lds-branch-vmem-hazard.mir
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# RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs -run-pass post-RA-hazard-rec -o - %s | FileCheck -check-prefix=GCN %s
# GCN-LABEL: name: hazard_lds_branch_buf
# GCN: S_WAITCNT_VSCNT undef $sgpr_null, 0
# GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
---
name: hazard_lds_branch_buf
body: |
bb.0:
successors: %bb.1
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: hazard_buf_branch_lds
# GCN: S_WAITCNT_VSCNT undef $sgpr_null, 0
# GCN-NEXT: DS_READ_B32
---
name: hazard_buf_branch_lds
body: |
bb.0:
successors: %bb.1
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: no_hazard_lds_branch_lds
# GCN: bb.1:
# GCN-NEXT: DS_READ_B32
---
name: no_hazard_lds_branch_lds
body: |
bb.0:
successors: %bb.1
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: no_hazard_buf_branch_buf
# GCN: bb.1:
# GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
---
name: no_hazard_buf_branch_buf
body: |
bb.0:
successors: %bb.1
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: no_hazard_lds_branch_buf_fallthrough
# GCN: bb.1:
# GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
---
name: no_hazard_lds_branch_buf_fallthrough
body: |
bb.0:
successors: %bb.1
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
bb.1:
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: no_hazard_lds_branch_buf_samebb
# GCN: DS_READ_B32
# GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
---
name: no_hazard_lds_branch_buf_samebb
body: |
bb.0:
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: hazard_lds_branch_buf_loop
# GCN: S_WAITCNT_VSCNT undef $sgpr_null, 0
# GCN-NEXT: DS_READ_B32
# GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
---
name: hazard_lds_branch_buf_loop
body: |
bb.0:
successors: %bb.0
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_BRANCH %bb.0
...
# GCN-LABEL: name: single_hazard_lds_branch_buf
# GCN: S_WAITCNT_VSCNT undef $sgpr_null, 0
# GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
# GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
---
name: single_hazard_lds_branch_buf
body: |
bb.0:
successors: %bb.1
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: no_hazard_lds_branch_lds_buf
# GCN: bb.1:
# GCN-NEXT: DS_READ_B32
# GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
---
name: no_hazard_lds_branch_lds_buf
body: |
bb.0:
successors: %bb.1
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: no_hazard_lds_buf_branch_buf
# GCN: bb.1:
# GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
---
name: no_hazard_lds_buf_branch_buf
body: |
bb.0:
successors: %bb.1
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: hazard_lds_branch_vscnt_1_buf
# GCN: S_WAITCNT_VSCNT undef $sgpr_null, 0
# GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
---
name: hazard_lds_branch_vscnt_1_buf
body: |
bb.0:
successors: %bb.1
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
S_BRANCH %bb.1
bb.1:
S_WAITCNT_VSCNT undef $sgpr_null, 1
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: no_hazard_lds_branch_vscnt_0_buf
# GCN: bb.1:
# GCN-NEXT: S_WAITCNT_VSCNT undef $sgpr_null, 0
# GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
---
name: no_hazard_lds_branch_vscnt_0_buf
body: |
bb.0:
successors: %bb.1
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
S_BRANCH %bb.1
bb.1:
S_WAITCNT_VSCNT undef $sgpr_null, 0
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: hazard_lds_branch_vscnt_s0_buf
# GCN: S_WAITCNT_VSCNT undef $sgpr_null, 0
# GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
---
name: hazard_lds_branch_vscnt_s0_buf
body: |
bb.0:
successors: %bb.1
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
S_BRANCH %bb.1
bb.1:
S_WAITCNT_VSCNT undef $sgpr0, 0
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: no_hazard_lds_vscnt_0_branch_buf
# GCN: bb.1:
# GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
---
name: no_hazard_lds_vscnt_0_branch_buf
body: |
bb.0:
successors: %bb.1
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
S_WAITCNT_VSCNT undef $sgpr_null, 0
S_BRANCH %bb.1
bb.1:
$vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: hazard_lds_branch_global
# GCN: S_WAITCNT_VSCNT undef $sgpr_null, 0
# GCN-NEXT: GLOBAL_LOAD_DWORD
---
name: hazard_lds_branch_global
body: |
bb.0:
successors: %bb.1
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = GLOBAL_LOAD_DWORD undef $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: hazard_lds_branch_scratch
# GCN: S_WAITCNT_VSCNT undef $sgpr_null, 0
# GCN-NEXT: SCRATCH_LOAD_DWORD
---
name: hazard_lds_branch_scratch
body: |
bb.0:
successors: %bb.1
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = SCRATCH_LOAD_DWORD undef $vgpr0, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
S_ENDPGM 0
...
# GCN-LABEL: name: no_hazard_lds_branch_flat
# GCN: bb.1:
# GCN-NEXT: FLAT_LOAD_DWORD
---
name: no_hazard_lds_branch_flat
body: |
bb.0:
successors: %bb.1
$vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = FLAT_LOAD_DWORD undef $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr
S_ENDPGM 0
...