test/CodeGen/AMDGPU/waitcnt-meta-instructions.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -run-pass=si-insert-waitcnts -o - %s | FileCheck -check-prefix=GCN %s

# Make sure no waitcnt is inserted for meta instruction uses.

---

name: waitcnt_kill

body:             |
  bb.0:
    liveins: $vgpr0_vgpr1
    ; GCN-LABEL: name: waitcnt_kill
    ; GCN: liveins: $vgpr0_vgpr1
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: S_WAITCNT 0
    ; GCN-NEXT: $vgpr0 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
    ; GCN-NEXT: KILL $vgpr0
    $vgpr0 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
    KILL $vgpr0
...

---

name: waitcnt_implicit_def

body:             |
  bb.0:
    liveins: $vgpr0_vgpr1
    ; GCN-LABEL: name: waitcnt_implicit_def
    ; GCN: liveins: $vgpr0_vgpr1
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: S_WAITCNT 0
    ; GCN-NEXT: $vgpr0 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
    ; GCN-NEXT: $vgpr0 = IMPLICIT_DEF
    $vgpr0 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
    $vgpr0 = IMPLICIT_DEF
...

---

name: waitcnt_eh_label

body:             |
  bb.0:
    liveins: $vgpr0_vgpr1, $vgpr2
    ; GCN-LABEL: name: waitcnt_eh_label
    ; GCN: liveins: $vgpr0_vgpr1, $vgpr2
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: S_WAITCNT 0
    ; GCN-NEXT: $vgpr0 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
    ; GCN-NEXT: EH_LABEL <mcsymbol Ltmp0>, implicit $vgpr0
    $vgpr0 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
    EH_LABEL <mcsymbol Ltmp0>, implicit $vgpr0

...

---

name: waitcnt_cfi

body:             |
  bb.0:
    liveins: $vgpr0_vgpr1, $vgpr2
    ; GCN-LABEL: name: waitcnt_cfi
    ; GCN: liveins: $vgpr0_vgpr1, $vgpr2
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: S_WAITCNT 0
    ; GCN-NEXT: $vgpr0 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
    ; GCN-NEXT: CFI_INSTRUCTION offset $vgpr0_lo16, 16
    $vgpr0 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
    CFI_INSTRUCTION offset $vgpr0, 16

...