# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 6
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1250 -run-pass si-insert-waitcnts -o - %s | FileCheck -check-prefix=GCN %s

---
name: drain_cbranch
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  ; GCN-LABEL: name: drain_cbranch
  ; GCN: bb.0:
  ; GCN-NEXT:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; GCN-NEXT:   liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $scc
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
  ; GCN-NEXT:   V_NOP_e32 implicit $exec
  ; GCN-NEXT:   GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
  ; GCN-NEXT:   S_CBRANCH_SCC1 %bb.2, implicit $scc
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.1:
  ; GCN-NEXT:   liveins: $vgpr3
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
  ; GCN-NEXT:   S_ENDPGM 0
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.2:
  ; GCN-NEXT:   liveins: $vgpr3
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   $vgpr2 = V_LSHLREV_B32_e64 32, $vgpr3, implicit $exec
  ; GCN-NEXT:   S_ENDPGM 0
  bb.0:
    successors: %bb.1, %bb.2
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $scc
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_CBRANCH_SCC1 %bb.2, implicit $scc

  bb.1:
    liveins: $vgpr3
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0

  bb.2:
    liveins: $vgpr3
    $vgpr2 = V_LSHLREV_B32_e64 32, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_call
tracksRegLiveness: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $sgpr0_sgpr1
    ; GCN-LABEL: name: drain_call
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $sgpr0_sgpr1
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: S_WAIT_LOADCNT_DSCNT .Loadcnt_0_Dscnt_0
    ; GCN-NEXT: S_WAIT_KMCNT 0
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: $sgpr30_sgpr31 = SI_CALL killed $sgpr0_sgpr1, 0, csr_amdgpu
    ; GCN-NEXT: $vgpr2 = V_MOV_B32_e32 0, implicit $exec
    ; GCN-NEXT: SI_RETURN implicit $vgpr2
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    $sgpr30_sgpr31 = SI_CALL killed $sgpr0_sgpr1, 0, csr_amdgpu
    $vgpr2 = V_MOV_B32_e32 0, implicit $exec
    SI_RETURN implicit $vgpr2
...

---
name: drain_indirect_branch
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  ; GCN-LABEL: name: drain_indirect_branch
  ; GCN: bb.0:
  ; GCN-NEXT:   successors: %bb.1(0x80000000)
  ; GCN-NEXT:   liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $sgpr0_sgpr1
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
  ; GCN-NEXT:   V_NOP_e32 implicit $exec
  ; GCN-NEXT:   GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
  ; GCN-NEXT:   S_SETPC_B64 $sgpr0_sgpr1
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.1:
  ; GCN-NEXT:   liveins: $vgpr3
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
  ; GCN-NEXT:   S_ENDPGM 0
  bb.0:
    successors: %bb.1
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $sgpr0_sgpr1
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_SETPC_B64 $sgpr0_sgpr1

  bb.1:
    liveins: $vgpr3
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_trap
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-LABEL: name: drain_trap
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: S_TRAP 0
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_TRAP 0
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_getreg
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-LABEL: name: drain_getreg
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: $sgpr0 = S_GETREG_B32 1, implicit $mode
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    $sgpr0 = S_GETREG_B32 1, implicit $mode
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_setreg
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $sgpr0
    ; GCN-LABEL: name: drain_setreg
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $sgpr0
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: S_SETREG_B32 $sgpr0, 1, implicit-def $mode, implicit $mode
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_SETREG_B32 $sgpr0, 1, implicit-def $mode, implicit $mode
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_setreg_mode
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $sgpr0
    ; GCN-LABEL: name: drain_setreg_mode
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $sgpr0
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: S_SETREG_B32_mode $sgpr0, 1, implicit-def $mode, implicit $mode
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_SETREG_B32_mode $sgpr0, 1, implicit-def $mode, implicit $mode
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_setreg_imm32
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-LABEL: name: drain_setreg_imm32
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: S_SETREG_IMM32_B32 0, 1, implicit-def $mode, implicit $mode
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_SETREG_IMM32_B32 0, 1, implicit-def $mode, implicit $mode
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_setreg_imm32_mode
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-LABEL: name: drain_setreg_imm32_mode
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: S_SETREG_IMM32_B32_mode 0, 1, implicit-def $mode, implicit $mode
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_SETREG_IMM32_B32_mode 0, 1, implicit-def $mode, implicit $mode
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_sendmsg
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $m0
    ; GCN-LABEL: name: drain_sendmsg
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $m0
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: S_SENDMSG 1, implicit $exec, implicit $m0
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_SENDMSG 1, implicit $exec, implicit $m0
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_sendmsg_halt
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $m0
    ; GCN-LABEL: name: drain_sendmsg_halt
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $m0
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: S_SENDMSGHALT 1, implicit $exec, implicit $m0
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_SENDMSGHALT 1, implicit $exec, implicit $m0
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_sendmsg_rtn_b32
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-LABEL: name: drain_sendmsg_rtn_b32
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: $sgpr0 = S_SENDMSG_RTN_B32 1
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    $sgpr0 = S_SENDMSG_RTN_B32 1
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_sendmsg_rtn_b64
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-LABEL: name: drain_sendmsg_rtn_b64
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: $sgpr0_sgpr1 = S_SENDMSG_RTN_B64 1
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    $sgpr0_sgpr1 = S_SENDMSG_RTN_B64 1
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_barrier_wait
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-LABEL: name: drain_barrier_wait
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: S_BARRIER_WAIT 1
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_BARRIER_WAIT 1
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_barrier_signal_m0
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $m0
    ; GCN-LABEL: name: drain_barrier_signal_m0
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $m0
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: S_BARRIER_SIGNAL_M0 implicit $m0
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_BARRIER_SIGNAL_M0 implicit $m0
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_barrier_signal
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-LABEL: name: drain_barrier_signal
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: S_BARRIER_SIGNAL_IMM 1
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_BARRIER_SIGNAL_IMM 1
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_barrier_signal_isfirst_m0
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $m0, $scc
    ; GCN-LABEL: name: drain_barrier_signal_isfirst_m0
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $m0, $scc
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: S_BARRIER_SIGNAL_ISFIRST_M0 implicit $m0, implicit-def $scc, implicit $scc
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_BARRIER_SIGNAL_ISFIRST_M0 implicit $m0, implicit-def $scc, implicit $scc
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...

---
name: drain_barrier_signal_isfirst
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $scc
    ; GCN-LABEL: name: drain_barrier_signal_isfirst
    ; GCN: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $scc
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: GLOBAL_PREFETCH_B8_SADDR undef $sgpr0_sgpr1, undef $vgpr0, 0, 8, implicit $exec
    ; GCN-NEXT: V_NOP_e32 implicit $exec
    ; GCN-NEXT: GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    ; GCN-NEXT: S_BARRIER_SIGNAL_ISFIRST_IMM 1, implicit-def $scc, implicit $scc
    ; GCN-NEXT: $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    ; GCN-NEXT: S_ENDPGM 0
    GLOBAL_STORE_DWORD killed $vgpr0_vgpr1, $vgpr2, 0, 0, implicit $exec
    S_BARRIER_SIGNAL_ISFIRST_IMM 1, implicit-def $scc, implicit $scc
    $vgpr2 = V_LSHLREV_B32_e64 16, $vgpr3, implicit $exec
    S_ENDPGM 0
...