llvm/test/CodeGen/AMDGPU/hazard-hidden-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=+wavefrontsize64,-xnack -verify-machineinstrs -run-pass  post-RA-hazard-rec %s -o - | FileCheck -check-prefixes=GCN,NOXNACK %s
   4
   5 # GCN-LABEL: name: break_smem_clause_simple_load_smrd8_ptr_hidden_bundle
   6 # GCN: bb.0:
   7 # GCN:          }
   8 # XNACK-NEXT:   S_NOP
   9 # NOXNACK-NOT:  S_NOP
  10 # GCN:          S_LOAD_DWORDX2_IMM
  11 ---
  12 name: break_smem_clause_simple_load_smrd8_ptr_hidden_bundle
  13 body: |
  14   bb.0:
  15     BUNDLE implicit-def $sgpr6_sgpr7 {
  16       $sgpr10_sgpr11 = S_LOAD_DWORDX2_IMM $sgpr12_sgpr13, 0, 0
  17     }
  18     $sgpr14_sgpr15 = S_LOAD_DWORDX2_IMM $sgpr10_sgpr11, 0, 0
  19     S_ENDPGM 0
  20 ...
  21
  22 # GFX9-LABEL: name: hazard_precedes_bundle
  23 # GFX9:      S_MOV_B32
  24 # GFX9-NEXT: S_NOP
  25 # GFX9:      BUNDLE
  26 # GFX9-NEXT: S_NOP
  27 ---
  28 name: hazard_precedes_bundle
  29 body:   |
  30   bb.0:
  31     $m0 = S_MOV_B32 $sgpr7
  32     S_SENDMSG 3, implicit $exec, implicit $m0
  33     $m0 = S_MOV_B32 $sgpr8
  34     BUNDLE implicit-def $vgpr0 {
  35       $vgpr0 = V_INTERP_P1_F32 killed $vgpr4, 0, 0, implicit $mode, implicit $m0, implicit $exec
  36     }
  37     S_ENDPGM 0
  38 ...
  39
  40 # GCN-LABEL: name: vmem_vcc_hazard_ignore_bundle_instr
  41 # GCN:      S_LOAD_DWORDX2_IMM
  42 # GCN-NEXT: }
  43 # GFX9-NEXT: S_NOP 3
  44 # GCN:      BUFFER_LOAD_DWORD_OFFEN
  45 ---
  46 name: vmem_vcc_hazard_ignore_bundle_instr
  47 body: |
  48   bb.0:
  49     $sgpr0_sgpr1_sgpr2_sgpr3 = IMPLICIT_DEF
  50     $vgpr0 = IMPLICIT_DEF
  51     BUNDLE implicit-def $vgpr1, implicit $vgpr0, implicit $vgpr0, implicit-def $vcc, implicit $vcc, implicit $exec {
  52       $vgpr1 = V_ADDC_U32_e32 $vgpr0, $vgpr0, implicit-def $vcc, implicit $vcc, implicit $exec
  53     }
  54     BUNDLE implicit-def $sgpr0_sgpr1, implicit $sgpr10_sgpr11 {
  55       $sgpr0_sgpr1 = S_LOAD_DWORDX2_IMM $sgpr10_sgpr11, 0, 0
  56     }
  57     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $vcc_lo, 0, 0, 0, implicit $exec
  58     S_ENDPGM 0
  59 ...
  60
  61 # GCN-LABEL: name: vmem_vcc_min_of_two_after_bundle
  62 # GCN:      bb.2:
  63 # GFX9-NEXT: S_NOP 4
  64 # GCN-NEXT: BUFFER_LOAD_DWORD_OFFEN
  65 ---
  66 name: vmem_vcc_min_of_two_after_bundle
  67 body: |
  68   bb.0:
  69     successors: %bb.2
  70
  71     BUNDLE implicit-def $vgpr1, implicit $vgpr0 {
  72       $sgpr0_sgpr1_sgpr2_sgpr3 = IMPLICIT_DEF
  73       $vgpr0 = IMPLICIT_DEF
  74       $vgpr1 = V_ADDC_U32_e32 $vgpr0, $vgpr0, implicit-def $vcc, implicit $vcc, implicit $exec
  75     }
  76     S_NOP 0
  77     S_BRANCH %bb.2
  78
  79   bb.1:
  80     successors: %bb.2
  81
  82     BUNDLE implicit-def $vgpr1, implicit $vgpr0 {
  83       $vgpr1 = V_ADDC_U32_e32 $vgpr0, $vgpr0, implicit-def $vcc, implicit $vcc, implicit $exec
  84     }
  85
  86   bb.2:
  87     $vgpr1 = BUFFER_LOAD_DWORD_OFFEN $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $vcc_lo, 0, 0, 0, implicit $exec
  88 ...