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