; LLVM IR from DionysiosB/CodeForces :: 0300-0399 (363C-FixingTypos)

; 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] }
%"class.std::allocator" = type { i8 }

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

; 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 ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::allocator", align 1
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca %"class.std::allocator", align 1
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  %11 = 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 %12 unwind label %30

12:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 32, ptr %5) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef @.str, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %13 unwind label %34

13:                                               ; preds = %12
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %7) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef @.str, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %14 unwind label %38

14:                                               ; preds = %13
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #5
  %15 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 0)
          to label %16 unwind label %42

16:                                               ; preds = %14
  %17 = load i8, ptr %15, align 1, !tbaa !5
  %18 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %7, i8 noundef signext %17)
          to label %19 unwind label %42

19:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  store i64 1, ptr %9, align 8, !tbaa !8
  %20 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  %21 = icmp uge i64 %20, 2
  br i1 %21, label %22, label %50

22:                                               ; preds = %19
  %23 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 1)
          to label %24 unwind label %46

24:                                               ; preds = %22
  %25 = load i8, ptr %23, align 1, !tbaa !5
  %26 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %7, i8 noundef signext %25)
          to label %27 unwind label %46

27:                                               ; preds = %24
  %28 = load i64, ptr %9, align 8, !tbaa !8
  %29 = add nsw i64 %28, 1
  store i64 %29, ptr %9, align 8, !tbaa !8
  br label %50

30:                                               ; preds = %0
  %31 = landingpad { ptr, i32 }
          cleanup
  %32 = extractvalue { ptr, i32 } %31, 0
  store ptr %32, ptr %3, align 8
  %33 = extractvalue { ptr, i32 } %31, 1
  store i32 %33, ptr %4, align 4
  br label %138

34:                                               ; preds = %12
  %35 = landingpad { ptr, i32 }
          cleanup
  %36 = extractvalue { ptr, i32 } %35, 0
  store ptr %36, ptr %3, align 8
  %37 = extractvalue { ptr, i32 } %35, 1
  store i32 %37, ptr %4, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #5
  br label %137

38:                                               ; preds = %13
  %39 = landingpad { ptr, i32 }
          cleanup
  %40 = extractvalue { ptr, i32 } %39, 0
  store ptr %40, ptr %3, align 8
  %41 = extractvalue { ptr, i32 } %39, 1
  store i32 %41, ptr %4, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #5
  br label %136

42:                                               ; preds = %16, %14
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %3, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %4, align 4
  br label %135

46:                                               ; preds = %130, %128, %24, %22
  %47 = landingpad { ptr, i32 }
          cleanup
  %48 = extractvalue { ptr, i32 } %47, 0
  store ptr %48, ptr %3, align 8
  %49 = extractvalue { ptr, i32 } %47, 1
  store i32 %49, ptr %4, align 4
  br label %134

50:                                               ; preds = %27, %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  store i64 2, ptr %10, align 8, !tbaa !8
  br label %51

51:                                               ; preds = %125, %50
  %52 = load i64, ptr %10, align 8, !tbaa !8
  %53 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  %54 = icmp ult i64 %52, %53
  br i1 %54, label %56, label %55

55:                                               ; preds = %51
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  br label %128

56:                                               ; preds = %51
  %57 = load i64, ptr %10, align 8, !tbaa !8
  %58 = sub nsw i64 %57, 1
  %59 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %58)
          to label %60 unwind label %83

60:                                               ; preds = %56
  %61 = load i8, ptr %59, align 1, !tbaa !5
  %62 = sext i8 %61 to i32
  %63 = load i64, ptr %10, align 8, !tbaa !8
  %64 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %63)
          to label %65 unwind label %83

65:                                               ; preds = %60
  %66 = load i8, ptr %64, align 1, !tbaa !5
  %67 = sext i8 %66 to i32
  %68 = icmp eq i32 %62, %67
  br i1 %68, label %69, label %87

69:                                               ; preds = %65
  %70 = load i64, ptr %10, align 8, !tbaa !8
  %71 = sub nsw i64 %70, 2
  %72 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %71)
          to label %73 unwind label %83

73:                                               ; preds = %69
  %74 = load i8, ptr %72, align 1, !tbaa !5
  %75 = sext i8 %74 to i32
  %76 = load i64, ptr %10, align 8, !tbaa !8
  %77 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %76)
          to label %78 unwind label %83

78:                                               ; preds = %73
  %79 = load i8, ptr %77, align 1, !tbaa !5
  %80 = sext i8 %79 to i32
  %81 = icmp eq i32 %75, %80
  br i1 %81, label %82, label %87

82:                                               ; preds = %78
  br label %125

83:                                               ; preds = %119, %116, %104, %100, %91, %87, %73, %69, %60, %56
  %84 = landingpad { ptr, i32 }
          cleanup
  %85 = extractvalue { ptr, i32 } %84, 0
  store ptr %85, ptr %3, align 8
  %86 = extractvalue { ptr, i32 } %84, 1
  store i32 %86, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  br label %134

87:                                               ; preds = %78, %65
  %88 = load i64, ptr %10, align 8, !tbaa !8
  %89 = sub nsw i64 %88, 1
  %90 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %89)
          to label %91 unwind label %83

91:                                               ; preds = %87
  %92 = load i8, ptr %90, align 1, !tbaa !5
  %93 = sext i8 %92 to i32
  %94 = load i64, ptr %10, align 8, !tbaa !8
  %95 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %94)
          to label %96 unwind label %83

96:                                               ; preds = %91
  %97 = load i8, ptr %95, align 1, !tbaa !5
  %98 = sext i8 %97 to i32
  %99 = icmp eq i32 %93, %98
  br i1 %99, label %100, label %115

100:                                              ; preds = %96
  %101 = load i64, ptr %9, align 8, !tbaa !8
  %102 = sub nsw i64 %101, 3
  %103 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %102)
          to label %104 unwind label %83

104:                                              ; preds = %100
  %105 = load i8, ptr %103, align 1, !tbaa !5
  %106 = sext i8 %105 to i32
  %107 = load i64, ptr %9, align 8, !tbaa !8
  %108 = sub nsw i64 %107, 2
  %109 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %108)
          to label %110 unwind label %83

110:                                              ; preds = %104
  %111 = load i8, ptr %109, align 1, !tbaa !5
  %112 = sext i8 %111 to i32
  %113 = icmp eq i32 %106, %112
  br i1 %113, label %114, label %115

114:                                              ; preds = %110
  br label %125

115:                                              ; preds = %110, %96
  br label %116

116:                                              ; preds = %115
  %117 = load i64, ptr %10, align 8, !tbaa !8
  %118 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %117)
          to label %119 unwind label %83

119:                                              ; preds = %116
  %120 = load i8, ptr %118, align 1, !tbaa !5
  %121 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %7, i8 noundef signext %120)
          to label %122 unwind label %83

122:                                              ; preds = %119
  %123 = load i64, ptr %9, align 8, !tbaa !8
  %124 = add nsw i64 %123, 1
  store i64 %124, ptr %9, align 8, !tbaa !8
  br label %125

125:                                              ; preds = %122, %114, %82
  %126 = load i64, ptr %10, align 8, !tbaa !8
  %127 = add nsw i64 %126, 1
  store i64 %127, ptr %10, align 8, !tbaa !8
  br label %51, !llvm.loop !10

128:                                              ; preds = %55
  %129 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %7)
          to label %130 unwind label %46

130:                                              ; preds = %128
  %131 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %129, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %132 unwind label %46

132:                                              ; preds = %130
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #5
  %133 = load i32, ptr %1, align 4
  ret i32 %133

134:                                              ; preds = %83, %46
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br label %135

135:                                              ; preds = %134, %42
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #5
  br label %136

136:                                              ; preds = %135, %38
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  br label %137

137:                                              ; preds = %136, %34
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #5
  br label %138

138:                                              ; preds = %137, %30
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #5
  br label %139

139:                                              ; preds = %138
  %140 = load ptr, ptr %3, align 8
  %141 = load i32, ptr %4, align 4
  %142 = insertvalue { ptr, i32 } poison, ptr %140, 0
  %143 = insertvalue { ptr, i32 } %142, i32 %141, 1
  resume { ptr, i32 } %143
}

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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 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)) #3

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 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: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #4 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)) #3

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 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 #3 = { 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 #4 = { 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 = { 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 = !{!"long", !6, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


; 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] }
%"class.std::allocator" = type { i8 }

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

; 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 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::allocator", align 1
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::allocator", align 1
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  %6 = 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 %7 unwind label %20

7:                                                ; preds = %0
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull @.str, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %8 unwind label %22

8:                                                ; preds = %7
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull @.str, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %9 unwind label %24

9:                                                ; preds = %8
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #5
  %10 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 0)
  %11 = load i8, ptr %10, align 1, !tbaa !5
  %12 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %4, i8 noundef signext %11)
          to label %13 unwind label %26

13:                                               ; preds = %9
  %14 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  %15 = icmp ugt i64 %14, 1
  br i1 %15, label %16, label %30

16:                                               ; preds = %13
  %17 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 1)
  %18 = load i8, ptr %17, align 1, !tbaa !5
  %19 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %4, i8 noundef signext %18)
          to label %30 unwind label %28

20:                                               ; preds = %0
  %21 = landingpad { ptr, i32 }
          cleanup
  br label %79

22:                                               ; preds = %7
  %23 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #5
  br label %78

24:                                               ; preds = %8
  %25 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #5
  br label %77

26:                                               ; preds = %9
  %27 = landingpad { ptr, i32 }
          cleanup
  br label %76

28:                                               ; preds = %73, %._crit_edge, %16
  %29 = landingpad { ptr, i32 }
          cleanup
  br label %76

30:                                               ; preds = %16, %13
  %.015 = phi i64 [ 1, %13 ], [ 2, %16 ]
  %31 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  %32 = icmp ugt i64 %31, 2
  br i1 %32, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %69, %30
  %33 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %4)
          to label %73 unwind label %28

.lr.ph:                                           ; preds = %30, %69
  %.030 = phi i64 [ %70, %69 ], [ 2, %30 ]
  %.129 = phi i64 [ %.2, %69 ], [ %.015, %30 ]
  %34 = add nsw i64 %.030, -1
  %35 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %34)
  %36 = load i8, ptr %35, align 1, !tbaa !5
  %37 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %.030)
  %38 = load i8, ptr %37, align 1, !tbaa !5
  %39 = icmp eq i8 %36, %38
  br i1 %39, label %40, label %49

40:                                               ; preds = %.lr.ph
  %41 = add nsw i64 %.030, -2
  %42 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %41)
  %43 = load i8, ptr %42, align 1, !tbaa !5
  %44 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %.030)
  %45 = load i8, ptr %44, align 1, !tbaa !5
  %46 = icmp eq i8 %43, %45
  br i1 %46, label %69, label %49

47:                                               ; preds = %63
  %48 = landingpad { ptr, i32 }
          cleanup
  br label %76

49:                                               ; preds = %40, %.lr.ph
  %50 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %34)
  %51 = load i8, ptr %50, align 1, !tbaa !5
  %52 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %.030)
  %53 = load i8, ptr %52, align 1, !tbaa !5
  %54 = icmp eq i8 %51, %53
  br i1 %54, label %55, label %63

55:                                               ; preds = %49
  %56 = add nsw i64 %.129, -3
  %57 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %56)
  %58 = load i8, ptr %57, align 1, !tbaa !5
  %59 = add nsw i64 %.129, -2
  %60 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %59)
  %61 = load i8, ptr %60, align 1, !tbaa !5
  %62 = icmp eq i8 %58, %61
  br i1 %62, label %69, label %63

63:                                               ; preds = %49, %55
  %64 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %.030)
  %65 = load i8, ptr %64, align 1, !tbaa !5
  %66 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %4, i8 noundef signext %65)
          to label %67 unwind label %47

67:                                               ; preds = %63
  %68 = add nsw i64 %.129, 1
  br label %69

69:                                               ; preds = %55, %40, %67
  %.2 = phi i64 [ %.129, %40 ], [ %.129, %55 ], [ %68, %67 ]
  %70 = add nuw nsw i64 %.030, 1
  %71 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  %72 = icmp ult i64 %70, %71
  br i1 %72, label %.lr.ph, label %._crit_edge, !llvm.loop !8

73:                                               ; preds = %._crit_edge
  %74 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %33, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %75 unwind label %28

75:                                               ; preds = %73
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #5
  ret i32 0

76:                                               ; preds = %28, %47, %26
  %.pn.pn = phi { ptr, i32 } [ %27, %26 ], [ %48, %47 ], [ %29, %28 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #5
  br label %77

77:                                               ; preds = %76, %24
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %76 ], [ %25, %24 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  br label %78

78:                                               ; preds = %77, %22
  %.pn.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn.pn, %77 ], [ %23, %22 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #5
  br label %79

79:                                               ; preds = %78, %20
  %.pn.pn.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn.pn.pn, %78 ], [ %21, %20 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #5
  resume { ptr, i32 } %.pn.pn.pn.pn.pn
}

; 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 nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 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 #3

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 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: 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 #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) 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 #4 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)) #3

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 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 #3 = { 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 #4 = { 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 = { 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 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass