# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn -mcpu=gfx900 -run-pass=greedy -o - -verify-machineinstrs %s | FileCheck -check-prefix=RA %s
# RUN: llc -mtriple=amdgcn -mcpu=gfx900 -run-pass=greedy,virtregrewriter,post-RA-sched -o - -verify-machineinstrs %s | FileCheck -check-prefix=VR %s

---
name:            splitkit_copy_bundle
tracksRegLiveness: true
machineFunctionInfo:
  scratchRSrcReg:  '$sgpr0_sgpr1_sgpr2_sgpr3'
  stackPtrOffsetReg: '$sgpr32'
body:             |
  ; RA-LABEL: name: splitkit_copy_bundle
  ; RA: bb.0:
  ; RA-NEXT:   successors: %bb.1(0x80000000)
  ; RA-NEXT: {{  $}}
  ; RA-NEXT:   [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
  ; RA-NEXT:   [[DEF1:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
  ; RA-NEXT:   undef [[S_MOV_B32_:%[0-9]+]].sub1:sgpr_1024 = S_MOV_B32 -1
  ; RA-NEXT:   [[S_MOV_B32_:%[0-9]+]].sub0:sgpr_1024 = S_MOV_B32 -1
  ; RA-NEXT:   SI_SPILL_S1024_SAVE [[S_MOV_B32_]], %stack.0, implicit $exec, implicit $sgpr32 :: (store (s1024) into %stack.0, align 4, addrspace 5)
  ; RA-NEXT:   undef [[S_MOV_B32_1:%[0-9]+]].sub0:sgpr_1024 = S_MOV_B32 0
  ; RA-NEXT:   SI_SPILL_S1024_SAVE [[S_MOV_B32_1]], %stack.1, implicit $exec, implicit $sgpr32 :: (store (s1024) into %stack.1, align 4, addrspace 5)
  ; RA-NEXT: {{  $}}
  ; RA-NEXT: bb.1:
  ; RA-NEXT:   successors: %bb.2(0x80000000)
  ; RA-NEXT: {{  $}}
  ; RA-NEXT:   [[SI_SPILL_S1024_RESTORE:%[0-9]+]]:sgpr_1024 = SI_SPILL_S1024_RESTORE %stack.0, implicit $exec, implicit $sgpr32 :: (load (s1024) from %stack.0, align 4, addrspace 5)
  ; RA-NEXT:   undef [[COPY:%[0-9]+]].sub0_sub1:sgpr_1024 = COPY [[SI_SPILL_S1024_RESTORE]].sub0_sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub2:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub3:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub4:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub5:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub6:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub7:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub8:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub9:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub10:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub11:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub12:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub13:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub14:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub15:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub16:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub17:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub18:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub19:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub20:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub21:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub22:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub23:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub24:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub25:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub26:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub27:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub28:sgpr_1024 = COPY [[COPY]].sub0
  ; RA-NEXT:   [[COPY:%[0-9]+]].sub29:sgpr_1024 = COPY [[COPY]].sub1
  ; RA-NEXT:   SI_SPILL_S1024_SAVE [[COPY]], %stack.0, implicit $exec, implicit $sgpr32 :: (store (s1024) into %stack.0, align 4, addrspace 5)
  ; RA-NEXT:   [[SI_SPILL_S1024_RESTORE1:%[0-9]+]]:sgpr_1024 = SI_SPILL_S1024_RESTORE %stack.1, implicit $exec, implicit $sgpr32 :: (load (s1024) from %stack.1, align 4, addrspace 5)
