; LLVM IR from AdarshGaur/Competitive-Programming :: Codeforces/Codeforces Round #719 (Div. 3)/E. Arranging The Sheep.ll (Z5solvev)

; 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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"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.__gnu_cxx::__normal_iterator" = type { ptr }

@n = external dso_local global i64, align 8
@_Z1sB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() #0 {
  %1 = alloca i64, align 8
  %2 = alloca ptr, align 8
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %5 = alloca i8, align 1
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca i32, align 4
  %12 = alloca i64, align 8
  %13 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @n)
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11)
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #6
  store i64 0, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  store ptr @_Z1sB5cxx11, ptr %2, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  %15 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11) #6
  %16 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %3, i32 0, i32 0
  store ptr %15, ptr %16, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #6
  %17 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11) #6
  %18 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %4, i32 0, i32 0
  store ptr %17, ptr %18, align 8
  br label %19

19:                                               ; preds = %32, %0
  %20 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #6
  br i1 %20, label %22, label %21

21:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  br label %34

22:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #6
  %23 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #6
  %24 = load i8, ptr %23, align 1, !tbaa !11
  store i8 %24, ptr %5, align 1, !tbaa !11
  %25 = load i8, ptr %5, align 1, !tbaa !11
  %26 = sext i8 %25 to i32
  %27 = icmp eq i32 %26, 42
  br i1 %27, label %28, label %31

28:                                               ; preds = %22
  %29 = load i64, ptr %1, align 8, !tbaa !5
  %30 = add nsw i64 %29, 1
  store i64 %30, ptr %1, align 8, !tbaa !5
  br label %31

31:                                               ; preds = %28, %22
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #6
  br label %32

32:                                               ; preds = %31
  %33 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #6
  br label %19

34:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  store i64 0, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  store i64 0, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  store i64 0, ptr %9, align 8, !tbaa !5
  %35 = load i64, ptr %1, align 8, !tbaa !5
  %36 = sdiv i64 %35, 2
  store i64 %36, ptr %6, align 8, !tbaa !5
  %37 = load i64, ptr %6, align 8, !tbaa !5
  %38 = add nsw i64 %37, 1
  store i64 %38, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  store i64 0, ptr %10, align 8, !tbaa !5
  br label %39

39:                                               ; preds = %61, %34
  %40 = load i64, ptr %10, align 8, !tbaa !5
  %41 = load i64, ptr @n, align 8, !tbaa !5
  %42 = icmp slt i64 %40, %41
  br i1 %42, label %44, label %43

43:                                               ; preds = %39
  store i32 4, ptr %11, align 4
  br label %64

44:                                               ; preds = %39
  %45 = load i64, ptr %10, align 8, !tbaa !5
  %46 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %45)
  %47 = load i8, ptr %46, align 1, !tbaa !11
  %48 = sext i8 %47 to i32
  %49 = icmp eq i32 %48, 42
  br i1 %49, label %50, label %60

50:                                               ; preds = %44
  %51 = load i64, ptr %7, align 8, !tbaa !5
  %52 = add nsw i64 %51, 1
  store i64 %52, ptr %7, align 8, !tbaa !5
  %53 = load i64, ptr %7, align 8, !tbaa !5
  %54 = load i64, ptr %6, align 8, !tbaa !5
  %55 = icmp eq i64 %53, %54
  br i1 %55, label %56, label %59

56:                                               ; preds = %50
  %57 = load i64, ptr %10, align 8, !tbaa !5
  %58 = add nsw i64 %57, 1
  store i64 %58, ptr %8, align 8, !tbaa !5
  store i32 4, ptr %11, align 4
  br label %64

59:                                               ; preds = %50
  br label %60

60:                                               ; preds = %59, %44
  br label %61

61:                                               ; preds = %60
  %62 = load i64, ptr %10, align 8, !tbaa !5
  %63 = add nsw i64 %62, 1
  store i64 %63, ptr %10, align 8, !tbaa !5
  br label %39, !llvm.loop !12

64:                                               ; preds = %56, %43
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  br label %65

65:                                               ; preds = %64
  %66 = load i64, ptr %8, align 8, !tbaa !5
  %67 = load i64, ptr %6, align 8, !tbaa !5
  %68 = sub nsw i64 %66, %67
  store i64 %68, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #6
  store i64 0, ptr %12, align 8, !tbaa !5
  br label %69

69:                                               ; preds = %101, %65
  %70 = load i64, ptr %12, align 8, !tbaa !5
  %71 = load i64, ptr @n, align 8, !tbaa !5
  %72 = icmp slt i64 %70, %71
  br i1 %72, label %74, label %73

73:                                               ; preds = %69
  store i32 7, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  br label %104

74:                                               ; preds = %69
  %75 = load i64, ptr %12, align 8, !tbaa !5
  %76 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %75)
  %77 = load i8, ptr %76, align 1, !tbaa !11
  %78 = sext i8 %77 to i32
  %79 = icmp eq i32 %78, 42
  br i1 %79, label %80, label %100

80:                                               ; preds = %74
  %81 = load i64, ptr %7, align 8, !tbaa !5
  %82 = load i64, ptr %12, align 8, !tbaa !5
  %83 = sub nsw i64 %81, %82
  %84 = icmp slt i64 %83, 0
  br i1 %84, label %85, label %90

85:                                               ; preds = %80
  %86 = load i64, ptr %7, align 8, !tbaa !5
  %87 = load i64, ptr %12, align 8, !tbaa !5
  %88 = sub nsw i64 %86, %87
  %89 = sub nsw i64 0, %88
  br label %94

90:                                               ; preds = %80
  %91 = load i64, ptr %7, align 8, !tbaa !5
  %92 = load i64, ptr %12, align 8, !tbaa !5
  %93 = sub nsw i64 %91, %92
  br label %94

94:                                               ; preds = %90, %85
  %95 = phi i64 [ %89, %85 ], [ %93, %90 ]
  %96 = load i64, ptr %9, align 8, !tbaa !5
  %97 = add nsw i64 %96, %95
  store i64 %97, ptr %9, align 8, !tbaa !5
  %98 = load i64, ptr %7, align 8, !tbaa !5
  %99 = add nsw i64 %98, 1
  store i64 %99, ptr %7, align 8, !tbaa !5
  br label %100

100:                                              ; preds = %94, %74
  br label %101

101:                                              ; preds = %100
  %102 = load i64, ptr %12, align 8, !tbaa !5
  %103 = add nsw i64 %102, 1
  store i64 %103, ptr %12, align 8, !tbaa !5
  br label %69, !llvm.loop !14

104:                                              ; preds = %73
  %105 = load i64, ptr %9, align 8, !tbaa !5
  %106 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %105)
  %107 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %106, ptr noundef @.str)
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #6
  ret void
}

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32)) #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #3 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) #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #0 align 2

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 = { "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { inlinehint 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 #5 = { 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 #6 = { 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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}


; 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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"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.__gnu_cxx::__normal_iterator" = type { ptr }

@n = external dso_local global i64, align 8
@_Z1sB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() local_unnamed_addr #0 {
  %1 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %2 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %3 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @n)
  %4 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #7
  %5 = tail call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11) #7
  store ptr %5, ptr %1, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #7
  %6 = tail call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11) #7
  store ptr %6, ptr %2, align 8
  %7 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) #7
  br i1 %7, label %.lr.ph, label %._crit_edge

._crit_edge.loopexit:                             ; preds = %.lr.ph
  %8 = lshr i64 %spec.select, 1
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %0
  %.030.lcssa = phi i64 [ 0, %0 ], [ %8, %._crit_edge.loopexit ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #7
  %.neg = xor i64 %.030.lcssa, -1
  %9 = load i64, ptr @n, align 8, !tbaa !5
  %10 = icmp sgt i64 %9, 0
  br i1 %10, label %.lr.ph40, label %._crit_edge46

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.03036 = phi i64 [ %spec.select, %.lr.ph ], [ 0, %0 ]
  %11 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %1) #7
  %12 = load i8, ptr %11, align 1, !tbaa !9
  %13 = icmp eq i8 %12, 42
  %14 = zext i1 %13 to i64
  %spec.select = add nuw nsw i64 %.03036, %14
  %15 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %1) #7
  %16 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) #7
  br i1 %16, label %.lr.ph, label %._crit_edge.loopexit

.lr.ph40:                                         ; preds = %._crit_edge, %25
  %.02538 = phi i64 [ %26, %25 ], [ 0, %._crit_edge ]
  %.02837 = phi i64 [ %.129, %25 ], [ 0, %._crit_edge ]
  %17 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %.02538)
  %18 = load i8, ptr %17, align 1, !tbaa !9
  %19 = icmp eq i8 %18, 42
  br i1 %19, label %20, label %25

20:                                               ; preds = %.lr.ph40
  %21 = add nsw i64 %.02837, 1
  %22 = icmp eq i64 %.02837, %.030.lcssa
  br i1 %22, label %23, label %25

23:                                               ; preds = %20
  %24 = add nuw nsw i64 %.02538, 1
  %.pre = load i64, ptr @n, align 8, !tbaa !5
  br label %.loopexit

25:                                               ; preds = %.lr.ph40, %20
  %.129 = phi i64 [ %21, %20 ], [ %.02837, %.lr.ph40 ]
  %26 = add nuw nsw i64 %.02538, 1
  %27 = load i64, ptr @n, align 8, !tbaa !5
  %28 = icmp slt i64 %26, %27
  br i1 %28, label %.lr.ph40, label %.loopexit, !llvm.loop !10

.loopexit:                                        ; preds = %25, %23
  %29 = phi i64 [ %.pre, %23 ], [ %27, %25 ]
  %.027 = phi i64 [ %24, %23 ], [ 0, %25 ]
  %30 = icmp sgt i64 %29, 0
  br i1 %30, label %.lr.ph45.preheader, label %._crit_edge46

.lr.ph45.preheader:                               ; preds = %.loopexit
  %31 = add i64 %.027, %.neg
  br label %.lr.ph45

._crit_edge46:                                    ; preds = %42, %._crit_edge, %.loopexit
  %.026.lcssa = phi i64 [ 0, %.loopexit ], [ 0, %._crit_edge ], [ %.1, %42 ]
  %32 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %.026.lcssa)
  %33 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %32, ptr noundef nonnull @.str)
  ret void

.lr.ph45:                                         ; preds = %.lr.ph45.preheader, %42
  %.043 = phi i64 [ %43, %42 ], [ 0, %.lr.ph45.preheader ]
  %.02642 = phi i64 [ %.1, %42 ], [ 0, %.lr.ph45.preheader ]
  %.241 = phi i64 [ %.3, %42 ], [ %31, %.lr.ph45.preheader ]
  %34 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %.043)
  %35 = load i8, ptr %34, align 1, !tbaa !9
  %36 = icmp eq i8 %35, 42
  br i1 %36, label %37, label %42

37:                                               ; preds = %.lr.ph45
  %38 = sub nsw i64 %.241, %.043
  %39 = call i64 @llvm.abs.i64(i64 %38, i1 true)
  %40 = add nsw i64 %39, %.02642
  %41 = add nsw i64 %.241, 1
  br label %42

42:                                               ; preds = %.lr.ph45, %37
  %.3 = phi i64 [ %41, %37 ], [ %.241, %.lr.ph45 ]
  %.1 = phi i64 [ %40, %37 ], [ %.02642, %.lr.ph45 ]
  %43 = add nuw nsw i64 %.043, 1
  %44 = load i64, ptr @n, align 8, !tbaa !5
  %45 = icmp slt i64 %43, %44
  br i1 %45, label %.lr.ph45, label %._crit_edge46, !llvm.loop !12
}

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #3 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 #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.abs.i64(i64, i1 immarg) #6

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 = { "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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { inlinehint 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 #5 = { 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 #6 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #7 = { 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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass