; LLVM IR from kazunetakahashi/atcoder :: 2019/0519_ABC126 (F)

; 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<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.std::back_insert_iterator" = type { ptr }

@_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 [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; 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) #1

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z2Nov() #2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca %"class.std::vector", align 8
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca %"class.std::back_insert_iterator", align 8
  %13 = alloca %"class.std::back_insert_iterator", align 8
  %14 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %15 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %16 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %17 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %18 = alloca %"class.std::back_insert_iterator", align 8
  %19 = alloca %"class.std::back_insert_iterator", align 8
  %20 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #6
  %21 = 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)
  %22 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %21, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %23 = load i32, ptr %3, align 4, !tbaa !5
  %24 = load i32, ptr %2, align 4, !tbaa !5
  %25 = shl i32 1, %24
  %26 = icmp sge i32 %23, %25
  br i1 %26, label %27, label %28

27:                                               ; preds = %0
  call void @_Z2Nov()
  br label %28

28:                                               ; preds = %27, %0
  %29 = load i32, ptr %2, align 4, !tbaa !5
  %30 = icmp eq i32 %29, 0
  br i1 %30, label %31, label %34

31:                                               ; preds = %28
  %32 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.2)
  %33 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %32, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %4, align 4
  br label %154

34:                                               ; preds = %28
  %35 = load i32, ptr %2, align 4, !tbaa !5
  %36 = icmp eq i32 %35, 1
  br i1 %36, label %37, label %43

37:                                               ; preds = %34
  %38 = load i32, ptr %3, align 4, !tbaa !5
  %39 = icmp eq i32 %38, 0
  br i1 %39, label %40, label %43

40:                                               ; preds = %37
  %41 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.3)
  %42 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %41, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %4, align 4
  br label %154

43:                                               ; preds = %37, %34
  %44 = load i32, ptr %2, align 4, !tbaa !5
  %45 = icmp eq i32 %44, 1
  br i1 %45, label %46, label %50

46:                                               ; preds = %43
  %47 = load i32, ptr %3, align 4, !tbaa !5
  %48 = icmp eq i32 %47, 1
  br i1 %48, label %49, label %50

49:                                               ; preds = %46
  call void @_Z2Nov()
  br label %50

50:                                               ; preds = %49, %46, %43
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #6
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #6
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #6
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %51

51:                                               ; preds = %68, %50
  %52 = load i32, ptr %7, align 4, !tbaa !5
  %53 = load i32, ptr %2, align 4, !tbaa !5
  %54 = shl i32 1, %53
  %55 = icmp slt i32 %52, %54
  br i1 %55, label %57, label %56

56:                                               ; preds = %51
  store i32 2, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  br label %71

57:                                               ; preds = %51
  %58 = load i32, ptr %7, align 4, !tbaa !5
  %59 = load i32, ptr %3, align 4, !tbaa !5
  %60 = icmp ne i32 %58, %59
  br i1 %60, label %61, label %67

61:                                               ; preds = %57
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %6, ptr noundef nonnull align 4 dereferenceable(4) %7)
          to label %62 unwind label %63

62:                                               ; preds = %61
  br label %67

63:                                               ; preds = %61
  %64 = landingpad { ptr, i32 }
          cleanup
  %65 = extractvalue { ptr, i32 } %64, 0
  store ptr %65, ptr %8, align 8
  %66 = extractvalue { ptr, i32 } %64, 1
  store i32 %66, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  br label %158

67:                                               ; preds = %62, %57
  br label %68

68:                                               ; preds = %67
  %69 = load i32, ptr %7, align 4, !tbaa !5
  %70 = add nsw i32 %69, 1
  store i32 %70, ptr %7, align 4, !tbaa !5
  br label %51, !llvm.loop !9

71:                                               ; preds = %56
  %72 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #6
  %73 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  store ptr %72, ptr %73, align 8
  %74 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #6
  %75 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %74, ptr %75, align 8
  %76 = invoke ptr @_ZSt13back_inserterISt6vectorIiSaIiEEESt20back_insert_iteratorIT_ERS4_(ptr noundef nonnull align 8 dereferenceable(24) %5)
          to label %77 unwind label %122

77:                                               ; preds = %71
  %78 = getelementptr inbounds %"class.std::back_insert_iterator", ptr %12, i32 0, i32 0
  store ptr %76, ptr %78, align 8
  %79 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  %80 = load ptr, ptr %79, align 8
  %81 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  %82 = load ptr, ptr %81, align 8
  %83 = getelementptr inbounds %"class.std::back_insert_iterator", ptr %12, i32 0, i32 0
  %84 = load ptr, ptr %83, align 8
  %85 = invoke ptr @_ZSt4copyIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEESt20back_insert_iteratorIS5_EET0_T_SA_S9_(ptr %80, ptr %82, ptr %84)
          to label %86 unwind label %122

86:                                               ; preds = %77
  %87 = getelementptr inbounds %"class.std::back_insert_iterator", ptr %13, i32 0, i32 0
  store ptr %85, ptr %87, align 8
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %88 unwind label %122

88:                                               ; preds = %86
  %89 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #6
  %90 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %14, i32 0, i32 0
  store ptr %89, ptr %90, align 8
  %91 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #6
  %92 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %15, i32 0, i32 0
  store ptr %91, ptr %92, align 8
  %93 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %14, i32 0, i32 0
  %94 = load ptr, ptr %93, align 8
  %95 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %15, i32 0, i32 0
  %96 = load ptr, ptr %95, align 8
  invoke void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr %94, ptr %96)
          to label %97 unwind label %122

97:                                               ; preds = %88
  %98 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #6
  %99 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %16, i32 0, i32 0
  store ptr %98, ptr %99, align 8
  %100 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #6
  %101 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %17, i32 0, i32 0
  store ptr %100, ptr %101, align 8
  %102 = invoke ptr @_ZSt13back_inserterISt6vectorIiSaIiEEESt20back_insert_iteratorIT_ERS4_(ptr noundef nonnull align 8 dereferenceable(24) %5)
          to label %103 unwind label %122

103:                                              ; preds = %97
  %104 = getelementptr inbounds %"class.std::back_insert_iterator", ptr %18, i32 0, i32 0
  store ptr %102, ptr %104, align 8
  %105 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %16, i32 0, i32 0
  %106 = load ptr, ptr %105, align 8
  %107 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %17, i32 0, i32 0
  %108 = load ptr, ptr %107, align 8
  %109 = getelementptr inbounds %"class.std::back_insert_iterator", ptr %18, i32 0, i32 0
  %110 = load ptr, ptr %109, align 8
  %111 = invoke ptr @_ZSt4copyIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEESt20back_insert_iteratorIS5_EET0_T_SA_S9_(ptr %106, ptr %108, ptr %110)
          to label %112 unwind label %122

112:                                              ; preds = %103
  %113 = getelementptr inbounds %"class.std::back_insert_iterator", ptr %19, i32 0, i32 0
  store ptr %111, ptr %113, align 8
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %114 unwind label %122

114:                                              ; preds = %112
  call void @llvm.lifetime.start.p0(i64 4, ptr %20) #6
  store i32 0, ptr %20, align 4, !tbaa !5
  br label %115

115:                                              ; preds = %150, %114
  %116 = load i32, ptr %20, align 4, !tbaa !5
  %117 = load i32, ptr %2, align 4, !tbaa !5
  %118 = add nsw i32 %117, 1
  %119 = shl i32 1, %118
  %120 = icmp slt i32 %116, %119
  br i1 %120, label %126, label %121

121:                                              ; preds = %115
  store i32 5, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #6
  br label %153

122:                                              ; preds = %112, %103, %97, %88, %86, %77, %71
  %123 = landingpad { ptr, i32 }
          cleanup
  %124 = extractvalue { ptr, i32 } %123, 0
  store ptr %124, ptr %8, align 8
  %125 = extractvalue { ptr, i32 } %123, 1
  store i32 %125, ptr %9, align 4
  br label %158

126:                                              ; preds = %115
  %127 = load i32, ptr %20, align 4, !tbaa !5
  %128 = sext i32 %127 to i64
  %129 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %128) #6
  %130 = load i32, ptr %129, align 4, !tbaa !5
  %131 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %130)
          to label %132 unwind label %142

132:                                              ; preds = %126
  %133 = load i32, ptr %20, align 4, !tbaa !5
  %134 = load i32, ptr %2, align 4, !tbaa !5
  %135 = add nsw i32 %134, 1
  %136 = shl i32 1, %135
  %137 = sub nsw i32 %136, 1
  %138 = icmp slt i32 %133, %137
  br i1 %138, label %139, label %146

139:                                              ; preds = %132
  %140 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.4)
          to label %141 unwind label %142

141:                                              ; preds = %139
  br label %149

142:                                              ; preds = %146, %139, %126
  %143 = landingpad { ptr, i32 }
          cleanup
  %144 = extractvalue { ptr, i32 } %143, 0
  store ptr %144, ptr %8, align 8
  %145 = extractvalue { ptr, i32 } %143, 1
  store i32 %145, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #6
  br label %158

146:                                              ; preds = %132
  %147 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %148 unwind label %142

148:                                              ; preds = %146
  br label %149

149:                                              ; preds = %148, %141
  br label %150

150:                                              ; preds = %149
  %151 = load i32, ptr %20, align 4, !tbaa !5
  %152 = add nsw i32 %151, 1
  store i32 %152, ptr %20, align 4, !tbaa !5
  br label %115, !llvm.loop !11

153:                                              ; preds = %121
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #6
  store i32 0, ptr %4, align 4
  br label %154

154:                                              ; preds = %153, %40, %31
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  %155 = load i32, ptr %4, align 4
  switch i32 %155, label %164 [
    i32 0, label %156
    i32 1, label %156
  ]

156:                                              ; preds = %154, %154
  %157 = load i32, ptr %1, align 4
  ret i32 %157

158:                                              ; preds = %142, %122, %63
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %159

159:                                              ; preds = %158
  %160 = load ptr, ptr %8, align 8
  %161 = load i32, ptr %9, align 4
  %162 = insertvalue { ptr, i32 } poison, ptr %160, 0
  %163 = insertvalue { ptr, i32 } %162, i32 %161, 1
  resume { ptr, i32 } %163

164:                                              ; preds = %154
  unreachable
}

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 @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt4copyIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEESt20back_insert_iteratorIS5_EET0_T_SA_S9_(ptr, ptr, ptr) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #5 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt13back_inserterISt6vectorIiSaIiEEESt20back_insert_iteratorIT_ERS4_(ptr noundef nonnull align 8 dereferenceable(24)) #1

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr, ptr) #1

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 noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

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


; 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<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@_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 [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; 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 #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 #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z2Nov() local_unnamed_addr #2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 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::vector", align 8
  %5 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #6
  %6 = 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)
  %7 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %6, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = load i32, ptr %1, align 4, !tbaa !5
  %10 = shl nuw i32 1, %9
  %.not = icmp slt i32 %8, %10
  br i1 %.not, label %12, label %11

11:                                               ; preds = %0
  call void @_Z2Nov()
  %.pr = load i32, ptr %1, align 4, !tbaa !5
  br label %12

12:                                               ; preds = %11, %0
  %13 = phi i32 [ %.pr, %11 ], [ %9, %0 ]
  %14 = icmp eq i32 %13, 0
  br i1 %14, label %15, label %18

15:                                               ; preds = %12
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.2)
  %17 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %16, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %81

18:                                               ; preds = %12
  %19 = icmp eq i32 %13, 1
  %20 = load i32, ptr %2, align 4
  %21 = icmp eq i32 %20, 0
  %or.cond = select i1 %19, i1 %21, i1 false
  br i1 %or.cond, label %22, label %25

22:                                               ; preds = %18
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.3)
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %23, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %81

25:                                               ; preds = %18
  %26 = icmp eq i32 %20, 1
  %or.cond3 = select i1 %19, i1 %26, i1 false
  br i1 %or.cond3, label %27, label %28

27:                                               ; preds = %25
  call void @_Z2Nov()
  br label %28

28:                                               ; preds = %27, %25
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #6
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #6
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #6
  store i32 0, ptr %5, align 4, !tbaa !5
  %29 = load i32, ptr %1, align 4, !tbaa !5
  %.not29 = icmp eq i32 %29, 31
  br i1 %.not29, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %38, %28
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #6
  %30 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %31 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %32 = invoke ptr @_ZSt13back_inserterISt6vectorIiSaIiEEESt20back_insert_iteratorIT_ERS4_(ptr noundef nonnull align 8 dereferenceable(24) %3)
          to label %44 unwind label %58

.lr.ph:                                           ; preds = %28, %38
  %33 = phi i32 [ %39, %38 ], [ %29, %28 ]
  %storemerge25 = phi i32 [ %41, %38 ], [ 0, %28 ]
  %34 = load i32, ptr %2, align 4, !tbaa !5
  %.not23 = icmp eq i32 %storemerge25, %34
  br i1 %.not23, label %38, label %35

35:                                               ; preds = %.lr.ph
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %._crit_edge32 unwind label %36

._crit_edge32:                                    ; preds = %35
  %.pre = load i32, ptr %5, align 4, !tbaa !5
  %.pre33 = load i32, ptr %1, align 4, !tbaa !5
  br label %38

36:                                               ; preds = %35
  %37 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #6
  br label %82

38:                                               ; preds = %._crit_edge32, %.lr.ph
  %39 = phi i32 [ %.pre33, %._crit_edge32 ], [ %33, %.lr.ph ]
  %40 = phi i32 [ %.pre, %._crit_edge32 ], [ %storemerge25, %.lr.ph ]
  %41 = add nsw i32 %40, 1
  store i32 %41, ptr %5, align 4, !tbaa !5
  %42 = shl nuw i32 1, %39
  %43 = icmp slt i32 %41, %42
  br i1 %43, label %.lr.ph, label %._crit_edge, !llvm.loop !9

44:                                               ; preds = %._crit_edge
  %45 = invoke ptr @_ZSt4copyIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEESt20back_insert_iteratorIS5_EET0_T_SA_S9_(ptr %30, ptr %31, ptr %32)
          to label %46 unwind label %58

46:                                               ; preds = %44
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 4 dereferenceable(4) %2)
          to label %47 unwind label %58

47:                                               ; preds = %46
  %48 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %49 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  invoke void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr %48, ptr %49)
          to label %50 unwind label %58

50:                                               ; preds = %47
  %51 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %52 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %53 = invoke ptr @_ZSt13back_inserterISt6vectorIiSaIiEEESt20back_insert_iteratorIT_ERS4_(ptr noundef nonnull align 8 dereferenceable(24) %3)
          to label %54 unwind label %58

54:                                               ; preds = %50
  %55 = invoke ptr @_ZSt4copyIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEESt20back_insert_iteratorIS5_EET0_T_SA_S9_(ptr %51, ptr %52, ptr %53)
          to label %56 unwind label %58

56:                                               ; preds = %54
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 4 dereferenceable(4) %2)
          to label %.preheader unwind label %58

.preheader:                                       ; preds = %56
  %57 = load i32, ptr %1, align 4, !tbaa !5
  %.not30 = icmp eq i32 %57, 30
  br i1 %.not30, label %._crit_edge28, label %.lr.ph27

._crit_edge28:                                    ; preds = %75, %.preheader
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  br label %81

58:                                               ; preds = %56, %54, %50, %47, %46, %44, %._crit_edge
  %59 = landingpad { ptr, i32 }
          cleanup
  br label %82

.lr.ph27:                                         ; preds = %.preheader, %75
  %indvars.iv = phi i64 [ %indvars.iv.next, %75 ], [ 0, %.preheader ]
  %60 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv) #6
  %61 = load i32, ptr %60, align 4, !tbaa !5
  %62 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %61)
          to label %63 unwind label %71

63:                                               ; preds = %.lr.ph27
  %64 = load i32, ptr %1, align 4, !tbaa !5
  %65 = add nsw i32 %64, 1
  %notmask = shl nsw i32 -1, %65
  %66 = xor i32 %notmask, -1
  %67 = zext nneg i32 %66 to i64
  %68 = icmp ult i64 %indvars.iv, %67
  br i1 %68, label %69, label %73

69:                                               ; preds = %63
  %70 = 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.4)
          to label %75 unwind label %71

71:                                               ; preds = %73, %69, %.lr.ph27
  %72 = landingpad { ptr, i32 }
          cleanup
  br label %82

73:                                               ; preds = %63
  %74 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %75 unwind label %71

75:                                               ; preds = %69, %73
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %76 = load i32, ptr %1, align 4, !tbaa !5
  %77 = add nsw i32 %76, 1
  %78 = shl nuw i32 1, %77
  %79 = sext i32 %78 to i64
  %80 = icmp slt i64 %indvars.iv.next, %79
  br i1 %80, label %.lr.ph27, label %._crit_edge28, !llvm.loop !11

81:                                               ; preds = %._crit_edge28, %22, %15
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  ret i32 0

82:                                               ; preds = %71, %58, %36
  %.pn = phi { ptr, i32 } [ %37, %36 ], [ %72, %71 ], [ %59, %58 ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn
}

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 @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt4copyIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEESt20back_insert_iteratorIS5_EET0_T_SA_S9_(ptr, ptr, ptr) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #5 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt13back_inserterISt6vectorIiSaIiEEESt20back_insert_iteratorIT_ERS4_(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr, ptr) local_unnamed_addr #1

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 noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress 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 #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 = { 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: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass