; LLVM IR from imteekay/algorithms :: competitive-programming/interfatecs/1_2018 (g)

; 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 [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [9 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 %"class.std::__cxx11::basic_string", align 8
  %3 = alloca i8, align 1
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i8, align 1
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca ptr, align 8
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %15 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #6
  store i8 10, ptr %3, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #6
  store i32 0, ptr %4, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %7) #6
  store i8 10, ptr %7, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #6
  store i32 0, ptr %8, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #6
  store i32 0, ptr %11, align 4, !tbaa !8
  br label %16

16:                                               ; preds = %99, %0
  %17 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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 %18 unwind label %32

18:                                               ; preds = %16
  %19 = load ptr, ptr %17, align 8, !tbaa !10
  %20 = getelementptr i8, ptr %19, i64 -24
  %21 = load i64, ptr %20, align 8
  %22 = getelementptr inbounds i8, ptr %17, i64 %21
  %23 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %22)
          to label %24 unwind label %32

24:                                               ; preds = %18
  br i1 %23, label %25, label %102

25:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #6
  store i32 0, ptr %14, align 4, !tbaa !8
  br label %26

26:                                               ; preds = %96, %25
  %27 = load i32, ptr %14, align 4, !tbaa !8
  %28 = sext i32 %27 to i64
  %29 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %30 = icmp ult i64 %28, %29
  br i1 %30, label %36, label %31

31:                                               ; preds = %26
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #6
  br label %99

32:                                               ; preds = %129, %126, %124, %121, %119, %116, %113, %111, %108, %106, %18, %16
  %33 = landingpad { ptr, i32 }
          cleanup
  %34 = extractvalue { ptr, i32 } %33, 0
  store ptr %34, ptr %12, align 8
  %35 = extractvalue { ptr, i32 } %33, 1
  store i32 %35, ptr %13, align 4
  br label %134

36:                                               ; preds = %26
  %37 = load i8, ptr %3, align 1, !tbaa !5
  %38 = sext i8 %37 to i32
  %39 = icmp eq i32 %38, 10
  br i1 %39, label %40, label %50

40:                                               ; preds = %36
  %41 = load i32, ptr %14, align 4, !tbaa !8
  %42 = sext i32 %41 to i64
  %43 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %42)
          to label %44 unwind label %46

44:                                               ; preds = %40
  %45 = load i8, ptr %43, align 1, !tbaa !5
  store i8 %45, ptr %3, align 1, !tbaa !5
  br label %71

46:                                               ; preds = %71, %64, %50, %40
  %47 = landingpad { ptr, i32 }
          cleanup
  %48 = extractvalue { ptr, i32 } %47, 0
  store ptr %48, ptr %12, align 8
  %49 = extractvalue { ptr, i32 } %47, 1
  store i32 %49, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #6
  br label %134

50:                                               ; preds = %36
  %51 = load i8, ptr %3, align 1, !tbaa !5
  %52 = sext i8 %51 to i32
  %53 = load i32, ptr %14, align 4, !tbaa !8
  %54 = sext i32 %53 to i64
  %55 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %54)
          to label %56 unwind label %46

56:                                               ; preds = %50
  %57 = load i8, ptr %55, align 1, !tbaa !5
  %58 = sext i8 %57 to i32
  %59 = icmp ne i32 %52, %58
  br i1 %59, label %60, label %70

60:                                               ; preds = %56
  %61 = load i8, ptr %7, align 1, !tbaa !5
  %62 = sext i8 %61 to i32
  %63 = icmp eq i32 %62, 10
  br i1 %63, label %64, label %70

64:                                               ; preds = %60
  %65 = load i32, ptr %14, align 4, !tbaa !8
  %66 = sext i32 %65 to i64
  %67 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %66)
          to label %68 unwind label %46

68:                                               ; preds = %64
  %69 = load i8, ptr %67, align 1, !tbaa !5
  store i8 %69, ptr %7, align 1, !tbaa !5
  br label %70

70:                                               ; preds = %68, %60, %56
  br label %71

71:                                               ; preds = %70, %44
  %72 = load i32, ptr %14, align 4, !tbaa !8
  %73 = sext i32 %72 to i64
  %74 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %73)
          to label %75 unwind label %46

75:                                               ; preds = %71
  %76 = load i8, ptr %74, align 1, !tbaa !5
  %77 = sext i8 %76 to i32
  %78 = load i8, ptr %3, align 1, !tbaa !5
  %79 = sext i8 %78 to i32
  %80 = icmp eq i32 %77, %79
  br i1 %80, label %81, label %88

81:                                               ; preds = %75
  %82 = load i32, ptr %4, align 4, !tbaa !8
  %83 = add nsw i32 %82, 1
  store i32 %83, ptr %4, align 4, !tbaa !8
  %84 = load i32, ptr %11, align 4, !tbaa !8
  %85 = add nsw i32 %84, 1
  store i32 %85, ptr %5, align 4, !tbaa !8
  %86 = load i32, ptr %14, align 4, !tbaa !8
  %87 = add nsw i32 %86, 1
  store i32 %87, ptr %6, align 4, !tbaa !8
  br label %95

88:                                               ; preds = %75
  %89 = load i32, ptr %8, align 4, !tbaa !8
  %90 = add nsw i32 %89, 1
  store i32 %90, ptr %8, align 4, !tbaa !8
  %91 = load i32, ptr %11, align 4, !tbaa !8
  %92 = add nsw i32 %91, 1
  store i32 %92, ptr %9, align 4, !tbaa !8
  %93 = load i32, ptr %14, align 4, !tbaa !8
  %94 = add nsw i32 %93, 1
  store i32 %94, ptr %10, align 4, !tbaa !8
  br label %95

95:                                               ; preds = %88, %81
  br label %96

96:                                               ; preds = %95
  %97 = load i32, ptr %14, align 4, !tbaa !8
  %98 = add nsw i32 %97, 1
  store i32 %98, ptr %14, align 4, !tbaa !8
  br label %26, !llvm.loop !12

99:                                               ; preds = %31
  %100 = load i32, ptr %11, align 4, !tbaa !8
  %101 = add nsw i32 %100, 1
  store i32 %101, ptr %11, align 4, !tbaa !8
  br label %16, !llvm.loop !14

102:                                              ; preds = %24
  %103 = load i32, ptr %4, align 4, !tbaa !8
  %104 = load i32, ptr %8, align 4, !tbaa !8
  %105 = icmp slt i32 %103, %104
  br i1 %105, label %106, label %119

106:                                              ; preds = %102
  %107 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
          to label %108 unwind label %32

108:                                              ; preds = %106
  %109 = load i32, ptr %5, align 4, !tbaa !8
  %110 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %107, i32 noundef %109)
          to label %111 unwind label %32

111:                                              ; preds = %108
  %112 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %110, ptr noundef @.str.1)
          to label %113 unwind label %32

113:                                              ; preds = %111
  %114 = load i32, ptr %6, align 4, !tbaa !8
  %115 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %112, i32 noundef %114)
          to label %116 unwind label %32

116:                                              ; preds = %113
  %117 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %115, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %118 unwind label %32

118:                                              ; preds = %116
  br label %132

119:                                              ; preds = %102
  %120 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
          to label %121 unwind label %32

121:                                              ; preds = %119
  %122 = load i32, ptr %9, align 4, !tbaa !8
  %123 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %120, i32 noundef %122)
          to label %124 unwind label %32

124:                                              ; preds = %121
  %125 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %123, ptr noundef @.str.1)
          to label %126 unwind label %32

126:                                              ; preds = %124
  %127 = load i32, ptr %10, align 4, !tbaa !8
  %128 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %125, i32 noundef %127)
          to label %129 unwind label %32

129:                                              ; preds = %126
  %130 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %128, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %131 unwind label %32

131:                                              ; preds = %129
  br label %132

132:                                              ; preds = %131, %118
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #6
  %133 = load i32, ptr %1, align 4
  ret i32 %133

134:                                              ; preds = %46, %32
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #6
  br label %135

135:                                              ; preds = %134
  %136 = load ptr, ptr %12, align 8
  %137 = load i32, ptr %13, align 4
  %138 = insertvalue { ptr, i32 } poison, ptr %136, 0
  %139 = insertvalue { ptr, i32 } %138, i32 %137, 1
  resume { ptr, i32 } %139
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #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 void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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 uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(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) #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) #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #5 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)) #4

; 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 = { "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 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 = { 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !6, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"vtable pointer", !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::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 [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [9 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 %"class.std::__cxx11::basic_string", align 8
  %2 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  br label %3

3:                                                ; preds = %._crit_edge, %0
  %.047 = phi i32 [ 0, %0 ], [ %.148.lcssa, %._crit_edge ]
  %.044 = phi i32 [ undef, %0 ], [ %.145.lcssa, %._crit_edge ]
  %.041 = phi i32 [ undef, %0 ], [ %.142.lcssa, %._crit_edge ]
  %.038 = phi i8 [ 10, %0 ], [ %.139.lcssa, %._crit_edge ]
  %.035 = phi i32 [ 0, %0 ], [ %.136.lcssa, %._crit_edge ]
  %.032 = phi i32 [ undef, %0 ], [ %.133.lcssa, %._crit_edge ]
  %.029 = phi i32 [ undef, %0 ], [ %.130.lcssa, %._crit_edge ]
  %.028 = phi i32 [ 0, %0 ], [ %.pre, %._crit_edge ]
  %.027 = phi i8 [ 10, %0 ], [ %.1.lcssa, %._crit_edge ]
  %4 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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) %1)
          to label %5 unwind label %.loopexit

5:                                                ; preds = %3
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = getelementptr i8, ptr %6, i64 -24
  %8 = load i64, ptr %7, align 8
  %9 = getelementptr inbounds i8, ptr %4, i64 %8
  %10 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %9)
          to label %11 unwind label %.loopexit

11:                                               ; preds = %5
  br i1 %10, label %.preheader, label %36

.preheader:                                       ; preds = %11
  %12 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %.not = icmp eq i64 %12, 0
  %.pre = add nuw nsw i32 %.028, 1
  br i1 %.not, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %33, %.preheader
  %.148.lcssa = phi i32 [ %.047, %.preheader ], [ %.249, %33 ]
  %.145.lcssa = phi i32 [ %.044, %.preheader ], [ %.246, %33 ]
  %.142.lcssa = phi i32 [ %.041, %.preheader ], [ %.243, %33 ]
  %.139.lcssa = phi i8 [ %.038, %.preheader ], [ %.240, %33 ]
  %.136.lcssa = phi i32 [ %.035, %.preheader ], [ %.237, %33 ]
  %.133.lcssa = phi i32 [ %.032, %.preheader ], [ %.234, %33 ]
  %.130.lcssa = phi i32 [ %.029, %.preheader ], [ %.231, %33 ]
  %.1.lcssa = phi i8 [ %.027, %.preheader ], [ %.2, %33 ]
  br label %3, !llvm.loop !8

.loopexit:                                        ; preds = %3, %5
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %13

.loopexit.split-lp:                               ; preds = %.invoke86, %.invoke, %38, %40, %42, %48, %50, %52
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %13

13:                                               ; preds = %.loopexit.split-lp, %.loopexit
  %lpad.phi = phi { ptr, i32 } [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  resume { ptr, i32 } %lpad.phi

.lr.ph:                                           ; preds = %.preheader, %33
  %indvars.iv = phi i64 [ %27, %33 ], [ 0, %.preheader ]
  %.165 = phi i8 [ %.2, %33 ], [ %.027, %.preheader ]
  %.13064 = phi i32 [ %.231, %33 ], [ %.029, %.preheader ]
  %.13363 = phi i32 [ %.234, %33 ], [ %.032, %.preheader ]
  %.13662 = phi i32 [ %.237, %33 ], [ %.035, %.preheader ]
  %.13961 = phi i8 [ %.240, %33 ], [ %.038, %.preheader ]
  %.14260 = phi i32 [ %.243, %33 ], [ %.041, %.preheader ]
  %.14559 = phi i32 [ %.246, %33 ], [ %.044, %.preheader ]
  %.14858 = phi i32 [ %.249, %33 ], [ %.047, %.preheader ]
  %14 = icmp eq i8 %.165, 10
  %15 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %16 = load i8, ptr %15, align 1, !tbaa !10
  br i1 %14, label %23, label %17

17:                                               ; preds = %.lr.ph
  %18 = icmp ne i8 %.165, %16
  %19 = icmp eq i8 %.13961, 10
  %or.cond = select i1 %18, i1 %19, i1 false
  br i1 %or.cond, label %20, label %23

20:                                               ; preds = %17
  %21 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %22 = load i8, ptr %21, align 1, !tbaa !10
  br label %23

23:                                               ; preds = %.lr.ph, %17, %20
  %.240 = phi i8 [ %22, %20 ], [ %.13961, %17 ], [ %.13961, %.lr.ph ]
  %.2 = phi i8 [ %.165, %20 ], [ %.165, %17 ], [ %16, %.lr.ph ]
  %24 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %25 = load i8, ptr %24, align 1, !tbaa !10
  %26 = icmp eq i8 %25, %.2
  %27 = add nuw nsw i64 %indvars.iv, 1
  %28 = trunc nuw i64 %27 to i32
  br i1 %26, label %29, label %31

29:                                               ; preds = %23
  %30 = add nsw i32 %.14858, 1
  br label %33

31:                                               ; preds = %23
  %32 = add nsw i32 %.13662, 1
  br label %33

33:                                               ; preds = %29, %31
  %.249 = phi i32 [ %30, %29 ], [ %.14858, %31 ]
  %.246 = phi i32 [ %.pre, %29 ], [ %.14559, %31 ]
  %.243 = phi i32 [ %28, %29 ], [ %.14260, %31 ]
  %.237 = phi i32 [ %.13662, %29 ], [ %32, %31 ]
  %.234 = phi i32 [ %.13363, %29 ], [ %.pre, %31 ]
  %.231 = phi i32 [ %.13064, %29 ], [ %28, %31 ]
  %34 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %35 = icmp ugt i64 %34, %27
  br i1 %35, label %.lr.ph, label %._crit_edge, !llvm.loop !12

36:                                               ; preds = %11
  %37 = icmp slt i32 %.047, %.035
  br i1 %37, label %38, label %48

38:                                               ; preds = %36
  %39 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
          to label %40 unwind label %.loopexit.split-lp

40:                                               ; preds = %38
  %41 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %39, i32 noundef %.044)
          to label %42 unwind label %.loopexit.split-lp

42:                                               ; preds = %40
  %43 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %41, ptr noundef nonnull @.str.1)
          to label %.invoke86 unwind label %.loopexit.split-lp

.invoke86:                                        ; preds = %52, %42
  %44 = phi ptr [ %43, %42 ], [ %53, %52 ]
  %45 = phi i32 [ %.041, %42 ], [ %.029, %52 ]
  %46 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %44, i32 noundef %45)
          to label %.invoke unwind label %.loopexit.split-lp

.invoke:                                          ; preds = %.invoke86
  %47 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %46, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %54 unwind label %.loopexit.split-lp

48:                                               ; preds = %36
  %49 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
          to label %50 unwind label %.loopexit.split-lp

50:                                               ; preds = %48
  %51 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %49, i32 noundef %.032)
          to label %52 unwind label %.loopexit.split-lp

52:                                               ; preds = %50
  %53 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %51, ptr noundef nonnull @.str.1)
          to label %.invoke86 unwind label %.loopexit.split-lp

54:                                               ; preds = %.invoke
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  ret i32 0
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) 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 void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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 uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(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) #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 #1

; 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 #5 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)) #4

; 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 = { "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 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 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}
!10 = !{!11, !11, i64 0}
!11 = !{!"omnipotent char", !7, i64 0}
!12 = distinct !{!12, !9}


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