) = G_UNMERGE_VALUES %0(<2 x s32>)
    %4:_(s32), %5:_(s32) = G_UNMERGE_VALUES %1(<2 x s32>)
    %6:_(s1) = G_ICMP intpred(ne), %2(s32), %4
    %7:_(s1) = G_ICMP intpred(ne), %3(s32), %5
    %8:_(s32) = G_ANYEXT %6(s1)
    %9:_(s32) = G_ANYEXT %7(s1)
    %10:_(<2 x s32>) = G_BUILD_VECTOR %8, %9
    %11:_(<2 x s32>) = COPY %10
    %12:_(<2 x s1>) = G_TRUNC %11(<2 x s32>)
    %13:_(<2 x s1>) = COPY %12
    %14:_(s1), %15:_(s1) = G_UNMERGE_VALUES %13
    %16:_(s32) = G_SEXT %14
    %17:_(s32) = G_SEXT %15
    %18:_(<2 x s32>) = G_BUILD_VECTOR %16, %17
    $vgpr0_vgpr1 = COPY %18

...

---
name: test_unmerge_values_s32_sext_v2s32_of_build_vector_v2s16
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s32_sext_v2s32_of_build_vector_v2s16
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; CHECK: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[UV]](s32), [[UV2]]
    ; CHECK: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[UV1]](s32), [[UV3]]
    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[ICMP]](s1)
    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[ICMP1]](s1)
    ; CHECK: [[SEXT:%[0-9]+]]:_(s32) = G_SEXT [[ANYEXT]](s16)
    ; CHECK: [[SEXT1:%[0-9]+]]:_(s32) = G_SEXT [[ANYEXT1]](s16)
    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[SEXT]](s32), [[SEXT1]](s32)
    ; CHECK: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %2:_(s32), %3:_(s32) = G_UNMERGE_VALUES %0(<2 x s32>)
    %4:_(s32), %5:_(s32) = G_UNMERGE_VALUES %1(<2 x s32>)
    %6:_(s1) = G_ICMP intpred(ne), %2(s32), %4
    %7:_(s1) = G_ICMP intpred(ne), %3(s32), %5
    %8:_(s16) = G_ANYEXT %6
    %9:_(s16) = G_ANYEXT %7
    %10:_(<2 x s16>) = G_BUILD_VECTOR %8, %9
    %11:_(<2 x s32>) = G_SEXT %10
    %12:_(s32), %13:_(s32) = G_UNMERGE_VALUES %11
    %14:_(<2 x s32>) = G_BUILD_VECTOR %12, %13
    $vgpr0_vgpr1 = COPY %14

...

---
name: test_unmerge_values_s32_zext_v2s32_of_build_vector_v2s16
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s32_zext_v2s32_of_build_vector_v2s16
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; CHECK: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[UV]](s32), [[UV2]]
    ; CHECK: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[UV1]](s32), [[UV3]]
    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[ICMP]](s1)
    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[ICMP1]](s1)
    ; CHECK: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[ANYEXT]](s16)
    ; CHECK: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[ANYEXT1]](s16)
    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[ZEXT]](s32), [[ZEXT1]](s32)
    ; CHECK: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %2:_(s32), %3:_(s32) = G_UNMERGE_VALUES %0(<2 x s32>)
    %4:_(s32), %5:_(s32) = G_UNMERGE_VALUES %1(<2 x s32>)
    %6:_(s1) = G_ICMP intpred(ne), %2(s32), %4
    %7:_(s1) = G_ICMP intpred(ne), %3(s32), %5
    %8:_(s16) = G_ANYEXT %6(s1)
    %9:_(s16) = G_ANYEXT %7(s1)
    %10:_(<2 x s16>) = G_BUILD_VECTOR %8, %9
    %11:_(<2 x s32>) = G_ZEXT %10
    %12:_(s32), %13:_(s32) = G_UNMERGE_VALUES %11
    %14:_(<2 x s32>) = G_BUILD_VECTOR %12(s32), %13(s32)
    $vgpr0_vgpr1 = COPY %14(<2 x s32>)

...

---
name: test_unmerge_values_s32_anyext_v2s32_of_build_vector_v2s16
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s32_anyext_v2s32_of_build_vector_v2s16
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; CHECK: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[UV]](s32), [[UV2]]
    ; CHECK: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[UV1]](s32), [[UV3]]
    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ICMP]](s1)
    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ICMP1]](s1)
    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[ANYEXT]](s32), [[ANYEXT1]](s32)
    ; CHECK: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %2:_(s32), %3:_(s32) = G_UNMERGE_VALUES %0(<2 x s32>)
    %4:_(s32), %5:_(s32) = G_UNMERGE_VALUES %1(<2 x s32>)
    %6:_(s1) = G_ICMP intpred(ne), %2(s32), %4
    %7:_(s1) = G_ICMP intpred(ne), %3(s32), %5
    %8:_(s16) = G_ANYEXT %6(s1)
    %9:_(s16) = G_ANYEXT %7(s1)
    %10:_(<2 x s16>) = G_BUILD_VECTOR %8, %9
    %11:_(<2 x s32>) = G_ANYEXT %10
    %12:_(s32), %13:_(s32) = G_UNMERGE_VALUES %11
    %14:_(<2 x s32>) = G_BUILD_VECTOR %12, %13
    $vgpr0_vgpr1 = COPY %14

...

---
name: test_unmerge_values_v2s16_zext_v4s32_of_build_vector_v4s16

body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_v2s16_zext_v4s32_of_build_vector_v4s16
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; CHECK: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[UV]](s32), [[UV2]]
    ; CHECK: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[UV1]](s32), [[UV3]]
    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[ICMP]](s1)
    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[ICMP1]](s1)
    ; CHECK: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[ANYEXT]](s16)
    ; CHECK: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[ANYEXT1]](s16)
    ; CHECK: [[ZEXT2:%[0-9]+]]:_(s32) = G_ZEXT [[ANYEXT]](s16)
    ; CHECK: [[ZEXT3:%[0-9]+]]:_(s32) = G_ZEXT [[ANYEXT1]](s16)
    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[ZEXT]](s32)
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[ZEXT1]](s32)
    ; CHECK: [[BITCAST2:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[ZEXT2]](s32)
    ; CHECK: [[BITCAST3:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[ZEXT3]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<2 x s16>), implicit [[BITCAST1]](<2 x s16>), implicit [[BITCAST2]](<2 x s16>), implicit [[BITCAST3]](<2 x s16>)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %2:_(s32), %3:_(s32) = G_UNMERGE_VALUES %0(<2 x s32>)
    %4:_(s32), %5:_(s32) = G_UNMERGE_VALUES %1(<2 x s32>)
    %6:_(s1) = G_ICMP intpred(ne), %2(s32), %4
    %7:_(s1) = G_ICMP intpred(ne), %3(s32), %5
    %8:_(s16) = G_ANYEXT %6
    %9:_(s16) = G_ANYEXT %7
    %10:_(<4 x s16>) = G_BUILD_VECTOR %8, %9, %8, %9
    %11:_(<4 x s32>) = G_ZEXT %10
    %12:_(<2 x s16>), %13:_(<2 x s16>), %14:_(<2 x s16>), %15:_(<2 x s16>) = G_UNMERGE_VALUES %11
    S_ENDPGM 0, implicit %12, implicit %13, implicit %14, implicit %15

...

---
name: test_unmerge_values_s1_trunc_v4s1_of_concat_vectors_v4s32_v2s32
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s1_trunc_v4s1_of_concat_vectors_v4s32_v2s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr2_vgpr3
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
    ; CHECK: [[SEXT_INREG:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY2]], 1
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
    ; CHECK: [[SEXT_INREG1:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY3]], 1
    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
    ; CHECK: [[SEXT_INREG2:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY4]], 1
    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
    ; CHECK: [[SEXT_INREG3:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY5]], 1
    ; CHECK: $vgpr0 = COPY [[SEXT_INREG]](s32)
    ; CHECK: $vgpr1 = COPY [[SEXT_INREG1]](s32)
    ; CHECK: $vgpr2 = COPY [[SEXT_INREG2]](s32)
    ; CHECK: $vgpr3 = COPY [[SEXT_INREG3]](s32)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr2_vgpr3
    %2:_(<4 x s32>) = G_CONCAT_VECTORS %0, %1
    %3:_(<4 x s1>) = G_TRUNC %2
    %4:_(s1), %5:_(s1), %6:_(s1), %7:_(s1) = G_UNMERGE_VALUES %3
    %8:_(s32) = G_SEXT %4
    %9:_(s32) = G_SEXT %5
    %10:_(s32) = G_SEXT %6
    %11:_(s32) = G_SEXT %7
    $vgpr0 = COPY %8
    $vgpr1 = COPY %9
    $vgpr2 = COPY %10
    $vgpr3 = COPY %11
...

---
name: test_unmerge_values_s16_of_concat_vectors_v2s16_v2s16
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s16_of_concat_vectors_v2s16_v2s16
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr0
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr1
    ; CHECK: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[COPY]](<2 x s16>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST]](s32)
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[COPY1]](<2 x s16>)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST1]](s32)
    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR1]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](s16), implicit [[TRUNC1]](s16), implicit [[TRUNC2]](s16), implicit [[TRUNC3]](s16)
    %0:_(<2 x s16>) = COPY $vgpr0
    %1:_(<2 x s16>) = COPY $vgpr1
    %2:_(<4 x s16>) = G_CONCAT_VECTORS %0, %1
    %3:_(s16), %4:_(s16), %5:_(s16), %6:_(s16) = G_UNMERGE_VALUES %2
    S_ENDPGM 0, implicit %3, implicit %4, implicit %5, implicit %6
...

---
name: test_unmerge_values_s32_of_concat_vectors_v2s32_v2s32
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s32_of_concat_vectors_v2s32_v2s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr1_vgpr2
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; CHECK: S_ENDPGM 0, implicit [[UV]](s32), implicit [[UV1]](s32), implicit [[UV2]](s32), implicit [[UV3]](s32)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr1_vgpr2
    %2:_(<4 x s32>) = G_CONCAT_VECTORS %0, %1
    %3:_(s32), %4:_(s32), %5:_(s32), %6:_(s32) = G_UNMERGE_VALUES %2
    S_ENDPGM 0, implicit %3, implicit %4, implicit %5, implicit %6
...

---
name: test_unmerge_values_s32_of_concat_vectors_v2s64_v2s64
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s32_of_concat_vectors_v2s64_v2s64
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s64>) = COPY $vgpr4_vgpr5_vgpr6_vgpr7
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s64>)
    ; CHECK: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s64>)
    ; CHECK: S_ENDPGM 0, implicit [[UV]](s32), implicit [[UV1]](s32), implicit [[UV2]](s32), implicit [[UV3]](s32), implicit [[UV4]](s32), implicit [[UV5]](s32), implicit [[UV6]](s32), implicit [[UV7]](s32)
    %0:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    %1:_(<2 x s64>) = COPY $vgpr4_vgpr5_vgpr6_vgpr7
    %2:_(<4 x s64>) = G_CONCAT_VECTORS %0, %1
    %3:_(s32), %4:_(s32), %5:_(s32), %6:_(s32), %7:_(s32), %8:_(s32), %9:_(s32), %10:_(s32) = G_UNMERGE_VALUES %2
    S_ENDPGM 0, implicit %3, implicit %4, implicit %5, implicit %6, implicit %7, implicit %8, implicit %9, implicit %10
...

---
name: test_unmerge_values_s32_of_trunc_concat_vectors_v2s64_v2s64
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s32_of_trunc_concat_vectors_v2s64_v2s64
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s64>) = COPY $vgpr4_vgpr5_vgpr6_vgpr7
    ; CHECK: [[UV:%[0-9]+]]:_(s64), [[UV1:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[COPY]](<2 x s64>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s64), [[UV3:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[COPY1]](<2 x s64>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[UV]](s64)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[UV1]](s64)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s32) = G_TRUNC [[UV2]](s64)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s32) = G_TRUNC [[UV3]](s64)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](s32), implicit [[TRUNC1]](s32), implicit [[TRUNC2]](s32), implicit [[TRUNC3]](s32)
    %0:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    %1:_(<2 x s64>) = COPY $vgpr4_vgpr5_vgpr6_vgpr7
    %2:_(<4 x s64>) = G_CONCAT_VECTORS %0, %1
    %3:_(<4 x s32>) = G_TRUNC %2
    %4:_(s32), %5:_(s32), %6:_(s32), %7:_(s32) = G_UNMERGE_VALUES %3
    S_ENDPGM 0, implicit %4, implicit %5, implicit %6, implicit %7
...

---
name: test_unmerge_values_s64_of_sext_concat_vectors_v2s32_v2s32
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s64_of_sext_concat_vectors_v2s32_v2s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr2_vgpr3
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; CHECK: [[SEXT:%[0-9]+]]:_(s64) = G_SEXT [[UV]](s32)
    ; CHECK: [[SEXT1:%[0-9]+]]:_(s64) = G_SEXT [[UV1]](s32)
    ; CHECK: [[SEXT2:%[0-9]+]]:_(s64) = G_SEXT [[UV2]](s32)
    ; CHECK: [[SEXT3:%[0-9]+]]:_(s64) = G_SEXT [[UV3]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[SEXT]](s64), implicit [[SEXT1]](s64), implicit [[SEXT2]](s64), implicit [[SEXT3]](s64)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr2_vgpr3
    %2:_(<4 x s32>) = G_CONCAT_VECTORS %0, %1
    %3:_(<4 x s64>) = G_SEXT %2
    %4:_(s64), %5:_(s64), %6:_(s64), %7:_(s64) = G_UNMERGE_VALUES %3
    S_ENDPGM 0, implicit %4, implicit %5, implicit %6, implicit %7
...

---
name: test_unmerge_values_s64_of_zext_concat_vectors_v2s32_v2s32
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s64_of_zext_concat_vectors_v2s32_v2s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr2_vgpr3
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; CHECK: [[ZEXT:%[0-9]+]]:_(s64) = G_ZEXT [[UV]](s32)
    ; CHECK: [[ZEXT1:%[0-9]+]]:_(s64) = G_ZEXT [[UV1]](s32)
    ; CHECK: [[ZEXT2:%[0-9]+]]:_(s64) = G_ZEXT [[UV2]](s32)
    ; CHECK: [[ZEXT3:%[0-9]+]]:_(s64) = G_ZEXT [[UV3]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[ZEXT]](s64), implicit [[ZEXT1]](s64), implicit [[ZEXT2]](s64), implicit [[ZEXT3]](s64)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr2_vgpr3
    %2:_(<4 x s32>) = G_CONCAT_VECTORS %0, %1
    %3:_(<4 x s64>) = G_ZEXT %2
    %4:_(s64), %5:_(s64), %6:_(s64), %7:_(s64) = G_UNMERGE_VALUES %3
    S_ENDPGM 0, implicit %4, implicit %5, implicit %6, implicit %7
...

---
name: test_unmerge_values_s64_of_anyext_concat_vectors_v2s32_v2s32
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s64_of_anyext_concat_vectors_v2s32_v2s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr2_vgpr3
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<2 x s32>)
    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s64) = G_ANYEXT [[UV]](s32)
    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s64) = G_ANYEXT [[UV1]](s32)
    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s64) = G_ANYEXT [[UV2]](s32)
    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s64) = G_ANYEXT [[UV3]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[ANYEXT]](s64), implicit [[ANYEXT1]](s64), implicit [[ANYEXT2]](s64), implicit [[ANYEXT3]](s64)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr2_vgpr3
    %2:_(<4 x s32>) = G_CONCAT_VECTORS %0, %1
    %3:_(<4 x s64>) = G_ANYEXT %2
    %4:_(s64), %5:_(s64), %6:_(s64), %7:_(s64) = G_UNMERGE_VALUES %3
    S_ENDPGM 0, implicit %4, implicit %5, implicit %6, implicit %7
...

---
name: test_unmerge_values_s8_of_trunc_v4s16_concat_vectors_v2s32_v2s32
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s8_of_trunc_v4s16_concat_vectors_v2s32_v2s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr2_vgpr3
    ; CHECK: [[TRUNC:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[COPY]](<2 x s32>)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[COPY1]](<2 x s32>)
    ; CHECK: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[TRUNC]](<2 x s16>)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[BITCAST]](s32)
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[LSHR]](s32)
    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C1]](s32)
    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[LSHR1]](s32)
    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C2]](s32)
    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[LSHR2]](s32)
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[TRUNC1]](<2 x s16>)
    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[BITCAST1]](s32)
    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[LSHR3]](s32)
    ; CHECK: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C1]](s32)
    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[LSHR4]](s32)
    ; CHECK: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C2]](s32)
    ; CHECK: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[LSHR5]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC2]](s8), implicit [[TRUNC3]](s8), implicit [[TRUNC4]](s8), implicit [[TRUNC5]](s8), implicit [[TRUNC6]](s8), implicit [[TRUNC7]](s8), implicit [[TRUNC8]](s8), implicit [[TRUNC9]](s8)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr2_vgpr3
    %2:_(<4 x s32>) = G_CONCAT_VECTORS %0, %1
    %3:_(<4 x s16>) = G_TRUNC %2
    %4:_(s8), %5:_(s8), %6:_(s8), %7:_(s8), %8:_(s8), %9:_(s8), %10:_(s8), %11:_(s8) = G_UNMERGE_VALUES %3
    S_ENDPGM 0, implicit %4, implicit %5, implicit %6, implicit %7, implicit %8, implicit %9, implicit %10, implicit %11
...

---
name: test_unmerge_values_s16_of_anyext_v4s64_concat_vectors_v2s32_v2s32
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s16_of_anyext_v4s64_concat_vectors_v2s32_v2s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr2_vgpr3
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s64) = G_ANYEXT [[UV]](s32)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[ANYEXT]](s64)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV2]](s32)
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[UV3]](s32)
    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR1]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](s16), implicit [[TRUNC1]](s16), implicit [[TRUNC2]](s16), implicit [[TRUNC3]](s16)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr2_vgpr3
    %2:_(<4 x s32>) = G_CONCAT_VECTORS %0, %1
    %3:_(<4 x s64>) = G_ANYEXT %2
    %4:_(s16), %5:_(s16), %6:_(s16), %7:_(s16), %8:_(s16), %9:_(s16), %10:_(s16), %11:_(s16), %12:_(s16), %13:_(s16), %14:_(s16), %15:_(s16), %16:_(s16), %17:_(s16), %18:_(s16), %19:_(s16) = G_UNMERGE_VALUES %3
    S_ENDPGM 0, implicit %4, implicit %5, implicit %6, implicit %7
...

# FIXME: Handle this
---
name: test_unmerge_values_s32_of_concat_vectors_v4s32_v4s32
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s32_of_concat_vectors_v4s32_v4s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr2_vgpr3
    ; CHECK: [[COPY2:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr4_vgpr5
    ; CHECK: [[COPY3:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr6_vgpr7
    ; CHECK: [[TRUNC:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[COPY]](<2 x s32>)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[COPY1]](<2 x s32>)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[COPY2]](<2 x s32>)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[COPY3]](<2 x s32>)
    ; CHECK: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[TRUNC]](<2 x s16>)
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[TRUNC1]](<2 x s16>)
    ; CHECK: [[BITCAST2:%[0-9]+]]:_(s32) = G_BITCAST [[TRUNC2]](<2 x s16>)
    ; CHECK: [[BITCAST3:%[0-9]+]]:_(s32) = G_BITCAST [[TRUNC3]](<2 x s16>)
    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](s32), implicit [[BITCAST1]](s32), implicit [[BITCAST2]](s32), implicit [[BITCAST3]](s32)
    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
    %1:_(<2 x s32>) = COPY $vgpr2_vgpr3
    %2:_(<2 x s32>) = COPY $vgpr4_vgpr5
    %3:_(<2 x s32>) = COPY $vgpr6_vgpr7
    %4:_(<8 x s32>) = G_CONCAT_VECTORS %0, %1, %2, %3
    %5:_(<8 x s16>) = G_TRUNC %4
    %6:_(s32), %7:_(s32), %8:_(s32), %9:_(s32) = G_UNMERGE_VALUES %5
    S_ENDPGM 0, implicit %6, implicit %7, implicit %8, implicit %9
...

---
name: test_unmerge_values_s64_of_build_vector_v4s32
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s64_of_build_vector_v4s32
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[COPY]](s32), [[COPY1]](s32)
    ; CHECK: [[BUILD_VECTOR1:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[COPY2]](s32), [[COPY3]](s32)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[BUILD_VECTOR]](<2 x s32>)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[BUILD_VECTOR1]](<2 x s32>)
    ; CHECK: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[TRUNC]](<2 x s16>)
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[TRUNC1]](<2 x s16>)
    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](s32), implicit [[BITCAST1]](s32)
    %0:_(s32) = COPY $vgpr0
    %1:_(s32) = COPY $vgpr1
    %2:_(s32) = COPY $vgpr2
    %3:_(s32) = COPY $vgpr3
    %4:_(<4 x s32>) = G_BUILD_VECTOR %0, %1, %2, %3
    %5:_(<4 x s16>) = G_TRUNC %4
    %6:_(s32), %7:_(s32) = G_UNMERGE_VALUES %5
    S_ENDPGM 0, implicit %6, implicit %7
...

# To properly simplify that one, we would need to insert bitcast
# after the G_ZEXT.
# i.e.,
# s64 = zext <2 x s16> <-- invalid
# vs.
# <2 x s32> = zext <2 x s16>
# s64 = bitcast <2 x s32> <-- we are missing the code to do that
---
name: test_unmerge_values_s128_of_zext_of_concat_vectors
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s128_of_zext_of_concat_vectors
    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr0
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr1
    ; CHECK: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[COPY]](<2 x s16>)
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[COPY1]](<2 x s16>)
    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[BITCAST]](s32)
    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY2]], [[C1]]
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C1]]
    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY [[BITCAST1]](s32)
    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C1]]
    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[COPY5]], [[C1]]
    ; CHECK: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[AND]](s32), [[AND1]](s32)
    ; CHECK: [[MV1:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[AND2]](s32), [[AND3]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[MV]](s64), implicit [[MV1]](s64)
    %0:_(<2 x s16>) = COPY $vgpr0
    %1:_(<2 x s16>) = COPY $vgpr1
    %2:_(<4 x s16>) = G_CONCAT_VECTORS %0, %1
    %3:_(<4 x s32>) = G_ZEXT %2
    %4:_(s64), %5:_(s64) = G_UNMERGE_VALUES %3
    S_ENDPGM 0, implicit %4, implicit %5
...

---

name: test_unmerge_values_v3s32_of_v12s32_concat_vectors_v4s32
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_v3s32_of_v12s32_concat_vectors_v4s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    ; CHECK: [[COPY1:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr4_vgpr5_vgpr6_vgpr7
    ; CHECK: [[COPY2:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr8_vgpr9_vgpr10_vgpr11
    ; CHECK: [[CONCAT_VECTORS:%[0-9]+]]:_(<12 x s32>) = G_CONCAT_VECTORS [[COPY]](<4 x s32>), [[COPY1]](<4 x s32>), [[COPY2]](<4 x s32>)
    ; CHECK: [[UV:%[0-9]+]]:_(<3 x s32>), [[UV1:%[0-9]+]]:_(<3 x s32>), [[UV2:%[0-9]+]]:_(<3 x s32>), [[UV3:%[0-9]+]]:_(<3 x s32>) = G_UNMERGE_VALUES [[CONCAT_VECTORS]](<12 x s32>)
    ; CHECK: S_ENDPGM 0, implicit [[UV]](<3 x s32>), implicit [[UV1]](<3 x s32>), implicit [[UV2]](<3 x s32>), implicit [[UV3]](<3 x s32>)
    %0:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    %1:_(<4 x s32>) = COPY $vgpr4_vgpr5_vgpr6_vgpr7
    %2:_(<4 x s32>) = COPY $vgpr8_vgpr9_vgpr10_vgpr11
    %3:_(<12 x s32>) = G_CONCAT_VECTORS %0, %1, %2
    %4:_(<3 x s32>), %5:_(<3 x s32>), %6:_(<3 x s32>), %7:_(<3 x s32>) = G_UNMERGE_VALUES %3
    S_ENDPGM 0, implicit %4, implicit %5, implicit %6, implicit %7
...

---
name: test_unmerge_values_v3s16_of_v12s16_concat_vectors_v4s16
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_v3s16_of_v12s16_concat_vectors_v4s16
    ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr2_vgpr3
    ; CHECK: [[COPY2:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr4_vgpr5
    ; CHECK: [[UV:%[0-9]+]]:_(<2 x s16>), [[UV1:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY]](<4 x s16>)
    ; CHECK: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[UV]](<2 x s16>)
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[UV1]](<2 x s16>)
    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[BITCAST]](s32)
    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY [[BITCAST1]](s32)
    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<3 x s32>) = G_BUILD_VECTOR [[COPY3]](s32), [[COPY4]](s32), [[COPY5]](s32)
    ; CHECK: [[UV2:%[0-9]+]]:_(<2 x s16>), [[UV3:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY]](<4 x s16>)
    ; CHECK: [[BITCAST2:%[0-9]+]]:_(s32) = G_BITCAST [[UV3]](<2 x s16>)
    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST2]], [[C]](s32)
    ; CHECK: [[UV4:%[0-9]+]]:_(<2 x s16>), [[UV5:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY1]](<4 x s16>)
    ; CHECK: [[BITCAST3:%[0-9]+]]:_(s32) = G_BITCAST [[UV4]](<2 x s16>)
    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST3]], [[C]](s32)
    ; CHECK: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
    ; CHECK: [[COPY7:%[0-9]+]]:_(s32) = COPY [[BITCAST3]](s32)
    ; CHECK: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
    ; CHECK: [[BUILD_VECTOR1:%[0-9]+]]:_(<3 x s32>) = G_BUILD_VECTOR [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
    ; CHECK: [[UV6:%[0-9]+]]:_(<2 x s16>), [[UV7:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY1]](<4 x s16>)
    ; CHECK: [[BITCAST4:%[0-9]+]]:_(s32) = G_BITCAST [[UV7]](<2 x s16>)
    ; CHECK: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST4]], [[C]](s32)
    ; CHECK: [[UV8:%[0-9]+]]:_(<2 x s16>), [[UV9:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY2]](<4 x s16>)
    ; CHECK: [[BITCAST5:%[0-9]+]]:_(s32) = G_BITCAST [[UV8]](<2 x s16>)
    ; CHECK: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST5]], [[C]](s32)
    ; CHECK: [[COPY9:%[0-9]+]]:_(s32) = COPY [[BITCAST4]](s32)
    ; CHECK: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
    ; CHECK: [[COPY11:%[0-9]+]]:_(s32) = COPY [[BITCAST5]](s32)
    ; CHECK: [[BUILD_VECTOR2:%[0-9]+]]:_(<3 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32)
    ; CHECK: [[UV10:%[0-9]+]]:_(<2 x s16>), [[UV11:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY2]](<4 x s16>)
    ; CHECK: [[BITCAST6:%[0-9]+]]:_(s32) = G_BITCAST [[UV10]](<2 x s16>)
    ; CHECK: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST6]], [[C]](s32)
    ; CHECK: [[BITCAST7:%[0-9]+]]:_(s32) = G_BITCAST [[UV11]](<2 x s16>)
    ; CHECK: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST7]], [[C]](s32)
    ; CHECK: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
    ; CHECK: [[COPY13:%[0-9]+]]:_(s32) = COPY [[BITCAST7]](s32)
    ; CHECK: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
    ; CHECK: [[BUILD_VECTOR3:%[0-9]+]]:_(<3 x s32>) = G_BUILD_VECTOR [[COPY12]](s32), [[COPY13]](s32), [[COPY14]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[BUILD_VECTOR]](<3 x s32>), implicit [[BUILD_VECTOR1]](<3 x s32>), implicit [[BUILD_VECTOR2]](<3 x s32>), implicit [[BUILD_VECTOR3]](<3 x s32>)
    %0:_(<4 x s16>) = COPY $vgpr0_vgpr1
    %1:_(<4 x s16>) = COPY $vgpr2_vgpr3
    %2:_(<4 x s16>) = COPY $vgpr4_vgpr5
    %3:_(<12 x s16>) = G_CONCAT_VECTORS %0, %1, %2
    %4:_(<3 x s16>), %5:_(<3 x s16>), %6:_(<3 x s16>), %7:_(<3 x s16>) = G_UNMERGE_VALUES %3
    %8:_(<3 x s32>) = G_ANYEXT %4
    %9:_(<3 x s32>) = G_ANYEXT %5
    %10:_(<3 x s32>) = G_ANYEXT %6
    %11:_(<3 x s32>) = G_ANYEXT %7
    S_ENDPGM 0, implicit %8, implicit %9, implicit %10, implicit %11
...

