; LLVM IR from UtkarshPathrabe/Competitive-Coding :: HackerRank Solutions/Algorithms/Graph Theory (Even Tree)

; 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_istream" = type { ptr, i64, %"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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z16CountAllChildrenPSt6vectorIiSaIiEEPii(ptr noundef, ptr noundef, i32 noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca i32, align 4
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #8
  store i32 0, ptr %6, align 4, !tbaa !5
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %15 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %14, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = zext i32 %16 to i64
  %18 = call ptr @llvm.stacksave.p0()
  store ptr %18, ptr %7, align 8
  %19 = alloca i32, i64 %17, align 16
  store i64 %17, ptr %8, align 8
  %20 = mul nuw i64 4, %17
  call void @llvm.memset.p0.i64(ptr align 16 %19, i8 0, i64 %20, i1 false)
  %21 = load i32, ptr %2, align 4, !tbaa !5
  %22 = zext i32 %21 to i64
  %23 = alloca %"class.std::vector", i64 %22, align 16
  store i64 %22, ptr %9, align 8
  %24 = icmp eq i64 %22, 0
  br i1 %24, label %31, label %25

25:                                               ; preds = %0
  %26 = getelementptr inbounds %"class.std::vector", ptr %23, i64 %22
  br label %27

27:                                               ; preds = %27, %25
  %28 = phi ptr [ %23, %25 ], [ %29, %27 ]
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %28) #8
  %29 = getelementptr inbounds %"class.std::vector", ptr %28, i64 1
  %30 = icmp eq ptr %29, %26
  br i1 %30, label %31, label %27

31:                                               ; preds = %27, %0
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #8
  store i32 0, ptr %10, align 4, !tbaa !5
  br label %32

32:                                               ; preds = %49, %31
  %33 = load i32, ptr %10, align 4, !tbaa !5
  %34 = load i32, ptr %3, align 4, !tbaa !5
  %35 = icmp slt i32 %33, %34
  br i1 %35, label %37, label %36

36:                                               ; preds = %32
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #8
  br label %56

37:                                               ; preds = %32
  %38 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %39 unwind label %52

39:                                               ; preds = %37
  %40 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %38, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %41 unwind label %52

41:                                               ; preds = %39
  %42 = load i32, ptr %5, align 4, !tbaa !5
  %43 = add nsw i32 %42, -1
  store i32 %43, ptr %5, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds %"class.std::vector", ptr %23, i64 %44
  %46 = load i32, ptr %4, align 4, !tbaa !5
  %47 = add nsw i32 %46, -1
  store i32 %47, ptr %4, align 4, !tbaa !5
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %45, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %48 unwind label %52

48:                                               ; preds = %41
  br label %49

49:                                               ; preds = %48
  %50 = load i32, ptr %10, align 4, !tbaa !5
  %51 = add nsw i32 %50, 1
  store i32 %51, ptr %10, align 4, !tbaa !5
  br label %32, !llvm.loop !9

52:                                               ; preds = %41, %39, %37
  %53 = landingpad { ptr, i32 }
          cleanup
  %54 = extractvalue { ptr, i32 } %53, 0
  store ptr %54, ptr %11, align 8
  %55 = extractvalue { ptr, i32 } %53, 1
  store i32 %55, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #8
  br label %97

56:                                               ; preds = %36
  %57 = invoke noundef i32 @_Z16CountAllChildrenPSt6vectorIiSaIiEEPii(ptr noundef %23, ptr noundef %19, i32 noundef 0)
          to label %58 unwind label %64

58:                                               ; preds = %56
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #8
  store i32 1, ptr %13, align 4, !tbaa !5
  br label %59

59:                                               ; preds = %79, %58
  %60 = load i32, ptr %13, align 4, !tbaa !5
  %61 = load i32, ptr %2, align 4, !tbaa !5
  %62 = icmp slt i32 %60, %61
  br i1 %62, label %68, label %63

63:                                               ; preds = %59
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #8
  br label %82

64:                                               ; preds = %85, %82, %56
  %65 = landingpad { ptr, i32 }
          cleanup
  %66 = extractvalue { ptr, i32 } %65, 0
  store ptr %66, ptr %11, align 8
  %67 = extractvalue { ptr, i32 } %65, 1
  store i32 %67, ptr %12, align 4
  br label %97

68:                                               ; preds = %59
  %69 = load i32, ptr %13, align 4, !tbaa !5
  %70 = sext i32 %69 to i64
  %71 = getelementptr inbounds i32, ptr %19, i64 %70
  %72 = load i32, ptr %71, align 4, !tbaa !5
  %73 = srem i32 %72, 2
  %74 = icmp eq i32 %73, 0
  br i1 %74, label %75, label %78

75:                                               ; preds = %68
  %76 = load i32, ptr %6, align 4, !tbaa !5
  %77 = add nsw i32 %76, 1
  store i32 %77, ptr %6, align 4, !tbaa !5
  br label %78

78:                                               ; preds = %75, %68
  br label %79

79:                                               ; preds = %78
  %80 = load i32, ptr %13, align 4, !tbaa !5
  %81 = add nsw i32 %80, 1
  store i32 %81, ptr %13, align 4, !tbaa !5
  br label %59, !llvm.loop !11

82:                                               ; preds = %63
  %83 = load i32, ptr %6, align 4, !tbaa !5
  %84 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %83)
          to label %85 unwind label %64

85:                                               ; preds = %82
  %86 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %84, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %87 unwind label %64

87:                                               ; preds = %85
  store i32 0, ptr %1, align 4
  %88 = getelementptr inbounds %"class.std::vector", ptr %23, i64 %22
  %89 = icmp eq ptr %23, %88
  br i1 %89, label %94, label %90

90:                                               ; preds = %90, %87
  %91 = phi ptr [ %88, %87 ], [ %92, %90 ]
  %92 = getelementptr inbounds %"class.std::vector", ptr %91, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %92) #8
  %93 = icmp eq ptr %92, %23
  br i1 %93, label %94, label %90

94:                                               ; preds = %90, %87
  %95 = load ptr, ptr %7, align 8
  call void @llvm.stackrestore.p0(ptr %95)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  %96 = load i32, ptr %1, align 4
  ret i32 %96

97:                                               ; preds = %64, %52
  %98 = getelementptr inbounds %"class.std::vector", ptr %23, i64 %22
  %99 = icmp eq ptr %23, %98
  br i1 %99, label %104, label %100

100:                                              ; preds = %100, %97
  %101 = phi ptr [ %98, %97 ], [ %102, %100 ]
  %102 = getelementptr inbounds %"class.std::vector", ptr %101, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %102) #8
  %103 = icmp eq ptr %102, %23
  br i1 %103, label %104, label %100

104:                                              ; preds = %100, %97
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  br label %105

105:                                              ; preds = %104
  %106 = load ptr, ptr %11, align 8
  %107 = load i32, ptr %12, align 4
  %108 = insertvalue { ptr, i32 } poison, ptr %106, 0
  %109 = insertvalue { ptr, i32 } %108, i32 %107, 1
  resume { ptr, i32 } %109
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #6 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #7

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #6 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress norecurse 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 = { "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 #4 = { nocallback nofree nosync nounwind willreturn }
attributes #5 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #6 = { 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 #7 = { 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 #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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


; 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_istream" = type { ptr, i64, %"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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z16CountAllChildrenPSt6vectorIiSaIiEEPii(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #9
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #9
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #9
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #9
  %5 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %6 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %7 = load i32, ptr %1, align 4, !tbaa !5
  %8 = zext i32 %7 to i64
  %9 = call ptr @llvm.stacksave.p0()
  %10 = alloca i32, i64 %8, align 16
  %11 = shl nuw nsw i64 %8, 2
  call void @llvm.memset.p0.i64(ptr nonnull align 16 %10, i8 0, i64 %11, i1 false)
  %12 = load i32, ptr %1, align 4, !tbaa !5
  %13 = zext i32 %12 to i64
  %14 = alloca %"class.std::vector", i64 %13, align 16
  %15 = icmp eq i32 %12, 0
  br i1 %15, label %.loopexit21, label %16

16:                                               ; preds = %0
  %17 = getelementptr inbounds %"class.std::vector", ptr %14, i64 %13
  br label %18

18:                                               ; preds = %18, %16
  %19 = phi ptr [ %14, %16 ], [ %20, %18 ]
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %19) #9
  %20 = getelementptr inbounds i8, ptr %19, i64 24
  %21 = icmp eq ptr %20, %17
  br i1 %21, label %.loopexit21, label %18

.loopexit21:                                      ; preds = %18, %0
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = icmp sgt i32 %22, 0
  br i1 %23, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %48, %.loopexit21
  %24 = invoke noundef i32 @_Z16CountAllChildrenPSt6vectorIiSaIiEEPii(ptr noundef nonnull %14, ptr noundef nonnull %10, i32 noundef 0)
          to label %.preheader20 unwind label %55

.preheader20:                                     ; preds = %._crit_edge
  %25 = load i32, ptr %1, align 4, !tbaa !5
  %26 = icmp sgt i32 %25, 1
  br i1 %26, label %.lr.ph25.preheader, label %._crit_edge26

.lr.ph25.preheader:                               ; preds = %.preheader20
  %wide.trip.count = zext nneg i32 %25 to i64
  %27 = add nsw i64 %wide.trip.count, -1
  %min.iters.check = icmp ult i32 %25, 9
  br i1 %min.iters.check, label %.lr.ph25.preheader30, label %vector.ph

.lr.ph25.preheader30:                             ; preds = %middle.block, %.lr.ph25.preheader
  %indvars.iv.ph = phi i64 [ 1, %.lr.ph25.preheader ], [ %ind.end, %middle.block ]
  %.01323.ph = phi i32 [ 0, %.lr.ph25.preheader ], [ %37, %middle.block ]
  br label %.lr.ph25

vector.ph:                                        ; preds = %.lr.ph25.preheader
  %n.vec = and i64 %27, -8
  %ind.end = or disjoint i64 %n.vec, 1
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %vec.phi = phi <4 x i32> [ zeroinitializer, %vector.ph ], [ %34, %vector.body ]
  %vec.phi28 = phi <4 x i32> [ zeroinitializer, %vector.ph ], [ %35, %vector.body ]
  %offset.idx = or disjoint i64 %index, 1
  %28 = getelementptr inbounds i32, ptr %10, i64 %offset.idx
  %29 = getelementptr inbounds i8, ptr %28, i64 16
  %wide.load = load <4 x i32>, ptr %28, align 4, !tbaa !5
  %wide.load29 = load <4 x i32>, ptr %29, align 4, !tbaa !5
  %30 = and <4 x i32> %wide.load, <i32 1, i32 1, i32 1, i32 1>
  %31 = and <4 x i32> %wide.load29, <i32 1, i32 1, i32 1, i32 1>
  %32 = xor <4 x i32> %30, <i32 1, i32 1, i32 1, i32 1>
  %33 = xor <4 x i32> %31, <i32 1, i32 1, i32 1, i32 1>
  %34 = add <4 x i32> %32, %vec.phi
  %35 = add <4 x i32> %33, %vec.phi28
  %index.next = add nuw i64 %index, 8
  %36 = icmp eq i64 %index.next, %n.vec
  br i1 %36, label %middle.block, label %vector.body, !llvm.loop !9

middle.block:                                     ; preds = %vector.body
  %bin.rdx = add <4 x i32> %35, %34
  %37 = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %bin.rdx)
  %cmp.n = icmp eq i64 %27, %n.vec
  br i1 %cmp.n, label %._crit_edge26, label %.lr.ph25.preheader30

.lr.ph:                                           ; preds = %.loopexit21, %48
  %.01222 = phi i32 [ %49, %48 ], [ 0, %.loopexit21 ]
  %38 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %39 unwind label %52

39:                                               ; preds = %.lr.ph
  %40 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %38, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %41 unwind label %52

41:                                               ; preds = %39
  %42 = load i32, ptr %4, align 4, !tbaa !5
  %43 = add nsw i32 %42, -1
  store i32 %43, ptr %4, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds %"class.std::vector", ptr %14, i64 %44
  %46 = load i32, ptr %3, align 4, !tbaa !5
  %47 = add nsw i32 %46, -1
  store i32 %47, ptr %3, align 4, !tbaa !5
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %45, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %48 unwind label %52

48:                                               ; preds = %41
  %49 = add nuw nsw i32 %.01222, 1
  %50 = load i32, ptr %2, align 4, !tbaa !5
  %51 = icmp slt i32 %49, %50
  br i1 %51, label %.lr.ph, label %._crit_edge, !llvm.loop !13

52:                                               ; preds = %41, %39, %.lr.ph
  %53 = landingpad { ptr, i32 }
          cleanup
  br label %68

._crit_edge26:                                    ; preds = %.lr.ph25, %middle.block, %.preheader20
  %.013.lcssa = phi i32 [ 0, %.preheader20 ], [ %37, %middle.block ], [ %spec.select, %.lr.ph25 ]
  %54 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.013.lcssa)
          to label %61 unwind label %55

55:                                               ; preds = %61, %._crit_edge26, %._crit_edge
  %56 = landingpad { ptr, i32 }
          cleanup
  br label %68

.lr.ph25:                                         ; preds = %.lr.ph25.preheader30, %.lr.ph25
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph25 ], [ %indvars.iv.ph, %.lr.ph25.preheader30 ]
  %.01323 = phi i32 [ %spec.select, %.lr.ph25 ], [ %.01323.ph, %.lr.ph25.preheader30 ]
  %57 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv
  %58 = load i32, ptr %57, align 4, !tbaa !5
  %59 = and i32 %58, 1
  %60 = xor i32 %59, 1
  %spec.select = add i32 %60, %.01323
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge26, label %.lr.ph25, !llvm.loop !14

61:                                               ; preds = %._crit_edge26
  %62 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %54, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %63 unwind label %55

63:                                               ; preds = %61
  br i1 %15, label %.loopexit19, label %.preheader18.preheader

.preheader18.preheader:                           ; preds = %63
  %64 = getelementptr inbounds %"class.std::vector", ptr %14, i64 %13
  br label %.preheader18

.preheader18:                                     ; preds = %.preheader18.preheader, %.preheader18
  %65 = phi ptr [ %66, %.preheader18 ], [ %64, %.preheader18.preheader ]
  %66 = getelementptr inbounds i8, ptr %65, i64 -24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %66) #9
  %67 = icmp eq ptr %66, %14
  br i1 %67, label %.loopexit19, label %.preheader18

.loopexit19:                                      ; preds = %.preheader18, %63
  call void @llvm.stackrestore.p0(ptr %9)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #9
  ret i32 0

68:                                               ; preds = %55, %52
  %.pn = phi { ptr, i32 } [ %53, %52 ], [ %56, %55 ]
  br i1 %15, label %.loopexit, label %.preheader.preheader

.preheader.preheader:                             ; preds = %68
  %69 = getelementptr inbounds %"class.std::vector", ptr %14, i64 %13
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %.preheader
  %70 = phi ptr [ %71, %.preheader ], [ %69, %.preheader.preheader ]
  %71 = getelementptr inbounds i8, ptr %70, i64 -24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %71) #9
  %72 = icmp eq ptr %71, %14
  br i1 %72, label %.loopexit, label %.preheader

.loopexit:                                        ; preds = %.preheader, %68
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #9
  resume { ptr, i32 } %.pn
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #6 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #7

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #6 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.vector.reduce.add.v4i32(<4 x i32>) #8

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress norecurse 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 = { "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 #4 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #5 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #6 = { 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 #7 = { 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 #8 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #9 = { 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 = distinct !{!9, !10, !11, !12}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!"llvm.loop.isvectorized", i32 1}
!12 = !{!"llvm.loop.unroll.runtime.disable"}
!13 = distinct !{!13, !10}
!14 = distinct !{!14, !10, !12, !11}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,ReassociatePass,SROAPass,SimplifyCFGPass