llvm/test/CodeGen/AMDGPU/lds-branch-vmem-hazard.mir

   1 # RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs -run-pass post-RA-hazard-rec -o - %s | FileCheck -check-prefixes=GCN,GFX10 %s
   2 # RUN: llc -march=amdgcn -mcpu=gfx1100 -verify-machineinstrs -run-pass post-RA-hazard-rec -o - %s | FileCheck -check-prefixes=GCN %s
   3
   4 # GCN-LABEL: name: hazard_lds_branch_buf
   5 # GCN:        bb.1:
   6 # GFX10-NEXT: S_WAITCNT_VSCNT undef $sgpr_null, 0
   7 # GCN-NEXT:   BUFFER_LOAD_DWORD_OFFEN
   8 ---
   9 name:            hazard_lds_branch_buf
  10 body:            |
  11   bb.0:
  12     successors: %bb.1
  13     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
  14     S_BRANCH %bb.1
  15
  16   bb.1:
  17     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
  18     S_ENDPGM 0
  19 ...
  20
  21 # GCN-LABEL: name: hazard_buf_branch_lds
  22 # GCN:        bb.1:
  23 # GFX10-NEXT: S_WAITCNT_VSCNT undef $sgpr_null, 0
  24 # GCN-NEXT:   DS_READ_B32
  25 ---
  26 name:            hazard_buf_branch_lds
  27 body:            |
  28   bb.0:
  29     successors: %bb.1
  30     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
  31     S_BRANCH %bb.1
  32
  33   bb.1:
  34     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
  35     S_ENDPGM 0
  36 ...
  37
  38 # GCN-LABEL: name: no_hazard_lds_branch_lds
  39 # GCN:       bb.1:
  40 # GCN-NEXT:  DS_READ_B32
  41 ---
  42 name:            no_hazard_lds_branch_lds
  43 body:            |
  44   bb.0:
  45     successors: %bb.1
  46     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
  47     S_BRANCH %bb.1
  48
  49   bb.1:
  50     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
  51     S_ENDPGM 0
  52 ...
  53
  54 # GCN-LABEL: name: no_hazard_buf_branch_buf
  55 # GCN:      bb.1:
  56 # GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
  57 ---
  58 name:            no_hazard_buf_branch_buf
  59 body:            |
  60   bb.0:
  61     successors: %bb.1
  62     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
  63     S_BRANCH %bb.1
  64
  65   bb.1:
  66     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
  67     S_ENDPGM 0
  68 ...
  69
  70 # GCN-LABEL: name: no_hazard_lds_branch_buf_fallthrough
  71 # GCN:      bb.1:
  72 # GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
  73 ---
  74 name:            no_hazard_lds_branch_buf_fallthrough
  75 body:            |
  76   bb.0:
  77     successors: %bb.1
  78     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
  79
  80   bb.1:
  81     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
  82     S_ENDPGM 0
  83 ...
  84
  85 # GCN-LABEL: name: no_hazard_lds_branch_buf_samebb
  86 # GCN:      DS_READ_B32
  87 # GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
  88 ---
  89 name:            no_hazard_lds_branch_buf_samebb
  90 body:            |
  91   bb.0:
  92     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
  93     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
  94     S_ENDPGM 0
  95 ...
  96
  97 # GCN-LABEL: name: hazard_lds_branch_buf_loop
  98 # GFX10:    S_WAITCNT_VSCNT undef $sgpr_null, 0
  99 # GCN:      DS_READ_B32
 100 # GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
 101 ---
 102 name:            hazard_lds_branch_buf_loop
 103 body:            |
 104   bb.0:
 105     successors: %bb.0
 106     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
 107     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
 108     S_BRANCH %bb.0
 109 ...
 110
 111 # GCN-LABEL: name: single_hazard_lds_branch_buf
 112 # GCN:        bb.1:
 113 # GFX10-NEXT: S_WAITCNT_VSCNT undef $sgpr_null, 0
 114 # GCN-NEXT:   BUFFER_LOAD_DWORD_OFFEN
 115 # GCN-NEXT:   BUFFER_LOAD_DWORD_OFFEN
 116 ---
 117 name:            single_hazard_lds_branch_buf
 118 body:            |
 119   bb.0:
 120     successors: %bb.1
 121     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
 122     S_BRANCH %bb.1
 123
 124   bb.1:
 125     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
 126     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
 127     S_ENDPGM 0
 128 ...
 129
 130 # GCN-LABEL: name: no_hazard_lds_branch_lds_buf
 131 # GCN:      bb.1:
 132 # GCN-NEXT: DS_READ_B32
 133 # GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
 134 ---
 135 name:            no_hazard_lds_branch_lds_buf
 136 body:            |
 137   bb.0:
 138     successors: %bb.1
 139     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
 140     S_BRANCH %bb.1
 141
 142   bb.1:
 143     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
 144     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
 145     S_ENDPGM 0
 146 ...
 147
 148 # GCN-LABEL: name: no_hazard_lds_buf_branch_buf
 149 # GCN:      bb.1:
 150 # GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
 151 ---
 152 name:            no_hazard_lds_buf_branch_buf
 153 body:            |
 154   bb.0:
 155     successors: %bb.1
 156     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
 157     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
 158     S_BRANCH %bb.1
 159
 160   bb.1:
 161     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
 162     S_ENDPGM 0
 163 ...
 164
 165 # GCN-LABEL: name: hazard_lds_branch_vscnt_1_buf
 166 # GCN:        bb.1:
 167 # GCN-NEXT:   S_WAITCNT_VSCNT undef $sgpr_null, 1
 168 # GFX10-NEXT: S_WAITCNT_VSCNT undef $sgpr_null, 0
 169 # GCN-NEXT:   BUFFER_LOAD_DWORD_OFFEN
 170 ---
 171 name:            hazard_lds_branch_vscnt_1_buf
 172 body:            |
 173   bb.0:
 174     successors: %bb.1
 175     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
 176     S_BRANCH %bb.1
 177
 178   bb.1:
 179     S_WAITCNT_VSCNT undef $sgpr_null, 1
 180     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
 181     S_ENDPGM 0
 182 ...
 183
 184 # GCN-LABEL: name: no_hazard_lds_branch_vscnt_0_buf
 185 # GCN:      bb.1:
 186 # GCN-NEXT: S_WAITCNT_VSCNT undef $sgpr_null, 0
 187 # GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
 188 ---
 189 name:            no_hazard_lds_branch_vscnt_0_buf
 190 body:            |
 191   bb.0:
 192     successors: %bb.1
 193     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
 194     S_BRANCH %bb.1
 195
 196   bb.1:
 197     S_WAITCNT_VSCNT undef $sgpr_null, 0
 198     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
 199     S_ENDPGM 0
 200 ...
 201
 202 # GCN-LABEL: name: hazard_lds_branch_vscnt_s0_buf
 203 # GCN:        bb.1:
 204 # GCN-NEXT:   S_WAITCNT_VSCNT undef $sgpr0, 0
 205 # GFX10-NEXT: S_WAITCNT_VSCNT undef $sgpr_null, 0
 206 # GCN-NEXT:   BUFFER_LOAD_DWORD_OFFEN
 207 ---
 208 name:            hazard_lds_branch_vscnt_s0_buf
 209 body:            |
 210   bb.0:
 211     successors: %bb.1
 212     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
 213     S_BRANCH %bb.1
 214
 215   bb.1:
 216     S_WAITCNT_VSCNT undef $sgpr0, 0
 217     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
 218     S_ENDPGM 0
 219 ...
 220
 221 # GCN-LABEL: name: no_hazard_lds_vscnt_0_branch_buf
 222 # GCN:      bb.1:
 223 # GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
 224 ---
 225 name:            no_hazard_lds_vscnt_0_branch_buf
 226 body:            |
 227   bb.0:
 228     successors: %bb.1
 229     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
 230     S_WAITCNT_VSCNT undef $sgpr_null, 0
 231     S_BRANCH %bb.1
 232
 233   bb.1:
 234     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN undef $vgpr0, undef $sgpr0_sgpr1_sgpr2_sgpr3, undef $sgpr4, 0, 0, 0, implicit $exec
 235     S_ENDPGM 0
 236 ...
 237
 238 # GCN-LABEL: name: hazard_lds_branch_global
 239 # GCN:        bb.1:
 240 # GFX10-NEXT: S_WAITCNT_VSCNT undef $sgpr_null, 0
 241 # GCN-NEXT:   GLOBAL_LOAD_DWORD
 242 ---
 243 name:            hazard_lds_branch_global
 244 body:            |
 245   bb.0:
 246     successors: %bb.1
 247     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
 248     S_BRANCH %bb.1
 249
 250   bb.1:
 251     $vgpr1 = GLOBAL_LOAD_DWORD undef $vgpr0_vgpr1, 0, 0, implicit $exec
 252     S_ENDPGM 0
 253 ...
 254
 255 # GCN-LABEL: name: hazard_lds_branch_scratch
 256 # GCN:        bb.1:
 257 # GFX10-NEXT: S_WAITCNT_VSCNT undef $sgpr_null, 0
 258 # GCN-NEXT:   SCRATCH_LOAD_DWORD
 259 ---
 260 name:            hazard_lds_branch_scratch
 261 body:            |
 262   bb.0:
 263     successors: %bb.1
 264     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
 265     S_BRANCH %bb.1
 266
 267   bb.1:
 268     $vgpr1 = SCRATCH_LOAD_DWORD undef $vgpr0, 0, 0, implicit $exec, implicit $flat_scr
 269     S_ENDPGM 0
 270 ...
 271
 272 # GCN-LABEL: name: no_hazard_lds_branch_flat
 273 # GCN:      bb.1:
 274 # GCN-NEXT: FLAT_LOAD_DWORD
 275 ---
 276 name:            no_hazard_lds_branch_flat
 277 body:            |
 278   bb.0:
 279     successors: %bb.1
 280     $vgpr1 = DS_READ_B32 undef $vgpr0, 0, 0, implicit $m0, implicit $exec
 281     S_BRANCH %bb.1
 282
 283   bb.1:
 284     $vgpr1 = FLAT_LOAD_DWORD undef $vgpr0_vgpr1, 0, 0, implicit $exec, implicit $flat_scr
 285     S_ENDPGM 0
 286 ...