llvm/test/CodeGen/AMDGPU/vcmpx-permlane-hazard.mir

# RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs -run-pass si-insert-skips,post-RA-hazard-rec -o - %s | FileCheck -check-prefix=GCN %s

# GCN-LABEL: name: hazard_vcmpx_permlane16
# GCN:      V_CMPX_LE_F32_nosdst_e32
# GCN:      S_ADD_U32
# GCN-NEXT: $vgpr1 = V_MOV_B32_e32 killed $vgpr1, implicit $exec
# GCN-NEXT: V_PERMLANE16_B32
---
name:            hazard_vcmpx_permlane16
body:            |
  bb.0:
    successors: %bb.1
    $vgpr0 = V_MOV_B32_e32 0, implicit $exec
    SI_KILL_F32_COND_IMM_TERMINATOR $vgpr0, 0, 3, implicit-def $exec, implicit-def $vcc, implicit-def $scc, implicit $exec
    S_BRANCH %bb.1

  bb.1:
    $vgpr1 = IMPLICIT_DEF
    $vgpr2 = IMPLICIT_DEF
    $sgpr0 = IMPLICIT_DEF
    $sgpr1 = S_ADD_U32 $sgpr0, 0, implicit-def $scc
    $vgpr1 = V_PERMLANE16_B32 0, killed $vgpr1, 0, killed $sgpr1, 0, killed $sgpr0, $vgpr1, 0, implicit $exec
    S_ENDPGM 0
...

# GCN-LABEL: name: hazard_vcmpx_permlanex16
# GCN:      V_CMPX_LE_F32_nosdst_e32
# GCN:      $vgpr1 = V_MOV_B32_e32 killed $vgpr1, implicit $exec
# GCN-NEXT: V_PERMLANEX16_B32
---
name:            hazard_vcmpx_permlanex16
body:            |
  bb.0:
    successors: %bb.1
    $vgpr0 = V_MOV_B32_e32 0, implicit $exec
    SI_KILL_F32_COND_IMM_TERMINATOR $vgpr0, 0, 3, implicit-def $exec, implicit-def $vcc, implicit-def $scc, implicit $exec
    S_BRANCH %bb.1

  bb.1:
    $vgpr1 = IMPLICIT_DEF
    $vgpr2 = IMPLICIT_DEF
    $sgpr0 = IMPLICIT_DEF
    $sgpr1 = IMPLICIT_DEF
    $vgpr1 = V_PERMLANEX16_B32 0, killed $vgpr1, 0, killed $sgpr1, 0, killed $sgpr0, $vgpr1, 0, implicit $exec
    S_ENDPGM 0
...

# GCN-LABEL: name: hazard_vcmpx_permlane16_v_nop
# GCN:      V_CMPX_LE_F32_nosdst_e32
# GCN:      V_NOP
# GCN-NEXT: $vgpr1 = V_MOV_B32_e32 killed $vgpr1, implicit $exec
# GCN-NEXT: V_PERMLANE16_B32
---
name:            hazard_vcmpx_permlane16_v_nop
body:            |
  bb.0:
    successors: %bb.1
    $vgpr0 = V_MOV_B32_e32 0, implicit $exec
    SI_KILL_F32_COND_IMM_TERMINATOR $vgpr0, 0, 3, implicit-def $exec, implicit-def $vcc, implicit-def $scc, implicit $exec
    S_BRANCH %bb.1

  bb.1:
    $vgpr1 = IMPLICIT_DEF
    $vgpr2 = IMPLICIT_DEF
    $sgpr0 = IMPLICIT_DEF
    $sgpr1 = IMPLICIT_DEF
    V_NOP_e32 implicit $exec
    $vgpr1 = V_PERMLANE16_B32 0, killed $vgpr1, 0, killed $sgpr1, 0, killed $sgpr0, $vgpr1, 0, implicit $exec
    S_ENDPGM 0
...

# GCN-LABEL: name: hazard_vcmpx_permlane16_far
# GCN:      V_CMPX_LE_F32_nosdst_e32
# GCN:      $vgpr1 = V_MOV_B32_e32 killed $vgpr1, implicit $exec
# GCN-NEXT: V_PERMLANE16_B32
---
name:            hazard_vcmpx_permlane16_far
body:            |
  bb.0:
    successors: %bb.1
    $vgpr0 = V_MOV_B32_e32 0, implicit $exec
    SI_KILL_F32_COND_IMM_TERMINATOR $vgpr0, 0, 3, implicit-def $exec, implicit-def $vcc, implicit-def $scc, implicit $exec
    S_BRANCH %bb.1

  bb.1:
    $vgpr1 = IMPLICIT_DEF
    $vgpr2 = IMPLICIT_DEF
    $sgpr0 = IMPLICIT_DEF
    $sgpr1 = IMPLICIT_DEF
    V_NOP_e32 implicit $exec
    V_NOP_e32 implicit $exec
    V_NOP_e32 implicit $exec
    V_NOP_e32 implicit $exec
    V_NOP_e32 implicit $exec
    V_NOP_e32 implicit $exec
    V_NOP_e32 implicit $exec
    V_NOP_e32 implicit $exec
    V_NOP_e32 implicit $exec
    $vgpr1 = V_PERMLANE16_B32 0, killed $vgpr1, 0, killed $sgpr1, 0, killed $sgpr0, $vgpr1, 0, implicit $exec
    S_ENDPGM 0
...

# GCN-LABEL: name: hazard_vcmpx_permlane16_no_hazard
# GCN:      V_CMPX_LE_F32_nosdst_e32
# GCN:      V_ADD_F32
# GCN-NEXT: V_PERMLANE16_B32
---
name:            hazard_vcmpx_permlane16_no_hazard
body:            |
  bb.0:
    successors: %bb.1
    $vgpr0 = V_MOV_B32_e32 0, implicit $exec
    SI_KILL_F32_COND_IMM_TERMINATOR $vgpr0, 0, 3, implicit-def $exec, implicit-def $vcc, implicit-def $scc, implicit $exec
    S_BRANCH %bb.1

  bb.1:
    $vgpr1 = IMPLICIT_DEF
    $sgpr0 = IMPLICIT_DEF
    $sgpr1 = IMPLICIT_DEF
    $vgpr2 = V_ADD_F32_e32 $vgpr1, $vgpr1,  implicit $mode, implicit $exec
    $vgpr1 = V_PERMLANE16_B32 0, killed $vgpr1, 0, killed $sgpr1, 0, killed $sgpr0, $vgpr1, 0, implicit $exec
    S_ENDPGM 0
...

# GCN-LABEL: name: hazard_vcmpx_permlane16_undef_src
# GCN:      V_CMPX_LE_F32_nosdst_e32
# GCN:      S_ADD_U32
# GCN-NEXT: dead $vgpr1 = V_MOV_B32_e32 undef $vgpr1, implicit $exec
# GCN-NEXT: V_PERMLANE16_B32
---
name:            hazard_vcmpx_permlane16_undef_src
body:            |
  bb.0:
    successors: %bb.1
    $vgpr0 = V_MOV_B32_e32 0, implicit $exec
    SI_KILL_F32_COND_IMM_TERMINATOR $vgpr0, 0, 3, implicit-def $exec, implicit-def $vcc, implicit-def $scc, implicit $exec
    S_BRANCH %bb.1

  bb.1:
    $vgpr2 = IMPLICIT_DEF
    $sgpr0 = IMPLICIT_DEF
    $sgpr1 = S_ADD_U32 $sgpr0, 0, implicit-def $scc
    $vgpr1 = V_PERMLANE16_B32 0, undef $vgpr1, 0, killed $sgpr1, 0, killed $sgpr0, undef $vgpr1, 0, implicit $exec
    S_ENDPGM 0
...