llvm/test/CodeGen/AMDGPU/hazard-in-bundle.mir

   1 # RUN: llc -mtriple=amdgcn -mcpu=gfx902 -mattr=+xnack -verify-machineinstrs -run-pass  post-RA-hazard-rec %s -o - | FileCheck -check-prefixes=GCN,XNACK,GFX9 %s
   2 # RUN: llc -mtriple=amdgcn -mcpu=gfx900 -mattr=-xnack -verify-machineinstrs -run-pass  post-RA-hazard-rec %s -o - | FileCheck -check-prefixes=GCN,NOXNACK,GFX9 %s
   3 # RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -mattr=-wavefrontsize32,+wavefrontsize64,-xnack -verify-machineinstrs -run-pass  post-RA-hazard-rec %s -o - | FileCheck -check-prefixes=GCN,NOXNACK,GFX10 %s
   4
   5 # GCN-LABEL: name: break_smem_clause_max_look_ahead_in_bundle
   6 # GCN:          S_LOAD_DWORDX2_IMM
   7 # XNACK-NEXT:   S_NOP
   8 # NOXNACK-NOT:  S_NOP
   9 # GCN:          S_LOAD_DWORDX2
  10 # XNACK-NEXT:   S_NOP
  11 # NOXNACK-NOT:  S_NOP
  12 # GCN:          }
  13 ---
  14 name: break_smem_clause_max_look_ahead_in_bundle
  15 body: |
  16   bb.0:
  17     BUNDLE implicit-def $sgpr6_sgpr7 {
  18       $sgpr0_sgpr1 = S_LOAD_DWORDX2_IMM $sgpr10_sgpr11, 0, 0
  19       S_STORE_DWORD_IMM $sgpr8, $sgpr10_sgpr11, 0, 0
  20       S_STORE_DWORD_IMM $sgpr8, $sgpr10_sgpr11, 4, 0
  21       S_STORE_DWORD_IMM $sgpr8, $sgpr10_sgpr11, 8, 0
  22       S_STORE_DWORD_IMM $sgpr8, $sgpr10_sgpr11, 12, 0
  23       S_STORE_DWORD_IMM $sgpr8, $sgpr10_sgpr11, 16, 0
  24       $sgpr14_sgpr15 = S_LOAD_DWORDX2_IMM $sgpr12_sgpr13, 0, 0
  25       $sgpr16_sgpr17 = S_LOAD_DWORDX2_IMM $sgpr14_sgpr15, 0, 0
  26     }
  27     S_ENDPGM 0
  28 ...
  29
  30 # GFX10-LABEL: name: hazard_smem_war_in_bundle
  31 # GFX10:      S_LOAD_DWORD_IMM
  32 # GFX10-NEXT: $sgpr_null = S_MOV_B32 0
  33 # GFX10:      V_CMP_EQ_F32
  34 ---
  35 name: hazard_smem_war_in_bundle
  36 body: |
  37   bb.0:
  38     liveins: $sgpr0, $sgpr1, $vgpr0, $vgpr1
  39     BUNDLE implicit-def $sgpr0_sgpr1 {
  40       $sgpr2 = S_LOAD_DWORD_IMM $sgpr0_sgpr1, 0, 0
  41       $sgpr0_sgpr1 = V_CMP_EQ_F32_e64 0, $vgpr0, 0, $vgpr1, 1, implicit $mode, implicit $exec
  42     }
  43     S_ENDPGM 0
  44 ...
  45
  46 # GFX9-LABEL: name: hazard_ignore_dbg_label_in_bundle
  47 # GFX9:      DBG_LABEL 6
  48 # GFX9-NEXT: S_NOP 0
  49 # GFX9:      S_SENDMSG 3, implicit $exec, implicit $m0
  50 ---
  51 name: hazard_ignore_dbg_label_in_bundle
  52 body: |
  53   bb.0:
  54     BUNDLE {
  55       $m0 = S_MOV_B32 killed $sgpr12
  56       DBG_LABEL 0
  57       DBG_LABEL 1
  58       DBG_LABEL 2
  59       DBG_LABEL 3
  60       DBG_LABEL 4
  61       DBG_LABEL 5
  62       DBG_LABEL 6
  63       S_SENDMSG 3, implicit $exec, implicit $m0
  64     }
  65     S_ENDPGM 0
  66 ...
  67
  68 # GCN-LABEL: name: vmem_vcc_hazard_in_bundle
  69 # GCN:      S_LOAD_DWORDX2_IMM
  70 # GFX9-NEXT: S_NOP 3
  71 # GCN:      BUFFER_LOAD_DWORD_OFFEN
  72 ---
  73 name: vmem_vcc_hazard_in_bundle
  74 body: |
  75   bb.0:
  76     BUNDLE {
  77       $sgpr0_sgpr1_sgpr2_sgpr3 = IMPLICIT_DEF
  78       $vgpr0 = IMPLICIT_DEF
  79       $vgpr1 = V_ADDC_U32_e32 $vgpr0, $vgpr0, implicit-def $vcc, implicit $vcc, implicit $exec
  80       $sgpr0_sgpr1 = S_LOAD_DWORDX2_IMM $sgpr10_sgpr11, 0, 0
  81       $vgpr1 = BUFFER_LOAD_DWORD_OFFEN $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $vcc_lo, 0, 0, 0, implicit $exec
  82     }
  83     S_ENDPGM 0
  84 ...