; LLVM IR from kazunetakahashi/atcoder :: 2020/0112_ABC151 (C)

; 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_ostream" = type { ptr, %"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_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"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] }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>
%"struct.std::_Bit_reference" = type { ptr, i64 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 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) #0

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #1 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)) #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca %"class.std::allocator", align 1
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca %"class.std::__cxx11::basic_string", align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  %16 = alloca ptr, align 8
  %17 = alloca %"struct.std::_Bit_iterator", align 8
  %18 = alloca { ptr, i32 }, align 8
  %19 = alloca %"struct.std::_Bit_iterator", align 8
  %20 = alloca { ptr, i32 }, align 8
  %21 = alloca %"struct.std::_Bit_reference", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #8
  %22 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %23 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %22, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @llvm.lifetime.start.p0(i64 24, ptr %4) #8
  %24 = load i32, ptr %2, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #8
  call void @_ZNSaISt6vectorIbSaIbEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #8
  invoke void @_ZNSt6vectorIS_IbSaIbEESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %25, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %26 unwind label %32

26:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorISt6vectorIbSaIbEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #8
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #8
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %27

27:                                               ; preds = %49, %26
  %28 = load i32, ptr %8, align 4, !tbaa !5
  %29 = load i32, ptr %3, align 4, !tbaa !5
  %30 = icmp slt i32 %28, %29
  br i1 %30, label %36, label %31

31:                                               ; preds = %27
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #8
  br label %56

32:                                               ; preds = %0
  %33 = landingpad { ptr, i32 }
          cleanup
  %34 = extractvalue { ptr, i32 } %33, 0
  store ptr %34, ptr %6, align 8
  %35 = extractvalue { ptr, i32 } %33, 1
  store i32 %35, ptr %7, align 4
  call void @_ZNSt15__new_allocatorISt6vectorIbSaIbEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #8
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #8
  br label %130

36:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #8
  call void @llvm.lifetime.start.p0(i64 32, ptr %10) #8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #8
  %37 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %9)
          to label %38 unwind label %52

38:                                               ; preds = %36
  %39 = 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) %37, ptr noundef nonnull align 8 dereferenceable(32) %10)
          to label %40 unwind label %52

40:                                               ; preds = %38
  %41 = load i32, ptr %9, align 4, !tbaa !5
  %42 = add nsw i32 %41, -1
  store i32 %42, ptr %9, align 4, !tbaa !5
  %43 = load i32, ptr %9, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %44) #8
  %46 = invoke noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %10, ptr noundef @.str.2)
          to label %47 unwind label %52

47:                                               ; preds = %40
  invoke void @_ZNSt6vectorIbSaIbEE9push_backEb(ptr noundef nonnull align 8 dereferenceable(40) %45, i1 noundef zeroext %46)
          to label %48 unwind label %52

48:                                               ; preds = %47
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #8
  br label %49

49:                                               ; preds = %48
  %50 = load i32, ptr %8, align 4, !tbaa !5
  %51 = add nsw i32 %50, 1
  store i32 %51, ptr %8, align 4, !tbaa !5
  br label %27, !llvm.loop !9

52:                                               ; preds = %47, %40, %38, %36
  %53 = landingpad { ptr, i32 }
          cleanup
  %54 = extractvalue { ptr, i32 } %53, 0
  store ptr %54, ptr %6, align 8
  %55 = extractvalue { ptr, i32 } %53, 1
  store i32 %55, ptr %7, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #8
  br label %129

56:                                               ; preds = %31
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #8
  store i32 0, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #8
  store i32 0, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #8
  store i32 0, ptr %13, align 4, !tbaa !5
  br label %57

57:                                               ; preds = %109, %56
  %58 = load i32, ptr %13, align 4, !tbaa !5
  %59 = load i32, ptr %2, align 4, !tbaa !5
  %60 = icmp slt i32 %58, %59
  br i1 %60, label %62, label %61

61:                                               ; preds = %57
  store i32 5, ptr %14, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #8
  br label %112

62:                                               ; preds = %57
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #8
  store i32 0, ptr %15, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #8
  %63 = load i32, ptr %13, align 4, !tbaa !5
  %64 = sext i32 %63 to i64
  %65 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %64) #8
  store ptr %65, ptr %16, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 16, ptr %17) #8
  %66 = load ptr, ptr %16, align 8, !tbaa !11
  %67 = call { ptr, i32 } @_ZNSt6vectorIbSaIbEE5beginEv(ptr noundef nonnull align 8 dereferenceable(40) %66) #8
  store { ptr, i32 } %67, ptr %18, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %17, ptr align 8 %18, i64 12, i1 false)
  call void @llvm.lifetime.start.p0(i64 16, ptr %19) #8
  %68 = load ptr, ptr %16, align 8, !tbaa !11
  %69 = call { ptr, i32 } @_ZNSt6vectorIbSaIbEE3endEv(ptr noundef nonnull align 8 dereferenceable(40) %68) #8
  store { ptr, i32 } %69, ptr %20, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %19, ptr align 8 %20, i64 12, i1 false)
  br label %70

70:                                               ; preds = %105, %62
  %71 = invoke noundef zeroext i1 @_ZStneRKSt18_Bit_iterator_baseS1_(ptr noundef nonnull align 8 dereferenceable(12) %17, ptr noundef nonnull align 8 dereferenceable(12) %19)
          to label %72 unwind label %74

72:                                               ; preds = %70
  br i1 %71, label %78, label %73

73:                                               ; preds = %72
  store i32 8, ptr %14, align 4
  br label %106

74:                                               ; preds = %103, %70
  %75 = landingpad { ptr, i32 }
          cleanup
  %76 = extractvalue { ptr, i32 } %75, 0
  store ptr %76, ptr %6, align 8
  %77 = extractvalue { ptr, i32 } %75, 1
  store i32 %77, ptr %7, align 4
  br label %107

78:                                               ; preds = %72
  call void @llvm.lifetime.start.p0(i64 16, ptr %21) #8
  %79 = invoke { ptr, i64 } @_ZNKSt13_Bit_iteratordeEv(ptr noundef nonnull align 8 dereferenceable(12) %17)
          to label %80 unwind label %92

80:                                               ; preds = %78
  %81 = getelementptr inbounds { ptr, i64 }, ptr %21, i32 0, i32 0
  %82 = extractvalue { ptr, i64 } %79, 0
  store ptr %82, ptr %81, align 8
  %83 = getelementptr inbounds { ptr, i64 }, ptr %21, i32 0, i32 1
  %84 = extractvalue { ptr, i64 } %79, 1
  store i64 %84, ptr %83, align 8
  %85 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %21) #8
  br i1 %85, label %86, label %96

86:                                               ; preds = %80
  %87 = load i32, ptr %11, align 4, !tbaa !5
  %88 = add nsw i32 %87, 1
  store i32 %88, ptr %11, align 4, !tbaa !5
  %89 = load i32, ptr %15, align 4, !tbaa !5
  %90 = load i32, ptr %12, align 4, !tbaa !5
  %91 = add nsw i32 %90, %89
  store i32 %91, ptr %12, align 4, !tbaa !5
  store i32 8, ptr %14, align 4
  br label %100

92:                                               ; preds = %78
  %93 = landingpad { ptr, i32 }
          cleanup
  %94 = extractvalue { ptr, i32 } %93, 0
  store ptr %94, ptr %6, align 8
  %95 = extractvalue { ptr, i32 } %93, 1
  store i32 %95, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %21) #8
  br label %107

96:                                               ; preds = %80
  %97 = load i32, ptr %15, align 4, !tbaa !5
  %98 = add nsw i32 %97, 1
  store i32 %98, ptr %15, align 4, !tbaa !5
  br label %99

99:                                               ; preds = %96
  store i32 0, ptr %14, align 4
  br label %100

100:                                              ; preds = %99, %86
  call void @llvm.lifetime.end.p0(i64 16, ptr %21) #8
  %101 = load i32, ptr %14, align 4
  switch i32 %101, label %106 [
    i32 0, label %102
  ]

102:                                              ; preds = %100
  br label %103

103:                                              ; preds = %102
  %104 = invoke noundef nonnull align 8 dereferenceable(12) ptr @_ZNSt13_Bit_iteratorppEv(ptr noundef nonnull align 8 dereferenceable(12) %17)
          to label %105 unwind label %74

105:                                              ; preds = %103
  br label %70

106:                                              ; preds = %100, %73
  call void @llvm.lifetime.end.p0(i64 16, ptr %19) #8
  call void @llvm.lifetime.end.p0(i64 16, ptr %17) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #8
  br label %108

107:                                              ; preds = %92, %74
  call void @llvm.lifetime.end.p0(i64 16, ptr %19) #8
  call void @llvm.lifetime.end.p0(i64 16, ptr %17) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #8
  br label %128

108:                                              ; preds = %106
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #8
  br label %109

109:                                              ; preds = %108
  %110 = load i32, ptr %13, align 4, !tbaa !5
  %111 = add nsw i32 %110, 1
  store i32 %111, ptr %13, align 4, !tbaa !5
  br label %57, !llvm.loop !13

112:                                              ; preds = %61
  %113 = load i32, ptr %11, align 4, !tbaa !5
  %114 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %113)
          to label %115 unwind label %124

115:                                              ; preds = %112
  %116 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %114, ptr noundef @.str.3)
          to label %117 unwind label %124

117:                                              ; preds = %115
  %118 = load i32, ptr %12, align 4, !tbaa !5
  %119 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %116, i32 noundef %118)
          to label %120 unwind label %124

120:                                              ; preds = %117
  %121 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %119, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %122 unwind label %124

122:                                              ; preds = %120
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #8
  call void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #8
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  %123 = load i32, ptr %1, align 4
  ret i32 %123

124:                                              ; preds = %120, %117, %115, %112
  %125 = landingpad { ptr, i32 }
          cleanup
  %126 = extractvalue { ptr, i32 } %125, 0
  store ptr %126, ptr %6, align 8
  %127 = extractvalue { ptr, i32 } %125, 1
  store i32 %127, ptr %7, align 4
  br label %128

128:                                              ; preds = %124, %107
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #8
  br label %129

129:                                              ; preds = %128, %52
  call void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #8
  br label %130

130:                                              ; preds = %129, %32
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  br label %131

131:                                              ; preds = %130
  %132 = load ptr, ptr %6, align 8
  %133 = load i32, ptr %7, align 4
  %134 = insertvalue { ptr, i32 } poison, ptr %132, 0
  %135 = insertvalue { ptr, i32 } %134, i32 %133, 1
  resume { ptr, i32 } %135
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt6vectorIbSaIbEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IbSaIbEESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #5 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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEE9push_backEb(ptr noundef nonnull align 8 dereferenceable(40), i1 noundef zeroext) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #6

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local { ptr, i32 } @_ZNSt6vectorIbSaIbEE5beginEv(ptr noundef nonnull align 8 dereferenceable(40)) #5 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #7

; Function Attrs: mustprogress nounwind uwtable
declare dso_local { ptr, i32 } @_ZNSt6vectorIbSaIbEE3endEv(ptr noundef nonnull align 8 dereferenceable(40)) #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt18_Bit_iterator_baseS1_(ptr noundef nonnull align 8 dereferenceable(12), ptr noundef nonnull align 8 dereferenceable(12)) #1

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNKSt13_Bit_iteratordeEv(ptr noundef nonnull align 8 dereferenceable(12)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(12) ptr @_ZNSt13_Bit_iteratorppEv(ptr noundef nonnull align 8 dereferenceable(12)) #1 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt6vectorIbSaIbEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

attributes #0 = { 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 #1 = { 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 #2 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #6 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #8 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = distinct !{!13, !10}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_ostream" = type { ptr, %"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_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"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] }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>
%"struct.std::_Bit_reference" = type { ptr, i64 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 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 #0

; 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 #1 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)) #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::allocator", align 1
  %5 = alloca i32, align 4
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = alloca %"struct.std::_Bit_iterator", align 8
  %8 = alloca %"struct.std::_Bit_iterator", align 8
  %9 = alloca %"struct.std::_Bit_reference", align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  %10 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %11 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %10, ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #7
  %12 = load i32, ptr %1, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #7
  call void @_ZNSaISt6vectorIbSaIbEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #7
  invoke void @_ZNSt6vectorIS_IbSaIbEESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %13, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %14 unwind label %20

14:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorISt6vectorIbSaIbEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #7
  %15 = load i32, ptr %2, align 4, !tbaa !5
  %16 = icmp sgt i32 %15, 0
  br i1 %16, label %.lr.ph, label %.preheader

.preheader:                                       ; preds = %31, %14
  %17 = load i32, ptr %1, align 4, !tbaa !5
  %18 = icmp sgt i32 %17, 0
  br i1 %18, label %.lr.ph53, label %._crit_edge

.lr.ph53:                                         ; preds = %.preheader
  %.sroa.24.0..sroa_idx = getelementptr inbounds i8, ptr %7, i64 8
  %.sroa.2.0..sroa_idx = getelementptr inbounds i8, ptr %8, i64 8
  %19 = getelementptr inbounds i8, ptr %9, i64 8
  br label %38

20:                                               ; preds = %0
  %21 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt6vectorIbSaIbEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #7
  br label %74

.lr.ph:                                           ; preds = %14, %31
  %.02446 = phi i32 [ %32, %31 ], [ 0, %14 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %6) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #7
  %22 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %23 unwind label %35

23:                                               ; preds = %.lr.ph
  %24 = 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) %22, ptr noundef nonnull align 8 dereferenceable(32) %6)
          to label %25 unwind label %35

25:                                               ; preds = %23
  %26 = load i32, ptr %5, align 4, !tbaa !5
  %27 = add nsw i32 %26, -1
  store i32 %27, ptr %5, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %28) #7
  %30 = call noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull @.str.2)
  invoke void @_ZNSt6vectorIbSaIbEE9push_backEb(ptr noundef nonnull align 8 dereferenceable(40) %29, i1 noundef zeroext %30)
          to label %31 unwind label %35

31:                                               ; preds = %25
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  %32 = add nuw nsw i32 %.02446, 1
  %33 = load i32, ptr %2, align 4, !tbaa !5
  %34 = icmp slt i32 %32, %33
  br i1 %34, label %.lr.ph, label %.preheader, !llvm.loop !9

35:                                               ; preds = %25, %23, %.lr.ph
  %36 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  br label %73

._crit_edge:                                      ; preds = %.split.loop.exit, %.preheader
  %.029.lcssa = phi i32 [ 0, %.preheader ], [ %.332, %.split.loop.exit ]
  %.025.lcssa = phi i32 [ 0, %.preheader ], [ %.328, %.split.loop.exit ]
  %37 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.025.lcssa)
          to label %64 unwind label %71

38:                                               ; preds = %.lr.ph53, %.split.loop.exit
  %indvars.iv = phi i64 [ 0, %.lr.ph53 ], [ %indvars.iv.next, %.split.loop.exit ]
  %.02552 = phi i32 [ 0, %.lr.ph53 ], [ %.328, %.split.loop.exit ]
  %.02951 = phi i32 [ 0, %.lr.ph53 ], [ %.332, %.split.loop.exit ]
  %39 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv) #7
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %7) #7
  %40 = call { ptr, i32 } @_ZNSt6vectorIbSaIbEE5beginEv(ptr noundef nonnull align 8 dereferenceable(40) %39) #7
  %.fca.0.extract1 = extractvalue { ptr, i32 } %40, 0
  %.fca.1.extract2 = extractvalue { ptr, i32 } %40, 1
  store ptr %.fca.0.extract1, ptr %7, align 8
  store i32 %.fca.1.extract2, ptr %.sroa.24.0..sroa_idx, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %8) #7
  %41 = call { ptr, i32 } @_ZNSt6vectorIbSaIbEE3endEv(ptr noundef nonnull align 8 dereferenceable(40) %39) #7
  %.fca.0.extract = extractvalue { ptr, i32 } %41, 0
  %.fca.1.extract = extractvalue { ptr, i32 } %41, 1
  store ptr %.fca.0.extract, ptr %8, align 8
  store i32 %.fca.1.extract, ptr %.sroa.2.0..sroa_idx, align 8
  br label %42

42:                                               ; preds = %55, %38
  %.033 = phi i32 [ 0, %38 ], [ %56, %55 ]
  %43 = invoke noundef zeroext i1 @_ZStneRKSt18_Bit_iterator_baseS1_(ptr noundef nonnull align 8 dereferenceable(12) %7, ptr noundef nonnull align 8 dereferenceable(12) %8)
          to label %44 unwind label %45

44:                                               ; preds = %42
  br i1 %43, label %47, label %.split.loop.exit

45:                                               ; preds = %55, %42
  %46 = landingpad { ptr, i32 }
          cleanup
  br label %63

47:                                               ; preds = %44
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %9) #7
  %48 = invoke { ptr, i64 } @_ZNKSt13_Bit_iteratordeEv(ptr noundef nonnull align 8 dereferenceable(12) %7)
          to label %49 unwind label %53

49:                                               ; preds = %47
  %50 = extractvalue { ptr, i64 } %48, 0
  store ptr %50, ptr %9, align 8
  %51 = extractvalue { ptr, i64 } %48, 1
  store i64 %51, ptr %19, align 8
  %52 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %9) #7
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %9) #7
  br i1 %52, label %.split.loop.exit47, label %55

53:                                               ; preds = %47
  %54 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %9) #7
  br label %63

55:                                               ; preds = %49
  %56 = add nuw nsw i32 %.033, 1
  %57 = invoke noundef nonnull align 8 dereferenceable(12) ptr @_ZNSt13_Bit_iteratorppEv(ptr noundef nonnull align 8 dereferenceable(12) %7)
          to label %42 unwind label %45

.split.loop.exit47:                               ; preds = %49
  %58 = add nsw i32 %.02552, 1
  %59 = add nsw i32 %.033, %.02951
  br label %.split.loop.exit

.split.loop.exit:                                 ; preds = %44, %.split.loop.exit47
  %.332 = phi i32 [ %59, %.split.loop.exit47 ], [ %.02951, %44 ]
  %.328 = phi i32 [ %58, %.split.loop.exit47 ], [ %.02552, %44 ]
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %8) #7
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %7) #7
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %60 = load i32, ptr %1, align 4, !tbaa !5
  %61 = sext i32 %60 to i64
  %62 = icmp slt i64 %indvars.iv.next, %61
  br i1 %62, label %38, label %._crit_edge, !llvm.loop !11

63:                                               ; preds = %53, %45
  %.pn = phi { ptr, i32 } [ %46, %45 ], [ %54, %53 ]
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %8) #7
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %7) #7
  br label %73

64:                                               ; preds = %._crit_edge
  %65 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %37, ptr noundef nonnull @.str.3)
          to label %66 unwind label %71

66:                                               ; preds = %64
  %67 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %65, i32 noundef %.029.lcssa)
          to label %68 unwind label %71

68:                                               ; preds = %66
  %69 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %67, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %70 unwind label %71

70:                                               ; preds = %68
  call void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0

71:                                               ; preds = %68, %66, %64, %._crit_edge
  %72 = landingpad { ptr, i32 }
          cleanup
  br label %73

73:                                               ; preds = %63, %71, %35
  %.pn39 = phi { ptr, i32 } [ %36, %35 ], [ %.pn, %63 ], [ %72, %71 ]
  call void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  br label %74

74:                                               ; preds = %73, %20
  %.pn39.pn = phi { ptr, i32 } [ %.pn39, %73 ], [ %21, %20 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn39.pn
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt6vectorIbSaIbEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IbSaIbEESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #5 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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEE9push_backEb(ptr noundef nonnull align 8 dereferenceable(40), i1 noundef zeroext) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #6

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local { ptr, i32 } @_ZNSt6vectorIbSaIbEE5beginEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local { ptr, i32 } @_ZNSt6vectorIbSaIbEE3endEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt18_Bit_iterator_baseS1_(ptr noundef nonnull align 8 dereferenceable(12), ptr noundef nonnull align 8 dereferenceable(12)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNKSt13_Bit_iteratordeEv(ptr noundef nonnull align 8 dereferenceable(12)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(12) ptr @_ZNSt13_Bit_iteratorppEv(ptr noundef nonnull align 8 dereferenceable(12)) local_unnamed_addr #1 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt6vectorIbSaIbEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

attributes #0 = { 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 #1 = { 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 #2 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #6 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


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