llvm/test/CodeGen/AMDGPU/do-not-fold-copy.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
# RUN: llc -mtriple=amdgcn -mcpu=gfx900 -run-pass=si-fold-operands -o - %s | FileCheck %s

---
liveins:
name:            do_not_fold_copy_with_implicit_exec
tracksRegLiveness: true
body:             |
  ; CHECK-LABEL: name: do_not_fold_copy_with_implicit_exec
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[S_MOV_B64_:%[0-9]+]]:sreg_64 = S_MOV_B64 0
  ; CHECK-NEXT:   [[S_MOV_B64_1:%[0-9]+]]:sreg_64 = S_MOV_B64 0
  ; CHECK-NEXT:   [[S_MOV_B32_:%[0-9]+]]:sreg_32 = S_MOV_B32 0, implicit $exec
  ; CHECK-NEXT:   S_BRANCH %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:sreg_64 = PHI [[S_MOV_B64_1]], %bb.0, %4, %bb.1
  ; CHECK-NEXT:   [[PHI1:%[0-9]+]]:sreg_32 = PHI [[S_MOV_B32_]], %bb.0, %6, %bb.1
  ; CHECK-NEXT:   [[S_ADD_I32_:%[0-9]+]]:sreg_32 = S_ADD_I32 [[PHI1]], 1, implicit-def dead $scc
  ; CHECK-NEXT:   [[SI_IF_BREAK:%[0-9]+]]:sreg_64 = SI_IF_BREAK [[S_MOV_B64_]], [[PHI]], implicit-def dead $scc
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:vgpr_32 = COPY [[S_ADD_I32_]], implicit $exec
  ; CHECK-NEXT:   SI_LOOP [[SI_IF_BREAK]], %bb.1, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
  ; CHECK-NEXT:   S_BRANCH %bb.2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   SI_END_CF [[SI_IF_BREAK]], implicit-def dead $exec, implicit-def dead $scc, implicit $exec
  ; CHECK-NEXT:   [[DEF:%[0-9]+]]:sreg_64_xexec = IMPLICIT_DEF
  ; CHECK-NEXT:   [[V_SET_INACTIVE_B32_:%[0-9]+]]:vgpr_32 = V_SET_INACTIVE_B32 0, [[COPY]], 0, 0, killed [[DEF]], implicit $exec
  ; CHECK-NEXT:   S_ENDPGM 0

  bb.0:
    %0:sreg_64 = S_MOV_B64 0
    %1:sreg_64 = S_MOV_B64 0
    %2:sreg_32 = S_MOV_B32 0, implicit $exec
    S_BRANCH %bb.1

  bb.1:
    %3:sreg_64 = PHI %1, %bb.0, %4, %bb.1
    %5:sreg_32 = PHI %2, %bb.0, %6, %bb.1
    %6:sreg_32 = S_ADD_I32 %5, 1, implicit-def dead $scc
    %4:sreg_64 = SI_IF_BREAK %0, %3, implicit-def dead $scc
    %7:vgpr_32 = COPY %6, implicit $exec
    SI_LOOP %4, %bb.1, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
    S_BRANCH %bb.2

  bb.2:
    SI_END_CF %4, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
    %9:vgpr_32 = COPY %7
    %10:sreg_64_xexec = IMPLICIT_DEF
    %11:vgpr_32 = V_SET_INACTIVE_B32 0, %9, 0, 0, killed %10, implicit $exec
    S_ENDPGM 0
...