llvm/test/CodeGen/AArch64/GlobalISel/combine-binop-undef-left-to-zero.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:            test_combine_shl_undef_x_s32
body:             |
  bb.1:
  liveins: $w0
    ; CHECK-LABEL: name: test_combine_shl_undef_x_s32
    ; CHECK: liveins: $w0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
    ; CHECK-NEXT: $w0 = COPY [[C]](s32)
    %0:_(s32) = COPY $w0
    %1:_(s32) = G_IMPLICIT_DEF
    %2:_(s32) = G_SHL %1(s32), %0(s32)
    $w0 = COPY %2(s32)
...
---
name:            test_combine_shl_undef_x_v2s32
body:             |
  bb.1:
  liveins: $d0
    ; CHECK-LABEL: name: test_combine_shl_undef_x_v2s32
    ; CHECK: liveins: $d0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
    ; CHECK-NEXT: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[C]](s32), [[C]](s32)
    ; CHECK-NEXT: $d0 = COPY [[BUILD_VECTOR]](<2 x s32>)
    %0:_(<2 x s32>) = COPY $d0
    %1:_(<2 x s32>) = G_IMPLICIT_DEF
    %2:_(<2 x s32>) = G_SHL %1(<2 x s32>), %0(<2 x s32>)
    $d0 = COPY %2(<2 x s32>)
...
---
name:            udiv_scalar
body:             |
  bb.1:
  liveins: $w0
    ; CHECK-LABEL: name: udiv_scalar
    ; CHECK: liveins: $w0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: %op:_(s32) = G_CONSTANT i32 0
    ; CHECK-NEXT: $w0 = COPY %op(s32)
    %rhs:_(s32) = COPY $w0
    %undef:_(s32) = G_IMPLICIT_DEF
    %op:_(s32) = G_UDIV %undef(s32), %rhs(s32)
    $w0 = COPY %op(s32)
...
---
name:            udiv_vector
body:             |
  bb.1:
  liveins: $d0
    ; CHECK-LABEL: name: udiv_vector
    ; CHECK: liveins: $d0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
    ; CHECK-NEXT: %op:_(<2 x s32>) = G_BUILD_VECTOR [[C]](s32), [[C]](s32)
    ; CHECK-NEXT: $d0 = COPY %op(<2 x s32>)
    %rhs:_(<2 x s32>) = COPY $d0
    %undef:_(<2 x s32>) = G_IMPLICIT_DEF
    %op:_(<2 x s32>) = G_UDIV %undef(<2 x s32>), %rhs(<2 x s32>)
    $d0 = COPY %op(<2 x s32>)
...
---
name:            urem_scalar
body:             |
  bb.1:
  liveins: $w0
    ; CHECK-LABEL: name: urem_scalar
    ; CHECK: liveins: $w0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: %op:_(s32) = G_CONSTANT i32 0
    ; CHECK-NEXT: $w0 = COPY %op(s32)
    %rhs:_(s32) = COPY $w0
    %undef:_(s32) = G_IMPLICIT_DEF
    %op:_(s32) = G_UREM %undef(s32), %rhs(s32)
    $w0 = COPY %op(s32)
...
---
name:            urem_vector
body:             |
  bb.1:
  liveins: $d0
    ; CHECK-LABEL: name: urem_vector
    ; CHECK: liveins: $d0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
    ; CHECK-NEXT: %op:_(<2 x s32>) = G_BUILD_VECTOR [[C]](s32), [[C]](s32)
    ; CHECK-NEXT: $d0 = COPY %op(<2 x s32>)
    %rhs:_(<2 x s32>) = COPY $d0
    %undef:_(<2 x s32>) = G_IMPLICIT_DEF
    %op:_(<2 x s32>) = G_UREM %undef(<2 x s32>), %rhs(<2 x s32>)
    $d0 = COPY %op(<2 x s32>)