llvm/test/CodeGen/AArch64/GlobalISel/select-unmerge.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py

# RUN: llc -O0 -mattr=-fullfp16 -mtriple=aarch64-- \
# RUN: -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=1 %s -o - | FileCheck %s

---
name:            test_v2s64_unmerge
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
registers:
  - { id: 0, class: fpr }
  - { id: 1, class: fpr }
  - { id: 2, class: fpr }
  - { id: 3, class: fpr }
body:             |
  bb.1:
    liveins: $q0
    ; CHECK-LABEL: name: test_v2s64_unmerge
    ; CHECK: liveins: $q0
    ; CHECK: [[COPY:%[0-9]+]]:fpr128 = COPY $q0
    ; CHECK: [[COPY1:%[0-9]+]]:fpr64 = COPY [[COPY]].dsub
    ; CHECK: [[CPYi64_:%[0-9]+]]:fpr64 = CPYi64 [[COPY]], 1
    ; CHECK: [[DEF:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF]], [[COPY1]], %subreg.dsub
    ; CHECK: [[DEF1:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG1:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF1]], [[CPYi64_]], %subreg.dsub
    ; CHECK: [[INSvi64lane:%[0-9]+]]:fpr128 = INSvi64lane [[INSERT_SUBREG]], 1, [[INSERT_SUBREG1]], 0
    ; CHECK: $q0 = COPY [[INSvi64lane]]
    ; CHECK: RET_ReallyLR implicit $q0
    %0:fpr(<2 x s64>) = COPY $q0

    ; Since 2 * 64 = 128, we can just directly copy.
    %2:fpr(s64), %3:fpr(s64) = G_UNMERGE_VALUES %0(<2 x s64>)

    %1:fpr(<2 x s64>) = G_BUILD_VECTOR %2(s64), %3(s64)
    $q0 = COPY %1(<2 x s64>)
    RET_ReallyLR implicit $q0
...
---
name:            test_v4s32_unmerge
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
registers:
  - { id: 0, class: fpr }
  - { id: 1, class: fpr }
  - { id: 2, class: fpr }
  - { id: 3, class: fpr }
  - { id: 4, class: fpr }
  - { id: 5, class: fpr }
body:             |
  bb.1:
    liveins: $q0
    ; CHECK-LABEL: name: test_v4s32_unmerge
    ; CHECK: liveins: $q0
    ; CHECK: [[COPY:%[0-9]+]]:fpr128 = COPY $q0
    ; CHECK: [[COPY1:%[0-9]+]]:fpr32 = COPY [[COPY]].ssub
    ; CHECK: [[CPYi32_:%[0-9]+]]:fpr32 = CPYi32 [[COPY]], 1
    ; CHECK: [[CPYi32_1:%[0-9]+]]:fpr32 = CPYi32 [[COPY]], 2
    ; CHECK: [[CPYi32_2:%[0-9]+]]:fpr32 = CPYi32 [[COPY]], 3
    ; CHECK: [[DEF:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF]], [[COPY1]], %subreg.ssub
    ; CHECK: [[DEF1:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG1:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF1]], [[CPYi32_]], %subreg.ssub
    ; CHECK: [[INSvi32lane:%[0-9]+]]:fpr128 = INSvi32lane [[INSERT_SUBREG]], 1, [[INSERT_SUBREG1]], 0
    ; CHECK: [[DEF2:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG2:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF2]], [[CPYi32_1]], %subreg.ssub
    ; CHECK: [[INSvi32lane1:%[0-9]+]]:fpr128 = INSvi32lane [[INSvi32lane]], 2, [[INSERT_SUBREG2]], 0
    ; CHECK: [[DEF3:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG3:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF3]], [[CPYi32_2]], %subreg.ssub
    ; CHECK: [[INSvi32lane2:%[0-9]+]]:fpr128 = INSvi32lane [[INSvi32lane1]], 3, [[INSERT_SUBREG3]], 0
    ; CHECK: $q0 = COPY [[INSvi32lane2]]
    ; CHECK: RET_ReallyLR implicit $q0
    %0:fpr(<4 x s32>) = COPY $q0

    ; Since 4 * 32 = 128, we can just directly copy.
    %2:fpr(s32), %3:fpr(s32), %4:fpr(s32), %5:fpr(s32) = G_UNMERGE_VALUES %0(<4 x s32>)

    %1:fpr(<4 x s32>) = G_BUILD_VECTOR %2(s32), %3(s32), %4(s32), %5(s32)
    $q0 = COPY %1(<4 x s32>)
    RET_ReallyLR implicit $q0
...
---
name:            test_v2s16_unmerge
legalized:       true
regBankSelected: true
tracksRegLiveness: true
registers:
  - { id: 0, class: fpr }
  - { id: 1, class: fpr }
  - { id: 2, class: fpr }
  - { id: 3, class: fpr }
  - { id: 4, class: fpr }
  - { id: 5, class: fpr }
body:             |
  bb.1:
    liveins: $s0

    ; CHECK-LABEL: name: test_v2s16_unmerge
    ; CHECK: liveins: $s0
    ; CHECK: [[COPY:%[0-9]+]]:fpr32 = COPY $s0
    ; CHECK: [[DEF:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF]], [[COPY]], %subreg.ssub
    ; CHECK: [[COPY1:%[0-9]+]]:fpr16 = COPY [[INSERT_SUBREG]].hsub
    ; CHECK: [[CPYi16_:%[0-9]+]]:fpr16 = CPYi16 [[INSERT_SUBREG]], 1
    ; CHECK: [[DEF1:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG1:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF1]], [[COPY1]], %subreg.hsub
    ; CHECK: [[DEF2:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG2:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF2]], [[CPYi16_]], %subreg.hsub
    ; CHECK: [[INSvi16lane:%[0-9]+]]:fpr128 = INSvi16lane [[INSERT_SUBREG1]], 1, [[INSERT_SUBREG2]], 0
    ; CHECK: [[COPY2:%[0-9]+]]:fpr32 = COPY [[INSvi16lane]].ssub
    ; CHECK: $s0 = COPY [[COPY2]]
    ; CHECK: RET_ReallyLR implicit $s0
    %0:fpr(<2 x s16>) = COPY $s0

    ; Since 2 * 16 != 128, we need to widen using implicit defs.
    ; Note that we expect to reuse one of the INSERT_SUBREG results, as CPYi16
    ; expects a lane > 0.
    %2:fpr(s16), %3:fpr(s16) = G_UNMERGE_VALUES %0(<2 x s16>)

    %1:fpr(<2 x s16>) = G_BUILD_VECTOR %2(s16), %3(s16)

    $s0 = COPY %1(<2 x s16>)

    RET_ReallyLR implicit $s0
...
---
name:            test_v4s16_unmerge
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
registers:
  - { id: 0, class: fpr }
  - { id: 1, class: fpr }
  - { id: 2, class: fpr }
  - { id: 3, class: fpr }
  - { id: 4, class: fpr }
  - { id: 5, class: fpr }
body:             |
  bb.1:
    liveins: $d0
    ; CHECK-LABEL: name: test_v4s16_unmerge
    ; CHECK: liveins: $d0
    ; CHECK: [[COPY:%[0-9]+]]:fpr64 = COPY $d0
    ; CHECK: [[DEF:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF]], [[COPY]], %subreg.dsub
    ; CHECK: [[DEF1:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG1:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF1]], [[COPY]], %subreg.dsub
    ; CHECK: [[DEF2:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG2:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF2]], [[COPY]], %subreg.dsub
    ; CHECK: [[COPY1:%[0-9]+]]:fpr16 = COPY [[INSERT_SUBREG]].hsub
    ; CHECK: [[CPYi16_:%[0-9]+]]:fpr16 = CPYi16 [[INSERT_SUBREG]], 1
    ; CHECK: [[CPYi16_1:%[0-9]+]]:fpr16 = CPYi16 [[INSERT_SUBREG1]], 2
    ; CHECK: [[CPYi16_2:%[0-9]+]]:fpr16 = CPYi16 [[INSERT_SUBREG2]], 3
    ; CHECK: [[DEF3:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG3:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF3]], [[COPY1]], %subreg.hsub
    ; CHECK: [[DEF4:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG4:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF4]], [[CPYi16_]], %subreg.hsub
    ; CHECK: [[INSvi16lane:%[0-9]+]]:fpr128 = INSvi16lane [[INSERT_SUBREG3]], 1, [[INSERT_SUBREG4]], 0
    ; CHECK: [[DEF5:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG5:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF5]], [[CPYi16_1]], %subreg.hsub
    ; CHECK: [[INSvi16lane1:%[0-9]+]]:fpr128 = INSvi16lane [[INSvi16lane]], 2, [[INSERT_SUBREG5]], 0
    ; CHECK: [[DEF6:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG6:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF6]], [[CPYi16_2]], %subreg.hsub
    ; CHECK: [[INSvi16lane2:%[0-9]+]]:fpr128 = INSvi16lane [[INSvi16lane1]], 3, [[INSERT_SUBREG6]], 0
    ; CHECK: [[COPY2:%[0-9]+]]:fpr64 = COPY [[INSvi16lane2]].dsub
    ; CHECK: $d0 = COPY [[COPY2]]
    ; CHECK: RET_ReallyLR implicit $d0
    %0:fpr(<4 x s16>) = COPY $d0

    ; Since 4 * 16 != 128, we need to widen using implicit defs.
    ; Note that we expect to reuse one of the INSERT_SUBREG results, as CPYi16
    ; expects a lane > 0.
    %2:fpr(s16), %3:fpr(s16), %4:fpr(s16), %5:fpr(s16) = G_UNMERGE_VALUES %0(<4 x s16>)

    %1:fpr(<4 x s16>) = G_BUILD_VECTOR %2(s16), %3(s16), %4(s16), %5(s16)
    $d0 = COPY %1(<4 x s16>)
    RET_ReallyLR implicit $d0
...
---
name:            test_v8s16_unmerge
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
registers:
  - { id: 0, class: fpr }
  - { id: 1, class: fpr }
  - { id: 2, class: fpr }
  - { id: 3, class: fpr }
  - { id: 4, class: fpr }
  - { id: 5, class: fpr }
  - { id: 6, class: fpr }
  - { id: 7, class: fpr }
  - { id: 8, class: fpr }
  - { id: 9, class: fpr }
body:             |
  bb.1:
    liveins: $q0
    ; CHECK-LABEL: name: test_v8s16_unmerge
    ; CHECK: liveins: $q0
    ; CHECK: [[COPY:%[0-9]+]]:fpr128 = COPY $q0
    ; CHECK: [[COPY1:%[0-9]+]]:fpr16 = COPY [[COPY]].hsub
    ; CHECK: [[CPYi16_:%[0-9]+]]:fpr16 = CPYi16 [[COPY]], 1
    ; CHECK: [[CPYi16_1:%[0-9]+]]:fpr16 = CPYi16 [[COPY]], 2
    ; CHECK: [[CPYi16_2:%[0-9]+]]:fpr16 = CPYi16 [[COPY]], 3
    ; CHECK: [[CPYi16_3:%[0-9]+]]:fpr16 = CPYi16 [[COPY]], 4
    ; CHECK: [[CPYi16_4:%[0-9]+]]:fpr16 = CPYi16 [[COPY]], 5
    ; CHECK: [[CPYi16_5:%[0-9]+]]:fpr16 = CPYi16 [[COPY]], 6
    ; CHECK: [[CPYi16_6:%[0-9]+]]:fpr16 = CPYi16 [[COPY]], 7
    ; CHECK: [[DEF:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF]], [[COPY1]], %subreg.hsub
    ; CHECK: [[DEF1:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG1:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF1]], [[CPYi16_]], %subreg.hsub
    ; CHECK: [[INSvi16lane:%[0-9]+]]:fpr128 = INSvi16lane [[INSERT_SUBREG]], 1, [[INSERT_SUBREG1]], 0
    ; CHECK: [[DEF2:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG2:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF2]], [[CPYi16_1]], %subreg.hsub
    ; CHECK: [[INSvi16lane1:%[0-9]+]]:fpr128 = INSvi16lane [[INSvi16lane]], 2, [[INSERT_SUBREG2]], 0
    ; CHECK: [[DEF3:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG3:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF3]], [[CPYi16_2]], %subreg.hsub
    ; CHECK: [[INSvi16lane2:%[0-9]+]]:fpr128 = INSvi16lane [[INSvi16lane1]], 3, [[INSERT_SUBREG3]], 0
    ; CHECK: [[DEF4:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG4:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF4]], [[CPYi16_3]], %subreg.hsub
    ; CHECK: [[INSvi16lane3:%[0-9]+]]:fpr128 = INSvi16lane [[INSvi16lane2]], 4, [[INSERT_SUBREG4]], 0
    ; CHECK: [[DEF5:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG5:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF5]], [[CPYi16_4]], %subreg.hsub
    ; CHECK: [[INSvi16lane4:%[0-9]+]]:fpr128 = INSvi16lane [[INSvi16lane3]], 5, [[INSERT_SUBREG5]], 0
    ; CHECK: [[DEF6:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG6:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF6]], [[CPYi16_5]], %subreg.hsub
    ; CHECK: [[INSvi16lane5:%[0-9]+]]:fpr128 = INSvi16lane [[INSvi16lane4]], 6, [[INSERT_SUBREG6]], 0
    ; CHECK: [[DEF7:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG7:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF7]], [[CPYi16_6]], %subreg.hsub
    ; CHECK: [[INSvi16lane6:%[0-9]+]]:fpr128 = INSvi16lane [[INSvi16lane5]], 7, [[INSERT_SUBREG7]], 0
    ; CHECK: $q0 = COPY [[INSvi16lane6]]
    ; CHECK: RET_ReallyLR implicit $q0
    %0:fpr(<8 x s16>) = COPY $q0

    ; Since 8 * 16 = 128, we can just directly copy.
    %2:fpr(s16), %3:fpr(s16), %4:fpr(s16), %5:fpr(s16), %6:fpr(s16), %7:fpr(s16), %8:fpr(s16), %9:fpr(s16) = G_UNMERGE_VALUES %0(<8 x s16>)

    %1:fpr(<8 x s16>) = G_BUILD_VECTOR %2:fpr(s16), %3:fpr(s16), %4:fpr(s16), %5:fpr(s16), %6:fpr(s16), %7:fpr(s16), %8:fpr(s16), %9:fpr(s16)
    $q0 = COPY %1(<8 x s16>)
    RET_ReallyLR implicit $q0
...
---
name:            test_v8s8_unmerge
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $q0
    ; CHECK-LABEL: name: test_v8s8_unmerge
    ; CHECK: liveins: $q0
    ; CHECK: [[COPY:%[0-9]+]]:fpr64 = COPY $d0
    ; CHECK: [[DEF:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF]], [[COPY]], %subreg.dsub
    ; CHECK: [[DEF1:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG1:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF1]], [[COPY]], %subreg.dsub
    ; CHECK: [[DEF2:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG2:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF2]], [[COPY]], %subreg.dsub
    ; CHECK: [[DEF3:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG3:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF3]], [[COPY]], %subreg.dsub
    ; CHECK: [[DEF4:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG4:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF4]], [[COPY]], %subreg.dsub
    ; CHECK: [[DEF5:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG5:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF5]], [[COPY]], %subreg.dsub
    ; CHECK: [[DEF6:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG6:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF6]], [[COPY]], %subreg.dsub
    ; CHECK: [[COPY1:%[0-9]+]]:fpr8 = COPY [[INSERT_SUBREG]].bsub
    ; CHECK: [[CPYi8_:%[0-9]+]]:fpr8 = CPYi8 [[INSERT_SUBREG]], 1
    ; CHECK: [[CPYi8_1:%[0-9]+]]:fpr8 = CPYi8 [[INSERT_SUBREG1]], 2
    ; CHECK: [[CPYi8_2:%[0-9]+]]:fpr8 = CPYi8 [[INSERT_SUBREG2]], 3
    ; CHECK: [[CPYi8_3:%[0-9]+]]:fpr8 = CPYi8 [[INSERT_SUBREG3]], 4
    ; CHECK: [[CPYi8_4:%[0-9]+]]:fpr8 = CPYi8 [[INSERT_SUBREG4]], 5
    ; CHECK: [[CPYi8_5:%[0-9]+]]:fpr8 = CPYi8 [[INSERT_SUBREG5]], 6
    ; CHECK: [[CPYi8_6:%[0-9]+]]:fpr8 = CPYi8 [[INSERT_SUBREG6]], 7
    ; CHECK: $b0 = COPY [[COPY1]]
    ; CHECK: $b1 = COPY [[CPYi8_]]
    ; CHECK: $b2 = COPY [[CPYi8_1]]
    ; CHECK: $b3 = COPY [[CPYi8_2]]
    ; CHECK: $b4 = COPY [[CPYi8_3]]
    ; CHECK: $b5 = COPY [[CPYi8_4]]
    ; CHECK: $b6 = COPY [[CPYi8_5]]
    ; CHECK: $b7 = COPY [[CPYi8_6]]
    ; CHECK: RET_ReallyLR implicit $d0
    %0:fpr(<8 x s8>) = COPY $d0
    %2:fpr(s8), %3:fpr(s8), %4:fpr(s8), %5:fpr(s8), %6:fpr(s8), %7:fpr(s8), %8:fpr(s8), %9:fpr(s8) = G_UNMERGE_VALUES %0(<8 x s8>)
    $b0 = COPY %2
    $b1 = COPY %3
    $b2 = COPY %4
    $b3 = COPY %5
    $b4 = COPY %6
    $b5 = COPY %7
    $b6 = COPY %8
    $b7 = COPY %9
    RET_ReallyLR implicit $d0
...
---
name:            test_vecsplit_2v2s32_v4s32
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $q0
    ; CHECK-LABEL: name: test_vecsplit_2v2s32_v4s32
    ; CHECK: liveins: $q0
    ; CHECK: [[COPY:%[0-9]+]]:fpr128 = COPY $q0
    ; CHECK: [[COPY1:%[0-9]+]]:fpr64 = COPY [[COPY]].dsub
    ; CHECK: [[CPYi64_:%[0-9]+]]:fpr64 = CPYi64 [[COPY]], 1
    ; CHECK: $d0 = COPY [[COPY1]]
    ; CHECK: $d1 = COPY [[CPYi64_]]
    ; CHECK: RET_ReallyLR implicit $d0
    %0:fpr(<4 x s32>) = COPY $q0
    %1:fpr(<2 x s32>), %2:fpr(<2 x s32>) = G_UNMERGE_VALUES %0(<4 x s32>)
    $d0 = COPY %1(<2 x s32>)
    $d1 = COPY %2(<2 x s32>)
    RET_ReallyLR implicit $d0
...
---
name:            test_vecsplit_2v2s16_v4s16
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $d0
    ; CHECK-LABEL: name: test_vecsplit_2v2s16_v4s16
    ; CHECK: liveins: $d0
    ; CHECK: [[COPY:%[0-9]+]]:fpr64 = COPY $d0
    ; CHECK: [[COPY1:%[0-9]+]]:fpr32 = COPY [[COPY]].ssub
    ; CHECK: [[DEF:%[0-9]+]]:fpr128 = IMPLICIT_DEF
    ; CHECK: [[INSERT_SUBREG:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF]], [[COPY]], %subreg.dsub
    ; CHECK: [[CPYi32_:%[0-9]+]]:fpr32 = CPYi32 [[INSERT_SUBREG]], 1
    ; CHECK: $s0 = COPY [[COPY1]]
    ; CHECK: $s1 = COPY [[CPYi32_]]
    ; CHECK: RET_ReallyLR implicit $s0
    %0:fpr(<4 x s16>) = COPY $d0
    %1:fpr(<2 x s16>), %2:fpr(<2 x s16>) = G_UNMERGE_VALUES %0(<4 x s16>)
    $s0 = COPY %1(<2 x s16>)
    $s1 = COPY %2(<2 x s16>)
    RET_ReallyLR implicit $s0
...
---
name:            test_s128
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $q0
    ; CHECK-LABEL: name: test_s128
    ; CHECK: liveins: $q0
    ; CHECK: [[COPY:%[0-9]+]]:fpr128 = COPY $q0
    ; CHECK: [[COPY1:%[0-9]+]]:fpr64 = COPY [[COPY]].dsub
    ; CHECK: [[CPYi64_:%[0-9]+]]:fpr64 = CPYi64 [[COPY]], 1
    ; CHECK: $d0 = COPY [[COPY1]]
    ; CHECK: $d1 = COPY [[CPYi64_]]
    ; CHECK: RET_ReallyLR implicit $d0, implicit $d1
    %0:fpr(s128) = COPY $q0
    %1:fpr(s64), %2:fpr(s64) = G_UNMERGE_VALUES %0(s128)
    $d0 = COPY %1(s64)
    $d1 = COPY %2(s64)
    RET_ReallyLR implicit $d0, implicit $d1
...