---
name:            unmerge_v2s16_from_v4s16_sext_v4s8_concat_vectors_v2s8
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3

    ; CHECK-LABEL: name: unmerge_v2s16_from_v4s16_sext_v4s8_concat_vectors_v2s8
    ; CHECK: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
    ; CHECK: [[COPY6:%[0-9]+]]:_(s32) = COPY [[COPY2]](s32)
    ; CHECK: [[COPY7:%[0-9]+]]:_(s32) = COPY [[COPY3]](s32)
    ; CHECK: [[COPY8:%[0-9]+]]:_(s32) = COPY [[COPY4]](s32)
    ; CHECK: [[SEXT_INREG:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY8]], 8
    ; CHECK: [[COPY9:%[0-9]+]]:_(s32) = COPY [[COPY5]](s32)
    ; CHECK: [[SEXT_INREG1:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY9]], 8
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
    ; CHECK: [[COPY10:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG]](s32)
    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY10]], [[C]]
    ; CHECK: [[COPY11:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG1]](s32)
    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY11]], [[C]]
    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND1]], [[C1]](s32)
    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND]], [[SHL]]
    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR]](s32)
    ; CHECK: [[COPY12:%[0-9]+]]:_(s32) = COPY [[COPY6]](s32)
    ; CHECK: [[SEXT_INREG2:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY12]], 8
    ; CHECK: [[COPY13:%[0-9]+]]:_(s32) = COPY [[COPY7]](s32)
    ; CHECK: [[SEXT_INREG3:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY13]], 8
    ; CHECK: [[COPY14:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG2]](s32)
    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY14]], [[C]]
    ; CHECK: [[COPY15:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG3]](s32)
    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[COPY15]], [[C]]
    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[AND3]], [[C1]](s32)
    ; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[AND2]], [[SHL1]]
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR1]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<2 x s16>), implicit [[BITCAST1]](<2 x s16>)
    %0:_(s32) = COPY $vgpr0
    %1:_(s32) = COPY $vgpr1
    %2:_(s32) = COPY $vgpr2
    %3:_(s32) = COPY $vgpr3
    %4:_(s8) = G_TRUNC %0
    %5:_(s8) = G_TRUNC %1
    %6:_(s8) = G_TRUNC %2
    %7:_(s8) = G_TRUNC %3
    %8:_(<2 x s8>) = G_BUILD_VECTOR %4, %5
    %9:_(<2 x s8>) = G_BUILD_VECTOR %6, %7
    %10:_(<4 x s8>) = G_CONCAT_VECTORS %8, %9
    %11:_(<4 x s16>) = G_SEXT %10
    %12:_(<2 x s16>), %13:_(<2 x s16>) = G_UNMERGE_VALUES %11
    S_ENDPGM 0, implicit %12, implicit %13
...

---
name:            unmerge_v2s16_from_v8s16_sext_v8s8_concat_vectors_v4s8
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7

    ; CHECK-LABEL: name: unmerge_v2s16_from_v8s16_sext_v8s8_concat_vectors_v4s8
    ; CHECK: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY $vgpr4
    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY $vgpr5
    ; CHECK: [[COPY6:%[0-9]+]]:_(s32) = COPY $vgpr6
    ; CHECK: [[COPY7:%[0-9]+]]:_(s32) = COPY $vgpr7
    ; CHECK: [[COPY8:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
    ; CHECK: [[COPY9:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
    ; CHECK: [[COPY10:%[0-9]+]]:_(s32) = COPY [[COPY2]](s32)
    ; CHECK: [[COPY11:%[0-9]+]]:_(s32) = COPY [[COPY3]](s32)
    ; CHECK: [[COPY12:%[0-9]+]]:_(s32) = COPY [[COPY8]](s32)
    ; CHECK: [[SEXT_INREG:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY12]], 8
    ; CHECK: [[COPY13:%[0-9]+]]:_(s32) = COPY [[COPY9]](s32)
    ; CHECK: [[SEXT_INREG1:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY13]], 8
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
    ; CHECK: [[COPY14:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG]](s32)
    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY14]], [[C]]
    ; CHECK: [[COPY15:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG1]](s32)
    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY15]], [[C]]
    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND1]], [[C1]](s32)
    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND]], [[SHL]]
    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR]](s32)
    ; CHECK: [[COPY16:%[0-9]+]]:_(s32) = COPY [[COPY10]](s32)
    ; CHECK: [[SEXT_INREG2:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY16]], 8
    ; CHECK: [[COPY17:%[0-9]+]]:_(s32) = COPY [[COPY11]](s32)
    ; CHECK: [[SEXT_INREG3:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY17]], 8
    ; CHECK: [[COPY18:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG2]](s32)
    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY18]], [[C]]
    ; CHECK: [[COPY19:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG3]](s32)
    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[COPY19]], [[C]]
    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[AND3]], [[C1]](s32)
    ; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[AND2]], [[SHL1]]
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR1]](s32)
    ; CHECK: [[COPY20:%[0-9]+]]:_(s32) = COPY [[COPY4]](s32)
    ; CHECK: [[COPY21:%[0-9]+]]:_(s32) = COPY [[COPY5]](s32)
    ; CHECK: [[COPY22:%[0-9]+]]:_(s32) = COPY [[COPY6]](s32)
    ; CHECK: [[COPY23:%[0-9]+]]:_(s32) = COPY [[COPY7]](s32)
    ; CHECK: [[COPY24:%[0-9]+]]:_(s32) = COPY [[COPY20]](s32)
    ; CHECK: [[SEXT_INREG4:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY24]], 8
    ; CHECK: [[COPY25:%[0-9]+]]:_(s32) = COPY [[COPY21]](s32)
    ; CHECK: [[SEXT_INREG5:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY25]], 8
    ; CHECK: [[COPY26:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG4]](s32)
    ; CHECK: [[AND4:%[0-9]+]]:_(s32) = G_AND [[COPY26]], [[C]]
    ; CHECK: [[COPY27:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG5]](s32)
    ; CHECK: [[AND5:%[0-9]+]]:_(s32) = G_AND [[COPY27]], [[C]]
    ; CHECK: [[SHL2:%[0-9]+]]:_(s32) = G_SHL [[AND5]], [[C1]](s32)
    ; CHECK: [[OR2:%[0-9]+]]:_(s32) = G_OR [[AND4]], [[SHL2]]
    ; CHECK: [[BITCAST2:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR2]](s32)
    ; CHECK: [[COPY28:%[0-9]+]]:_(s32) = COPY [[COPY22]](s32)
    ; CHECK: [[SEXT_INREG6:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY28]], 8
    ; CHECK: [[COPY29:%[0-9]+]]:_(s32) = COPY [[COPY23]](s32)
    ; CHECK: [[SEXT_INREG7:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY29]], 8
    ; CHECK: [[COPY30:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG6]](s32)
    ; CHECK: [[AND6:%[0-9]+]]:_(s32) = G_AND [[COPY30]], [[C]]
    ; CHECK: [[COPY31:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG7]](s32)
    ; CHECK: [[AND7:%[0-9]+]]:_(s32) = G_AND [[COPY31]], [[C]]
    ; CHECK: [[SHL3:%[0-9]+]]:_(s32) = G_SHL [[AND7]], [[C1]](s32)
    ; CHECK: [[OR3:%[0-9]+]]:_(s32) = G_OR [[AND6]], [[SHL3]]
    ; CHECK: [[BITCAST3:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR3]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<2 x s16>), implicit [[BITCAST1]](<2 x s16>), implicit [[BITCAST2]](<2 x s16>), implicit [[BITCAST3]](<2 x 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:_(s32) = COPY $vgpr6
    %7:_(s32) = COPY $vgpr7
    %8:_(s8) = G_TRUNC %0
    %9:_(s8) = G_TRUNC %1
    %10:_(s8) = G_TRUNC %2
    %11:_(s8) = G_TRUNC %3
    %12:_(s8) = G_TRUNC %4
    %13:_(s8) = G_TRUNC %5
    %14:_(s8) = G_TRUNC %6
    %15:_(s8) = G_TRUNC %7
    %16:_(<4 x s8>) = G_BUILD_VECTOR %8, %9, %10, %11
    %17:_(<4 x s8>) = G_BUILD_VECTOR %12, %13, %14, %15
    %18:_(<8 x s8>) = G_CONCAT_VECTORS %16, %17
    %19:_(<8 x s16>) = G_SEXT %18
    %20:_(<2 x s16>), %21:_(<2 x s16>), %22:_(<2 x s16>), %23:_(<2 x s16>) = G_UNMERGE_VALUES %19
    S_ENDPGM 0, implicit %20, implicit %21, implicit %22, implicit %23
...

---
name:            unmerge_v2s16_from_v16s16_sext_v16s8_concat_vectors_v8s8
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7, $vgpr8, $vgpr9, $vgpr10, $vgpr11, $vgpr12, $vgpr13, $vgpr14, $vgpr15

    ; CHECK-LABEL: name: unmerge_v2s16_from_v16s16_sext_v16s8_concat_vectors_v8s8
    ; CHECK: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7, $vgpr8, $vgpr9, $vgpr10, $vgpr11, $vgpr12, $vgpr13, $vgpr14, $vgpr15
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY $vgpr4
    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY $vgpr5
    ; CHECK: [[COPY6:%[0-9]+]]:_(s32) = COPY $vgpr6
    ; CHECK: [[COPY7:%[0-9]+]]:_(s32) = COPY $vgpr7
    ; CHECK: [[COPY8:%[0-9]+]]:_(s32) = COPY $vgpr8
    ; CHECK: [[COPY9:%[0-9]+]]:_(s32) = COPY $vgpr9
    ; CHECK: [[COPY10:%[0-9]+]]:_(s32) = COPY $vgpr10
    ; CHECK: [[COPY11:%[0-9]+]]:_(s32) = COPY $vgpr11
    ; CHECK: [[COPY12:%[0-9]+]]:_(s32) = COPY $vgpr12
    ; CHECK: [[COPY13:%[0-9]+]]:_(s32) = COPY $vgpr13
    ; CHECK: [[COPY14:%[0-9]+]]:_(s32) = COPY $vgpr14
    ; CHECK: [[COPY15:%[0-9]+]]:_(s32) = COPY $vgpr15
    ; CHECK: [[COPY16:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
    ; CHECK: [[COPY17:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
    ; CHECK: [[COPY18:%[0-9]+]]:_(s32) = COPY [[COPY2]](s32)
    ; CHECK: [[COPY19:%[0-9]+]]:_(s32) = COPY [[COPY3]](s32)
    ; CHECK: [[COPY20:%[0-9]+]]:_(s32) = COPY [[COPY4]](s32)
    ; CHECK: [[COPY21:%[0-9]+]]:_(s32) = COPY [[COPY5]](s32)
    ; CHECK: [[COPY22:%[0-9]+]]:_(s32) = COPY [[COPY6]](s32)
    ; CHECK: [[COPY23:%[0-9]+]]:_(s32) = COPY [[COPY7]](s32)
    ; CHECK: [[COPY24:%[0-9]+]]:_(s32) = COPY [[COPY16]](s32)
    ; CHECK: [[SEXT_INREG:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY24]], 8
    ; CHECK: [[COPY25:%[0-9]+]]:_(s32) = COPY [[COPY17]](s32)
    ; CHECK: [[SEXT_INREG1:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY25]], 8
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
    ; CHECK: [[COPY26:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG]](s32)
    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY26]], [[C]]
    ; CHECK: [[COPY27:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG1]](s32)
    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY27]], [[C]]
    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND1]], [[C1]](s32)
    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND]], [[SHL]]
    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR]](s32)
    ; CHECK: [[COPY28:%[0-9]+]]:_(s32) = COPY [[COPY18]](s32)
    ; CHECK: [[SEXT_INREG2:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY28]], 8
    ; CHECK: [[COPY29:%[0-9]+]]:_(s32) = COPY [[COPY19]](s32)
    ; CHECK: [[SEXT_INREG3:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY29]], 8
    ; CHECK: [[COPY30:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG2]](s32)
    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY30]], [[C]]
    ; CHECK: [[COPY31:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG3]](s32)
    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[COPY31]], [[C]]
    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[AND3]], [[C1]](s32)
    ; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[AND2]], [[SHL1]]
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR1]](s32)
    ; CHECK: [[COPY32:%[0-9]+]]:_(s32) = COPY [[COPY20]](s32)
    ; CHECK: [[SEXT_INREG4:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY32]], 8
    ; CHECK: [[COPY33:%[0-9]+]]:_(s32) = COPY [[COPY21]](s32)
    ; CHECK: [[SEXT_INREG5:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY33]], 8
    ; CHECK: [[COPY34:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG4]](s32)
    ; CHECK: [[AND4:%[0-9]+]]:_(s32) = G_AND [[COPY34]], [[C]]
    ; CHECK: [[COPY35:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG5]](s32)
    ; CHECK: [[AND5:%[0-9]+]]:_(s32) = G_AND [[COPY35]], [[C]]
    ; CHECK: [[SHL2:%[0-9]+]]:_(s32) = G_SHL [[AND5]], [[C1]](s32)
    ; CHECK: [[OR2:%[0-9]+]]:_(s32) = G_OR [[AND4]], [[SHL2]]
    ; CHECK: [[BITCAST2:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR2]](s32)
    ; CHECK: [[COPY36:%[0-9]+]]:_(s32) = COPY [[COPY22]](s32)
    ; CHECK: [[SEXT_INREG6:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY36]], 8
    ; CHECK: [[COPY37:%[0-9]+]]:_(s32) = COPY [[COPY23]](s32)
    ; CHECK: [[SEXT_INREG7:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY37]], 8
    ; CHECK: [[COPY38:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG6]](s32)
    ; CHECK: [[AND6:%[0-9]+]]:_(s32) = G_AND [[COPY38]], [[C]]
    ; CHECK: [[COPY39:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG7]](s32)
    ; CHECK: [[AND7:%[0-9]+]]:_(s32) = G_AND [[COPY39]], [[C]]
    ; CHECK: [[SHL3:%[0-9]+]]:_(s32) = G_SHL [[AND7]], [[C1]](s32)
    ; CHECK: [[OR3:%[0-9]+]]:_(s32) = G_OR [[AND6]], [[SHL3]]
    ; CHECK: [[BITCAST3:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR3]](s32)
    ; CHECK: [[COPY40:%[0-9]+]]:_(s32) = COPY [[COPY8]](s32)
    ; CHECK: [[COPY41:%[0-9]+]]:_(s32) = COPY [[COPY9]](s32)
    ; CHECK: [[COPY42:%[0-9]+]]:_(s32) = COPY [[COPY10]](s32)
    ; CHECK: [[COPY43:%[0-9]+]]:_(s32) = COPY [[COPY11]](s32)
    ; CHECK: [[COPY44:%[0-9]+]]:_(s32) = COPY [[COPY12]](s32)
    ; CHECK: [[COPY45:%[0-9]+]]:_(s32) = COPY [[COPY13]](s32)
    ; CHECK: [[COPY46:%[0-9]+]]:_(s32) = COPY [[COPY14]](s32)
    ; CHECK: [[COPY47:%[0-9]+]]:_(s32) = COPY [[COPY15]](s32)
    ; CHECK: [[COPY48:%[0-9]+]]:_(s32) = COPY [[COPY40]](s32)
    ; CHECK: [[SEXT_INREG8:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY48]], 8
    ; CHECK: [[COPY49:%[0-9]+]]:_(s32) = COPY [[COPY41]](s32)
    ; CHECK: [[SEXT_INREG9:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY49]], 8
    ; CHECK: [[COPY50:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG8]](s32)
    ; CHECK: [[AND8:%[0-9]+]]:_(s32) = G_AND [[COPY50]], [[C]]
    ; CHECK: [[COPY51:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG9]](s32)
    ; CHECK: [[AND9:%[0-9]+]]:_(s32) = G_AND [[COPY51]], [[C]]
    ; CHECK: [[SHL4:%[0-9]+]]:_(s32) = G_SHL [[AND9]], [[C1]](s32)
    ; CHECK: [[OR4:%[0-9]+]]:_(s32) = G_OR [[AND8]], [[SHL4]]
    ; CHECK: [[BITCAST4:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR4]](s32)
    ; CHECK: [[COPY52:%[0-9]+]]:_(s32) = COPY [[COPY42]](s32)
    ; CHECK: [[SEXT_INREG10:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY52]], 8
    ; CHECK: [[COPY53:%[0-9]+]]:_(s32) = COPY [[COPY43]](s32)
    ; CHECK: [[SEXT_INREG11:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY53]], 8
    ; CHECK: [[COPY54:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG10]](s32)
    ; CHECK: [[AND10:%[0-9]+]]:_(s32) = G_AND [[COPY54]], [[C]]
    ; CHECK: [[COPY55:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG11]](s32)
    ; CHECK: [[AND11:%[0-9]+]]:_(s32) = G_AND [[COPY55]], [[C]]
    ; CHECK: [[SHL5:%[0-9]+]]:_(s32) = G_SHL [[AND11]], [[C1]](s32)
    ; CHECK: [[OR5:%[0-9]+]]:_(s32) = G_OR [[AND10]], [[SHL5]]
    ; CHECK: [[BITCAST5:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR5]](s32)
    ; CHECK: [[COPY56:%[0-9]+]]:_(s32) = COPY [[COPY44]](s32)
    ; CHECK: [[SEXT_INREG12:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY56]], 8
    ; CHECK: [[COPY57:%[0-9]+]]:_(s32) = COPY [[COPY45]](s32)
    ; CHECK: [[SEXT_INREG13:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY57]], 8
    ; CHECK: [[COPY58:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG12]](s32)
    ; CHECK: [[AND12:%[0-9]+]]:_(s32) = G_AND [[COPY58]], [[C]]
    ; CHECK: [[COPY59:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG13]](s32)
    ; CHECK: [[AND13:%[0-9]+]]:_(s32) = G_AND [[COPY59]], [[C]]
    ; CHECK: [[SHL6:%[0-9]+]]:_(s32) = G_SHL [[AND13]], [[C1]](s32)
    ; CHECK: [[OR6:%[0-9]+]]:_(s32) = G_OR [[AND12]], [[SHL6]]
    ; CHECK: [[BITCAST6:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR6]](s32)
    ; CHECK: [[COPY60:%[0-9]+]]:_(s32) = COPY [[COPY46]](s32)
    ; CHECK: [[SEXT_INREG14:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY60]], 8
    ; CHECK: [[COPY61:%[0-9]+]]:_(s32) = COPY [[COPY47]](s32)
    ; CHECK: [[SEXT_INREG15:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY61]], 8
    ; CHECK: [[COPY62:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG14]](s32)
    ; CHECK: [[AND14:%[0-9]+]]:_(s32) = G_AND [[COPY62]], [[C]]
    ; CHECK: [[COPY63:%[0-9]+]]:_(s32) = COPY [[SEXT_INREG15]](s32)
    ; CHECK: [[AND15:%[0-9]+]]:_(s32) = G_AND [[COPY63]], [[C]]
    ; CHECK: [[SHL7:%[0-9]+]]:_(s32) = G_SHL [[AND15]], [[C1]](s32)
    ; CHECK: [[OR7:%[0-9]+]]:_(s32) = G_OR [[AND14]], [[SHL7]]
    ; CHECK: [[BITCAST7:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR7]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<2 x s16>), implicit [[BITCAST1]](<2 x s16>), implicit [[BITCAST2]](<2 x s16>), implicit [[BITCAST3]](<2 x s16>), implicit [[BITCAST4]](<2 x s16>), implicit [[BITCAST5]](<2 x s16>), implicit [[BITCAST6]](<2 x s16>), implicit [[BITCAST7]](<2 x 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:_(s32) = COPY $vgpr6
    %7:_(s32) = COPY $vgpr7
    %8:_(s32) = COPY $vgpr8
    %9:_(s32) = COPY $vgpr9
    %10:_(s32) = COPY $vgpr10
    %11:_(s32) = COPY $vgpr11
    %12:_(s32) = COPY $vgpr12
    %13:_(s32) = COPY $vgpr13
    %14:_(s32) = COPY $vgpr14
    %15:_(s32) = COPY $vgpr15
    %16:_(s8) = G_TRUNC %0
    %17:_(s8) = G_TRUNC %1
    %18:_(s8) = G_TRUNC %2
    %19:_(s8) = G_TRUNC %3
    %20:_(s8) = G_TRUNC %4
    %21:_(s8) = G_TRUNC %5
    %22:_(s8) = G_TRUNC %6
    %23:_(s8) = G_TRUNC %7
    %24:_(s8) = G_TRUNC %8
    %25:_(s8) = G_TRUNC %9
    %26:_(s8) = G_TRUNC %10
    %27:_(s8) = G_TRUNC %11
    %28:_(s8) = G_TRUNC %12
    %29:_(s8) = G_TRUNC %13
    %30:_(s8) = G_TRUNC %14
    %31:_(s8) = G_TRUNC %15
    %32:_(<8 x s8>) = G_BUILD_VECTOR %16, %17, %18, %19, %20, %21, %22, %23
    %33:_(<8 x s8>) = G_BUILD_VECTOR %24, %25, %26, %27, %28, %29, %30, %31
    %34:_(<16 x s8>) = G_CONCAT_VECTORS %32, %33
    %35:_(<16 x s16>) = G_SEXT %34
    %36:_(<2 x s16>), %37:_(<2 x s16>), %38:_(<2 x s16>), %39:_(<2 x s16>), %40:_(<2 x s16>), %41:_(<2 x s16>), %42:_(<2 x s16>), %43:_(<2 x s16>) = G_UNMERGE_VALUES %35
    S_ENDPGM 0, implicit %36, implicit %37, implicit %38, implicit %39, implicit %40, implicit %41, implicit %42, implicit %43
...

---
name: test_unmerge_values_s32_trunc_s96_of_merge_values_s192_s64
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1, $vgpr2_vgpr3, $vgpr4_vgpr5
    ; CHECK-LABEL: name: test_unmerge_values_s32_trunc_s96_of_merge_values_s192_s64
    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $vgpr2_vgpr3
    ; CHECK: [[COPY2:%[0-9]+]]:_(s64) = COPY $vgpr4_vgpr5
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](s64)
    ; CHECK: S_ENDPGM 0, implicit [[UV]](s32), implicit [[UV1]](s32), implicit [[UV2]](s32)
    %0:_(s64) = COPY $vgpr0_vgpr1
    %1:_(s64) = COPY $vgpr2_vgpr3
    %2:_(s64) = COPY $vgpr4_vgpr5
    %3:_(s192) = G_MERGE_VALUES %0, %1, %2
    %4:_(s96) = G_TRUNC %3
    %5:_(s32), %6:_(s32), %7:_(s32) = G_UNMERGE_VALUES %4
    S_ENDPGM 0, implicit %5, implicit %6, implicit %7

...

---
name: test_unmerge_values_s16_trunc_s96_of_merge_values_s192_s64
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1, $vgpr2_vgpr3, $vgpr4_vgpr5
    ; CHECK-LABEL: name: test_unmerge_values_s16_trunc_s96_of_merge_values_s192_s64
    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $vgpr2_vgpr3
    ; CHECK: [[COPY2:%[0-9]+]]:_(s64) = COPY $vgpr4_vgpr5
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV]](s32)
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[UV1]](s32)
    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR1]](s32)
    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](s64)
    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[UV2]](s32)
    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR2]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](s16), implicit [[TRUNC1]](s16), implicit [[TRUNC2]](s16), implicit [[TRUNC3]](s16), implicit [[TRUNC4]](s16), implicit [[TRUNC5]](s16)
    %0:_(s64) = COPY $vgpr0_vgpr1
    %1:_(s64) = COPY $vgpr2_vgpr3
    %2:_(s64) = COPY $vgpr4_vgpr5
    %3:_(s192) = G_MERGE_VALUES %0, %1, %2
    %4:_(s96) = G_TRUNC %3
    %5:_(s16), %6:_(s16), %7:_(s16),  %8:_(s16), %9:_(s16), %10:_(s16) = G_UNMERGE_VALUES %4
    S_ENDPGM 0, implicit %5, implicit %6, implicit %7, implicit %8, implicit %9, implicit %10

...

---
name: test_unmerge_values_s16_trunc_s96_of_merge_values_s192_s32
body:             |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5
    ; CHECK-LABEL: name: test_unmerge_values_s16_trunc_s96_of_merge_values_s192_s32
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY $vgpr4
    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY $vgpr5
    ; CHECK: [[MV:%[0-9]+]]:_(s192) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32), [[COPY5]](s32)
    ; CHECK: [[MV1:%[0-9]+]]:_(s96) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32), [[COPY2]](s32)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY]], [[C]](s32)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[COPY1]](s32)
    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[COPY1]], [[C]](s32)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR1]](s32)
    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[COPY2]](s32)
    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[COPY2]], [[C]](s32)
    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR2]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[MV]](s192), implicit [[MV1]](s96), implicit [[TRUNC]](s16), implicit [[TRUNC1]](s16), implicit [[TRUNC2]](s16), implicit [[TRUNC3]](s16), implicit [[TRUNC4]](s16), implicit [[TRUNC5]](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:_(s192) = G_MERGE_VALUES %0, %1, %2, %3, %4, %5
    %7:_(s96) = G_TRUNC %6
    %8:_(s16), %9:_(s16), %10:_(s16),  %11:_(s16), %12:_(s16), %13:_(s16) = G_UNMERGE_VALUES %7
    S_ENDPGM 0, implicit %6, implicit %7, implicit %8, implicit %9, implicit %10, implicit %11, implicit %12, implicit %13

...

---
name: test_unmerge_values_s64_anyext_s128_of_merge_values_s64
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s64_anyext_s128_of_merge_values_s64
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
    ; CHECK: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32)
    ; CHECK: [[DEF:%[0-9]+]]:_(s64) = G_IMPLICIT_DEF
    ; CHECK: $vgpr0_vgpr1 = COPY [[MV]](s64)
    ; CHECK: $vgpr2_vgpr3 = COPY [[DEF]](s64)
    %0:_(s32) = COPY $vgpr0
    %1:_(s32) = COPY $vgpr1
    %2:_(s64) = G_MERGE_VALUES %0, %1
    %3:_(s128) = G_ANYEXT %2
    %4:_(s64), %5:_(s64) = G_UNMERGE_VALUES %3
    $vgpr0_vgpr1 = COPY %4
    $vgpr2_vgpr3 = COPY %5

...

---
name: test_unmerge_values_s32_trunc_s64_of_merge_values_s128
body:             |
  bb.0:
    ; CHECK-LABEL: name: test_unmerge_values_s32_trunc_s64_of_merge_values_s128
    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
    ; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $vgpr2_vgpr3
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
    ; CHECK: $vgpr0 = COPY [[UV]](s32)
    ; CHECK: $vgpr1 = COPY [[UV1]](s32)
    %0:_(s64) = COPY $vgpr0_vgpr1
    %1:_(s64) = COPY $vgpr2_vgpr3
    %2:_(s128) = G_MERGE_VALUES %0, %1
    %3:_(s64) = G_TRUNC %2
    %4:_(s32), %5:_(s32) = G_UNMERGE_VALUES %3
    $vgpr0 = COPY %4
    $vgpr1 = COPY %5
...

---
name: test_unmerge_values_s8_v4s8_trunc_v4s32
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2_vgpr3

    ; CHECK-LABEL: name: test_unmerge_values_s8_v4s8_trunc_v4s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[UV]](s32)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[UV1]](s32)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[UV2]](s32)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[UV3]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](s8), implicit [[TRUNC1]](s8), implicit [[TRUNC2]](s8), implicit [[TRUNC3]](s8)
    %0:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    %1:_(<4 x s8>) = G_TRUNC %0
    %2:_(s8), %3:_(s8), %4:_(s8), %5:_(s8) = G_UNMERGE_VALUES %1
    S_ENDPGM 0, implicit %2, implicit %3, implicit %4, implicit %5

...

---
name: test_unmerge_values_v2s8_v4s8_trunc_v4s32
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2_vgpr3

    ; CHECK-LABEL: name: test_unmerge_values_v2s8_v4s8_trunc_v4s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    ; CHECK: [[UV:%[0-9]+]]:_(<2 x s32>), [[UV1:%[0-9]+]]:_(<2 x s32>) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[UV]](<2 x s32>)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[UV1]](<2 x s32>)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](<2 x s16>), implicit [[TRUNC1]](<2 x s16>)
    %0:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    %1:_(<4 x s8>) = G_TRUNC %0
    %2:_(<2 x s8>), %3:_(<2 x s8>) = G_UNMERGE_VALUES %1
    %4:_(<2 x s16>) = G_ANYEXT %2
    %5:_(<2 x s16>) = G_ANYEXT %3
    S_ENDPGM 0, implicit %4, implicit %5

...

---
name: test_unmerge_values_v4s8_v8s8_trunc_v8s32
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7

    ; CHECK-LABEL: name: test_unmerge_values_v4s8_v8s8_trunc_v8s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<8 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    ; CHECK: [[UV:%[0-9]+]]:_(<4 x s32>), [[UV1:%[0-9]+]]:_(<4 x s32>) = G_UNMERGE_VALUES [[COPY]](<8 x s32>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[UV]](<4 x s32>)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[UV1]](<4 x s32>)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](<4 x s8>), implicit [[TRUNC1]](<4 x s8>)
    %0:_(<8 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    %1:_(<8 x s8>) = G_TRUNC %0
    %2:_(<4 x s8>), %3:_(<4 x s8>) = G_UNMERGE_VALUES %1
    S_ENDPGM 0, implicit %2, implicit %3

...

---

name: test_unmerge_values_s16_v4s16_trunc_v4s32
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2_vgpr3

    ; CHECK-LABEL: name: test_unmerge_values_s16_v4s16_trunc_v4s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV]](s32)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[UV1]](s32)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[UV2]](s32)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[UV3]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](s16), implicit [[TRUNC1]](s16), implicit [[TRUNC2]](s16), implicit [[TRUNC3]](s16)
    %0:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    %1:_(<4 x s16>) = G_TRUNC %0
    %2:_(s16), %3:_(s16), %4:_(s16), %5:_(s16) = G_UNMERGE_VALUES %1
    S_ENDPGM 0, implicit %2, implicit %3, implicit %4, implicit %5

...

---
name: test_unmerge_values_v2s16_v4s16_trunc_v4s32
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2_vgpr3

    ; CHECK-LABEL: name: test_unmerge_values_v2s16_v4s16_trunc_v4s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    ; CHECK: [[UV:%[0-9]+]]:_(<2 x s32>), [[UV1:%[0-9]+]]:_(<2 x s32>) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[UV]](<2 x s32>)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[UV1]](<2 x s32>)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](<2 x s16>), implicit [[TRUNC1]](<2 x s16>)
    %0:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
    %1:_(<4 x s16>) = G_TRUNC %0
    %2:_(<2 x s16>), %3:_(<2 x s16>) = G_UNMERGE_VALUES %1
    S_ENDPGM 0, implicit %2, implicit %3

...

---
name: test_unmerge_values_v2s16_v8s16_trunc_v8s32
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7

    ; CHECK-LABEL: name: test_unmerge_values_v2s16_v8s16_trunc_v8s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<8 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    ; CHECK: [[UV:%[0-9]+]]:_(<2 x s32>), [[UV1:%[0-9]+]]:_(<2 x s32>), [[UV2:%[0-9]+]]:_(<2 x s32>), [[UV3:%[0-9]+]]:_(<2 x s32>) = G_UNMERGE_VALUES [[COPY]](<8 x s32>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[UV]](<2 x s32>)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[UV1]](<2 x s32>)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[UV2]](<2 x s32>)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[UV3]](<2 x s32>)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](<2 x s16>), implicit [[TRUNC1]](<2 x s16>), implicit [[TRUNC2]](<2 x s16>), implicit [[TRUNC3]](<2 x s16>)
    %0:_(<8 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    %1:_(<8 x s16>) = G_TRUNC %0
    %2:_(<2 x s16>), %3:_(<2 x s16>), %4:_(<2 x s16>), %5:_(<2 x s16>) = G_UNMERGE_VALUES %1
    S_ENDPGM 0, implicit %2, implicit %3, implicit %4, implicit %5

...

---
name: test_unmerge_values_v4s16_v8s16_trunc_v8s32
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7

    ; CHECK-LABEL: name: test_unmerge_values_v4s16_v8s16_trunc_v8s32
    ; CHECK: [[COPY:%[0-9]+]]:_(<8 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    ; CHECK: [[UV:%[0-9]+]]:_(<4 x s32>), [[UV1:%[0-9]+]]:_(<4 x s32>) = G_UNMERGE_VALUES [[COPY]](<8 x s32>)
    ; CHECK: [[UV2:%[0-9]+]]:_(<2 x s32>), [[UV3:%[0-9]+]]:_(<2 x s32>) = G_UNMERGE_VALUES [[UV]](<4 x s32>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[UV2]](<2 x s32>)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[UV3]](<2 x s32>)
    ; CHECK: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[TRUNC]](<2 x s16>), [[TRUNC1]](<2 x s16>)
    ; CHECK: [[UV4:%[0-9]+]]:_(<2 x s32>), [[UV5:%[0-9]+]]:_(<2 x s32>) = G_UNMERGE_VALUES [[UV1]](<4 x s32>)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[UV4]](<2 x s32>)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_TRUNC [[UV5]](<2 x s32>)
    ; CHECK: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[TRUNC2]](<2 x s16>), [[TRUNC3]](<2 x s16>)
    ; CHECK: S_ENDPGM 0, implicit [[CONCAT_VECTORS]](<4 x s16>), implicit [[CONCAT_VECTORS1]](<4 x s16>)
    %0:_(<8 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    %1:_(<8 x s16>) = G_TRUNC %0
    %2:_(<4 x s16>), %3:_(<4 x s16>) = G_UNMERGE_VALUES %1
    S_ENDPGM 0, implicit %2, implicit %3

...

---
name: test_unmerge_values_s8_v4s8_trunc_v4s16
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1

    ; CHECK-LABEL: name: test_unmerge_values_s8_v4s8_trunc_v4s16
    ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr0_vgpr1
    ; CHECK: [[UV:%[0-9]+]]:_(<2 x s16>), [[UV1:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY]](<4 x s16>)
    ; CHECK: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[UV]](<2 x s16>)
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[UV1]](<2 x s16>)
    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[BITCAST]](s32)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[LSHR]](s32)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[BITCAST1]](s32)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[LSHR1]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](s8), implicit [[TRUNC1]](s8), implicit [[TRUNC2]](s8), implicit [[TRUNC3]](s8)
    %0:_(<4 x s16>) = COPY $vgpr0_vgpr1
    %1:_(<4 x s8>) = G_TRUNC %0
    %2:_(s8), %3:_(s8), %4:_(s8), %5:_(s8) = G_UNMERGE_VALUES %1
    S_ENDPGM 0, implicit %2, implicit %3, implicit %4, implicit %5

...

---
name: test_unmerge_values_v2s8_v4s8_trunc_v4s16
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1

    ; CHECK-LABEL: name: test_unmerge_values_v2s8_v4s8_trunc_v4s16
    ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr0_vgpr1
    ; CHECK: [[UV:%[0-9]+]]:_(<2 x s16>), [[UV1:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY]](<4 x s16>)
    ; CHECK: [[COPY1:%[0-9]+]]:_(<2 x s16>) = COPY [[UV]](<2 x s16>)
    ; CHECK: [[COPY2:%[0-9]+]]:_(<2 x s16>) = COPY [[UV1]](<2 x s16>)
    ; CHECK: S_ENDPGM 0, implicit [[COPY1]](<2 x s16>), implicit [[COPY2]](<2 x s16>)
    %0:_(<4 x s16>) = COPY $vgpr0_vgpr1
    %1:_(<4 x s8>) = G_TRUNC %0
    %2:_(<2 x s8>), %3:_(<2 x s8>) = G_UNMERGE_VALUES %1
    %4:_(<2 x s16>) = G_ANYEXT %2
    %5:_(<2 x s16>) = G_ANYEXT %3
    S_ENDPGM 0, implicit %4, implicit %5

...

---
name: test_unmerge_values_s32_v4s32_trunc_v4s64
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7

    ; CHECK-LABEL: name: test_unmerge_values_s32_v4s32_trunc_v4s64
    ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    ; CHECK: [[UV:%[0-9]+]]:_(s64), [[UV1:%[0-9]+]]:_(s64), [[UV2:%[0-9]+]]:_(s64), [[UV3:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[COPY]](<4 x s64>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[UV]](s64)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[UV1]](s64)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s32) = G_TRUNC [[UV2]](s64)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s32) = G_TRUNC [[UV3]](s64)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](s32), implicit [[TRUNC1]](s32), implicit [[TRUNC2]](s32), implicit [[TRUNC3]](s32)
    %0:_(<4 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    %1:_(<4 x s32>) = G_TRUNC %0
    %2:_(s32), %3:_(s32), %4:_(s32), %5:_(s32) = G_UNMERGE_VALUES %1
    S_ENDPGM 0, implicit %2, implicit %3, implicit %4, implicit %5

...

---
name: test_unmerge_values_v2s32_v4s32_trunc_v4s64
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7

    ; CHECK-LABEL: name: test_unmerge_values_v2s32_v4s32_trunc_v4s64
    ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    ; CHECK: [[UV:%[0-9]+]]:_(<2 x s64>), [[UV1:%[0-9]+]]:_(<2 x s64>) = G_UNMERGE_VALUES [[COPY]](<4 x s64>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s64), [[UV3:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[UV]](<2 x s64>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[UV2]](s64)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[UV3]](s64)
    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[TRUNC]](s32), [[TRUNC1]](s32)
    ; CHECK: [[UV4:%[0-9]+]]:_(s64), [[UV5:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[UV1]](<2 x s64>)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s32) = G_TRUNC [[UV4]](s64)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s32) = G_TRUNC [[UV5]](s64)
    ; CHECK: [[BUILD_VECTOR1:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[TRUNC2]](s32), [[TRUNC3]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[BUILD_VECTOR]](<2 x s32>), implicit [[BUILD_VECTOR1]](<2 x s32>)
    %0:_(<4 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    %1:_(<4 x s32>) = G_TRUNC %0
    %2:_(<2 x s32>), %3:_(<2 x s32>) = G_UNMERGE_VALUES %1
    S_ENDPGM 0, implicit %2, implicit %3

...

---
name: test_unmerge_values_s16_v4s16_trunc_v4s64
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7

    ; CHECK-LABEL: name: test_unmerge_values_s16_v4s16_trunc_v4s64
    ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    ; CHECK: [[UV:%[0-9]+]]:_(s64), [[UV1:%[0-9]+]]:_(s64), [[UV2:%[0-9]+]]:_(s64), [[UV3:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[COPY]](<4 x s64>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV]](s64)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[UV1]](s64)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[UV2]](s64)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[UV3]](s64)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](s16), implicit [[TRUNC1]](s16), implicit [[TRUNC2]](s16), implicit [[TRUNC3]](s16)
    %0:_(<4 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    %1:_(<4 x s16>) = G_TRUNC %0
    %2:_(s16), %3:_(s16), %4:_(s16), %5:_(s16) = G_UNMERGE_VALUES %1
    S_ENDPGM 0, implicit %2, implicit %3, implicit %4, implicit %5

...

---
name: test_unmerge_values_v2s16_v4s16_trunc_v4s64
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7

    ; CHECK-LABEL: name: test_unmerge_values_v2s16_v4s16_trunc_v4s64
    ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    ; CHECK: [[UV:%[0-9]+]]:_(<2 x s64>), [[UV1:%[0-9]+]]:_(<2 x s64>) = G_UNMERGE_VALUES [[COPY]](<4 x s64>)
    ; CHECK: [[UV2:%[0-9]+]]:_(s64), [[UV3:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[UV]](<2 x s64>)
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[UV2]](s64)
    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[TRUNC]], [[C]]
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[UV3]](s64)
    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[TRUNC1]], [[C]]
    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND1]], [[C1]](s32)
    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND]], [[SHL]]
    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR]](s32)
    ; CHECK: [[UV4:%[0-9]+]]:_(s64), [[UV5:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[UV1]](<2 x s64>)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s32) = G_TRUNC [[UV4]](s64)
    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[TRUNC2]], [[C]]
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s32) = G_TRUNC [[UV5]](s64)
    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[TRUNC3]], [[C]]
    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[AND3]], [[C1]](s32)
    ; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[AND2]], [[SHL1]]
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR1]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<2 x s16>), implicit [[BITCAST1]](<2 x s16>)
    %0:_(<4 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
    %1:_(<4 x s16>) = G_TRUNC %0
    %2:_(<2 x s16>), %3:_(<2 x s16>) = G_UNMERGE_VALUES %1
    S_ENDPGM 0, implicit %2, implicit %3

...

---
name: test_unmerge_values_s16_from_v3s16_from_v6s16
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2

    ; CHECK-LABEL: name: test_unmerge_values_s16_from_v3s16_from_v6s16
    ; CHECK: [[COPY:%[0-9]+]]:_(<6 x s16>) = COPY $vgpr0_vgpr1_vgpr2
    ; CHECK: [[UV:%[0-9]+]]:_(<2 x s16>), [[UV1:%[0-9]+]]:_(<2 x s16>), [[UV2:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY]](<6 x s16>)
    ; CHECK: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[UV]](<2 x s16>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST]](s32)
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[UV1]](<2 x s16>)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST1]](s32)
    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
    ; CHECK: [[UV3:%[0-9]+]]:_(<2 x s16>), [[UV4:%[0-9]+]]:_(<2 x s16>), [[UV5:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY]](<6 x s16>)
    ; CHECK: [[BITCAST2:%[0-9]+]]:_(s32) = G_BITCAST [[UV4]](<2 x s16>)
    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST2]], [[C]](s32)
    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR2]](s32)
    ; CHECK: [[BITCAST3:%[0-9]+]]:_(s32) = G_BITCAST [[UV5]](<2 x s16>)
    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST3]](s32)
    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST3]], [[C]](s32)
    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR3]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](s16), implicit [[TRUNC1]](s16), implicit [[TRUNC2]](s16), implicit [[TRUNC3]](s16), implicit [[TRUNC4]](s16), implicit [[TRUNC5]](s16)
  %0:_(<6 x s16>) = COPY $vgpr0_vgpr1_vgpr2
  %1:_(<3 x s16>), %2:_(<3 x s16>) = G_UNMERGE_VALUES %0
  %3:_(s16), %4:_(s16), %5:_(s16) = G_UNMERGE_VALUES %1
  %6:_(s16), %7:_(s16), %8:_(s16) = G_UNMERGE_VALUES %2
  S_ENDPGM 0, implicit %3, implicit %4, implicit %5, implicit %6, implicit %7, implicit %8

...

---
name: test_unmerge_values_s16_from_v3s16_from_v6s16_other_def_use
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1_vgpr2

    ; CHECK-LABEL: name: test_unmerge_values_s16_from_v3s16_from_v6s16_other_def_use
    ; CHECK: [[COPY:%[0-9]+]]:_(<6 x s16>) = COPY $vgpr0_vgpr1_vgpr2
    ; CHECK: [[UV:%[0-9]+]]:_(<2 x s16>), [[UV1:%[0-9]+]]:_(<2 x s16>), [[UV2:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY]](<6 x s16>)
    ; CHECK: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[UV]](<2 x s16>)
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST]](s32)
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
    ; CHECK: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[UV1]](<2 x s16>)
    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST1]](s32)
    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
    ; CHECK: [[UV3:%[0-9]+]]:_(<2 x s16>), [[UV4:%[0-9]+]]:_(<2 x s16>), [[UV5:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY]](<6 x s16>)
    ; CHECK: [[BITCAST2:%[0-9]+]]:_(s32) = G_BITCAST [[UV4]](<2 x s16>)
    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST2]], [[C]](s32)
    ; CHECK: [[BITCAST3:%[0-9]+]]:_(s32) = G_BITCAST [[UV5]](<2 x s16>)
    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST3]], [[C]](s32)
    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[BITCAST3]](s32)
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<3 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32)
    ; CHECK: S_ENDPGM 0, implicit [[TRUNC]](s16), implicit [[TRUNC1]](s16), implicit [[TRUNC2]](s16), implicit [[BUILD_VECTOR]](<3 x s32>)
  %0:_(<6 x s16>) = COPY $vgpr0_vgpr1_vgpr2
  %1:_(<3 x s16>), %2:_(<3 x s16>) = G_UNMERGE_VALUES %0
  %3:_(s16), %4:_(s16), %5:_(s16) = G_UNMERGE_VALUES %1
  %6:_(<3 x s32>) = G_ANYEXT %2
  S_ENDPGM 0, implicit %3, implicit %4, implicit %5, implicit %6

...