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llvm/llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-implicit-def.mir 

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn -mcpu=hawaii -run-pass=amdgpu-regbankselect -regbankselect-fast -verify-machineinstrs -o - %s | FileCheck -check-prefixes=CHECK,FAST %s
# RUN: llc -mtriple=amdgcn -mcpu=hawaii -run-pass=amdgpu-regbankselect -regbankselect-greedy -verify-machineinstrs -o - %s | FileCheck -check-prefixes=CHECK,GREEDY %s

---
name: test_implicit_def_s32_vgpr_use
legalized:       true
body: |
  bb.0:
    liveins: $vgpr0_vgpr1

    ; CHECK-LABEL: name: test_implicit_def_s32_vgpr_use
    ; CHECK: liveins: $vgpr0_vgpr1
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:vgpr(p1) = COPY $vgpr0_vgpr1
    ; CHECK-NEXT: [[DEF:%[0-9]+]]:sgpr(s32) = G_IMPLICIT_DEF
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY [[DEF]](s32)
    ; CHECK-NEXT: G_STORE [[COPY1]](s32), [[COPY]](p1) :: (store (s32), addrspace 1)
    %0:_(p1) = COPY $vgpr0_vgpr1
    %1:_(s32) = G_IMPLICIT_DEF
    G_STORE %1, %0 :: (store (s32), addrspace 1)

...

---
name: test_implicit_def_s32_sgpr_use
legalized:       true
body: |
  bb.0:
    ; CHECK-LABEL: name: test_implicit_def_s32_sgpr_use
    ; CHECK: [[DEF:%[0-9]+]]:sgpr(s32) = G_IMPLICIT_DEF
    ; CHECK-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.s.sendmsg), 0, [[DEF]](s32)
    %0:_(s32) = G_IMPLICIT_DEF
    G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.s.sendmsg), 0, %0

...

---
name: test_implicit_def_s64_vgpr_use
legalized:       true
body: |
  bb.0:
    liveins: $vgpr0_vgpr1

    ; CHECK-LABEL: name: test_implicit_def_s64_vgpr_use
    ; CHECK: liveins: $vgpr0_vgpr1
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:vgpr(p1) = COPY $vgpr0_vgpr1
    ; CHECK-NEXT: [[DEF:%[0-9]+]]:sgpr(s64) = G_IMPLICIT_DEF
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:vgpr(s64) = COPY [[DEF]](s64)
    ; CHECK-NEXT: G_STORE [[COPY1]](s64), [[COPY]](p1) :: (store (s64), addrspace 1)
    %0:_(p1) = COPY $vgpr0_vgpr1
    %1:_(s64) = G_IMPLICIT_DEF
    G_STORE %1, %0 :: (store (s64), addrspace 1)

...

---
name: test_implicit_def_v3s32_vgpr_use
legalized:       true
body: |
  bb.0:
    liveins: $vgpr0_vgpr1

    ; CHECK-LABEL: name: test_implicit_def_v3s32_vgpr_use
    ; CHECK: liveins: $vgpr0_vgpr1
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:vgpr(p1) = COPY $vgpr0_vgpr1
    ; CHECK-NEXT: [[DEF:%[0-9]+]]:sgpr(<3 x s32>) = G_IMPLICIT_DEF
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:vgpr(<3 x s32>) = COPY [[DEF]](<3 x s32>)
    ; CHECK-NEXT: G_STORE [[COPY1]](<3 x s32>), [[COPY]](p1) :: (store (<3 x s32>), align 4, addrspace 1)
    %0:_(p1) = COPY $vgpr0_vgpr1
    %1:_(<3 x s32>) = G_IMPLICIT_DEF
    G_STORE %1, %0 :: (store (<3 x s32>), addrspace 1, align 4)

...

---
name: test_implicit_def_v4s32_vgpr_use
legalized:       true
body: |
  bb.0:
    liveins: $vgpr0_vgpr1

    ; CHECK-LABEL: name: test_implicit_def_v4s32_vgpr_use
    ; CHECK: liveins: $vgpr0_vgpr1
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:vgpr(p1) = COPY $vgpr0_vgpr1
    ; CHECK-NEXT: [[DEF:%[0-9]+]]:sgpr(<4 x s32>) = G_IMPLICIT_DEF
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:vgpr(<4 x s32>) = COPY [[DEF]](<4 x s32>)
    ; CHECK-NEXT: G_STORE [[COPY1]](<4 x s32>), [[COPY]](p1) :: (store (<4 x s32>), align 4, addrspace 1)
    %0:_(p1) = COPY $vgpr0_vgpr1
    %1:_(<4 x s32>) = G_IMPLICIT_DEF
    G_STORE %1, %0 :: (store (<4 x s32>), addrspace 1, align 4)

...

---
name: test_implicit_def_s64_sgpr_use
legalized:       true
body: |
  bb.0:
    ; CHECK-LABEL: name: test_implicit_def_s64_sgpr_use
    ; CHECK: [[DEF:%[0-9]+]]:sgpr(s64) = G_IMPLICIT_DEF
    ; CHECK-NEXT: $sgpr8_sgpr9 = COPY [[DEF]](s64)
    %0:_(s64) = G_IMPLICIT_DEF
    $sgpr8_sgpr9 = COPY %0

...

---
name: test_implicit_def_s128_sgpr_use
legalized:       true
body: |
  bb.0:
    ; CHECK-LABEL: name: test_implicit_def_s128_sgpr_use
    ; CHECK: [[DEF:%[0-9]+]]:sgpr(s128) = G_IMPLICIT_DEF
    ; CHECK-NEXT: $sgpr8_sgpr9_sgpr10_sgpr11 = COPY [[DEF]](s128)
    %0:_(s128) = G_IMPLICIT_DEF
    $sgpr8_sgpr9_sgpr10_sgpr11 = COPY %0

...

---
name: test_implicit_def_s1_sgpr_use
legalized:       true
body: |
  bb.0:
    liveins: $sgpr8, $sgpr9
    ; CHECK-LABEL: name: test_implicit_def_s1_sgpr_use
    ; CHECK: liveins: $sgpr8, $sgpr9
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:sgpr(s32) = COPY $sgpr8
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:sgpr(s32) = COPY $sgpr9
    ; CHECK-NEXT: [[DEF:%[0-9]+]]:sgpr(s32) = G_IMPLICIT_DEF
    ; CHECK-NEXT: [[TRUNC:%[0-9]+]]:sgpr(s1) = G_TRUNC [[DEF]](s32)
    ; CHECK-NEXT: [[ZEXT:%[0-9]+]]:sgpr(s32) = G_ZEXT [[TRUNC]](s1)
    ; CHECK-NEXT: [[SELECT:%[0-9]+]]:sgpr(s32) = G_SELECT [[ZEXT]](s32), [[COPY]], [[COPY1]]
    ; CHECK-NEXT: S_ENDPGM 0, implicit [[SELECT]](s32)
    %0:_(s32) = COPY $sgpr8
    %1:_(s32) = COPY $sgpr9
    %2:_(s1) = G_IMPLICIT_DEF
    %3:_(s32) = G_SELECT %2, %0, %1
    S_ENDPGM 0, implicit %3

...

---
name: test_implicit_def_s1_vcc_use
legalized:       true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1
    ; CHECK-LABEL: name: test_implicit_def_s1_vcc_use
    ; CHECK: liveins: $vgpr0, $vgpr1
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
    ; CHECK-NEXT: [[DEF:%[0-9]+]]:sgpr(s32) = G_IMPLICIT_DEF
    ; CHECK-NEXT: [[TRUNC:%[0-9]+]]:sgpr(s1) = G_TRUNC [[DEF]](s32)
    ; CHECK-NEXT: [[COPY2:%[0-9]+]]:vcc(s1) = COPY [[TRUNC]](s1)
    ; CHECK-NEXT: [[SELECT:%[0-9]+]]:vgpr(s32) = G_SELECT [[COPY2]](s1), [[COPY]], [[COPY1]]
    ; CHECK-NEXT: S_ENDPGM 0, implicit [[SELECT]](s32)
    %0:_(s32) = COPY $vgpr0
    %1:_(s32) = COPY $vgpr1
    %2:_(s1) = G_IMPLICIT_DEF
    %3:_(s32) = G_SELECT %2, %0, %1
    S_ENDPGM 0, implicit %3

...

---
name: test_implicit_def_s1_explicit_vcc_use_0
legalized:       true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1
    ; FAST-LABEL: name: test_implicit_def_s1_explicit_vcc_use_0
    ; FAST: liveins: $vgpr0, $vgpr1
    ; FAST-NEXT: {{  $}}
    ; FAST-NEXT: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
    ; FAST-NEXT: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
    ; FAST-NEXT: [[DEF:%[0-9]+]]:sgpr(s32) = G_IMPLICIT_DEF
    ; FAST-NEXT: [[TRUNC:%[0-9]+]]:sgpr(s1) = G_TRUNC [[DEF]](s32)
    ; FAST-NEXT: [[COPY2:%[0-9]+]]:vcc(s1) = COPY [[TRUNC]](s1)
    ; FAST-NEXT: [[SELECT:%[0-9]+]]:vgpr(s32) = G_SELECT [[COPY2]](s1), [[COPY]], [[COPY1]]
    ; FAST-NEXT: S_ENDPGM 0, implicit [[SELECT]](s32)
    ; GREEDY-LABEL: name: test_implicit_def_s1_explicit_vcc_use_0
    ; GREEDY: liveins: $vgpr0, $vgpr1
    ; GREEDY-NEXT: {{  $}}
    ; GREEDY-NEXT: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
    ; GREEDY-NEXT: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
    ; GREEDY-NEXT: [[DEF:%[0-9]+]]:vcc(s1) = G_IMPLICIT_DEF
    ; GREEDY-NEXT: [[SELECT:%[0-9]+]]:vgpr(s32) = G_SELECT [[DEF]](s1), [[COPY]], [[COPY1]]
    ; GREEDY-NEXT: S_ENDPGM 0, implicit [[SELECT]](s32)
    %0:_(s32) = COPY $vgpr0
    %1:_(s32) = COPY $vgpr1
    %2:vcc(s1) = G_IMPLICIT_DEF
    %3:_(s32) = G_SELECT %2, %0, %1
    S_ENDPGM 0, implicit %3

...

---
name: test_implicit_def_s1_explicit_vcc_use_1
legalized:       true
body: |
  bb.0:
    ; FAST-LABEL: name: test_implicit_def_s1_explicit_vcc_use_1
    ; FAST: [[DEF:%[0-9]+]]:sgpr(s32) = G_IMPLICIT_DEF
    ; FAST-NEXT: [[TRUNC:%[0-9]+]]:sgpr(s1) = G_TRUNC [[DEF]](s32)
    ; FAST-NEXT: [[COPY:%[0-9]+]]:vcc(s1) = COPY [[TRUNC]](s1)
    ; FAST-NEXT: S_ENDPGM 0, implicit [[COPY]](s1)
    ; GREEDY-LABEL: name: test_implicit_def_s1_explicit_vcc_use_1
    ; GREEDY: [[DEF:%[0-9]+]]:vcc(s1) = G_IMPLICIT_DEF
    ; GREEDY-NEXT: S_ENDPGM 0, implicit [[DEF]](s1)
    %2:vcc(s1) = G_IMPLICIT_DEF
    S_ENDPGM 0, implicit %2

...