; LLVM IR from DionysiosB/CodeForces :: 0600-0699 (608B-HammingDistanceSum)

; 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] }

@_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 ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i64, align 8
  %14 = alloca i64, 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
  %15 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %16 unwind label %32

16:                                               ; preds = %0
  %17 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %18 unwind label %32

18:                                               ; preds = %16
  %19 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %20 = call ptr @llvm.stacksave.p0()
  store ptr %20, ptr %6, align 8
  %21 = alloca [2 x i64], i64 %19, align 16
  store i64 %19, ptr %7, align 8
  %22 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef 0)
          to label %23 unwind label %32

23:                                               ; preds = %18
  %24 = load i8, ptr %22, align 1, !tbaa !5
  %25 = sext i8 %24 to i32
  %26 = icmp eq i32 %25, 48
  br i1 %26, label %27, label %36

27:                                               ; preds = %23
  %28 = getelementptr inbounds [2 x i64], ptr %21, i64 0
  %29 = getelementptr inbounds [2 x i64], ptr %28, i64 0, i64 0
  store i64 1, ptr %29, align 16, !tbaa !8
  %30 = getelementptr inbounds [2 x i64], ptr %21, i64 0
  %31 = getelementptr inbounds [2 x i64], ptr %30, i64 0, i64 1
  store i64 0, ptr %31, align 8, !tbaa !8
  br label %41

32:                                               ; preds = %18, %16, %0
  %33 = landingpad { ptr, i32 }
          cleanup
  %34 = extractvalue { ptr, i32 } %33, 0
  store ptr %34, ptr %4, align 8
  %35 = extractvalue { ptr, i32 } %33, 1
  store i32 %35, ptr %5, align 4
  br label %156

36:                                               ; preds = %23
  %37 = getelementptr inbounds [2 x i64], ptr %21, i64 0
  %38 = getelementptr inbounds [2 x i64], ptr %37, i64 0, i64 0
  store i64 0, ptr %38, align 16, !tbaa !8
  %39 = getelementptr inbounds [2 x i64], ptr %21, i64 0
  %40 = getelementptr inbounds [2 x i64], ptr %39, i64 0, i64 1
  store i64 1, ptr %40, align 8, !tbaa !8
  br label %41

41:                                               ; preds = %36, %27
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  store i64 1, ptr %8, align 8, !tbaa !8
  br label %42

42:                                               ; preds = %80, %41
  %43 = load i64, ptr %8, align 8, !tbaa !8
  %44 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %45 = icmp ult i64 %43, %44
  br i1 %45, label %47, label %46

46:                                               ; preds = %42
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %87

47:                                               ; preds = %42
  %48 = load i64, ptr %8, align 8, !tbaa !8
  %49 = sub nsw i64 %48, 1
  %50 = getelementptr inbounds [2 x i64], ptr %21, i64 %49
  %51 = getelementptr inbounds [2 x i64], ptr %50, i64 0, i64 0
  %52 = load i64, ptr %51, align 16, !tbaa !8
  %53 = load i64, ptr %8, align 8, !tbaa !8
  %54 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %53)
          to label %55 unwind label %83

55:                                               ; preds = %47
  %56 = load i8, ptr %54, align 1, !tbaa !5
  %57 = sext i8 %56 to i32
  %58 = icmp eq i32 %57, 48
  %59 = zext i1 %58 to i64
  %60 = add nsw i64 %52, %59
  %61 = load i64, ptr %8, align 8, !tbaa !8
  %62 = getelementptr inbounds [2 x i64], ptr %21, i64 %61
  %63 = getelementptr inbounds [2 x i64], ptr %62, i64 0, i64 0
  store i64 %60, ptr %63, align 16, !tbaa !8
  %64 = load i64, ptr %8, align 8, !tbaa !8
  %65 = sub nsw i64 %64, 1
  %66 = getelementptr inbounds [2 x i64], ptr %21, i64 %65
  %67 = getelementptr inbounds [2 x i64], ptr %66, i64 0, i64 1
  %68 = load i64, ptr %67, align 8, !tbaa !8
  %69 = load i64, ptr %8, align 8, !tbaa !8
  %70 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %69)
          to label %71 unwind label %83

71:                                               ; preds = %55
  %72 = load i8, ptr %70, align 1, !tbaa !5
  %73 = sext i8 %72 to i32
  %74 = icmp eq i32 %73, 49
  %75 = zext i1 %74 to i64
  %76 = add nsw i64 %68, %75
  %77 = load i64, ptr %8, align 8, !tbaa !8
  %78 = getelementptr inbounds [2 x i64], ptr %21, i64 %77
  %79 = getelementptr inbounds [2 x i64], ptr %78, i64 0, i64 1
  store i64 %76, ptr %79, align 8, !tbaa !8
  br label %80

80:                                               ; preds = %71
  %81 = load i64, ptr %8, align 8, !tbaa !8
  %82 = add nsw i64 %81, 1
  store i64 %82, ptr %8, align 8, !tbaa !8
  br label %42, !llvm.loop !10

83:                                               ; preds = %55, %47
  %84 = landingpad { ptr, i32 }
          cleanup
  %85 = extractvalue { ptr, i32 } %84, 0
  store ptr %85, ptr %4, align 8
  %86 = extractvalue { ptr, i32 } %84, 1
  store i32 %86, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %156

87:                                               ; preds = %46
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  %88 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %89 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %90 = sub i64 %88, %89
  %91 = getelementptr inbounds [2 x i64], ptr %21, i64 %90
  %92 = 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 %93 unwind label %105

93:                                               ; preds = %87
  %94 = load i8, ptr %92, align 1, !tbaa !5
  %95 = sext i8 %94 to i32
  %96 = sub nsw i32 49, %95
  %97 = sext i32 %96 to i64
  %98 = getelementptr inbounds [2 x i64], ptr %91, i64 0, i64 %97
  %99 = load i64, ptr %98, align 8, !tbaa !8
  store i64 %99, ptr %9, align 8, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  store i64 1, ptr %10, align 8, !tbaa !8
  br label %100

100:                                              ; preds = %140, %93
  %101 = load i64, ptr %10, align 8, !tbaa !8
  %102 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %103 = icmp ult i64 %101, %102
  br i1 %103, label %109, label %104

104:                                              ; preds = %100
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  br label %147

105:                                              ; preds = %150, %147, %87
  %106 = landingpad { ptr, i32 }
          cleanup
  %107 = extractvalue { ptr, i32 } %106, 0
  store ptr %107, ptr %4, align 8
  %108 = extractvalue { ptr, i32 } %106, 1
  store i32 %108, ptr %5, align 4
  br label %155

109:                                              ; preds = %100
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #6
  %110 = load i64, ptr %10, align 8, !tbaa !8
  %111 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %110)
          to label %112 unwind label %143

112:                                              ; preds = %109
  %113 = load i8, ptr %111, align 1, !tbaa !5
  %114 = sext i8 %113 to i32
  %115 = sub nsw i32 %114, 48
  store i32 %115, ptr %11, align 4, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #6
  %116 = load i32, ptr %11, align 4, !tbaa !12
  %117 = sub nsw i32 1, %116
  store i32 %117, ptr %12, align 4, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #6
  %118 = load i64, ptr %10, align 8, !tbaa !8
  %119 = sub nsw i64 %118, 1
  store i64 %119, ptr %13, align 8, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #6
  %120 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %121 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %122 = sub i64 %120, %121
  %123 = load i64, ptr %10, align 8, !tbaa !8
  %124 = add i64 %122, %123
  store i64 %124, ptr %14, align 8, !tbaa !8
  %125 = load i64, ptr %14, align 8, !tbaa !8
  %126 = getelementptr inbounds [2 x i64], ptr %21, i64 %125
  %127 = load i32, ptr %12, align 4, !tbaa !12
  %128 = sext i32 %127 to i64
  %129 = getelementptr inbounds [2 x i64], ptr %126, i64 0, i64 %128
  %130 = load i64, ptr %129, align 8, !tbaa !8
  %131 = load i64, ptr %13, align 8, !tbaa !8
  %132 = getelementptr inbounds [2 x i64], ptr %21, i64 %131
  %133 = load i32, ptr %12, align 4, !tbaa !12
  %134 = sext i32 %133 to i64
  %135 = getelementptr inbounds [2 x i64], ptr %132, i64 0, i64 %134
  %136 = load i64, ptr %135, align 8, !tbaa !8
  %137 = sub nsw i64 %130, %136
  %138 = load i64, ptr %9, align 8, !tbaa !8
  %139 = add nsw i64 %138, %137
  store i64 %139, ptr %9, align 8, !tbaa !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 4, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %140

140:                                              ; preds = %112
  %141 = load i64, ptr %10, align 8, !tbaa !8
  %142 = add nsw i64 %141, 1
  store i64 %142, ptr %10, align 8, !tbaa !8
  br label %100, !llvm.loop !14

143:                                              ; preds = %109
  %144 = landingpad { ptr, i32 }
          cleanup
  %145 = extractvalue { ptr, i32 } %144, 0
  store ptr %145, ptr %4, align 8
  %146 = extractvalue { ptr, i32 } %144, 1
  store i32 %146, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  br label %155

147:                                              ; preds = %104
  %148 = load i64, ptr %9, align 8, !tbaa !8
  %149 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEl(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %148)
          to label %150 unwind label %105

150:                                              ; preds = %147
  %151 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %149, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %152 unwind label %105

152:                                              ; preds = %150
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  %153 = load ptr, ptr %6, align 8
  call void @llvm.stackrestore.p0(ptr %153)
  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
  %154 = load i32, ptr %1, align 4
  ret i32 %154

155:                                              ; preds = %143, %105
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br label %156

156:                                              ; preds = %155, %83, %32
  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 %157

157:                                              ; preds = %156
  %158 = load ptr, ptr %4, align 8
  %159 = load i32, ptr %5, align 4
  %160 = insertvalue { ptr, i32 } poison, ptr %158, 0
  %161 = insertvalue { ptr, i32 } %160, i32 %159, 1
  resume { ptr, i32 } %161
}

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

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #3

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #5 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) #5 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

; 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 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nocallback nofree nosync nounwind willreturn }
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 = !{!9, !9, i64 0}
!9 = !{!"long", !6, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = !{!13, !13, i64 0}
!13 = !{!"int", !6, i64 0}
!14 = distinct !{!14, !11}


; 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] }

@_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
  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
  %3 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %4 unwind label %16

4:                                                ; preds = %0
  %5 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %6 unwind label %16

6:                                                ; preds = %4
  %7 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %8 = call ptr @llvm.stacksave.p0()
  %9 = alloca [2 x i64], i64 %7, align 16
  %10 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 0)
  %11 = load i8, ptr %10, align 1, !tbaa !5
  %12 = icmp eq i8 %11, 48
  %spec.select = zext i1 %12 to i64
  %not. = xor i1 %12, true
  %spec.select35 = zext i1 %not. to i64
  store i64 %spec.select, ptr %9, align 16
  %13 = getelementptr inbounds i8, ptr %9, i64 8
  store i64 %spec.select35, ptr %13, align 8
  %14 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %15 = icmp ugt i64 %14, 1
  br i1 %15, label %.lr.ph, label %._crit_edge

16:                                               ; preds = %4, %0
  %17 = landingpad { ptr, i32 }
          cleanup
  br label %67

._crit_edge:                                      ; preds = %.lr.ph, %6
  %18 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %19 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %20 = sub i64 %18, %19
  %21 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 0)
  %22 = load i8, ptr %21, align 1, !tbaa !5
  %23 = sext i8 %22 to i64
  %24 = sub nsw i64 49, %23
  %25 = getelementptr inbounds [2 x i64], ptr %9, i64 %20, i64 %24
  %26 = load i64, ptr %25, align 8, !tbaa !8
  %invariant.gep = getelementptr i8, ptr %9, i64 -16
  %27 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %28 = icmp ugt i64 %27, 1
  br i1 %28, label %.lr.ph32, label %._crit_edge33

.lr.ph:                                           ; preds = %6, %.lr.ph
  %.02428 = phi i64 [ %41, %.lr.ph ], [ 1, %6 ]
  %29 = getelementptr [2 x i64], ptr %9, i64 %.02428
  %30 = getelementptr i8, ptr %29, i64 -16
  %31 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %.02428)
  %32 = load i8, ptr %31, align 1, !tbaa !5
  %33 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %.02428)
  %34 = load i8, ptr %33, align 1, !tbaa !5
  %35 = load <2 x i64>, ptr %30, align 16, !tbaa !8
  %36 = insertelement <2 x i8> poison, i8 %32, i64 0
  %37 = insertelement <2 x i8> %36, i8 %34, i64 1
  %38 = icmp eq <2 x i8> %37, <i8 48, i8 49>
  %39 = zext <2 x i1> %38 to <2 x i64>
  %40 = add nsw <2 x i64> %35, %39
  store <2 x i64> %40, ptr %29, align 16, !tbaa !8
  %41 = add nuw nsw i64 %.02428, 1
  %42 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %43 = icmp ult i64 %41, %42
  br i1 %43, label %.lr.ph, label %._crit_edge, !llvm.loop !10

._crit_edge33:                                    ; preds = %.lr.ph32, %._crit_edge
  %.026.lcssa = phi i64 [ %26, %._crit_edge ], [ %60, %.lr.ph32 ]
  %44 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEl(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %.026.lcssa)
          to label %64 unwind label %45

45:                                               ; preds = %64, %._crit_edge33
  %46 = landingpad { ptr, i32 }
          cleanup
  br label %67

.lr.ph32:                                         ; preds = %._crit_edge, %.lr.ph32
  %.02530 = phi i64 [ %61, %.lr.ph32 ], [ 1, %._crit_edge ]
  %.02629 = phi i64 [ %60, %.lr.ph32 ], [ %26, %._crit_edge ]
  %47 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %.02530)
  %48 = load i8, ptr %47, align 1, !tbaa !5
  %49 = sext i8 %48 to i64
  %50 = sub nsw i64 49, %49
  %51 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %52 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %53 = sub i64 %51, %52
  %54 = getelementptr [2 x i64], ptr %9, i64 %53
  %55 = getelementptr nusw [2 x i64], ptr %54, i64 %.02530, i64 %50
  %56 = load i64, ptr %55, align 8, !tbaa !8
  %57 = getelementptr nusw [2 x i64], ptr %invariant.gep, i64 %.02530, i64 %50
  %58 = load i64, ptr %57, align 8, !tbaa !8
  %59 = add i64 %56, %.02629
  %60 = sub i64 %59, %58
  %61 = add nuw nsw i64 %.02530, 1
  %62 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %63 = icmp ult i64 %61, %62
  br i1 %63, label %.lr.ph32, label %._crit_edge33, !llvm.loop !12

64:                                               ; preds = %._crit_edge33
  %65 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %44, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %66 unwind label %45

66:                                               ; preds = %64
  call void @llvm.stackrestore.p0(ptr %8)
  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

67:                                               ; preds = %45, %16
  %.pn = phi { ptr, i32 } [ %46, %45 ], [ %17, %16 ]
  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
}

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

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #5 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 #5 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

; 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 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress nocallback nofree nosync nounwind willreturn }
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 = !{!9, !9, i64 0}
!9 = !{!"long", !6, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


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