; LLVM IR from eyangch/competitive-programming :: Codeforces/12 (a)

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

%"class.std::basic_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
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca [3 x %"class.std::__cxx11::basic_string"], align 16
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 96, ptr %2) #6
  %8 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr %2, i32 0, i32 0
  %9 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %8, i64 3
  br label %10

10:                                               ; preds = %10, %0
  %11 = phi ptr [ %8, %0 ], [ %12, %10 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #6
  %12 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %11, i64 1
  %13 = icmp eq ptr %12, %9
  br i1 %13, label %14, label %10

14:                                               ; preds = %10
  %15 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr %2, i64 0, i64 0
  %16 = 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) %15)
          to label %17 unwind label %28

17:                                               ; preds = %14
  %18 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr %2, i64 0, i64 1
  %19 = 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) %16, ptr noundef nonnull align 8 dereferenceable(32) %18)
          to label %20 unwind label %28

20:                                               ; preds = %17
  %21 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr %2, i64 0, i64 2
  %22 = 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) %19, ptr noundef nonnull align 8 dereferenceable(32) %21)
          to label %23 unwind label %28

23:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #6
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %24

24:                                               ; preds = %59, %23
  %25 = load i32, ptr %5, align 4, !tbaa !5
  %26 = icmp slt i32 %25, 3
  br i1 %26, label %32, label %27

27:                                               ; preds = %24
  store i32 2, ptr %6, align 4
  br label %62

28:                                               ; preds = %103, %101, %20, %17, %14
  %29 = landingpad { ptr, i32 }
          cleanup
  %30 = extractvalue { ptr, i32 } %29, 0
  store ptr %30, ptr %3, align 8
  %31 = extractvalue { ptr, i32 } %29, 1
  store i32 %31, ptr %4, align 4
  br label %115

32:                                               ; preds = %24
  %33 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr %2, i64 0, i64 0
  %34 = load i32, ptr %5, align 4, !tbaa !5
  %35 = sext i32 %34 to i64
  %36 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %33, i64 noundef %35)
          to label %37 unwind label %54

37:                                               ; preds = %32
  %38 = load i8, ptr %36, align 1, !tbaa !9
  %39 = sext i8 %38 to i32
  %40 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr %2, i64 0, i64 2
  %41 = load i32, ptr %5, align 4, !tbaa !5
  %42 = sub nsw i32 2, %41
  %43 = sext i32 %42 to i64
  %44 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %40, i64 noundef %43)
          to label %45 unwind label %54

45:                                               ; preds = %37
  %46 = load i8, ptr %44, align 1, !tbaa !9
  %47 = sext i8 %46 to i32
  %48 = icmp ne i32 %39, %47
  br i1 %48, label %49, label %58

49:                                               ; preds = %45
  %50 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
          to label %51 unwind label %54

51:                                               ; preds = %49
  %52 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %50, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %53 unwind label %54

53:                                               ; preds = %51
  store i32 0, ptr %1, align 4
  store i32 1, ptr %6, align 4
  br label %62

54:                                               ; preds = %51, %49, %37, %32
  %55 = landingpad { ptr, i32 }
          cleanup
  %56 = extractvalue { ptr, i32 } %55, 0
  store ptr %56, ptr %3, align 8
  %57 = extractvalue { ptr, i32 } %55, 1
  store i32 %57, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  br label %115

58:                                               ; preds = %45
  br label %59

59:                                               ; preds = %58
  %60 = load i32, ptr %5, align 4, !tbaa !5
  %61 = add nsw i32 %60, 1
  store i32 %61, ptr %5, align 4, !tbaa !5
  br label %24, !llvm.loop !10

62:                                               ; preds = %53, %27
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  %63 = load i32, ptr %6, align 4
  switch i32 %63, label %106 [
    i32 2, label %64
  ]

64:                                               ; preds = %62
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #6
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %65

65:                                               ; preds = %96, %64
  %66 = load i32, ptr %7, align 4, !tbaa !5
  %67 = icmp slt i32 %66, 3
  br i1 %67, label %69, label %68

68:                                               ; preds = %65
  store i32 5, ptr %6, align 4
  br label %99

69:                                               ; preds = %65
  %70 = load i32, ptr %7, align 4, !tbaa !5
  %71 = sext i32 %70 to i64
  %72 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr %2, i64 0, i64 %71
  %73 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %72, i64 noundef 0)
          to label %74 unwind label %91

74:                                               ; preds = %69
  %75 = load i8, ptr %73, align 1, !tbaa !9
  %76 = sext i8 %75 to i32
  %77 = load i32, ptr %7, align 4, !tbaa !5
  %78 = sub nsw i32 2, %77
  %79 = sext i32 %78 to i64
  %80 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr %2, i64 0, i64 %79
  %81 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %80, i64 noundef 2)
          to label %82 unwind label %91

82:                                               ; preds = %74
  %83 = load i8, ptr %81, align 1, !tbaa !9
  %84 = sext i8 %83 to i32
  %85 = icmp ne i32 %76, %84
  br i1 %85, label %86, label %95

86:                                               ; preds = %82
  %87 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
          to label %88 unwind label %91

88:                                               ; preds = %86
  %89 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %87, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %90 unwind label %91

90:                                               ; preds = %88
  store i32 0, ptr %1, align 4
  store i32 1, ptr %6, align 4
  br label %99

91:                                               ; preds = %88, %86, %74, %69
  %92 = landingpad { ptr, i32 }
          cleanup
  %93 = extractvalue { ptr, i32 } %92, 0
  store ptr %93, ptr %3, align 8
  %94 = extractvalue { ptr, i32 } %92, 1
  store i32 %94, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  br label %115

95:                                               ; preds = %82
  br label %96

96:                                               ; preds = %95
  %97 = load i32, ptr %7, align 4, !tbaa !5
  %98 = add nsw i32 %97, 1
  store i32 %98, ptr %7, align 4, !tbaa !5
  br label %65, !llvm.loop !12

99:                                               ; preds = %90, %68
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  %100 = load i32, ptr %6, align 4
  switch i32 %100, label %106 [
    i32 5, label %101
  ]

101:                                              ; preds = %99
  %102 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
          to label %103 unwind label %28

103:                                              ; preds = %101
  %104 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %102, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %105 unwind label %28

105:                                              ; preds = %103
  store i32 0, ptr %1, align 4
  store i32 1, ptr %6, align 4
  br label %106

106:                                              ; preds = %105, %99, %62
  %107 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr %2, i32 0, i32 0
  %108 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %107, i64 3
  br label %109

109:                                              ; preds = %109, %106
  %110 = phi ptr [ %108, %106 ], [ %111, %109 ]
  %111 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %110, i64 -1
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %111) #6
  %112 = icmp eq ptr %111, %107
  br i1 %112, label %113, label %109

113:                                              ; preds = %109
  call void @llvm.lifetime.end.p0(i64 96, ptr %2) #6
  %114 = load i32, ptr %1, align 4
  ret i32 %114

115:                                              ; preds = %91, %54, %28
  %116 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr %2, i32 0, i32 0
  %117 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %116, i64 3
  br label %118

118:                                              ; preds = %118, %115
  %119 = phi ptr [ %117, %115 ], [ %120, %118 ]
  %120 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %119, i64 -1
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %120) #6
  %121 = icmp eq ptr %120, %116
  br i1 %121, label %122, label %118

122:                                              ; preds = %118
  call void @llvm.lifetime.end.p0(i64 96, ptr %2) #6
  br label %123

123:                                              ; preds = %122
  %124 = load ptr, ptr %3, align 8
  %125 = load i32, ptr %4, align 4
  %126 = insertvalue { ptr, i32 } poison, ptr %124, 0
  %127 = insertvalue { ptr, i32 } %126, i32 %125, 1
  resume { ptr, i32 } %127
}

; 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: 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: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #4

; 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)) #4

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

; 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"}
!12 = distinct !{!12, !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
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca [3 x %"class.std::__cxx11::basic_string"], align 16
  call void @llvm.lifetime.start.p0(i64 96, ptr nonnull %1) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %.ptr.1 = getelementptr inbounds i8, ptr %1, i64 32
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %.ptr.1) #6
  %.ptr.2 = getelementptr inbounds i8, ptr %1, i64 64
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %.ptr.2) #6
  %2 = 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 %3 unwind label %23

3:                                                ; preds = %0
  %4 = 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) %2, ptr noundef nonnull align 8 dereferenceable(32) %.ptr.1)
          to label %5 unwind label %23

5:                                                ; preds = %3
  %6 = 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) %4, ptr noundef nonnull align 8 dereferenceable(32) %.ptr.2)
          to label %.preheader.preheader unwind label %23

.preheader.preheader:                             ; preds = %5
  %7 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 0)
  %8 = load i8, ptr %7, align 1, !tbaa !5
  %9 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %.ptr.2, i64 noundef 2)
  %10 = load i8, ptr %9, align 1, !tbaa !5
  %.not = icmp eq i8 %8, %10
  br i1 %.not, label %.preheader.1, label %25

.preheader.1:                                     ; preds = %.preheader.preheader
  %11 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 1)
  %12 = load i8, ptr %11, align 1, !tbaa !5
  %13 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %.ptr.2, i64 noundef 1)
  %14 = load i8, ptr %13, align 1, !tbaa !5
  %.not.1 = icmp eq i8 %12, %14
  br i1 %.not.1, label %.preheader.2, label %25

.preheader.2:                                     ; preds = %.preheader.1
  %15 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 2)
  %16 = load i8, ptr %15, align 1, !tbaa !5
  %17 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %.ptr.2, i64 noundef 0)
  %18 = load i8, ptr %17, align 1, !tbaa !5
  %.not.2 = icmp eq i8 %16, %18
  br i1 %.not.2, label %.critedge.preheader.preheader, label %25

.critedge.preheader.preheader:                    ; preds = %.preheader.2
  %19 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 0)
  %20 = load i8, ptr %19, align 1, !tbaa !5
  %21 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %.ptr.2, i64 noundef 2)
  %22 = load i8, ptr %21, align 1, !tbaa !5
  %.not23 = icmp eq i8 %20, %22
  br i1 %.not23, label %.critedge, label %40

23:                                               ; preds = %46, %.critedge.2, %5, %3, %0
  %24 = landingpad { ptr, i32 }
          cleanup
  br label %51

25:                                               ; preds = %.preheader.2, %.preheader.1, %.preheader.preheader
  %26 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
          to label %27 unwind label %29

27:                                               ; preds = %25
  %28 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %26, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %48 unwind label %29

29:                                               ; preds = %27, %25
  %30 = landingpad { ptr, i32 }
          cleanup
  br label %51

.critedge:                                        ; preds = %.critedge.preheader.preheader
  %31 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %.ptr.1, i64 noundef 0)
  %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) %.ptr.1, i64 noundef 2)
  %34 = load i8, ptr %33, align 1, !tbaa !5
  %.not23.1 = icmp eq i8 %32, %34
  br i1 %.not23.1, label %.critedge.1, label %40

.critedge.1:                                      ; preds = %.critedge
  %35 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %.ptr.2, i64 noundef 0)
  %36 = load i8, ptr %35, align 1, !tbaa !5
  %37 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 2)
  %38 = load i8, ptr %37, align 1, !tbaa !5
  %.not23.2 = icmp eq i8 %36, %38
  br i1 %.not23.2, label %.critedge.2, label %40

.critedge.2:                                      ; preds = %.critedge.1
  %39 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.1)
          to label %46 unwind label %23

40:                                               ; preds = %.critedge.1, %.critedge, %.critedge.preheader.preheader
  %41 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
          to label %42 unwind label %44

42:                                               ; preds = %40
  %43 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %41, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %48 unwind label %44

44:                                               ; preds = %42, %40
  %45 = landingpad { ptr, i32 }
          cleanup
  br label %51

46:                                               ; preds = %.critedge.2
  %47 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %39, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %48 unwind label %23

48:                                               ; preds = %42, %27, %46
  %49 = getelementptr inbounds i8, ptr %1, i64 64
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %49) #6
  %50 = getelementptr inbounds i8, ptr %1, i64 32
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %50) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 96, ptr nonnull %1) #6
  ret i32 0

51:                                               ; preds = %44, %29, %23
  %.pn = phi { ptr, i32 } [ %24, %23 ], [ %45, %44 ], [ %30, %29 ]
  %52 = getelementptr inbounds i8, ptr %1, i64 64
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %52) #6
  %53 = getelementptr inbounds i8, ptr %1, i64 32
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %53) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 96, 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

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: 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: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #4

; 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)) #4

; 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 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"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,SROAPass,SimplifyCFGPass