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[AMDGPU] More tests for S_WAIT_XCNT insertion #145681

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Merged
jayfoad merged 1 commit into from
Jun 26, 2025
Merged

[AMDGPU] More tests for S_WAIT_XCNT insertion #145681

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46 changes: 46 additions & 0 deletions llvm/test/CodeGen/AMDGPU/wait-xcnt.mir
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Original file line number Diff line number Diff line change
Expand Up @@ -920,3 +920,49 @@ body: |
GLOBAL_STORE_DWORD $vgpr0_vgpr1, $vgpr3, 0, 0, implicit $exec
$vgpr2 = V_MOV_B32_e32 1, implicit $exec
...

# FIXME: Missing S_WAIT_XCNT before overwriting vgpr0.
---
name: wait_kmcnt_with_outstanding_vmem
tracksRegLiveness: true
machineFunctionInfo:
isEntryFunction: true
body: |
bb.0:
liveins: $vgpr0_vgpr1, $sgpr0_sgpr1
; GCN-LABEL: name: wait_kmcnt_with_outstanding_vmem
; GCN: liveins: $vgpr0_vgpr1, $sgpr0_sgpr1
; GCN-NEXT: {{ $}}
; GCN-NEXT: $sgpr2 = S_LOAD_DWORD_IMM $sgpr0_sgpr1, 0, 0
; GCN-NEXT: $vgpr2 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
; GCN-NEXT: S_WAIT_KMCNT 0
; GCN-NEXT: $sgpr2 = S_MOV_B32 $sgpr2
; GCN-NEXT: $vgpr0 = V_MOV_B32_e32 0, implicit $exec
$sgpr2 = S_LOAD_DWORD_IMM $sgpr0_sgpr1, 0, 0
$vgpr2 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
$sgpr2 = S_MOV_B32 $sgpr2
$vgpr0 = V_MOV_B32_e32 0, implicit $exec
...

# FIXME: Missing S_WAIT_XCNT before overwriting sgpr0.
---
name: wait_loadcnt_with_outstanding_smem
tracksRegLiveness: true
machineFunctionInfo:
isEntryFunction: true
body: |
bb.0:
liveins: $vgpr0_vgpr1, $sgpr0_sgpr1
; GCN-LABEL: name: wait_loadcnt_with_outstanding_smem
; GCN: liveins: $vgpr0_vgpr1, $sgpr0_sgpr1
; GCN-NEXT: {{ $}}
; GCN-NEXT: $vgpr2 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
; GCN-NEXT: $sgpr2 = S_LOAD_DWORD_IMM $sgpr0_sgpr1, 0, 0
; GCN-NEXT: S_WAIT_LOADCNT 0
; GCN-NEXT: $vgpr2 = V_MOV_B32_e32 $vgpr2, implicit $exec
; GCN-NEXT: $sgpr0 = S_MOV_B32 0
$vgpr2 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
$sgpr2 = S_LOAD_DWORD_IMM $sgpr0_sgpr1, 0, 0
$vgpr2 = V_MOV_B32_e32 $vgpr2, implicit $exec
$sgpr0 = S_MOV_B32 0
...
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