; LLVM IR from Izaron/ACM-ICPC :: Timus Online Judge/Volume 11/2020. Traffic Jam in Flower Town (main)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.__gnu_cxx::__normal_iterator.0" = type { ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca i32, align 4
  %11 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %13 = alloca %"class.__gnu_cxx::__normal_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.0", align 8
  %17 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %18 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %19 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %20 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %21 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %22 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %23 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %24 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %25 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %26 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %27 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %28 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %29 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %30 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %31 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %32 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %33 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %34 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %35 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %36 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %37 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %38 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %39 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %40 = alloca %"class.__gnu_cxx::__normal_iterator", 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 32, ptr %3) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %41 = 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 %42 unwind label %108

42:                                               ; preds = %0
  %43 = 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) %41, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %44 unwind label %108

44:                                               ; preds = %42
  %45 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %46 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %6, i32 0, i32 0
  store ptr %45, ptr %46, align 8
  %47 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %48 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  store ptr %47, ptr %48, align 8
  %49 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %6, i32 0, i32 0
  %50 = load ptr, ptr %49, align 8
  %51 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  %52 = load ptr, ptr %51, align 8
  invoke void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEEvT_SA_(ptr %50, ptr %52)
          to label %53 unwind label %108

53:                                               ; preds = %44
  %54 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %55 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %54, ptr %55, align 8
  %56 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %57 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  store ptr %56, ptr %57, align 8
  %58 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  %59 = load ptr, ptr %58, align 8
  %60 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  %61 = load ptr, ptr %60, align 8
  invoke void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEEvT_SA_(ptr %59, ptr %61)
          to label %62 unwind label %108

62:                                               ; preds = %53
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #6
  store i32 0, ptr %10, align 4, !tbaa !5
  br label %63

63:                                               ; preds = %223, %62
  %64 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %65 = icmp ne i64 %64, 0
  br i1 %65, label %69, label %66

66:                                               ; preds = %63
  %67 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %68 = icmp ne i64 %67, 0
  br label %69

69:                                               ; preds = %66, %63
  %70 = phi i1 [ true, %63 ], [ %68, %66 ]
  br i1 %70, label %71, label %224

71:                                               ; preds = %69
  %72 = load i32, ptr %10, align 4, !tbaa !5
  %73 = add nsw i32 %72, 1
  store i32 %73, ptr %10, align 4, !tbaa !5
  %74 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %75 = icmp ugt i64 %74, 0
  br i1 %75, label %76, label %206

76:                                               ; preds = %71
  %77 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %78 = icmp ugt i64 %77, 0
  br i1 %78, label %79, label %188

79:                                               ; preds = %76
  %80 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %81 = sub i64 %80, 1
  %82 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %81)
          to label %83 unwind label %112

83:                                               ; preds = %79
  %84 = load i8, ptr %82, align 1, !tbaa !9
  %85 = sext i8 %84 to i32
  %86 = icmp eq i32 %85, 76
  br i1 %86, label %87, label %120

87:                                               ; preds = %83
  %88 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %89 = sub i64 %88, 1
  %90 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %89)
          to label %91 unwind label %112

91:                                               ; preds = %87
  %92 = load i8, ptr %90, align 1, !tbaa !9
  %93 = sext i8 %92 to i32
  %94 = icmp ne i32 %93, 76
  br i1 %94, label %95, label %120

95:                                               ; preds = %91
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #6
  %96 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %97 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %14, i32 0, i32 0
  store ptr %96, ptr %97, align 8
  %98 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %99 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %14, i64 noundef %98) #6
  %100 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %13, i32 0, i32 0
  store ptr %99, ptr %100, align 8
  %101 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8) %13, i64 noundef 1) #6
  %102 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  store ptr %101, ptr %102, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(8) %12) #6
  %103 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %11, i32 0, i32 0
  %104 = load ptr, ptr %103, align 8
  %105 = invoke ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr %104)
          to label %106 unwind label %116

106:                                              ; preds = %95
  %107 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %15, i32 0, i32 0
  store ptr %105, ptr %107, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  br label %187

108:                                              ; preds = %53, %44, %42, %0
  %109 = landingpad { ptr, i32 }
          cleanup
  %110 = extractvalue { ptr, i32 } %109, 0
  store ptr %110, ptr %4, align 8
  %111 = extractvalue { ptr, i32 } %109, 1
  store i32 %111, ptr %5, align 4
  br label %230

112:                                              ; preds = %224, %128, %120, %87, %79
  %113 = landingpad { ptr, i32 }
          cleanup
  %114 = extractvalue { ptr, i32 } %113, 0
  store ptr %114, ptr %4, align 8
  %115 = extractvalue { ptr, i32 } %113, 1
  store i32 %115, ptr %5, align 4
  br label %229

116:                                              ; preds = %95
  %117 = landingpad { ptr, i32 }
          cleanup
  %118 = extractvalue { ptr, i32 } %117, 0
  store ptr %118, ptr %4, align 8
  %119 = extractvalue { ptr, i32 } %117, 1
  store i32 %119, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  br label %229

120:                                              ; preds = %91, %83
  %121 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %122 = sub i64 %121, 1
  %123 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %122)
          to label %124 unwind label %112

124:                                              ; preds = %120
  %125 = load i8, ptr %123, align 1, !tbaa !9
  %126 = sext i8 %125 to i32
  %127 = icmp ne i32 %126, 76
  br i1 %127, label %128, label %153

128:                                              ; preds = %124
  %129 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %130 = sub i64 %129, 1
  %131 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %130)
          to label %132 unwind label %112

132:                                              ; preds = %128
  %133 = load i8, ptr %131, align 1, !tbaa !9
  %134 = sext i8 %133 to i32
  %135 = icmp eq i32 %134, 76
  br i1 %135, label %136, label %153

136:                                              ; preds = %132
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %18) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %19) #6
  %137 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %138 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %19, i32 0, i32 0
  store ptr %137, ptr %138, align 8
  %139 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %140 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %19, i64 noundef %139) #6
  %141 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %18, i32 0, i32 0
  store ptr %140, ptr %141, align 8
  %142 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8) %18, i64 noundef 1) #6
  %143 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %17, i32 0, i32 0
  store ptr %142, ptr %143, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8) %16, ptr noundef nonnull align 8 dereferenceable(8) %17) #6
  %144 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %16, i32 0, i32 0
  %145 = load ptr, ptr %144, align 8
  %146 = invoke ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr %145)
          to label %147 unwind label %149

147:                                              ; preds = %136
  %148 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %20, i32 0, i32 0
  store ptr %146, ptr %148, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #6
  br label %186

149:                                              ; preds = %136
  %150 = landingpad { ptr, i32 }
          cleanup
  %151 = extractvalue { ptr, i32 } %150, 0
  store ptr %151, ptr %4, align 8
  %152 = extractvalue { ptr, i32 } %150, 1
  store i32 %152, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #6
  br label %229

153:                                              ; preds = %132, %124
  call void @llvm.lifetime.start.p0(i64 8, ptr %22) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %23) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %24) #6
  %154 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %155 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %24, i32 0, i32 0
  store ptr %154, ptr %155, align 8
  %156 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %157 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %24, i64 noundef %156) #6
  %158 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %23, i32 0, i32 0
  store ptr %157, ptr %158, align 8
  %159 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8) %23, i64 noundef 1) #6
  %160 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %22, i32 0, i32 0
  store ptr %159, ptr %160, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8) %21, ptr noundef nonnull align 8 dereferenceable(8) %22) #6
  %161 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %21, i32 0, i32 0
  %162 = load ptr, ptr %161, align 8
  %163 = invoke ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr %162)
          to label %164 unwind label %178

164:                                              ; preds = %153
  %165 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %25, i32 0, i32 0
  store ptr %163, ptr %165, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %24) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %23) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %22) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %27) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %28) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %29) #6
  %166 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %167 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %29, i32 0, i32 0
  store ptr %166, ptr %167, align 8
  %168 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %169 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %29, i64 noundef %168) #6
  %170 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %28, i32 0, i32 0
  store ptr %169, ptr %170, align 8
  %171 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8) %28, i64 noundef 1) #6
  %172 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %27, i32 0, i32 0
  store ptr %171, ptr %172, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8) %26, ptr noundef nonnull align 8 dereferenceable(8) %27) #6
  %173 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %26, i32 0, i32 0
  %174 = load ptr, ptr %173, align 8
  %175 = invoke ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr %174)
          to label %176 unwind label %182

176:                                              ; preds = %164
  %177 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %30, i32 0, i32 0
  store ptr %175, ptr %177, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %29) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %28) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %27) #6
  br label %186

178:                                              ; preds = %153
  %179 = landingpad { ptr, i32 }
          cleanup
  %180 = extractvalue { ptr, i32 } %179, 0
  store ptr %180, ptr %4, align 8
  %181 = extractvalue { ptr, i32 } %179, 1
  store i32 %181, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %24) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %23) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %22) #6
  br label %229

182:                                              ; preds = %164
  %183 = landingpad { ptr, i32 }
          cleanup
  %184 = extractvalue { ptr, i32 } %183, 0
  store ptr %184, ptr %4, align 8
  %185 = extractvalue { ptr, i32 } %183, 1
  store i32 %185, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %29) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %28) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %27) #6
  br label %229

186:                                              ; preds = %176, %147
  br label %187

187:                                              ; preds = %186, %106
  br label %205

188:                                              ; preds = %76
  call void @llvm.lifetime.start.p0(i64 8, ptr %32) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %33) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %34) #6
  %189 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %190 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %34, i32 0, i32 0
  store ptr %189, ptr %190, align 8
  %191 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %192 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %34, i64 noundef %191) #6
  %193 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %33, i32 0, i32 0
  store ptr %192, ptr %193, align 8
  %194 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8) %33, i64 noundef 1) #6
  %195 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %32, i32 0, i32 0
  store ptr %194, ptr %195, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8) %31, ptr noundef nonnull align 8 dereferenceable(8) %32) #6
  %196 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %31, i32 0, i32 0
  %197 = load ptr, ptr %196, align 8
  %198 = invoke ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr %197)
          to label %199 unwind label %201

199:                                              ; preds = %188
  %200 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %35, i32 0, i32 0
  store ptr %198, ptr %200, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %34) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %33) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %32) #6
  br label %205

201:                                              ; preds = %188
  %202 = landingpad { ptr, i32 }
          cleanup
  %203 = extractvalue { ptr, i32 } %202, 0
  store ptr %203, ptr %4, align 8
  %204 = extractvalue { ptr, i32 } %202, 1
  store i32 %204, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %34) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %33) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %32) #6
  br label %229

205:                                              ; preds = %199, %187
  br label %223

206:                                              ; preds = %71
  call void @llvm.lifetime.start.p0(i64 8, ptr %37) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %38) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %39) #6
  %207 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %208 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %39, i32 0, i32 0
  store ptr %207, ptr %208, align 8
  %209 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %210 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %39, i64 noundef %209) #6
  %211 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %38, i32 0, i32 0
  store ptr %210, ptr %211, align 8
  %212 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8) %38, i64 noundef 1) #6
  %213 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %37, i32 0, i32 0
  store ptr %212, ptr %213, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8) %36, ptr noundef nonnull align 8 dereferenceable(8) %37) #6
  %214 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %36, i32 0, i32 0
  %215 = load ptr, ptr %214, align 8
  %216 = invoke ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr %215)
          to label %217 unwind label %219

217:                                              ; preds = %206
  %218 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %40, i32 0, i32 0
  store ptr %216, ptr %218, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %39) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %38) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %37) #6
  br label %223

219:                                              ; preds = %206
  %220 = landingpad { ptr, i32 }
          cleanup
  %221 = extractvalue { ptr, i32 } %220, 0
  store ptr %221, ptr %4, align 8
  %222 = extractvalue { ptr, i32 } %220, 1
  store i32 %222, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %39) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %38) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %37) #6
  br label %229

223:                                              ; preds = %217, %205
  br label %63, !llvm.loop !10

224:                                              ; preds = %69
  %225 = load i32, ptr %10, align 4, !tbaa !5
  %226 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %225)
          to label %227 unwind label %112

227:                                              ; preds = %224
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.end.p0(i64 32, 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
  %228 = load i32, ptr %1, align 4
  ret i32 %228

229:                                              ; preds = %219, %201, %182, %178, %149, %116, %112
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  br label %230

230:                                              ; preds = %229, %108
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.end.p0(i64 32, 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 %231

231:                                              ; preds = %230
  %232 = load ptr, ptr %4, align 8
  %233 = load i32, ptr %5, align 4
  %234 = insertvalue { ptr, i32 } poison, ptr %232, 0
  %235 = insertvalue { ptr, i32 } %234, i32 %233, 1
  resume { ptr, i32 } %235
}

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

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

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)) #3

declare i32 @__gxx_personality_v0(...)

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEEvT_SA_(ptr, ptr) #4

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

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

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

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

; Function Attrs: mustprogress uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32), ptr) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #2 align 2

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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3

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

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { nounwind }

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

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


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

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.__gnu_cxx::__normal_iterator.0" = type { ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %13 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %14 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %15 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %16 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %17 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %18 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %19 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %20 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %21 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %22 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %23 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %24 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %25 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %26 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %27 = 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 %28 unwind label %62

28:                                               ; preds = %0
  %29 = 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) %27, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %30 unwind label %62

30:                                               ; preds = %28
  %31 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %32 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  invoke void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEEvT_SA_(ptr %31, ptr %32)
          to label %33 unwind label %62

33:                                               ; preds = %30
  %34 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %35 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  invoke void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEEvT_SA_(ptr %34, ptr %35)
          to label %.preheader unwind label %62

.preheader:                                       ; preds = %33, %.preheader.backedge
  %.015 = phi i32 [ %39, %.preheader.backedge ], [ 0, %33 ]
  %36 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %.not = icmp eq i64 %36, 0
  br i1 %.not, label %37, label %.critedge

37:                                               ; preds = %.preheader
  %38 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %.not16 = icmp eq i64 %38, 0
  br i1 %.not16, label %128, label %.critedge

.critedge:                                        ; preds = %.preheader, %37
  %39 = add nuw nsw i32 %.015, 1
  %40 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %.not17 = icmp eq i64 %40, 0
  br i1 %.not17, label %118, label %41

41:                                               ; preds = %.critedge
  %42 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %.not18 = icmp eq i64 %42, 0
  br i1 %.not18, label %108, label %43

43:                                               ; preds = %41
  %44 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %45 = add i64 %44, -1
  %46 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %45)
  %47 = load i8, ptr %46, align 1, !tbaa !5
  %48 = icmp eq i8 %47, 76
  br i1 %48, label %49, label %68

49:                                               ; preds = %43
  %50 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %51 = add i64 %50, -1
  %52 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %51)
  %53 = load i8, ptr %52, align 1, !tbaa !5
  %.not19 = icmp eq i8 %53, 76
  br i1 %.not19, label %68, label %54

54:                                               ; preds = %49
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #6
  %55 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  store ptr %55, ptr %6, align 8
  %56 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %57 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %6, i64 noundef %56) #6
  store ptr %57, ptr %5, align 8
  %58 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8) %5, i64 noundef 1) #6
  store ptr %58, ptr %4, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #6
  %59 = load ptr, ptr %3, align 8
  %60 = invoke ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr %59)
          to label %61 unwind label %66

61:                                               ; preds = %54
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  br label %.preheader.backedge

62:                                               ; preds = %33, %30, %28, %0
  %63 = landingpad { ptr, i32 }
          cleanup
  br label %131

64:                                               ; preds = %128
  %65 = landingpad { ptr, i32 }
          cleanup
  br label %131

66:                                               ; preds = %54
  %67 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  br label %131

68:                                               ; preds = %49, %43
  %69 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %70 = add i64 %69, -1
  %71 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %70)
  %72 = load i8, ptr %71, align 1, !tbaa !5
  %.not20 = icmp eq i8 %72, 76
  br i1 %.not20, label %89, label %73

73:                                               ; preds = %68
  %74 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %75 = add i64 %74, -1
  %76 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %75)
  %77 = load i8, ptr %76, align 1, !tbaa !5
  %78 = icmp eq i8 %77, 76
  br i1 %78, label %79, label %89

79:                                               ; preds = %73
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #6
  %80 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  store ptr %80, ptr %10, align 8
  %81 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %82 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %10, i64 noundef %81) #6
  store ptr %82, ptr %9, align 8
  %83 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8) %9, i64 noundef 1) #6
  store ptr %83, ptr %8, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #6
  %84 = load ptr, ptr %7, align 8
  %85 = invoke ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr %84)
          to label %86 unwind label %87

86:                                               ; preds = %79
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #6
  br label %.preheader.backedge

87:                                               ; preds = %79
  %88 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #6
  br label %131

89:                                               ; preds = %73, %68
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %12) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %13) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %14) #6
  %90 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  store ptr %90, ptr %14, align 8
  %91 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %92 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %14, i64 noundef %91) #6
  store ptr %92, ptr %13, align 8
  %93 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8) %13, i64 noundef 1) #6
  store ptr %93, ptr %12, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(8) %12) #6
  %94 = load ptr, ptr %11, align 8
  %95 = invoke ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr %94)
          to label %96 unwind label %104

96:                                               ; preds = %89
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %14) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %13) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %12) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %16) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %17) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %18) #6
  %97 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  store ptr %97, ptr %18, align 8
  %98 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %99 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %18, i64 noundef %98) #6
  store ptr %99, ptr %17, align 8
  %100 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8) %17, i64 noundef 1) #6
  store ptr %100, ptr %16, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8) %15, ptr noundef nonnull align 8 dereferenceable(8) %16) #6
  %101 = load ptr, ptr %15, align 8
  %102 = invoke ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr %101)
          to label %103 unwind label %106

103:                                              ; preds = %96
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %18) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %17) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %16) #6
  br label %.preheader.backedge

104:                                              ; preds = %89
  %105 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %14) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %13) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %12) #6
  br label %131

106:                                              ; preds = %96
  %107 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %18) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %17) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %16) #6
  br label %131

108:                                              ; preds = %41
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %20) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %21) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %22) #6
  %109 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  store ptr %109, ptr %22, align 8
  %110 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %111 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %22, i64 noundef %110) #6
  store ptr %111, ptr %21, align 8
  %112 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8) %21, i64 noundef 1) #6
  store ptr %112, ptr %20, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8) %19, ptr noundef nonnull align 8 dereferenceable(8) %20) #6
  %113 = load ptr, ptr %19, align 8
  %114 = invoke ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr %113)
          to label %115 unwind label %116

115:                                              ; preds = %108
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %22) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %21) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %20) #6
  br label %.preheader.backedge

.preheader.backedge:                              ; preds = %115, %86, %103, %61, %125
  br label %.preheader, !llvm.loop !8

116:                                              ; preds = %108
  %117 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %22) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %21) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %20) #6
  br label %131

118:                                              ; preds = %.critedge
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %24) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %25) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %26) #6
  %119 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  store ptr %119, ptr %26, align 8
  %120 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %121 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %26, i64 noundef %120) #6
  store ptr %121, ptr %25, align 8
  %122 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8) %25, i64 noundef 1) #6
  store ptr %122, ptr %24, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8) %23, ptr noundef nonnull align 8 dereferenceable(8) %24) #6
  %123 = load ptr, ptr %23, align 8
  %124 = invoke ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr %123)
          to label %125 unwind label %126

125:                                              ; preds = %118
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %26) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %25) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %24) #6
  br label %.preheader.backedge

126:                                              ; preds = %118
  %127 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %26) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %25) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %24) #6
  br label %131

128:                                              ; preds = %37
  %129 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.015)
          to label %130 unwind label %64

130:                                              ; preds = %128
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  ret i32 0

131:                                              ; preds = %64, %66, %87, %104, %106, %116, %126, %62
  %.pn.pn = phi { ptr, i32 } [ %63, %62 ], [ %67, %66 ], [ %88, %87 ], [ %107, %106 ], [ %105, %104 ], [ %117, %116 ], [ %127, %126 ], [ %65, %64 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn.pn
}

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

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

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 #3

declare i32 @__gxx_personality_v0(...)

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEEvT_SA_(ptr, ptr) local_unnamed_addr #4

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

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

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

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

; Function Attrs: mustprogress uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5eraseEN9__gnu_cxx17__normal_iteratorIPKcS4_EE(ptr noundef nonnull align 8 dereferenceable(32), ptr) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEplEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEmiEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IPcvEERKNS0_IT_S8_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #2 align 2

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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #3

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

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { nounwind }

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

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


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass