llvm/test/CodeGen/AArch64/GlobalISel/combine-udiv.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -o - -mtriple=aarch64-unknown-unknown -run-pass=aarch64-prelegalizer-combiner -verify-machineinstrs %s | FileCheck %s
---
name: udiv_by_scalar_const
body:             |
  bb.1:
  liveins: $w0
    ; CHECK-LABEL: name: udiv_by_scalar_const
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
    ; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 818089009
    ; CHECK-NEXT: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
    ; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY]], [[C]](s32)
    ; CHECK-NEXT: [[UMULH:%[0-9]+]]:_(s32) = G_UMULH [[LSHR]], [[C1]]
    ; CHECK-NEXT: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UMULH]], [[C2]](s32)
    ; CHECK-NEXT: $w0 = COPY [[LSHR1]](s32)
    %0:_(s32) = COPY $w0
    %cst:_(s32) = G_CONSTANT i32 42
    %2:_(s32) = G_UDIV %0(s32), %cst(s32)
    $w0 = COPY %2(s32)
...
---
name:            combine_vec_udiv_uniform
alignment:       4
tracksRegLiveness: true
liveins:
  - { reg: '$q0' }
body:             |
  bb.1:
    liveins: $q0

    ; CHECK-LABEL: name: combine_vec_udiv_uniform
    ; CHECK: liveins: $q0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<8 x s16>) = COPY $q0
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 25645
    ; CHECK-NEXT: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 4
    ; CHECK-NEXT: [[BUILD_VECTOR:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C]](s16), [[C]](s16), [[C]](s16), [[C]](s16), [[C]](s16), [[C]](s16), [[C]](s16), [[C]](s16)
    ; CHECK-NEXT: [[BUILD_VECTOR1:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C1]](s16), [[C1]](s16), [[C1]](s16), [[C1]](s16), [[C1]](s16), [[C1]](s16), [[C1]](s16), [[C1]](s16)
    ; CHECK-NEXT: [[UMULH:%[0-9]+]]:_(<8 x s16>) = G_UMULH [[COPY]], [[BUILD_VECTOR]]
    ; CHECK-NEXT: [[SUB:%[0-9]+]]:_(<8 x s16>) = G_SUB [[COPY]], [[UMULH]]
    ; CHECK-NEXT: [[C2:%[0-9]+]]:_(s16) = G_CONSTANT i16 1
    ; CHECK-NEXT: [[BUILD_VECTOR2:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C2]](s16), [[C2]](s16), [[C2]](s16), [[C2]](s16), [[C2]](s16), [[C2]](s16), [[C2]](s16), [[C2]](s16)
    ; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(<8 x s16>) = G_LSHR [[SUB]], [[BUILD_VECTOR2]](<8 x s16>)
    ; CHECK-NEXT: [[ADD:%[0-9]+]]:_(<8 x s16>) = G_ADD [[LSHR]], [[UMULH]]
    ; CHECK-NEXT: [[LSHR1:%[0-9]+]]:_(<8 x s16>) = G_LSHR [[ADD]], [[BUILD_VECTOR1]](<8 x s16>)
    ; CHECK-NEXT: $q0 = COPY [[LSHR1]](<8 x s16>)
    ; CHECK-NEXT: RET_ReallyLR implicit $q0
    %0:_(<8 x s16>) = COPY $q0
    %2:_(s16) = G_CONSTANT i16 23
    %1:_(<8 x s16>) = G_BUILD_VECTOR %2(s16), %2(s16), %2(s16), %2(s16), %2(s16), %2(s16), %2(s16), %2(s16)
    %3:_(<8 x s16>) = G_UDIV %0, %1
    $q0 = COPY %3(<8 x s16>)
    RET_ReallyLR implicit $q0

...