  ; RA-NEXT:   undef [[COPY1:%[0-9]+]].sub0:sgpr_1024 = COPY [[SI_SPILL_S1024_RESTORE1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub1:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub2:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub3:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub4:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub5:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub6:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub7:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub8:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub9:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub10:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub11:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub12:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub13:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub14:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub15:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub16:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub17:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub18:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub19:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub20:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub21:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub22:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub23:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub24:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub25:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub26:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub27:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub28:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub29:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub30:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   [[COPY1:%[0-9]+]].sub31:sgpr_1024 = COPY [[COPY1]].sub0
  ; RA-NEXT:   SI_SPILL_S1024_SAVE [[COPY1]], %stack.1, implicit $exec, implicit $sgpr32 :: (store (s1024) into %stack.1, align 4, addrspace 5)
  ; RA-NEXT: {{  $}}
  ; RA-NEXT: bb.2:
  ; RA-NEXT:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; RA-NEXT: {{  $}}
  ; RA-NEXT:   S_NOP 0, csr_amdgpu, implicit [[DEF]], implicit [[DEF1]]
  ; RA-NEXT:   S_CBRANCH_VCCNZ %bb.1, implicit undef $vcc
  ; RA-NEXT:   S_BRANCH %bb.2
  ;
  ; VR-LABEL: name: splitkit_copy_bundle
  ; VR: bb.0:
  ; VR-NEXT:   successors: %bb.1(0x80000000)
  ; VR-NEXT: {{  $}}
  ; VR-NEXT:   renamable $sgpr37 = S_MOV_B32 -1
  ; VR-NEXT:   renamable $sgpr36 = S_MOV_B32 -1
  ; VR-NEXT:   SI_SPILL_S1024_SAVE renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63_sgpr64_sgpr65_sgpr66_sgpr67, %stack.0, implicit $exec, implicit $sgpr32 :: (store (s1024) into %stack.0, align 4, addrspace 5)
  ; VR-NEXT:   renamable $sgpr36 = S_MOV_B32 0
  ; VR-NEXT:   renamable $sgpr30_sgpr31 = IMPLICIT_DEF
  ; VR-NEXT:   renamable $sgpr34_sgpr35 = IMPLICIT_DEF
  ; VR-NEXT:   SI_SPILL_S1024_SAVE killed renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63_sgpr64_sgpr65_sgpr66_sgpr67, %stack.1, implicit $exec, implicit $sgpr32 :: (store (s1024) into %stack.1, align 4, addrspace 5)
  ; VR-NEXT: {{  $}}
  ; VR-NEXT: bb.1:
  ; VR-NEXT:   successors: %bb.2(0x80000000)
  ; VR-NEXT:   liveins: $sgpr30_sgpr31, $sgpr34_sgpr35
  ; VR-NEXT: {{  $}}
  ; VR-NEXT:   renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63_sgpr64_sgpr65_sgpr66_sgpr67 = SI_SPILL_S1024_RESTORE %stack.0, implicit $exec, implicit $sgpr32 :: (load (s1024) from %stack.0, align 4, addrspace 5)
