waitcnt-vmem-waw.mir
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# 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=GFX9 %s
# Two buffer loads with overlapping outputs. No waitcnt required.
---
name: buffer_buffer
tracksRegLiveness: true
body: |
bb.0:
liveins: $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, $sgpr5
; GFX9-LABEL: name: buffer_buffer
; GFX9: liveins: $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, $sgpr5
; GFX9: S_WAITCNT 0
; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3 = BUFFER_LOAD_DWORDX4_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
; GFX9: $vgpr1 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr5, 0, 0, 0, 0, 0, 0, implicit $exec
$vgpr0_vgpr1_vgpr2_vgpr3 = BUFFER_LOAD_DWORDX4_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, 0, 0, 0, implicit $exec
$vgpr1 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr5, 0, 0, 0, 0, 0, 0, implicit $exec
...
# Two tbuffer loads with overlapping outputs. No waitcnt required.
---
name: tbuffer_tbuffer
tracksRegLiveness: true
body: |
bb.0:
liveins: $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, $sgpr5
; GFX9-LABEL: name: tbuffer_tbuffer
; GFX9: liveins: $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, $sgpr5
; GFX9: S_WAITCNT 0
; GFX9: $vgpr0_vgpr1_vgpr2 = TBUFFER_LOAD_FORMAT_XYZ_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, 0, 4, 125, 0, 0, 0, 0, 0, implicit $exec
; GFX9: $vgpr0 = TBUFFER_LOAD_FORMAT_X_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, 0, 16, 116, 0, 0, 0, 0, 0, implicit $exec
$vgpr0_vgpr1_vgpr2 = TBUFFER_LOAD_FORMAT_XYZ_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, 0, 4, 125, 0, 0, 0, 0, 0, implicit $exec
$vgpr0 = TBUFFER_LOAD_FORMAT_X_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, 0, 16, 116, 0, 0, 0, 0, 0, implicit $exec
...
# Two gathers with overlapping outputs. (Note gathers can't be trimmed because
# dmask means something different.) No waitcnt required.
---
name: gather_gather
tracksRegLiveness: true
body: |
bb.0:
liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, $sgpr8_sgpr9_sgpr10_sgpr11, $vgpr0_vgpr1_vgpr2, $vgpr3_vgpr4_vgpr5
; GFX9-LABEL: name: gather_gather
; GFX9: liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, $sgpr8_sgpr9_sgpr10_sgpr11, $vgpr0_vgpr1_vgpr2, $vgpr3_vgpr4_vgpr5
; GFX9: S_WAITCNT 0
; GFX9: $vgpr10_vgpr11_vgpr12_vgpr13 = IMAGE_GATHER4_LZ_O_V4_V3 $vgpr0_vgpr1_vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, $sgpr8_sgpr9_sgpr10_sgpr11, 1, 0, 0, 0, 0, 0, 0, 0, 0, implicit $exec
; GFX9: $vgpr13_vgpr14_vgpr15_vgpr16 = IMAGE_GATHER4_LZ_O_V4_V3 $vgpr3_vgpr4_vgpr5, $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, $sgpr8_sgpr9_sgpr10_sgpr11, 1, 0, 0, 0, 0, 0, 0, 0, 0, implicit $exec
$vgpr10_vgpr11_vgpr12_vgpr13 = IMAGE_GATHER4_LZ_O_V4_V3 $vgpr0_vgpr1_vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, $sgpr8_sgpr9_sgpr10_sgpr11, 1, 0, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (load 16)
$vgpr13_vgpr14_vgpr15_vgpr16 = IMAGE_GATHER4_LZ_O_V4_V3 $vgpr3_vgpr4_vgpr5, $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, $sgpr8_sgpr9_sgpr10_sgpr11, 1, 0, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (load 16)
...
# Image load vs image sample. Waitcnt required because they are not guaranteed
# to write their results in order, despite both using the s_waitcnt vmcnt
# counter.
---
name: nosampler_sampler
tracksRegLiveness: true
body: |
bb.0:
liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, $sgpr8_sgpr9_sgpr10_sgpr11, $vgpr0_vgpr1_vgpr2_vgpr3
; GFX9-LABEL: name: nosampler_sampler
; GFX9: liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, $sgpr8_sgpr9_sgpr10_sgpr11, $vgpr0_vgpr1_vgpr2_vgpr3
; GFX9: S_WAITCNT 0
; GFX9: $vgpr4 = IMAGE_LOAD_V1_V4 $vgpr0_vgpr1_vgpr2_vgpr3, $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, 2, -1, 0, 0, 0, 0, 0, 0, 0, implicit $exec
; GFX9: S_WAITCNT 3952
; GFX9: $vgpr4 = IMAGE_SAMPLE_L_V1_V4 $vgpr0_vgpr1_vgpr2_vgpr3, $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, $sgpr8_sgpr9_sgpr10_sgpr11, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec
$vgpr4 = IMAGE_LOAD_V1_V4 $vgpr0_vgpr1_vgpr2_vgpr3, $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, 2, -1, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (load 16)
$vgpr4 = IMAGE_SAMPLE_L_V1_V4 $vgpr0_vgpr1_vgpr2_vgpr3, $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, $sgpr8_sgpr9_sgpr10_sgpr11, 8, 0, 0, 0, 0, 0, 0, -1, 0, implicit $exec :: (load 16)
...