; LLVM IR from DionysiosB/CodeForces :: 1500-1599 (1547B-AlphabeticalStrings)

; 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::__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] }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i32, align 4
  %10 = alloca i8, align 1
  %11 = alloca i64, align 8
  %12 = alloca i8, align 1
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  %13 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERl(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %2)
  br label %14

14:                                               ; preds = %117, %0
  %15 = load i64, ptr %2, align 8, !tbaa !5
  %16 = add nsw i64 %15, -1
  store i64 %16, ptr %2, align 8, !tbaa !5
  %17 = icmp ne i64 %15, 0
  br i1 %17, label %18, label %125

18:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 32, ptr %3) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %19 = invoke 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) %3)
          to label %20 unwind label %26

20:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  store i64 -1, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  store i64 -1, 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
  br label %21

21:                                               ; preds = %44, %20
  %22 = load i64, ptr %8, align 8, !tbaa !5
  %23 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %24 = icmp ult i64 %22, %23
  br i1 %24, label %30, label %25

25:                                               ; preds = %21
  store i32 4, ptr %9, align 4
  br label %47

26:                                               ; preds = %18
  %27 = landingpad { ptr, i32 }
          cleanup
  %28 = extractvalue { ptr, i32 } %27, 0
  store ptr %28, ptr %4, align 8
  %29 = extractvalue { ptr, i32 } %27, 1
  store i32 %29, ptr %5, align 4
  br label %124

30:                                               ; preds = %21
  %31 = load i64, ptr %8, align 8, !tbaa !5
  %32 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %31)
          to label %33 unwind label %39

33:                                               ; preds = %30
  %34 = load i8, ptr %32, align 1, !tbaa !9
  %35 = sext i8 %34 to i32
  %36 = icmp eq i32 %35, 97
  br i1 %36, label %37, label %43

37:                                               ; preds = %33
  %38 = load i64, ptr %8, align 8, !tbaa !5
  store i64 %38, ptr %7, align 8, !tbaa !5
  store i64 %38, ptr %6, align 8, !tbaa !5
  store i32 4, ptr %9, align 4
  br label %47

39:                                               ; preds = %30
  %40 = landingpad { ptr, i32 }
          cleanup
  %41 = extractvalue { ptr, i32 } %40, 0
  store ptr %41, ptr %4, align 8
  %42 = extractvalue { ptr, i32 } %40, 1
  store i32 %42, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %123

43:                                               ; preds = %33
  br label %44

44:                                               ; preds = %43
  %45 = load i64, ptr %8, align 8, !tbaa !5
  %46 = add nsw i64 %45, 1
  store i64 %46, ptr %8, align 8, !tbaa !5
  br label %21, !llvm.loop !10

47:                                               ; preds = %37, %25
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %48

48:                                               ; preds = %47
  call void @llvm.lifetime.start.p0(i64 1, ptr %10) #6
  %49 = load i64, ptr %6, align 8, !tbaa !5
  %50 = icmp sge i64 %49, 0
  %51 = zext i1 %50 to i8
  store i8 %51, ptr %10, align 1, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #6
  store i64 1, ptr %11, align 8, !tbaa !5
  br label %52

52:                                               ; preds = %106, %48
  %53 = load i8, ptr %10, align 1, !tbaa !12, !range !14, !noundef !15
  %54 = trunc i8 %53 to i1
  br i1 %54, label %55, label %59

55:                                               ; preds = %52
  %56 = load i64, ptr %11, align 8, !tbaa !5
  %57 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %58 = icmp ult i64 %56, %57
  br label %59

59:                                               ; preds = %55, %52
  %60 = phi i1 [ false, %52 ], [ %58, %55 ]
  br i1 %60, label %62, label %61

61:                                               ; preds = %59
  store i32 7, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  br label %109

62:                                               ; preds = %59
  call void @llvm.lifetime.start.p0(i64 1, ptr %12) #6
  %63 = load i64, ptr %11, align 8, !tbaa !5
  %64 = add nsw i64 97, %63
  %65 = trunc i64 %64 to i8
  store i8 %65, ptr %12, align 1, !tbaa !9
  %66 = load i64, ptr %6, align 8, !tbaa !5
  %67 = icmp sgt i64 %66, 0
  br i1 %67, label %68, label %85

68:                                               ; preds = %62
  %69 = load i64, ptr %6, align 8, !tbaa !5
  %70 = sub nsw i64 %69, 1
  %71 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %70)
          to label %72 unwind label %81

72:                                               ; preds = %68
  %73 = load i8, ptr %71, align 1, !tbaa !9
  %74 = sext i8 %73 to i32
  %75 = load i8, ptr %12, align 1, !tbaa !9
  %76 = sext i8 %75 to i32
  %77 = icmp eq i32 %74, %76
  br i1 %77, label %78, label %85

78:                                               ; preds = %72
  %79 = load i64, ptr %6, align 8, !tbaa !5
  %80 = add nsw i64 %79, -1
  store i64 %80, ptr %6, align 8, !tbaa !5
  br label %105

81:                                               ; preds = %90, %68
  %82 = landingpad { ptr, i32 }
          cleanup
  %83 = extractvalue { ptr, i32 } %82, 0
  store ptr %83, ptr %4, align 8
  %84 = extractvalue { ptr, i32 } %82, 1
  store i32 %84, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  br label %122

85:                                               ; preds = %72, %62
  %86 = load i64, ptr %7, align 8, !tbaa !5
  %87 = add nsw i64 %86, 1
  %88 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %89 = icmp ult i64 %87, %88
  br i1 %89, label %90, label %103

90:                                               ; preds = %85
  %91 = load i64, ptr %7, align 8, !tbaa !5
  %92 = add nsw i64 %91, 1
  %93 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %92)
          to label %94 unwind label %81

94:                                               ; preds = %90
  %95 = load i8, ptr %93, align 1, !tbaa !9
  %96 = sext i8 %95 to i32
  %97 = load i8, ptr %12, align 1, !tbaa !9
  %98 = sext i8 %97 to i32
  %99 = icmp eq i32 %96, %98
  br i1 %99, label %100, label %103

100:                                              ; preds = %94
  %101 = load i64, ptr %7, align 8, !tbaa !5
  %102 = add nsw i64 %101, 1
  store i64 %102, ptr %7, align 8, !tbaa !5
  br label %104

103:                                              ; preds = %94, %85
  store i8 0, ptr %10, align 1, !tbaa !12
  br label %104

104:                                              ; preds = %103, %100
  br label %105

105:                                              ; preds = %104, %78
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #6
  br label %106

106:                                              ; preds = %105
  %107 = load i64, ptr %11, align 8, !tbaa !5
  %108 = add nsw i64 %107, 1
  store i64 %108, ptr %11, align 8, !tbaa !5
  br label %52, !llvm.loop !16

109:                                              ; preds = %61
  %110 = load i8, ptr %10, align 1, !tbaa !12, !range !14, !noundef !15
  %111 = trunc i8 %110 to i1
  %112 = zext i1 %111 to i64
  %113 = select i1 %111, ptr @.str, ptr @.str.1
  %114 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef %113)
          to label %115 unwind label %118

115:                                              ; preds = %109
  %116 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %114, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %117 unwind label %118

117:                                              ; preds = %115
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #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 @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #6
  br label %14, !llvm.loop !17

118:                                              ; preds = %115, %109
  %119 = landingpad { ptr, i32 }
          cleanup
  %120 = extractvalue { ptr, i32 } %119, 0
  store ptr %120, ptr %4, align 8
  %121 = extractvalue { ptr, i32 } %119, 1
  store i32 %121, ptr %5, align 4
  br label %122

122:                                              ; preds = %118, %81
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #6
  br label %123

123:                                              ; preds = %122, %39
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  br label %124

124:                                              ; preds = %123, %26
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  br label %127

125:                                              ; preds = %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  %126 = load i32, ptr %1, align 4
  ret i32 %126

127:                                              ; preds = %124
  %128 = load ptr, ptr %4, align 8
  %129 = load i32, ptr %5, align 4
  %130 = insertvalue { ptr, i32 } poison, ptr %128, 0
  %131 = insertvalue { ptr, i32 } %130, i32 %129, 1
  resume { ptr, i32 } %131
}

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

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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 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)) #4

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; 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 @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #2 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)) #5

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 = { "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", !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 = !{!13, !13, i64 0}
!13 = !{!"bool", !7, i64 0}
!14 = !{i8 0, i8 2}
!15 = !{}
!16 = distinct !{!16, !11}
!17 = distinct !{!17, !11}


; 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::__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] }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  %3 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERl(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %1)
  %4 = load i64, ptr %1, align 8, !tbaa !5
  %5 = add nsw i64 %4, -1
  store i64 %5, ptr %1, align 8, !tbaa !5
  %.not43 = icmp eq i64 %4, 0
  br i1 %.not43, label %._crit_edge46, label %.lr.ph45

.lr.ph45:                                         ; preds = %0, %42
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %6 = invoke 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) %2)
          to label %.preheader unwind label %8

.preheader:                                       ; preds = %.lr.ph45
  %7 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %.not47 = icmp eq i64 %7, 0
  br i1 %.not47, label %.critedge, label %.lr.ph

8:                                                ; preds = %.lr.ph45
  %9 = landingpad { ptr, i32 }
          cleanup
  br label %47

.lr.ph:                                           ; preds = %.preheader, %13
  %.02231 = phi i64 [ %14, %13 ], [ 0, %.preheader ]
  %10 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %.02231)
  %11 = load i8, ptr %10, align 1, !tbaa !9
  %12 = icmp eq i8 %11, 97
  br i1 %12, label %._crit_edge, label %13

13:                                               ; preds = %.lr.ph
  %14 = add nuw nsw i64 %.02231, 1
  %15 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %16 = icmp ult i64 %14, %15
  br i1 %16, label %.lr.ph, label %.critedge, !llvm.loop !10

._crit_edge:                                      ; preds = %.lr.ph
  %17 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %18 = icmp ugt i64 %17, 1
  br i1 %18, label %.lr.ph59, label %.critedge

.critedge:                                        ; preds = %13, %.lr.ph39, %29, %33, %._crit_edge, %.preheader
  %19 = phi ptr [ @.str.1, %.preheader ], [ @.str, %._crit_edge ], [ @.str.1, %33 ], [ @.str.1, %29 ], [ @.str, %.lr.ph39 ], [ @.str.1, %13 ]
  %20 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull %19)
          to label %40 unwind label %45

.lr.ph59:                                         ; preds = %._crit_edge, %.lr.ph39
  %.1263458 = phi i64 [ %.227, %.lr.ph39 ], [ %.02231, %._crit_edge ]
  %.1243557 = phi i64 [ %.2, %.lr.ph39 ], [ %.02231, %._crit_edge ]
  %.0203756 = phi i64 [ %37, %.lr.ph39 ], [ 1, %._crit_edge ]
  %21 = trunc i64 %.0203756 to i8
  %22 = add i8 %21, 97
  %23 = icmp sgt i64 %.1263458, 0
  br i1 %23, label %24, label %29

24:                                               ; preds = %.lr.ph59
  %25 = add nsw i64 %.1263458, -1
  %26 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %25)
  %27 = load i8, ptr %26, align 1, !tbaa !9
  %28 = icmp eq i8 %27, %22
  br i1 %28, label %.lr.ph39, label %29

29:                                               ; preds = %24, %.lr.ph59
  %30 = add nsw i64 %.1243557, 1
  %31 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %32 = icmp ult i64 %30, %31
  br i1 %32, label %33, label %.critedge

33:                                               ; preds = %29
  %34 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %30)
  %35 = load i8, ptr %34, align 1, !tbaa !9
  %36 = icmp eq i8 %35, %22
  br i1 %36, label %.lr.ph39, label %.critedge

.lr.ph39:                                         ; preds = %24, %33
  %.227 = phi i64 [ %.1263458, %33 ], [ %25, %24 ]
  %.2 = phi i64 [ %30, %33 ], [ %.1243557, %24 ]
  %37 = add nuw nsw i64 %.0203756, 1
  %38 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %39 = icmp ult i64 %37, %38
  br i1 %39, label %.lr.ph59, label %.critedge, !llvm.loop !12

40:                                               ; preds = %.critedge
  %41 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %20, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %42 unwind label %45

42:                                               ; preds = %40
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #6
  %43 = load i64, ptr %1, align 8, !tbaa !5
  %44 = add nsw i64 %43, -1
  store i64 %44, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %43, 0
  br i1 %.not, label %._crit_edge46, label %.lr.ph45, !llvm.loop !13

45:                                               ; preds = %40, %.critedge
  %46 = landingpad { ptr, i32 }
          cleanup
  br label %47

47:                                               ; preds = %45, %8
  %.pn = phi { ptr, i32 } [ %46, %45 ], [ %9, %8 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn

._crit_edge46:                                    ; preds = %42, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  ret i32 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 uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERl(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 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 #4

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) 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: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; 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 @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #2 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)) #5

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 = { "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", !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}
!13 = distinct !{!13, !11}


; Effective O3 passes: AggressiveInstCombinePass,CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopInstSimplifyPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass