# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -run-pass=aarch64-prelegalizer-combiner -verify-machineinstrs -mtriple aarch64-unknown-unknown %s -o - | FileCheck %s

---
name:            sub_same_op
tracksRegLiveness: true
body: |
  bb.0:
    liveins: $x0
    ; CHECK-LABEL: name: sub_same_op
    ; CHECK: liveins: $x0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
    ; CHECK-NEXT: $x0 = COPY [[C]](s64)
    ; CHECK-NEXT: RET_ReallyLR implicit $x0
    %x:_(s64) = COPY $x0
    %sub:_(s64) = G_SUB %x, %x
    $x0 = COPY %sub
    RET_ReallyLR implicit $x0

...
---
name:            xor_same_op
tracksRegLiveness: true
body: |
  bb.0:
    liveins: $x0
    ; CHECK-LABEL: name: xor_same_op
    ; CHECK: liveins: $x0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
    ; CHECK-NEXT: $x0 = COPY [[C]](s64)
    ; CHECK-NEXT: RET_ReallyLR implicit $x0
    %x:_(s64) = COPY $x0
    %xor:_(s64) = G_XOR %x, %x
    $x0 = COPY %xor
    RET_ReallyLR implicit $x0

...
---
name:            sub_same_op_vec
tracksRegLiveness: true
body: |
  bb.0:
    liveins: $x0
    ; CHECK-LABEL: name: sub_same_op_vec
    ; CHECK: liveins: $x0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 0
    ; CHECK-NEXT: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s16>) = G_BUILD_VECTOR [[C]](s16), [[C]](s16), [[C]](s16), [[C]](s16)
    ; CHECK-NEXT: $x0 = COPY [[BUILD_VECTOR]](<4 x s16>)
    ; CHECK-NEXT: RET_ReallyLR implicit $x0
    %x:_(<4 x s16>) = COPY $x0
    %sub:_(<4 x s16>) = G_SUB %x, %x
    $x0 = COPY %sub
    RET_ReallyLR implicit $x0

...
---
name:            xor_same_op_vec
tracksRegLiveness: true
body: |
  bb.0:
    liveins: $x0
    ; CHECK-LABEL: name: xor_same_op_vec
    ; CHECK: liveins: $x0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 0
    ; CHECK-NEXT: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s16>) = G_BUILD_VECTOR [[C]](s16), [[C]](s16), [[C]](s16), [[C]](s16)
    ; CHECK-NEXT: $x0 = COPY [[BUILD_VECTOR]](<4 x s16>)
    ; CHECK-NEXT: RET_ReallyLR implicit $x0
    %x:_(<4 x s16>) = COPY $x0
    %xor:_(<4 x s16>) = G_XOR %x, %x
    $x0 = COPY %xor
    RET_ReallyLR implicit $x0

...