test/CodeGen/AMDGPU/lds-dma-waitcnt.mir

# RUN: llc -march=amdgcn -mcpu=gfx940 -verify-machineinstrs -run-pass si-insert-waitcnts -o - %s | FileCheck -check-prefix=GCN %s

# GCN-LABEL: name: buffer_load_dword_lds_ds_read
# GCN:      BUFFER_LOAD_DWORD_LDS_IDXEN
# GCN-NEXT: S_WAITCNT 3952
#                     vmcnt(0)
# GCN-NEXT: DS_READ_B32_gfx9
---
name: buffer_load_dword_lds_ds_read
body:             |
  bb.0:
    $m0 = S_MOV_B32 0
    BUFFER_LOAD_DWORD_LDS_IDXEN $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 4, 0, 0, implicit $exec, implicit $m0 :: (load (s32) from `i32 addrspace(1)* undef` + 4), (store (s32) into `i32 addrspace(3)* undef` + 4)
    $vgpr0 = DS_READ_B32_gfx9 $vgpr1, 0, 0, implicit $m0, implicit $exec :: (load (s32) from `i32 addrspace(3)* undef`)
    S_ENDPGM 0

...

# GCN-LABEL: name: buffer_load_dword_lds_vmcnt_1
# GCN:      BUFFER_LOAD_DWORD_LDS_IDXEN
# GCN-NEXT: BUFFER_LOAD_DWORD_IDXEN
# GCN-NEXT: S_WAITCNT 3953
#                     vmcnt(1)
# GCN-NEXT: DS_READ_B32_gfx9
---
name: buffer_load_dword_lds_vmcnt_1
body:             |
  bb.0:
    $m0 = S_MOV_B32 0
    BUFFER_LOAD_DWORD_LDS_IDXEN $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 4, 0, 0, implicit $exec, implicit $m0 :: (load (s32) from `i32 addrspace(1)* undef`), (store (s32) into `i32 addrspace(3)* undef`)
    $vgpr10 = BUFFER_LOAD_DWORD_IDXEN $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 4, 0, 0, 0, implicit $exec, implicit $m0 :: (load (s32) from `i32 addrspace(1)* undef`)
    $vgpr0 = DS_READ_B32_gfx9 $vgpr1, 0, 0, implicit $m0, implicit $exec :: (load (s32) from `i32 addrspace(3)* undef`)
    S_ENDPGM 0

...

# GCN-LABEL: name: buffer_load_dword_lds_flat_read
# GCN:      BUFFER_LOAD_DWORD_LDS_IDXEN
# GCN-NEXT: S_WAITCNT 3952
#                     vmcnt(0)
# GCN-NEXT: FLAT_LOAD_DWORD
---
name: buffer_load_dword_lds_flat_read
body:             |
  bb.0:
    $m0 = S_MOV_B32 0
    BUFFER_LOAD_DWORD_LDS_IDXEN $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 4, 0, 0, implicit $exec, implicit $m0 :: (load (s32) from `i32 addrspace(1)* undef`), (store (s32) into `i32 addrspace(3)* undef`)
    $vgpr0 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from `i32* undef`)

    S_ENDPGM 0

...

# GCN-LABEL: name: global_load_lds_dword_ds_read
# GCN:      GLOBAL_LOAD_LDS_DWORD
# GCN-NEXT: S_WAITCNT 3952
#                     vmcnt(0)
# GCN-NEXT: DS_READ_B32_gfx9
---
name: global_load_lds_dword_ds_read
body:             |
  bb.0:
    $m0 = S_MOV_B32 0
    GLOBAL_LOAD_LDS_DWORD $vgpr0_vgpr1, 4, 0, implicit $exec, implicit $m0 :: (load (s32) from `i32 addrspace(1)* undef` + 4), (store (s32) into `i32 addrspace(3)* undef` + 4)
    $vgpr0 = DS_READ_B32_gfx9 $vgpr1, 0, 0, implicit $m0, implicit $exec :: (load (s32) from `i32 addrspace(3)* undef`)
    S_ENDPGM 0

...

# GCN-LABEL: name: scratch_load_lds_dword_ds_read
# GCN:      SCRATCH_LOAD_LDS_DWORD
# GCN-NEXT: S_WAITCNT 3952
#                     vmcnt(0)
# GCN-NEXT: DS_READ_B32_gfx9
---
name: scratch_load_lds_dword_ds_read
body:             |
  bb.0:
    $m0 = S_MOV_B32 0
    SCRATCH_LOAD_LDS_DWORD $vgpr0, 4, 0, implicit $exec, implicit $m0 :: (load (s32) from `i32 addrspace(5)* undef` + 4), (store (s32) into `i32 addrspace(3)* undef` + 4)
    $vgpr0 = DS_READ_B32_gfx9 $vgpr1, 0, 0, implicit $m0, implicit $exec :: (load (s32) from `i32 addrspace(3)* undef`)
    S_ENDPGM 0

...

# GCN-LABEL: name: buffer_store_lds_dword_ds_read
# GCN:      BUFFER_STORE_LDS_DWORD
# GCN-NEXT: DS_READ_B32_gfx9
---
name: buffer_store_lds_dword_ds_read
body:             |
  bb.0:
    $m0 = S_MOV_B32 0
    BUFFER_STORE_LDS_DWORD $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 4, 0, 0, implicit $exec, implicit $m0 :: (load (s32) from `i32 addrspace(3)* undef` + 4), (store (s32) into `i32 addrspace(1)* undef` + 4)
    $vgpr0 = DS_READ_B32_gfx9 $vgpr1, 0, 0, implicit $m0, implicit $exec :: (load (s32) from `i32 addrspace(3)* undef`)
    S_ENDPGM 0

...

# No need to wait before load from VMEM to LDS.
# GCN-LABEL: name: series_of_buffer_load_dword_lds_ds_read
# GCN:      BUFFER_LOAD_DWORD_LDS_IDXEN
# GCN-NEXT: BUFFER_LOAD_DWORD_LDS_IDXEN
# GCN-NEXT: BUFFER_LOAD_DWORD_LDS_IDXEN
# GCN-NEXT: S_WAITCNT 3952
#                     vmcnt(0)
# GCN-NEXT: DS_READ_B32_gfx9
---
name: series_of_buffer_load_dword_lds_ds_read
body:             |
  bb.0:
    $m0 = S_MOV_B32 0
    BUFFER_LOAD_DWORD_LDS_IDXEN $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 0, 0, 0, implicit $exec, implicit $m0 :: (load (s32) from `i32 addrspace(1)* undef`), (store (s32) into `i32 addrspace(3)* undef`)
    BUFFER_LOAD_DWORD_LDS_IDXEN $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 4, 0, 0, implicit $exec, implicit $m0 :: (load (s32) from `i32 addrspace(1)* undef` + 4), (store (s32) into `i32 addrspace(3)* undef` + 4)
    BUFFER_LOAD_DWORD_LDS_IDXEN $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4, 8, 0, 0, implicit $exec, implicit $m0 :: (load (s32) from `i32 addrspace(1)* undef` + 8), (store (s32) into `i32 addrspace(3)* undef` + 8)
    $vgpr0 = DS_READ_B32_gfx9 $vgpr1, 0, 0, implicit $m0, implicit $exec :: (load (s32) from `i32 addrspace(3)* undef`)
    S_ENDPGM 0

...