llvm/test/CodeGen/AMDGPU/bug-undef-spilled-agpr.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -run-pass=si-lower-sgpr-spills,greedy,si-lower-wwm-copies,virtregrewriter,prologepilog -verify-machineinstrs -o - %s | FileCheck -check-prefix=GCN %s

---
name:            widget
tracksRegLiveness: true
frameInfo:
  adjustsStack:    true
stack:
  - { id: 0, type: spill-slot, size: 4, alignment: 4, stack-id: sgpr-spill }
  - { id: 1, type: spill-slot, size: 4, alignment: 4, stack-id: sgpr-spill }
machineFunctionInfo:
  hasSpilledSGPRs: true
  scratchRSrcReg:  '$sgpr0_sgpr1_sgpr2_sgpr3'
  stackPtrOffsetReg: '$sgpr32'
body:             |
  ; GCN-LABEL: name: widget
  ; GCN: bb.0:
  ; GCN-NEXT:   successors: %bb.1(0x80000000)
  ; GCN-NEXT:   liveins: $sgpr12, $sgpr13, $sgpr14, $sgpr15, $agpr0
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   $sgpr4_sgpr5 = S_XOR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
  ; GCN-NEXT:   $vgpr63 = V_ACCVGPR_READ_B32_e64 $agpr0, implicit $exec
  ; GCN-NEXT:   BUFFER_STORE_DWORD_OFFSET $vgpr63, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, implicit $exec :: (store (s32) into %stack.2, addrspace 5)
  ; GCN-NEXT:   $exec = S_MOV_B64 -1
  ; GCN-NEXT:   BUFFER_STORE_DWORD_OFFSET killed $vgpr62, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 4, 0, 0, implicit $exec :: (store (s32) into %stack.3, addrspace 5)
  ; GCN-NEXT:   $exec = S_MOV_B64 killed $sgpr4_sgpr5
  ; GCN-NEXT:   renamable $vgpr62 = IMPLICIT_DEF
  ; GCN-NEXT:   $vgpr62 = SI_SPILL_S32_TO_VGPR $sgpr15, 0, killed $vgpr62
  ; GCN-NEXT:   $noreg = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
  ; GCN-NEXT:   renamable $agpr0 = COPY killed renamable $vgpr62
  ; GCN-NEXT:   $exec = S_MOV_B64 killed $noreg
  ; GCN-NEXT:   renamable $vgpr62 = IMPLICIT_DEF
  ; GCN-NEXT:   dead renamable $vgpr62 = V_AND_B32_e32 1, killed $vgpr62, implicit $exec
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.1:
  ; GCN-NEXT:   successors: %bb.3(0x40000000), %bb.2(0x40000000)
  ; GCN-NEXT:   liveins: $agpr0
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   S_CBRANCH_EXECZ %bb.2, implicit $exec
  ; GCN-NEXT:   S_BRANCH %bb.3
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.2:
  ; GCN-NEXT:   successors: %bb.4(0x04000000), %bb.1(0x7c000000)
  ; GCN-NEXT:   liveins: $agpr0, $sgpr86, $sgpr87, $sgpr66_sgpr67, $sgpr68_sgpr69, $sgpr70_sgpr71, $sgpr80_sgpr81, $sgpr82_sgpr83, $sgpr84_sgpr85, $sgpr96_sgpr97, $sgpr98_sgpr99
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   S_CBRANCH_EXECNZ %bb.1, implicit $exec
  ; GCN-NEXT:   S_BRANCH %bb.4
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.3:
  ; GCN-NEXT:   successors: %bb.2(0x80000000)
  ; GCN-NEXT:   liveins: $agpr0
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT:   $noreg = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
  ; GCN-NEXT:   renamable $vgpr62 = COPY renamable $agpr0
  ; GCN-NEXT:   $exec = S_MOV_B64 killed $noreg
  ; GCN-NEXT:   $sgpr14 = SI_RESTORE_S32_FROM_VGPR killed $vgpr62, 1
  ; GCN-NEXT:   S_BRANCH %bb.2
  ; GCN-NEXT: {{  $}}
  ; GCN-NEXT: bb.4:
  ; GCN-NEXT:   $sgpr4_sgpr5 = S_XOR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
  ; GCN-NEXT:   $vgpr63 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, implicit $exec :: (load (s32) from %stack.2, addrspace 5)
  ; GCN-NEXT:   $agpr0 = V_ACCVGPR_WRITE_B32_e64 killed $vgpr63, implicit $exec
  ; GCN-NEXT:   $exec = S_MOV_B64 -1
  ; GCN-NEXT:   $vgpr62 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 4, 0, 0, implicit $exec :: (load (s32) from %stack.3, addrspace 5)
  ; GCN-NEXT:   $exec = S_MOV_B64 killed $sgpr4_sgpr5
  ; GCN-NEXT:   SI_RETURN
  bb.0:
    liveins: $sgpr12, $sgpr13, $sgpr14, $sgpr15

    %45:vgpr_32 = IMPLICIT_DEF
    SI_SPILL_S32_SAVE $sgpr15, %stack.0, implicit $exec, implicit $sgpr32 :: (store (s32) into %stack.0, addrspace 5)
    %16:vgpr_32 = V_AND_B32_e32 1, %45, implicit $exec

  bb.1:
    successors: %bb.3, %bb.2

    S_CBRANCH_EXECZ %bb.2, implicit $exec
    S_BRANCH %bb.3

  bb.2:
    successors: %bb.4(0x04000000), %bb.1(0x7c000000)
    liveins: $sgpr86, $sgpr87, $sgpr66_sgpr67, $sgpr68_sgpr69, $sgpr70_sgpr71, $sgpr80_sgpr81, $sgpr82_sgpr83, $sgpr84_sgpr85, $sgpr96_sgpr97, $sgpr98_sgpr99

    S_CBRANCH_EXECNZ %bb.1, implicit $exec
    S_BRANCH %bb.4

  bb.3:
    ADJCALLSTACKUP 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
    $sgpr14 = SI_SPILL_S32_RESTORE %stack.1, implicit $exec, implicit $sgpr32 :: (load (s32) from %stack.1, addrspace 5)
    ADJCALLSTACKDOWN 0, 28, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
    S_BRANCH %bb.2

  bb.4:
    SI_RETURN

...