---
name:            combine_vec_udiv_nonuniform
alignment:       4
tracksRegLiveness: true
liveins:
  - { reg: '$q0' }
body:             |
  bb.1:
    liveins: $q0

    ; CHECK-LABEL: name: combine_vec_udiv_nonuniform
    ; CHECK: liveins: $q0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<8 x s16>) = COPY $q0
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 23
    ; CHECK-NEXT: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 34
    ; CHECK-NEXT: [[C2:%[0-9]+]]:_(s16) = G_CONSTANT i16 -23
    ; CHECK-NEXT: [[C3:%[0-9]+]]:_(s16) = G_CONSTANT i16 56
    ; CHECK-NEXT: [[C4:%[0-9]+]]:_(s16) = G_CONSTANT i16 128
    ; CHECK-NEXT: [[C5:%[0-9]+]]:_(s16) = G_CONSTANT i16 -1
    ; CHECK-NEXT: [[C6:%[0-9]+]]:_(s16) = G_CONSTANT i16 -256
    ; CHECK-NEXT: [[C7:%[0-9]+]]:_(s16) = G_CONSTANT i16 -32768
    ; CHECK-NEXT: [[BUILD_VECTOR:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C]](s16), [[C1]](s16), [[C2]](s16), [[C3]](s16), [[C4]](s16), [[C5]](s16), [[C6]](s16), [[C7]](s16)
    ; CHECK-NEXT: [[C8:%[0-9]+]]:_(s16) = G_CONSTANT i16 0
    ; CHECK-NEXT: [[C9:%[0-9]+]]:_(s16) = G_CONSTANT i16 25645
    ; CHECK-NEXT: [[C10:%[0-9]+]]:_(s16) = G_CONSTANT i16 4
    ; CHECK-NEXT: [[C11:%[0-9]+]]:_(s16) = G_CONSTANT i16 -3855
    ; CHECK-NEXT: [[C12:%[0-9]+]]:_(s16) = G_CONSTANT i16 5
    ; CHECK-NEXT: [[C13:%[0-9]+]]:_(s16) = G_CONSTANT i16 8195
    ; CHECK-NEXT: [[C14:%[0-9]+]]:_(s16) = G_CONSTANT i16 13
    ; CHECK-NEXT: [[C15:%[0-9]+]]:_(s16) = G_CONSTANT i16 3
    ; CHECK-NEXT: [[C16:%[0-9]+]]:_(s16) = G_CONSTANT i16 9363
    ; CHECK-NEXT: [[C17:%[0-9]+]]:_(s16) = G_CONSTANT i16 512
    ; CHECK-NEXT: [[C18:%[0-9]+]]:_(s16) = G_CONSTANT i16 -32767
    ; CHECK-NEXT: [[C19:%[0-9]+]]:_(s16) = G_CONSTANT i16 15
    ; CHECK-NEXT: [[C20:%[0-9]+]]:_(s16) = G_CONSTANT i16 -32639
    ; CHECK-NEXT: [[C21:%[0-9]+]]:_(s16) = G_CONSTANT i16 2
    ; CHECK-NEXT: [[BUILD_VECTOR1:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C15]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16)
    ; CHECK-NEXT: [[BUILD_VECTOR2:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C9]](s16), [[C11]](s16), [[C13]](s16), [[C16]](s16), [[C17]](s16), [[C18]](s16), [[C20]](s16), [[C21]](s16)
    ; CHECK-NEXT: [[BUILD_VECTOR3:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C7]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16)
    ; CHECK-NEXT: [[BUILD_VECTOR4:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C10]](s16), [[C12]](s16), [[C14]](s16), [[C8]](s16), [[C8]](s16), [[C19]](s16), [[C19]](s16), [[C8]](s16)
    ; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(<8 x s16>) = G_LSHR [[COPY]], [[BUILD_VECTOR1]](<8 x s16>)
    ; CHECK-NEXT: [[UMULH:%[0-9]+]]:_(<8 x s16>) = G_UMULH [[LSHR]], [[BUILD_VECTOR2]]
    ; CHECK-NEXT: [[SUB:%[0-9]+]]:_(<8 x s16>) = G_SUB [[COPY]], [[UMULH]]
    ; CHECK-NEXT: [[UMULH1:%[0-9]+]]:_(<8 x s16>) = G_UMULH [[SUB]], [[BUILD_VECTOR3]]
    ; CHECK-NEXT: [[ADD:%[0-9]+]]:_(<8 x s16>) = G_ADD [[UMULH1]], [[UMULH]]
    ; CHECK-NEXT: [[LSHR1:%[0-9]+]]:_(<8 x s16>) = G_LSHR [[ADD]], [[BUILD_VECTOR4]](<8 x s16>)
    ; CHECK-NEXT: [[C22:%[0-9]+]]:_(s16) = G_CONSTANT i16 1
    ; CHECK-NEXT: [[BUILD_VECTOR5:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C22]](s16), [[C22]](s16), [[C22]](s16), [[C22]](s16), [[C22]](s16), [[C22]](s16), [[C22]](s16), [[C22]](s16)
    ; CHECK-NEXT: [[ICMP:%[0-9]+]]:_(<8 x s1>) = G_ICMP intpred(eq), [[BUILD_VECTOR]](<8 x s16>), [[BUILD_VECTOR5]]
    ; CHECK-NEXT: [[SELECT:%[0-9]+]]:_(<8 x s16>) = G_SELECT [[ICMP]](<8 x s1>), [[COPY]], [[LSHR1]]
    ; CHECK-NEXT: $q0 = COPY [[SELECT]](<8 x s16>)
    ; CHECK-NEXT: RET_ReallyLR implicit $q0
    %0:_(<8 x s16>) = COPY $q0
    %2:_(s16) = G_CONSTANT i16 23
    %3:_(s16) = G_CONSTANT i16 34
    %4:_(s16) = G_CONSTANT i16 -23
    %5:_(s16) = G_CONSTANT i16 56
    %6:_(s16) = G_CONSTANT i16 128
    %7:_(s16) = G_CONSTANT i16 -1
    %8:_(s16) = G_CONSTANT i16 -256
    %9:_(s16) = G_CONSTANT i16 -32768
    %1:_(<8 x s16>) = G_BUILD_VECTOR %2(s16), %3(s16), %4(s16), %5(s16), %6(s16), %7(s16), %8(s16), %9(s16)
    %10:_(<8 x s16>) = G_UDIV %0, %1
    $q0 = COPY %10(<8 x s16>)
    RET_ReallyLR implicit $q0

...
---
name:            combine_vec_udiv_nonuniform2
alignment:       4
tracksRegLiveness: true
liveins:
  - { reg: '$q0' }
body:             |
  bb.1:
    liveins: $q0

    ; CHECK-LABEL: name: combine_vec_udiv_nonuniform2
    ; CHECK: liveins: $q0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<8 x s16>) = COPY $q0
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 -34
    ; CHECK-NEXT: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 35
    ; CHECK-NEXT: [[C2:%[0-9]+]]:_(s16) = G_CONSTANT i16 36
    ; CHECK-NEXT: [[C3:%[0-9]+]]:_(s16) = G_CONSTANT i16 -37
    ; CHECK-NEXT: [[C4:%[0-9]+]]:_(s16) = G_CONSTANT i16 38
    ; CHECK-NEXT: [[C5:%[0-9]+]]:_(s16) = G_CONSTANT i16 -39
    ; CHECK-NEXT: [[C6:%[0-9]+]]:_(s16) = G_CONSTANT i16 40
    ; CHECK-NEXT: [[C7:%[0-9]+]]:_(s16) = G_CONSTANT i16 -41
    ; CHECK-NEXT: [[BUILD_VECTOR:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C]](s16), [[C1]](s16), [[C2]](s16), [[C3]](s16), [[C4]](s16), [[C5]](s16), [[C6]](s16), [[C7]](s16)
    ; CHECK-NEXT: [[C8:%[0-9]+]]:_(s16) = G_CONSTANT i16 1
    ; CHECK-NEXT: [[C9:%[0-9]+]]:_(s16) = G_CONSTANT i16 16393
    ; CHECK-NEXT: [[C10:%[0-9]+]]:_(s16) = G_CONSTANT i16 0
    ; CHECK-NEXT: [[C11:%[0-9]+]]:_(s16) = G_CONSTANT i16 13
    ; CHECK-NEXT: [[C12:%[0-9]+]]:_(s16) = G_CONSTANT i16 -5617
    ; CHECK-NEXT: [[C13:%[0-9]+]]:_(s16) = G_CONSTANT i16 5
    ; CHECK-NEXT: [[C14:%[0-9]+]]:_(s16) = G_CONSTANT i16 -7281
    ; CHECK-NEXT: [[C15:%[0-9]+]]:_(s16) = G_CONSTANT i16 -32749
    ; CHECK-NEXT: [[C16:%[0-9]+]]:_(s16) = G_CONSTANT i16 15
    ; CHECK-NEXT: [[C17:%[0-9]+]]:_(s16) = G_CONSTANT i16 -10347
    ; CHECK-NEXT: [[C18:%[0-9]+]]:_(s16) = G_CONSTANT i16 8197
    ; CHECK-NEXT: [[C19:%[0-9]+]]:_(s16) = G_CONSTANT i16 -13107
    ; CHECK-NEXT: [[C20:%[0-9]+]]:_(s16) = G_CONSTANT i16 -32747
    ; CHECK-NEXT: [[BUILD_VECTOR1:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C8]](s16), [[C10]](s16), [[C10]](s16), [[C10]](s16), [[C10]](s16), [[C10]](s16), [[C10]](s16), [[C10]](s16)
    ; CHECK-NEXT: [[BUILD_VECTOR2:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C9]](s16), [[C12]](s16), [[C14]](s16), [[C15]](s16), [[C17]](s16), [[C18]](s16), [[C19]](s16), [[C20]](s16)
    ; CHECK-NEXT: [[BUILD_VECTOR3:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C11]](s16), [[C13]](s16), [[C13]](s16), [[C16]](s16), [[C13]](s16), [[C11]](s16), [[C13]](s16), [[C16]](s16)
    ; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(<8 x s16>) = G_LSHR [[COPY]], [[BUILD_VECTOR1]](<8 x s16>)
    ; CHECK-NEXT: [[UMULH:%[0-9]+]]:_(<8 x s16>) = G_UMULH [[LSHR]], [[BUILD_VECTOR2]]
    ; CHECK-NEXT: [[LSHR1:%[0-9]+]]:_(<8 x s16>) = G_LSHR [[UMULH]], [[BUILD_VECTOR3]](<8 x s16>)
    ; CHECK-NEXT: [[BUILD_VECTOR4:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16)
    ; CHECK-NEXT: [[ICMP:%[0-9]+]]:_(<8 x s1>) = G_ICMP intpred(eq), [[BUILD_VECTOR]](<8 x s16>), [[BUILD_VECTOR4]]
    ; CHECK-NEXT: [[SELECT:%[0-9]+]]:_(<8 x s16>) = G_SELECT [[ICMP]](<8 x s1>), [[COPY]], [[LSHR1]]
    ; CHECK-NEXT: $q0 = COPY [[SELECT]](<8 x s16>)
    ; CHECK-NEXT: RET_ReallyLR implicit $q0
    %0:_(<8 x s16>) = COPY $q0
    %2:_(s16) = G_CONSTANT i16 -34
    %3:_(s16) = G_CONSTANT i16 35
    %4:_(s16) = G_CONSTANT i16 36
    %5:_(s16) = G_CONSTANT i16 -37
    %6:_(s16) = G_CONSTANT i16 38
    %7:_(s16) = G_CONSTANT i16 -39
    %8:_(s16) = G_CONSTANT i16 40
    %9:_(s16) = G_CONSTANT i16 -41
    %1:_(<8 x s16>) = G_BUILD_VECTOR %2(s16), %3(s16), %4(s16), %5(s16), %6(s16), %7(s16), %8(s16), %9(s16)
    %10:_(<8 x s16>) = G_UDIV %0, %1
    $q0 = COPY %10(<8 x s16>)
    RET_ReallyLR implicit $q0

...
---
name:            combine_vec_udiv_nonuniform3
alignment:       4
tracksRegLiveness: true
liveins:
  - { reg: '$q0' }
body:             |
  bb.1:
    liveins: $q0

    ; CHECK-LABEL: name: combine_vec_udiv_nonuniform3
    ; CHECK: liveins: $q0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<8 x s16>) = COPY $q0
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 7
    ; CHECK-NEXT: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 23
    ; CHECK-NEXT: [[C2:%[0-9]+]]:_(s16) = G_CONSTANT i16 25
    ; CHECK-NEXT: [[C3:%[0-9]+]]:_(s16) = G_CONSTANT i16 27
    ; CHECK-NEXT: [[C4:%[0-9]+]]:_(s16) = G_CONSTANT i16 31
    ; CHECK-NEXT: [[C5:%[0-9]+]]:_(s16) = G_CONSTANT i16 47
    ; CHECK-NEXT: [[C6:%[0-9]+]]:_(s16) = G_CONSTANT i16 63
    ; CHECK-NEXT: [[C7:%[0-9]+]]:_(s16) = G_CONSTANT i16 127
    ; CHECK-NEXT: [[BUILD_VECTOR:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C]](s16), [[C1]](s16), [[C2]](s16), [[C3]](s16), [[C4]](s16), [[C5]](s16), [[C6]](s16), [[C7]](s16)
    ; CHECK-NEXT: [[C8:%[0-9]+]]:_(s16) = G_CONSTANT i16 9363
    ; CHECK-NEXT: [[C9:%[0-9]+]]:_(s16) = G_CONSTANT i16 2
    ; CHECK-NEXT: [[C10:%[0-9]+]]:_(s16) = G_CONSTANT i16 25645
    ; CHECK-NEXT: [[C11:%[0-9]+]]:_(s16) = G_CONSTANT i16 4
    ; CHECK-NEXT: [[C12:%[0-9]+]]:_(s16) = G_CONSTANT i16 18351
    ; CHECK-NEXT: [[C13:%[0-9]+]]:_(s16) = G_CONSTANT i16 12137
    ; CHECK-NEXT: [[C14:%[0-9]+]]:_(s16) = G_CONSTANT i16 2115
    ; CHECK-NEXT: [[C15:%[0-9]+]]:_(s16) = G_CONSTANT i16 23705
    ; CHECK-NEXT: [[C16:%[0-9]+]]:_(s16) = G_CONSTANT i16 5
    ; CHECK-NEXT: [[C17:%[0-9]+]]:_(s16) = G_CONSTANT i16 1041
    ; CHECK-NEXT: [[C18:%[0-9]+]]:_(s16) = G_CONSTANT i16 517
    ; CHECK-NEXT: [[C19:%[0-9]+]]:_(s16) = G_CONSTANT i16 6
    ; CHECK-NEXT: [[BUILD_VECTOR1:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C8]](s16), [[C10]](s16), [[C12]](s16), [[C13]](s16), [[C14]](s16), [[C15]](s16), [[C17]](s16), [[C18]](s16)
    ; CHECK-NEXT: [[BUILD_VECTOR2:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C9]](s16), [[C11]](s16), [[C11]](s16), [[C11]](s16), [[C11]](s16), [[C16]](s16), [[C16]](s16), [[C19]](s16)
    ; CHECK-NEXT: [[UMULH:%[0-9]+]]:_(<8 x s16>) = G_UMULH [[COPY]], [[BUILD_VECTOR1]]
    ; CHECK-NEXT: [[SUB:%[0-9]+]]:_(<8 x s16>) = G_SUB [[COPY]], [[UMULH]]
    ; CHECK-NEXT: [[C20:%[0-9]+]]:_(s16) = G_CONSTANT i16 1
    ; CHECK-NEXT: [[BUILD_VECTOR3:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C20]](s16), [[C20]](s16), [[C20]](s16), [[C20]](s16), [[C20]](s16), [[C20]](s16), [[C20]](s16), [[C20]](s16)
    ; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(<8 x s16>) = G_LSHR [[SUB]], [[BUILD_VECTOR3]](<8 x s16>)
    ; CHECK-NEXT: [[ADD:%[0-9]+]]:_(<8 x s16>) = G_ADD [[LSHR]], [[UMULH]]
    ; CHECK-NEXT: [[LSHR1:%[0-9]+]]:_(<8 x s16>) = G_LSHR [[ADD]], [[BUILD_VECTOR2]](<8 x s16>)
    ; CHECK-NEXT: [[BUILD_VECTOR4:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C20]](s16), [[C20]](s16), [[C20]](s16), [[C20]](s16), [[C20]](s16), [[C20]](s16), [[C20]](s16), [[C20]](s16)
    ; CHECK-NEXT: [[ICMP:%[0-9]+]]:_(<8 x s1>) = G_ICMP intpred(eq), [[BUILD_VECTOR]](<8 x s16>), [[BUILD_VECTOR4]]
    ; CHECK-NEXT: [[SELECT:%[0-9]+]]:_(<8 x s16>) = G_SELECT [[ICMP]](<8 x s1>), [[COPY]], [[LSHR1]]
    ; CHECK-NEXT: $q0 = COPY [[SELECT]](<8 x s16>)
    ; CHECK-NEXT: RET_ReallyLR implicit $q0
    %0:_(<8 x s16>) = COPY $q0
    %2:_(s16) = G_CONSTANT i16 7
    %3:_(s16) = G_CONSTANT i16 23
    %4:_(s16) = G_CONSTANT i16 25
    %5:_(s16) = G_CONSTANT i16 27
    %6:_(s16) = G_CONSTANT i16 31
    %7:_(s16) = G_CONSTANT i16 47
    %8:_(s16) = G_CONSTANT i16 63
    %9:_(s16) = G_CONSTANT i16 127
    %1:_(<8 x s16>) = G_BUILD_VECTOR %2(s16), %3(s16), %4(s16), %5(s16), %6(s16), %7(s16), %8(s16), %9(s16)
    %10:_(<8 x s16>) = G_UDIV %0, %1
    $q0 = COPY %10(<8 x s16>)
    RET_ReallyLR implicit $q0

...
---
name:            combine_vec_udiv_nonuniform4
alignment:       4
tracksRegLiveness: true
liveins:
  - { reg: '$q0' }
body:             |
  bb.1:
    liveins: $q0

    ; CHECK-LABEL: name: combine_vec_udiv_nonuniform4
    ; CHECK: liveins: $q0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<16 x s8>) = COPY $q0
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s8) = G_CONSTANT i8 -64
    ; CHECK-NEXT: [[C1:%[0-9]+]]:_(s8) = G_CONSTANT i8 1
    ; CHECK-NEXT: [[BUILD_VECTOR:%[0-9]+]]:_(<16 x s8>) = G_BUILD_VECTOR [[C]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8)
    ; CHECK-NEXT: [[C2:%[0-9]+]]:_(s8) = G_CONSTANT i8 0
    ; CHECK-NEXT: [[C3:%[0-9]+]]:_(s8) = G_CONSTANT i8 -85
    ; CHECK-NEXT: [[C4:%[0-9]+]]:_(s8) = G_CONSTANT i8 7
    ; CHECK-NEXT: [[BUILD_VECTOR1:%[0-9]+]]:_(<16 x s8>) = G_BUILD_VECTOR [[C3]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8)
    ; CHECK-NEXT: [[BUILD_VECTOR2:%[0-9]+]]:_(<16 x s8>) = G_BUILD_VECTOR [[C4]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8), [[C2]](s8)
    ; CHECK-NEXT: [[UMULH:%[0-9]+]]:_(<16 x s8>) = G_UMULH [[COPY]], [[BUILD_VECTOR1]]
    ; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(<16 x s8>) = G_LSHR [[UMULH]], [[BUILD_VECTOR2]](<16 x s8>)
    ; CHECK-NEXT: [[BUILD_VECTOR3:%[0-9]+]]:_(<16 x s8>) = G_BUILD_VECTOR [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8), [[C1]](s8)
    ; CHECK-NEXT: [[ICMP:%[0-9]+]]:_(<16 x s1>) = G_ICMP intpred(eq), [[BUILD_VECTOR]](<16 x s8>), [[BUILD_VECTOR3]]
    ; CHECK-NEXT: [[SELECT:%[0-9]+]]:_(<16 x s8>) = G_SELECT [[ICMP]](<16 x s1>), [[COPY]], [[LSHR]]
    ; CHECK-NEXT: $q0 = COPY [[SELECT]](<16 x s8>)
    ; CHECK-NEXT: RET_ReallyLR implicit $q0
    %0:_(<16 x s8>) = COPY $q0
    %2:_(s8) = G_CONSTANT i8 -64
    %3:_(s8) = G_CONSTANT i8 1
    %1:_(<16 x s8>) = G_BUILD_VECTOR %2(s8), %3(s8), %3(s8), %3(s8), %3(s8), %3(s8), %3(s8), %3(s8), %3(s8), %3(s8), %3(s8), %3(s8), %3(s8), %3(s8), %3(s8), %3(s8)
    %4:_(<16 x s8>) = G_UDIV %0, %1
    $q0 = COPY %4(<16 x s8>)
    RET_ReallyLR implicit $q0

...
---
name:            pr38477
alignment:       4
tracksRegLiveness: true
liveins:
  - { reg: '$q0' }
body:             |
  bb.1:
    liveins: $q0

    ; CHECK-LABEL: name: pr38477
    ; CHECK: liveins: $q0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<8 x s16>) = COPY $q0
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 1
    ; CHECK-NEXT: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 119
    ; CHECK-NEXT: [[C2:%[0-9]+]]:_(s16) = G_CONSTANT i16 73
    ; CHECK-NEXT: [[C3:%[0-9]+]]:_(s16) = G_CONSTANT i16 -111
    ; CHECK-NEXT: [[C4:%[0-9]+]]:_(s16) = G_CONSTANT i16 -3
    ; CHECK-NEXT: [[C5:%[0-9]+]]:_(s16) = G_CONSTANT i16 118
    ; CHECK-NEXT: [[C6:%[0-9]+]]:_(s16) = G_CONSTANT i16 32
    ; CHECK-NEXT: [[C7:%[0-9]+]]:_(s16) = G_CONSTANT i16 31
    ; CHECK-NEXT: [[BUILD_VECTOR:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C]](s16), [[C1]](s16), [[C2]](s16), [[C3]](s16), [[C4]](s16), [[C5]](s16), [[C6]](s16), [[C7]](s16)
    ; CHECK-NEXT: [[C8:%[0-9]+]]:_(s16) = G_CONSTANT i16 0
    ; CHECK-NEXT: [[C9:%[0-9]+]]:_(s16) = G_CONSTANT i16 4957
    ; CHECK-NEXT: [[C10:%[0-9]+]]:_(s16) = G_CONSTANT i16 -32768
    ; CHECK-NEXT: [[C11:%[0-9]+]]:_(s16) = G_CONSTANT i16 6
    ; CHECK-NEXT: [[C12:%[0-9]+]]:_(s16) = G_CONSTANT i16 -8079
    ; CHECK-NEXT: [[C13:%[0-9]+]]:_(s16) = G_CONSTANT i16 4103
    ; CHECK-NEXT: [[C14:%[0-9]+]]:_(s16) = G_CONSTANT i16 12
    ; CHECK-NEXT: [[C15:%[0-9]+]]:_(s16) = G_CONSTANT i16 16385
    ; CHECK-NEXT: [[C16:%[0-9]+]]:_(s16) = G_CONSTANT i16 14
    ; CHECK-NEXT: [[C17:%[0-9]+]]:_(s16) = G_CONSTANT i16 -29991
    ; CHECK-NEXT: [[C18:%[0-9]+]]:_(s16) = G_CONSTANT i16 2048
    ; CHECK-NEXT: [[C19:%[0-9]+]]:_(s16) = G_CONSTANT i16 2115
    ; CHECK-NEXT: [[C20:%[0-9]+]]:_(s16) = G_CONSTANT i16 4
    ; CHECK-NEXT: [[BUILD_VECTOR1:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C8]](s16), [[C9]](s16), [[C12]](s16), [[C13]](s16), [[C15]](s16), [[C17]](s16), [[C18]](s16), [[C19]](s16)
    ; CHECK-NEXT: [[BUILD_VECTOR2:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C8]](s16), [[C10]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C8]](s16), [[C10]](s16)
    ; CHECK-NEXT: [[BUILD_VECTOR3:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C8]](s16), [[C11]](s16), [[C11]](s16), [[C14]](s16), [[C16]](s16), [[C11]](s16), [[C8]](s16), [[C20]](s16)
    ; CHECK-NEXT: [[UMULH:%[0-9]+]]:_(<8 x s16>) = G_UMULH [[COPY]], [[BUILD_VECTOR1]]
    ; CHECK-NEXT: [[SUB:%[0-9]+]]:_(<8 x s16>) = G_SUB [[COPY]], [[UMULH]]
    ; CHECK-NEXT: [[UMULH1:%[0-9]+]]:_(<8 x s16>) = G_UMULH [[SUB]], [[BUILD_VECTOR2]]
    ; CHECK-NEXT: [[ADD:%[0-9]+]]:_(<8 x s16>) = G_ADD [[UMULH1]], [[UMULH]]
    ; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(<8 x s16>) = G_LSHR [[ADD]], [[BUILD_VECTOR3]](<8 x s16>)
    ; CHECK-NEXT: [[BUILD_VECTOR4:%[0-9]+]]:_(<8 x s16>) = G_BUILD_VECTOR [[C]](s16), [[C]](s16), [[C]](s16), [[C]](s16), [[C]](s16), [[C]](s16), [[C]](s16), [[C]](s16)
    ; CHECK-NEXT: [[ICMP:%[0-9]+]]:_(<8 x s1>) = G_ICMP intpred(eq), [[BUILD_VECTOR]](<8 x s16>), [[BUILD_VECTOR4]]
    ; CHECK-NEXT: [[SELECT:%[0-9]+]]:_(<8 x s16>) = G_SELECT [[ICMP]](<8 x s1>), [[COPY]], [[LSHR]]
    ; CHECK-NEXT: $q0 = COPY [[SELECT]](<8 x s16>)
    ; CHECK-NEXT: RET_ReallyLR implicit $q0
    %0:_(<8 x s16>) = COPY $q0
    %2:_(s16) = G_CONSTANT i16 1
    %3:_(s16) = G_CONSTANT i16 119
    %4:_(s16) = G_CONSTANT i16 73
    %5:_(s16) = G_CONSTANT i16 -111
    %6:_(s16) = G_CONSTANT i16 -3
    %7:_(s16) = G_CONSTANT i16 118
    %8:_(s16) = G_CONSTANT i16 32
    %9:_(s16) = G_CONSTANT i16 31
    %1:_(<8 x s16>) = G_BUILD_VECTOR %2(s16), %3(s16), %4(s16), %5(s16), %6(s16), %7(s16), %8(s16), %9(s16)
    %10:_(<8 x s16>) = G_UDIV %0, %1
    $q0 = COPY %10(<8 x s16>)
    RET_ReallyLR implicit $q0

...