test/CodeGen/AMDGPU/licm-valu.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -run-pass=early-machinelicm -verify-machineinstrs -o - %s | FileCheck -check-prefix=GCN %s
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -passes=early-machinelicm -o - %s | FileCheck -check-prefix=GCN %s

---
name: hoist_move
tracksRegLiveness: true
body:             |
  ; GCN-LABEL: name: hoist_move
  ; GCN: bb.0:
  ; GCN-NEXT:   successors: %bb.1(0x80000000)
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   [[V_MOV_B32_e32_:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 1, implicit $exec
  ; GCN-NEXT:   S_BRANCH %bb.1
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.1:
  ; GCN-NEXT:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   $exec = S_OR_B64 $exec, 1, implicit-def $scc
  ; GCN-NEXT:   S_CBRANCH_EXECNZ %bb.1, implicit $exec
  ; GCN-NEXT:   S_BRANCH %bb.2
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.2:
  ; GCN-NEXT:   S_ENDPGM 0
  bb.0:
    S_BRANCH %bb.1

  bb.1:
    %0:vgpr_32 = V_MOV_B32_e32 1, implicit $exec
    $exec = S_OR_B64 $exec, 1, implicit-def $scc
    S_CBRANCH_EXECNZ %bb.1, implicit $exec
    S_BRANCH %bb.2

  bb.2:
    S_ENDPGM 0
...
---
name: no_hoist_cmp
tracksRegLiveness: true
body:             |
  ; GCN-LABEL: name: no_hoist_cmp
  ; GCN: bb.0:
  ; GCN-NEXT:   successors: %bb.1(0x80000000)
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   S_BRANCH %bb.1
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.1:
  ; GCN-NEXT:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   [[V_CMP_EQ_U32_e64_:%[0-9]+]]:sreg_64 = V_CMP_EQ_U32_e64 1, 2, implicit $exec
  ; GCN-NEXT:   $exec = S_OR_B64 $exec, [[V_CMP_EQ_U32_e64_]], implicit-def $scc
  ; GCN-NEXT:   S_CBRANCH_EXECNZ %bb.1, implicit $exec
  ; GCN-NEXT:   S_BRANCH %bb.2
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.2:
  ; GCN-NEXT:   S_ENDPGM 0
  bb.0:
    S_BRANCH %bb.1

  bb.1:
    %0:sreg_64 = V_CMP_EQ_U32_e64 1, 2, implicit $exec
    $exec = S_OR_B64 $exec, %0:sreg_64, implicit-def $scc
    S_CBRANCH_EXECNZ %bb.1, implicit $exec
    S_BRANCH %bb.2

  bb.2:
    S_ENDPGM 0
...
---
name: allowable_hoist_cmp
tracksRegLiveness: true
body:             |
  ; GCN-LABEL: name: allowable_hoist_cmp
  ; GCN: bb.0:
  ; GCN-NEXT:   successors: %bb.1(0x80000000)
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   [[V_CMP_EQ_U32_e64_:%[0-9]+]]:sreg_64 = V_CMP_EQ_U32_e64 1, 2, implicit $exec
  ; GCN-NEXT:   S_BRANCH %bb.1
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.1:
  ; GCN-NEXT:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   $exec = S_AND_B64 $exec, [[V_CMP_EQ_U32_e64_]], implicit-def $scc
  ; GCN-NEXT:   S_CBRANCH_EXECNZ %bb.1, implicit $exec
  ; GCN-NEXT:   S_BRANCH %bb.2
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.2:
  ; GCN-NEXT:   S_ENDPGM 0
  bb.0:
    S_BRANCH %bb.1

  bb.1:
    %0:sreg_64 = V_CMP_EQ_U32_e64 1, 2, implicit $exec
    $exec = S_AND_B64 $exec, %0:sreg_64, implicit-def $scc
    S_CBRANCH_EXECNZ %bb.1, implicit $exec
    S_BRANCH %bb.2

  bb.2:
    S_ENDPGM 0
...
---
name: no_hoist_readfirstlane
tracksRegLiveness: true
body:             |
  ; GCN-LABEL: name: no_hoist_readfirstlane
  ; GCN: bb.0:
  ; GCN-NEXT:   successors: %bb.1(0x80000000)
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
  ; GCN-NEXT:   S_BRANCH %bb.1
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.1:
  ; GCN-NEXT:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   [[V_READFIRSTLANE_B32_:%[0-9]+]]:sgpr_32 = V_READFIRSTLANE_B32 [[DEF]], implicit $exec
  ; GCN-NEXT:   $exec = S_OR_B64 $exec, 1, implicit-def $scc
  ; GCN-NEXT:   S_CBRANCH_EXECNZ %bb.1, implicit $exec
  ; GCN-NEXT:   S_BRANCH %bb.2
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.2:
  ; GCN-NEXT:   S_ENDPGM 0
  bb.0:
    %0:vgpr_32 = IMPLICIT_DEF
    S_BRANCH %bb.1

  bb.1:
    %1:sgpr_32 = V_READFIRSTLANE_B32 %0:vgpr_32, implicit $exec
    $exec = S_OR_B64 $exec, 1, implicit-def $scc
    S_CBRANCH_EXECNZ %bb.1, implicit $exec
    S_BRANCH %bb.2

  bb.2:
    S_ENDPGM 0
...