  ; VR-NEXT:   renamable $sgpr38 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr39 = COPY renamable $sgpr37
  ; VR-NEXT:   renamable $sgpr40 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr41 = COPY renamable $sgpr37
  ; VR-NEXT:   renamable $sgpr42 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr43 = COPY renamable $sgpr37
  ; VR-NEXT:   renamable $sgpr44 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr45 = COPY renamable $sgpr37
  ; VR-NEXT:   renamable $sgpr46 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr47 = COPY renamable $sgpr37
  ; VR-NEXT:   renamable $sgpr48 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr49 = COPY renamable $sgpr37
  ; VR-NEXT:   renamable $sgpr50 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr51 = COPY renamable $sgpr37
  ; VR-NEXT:   renamable $sgpr52 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr53 = COPY renamable $sgpr37
  ; VR-NEXT:   renamable $sgpr54 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr55 = COPY renamable $sgpr37
  ; VR-NEXT:   renamable $sgpr56 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr57 = COPY renamable $sgpr37
  ; VR-NEXT:   renamable $sgpr58 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr59 = COPY renamable $sgpr37
  ; VR-NEXT:   renamable $sgpr60 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr61 = COPY renamable $sgpr37
  ; VR-NEXT:   renamable $sgpr62 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr63 = COPY renamable $sgpr37
  ; VR-NEXT:   renamable $sgpr64 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr65 = COPY renamable $sgpr37
  ; VR-NEXT:   SI_SPILL_S1024_SAVE killed renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63_sgpr64_sgpr65_sgpr66_sgpr67, %stack.0, implicit $exec, implicit $sgpr32 :: (store (s1024) into %stack.0, align 4, addrspace 5)
  ; VR-NEXT:   renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63_sgpr64_sgpr65_sgpr66_sgpr67 = SI_SPILL_S1024_RESTORE %stack.1, implicit $exec, implicit $sgpr32 :: (load (s1024) from %stack.1, align 4, addrspace 5)
  ; VR-NEXT:   renamable $sgpr37 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr38 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr39 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr40 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr41 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr42 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr43 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr44 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr45 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr46 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr47 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr48 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr49 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr50 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr51 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr52 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr53 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr54 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr55 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr56 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr57 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr58 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr59 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr60 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr61 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr62 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr63 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr64 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr65 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr66 = COPY renamable $sgpr36
  ; VR-NEXT:   renamable $sgpr67 = COPY renamable $sgpr36
  ; VR-NEXT:   SI_SPILL_S1024_SAVE killed renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63_sgpr64_sgpr65_sgpr66_sgpr67, %stack.1, implicit $exec, implicit $sgpr32 :: (store (s1024) into %stack.1, align 4, addrspace 5)
  ; VR-NEXT: {{  $}}
  ; VR-NEXT: bb.2:
  ; VR-NEXT:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; VR-NEXT:   liveins: $sgpr30_sgpr31, $sgpr34_sgpr35
  ; VR-NEXT: {{  $}}
  ; VR-NEXT:   S_NOP 0, csr_amdgpu, implicit renamable $sgpr30_sgpr31, implicit renamable $sgpr34_sgpr35
  ; VR-NEXT:   S_CBRANCH_VCCNZ %bb.1, implicit undef $vcc
  ; VR-NEXT:   S_BRANCH %bb.2
  bb.0:
    %0:sreg_64 = IMPLICIT_DEF
    %1:sreg_64 = IMPLICIT_DEF
    undef %2.sub1:sgpr_1024 = S_MOV_B32 -1
    %2.sub0:sgpr_1024 = S_MOV_B32 -1
    undef %3.sub0:sgpr_1024 = S_MOV_B32 0

  bb.1:
    %2.sub2:sgpr_1024 = COPY %2.sub0
    %2.sub3:sgpr_1024 = COPY %2.sub1
    %2.sub4:sgpr_1024 = COPY %2.sub0
    %2.sub5:sgpr_1024 = COPY %2.sub1
    %2.sub6:sgpr_1024 = COPY %2.sub0
    %2.sub7:sgpr_1024 = COPY %2.sub1
    %2.sub8:sgpr_1024 = COPY %2.sub0
    %2.sub9:sgpr_1024 = COPY %2.sub1
    %2.sub10:sgpr_1024 = COPY %2.sub0
    %2.sub11:sgpr_1024 = COPY %2.sub1
    %2.sub12:sgpr_1024 = COPY %2.sub0
    %2.sub13:sgpr_1024 = COPY %2.sub1
    %2.sub14:sgpr_1024 = COPY %2.sub0
    %2.sub15:sgpr_1024 = COPY %2.sub1
    %2.sub16:sgpr_1024 = COPY %2.sub0
    %2.sub17:sgpr_1024 = COPY %2.sub1
    %2.sub18:sgpr_1024 = COPY %2.sub0
    %2.sub19:sgpr_1024 = COPY %2.sub1
    %2.sub20:sgpr_1024 = COPY %2.sub0
    %2.sub21:sgpr_1024 = COPY %2.sub1
    %2.sub22:sgpr_1024 = COPY %2.sub0
    %2.sub23:sgpr_1024 = COPY %2.sub1
    %2.sub24:sgpr_1024 = COPY %2.sub0
    %2.sub25:sgpr_1024 = COPY %2.sub1
    %2.sub26:sgpr_1024 = COPY %2.sub0
    %2.sub27:sgpr_1024 = COPY %2.sub1
    %2.sub28:sgpr_1024 = COPY %2.sub0
    %2.sub29:sgpr_1024 = COPY %2.sub1
    %3.sub1:sgpr_1024 = COPY %3.sub0
    %3.sub2:sgpr_1024 = COPY %3.sub0
    %3.sub3:sgpr_1024 = COPY %3.sub0
    %3.sub4:sgpr_1024 = COPY %3.sub0
    %3.sub5:sgpr_1024 = COPY %3.sub0
    %3.sub6:sgpr_1024 = COPY %3.sub0
    %3.sub7:sgpr_1024 = COPY %3.sub0
    %3.sub8:sgpr_1024 = COPY %3.sub0
    %3.sub9:sgpr_1024 = COPY %3.sub0
    %3.sub10:sgpr_1024 = COPY %3.sub0
    %3.sub11:sgpr_1024 = COPY %3.sub0
    %3.sub12:sgpr_1024 = COPY %3.sub0
    %3.sub13:sgpr_1024 = COPY %3.sub0
    %3.sub14:sgpr_1024 = COPY %3.sub0
    %3.sub15:sgpr_1024 = COPY %3.sub0
    %3.sub16:sgpr_1024 = COPY %3.sub0
    %3.sub17:sgpr_1024 = COPY %3.sub0
    %3.sub18:sgpr_1024 = COPY %3.sub0
    %3.sub19:sgpr_1024 = COPY %3.sub0
    %3.sub20:sgpr_1024 = COPY %3.sub0
    %3.sub21:sgpr_1024 = COPY %3.sub0
    %3.sub22:sgpr_1024 = COPY %3.sub0
    %3.sub23:sgpr_1024 = COPY %3.sub0
    %3.sub24:sgpr_1024 = COPY %3.sub0
    %3.sub25:sgpr_1024 = COPY %3.sub0
    %3.sub26:sgpr_1024 = COPY %3.sub0
    %3.sub27:sgpr_1024 = COPY %3.sub0
    %3.sub28:sgpr_1024 = COPY %3.sub0
    %3.sub29:sgpr_1024 = COPY %3.sub0
    %3.sub30:sgpr_1024 = COPY %3.sub0
    %3.sub31:sgpr_1024 = COPY %3.sub0

  bb.2:
    S_NOP 0, implicit %0, implicit %1, csr_amdgpu
    S_CBRANCH_VCCNZ %bb.1, implicit undef $vcc
    S_BRANCH %bb.2

...

---
name:            splitkit_copy_unbundle_reorder
tracksRegLiveness: true
machineFunctionInfo:
  scratchRSrcReg:  '$sgpr0_sgpr1_sgpr2_sgpr3'
  stackPtrOffsetReg: '$sgpr32'
body:             |
  bb.0:
    ; RA-LABEL: name: splitkit_copy_unbundle_reorder
    ; RA: [[DEF:%[0-9]+]]:sgpr_128 = IMPLICIT_DEF
    ; RA-NEXT: [[DEF1:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
    ; RA-NEXT: [[DEF2:%[0-9]+]]:sgpr_512 = IMPLICIT_DEF
    ; RA-NEXT: [[DEF2:%[0-9]+]].sub4:sgpr_512 = S_MOV_B32 -1
    ; RA-NEXT: [[DEF2:%[0-9]+]].sub5:sgpr_512 = S_MOV_B32 -1
    ; RA-NEXT: [[DEF2:%[0-9]+]].sub10:sgpr_512 = S_MOV_B32 -1
    ; RA-NEXT: [[DEF2:%[0-9]+]].sub11:sgpr_512 = S_MOV_B32 -1
    ; RA-NEXT: [[DEF2:%[0-9]+]].sub7:sgpr_512 = S_MOV_B32 -1
    ; RA-NEXT: [[DEF2:%[0-9]+]].sub8:sgpr_512 = S_MOV_B32 -1
    ; RA-NEXT: [[DEF2:%[0-9]+]].sub13:sgpr_512 = S_MOV_B32 -1
    ; RA-NEXT: [[DEF2:%[0-9]+]].sub14:sgpr_512 = S_MOV_B32 -1
    ; RA-NEXT: undef [[COPY:%[0-9]+]].sub4_sub5:sgpr_512 = COPY [[DEF2]].sub4_sub5 {
    ; RA-NEXT:   internal [[COPY]].sub10_sub11:sgpr_512 = COPY [[DEF2]].sub10_sub11
    ; RA-NEXT:   internal [[COPY]].sub7:sgpr_512 = COPY [[DEF2]].sub7
    ; RA-NEXT:   internal [[COPY]].sub8:sgpr_512 = COPY [[DEF2]].sub8
    ; RA-NEXT:   internal [[COPY]].sub13:sgpr_512 = COPY [[DEF2]].sub13
    ; RA-NEXT:   internal [[COPY]].sub14:sgpr_512 = COPY [[DEF2]].sub14
    ; RA-NEXT: }
    ; RA-NEXT: undef [[COPY1:%[0-9]+]].sub4_sub5:sgpr_512 = COPY [[COPY]].sub4_sub5 {
    ; RA-NEXT:   internal [[COPY1]].sub10_sub11:sgpr_512 = COPY [[COPY]].sub10_sub11
    ; RA-NEXT:   internal [[COPY1]].sub7:sgpr_512 = COPY [[COPY]].sub7
    ; RA-NEXT:   internal [[COPY1]].sub8:sgpr_512 = COPY [[COPY]].sub8
    ; RA-NEXT:   internal [[COPY1]].sub13:sgpr_512 = COPY [[COPY]].sub13
    ; RA-NEXT:   internal [[COPY1]].sub14:sgpr_512 = COPY [[COPY]].sub14
    ; RA-NEXT: }
    ; RA-NEXT: SI_SPILL_S512_SAVE [[COPY1]], %stack.0, implicit $exec, implicit $sgpr32 :: (store (s512) into %stack.0, align 4, addrspace 5)
    ; RA-NEXT: S_NOP 0, implicit-def $sgpr8, implicit-def $sgpr12, implicit-def $sgpr16, implicit-def $sgpr20, implicit-def $sgpr24, implicit-def $sgpr28, implicit-def $sgpr32, implicit-def $sgpr36, implicit-def $sgpr40, implicit-def $sgpr44, implicit-def $sgpr48, implicit-def $sgpr52, implicit-def $sgpr56, implicit-def $sgpr60, implicit-def $sgpr64, implicit-def $sgpr68, implicit-def $sgpr72, implicit-def $sgpr74, implicit-def $sgpr78, implicit-def $sgpr82, implicit-def $sgpr86, implicit-def $sgpr90, implicit-def $sgpr94, implicit-def $sgpr98
    ; RA-NEXT: [[SI_SPILL_S512_RESTORE:%[0-9]+]]:sgpr_512 = SI_SPILL_S512_RESTORE %stack.0, implicit $exec, implicit $sgpr32 :: (load (s512) from %stack.0, align 4, addrspace 5)
    ; RA-NEXT: undef [[COPY2:%[0-9]+]].sub4_sub5:sgpr_512 = COPY [[SI_SPILL_S512_RESTORE]].sub4_sub5 {
    ; RA-NEXT:   internal [[COPY2]].sub10_sub11:sgpr_512 = COPY [[SI_SPILL_S512_RESTORE]].sub10_sub11
    ; RA-NEXT:   internal [[COPY2]].sub7:sgpr_512 = COPY [[SI_SPILL_S512_RESTORE]].sub7
    ; RA-NEXT:   internal [[COPY2]].sub8:sgpr_512 = COPY [[SI_SPILL_S512_RESTORE]].sub8
    ; RA-NEXT:   internal [[COPY2]].sub13:sgpr_512 = COPY [[SI_SPILL_S512_RESTORE]].sub13
    ; RA-NEXT:   internal [[COPY2]].sub14:sgpr_512 = COPY [[SI_SPILL_S512_RESTORE]].sub14
    ; RA-NEXT: }
    ; RA-NEXT: undef [[COPY3:%[0-9]+]].sub4_sub5:sgpr_512 = COPY [[COPY2]].sub4_sub5 {
    ; RA-NEXT:   internal [[COPY3]].sub10_sub11:sgpr_512 = COPY [[COPY2]].sub10_sub11
    ; RA-NEXT:   internal [[COPY3]].sub7:sgpr_512 = COPY [[COPY2]].sub7
    ; RA-NEXT:   internal [[COPY3]].sub8:sgpr_512 = COPY [[COPY2]].sub8
    ; RA-NEXT:   internal [[COPY3]].sub13:sgpr_512 = COPY [[COPY2]].sub13
    ; RA-NEXT:   internal [[COPY3]].sub14:sgpr_512 = COPY [[COPY2]].sub14
    ; RA-NEXT: }
    ; RA-NEXT: [[S_BUFFER_LOAD_DWORD_SGPR:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR [[DEF]], [[COPY3]].sub4, 0 :: (dereferenceable invariant load (s32))
    ; RA-NEXT: [[S_BUFFER_LOAD_DWORD_SGPR1:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR [[DEF]], [[COPY3]].sub5, 0 :: (dereferenceable invariant load (s32))
    ; RA-NEXT: [[S_BUFFER_LOAD_DWORD_SGPR2:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR [[DEF]], [[COPY3]].sub10, 0 :: (dereferenceable invariant load (s32))
    ; RA-NEXT: [[S_BUFFER_LOAD_DWORD_SGPR3:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR [[DEF]], [[COPY3]].sub11, 0 :: (dereferenceable invariant load (s32))
    ; RA-NEXT: [[S_BUFFER_LOAD_DWORD_SGPR4:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR [[DEF]], [[COPY3]].sub7, 0 :: (dereferenceable invariant load (s32))
    ; RA-NEXT: [[S_BUFFER_LOAD_DWORD_SGPR5:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR [[DEF]], [[COPY3]].sub8, 0 :: (dereferenceable invariant load (s32))
    ; RA-NEXT: [[S_BUFFER_LOAD_DWORD_SGPR6:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR [[DEF]], [[COPY3]].sub13, 0 :: (dereferenceable invariant load (s32))
    ; RA-NEXT: [[S_BUFFER_LOAD_DWORD_SGPR7:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR [[DEF]], [[COPY3]].sub14, 0 :: (dereferenceable invariant load (s32))
    ; RA-NEXT: S_NOP 0, implicit [[DEF]], implicit [[DEF1]], implicit [[S_BUFFER_LOAD_DWORD_SGPR]], implicit [[S_BUFFER_LOAD_DWORD_SGPR1]], implicit [[S_BUFFER_LOAD_DWORD_SGPR2]], implicit [[S_BUFFER_LOAD_DWORD_SGPR3]], implicit [[S_BUFFER_LOAD_DWORD_SGPR4]], implicit [[S_BUFFER_LOAD_DWORD_SGPR5]], implicit [[S_BUFFER_LOAD_DWORD_SGPR6]], implicit [[S_BUFFER_LOAD_DWORD_SGPR7]]
    ;
    ; VR-LABEL: name: splitkit_copy_unbundle_reorder
    ; VR: renamable $sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27 = IMPLICIT_DEF
    ; VR-NEXT: renamable $sgpr16 = S_MOV_B32 -1
    ; VR-NEXT: renamable $sgpr17 = S_MOV_B32 -1
    ; VR-NEXT: renamable $sgpr22 = S_MOV_B32 -1
    ; VR-NEXT: renamable $sgpr23 = S_MOV_B32 -1
    ; VR-NEXT: renamable $sgpr19 = S_MOV_B32 -1
    ; VR-NEXT: renamable $sgpr20 = S_MOV_B32 -1
    ; VR-NEXT: renamable $sgpr25 = S_MOV_B32 -1
    ; VR-NEXT: renamable $sgpr26 = S_MOV_B32 -1
    ; VR-NEXT: SI_SPILL_S512_SAVE killed renamable $sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27, %stack.0, implicit $exec, implicit $sgpr32 :: (store (s512) into %stack.0, align 4, addrspace 5)
    ; VR-NEXT: S_NOP 0, implicit-def $sgpr8, implicit-def $sgpr12, implicit-def $sgpr16, implicit-def $sgpr20, implicit-def $sgpr24, implicit-def $sgpr28, implicit-def $sgpr32, implicit-def $sgpr36, implicit-def $sgpr40, implicit-def $sgpr44, implicit-def $sgpr48, implicit-def $sgpr52, implicit-def $sgpr56, implicit-def $sgpr60, implicit-def $sgpr64, implicit-def $sgpr68, implicit-def $sgpr72, implicit-def $sgpr74, implicit-def $sgpr78, implicit-def $sgpr82, implicit-def $sgpr86, implicit-def $sgpr90, implicit-def $sgpr94, implicit-def $sgpr98
    ; VR-NEXT: renamable $sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27 = SI_SPILL_S512_RESTORE %stack.0, implicit $exec, implicit $sgpr32 :: (load (s512) from %stack.0, align 4, addrspace 5)
    ; VR-NEXT: renamable $sgpr12_sgpr13 = COPY killed renamable $sgpr16_sgpr17
    ; VR-NEXT: renamable $sgpr15 = COPY killed renamable $sgpr19
    ; VR-NEXT: renamable $sgpr18_sgpr19 = COPY killed renamable $sgpr22_sgpr23
    ; VR-NEXT: renamable $sgpr16 = COPY killed renamable $sgpr20
    ; VR-NEXT: renamable $sgpr21 = COPY killed renamable $sgpr25
    ; VR-NEXT: renamable $sgpr22 = COPY killed renamable $sgpr26
    ; VR-NEXT: renamable $sgpr4_sgpr5_sgpr6_sgpr7 = IMPLICIT_DEF
    ; VR-NEXT: renamable $sgpr8 = S_BUFFER_LOAD_DWORD_SGPR renamable $sgpr4_sgpr5_sgpr6_sgpr7, killed renamable $sgpr12, 0 :: (dereferenceable invariant load (s32))
    ; VR-NEXT: renamable $sgpr9 = S_BUFFER_LOAD_DWORD_SGPR renamable $sgpr4_sgpr5_sgpr6_sgpr7, killed renamable $sgpr13, 0 :: (dereferenceable invariant load (s32))
    ; VR-NEXT: renamable $sgpr14 = S_BUFFER_LOAD_DWORD_SGPR renamable $sgpr4_sgpr5_sgpr6_sgpr7, killed renamable $sgpr15, 0 :: (dereferenceable invariant load (s32))
    ; VR-NEXT: renamable $sgpr10_sgpr11 = IMPLICIT_DEF
    ; VR-NEXT: renamable $sgpr17 = S_BUFFER_LOAD_DWORD_SGPR renamable $sgpr4_sgpr5_sgpr6_sgpr7, killed renamable $sgpr22, 0 :: (dereferenceable invariant load (s32))
    ; VR-NEXT: renamable $sgpr15 = S_BUFFER_LOAD_DWORD_SGPR renamable $sgpr4_sgpr5_sgpr6_sgpr7, killed renamable $sgpr16, 0 :: (dereferenceable invariant load (s32))
    ; VR-NEXT: renamable $sgpr12 = S_BUFFER_LOAD_DWORD_SGPR renamable $sgpr4_sgpr5_sgpr6_sgpr7, killed renamable $sgpr18, 0 :: (dereferenceable invariant load (s32))
    ; VR-NEXT: renamable $sgpr13 = S_BUFFER_LOAD_DWORD_SGPR renamable $sgpr4_sgpr5_sgpr6_sgpr7, killed renamable $sgpr19, 0 :: (dereferenceable invariant load (s32))
    ; VR-NEXT: renamable $sgpr16 = S_BUFFER_LOAD_DWORD_SGPR renamable $sgpr4_sgpr5_sgpr6_sgpr7, killed renamable $sgpr21, 0 :: (dereferenceable invariant load (s32))
    ; VR-NEXT: S_NOP 0, implicit killed renamable $sgpr4_sgpr5_sgpr6_sgpr7, implicit killed renamable $sgpr10_sgpr11, implicit killed renamable $sgpr8, implicit killed renamable $sgpr9, implicit killed renamable $sgpr12, implicit killed renamable $sgpr13, implicit killed renamable $sgpr14, implicit killed renamable $sgpr15, implicit killed renamable $sgpr16, implicit killed renamable $sgpr17
    %0:sgpr_128 = IMPLICIT_DEF
    %1:sreg_64 = IMPLICIT_DEF
    %2:sgpr_512 = IMPLICIT_DEF

    %2.sub4:sgpr_512 = S_MOV_B32 -1
    %2.sub5:sgpr_512 = S_MOV_B32 -1
    %2.sub10:sgpr_512 = S_MOV_B32 -1
    %2.sub11:sgpr_512 = S_MOV_B32 -1
    %2.sub7:sgpr_512 = S_MOV_B32 -1
    %2.sub8:sgpr_512 = S_MOV_B32 -1
    %2.sub13:sgpr_512 = S_MOV_B32 -1
    %2.sub14:sgpr_512 = S_MOV_B32 -1

    S_NOP 0, implicit-def $sgpr8, implicit-def $sgpr12, implicit-def $sgpr16, implicit-def $sgpr20, implicit-def $sgpr24, implicit-def $sgpr28, implicit-def $sgpr32, implicit-def $sgpr36, implicit-def $sgpr40, implicit-def $sgpr44, implicit-def $sgpr48, implicit-def $sgpr52, implicit-def $sgpr56, implicit-def $sgpr60, implicit-def $sgpr64, implicit-def $sgpr68, implicit-def $sgpr72, implicit-def $sgpr74, implicit-def $sgpr78, implicit-def $sgpr82, implicit-def $sgpr86, implicit-def $sgpr90, implicit-def $sgpr94, implicit-def $sgpr98

    %5:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR %0:sgpr_128, %2.sub4:sgpr_512, 0 :: (dereferenceable invariant load (s32))
    %6:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR %0:sgpr_128, %2.sub5:sgpr_512, 0 :: (dereferenceable invariant load (s32))
    %7:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR %0:sgpr_128, %2.sub10:sgpr_512, 0 :: (dereferenceable invariant load (s32))
    %8:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR %0:sgpr_128, %2.sub11:sgpr_512, 0 :: (dereferenceable invariant load (s32))
    %9:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR %0:sgpr_128, %2.sub7:sgpr_512, 0 :: (dereferenceable invariant load (s32))
    %10:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR %0:sgpr_128, %2.sub8:sgpr_512, 0 :: (dereferenceable invariant load (s32))
    %11:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR %0:sgpr_128, %2.sub13:sgpr_512, 0 :: (dereferenceable invariant load (s32))
    %12:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR %0:sgpr_128, %2.sub14:sgpr_512, 0 :: (dereferenceable invariant load (s32))

    S_NOP 0, implicit %0, implicit %1, implicit %5, implicit %6, implicit %7, implicit %8, implicit %9, implicit %10, implicit %11, implicit %12

...