; LLVM IR from kazunetakahashi/atcoder :: 2019/0127_nikkei2019-qual/E2.ll (Z3dfsxi)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::tuple<long long, int, int, bool>, std::allocator<std::tuple<long long, int, int, bool>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::tuple<long long, int, int, bool>, std::allocator<std::tuple<long long, int, int, bool>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::tuple<long long, int, int, bool>, std::allocator<std::tuple<long long, int, int, bool>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::tuple<long long, int, int, bool>, std::allocator<std::tuple<long long, int, int, bool>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@V = external dso_local global %"class.std::vector", align 8
@W = external dso_local global [100010 x %"class.std::vector.0"], align 16
@visited = external dso_local global [100010 x i8], align 16
@_ZSt4cerr = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3dfsxi(i64 noundef %0, i32 noundef %1) #0 {
  %3 = alloca i64, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  %11 = alloca i64, align 8
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  store i64 %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %15 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cerr, ptr noundef @.str)
  %16 = load i64, ptr %3, align 8, !tbaa !5
  %17 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) %15, i64 noundef %16)
  %18 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %17, ptr noundef @.str.4)
  %19 = load i32, ptr %4, align 4, !tbaa !9
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %18, i32 noundef %19)
  %21 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %20, ptr noundef @.str.5)
  %22 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %21, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %23 = load i32, ptr %4, align 4, !tbaa !9
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds [100010 x i8], ptr @visited, i64 0, i64 %24
  %26 = load i8, ptr %25, align 1, !tbaa !11, !range !13, !noundef !14
  %27 = trunc i8 %26 to i1
  br i1 %27, label %28, label %29

28:                                               ; preds = %2
  br label %106

29:                                               ; preds = %2
  %30 = load i32, ptr %4, align 4, !tbaa !9
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds [100010 x i8], ptr @visited, i64 0, i64 %31
  store i8 1, ptr %32, align 1, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #6
  %33 = load i32, ptr %4, align 4, !tbaa !9
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds [100010 x %"class.std::vector.0"], ptr @W, i64 0, i64 %34
  store ptr %35, ptr %5, align 8, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  %36 = load ptr, ptr %5, align 8, !tbaa !15
  %37 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %36) #6
  %38 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %6, i32 0, i32 0
  store ptr %37, ptr %38, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  %39 = load ptr, ptr %5, align 8, !tbaa !15
  %40 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %39) #6
  %41 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  store ptr %40, ptr %41, align 8
  br label %42

42:                                               ; preds = %104, %29
  %43 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #6
  br i1 %43, label %45, label %44

44:                                               ; preds = %42
  store i32 2, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #6
  br label %106

45:                                               ; preds = %42
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #6
  %46 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #6
  %47 = load i32, ptr %46, align 4, !tbaa !9
  store i32 %47, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  %48 = load i32, ptr %9, align 4, !tbaa !9
  %49 = sext i32 %48 to i64
  %50 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt5tupleIJxiibEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @V, i64 noundef %49) #6
  store ptr %50, ptr %10, align 8, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #6
  %51 = load ptr, ptr %10, align 8, !tbaa !15
  %52 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3getILm0EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24) %51) #6
  %53 = load i64, ptr %52, align 8, !tbaa !5
  store i64 %53, ptr %11, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #6
  %54 = load ptr, ptr %10, align 8, !tbaa !15
  %55 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm1EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24) %54) #6
  %56 = load i32, ptr %55, align 4, !tbaa !9
  store i32 %56, ptr %12, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #6
  %57 = load ptr, ptr %10, align 8, !tbaa !15
  %58 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm2EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24) %57) #6
  %59 = load i32, ptr %58, align 4, !tbaa !9
  store i32 %59, ptr %13, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #6
  %60 = load i32, ptr %12, align 4, !tbaa !9
  %61 = load i32, ptr %4, align 4, !tbaa !9
  %62 = icmp eq i32 %60, %61
  br i1 %62, label %63, label %65

63:                                               ; preds = %45
  %64 = load i32, ptr %13, align 4, !tbaa !9
  br label %67

65:                                               ; preds = %45
  %66 = load i32, ptr %12, align 4, !tbaa !9
  br label %67

67:                                               ; preds = %65, %63
  %68 = phi i32 [ %64, %63 ], [ %66, %65 ]
  store i32 %68, ptr %14, align 4, !tbaa !9
  %69 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cerr, ptr noundef @.str.6)
  %70 = load i64, ptr %11, align 8, !tbaa !5
  %71 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) %69, i64 noundef %70)
  %72 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %71, ptr noundef @.str.7)
  %73 = load i32, ptr %14, align 4, !tbaa !9
  %74 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %72, i32 noundef %73)
  %75 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %74, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %76 = load ptr, ptr %10, align 8, !tbaa !15
  %77 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZSt3getILm3EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24) %76) #6
  %78 = load i8, ptr %77, align 1, !tbaa !11, !range !13, !noundef !14
  %79 = trunc i8 %78 to i1
  br i1 %79, label %80, label %81

80:                                               ; preds = %67
  store i32 3, ptr %8, align 4
  br label %98

81:                                               ; preds = %67
  %82 = load i64, ptr %3, align 8, !tbaa !5
  %83 = load i64, ptr %11, align 8, !tbaa !5
  %84 = icmp sge i64 %82, %83
  br i1 %84, label %85, label %97

85:                                               ; preds = %81
  %86 = load ptr, ptr %10, align 8, !tbaa !15
  %87 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZSt3getILm3EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24) %86) #6
  store i8 1, ptr %87, align 1, !tbaa !11
  %88 = load i32, ptr %14, align 4, !tbaa !9
  %89 = sext i32 %88 to i64
  %90 = getelementptr inbounds [100010 x i8], ptr @visited, i64 0, i64 %89
  %91 = load i8, ptr %90, align 1, !tbaa !11, !range !13, !noundef !14
  %92 = trunc i8 %91 to i1
  br i1 %92, label %96, label %93

93:                                               ; preds = %85
  %94 = load i64, ptr %3, align 8, !tbaa !5
  %95 = load i32, ptr %14, align 4, !tbaa !9
  call void @_Z3dfsxi(i64 noundef %94, i32 noundef %95)
  br label %96

96:                                               ; preds = %93, %85
  br label %97

97:                                               ; preds = %96, %81
  store i32 0, ptr %8, align 4
  br label %98

98:                                               ; preds = %97, %80
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  %99 = load i32, ptr %8, align 4
  switch i32 %99, label %101 [
    i32 0, label %100
  ]

100:                                              ; preds = %98
  store i32 0, ptr %8, align 4
  br label %101

101:                                              ; preds = %100, %98
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  %102 = load i32, ptr %8, align 4
  switch i32 %102, label %107 [
    i32 0, label %103
    i32 3, label %104
  ]

103:                                              ; preds = %101
  br label %104

104:                                              ; preds = %103, %101
  %105 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #6
  br label %42

106:                                              ; preds = %44, %28
  ret void

107:                                              ; preds = %101
  unreachable
}

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #1

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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2

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

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

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt5tupleIJxiibEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3getILm0EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm1EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm2EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZSt3getILm3EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24)) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #4 align 2

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

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

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


; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::tuple<long long, int, int, bool>, std::allocator<std::tuple<long long, int, int, bool>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::tuple<long long, int, int, bool>, std::allocator<std::tuple<long long, int, int, bool>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::tuple<long long, int, int, bool>, std::allocator<std::tuple<long long, int, int, bool>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::tuple<long long, int, int, bool>, std::allocator<std::tuple<long long, int, int, bool>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@V = external dso_local global %"class.std::vector", align 8
@W = external dso_local global [100010 x %"class.std::vector.0"], align 16
@visited = external dso_local local_unnamed_addr global [100010 x i8], align 16
@_ZSt4cerr = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3dfsxi(i64 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %5 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cerr, ptr noundef nonnull @.str)
  %6 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) %5, i64 noundef %0)
  %7 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull @.str.4)
  %8 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %7, i32 noundef %1)
  %9 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull @.str.5)
  %10 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %11 = sext i32 %1 to i64
  %12 = getelementptr inbounds [100010 x i8], ptr @visited, i64 0, i64 %11
  %13 = load i8, ptr %12, align 1, !tbaa !5, !range !9, !noundef !10
  %14 = trunc nuw i8 %13 to i1
  br i1 %14, label %50, label %15

15:                                               ; preds = %2
  store i8 1, ptr %12, align 1, !tbaa !5
  %16 = getelementptr inbounds [100010 x %"class.std::vector.0"], ptr @W, i64 0, i64 %11
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  %17 = tail call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %16) #6
  store ptr %17, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  %18 = tail call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %16) #6
  store ptr %18, ptr %4, align 8
  %19 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #6
  br i1 %19, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %47, %15
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  br label %50

.lr.ph:                                           ; preds = %15, %47
  %20 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #6
  %21 = load i32, ptr %20, align 4, !tbaa !11
  %22 = sext i32 %21 to i64
  %23 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt5tupleIJxiibEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @V, i64 noundef %22) #6
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3getILm0EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24) %23) #6
  %25 = load i64, ptr %24, align 8, !tbaa !13
  %26 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm1EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24) %23) #6
  %27 = load i32, ptr %26, align 4, !tbaa !11
  %28 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm2EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24) %23) #6
  %29 = load i32, ptr %28, align 4, !tbaa !11
  %30 = icmp eq i32 %27, %1
  %31 = select i1 %30, i32 %29, i32 %27
  %32 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cerr, ptr noundef nonnull @.str.6)
  %33 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) %32, i64 noundef %25)
  %34 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %33, ptr noundef nonnull @.str.7)
  %35 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %34, i32 noundef %31)
  %36 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %35, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %37 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZSt3getILm3EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24) %23) #6
  %38 = load i8, ptr %37, align 1, !tbaa !5, !range !9, !noundef !10
  %39 = trunc nuw i8 %38 to i1
  %.not = icmp sgt i64 %25, %0
  %or.cond = select i1 %39, i1 true, i1 %.not
  br i1 %or.cond, label %47, label %40

40:                                               ; preds = %.lr.ph
  %41 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZSt3getILm3EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24) %23) #6
  store i8 1, ptr %41, align 1, !tbaa !5
  %42 = sext i32 %31 to i64
  %43 = getelementptr inbounds [100010 x i8], ptr @visited, i64 0, i64 %42
  %44 = load i8, ptr %43, align 1, !tbaa !5, !range !9, !noundef !10
  %45 = trunc nuw i8 %44 to i1
  br i1 %45, label %47, label %46

46:                                               ; preds = %40
  call void @_Z3dfsxi(i64 noundef %0, i32 noundef %31)
  br label %47

47:                                               ; preds = %46, %40, %.lr.ph
  %48 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #6
  %49 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #6
  br i1 %49, label %.lr.ph, label %._crit_edge

50:                                               ; preds = %2, %._crit_edge
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #1

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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

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

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

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt5tupleIJxiibEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3getILm0EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm1EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm2EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZSt3getILm3EJxiibEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 2

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

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"bool", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{i8 0, i8 2}
!10 = !{}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"long long", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass