; LLVM IR from kazunetakahashi/atcoder :: 2019/1005_AGC039 (A)

; 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::__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.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.std::initializer_list" = type { ptr, i64 }
%"class.std::allocator" = type { i8 }

@_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 [1 x i8], align 1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 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 noundef i64 @_Z4calcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #3 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #4 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca i64, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca i32, align 4
  %9 = alloca i64, align 8
  %10 = alloca i8, align 1
  %11 = alloca i32, align 4
  %12 = alloca %"class.std::__cxx11::basic_string", align 8
  %13 = alloca %"class.std::initializer_list", align 8
  %14 = alloca [1 x i8], align 1
  %15 = alloca %"class.std::allocator", align 1
  %16 = alloca %"class.std::__cxx11::basic_string", align 8
  %17 = alloca %"class.std::allocator", align 1
  %18 = alloca i8, align 1
  %19 = alloca i32, align 4
  %20 = alloca i64, align 8
  %21 = alloca %"class.std::__cxx11::basic_string", align 8
  %22 = alloca %"class.std::__cxx11::basic_string", align 8
  %23 = alloca %"class.std::__cxx11::basic_string", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  %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) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %25 unwind label %47

25:                                               ; preds = %0
  %26 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %24, ptr noundef nonnull align 8 dereferenceable(8) %3)
          to label %27 unwind label %47

27:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  %28 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %29 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %6, i32 0, i32 0
  store ptr %28, ptr %29, align 8
  %30 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #6
  %31 = load i8, ptr %30, align 1, !tbaa !5
  %32 = sext i8 %31 to i32
  %33 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4backEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %34 = load i8, ptr %33, align 1, !tbaa !5
  %35 = sext i8 %34 to i32
  %36 = icmp ne i32 %32, %35
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  br i1 %36, label %37, label %55

37:                                               ; preds = %27
  %38 = load i64, ptr %3, align 8, !tbaa !8
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %39 unwind label %47

39:                                               ; preds = %37
  %40 = invoke noundef i64 @_Z4calcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %7)
          to label %41 unwind label %51

41:                                               ; preds = %39
  %42 = mul nsw i64 %38, %40
  %43 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %42)
          to label %44 unwind label %51

44:                                               ; preds = %41
  %45 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %43, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %46 unwind label %51

46:                                               ; preds = %44
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #6
  store i32 0, ptr %1, align 4
  store i32 1, ptr %8, align 4
  br label %200

47:                                               ; preds = %37, %25, %0
  %48 = landingpad { ptr, i32 }
          cleanup
  %49 = extractvalue { ptr, i32 } %48, 0
  store ptr %49, ptr %4, align 8
  %50 = extractvalue { ptr, i32 } %48, 1
  store i32 %50, ptr %5, align 4
  br label %227

51:                                               ; preds = %44, %41, %39
  %52 = landingpad { ptr, i32 }
          cleanup
  %53 = extractvalue { ptr, i32 } %52, 0
  store ptr %53, ptr %4, align 8
  %54 = extractvalue { ptr, i32 } %52, 1
  store i32 %54, ptr %5, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #6
  br label %227

55:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  %56 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  store i64 %56, ptr %9, align 8, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 1, ptr %10) #6
  store i8 1, ptr %10, align 1, !tbaa !10
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #6
  store i32 0, ptr %11, align 4, !tbaa !12
  br label %57

57:                                               ; preds = %85, %55
  %58 = load i32, ptr %11, align 4, !tbaa !12
  %59 = sext i32 %58 to i64
  %60 = load i64, ptr %9, align 8, !tbaa !8
  %61 = sub nsw i64 %60, 1
  %62 = icmp slt i64 %59, %61
  br i1 %62, label %64, label %63

63:                                               ; preds = %57
  store i32 2, ptr %8, align 4
  br label %88

64:                                               ; preds = %57
  %65 = load i32, ptr %11, align 4, !tbaa !12
  %66 = sext i32 %65 to i64
  %67 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %66)
          to label %68 unwind label %80

68:                                               ; preds = %64
  %69 = load i8, ptr %67, align 1, !tbaa !5
  %70 = sext i8 %69 to i32
  %71 = load i32, ptr %11, align 4, !tbaa !12
  %72 = add nsw i32 %71, 1
  %73 = sext i32 %72 to i64
  %74 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %73)
          to label %75 unwind label %80

75:                                               ; preds = %68
  %76 = load i8, ptr %74, align 1, !tbaa !5
  %77 = sext i8 %76 to i32
  %78 = icmp ne i32 %70, %77
  br i1 %78, label %79, label %84

79:                                               ; preds = %75
  store i8 0, ptr %10, align 1, !tbaa !10
  store i32 2, ptr %8, align 4
  br label %88

80:                                               ; preds = %68, %64
  %81 = landingpad { ptr, i32 }
          cleanup
  %82 = extractvalue { ptr, i32 } %81, 0
  store ptr %82, ptr %4, align 8
  %83 = extractvalue { ptr, i32 } %81, 1
  store i32 %83, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %226

84:                                               ; preds = %75
  br label %85

85:                                               ; preds = %84
  %86 = load i32, ptr %11, align 4, !tbaa !12
  %87 = add nsw i32 %86, 1
  store i32 %87, ptr %11, align 4, !tbaa !12
  br label %57, !llvm.loop !14

88:                                               ; preds = %79, %63
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %89

89:                                               ; preds = %88
  %90 = load i8, ptr %10, align 1, !tbaa !10, !range !16, !noundef !17
  %91 = trunc i8 %90 to i1
  br i1 %91, label %92, label %105

92:                                               ; preds = %89
  %93 = load i64, ptr %9, align 8, !tbaa !8
  %94 = load i64, ptr %3, align 8, !tbaa !8
  %95 = mul nsw i64 %93, %94
  %96 = sdiv i64 %95, 2
  %97 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %96)
          to label %98 unwind label %101

98:                                               ; preds = %92
  %99 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %97, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %100 unwind label %101

100:                                              ; preds = %98
  store i32 0, ptr %1, align 4
  store i32 1, ptr %8, align 4
  br label %199

101:                                              ; preds = %98, %92
  %102 = landingpad { ptr, i32 }
          cleanup
  %103 = extractvalue { ptr, i32 } %102, 0
  store ptr %103, ptr %4, align 8
  %104 = extractvalue { ptr, i32 } %102, 1
  store i32 %104, ptr %5, align 4
  br label %226

105:                                              ; preds = %89
  call void @llvm.lifetime.start.p0(i64 32, ptr %12) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %14) #6
  %106 = 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 %107 unwind label %123

107:                                              ; preds = %105
  %108 = load i8, ptr %106, align 1, !tbaa !5
  store i8 %108, ptr %14, align 1, !tbaa !5
  %109 = getelementptr inbounds %"class.std::initializer_list", ptr %13, i32 0, i32 0
  store ptr %14, ptr %109, align 8, !tbaa !18
  %110 = getelementptr inbounds %"class.std::initializer_list", ptr %13, i32 0, i32 1
  store i64 1, ptr %110, align 8, !tbaa !22
  call void @llvm.lifetime.start.p0(i64 1, ptr %15) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %15) #6
  %111 = getelementptr inbounds { ptr, i64 }, ptr %13, i32 0, i32 0
  %112 = load ptr, ptr %111, align 8
  %113 = getelementptr inbounds { ptr, i64 }, ptr %13, i32 0, i32 1
  %114 = load i64, ptr %113, align 8
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ESt16initializer_listIcERKS3_(ptr noundef nonnull align 8 dereferenceable(32) %12, ptr %112, i64 %114, ptr noundef nonnull align 1 dereferenceable(1) %15)
          to label %115 unwind label %127

115:                                              ; preds = %107
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %15) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %15) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #6
  call void @llvm.lifetime.start.p0(i64 32, ptr %16) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %17) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %16, ptr noundef @.str.2, ptr noundef nonnull align 1 dereferenceable(1) %17)
          to label %116 unwind label %132

116:                                              ; preds = %115
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %18) #6
  store i8 1, ptr %18, align 1, !tbaa !10
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #6
  store i32 1, ptr %19, align 4, !tbaa !12
  br label %117

117:                                              ; preds = %176, %116
  %118 = load i32, ptr %19, align 4, !tbaa !12
  %119 = sext i32 %118 to i64
  %120 = load i64, ptr %9, align 8, !tbaa !8
  %121 = icmp slt i64 %119, %120
  br i1 %121, label %136, label %122

122:                                              ; preds = %117
  store i32 5, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #6
  br label %179

123:                                              ; preds = %105
  %124 = landingpad { ptr, i32 }
          cleanup
  %125 = extractvalue { ptr, i32 } %124, 0
  store ptr %125, ptr %4, align 8
  %126 = extractvalue { ptr, i32 } %124, 1
  store i32 %126, ptr %5, align 4
  br label %131

127:                                              ; preds = %107
  %128 = landingpad { ptr, i32 }
          cleanup
  %129 = extractvalue { ptr, i32 } %128, 0
  store ptr %129, ptr %4, align 8
  %130 = extractvalue { ptr, i32 } %128, 1
  store i32 %130, ptr %5, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %15) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %15) #6
  br label %131

131:                                              ; preds = %127, %123
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #6
  br label %225

132:                                              ; preds = %115
  %133 = landingpad { ptr, i32 }
          cleanup
  %134 = extractvalue { ptr, i32 } %133, 0
  store ptr %134, ptr %4, align 8
  %135 = extractvalue { ptr, i32 } %133, 1
  store i32 %135, ptr %5, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #6
  br label %224

136:                                              ; preds = %117
  %137 = load i32, ptr %19, align 4, !tbaa !12
  %138 = sub nsw i32 %137, 1
  %139 = sext i32 %138 to i64
  %140 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %139)
          to label %141 unwind label %152

141:                                              ; preds = %136
  %142 = load i8, ptr %140, align 1, !tbaa !5
  %143 = sext i8 %142 to i32
  %144 = load i32, ptr %19, align 4, !tbaa !12
  %145 = sext i32 %144 to i64
  %146 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %145)
          to label %147 unwind label %152

147:                                              ; preds = %141
  %148 = load i8, ptr %146, align 1, !tbaa !5
  %149 = sext i8 %148 to i32
  %150 = icmp ne i32 %143, %149
  br i1 %150, label %151, label %156

151:                                              ; preds = %147
  store i8 0, ptr %18, align 1, !tbaa !10
  br label %156

152:                                              ; preds = %171, %167, %163, %159, %141, %136
  %153 = landingpad { ptr, i32 }
          cleanup
  %154 = extractvalue { ptr, i32 } %153, 0
  store ptr %154, ptr %4, align 8
  %155 = extractvalue { ptr, i32 } %153, 1
  store i32 %155, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #6
  br label %223

156:                                              ; preds = %151, %147
  %157 = load i8, ptr %18, align 1, !tbaa !10, !range !16, !noundef !17
  %158 = trunc i8 %157 to i1
  br i1 %158, label %159, label %167

159:                                              ; preds = %156
  %160 = load i32, ptr %19, align 4, !tbaa !12
  %161 = sext i32 %160 to i64
  %162 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %161)
          to label %163 unwind label %152

163:                                              ; preds = %159
  %164 = load i8, ptr %162, align 1, !tbaa !5
  %165 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %12, i8 noundef signext %164)
          to label %166 unwind label %152

166:                                              ; preds = %163
  br label %175

167:                                              ; preds = %156
  %168 = load i32, ptr %19, align 4, !tbaa !12
  %169 = sext i32 %168 to i64
  %170 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %169)
          to label %171 unwind label %152

171:                                              ; preds = %167
  %172 = load i8, ptr %170, align 1, !tbaa !5
  %173 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %16, i8 noundef signext %172)
          to label %174 unwind label %152

174:                                              ; preds = %171
  br label %175

175:                                              ; preds = %174, %166
  br label %176

176:                                              ; preds = %175
  %177 = load i32, ptr %19, align 4, !tbaa !12
  %178 = add nsw i32 %177, 1
  store i32 %178, ptr %19, align 4, !tbaa !12
  br label %117, !llvm.loop !23

179:                                              ; preds = %122
  call void @llvm.lifetime.start.p0(i64 8, ptr %20) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %21, ptr noundef nonnull align 8 dereferenceable(32) %12)
          to label %180 unwind label %204

180:                                              ; preds = %179
  %181 = invoke noundef i64 @_Z4calcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %21)
          to label %182 unwind label %208

182:                                              ; preds = %180
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_SA_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %22, ptr noundef nonnull align 8 dereferenceable(32) %16, ptr noundef nonnull align 8 dereferenceable(32) %12)
          to label %183 unwind label %208

183:                                              ; preds = %182
  %184 = invoke noundef i64 @_Z4calcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %22)
          to label %185 unwind label %212

185:                                              ; preds = %183
  %186 = load i64, ptr %3, align 8, !tbaa !8
  %187 = sub nsw i64 %186, 1
  %188 = mul nsw i64 %184, %187
  %189 = add nsw i64 %181, %188
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %23, ptr noundef nonnull align 8 dereferenceable(32) %16)
          to label %190 unwind label %212

190:                                              ; preds = %185
  %191 = invoke noundef i64 @_Z4calcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %23)
          to label %192 unwind label %216

192:                                              ; preds = %190
  %193 = add nsw i64 %189, %191
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %23) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %22) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %21) #6
  store i64 %193, ptr %20, align 8, !tbaa !8
  %194 = load i64, ptr %20, align 8, !tbaa !8
  %195 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %194)
          to label %196 unwind label %204

196:                                              ; preds = %192
  %197 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %195, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %198 unwind label %204

198:                                              ; preds = %196
  call void @llvm.lifetime.end.p0(i64 8, ptr %20) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %18) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %16) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %12) #6
  store i32 0, ptr %8, align 4
  br label %199

199:                                              ; preds = %198, %100
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br label %200

200:                                              ; preds = %199, %46
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #6
  %201 = load i32, ptr %8, align 4
  switch i32 %201, label %233 [
    i32 0, label %202
    i32 1, label %202
  ]

202:                                              ; preds = %200, %200
  %203 = load i32, ptr %1, align 4
  ret i32 %203

204:                                              ; preds = %196, %192, %179
  %205 = landingpad { ptr, i32 }
          cleanup
  %206 = extractvalue { ptr, i32 } %205, 0
  store ptr %206, ptr %4, align 8
  %207 = extractvalue { ptr, i32 } %205, 1
  store i32 %207, ptr %5, align 4
  br label %222

208:                                              ; preds = %182, %180
  %209 = landingpad { ptr, i32 }
          cleanup
  %210 = extractvalue { ptr, i32 } %209, 0
  store ptr %210, ptr %4, align 8
  %211 = extractvalue { ptr, i32 } %209, 1
  store i32 %211, ptr %5, align 4
  br label %221

212:                                              ; preds = %185, %183
  %213 = landingpad { ptr, i32 }
          cleanup
  %214 = extractvalue { ptr, i32 } %213, 0
  store ptr %214, ptr %4, align 8
  %215 = extractvalue { ptr, i32 } %213, 1
  store i32 %215, ptr %5, align 4
  br label %220

216:                                              ; preds = %190
  %217 = landingpad { ptr, i32 }
          cleanup
  %218 = extractvalue { ptr, i32 } %217, 0
  store ptr %218, ptr %4, align 8
  %219 = extractvalue { ptr, i32 } %217, 1
  store i32 %219, ptr %5, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %23) #6
  br label %220

220:                                              ; preds = %216, %212
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %22) #6
  br label %221

221:                                              ; preds = %220, %208
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %21) #6
  br label %222

222:                                              ; preds = %221, %204
  call void @llvm.lifetime.end.p0(i64 8, ptr %20) #6
  br label %223

223:                                              ; preds = %222, %152
  call void @llvm.lifetime.end.p0(i64 1, ptr %18) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %16) #6
  br label %224

224:                                              ; preds = %223, %132
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #6
  br label %225

225:                                              ; preds = %224, %131
  call void @llvm.lifetime.end.p0(i64 32, ptr %12) #6
  br label %226

226:                                              ; preds = %225, %101, %80
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br label %227

227:                                              ; preds = %226, %51, %47
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #6
  br label %228

228:                                              ; preds = %227
  %229 = load ptr, ptr %4, align 8
  %230 = load i32, ptr %5, align 4
  %231 = insertvalue { ptr, i32 } poison, ptr %229, 0
  %232 = insertvalue { ptr, i32 } %231, i32 %230, 1
  resume { ptr, i32 } %232

233:                                              ; preds = %200
  unreachable
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #5

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4backEv(ptr noundef nonnull align 8 dereferenceable(32)) #3 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ESt16initializer_listIcERKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 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 #0 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) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_SA_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

attributes #0 = { 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 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 #5 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long long", !6, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"bool", !6, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"int", !6, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{i8 0, i8 2}
!17 = !{}
!18 = !{!19, !20, i64 0}
!19 = !{!"_ZTSSt16initializer_listIcE", !20, i64 0, !21, i64 8}
!20 = !{!"any pointer", !6, i64 0}
!21 = !{!"long", !6, i64 0}
!22 = !{!19, !21, i64 8}
!23 = distinct !{!23, !15}


; 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::__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.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.std::allocator" = type { i8 }

@_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 [1 x i8], align 1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #0 align 2

; 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 #0 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 noundef i64 @_Z4calcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #4 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca i64, align 8
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca [1 x i8], align 1
  %7 = alloca %"class.std::allocator", align 1
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca %"class.std::allocator", align 1
  %10 = alloca %"class.std::__cxx11::basic_string", align 8
  %11 = alloca %"class.std::__cxx11::basic_string", align 8
  %12 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #7
  %13 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %14 unwind label %32

14:                                               ; preds = %0
  %15 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %13, ptr noundef nonnull align 8 dereferenceable(8) %2)
          to label %16 unwind label %32

16:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #7
  %17 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  store ptr %17, ptr %3, align 8
  %18 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #7
  %19 = load i8, ptr %18, align 1, !tbaa !5
  %20 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4backEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  %21 = load i8, ptr %20, align 1, !tbaa !5
  %.not = icmp eq i8 %19, %21
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #7
  br i1 %.not, label %36, label %22

22:                                               ; preds = %16
  %23 = load i64, ptr %2, align 8, !tbaa !8
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %24 unwind label %32

24:                                               ; preds = %22
  %25 = invoke noundef i64 @_Z4calcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %4)
          to label %26 unwind label %34

26:                                               ; preds = %24
  %27 = mul nsw i64 %25, %23
  %28 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %27)
          to label %29 unwind label %34

29:                                               ; preds = %26
  %30 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %28, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %31 unwind label %34

31:                                               ; preds = %29
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  br label %93

32:                                               ; preds = %22, %14, %0
  %33 = landingpad { ptr, i32 }
          cleanup
  br label %107

34:                                               ; preds = %29, %26, %24
  %35 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  br label %107

36:                                               ; preds = %16
  %37 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  %38 = call i64 @llvm.smax.i64(i64 %37, i64 1)
  %smax = add nsw i64 %38, -1
  br label %39

39:                                               ; preds = %40, %36
  %indvars.iv = phi i64 [ %indvars.iv.next, %40 ], [ 0, %36 ]
  %exitcond.not = icmp eq i64 %indvars.iv, %smax
  br i1 %exitcond.not, label %.critedge, label %40

40:                                               ; preds = %39
  %41 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %42 = load i8, ptr %41, align 1, !tbaa !5
  %indvars.iv.next = add nuw i64 %indvars.iv, 1
  %43 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv.next)
  %44 = load i8, ptr %43, align 1, !tbaa !5
  %.not34 = icmp eq i8 %42, %44
  br i1 %.not34, label %39, label %53, !llvm.loop !10

.critedge:                                        ; preds = %39
  %45 = load i64, ptr %2, align 8, !tbaa !8
  %46 = mul nsw i64 %45, %37
  %47 = sdiv i64 %46, 2
  %48 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %47)
          to label %49 unwind label %51

49:                                               ; preds = %.critedge
  %50 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %48, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %93 unwind label %51

51:                                               ; preds = %49, %.critedge
  %52 = landingpad { ptr, i32 }
          cleanup
  br label %107

53:                                               ; preds = %40
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #7
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #7
  %54 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 0)
  %55 = load i8, ptr %54, align 1, !tbaa !5
  store i8 %55, ptr %6, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %7) #7
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #7
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ESt16initializer_listIcERKS3_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr nonnull %6, i64 1, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %56 unwind label %59

56:                                               ; preds = %53
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %8) #7
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %9) #7
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #7
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef nonnull @.str.2, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %57 unwind label %61

57:                                               ; preds = %56
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #7
  %58 = icmp sgt i64 %37, 1
  br i1 %58, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %74, %57
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %10, ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %75 unwind label %94

59:                                               ; preds = %53
  %60 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #7
  br label %106

61:                                               ; preds = %56
  %62 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #7
  br label %105

.lr.ph:                                           ; preds = %57, %74
  %indvars.iv52 = phi i64 [ %indvars.iv.next53, %74 ], [ 1, %57 ]
  %.01949 = phi i1 [ %spec.select, %74 ], [ true, %57 ]
  %63 = add nsw i64 %indvars.iv52, -1
  %64 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %63)
  %65 = load i8, ptr %64, align 1, !tbaa !5
  %66 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv52)
  %67 = load i8, ptr %66, align 1, !tbaa !5
  %.not40 = icmp eq i8 %65, %67
  %spec.select = and i1 %.not40, %.01949
  %68 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv52)
  %69 = load i8, ptr %68, align 1, !tbaa !5
  %70 = select i1 %spec.select, ptr %5, ptr %8
  %71 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %70, i8 noundef signext %69)
          to label %74 unwind label %72

72:                                               ; preds = %.lr.ph
  %73 = landingpad { ptr, i32 }
          cleanup
  br label %104

74:                                               ; preds = %.lr.ph
  %indvars.iv.next53 = add nuw nsw i64 %indvars.iv52, 1
  %exitcond54.not = icmp eq i64 %indvars.iv.next53, %37
  br i1 %exitcond54.not, label %._crit_edge, label %.lr.ph, !llvm.loop !12

75:                                               ; preds = %._crit_edge
  %76 = invoke noundef i64 @_Z4calcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %10)
          to label %77 unwind label %96

77:                                               ; preds = %75
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_SA_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %11, ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %78 unwind label %96

78:                                               ; preds = %77
  %79 = invoke noundef i64 @_Z4calcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %11)
          to label %80 unwind label %98

80:                                               ; preds = %78
  %81 = load i64, ptr %2, align 8, !tbaa !8
  %82 = add nsw i64 %81, -1
  %83 = mul nsw i64 %82, %79
  %84 = add nsw i64 %83, %76
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %12, ptr noundef nonnull align 8 dereferenceable(32) %8)
          to label %85 unwind label %98

85:                                               ; preds = %80
  %86 = invoke noundef i64 @_Z4calcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %12)
          to label %87 unwind label %100

87:                                               ; preds = %85
  %88 = add nsw i64 %84, %86
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #7
  %89 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %88)
          to label %90 unwind label %94

90:                                               ; preds = %87
  %91 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %89, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %92 unwind label %94

92:                                               ; preds = %90
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #7
  br label %93

93:                                               ; preds = %92, %49, %31
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #7
  ret i32 0

94:                                               ; preds = %90, %87, %._crit_edge
  %95 = landingpad { ptr, i32 }
          cleanup
  br label %104

96:                                               ; preds = %77, %75
  %97 = landingpad { ptr, i32 }
          cleanup
  br label %103

98:                                               ; preds = %80, %78
  %99 = landingpad { ptr, i32 }
          cleanup
  br label %102

100:                                              ; preds = %85
  %101 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #7
  br label %102

102:                                              ; preds = %100, %98
  %.pn = phi { ptr, i32 } [ %101, %100 ], [ %99, %98 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #7
  br label %103

103:                                              ; preds = %102, %96
  %.pn.pn = phi { ptr, i32 } [ %.pn, %102 ], [ %97, %96 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #7
  br label %104

104:                                              ; preds = %94, %103, %72
  %.pn41 = phi { ptr, i32 } [ %73, %72 ], [ %95, %94 ], [ %.pn.pn, %103 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #7
  br label %105

105:                                              ; preds = %104, %61
  %.pn41.pn = phi { ptr, i32 } [ %.pn41, %104 ], [ %62, %61 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  br label %106

106:                                              ; preds = %105, %59
  %.pn41.pn.pn = phi { ptr, i32 } [ %.pn41.pn, %105 ], [ %60, %59 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #7
  br label %107

107:                                              ; preds = %51, %106, %34, %32
  %.pn47 = phi { ptr, i32 } [ %35, %34 ], [ %33, %32 ], [ %52, %51 ], [ %.pn41.pn.pn, %106 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn47
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #5

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4backEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ESt16initializer_listIcERKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 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 #0 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 #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_SA_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.smax.i64(i64, i64) #6

attributes #0 = { 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 = { 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 #5 = { "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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long long", !6, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


; Effective O3 passes: AggressiveInstCombinePass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass