; LLVM IR from div-bargali/Data-Structures-and-Algorithms :: C++/Algorithms/Graph-Algorithms/Breadth First Search.ll (ZN5Graph3BFSEi)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::__cxx11::list" = type { %"class.std::__cxx11::_List_base" }
%"class.std::__cxx11::_List_base" = type { %"struct.std::__cxx11::_List_base<int, std::allocator<int>>::_List_impl" }
%"struct.std::__cxx11::_List_base<int, std::allocator<int>>::_List_impl" = type { %"struct.std::__detail::_List_node_header" }
%"struct.std::__detail::_List_node_header" = type { %"struct.std::__detail::_List_node_base", i64 }
%"struct.std::__detail::_List_node_base" = type { ptr, ptr }
%"struct.std::_List_iterator" = type { ptr }
%class.Graph = type { i32, ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx114listIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx114listIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN5Graph3BFSEi(ptr noundef nonnull align 8 dereferenceable(16) %0, i32 noundef %1) #2 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::__cxx11::list", align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca %"struct.std::_List_iterator", align 8
  %11 = alloca %"struct.std::_List_iterator", align 8
  %12 = alloca %"struct.std::_List_iterator", align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %13 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #7
  %14 = getelementptr inbounds %class.Graph, ptr %13, i32 0, i32 0
  %15 = load i32, ptr %14, align 8, !tbaa !11
  %16 = sext i32 %15 to i64
  %17 = call noalias noundef nonnull ptr @_Znam(i64 noundef %16) #8
  store ptr %17, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %18

18:                                               ; preds = %29, %2
  %19 = load i32, ptr %6, align 4, !tbaa !9
  %20 = getelementptr inbounds %class.Graph, ptr %13, i32 0, i32 0
  %21 = load i32, ptr %20, align 8, !tbaa !11
  %22 = icmp slt i32 %19, %21
  br i1 %22, label %24, label %23

23:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %32

24:                                               ; preds = %18
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = load i32, ptr %6, align 4, !tbaa !9
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds i8, ptr %25, i64 %27
  store i8 0, ptr %28, align 1, !tbaa !13
  br label %29

29:                                               ; preds = %24
  %30 = load i32, ptr %6, align 4, !tbaa !9
  %31 = add nsw i32 %30, 1
  store i32 %31, ptr %6, align 4, !tbaa !9
  br label %18, !llvm.loop !15

32:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #7
  call void @_ZNSt7__cxx114listIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  %33 = load ptr, ptr %5, align 8, !tbaa !5
  %34 = load i32, ptr %4, align 4, !tbaa !9
  %35 = sext i32 %34 to i64
  %36 = getelementptr inbounds i8, ptr %33, i64 %35
  store i8 1, ptr %36, align 1, !tbaa !13
  invoke void @_ZNSt7__cxx114listIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %7, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %37 unwind label %81

37:                                               ; preds = %32
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #7
  call void @_ZNSt14_List_iteratorIiEC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  br label %38

38:                                               ; preds = %92, %37
  %39 = call noundef zeroext i1 @_ZNKSt7__cxx114listIiSaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  %40 = xor i1 %39, true
  br i1 %40, label %41, label %93

41:                                               ; preds = %38
  %42 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt7__cxx114listIiSaIiEE5frontEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  %43 = load i32, ptr %42, align 4, !tbaa !9
  store i32 %43, ptr %4, align 4, !tbaa !9
  %44 = load i32, ptr %4, align 4, !tbaa !9
  %45 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %44)
          to label %46 unwind label %85

46:                                               ; preds = %41
  %47 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %45, ptr noundef @.str)
          to label %48 unwind label %85

48:                                               ; preds = %46
  call void @_ZNSt7__cxx114listIiSaIiEE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #7
  %49 = getelementptr inbounds %class.Graph, ptr %13, i32 0, i32 1
  %50 = load ptr, ptr %49, align 8, !tbaa !17
  %51 = load i32, ptr %4, align 4, !tbaa !9
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds %"class.std::__cxx11::list", ptr %50, i64 %52
  %54 = call ptr @_ZNSt7__cxx114listIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %53) #7
  %55 = getelementptr inbounds %"struct.std::_List_iterator", ptr %11, i32 0, i32 0
  store ptr %54, ptr %55, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %10, ptr align 8 %11, i64 8, i1 false), !tbaa.struct !18
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #7
  br label %56

56:                                               ; preds = %90, %48
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #7
  %57 = getelementptr inbounds %class.Graph, ptr %13, i32 0, i32 1
  %58 = load ptr, ptr %57, align 8, !tbaa !17
  %59 = load i32, ptr %4, align 4, !tbaa !9
  %60 = sext i32 %59 to i64
  %61 = getelementptr inbounds %"class.std::__cxx11::list", ptr %58, i64 %60
  %62 = call ptr @_ZNSt7__cxx114listIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %61) #7
  %63 = getelementptr inbounds %"struct.std::_List_iterator", ptr %12, i32 0, i32 0
  store ptr %62, ptr %63, align 8
  %64 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %12) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #7
  br i1 %64, label %65, label %92

65:                                               ; preds = %56
  %66 = load ptr, ptr %5, align 8, !tbaa !5
  %67 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt14_List_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  %68 = load i32, ptr %67, align 4, !tbaa !9
  %69 = sext i32 %68 to i64
  %70 = getelementptr inbounds i8, ptr %66, i64 %69
  %71 = load i8, ptr %70, align 1, !tbaa !13, !range !19, !noundef !20
  %72 = trunc i8 %71 to i1
  br i1 %72, label %89, label %73

73:                                               ; preds = %65
  %74 = load ptr, ptr %5, align 8, !tbaa !5
  %75 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt14_List_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  %76 = load i32, ptr %75, align 4, !tbaa !9
  %77 = sext i32 %76 to i64
  %78 = getelementptr inbounds i8, ptr %74, i64 %77
  store i8 1, ptr %78, align 1, !tbaa !13
  %79 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt14_List_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  invoke void @_ZNSt7__cxx114listIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %7, ptr noundef nonnull align 4 dereferenceable(4) %79)
          to label %80 unwind label %85

80:                                               ; preds = %73
  br label %89

81:                                               ; preds = %32
  %82 = landingpad { ptr, i32 }
          cleanup
  %83 = extractvalue { ptr, i32 } %82, 0
  store ptr %83, ptr %8, align 8
  %84 = extractvalue { ptr, i32 } %82, 1
  store i32 %84, ptr %9, align 4
  br label %94

85:                                               ; preds = %73, %46, %41
  %86 = landingpad { ptr, i32 }
          cleanup
  %87 = extractvalue { ptr, i32 } %86, 0
  store ptr %87, ptr %8, align 8
  %88 = extractvalue { ptr, i32 } %86, 1
  store i32 %88, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  br label %94

89:                                               ; preds = %80, %65
  br label %90

90:                                               ; preds = %89
  %91 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIiEppEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  br label %56, !llvm.loop !21

92:                                               ; preds = %56
  br label %38, !llvm.loop !22

93:                                               ; preds = %38
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  call void @_ZNSt7__cxx1110_List_baseIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #7
  ret void

94:                                               ; preds = %85, %81
  call void @_ZNSt7__cxx1110_List_baseIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #7
  br label %95

95:                                               ; preds = %94
  %96 = load ptr, ptr %8, align 8
  %97 = load i32, ptr %9, align 4
  %98 = insertvalue { ptr, i32 } poison, ptr %96, 0
  %99 = insertvalue { ptr, i32 } %98, i32 %97, 1
  resume { ptr, i32 } %99
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14_List_iteratorIiEC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt7__cxx114listIiSaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt7__cxx114listIiSaIiEE5frontEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #4

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx114listIiSaIiEE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt14_List_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt14_List_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIiEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx1110_List_baseIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

attributes #0 = { nobuiltin allocsize(0) "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #7 = { nounwind }
attributes #8 = { builtin allocsize(0) }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS5Graph", !10, i64 0, !6, i64 8}
!13 = !{!14, !14, i64 0}
!14 = !{!"bool", !7, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}
!17 = !{!12, !6, i64 8}
!18 = !{i64 0, i64 8, !5}
!19 = !{i8 0, i8 2}
!20 = !{}
!21 = distinct !{!21, !16}
!22 = distinct !{!22, !16}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::__cxx11::list" = type { %"class.std::__cxx11::_List_base" }
%"class.std::__cxx11::_List_base" = type { %"struct.std::__cxx11::_List_base<int, std::allocator<int>>::_List_impl" }
%"struct.std::__cxx11::_List_base<int, std::allocator<int>>::_List_impl" = type { %"struct.std::__detail::_List_node_header" }
%"struct.std::__detail::_List_node_header" = type { %"struct.std::__detail::_List_node_base", i64 }
%"struct.std::__detail::_List_node_base" = type { ptr, ptr }
%"struct.std::_List_iterator" = type { ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx114listIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx114listIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN5Graph3BFSEi(ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %0, i32 noundef %1) local_unnamed_addr #2 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::__cxx11::list", align 8
  %5 = alloca %"struct.std::_List_iterator", align 8
  %6 = alloca %"struct.std::_List_iterator", align 8
  store i32 %1, ptr %3, align 4, !tbaa !5
  %7 = load i32, ptr %0, align 8, !tbaa !9
  %8 = sext i32 %7 to i64
  %9 = tail call noalias noundef nonnull ptr @_Znam(i64 noundef %8) #7
  %10 = icmp sgt i32 %7, 0
  br i1 %10, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %2
  %11 = zext nneg i32 %7 to i64
  tail call void @llvm.memset.p0.i64(ptr nonnull align 1 %9, i8 0, i64 %11, i1 false), !tbaa !12
  br label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph.preheader, %2
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #8
  call void @_ZNSt7__cxx114listIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #8
  %12 = sext i32 %1 to i64
  %13 = getelementptr inbounds i8, ptr %9, i64 %12
  store i8 1, ptr %13, align 1, !tbaa !12
  invoke void @_ZNSt7__cxx114listIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %14 unwind label %48

14:                                               ; preds = %._crit_edge
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #8
  call void @_ZNSt14_List_iteratorIiEC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %5) #8
  %15 = call noundef zeroext i1 @_ZNKSt7__cxx114listIiSaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #8
  br i1 %15, label %._crit_edge18, label %.lr.ph17

.lr.ph17:                                         ; preds = %14
  %16 = getelementptr inbounds i8, ptr %0, i64 8
  br label %18

.loopexit:                                        ; preds = %51, %24
  %17 = call noundef zeroext i1 @_ZNKSt7__cxx114listIiSaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #8
  br i1 %17, label %._crit_edge18, label %18, !llvm.loop !14

18:                                               ; preds = %.lr.ph17, %.loopexit
  %19 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt7__cxx114listIiSaIiEE5frontEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #8
  %20 = load i32, ptr %19, align 4, !tbaa !5
  store i32 %20, ptr %3, align 4, !tbaa !5
  %21 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %20)
          to label %22 unwind label %.loopexit.split-lp

22:                                               ; preds = %18
  %23 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %21, ptr noundef nonnull @.str)
          to label %24 unwind label %.loopexit.split-lp

24:                                               ; preds = %22
  call void @_ZNSt7__cxx114listIiSaIiEE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #8
  %25 = load ptr, ptr %16, align 8, !tbaa !16
  %26 = load i32, ptr %3, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds %"class.std::__cxx11::list", ptr %25, i64 %27
  %29 = call ptr @_ZNSt7__cxx114listIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %28) #8
  store ptr %29, ptr %5, align 8, !tbaa !17
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #8
  %30 = load ptr, ptr %16, align 8, !tbaa !16
  %31 = load i32, ptr %3, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds %"class.std::__cxx11::list", ptr %30, i64 %32
  %34 = call ptr @_ZNSt7__cxx114listIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %33) #8
  store ptr %34, ptr %6, align 8
  %35 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #8
  br i1 %35, label %.lr.ph15, label %.loopexit

.lr.ph15:                                         ; preds = %24, %51
  %36 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt14_List_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #8
  %37 = load i32, ptr %36, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds i8, ptr %9, i64 %38
  %40 = load i8, ptr %39, align 1, !tbaa !12, !range !18, !noundef !19
  %41 = trunc nuw i8 %40 to i1
  br i1 %41, label %51, label %42

42:                                               ; preds = %.lr.ph15
  %43 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt14_List_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #8
  %44 = load i32, ptr %43, align 4, !tbaa !5
  %45 = sext i32 %44 to i64
  %46 = getelementptr inbounds i8, ptr %9, i64 %45
  store i8 1, ptr %46, align 1, !tbaa !12
  %47 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt14_List_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #8
  invoke void @_ZNSt7__cxx114listIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 4 dereferenceable(4) %47)
          to label %51 unwind label %.loopexit12

48:                                               ; preds = %._crit_edge
  %49 = landingpad { ptr, i32 }
          cleanup
  br label %59

.loopexit12:                                      ; preds = %42
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %50

.loopexit.split-lp:                               ; preds = %18, %22
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %50

50:                                               ; preds = %.loopexit.split-lp, %.loopexit12
  %lpad.phi = phi { ptr, i32 } [ %lpad.loopexit, %.loopexit12 ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #8
  br label %59

51:                                               ; preds = %.lr.ph15, %42
  %52 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIiEppEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #8
  %53 = load ptr, ptr %16, align 8, !tbaa !16
  %54 = load i32, ptr %3, align 4, !tbaa !5
  %55 = sext i32 %54 to i64
  %56 = getelementptr inbounds %"class.std::__cxx11::list", ptr %53, i64 %55
  %57 = call ptr @_ZNSt7__cxx114listIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %56) #8
  store ptr %57, ptr %6, align 8
  %58 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #8
  br i1 %58, label %.lr.ph15, label %.loopexit, !llvm.loop !20

._crit_edge18:                                    ; preds = %.loopexit, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #8
  call void @_ZNSt7__cxx1110_List_baseIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #8
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #8
  ret void

59:                                               ; preds = %50, %48
  %.pn = phi { ptr, i32 } [ %lpad.phi, %50 ], [ %49, %48 ]
  call void @_ZNSt7__cxx1110_List_baseIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #8
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #8
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14_List_iteratorIiEC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt7__cxx114listIiSaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt7__cxx114listIiSaIiEE5frontEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #4

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx114listIiSaIiEE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt14_List_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt14_List_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIiEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx1110_List_baseIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #6

attributes #0 = { nobuiltin allocsize(0) "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #7 = { builtin allocsize(0) }
attributes #8 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTS5Graph", !6, i64 0, !11, i64 8}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"bool", !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{!10, !11, i64 8}
!17 = !{!11, !11, i64 0}
!18 = !{i8 0, i8 2}
!19 = !{}
!20 = distinct !{!20, !15}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopIdiomRecognizePass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass