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|
# RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs -run-pass post-RA-hazard-rec %s -o - | FileCheck -check-prefix=GCN -check-prefix=VI %s
# RUN: llc -march=amdgcn -mcpu=gfx803 -verify-machineinstrs -run-pass post-RA-hazard-rec %s -o - | FileCheck -check-prefix=GCN -check-prefix=GFX8 %s
# RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -run-pass post-RA-hazard-rec %s -o - | FileCheck -check-prefix=GCN -check-prefix=GFX9 %s
# GCN-LABEL: name: hazard_implicit_def
# GCN: bb.0.entry:
# GCN: $m0 = S_MOV_B32
# GFX9: S_NOP 0
# VI-NOT: S_NOP_0
# GCN: V_INTERP_P1_F32
---
name: hazard_implicit_def
alignment: 1
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
liveins:
- { reg: '$sgpr7', virtual-reg: '' }
- { reg: '$vgpr4', virtual-reg: '' }
body: |
bb.0.entry:
liveins: $sgpr7, $vgpr4
$m0 = S_MOV_B32 killed $sgpr7
$vgpr5 = IMPLICIT_DEF
$vgpr0 = V_INTERP_P1_F32 killed $vgpr4, 0, 0, implicit $mode, implicit $m0, implicit $exec
SI_RETURN_TO_EPILOG killed $vgpr5, killed $vgpr0
...
# GCN-LABEL: name: hazard_inlineasm
# GCN: bb.0.entry:
# GCN: $m0 = S_MOV_B32
# GFX9: S_NOP 0
# VI-NOT: S_NOP_0
# GCN: V_INTERP_P1_F32
---
name: hazard_inlineasm
alignment: 1
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
liveins:
- { reg: '$sgpr7', virtual-reg: '' }
- { reg: '$vgpr4', virtual-reg: '' }
body: |
bb.0.entry:
liveins: $sgpr7, $vgpr4
$m0 = S_MOV_B32 killed $sgpr7
INLINEASM &"; no-op", 1, 327690, def $vgpr5
$vgpr0 = V_INTERP_P1_F32 killed $vgpr4, 0, 0, implicit $mode, implicit $m0, implicit $exec
SI_RETURN_TO_EPILOG killed $vgpr5, killed $vgpr0
...
# IMPLICIT_DEF/DBG_VALUE instructions should not prevent the hazard recognizer
# from adding s_nop instructions between m0 update and s_sendmsg.
# GCN-LABEL: name: hazard-lookahead-implicit-def
# GCN: $vgpr6 = IMPLICIT_DEF
# GFX8-NEXT: S_NOP 0
# GFX9-NEXT: S_NOP 0
# GCN: S_SENDMSG 3, implicit $exec, implicit $m0
---
name: hazard-lookahead-implicit-def
body: |
bb.0:
$m0 = S_MOV_B32 killed $sgpr12
$vgpr0 = IMPLICIT_DEF
$vgpr1 = IMPLICIT_DEF
$vgpr2 = IMPLICIT_DEF
$vgpr3 = IMPLICIT_DEF
$vgpr4 = IMPLICIT_DEF
$vgpr5 = IMPLICIT_DEF
$vgpr6 = IMPLICIT_DEF
S_SENDMSG 3, implicit $exec, implicit $m0
S_ENDPGM 0
...
# GCN-LABEL: name: hazard-lookahead-dbg-value
# GCN: DBG_VALUE 6
# GFX8-NEXT: S_NOP 0
# GFX9-NEXT: S_NOP 0
# GCN: S_SENDMSG 3, implicit $exec, implicit $m0
---
name: hazard-lookahead-dbg-value
body: |
bb.0:
$m0 = S_MOV_B32 killed $sgpr12
DBG_VALUE 0
DBG_VALUE 1
DBG_VALUE 2
DBG_VALUE 3
DBG_VALUE 4
DBG_VALUE 5
DBG_VALUE 6
S_SENDMSG 3, implicit $exec, implicit $m0
S_ENDPGM 0
...
# GCN-LABEL: name: hazard-lookahead-dbg-label
# GCN: DBG_LABEL 6
# GFX8-NEXT: S_NOP 0
# GFX9-NEXT: S_NOP 0
# GCN: S_SENDMSG 3, implicit $exec, implicit $m0
---
name: hazard-lookahead-dbg-label
body: |
bb.0:
$m0 = S_MOV_B32 killed $sgpr12
DBG_LABEL 0
DBG_LABEL 1
DBG_LABEL 2
DBG_LABEL 3
DBG_LABEL 4
DBG_LABEL 5
DBG_LABEL 6
S_SENDMSG 3, implicit $exec, implicit $m0
S_ENDPGM 0
...
# GCN-LABEL: name: hazard-lookahead-wave-barrier
# GCN: S_WAITCNT 0
# GCN-NEXT: S_NOP 0
# GCN-NEXT: V_ADD_F16_dpp
---
name: hazard-lookahead-wave-barrier
body: |
bb.0:
liveins: $vgpr0, $vgpr1, $vgpr3
renamable $vgpr1 = contract nofpexcept V_ADD_F16_e32 killed $vgpr1, $vgpr0, implicit $mode, implicit $exec
WAVE_BARRIER
S_WAITCNT 0
renamable $vgpr2 = contract nofpexcept V_ADD_F16_dpp undef $vgpr2, 0, $vgpr1, 0, $vgpr3, 273, 15, 15, 1, implicit $mode, implicit $exec
...
# GCN-LABEL: name: hazard-lookahead-masked-unreachable
# GCN: SI_MASKED_UNREACHABLE
# GCN-NEXT: S_NOP 0
# GCN-NEXT: S_SENDMSG
---
name: hazard-lookahead-masked-unreachable
body: |
bb.0:
$m0 = S_MOV_B32 -1
SI_MASKED_UNREACHABLE
S_SENDMSG 3, implicit $exec, implicit $m0
bb.1:
S_ENDPGM 0
...
# GCN-LABEL: name: fallthrough-hazard-lookahead-masked-unreachable
# GCN: SI_MASKED_UNREACHABLE
# GCN-LABEL: bb.1:
# GCN-NEXT: S_NOP 0
# GCN-NEXT: S_SENDMSG
---
name: fallthrough-hazard-lookahead-masked-unreachable
body: |
bb.0:
$m0 = S_MOV_B32 -1
SI_MASKED_UNREACHABLE
bb.1:
S_SENDMSG 3, implicit $exec, implicit $m0
S_ENDPGM 0
...
# GCN-LABEL: name: buffer_store_lds_dword
# GCN: $m0 = S_MOV_B32 0
# GFX9-NEXT: S_NOP 0
# GCN-NEXT: BUFFER_STORE_LDS_DWORD
---
name: buffer_store_lds_dword
body: |
bb.0:
$m0 = S_MOV_B32 0
BUFFER_STORE_LDS_DWORD $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec, implicit $m0
...
# GCN-LABEL: name: lds_direct_read_m0
# GCN: $m0 = S_MOV_B32 0
# GFX9-NEXT: S_NOP 0
# GCN-NEXT: V_MOV_B32
---
name: lds_direct_read_m0
body: |
bb.0:
$m0 = S_MOV_B32 0
$vgpr0 = V_MOV_B32_e32 $lds_direct, implicit $exec, implicit $m0
...
|
