; LLVM IR from bqi343/cp-notebook :: Contests/USACO Solutions/2019-20/Dec/Bronze (livestock)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"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
@N = external dso_local global i32, align 4
@_Z5namesB5cxx11 = external dso_local global %"class.std::vector", align 8
@adj = external dso_local global [8 x %"class.std::set"], align 16
@done = external dso_local global [8 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #2

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z2idNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z2aeii(i32 noundef, i32 noundef) #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3fini(i32 noundef) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #4 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca %"class.std::__cxx11::basic_string", align 8
  %11 = alloca %"class.std::__cxx11::basic_string", align 8
  %12 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %13 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %14 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %15 = getelementptr i8, ptr %14, i64 -24
  %16 = load i64, ptr %15, align 8
  %17 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %16
  %18 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %17, ptr noundef null)
  %19 = call ptr @_ZSt5beginISt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEEDTcldtfp_5beginEERT_(ptr noundef nonnull align 8 dereferenceable(24) @_Z5namesB5cxx11)
  %20 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %2, i32 0, i32 0
  store ptr %19, ptr %20, align 8
  %21 = call ptr @_ZSt3endISt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEEDTcldtfp_3endEERT_(ptr noundef nonnull align 8 dereferenceable(24) @_Z5namesB5cxx11)
  %22 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %3, i32 0, i32 0
  store ptr %21, ptr %22, align 8
  %23 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %2, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8
  %25 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %3, i32 0, i32 0
  %26 = load ptr, ptr %25, align 8
  call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt6vectorIS7_SaIS7_EEEEEvT_SD_(ptr %24, ptr %26)
  call void @_ZN5input2reIiEEvRT_(ptr noundef nonnull align 4 dereferenceable(4) @N)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #7
  store i32 0, ptr %4, align 4, !tbaa !8
  br label %27

27:                                               ; preds = %39, %0
  %28 = load i32, ptr %4, align 4, !tbaa !8
  %29 = load i32, ptr @N, align 4, !tbaa !8
  %30 = icmp slt i32 %28, %29
  br i1 %30, label %32, label %31

31:                                               ; preds = %27
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  br label %56

32:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 32, ptr %5) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr %6) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr %7) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  invoke void @_ZN5input2reINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEJS6_S6_S6_S6_S6_EEEvRT_DpRT0_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(32) %7)
          to label %33 unwind label %42

33:                                               ; preds = %32
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %10, ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %34 unwind label %42

34:                                               ; preds = %33
  %35 = call noundef i32 @_Z2idNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %10)
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %11, ptr noundef nonnull align 8 dereferenceable(32) %7)
          to label %36 unwind label %46

36:                                               ; preds = %34
  %37 = call noundef i32 @_Z2idNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %11)
  invoke void @_Z2aeii(i32 noundef %35, i32 noundef %37)
          to label %38 unwind label %50

38:                                               ; preds = %36
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #7
  br label %39

39:                                               ; preds = %38
  %40 = load i32, ptr %4, align 4, !tbaa !8
  %41 = add nsw i32 %40, 1
  store i32 %41, ptr %4, align 4, !tbaa !8
  br label %27, !llvm.loop !11

42:                                               ; preds = %33, %32
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %8, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %9, align 4
  br label %55

46:                                               ; preds = %34
  %47 = landingpad { ptr, i32 }
          cleanup
  %48 = extractvalue { ptr, i32 } %47, 0
  store ptr %48, ptr %8, align 8
  %49 = extractvalue { ptr, i32 } %47, 1
  store i32 %49, ptr %9, align 4
  br label %54

50:                                               ; preds = %36
  %51 = landingpad { ptr, i32 }
          cleanup
  %52 = extractvalue { ptr, i32 } %51, 0
  store ptr %52, ptr %8, align 8
  %53 = extractvalue { ptr, i32 } %51, 1
  store i32 %53, ptr %9, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #7
  br label %54

54:                                               ; preds = %50, %46
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #7
  br label %55

55:                                               ; preds = %54, %42
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  br label %82

56:                                               ; preds = %31
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #7
  store i32 0, ptr %12, align 4, !tbaa !8
  br label %57

57:                                               ; preds = %77, %56
  %58 = load i32, ptr %12, align 4, !tbaa !8
  %59 = icmp slt i32 %58, 8
  br i1 %59, label %61, label %60

60:                                               ; preds = %57
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  br label %80

61:                                               ; preds = %57
  %62 = load i32, ptr %12, align 4, !tbaa !8
  %63 = sext i32 %62 to i64
  %64 = getelementptr inbounds [8 x i8], ptr @done, i64 0, i64 %63
  %65 = load i8, ptr %64, align 1, !tbaa !13, !range !15, !noundef !16
  %66 = trunc i8 %65 to i1
  br i1 %66, label %76, label %67

67:                                               ; preds = %61
  %68 = load i32, ptr %12, align 4, !tbaa !8
  %69 = sext i32 %68 to i64
  %70 = getelementptr inbounds [8 x %"class.std::set"], ptr @adj, i64 0, i64 %69
  %71 = call noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %70) #7
  %72 = trunc i64 %71 to i32
  %73 = icmp sle i32 %72, 1
  br i1 %73, label %74, label %76

74:                                               ; preds = %67
  %75 = load i32, ptr %12, align 4, !tbaa !8
  call void @_Z3fini(i32 noundef %75)
  br label %76

76:                                               ; preds = %74, %67, %61
  br label %77

77:                                               ; preds = %76
  %78 = load i32, ptr %12, align 4, !tbaa !8
  %79 = add nsw i32 %78, 1
  store i32 %79, ptr %12, align 4, !tbaa !8
  br label %57, !llvm.loop !17

80:                                               ; preds = %60
  %81 = load i32, ptr %1, align 4
  ret i32 %81

82:                                               ; preds = %55
  %83 = load ptr, ptr %8, align 8
  %84 = load i32, ptr %9, align 4
  %85 = insertvalue { ptr, i32 } poison, ptr %83, 0
  %86 = insertvalue { ptr, i32 } %85, i32 %84, 1
  resume { ptr, i32 } %86
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt6vectorIS7_SaIS7_EEEEEvT_SD_(ptr, ptr) #5

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local ptr @_ZSt5beginISt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEEDTcldtfp_5beginEERT_(ptr noundef nonnull align 8 dereferenceable(24)) #6

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local ptr @_ZSt3endISt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEEDTcldtfp_3endEERT_(ptr noundef nonnull align 8 dereferenceable(24)) #6

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5input2reIiEEvRT_(ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5input2reINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEJS6_S6_S6_S6_S6_EEEvRT_DpRT0_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #3

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 #6 = { 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 #7 = { nounwind }

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

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


; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"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
@N = external dso_local global i32, align 4
@_Z5namesB5cxx11 = external dso_local global %"class.std::vector", align 8
@adj = external dso_local global [8 x %"class.std::set"], align 16
@done = external dso_local local_unnamed_addr global [8 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z2idNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z2aeii(i32 noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3fini(i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #4 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %7 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %8 = getelementptr i8, ptr %7, i64 -24
  %9 = load i64, ptr %8, align 8
  %10 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %9
  %11 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %10, ptr noundef null)
  %12 = tail call ptr @_ZSt5beginISt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEEDTcldtfp_5beginEERT_(ptr noundef nonnull align 8 dereferenceable(24) @_Z5namesB5cxx11)
  %13 = tail call ptr @_ZSt3endISt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEEDTcldtfp_3endEERT_(ptr noundef nonnull align 8 dereferenceable(24) @_Z5namesB5cxx11)
  tail call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt6vectorIS7_SaIS7_EEEEEvT_SD_(ptr %12, ptr %13)
  tail call void @_ZN5input2reIiEEvRT_(ptr noundef nonnull align 4 dereferenceable(4) @N)
  %14 = load i32, ptr @N, align 4, !tbaa !8
  %15 = icmp sgt i32 %14, 0
  br i1 %15, label %.lr.ph, label %.preheader

.preheader:                                       ; preds = %23, %0
  %16 = load i8, ptr @done, align 1, !tbaa !11, !range !13, !noundef !14
  %17 = trunc nuw i8 %16 to i1
  br i1 %17, label %40, label %35

.lr.ph:                                           ; preds = %0, %23
  %.01316 = phi i32 [ %24, %23 ], [ 0, %0 ]
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  invoke void @_ZN5input2reINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEJS6_S6_S6_S6_S6_EEEvRT_DpRT0_(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %18 unwind label %27

18:                                               ; preds = %.lr.ph
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %19 unwind label %27

19:                                               ; preds = %18
  %20 = call noundef i32 @_Z2idNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %4)
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %21 unwind label %29

21:                                               ; preds = %19
  %22 = call noundef i32 @_Z2idNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %5)
  invoke void @_Z2aeii(i32 noundef %20, i32 noundef %22)
          to label %23 unwind label %31

23:                                               ; preds = %21
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #7
  %24 = add nuw nsw i32 %.01316, 1
  %25 = load i32, ptr @N, align 4, !tbaa !8
  %26 = icmp slt i32 %24, %25
  br i1 %26, label %.lr.ph, label %.preheader, !llvm.loop !15

27:                                               ; preds = %18, %.lr.ph
  %28 = landingpad { ptr, i32 }
          cleanup
  br label %34

29:                                               ; preds = %19
  %30 = landingpad { ptr, i32 }
          cleanup
  br label %33

31:                                               ; preds = %21
  %32 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  br label %33

33:                                               ; preds = %31, %29
  %.pn = phi { ptr, i32 } [ %32, %31 ], [ %30, %29 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  br label %34

34:                                               ; preds = %33, %27
  %.pn.pn = phi { ptr, i32 } [ %.pn, %33 ], [ %28, %27 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn.pn

35:                                               ; preds = %.preheader
  %36 = call noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) @adj) #7
  %37 = trunc i64 %36 to i32
  %38 = icmp slt i32 %37, 2
  br i1 %38, label %39, label %40

39:                                               ; preds = %35
  call void @_Z3fini(i32 noundef 0)
  br label %40

40:                                               ; preds = %.preheader, %35, %39
  %41 = load i8, ptr getelementptr inbounds (i8, ptr @done, i64 1), align 1, !tbaa !11, !range !13, !noundef !14
  %42 = trunc nuw i8 %41 to i1
  br i1 %42, label %48, label %43

43:                                               ; preds = %40
  %44 = call noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) getelementptr inbounds (i8, ptr @adj, i64 48)) #7
  %45 = trunc i64 %44 to i32
  %46 = icmp slt i32 %45, 2
  br i1 %46, label %47, label %48

47:                                               ; preds = %43
  call void @_Z3fini(i32 noundef 1)
  br label %48

48:                                               ; preds = %47, %43, %40
  %49 = load i8, ptr getelementptr inbounds (i8, ptr @done, i64 2), align 1, !tbaa !11, !range !13, !noundef !14
  %50 = trunc nuw i8 %49 to i1
  br i1 %50, label %56, label %51

51:                                               ; preds = %48
  %52 = call noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) getelementptr inbounds (i8, ptr @adj, i64 96)) #7
  %53 = trunc i64 %52 to i32
  %54 = icmp slt i32 %53, 2
  br i1 %54, label %55, label %56

55:                                               ; preds = %51
  call void @_Z3fini(i32 noundef 2)
  br label %56

56:                                               ; preds = %55, %51, %48
  %57 = load i8, ptr getelementptr inbounds (i8, ptr @done, i64 3), align 1, !tbaa !11, !range !13, !noundef !14
  %58 = trunc nuw i8 %57 to i1
  br i1 %58, label %64, label %59

59:                                               ; preds = %56
  %60 = call noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) getelementptr inbounds (i8, ptr @adj, i64 144)) #7
  %61 = trunc i64 %60 to i32
  %62 = icmp slt i32 %61, 2
  br i1 %62, label %63, label %64

63:                                               ; preds = %59
  call void @_Z3fini(i32 noundef 3)
  br label %64

64:                                               ; preds = %63, %59, %56
  %65 = load i8, ptr getelementptr inbounds (i8, ptr @done, i64 4), align 1, !tbaa !11, !range !13, !noundef !14
  %66 = trunc nuw i8 %65 to i1
  br i1 %66, label %72, label %67

67:                                               ; preds = %64
  %68 = call noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) getelementptr inbounds (i8, ptr @adj, i64 192)) #7
  %69 = trunc i64 %68 to i32
  %70 = icmp slt i32 %69, 2
  br i1 %70, label %71, label %72

71:                                               ; preds = %67
  call void @_Z3fini(i32 noundef 4)
  br label %72

72:                                               ; preds = %71, %67, %64
  %73 = load i8, ptr getelementptr inbounds (i8, ptr @done, i64 5), align 1, !tbaa !11, !range !13, !noundef !14
  %74 = trunc nuw i8 %73 to i1
  br i1 %74, label %80, label %75

75:                                               ; preds = %72
  %76 = call noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) getelementptr inbounds (i8, ptr @adj, i64 240)) #7
  %77 = trunc i64 %76 to i32
  %78 = icmp slt i32 %77, 2
  br i1 %78, label %79, label %80

79:                                               ; preds = %75
  call void @_Z3fini(i32 noundef 5)
  br label %80

80:                                               ; preds = %79, %75, %72
  %81 = load i8, ptr getelementptr inbounds (i8, ptr @done, i64 6), align 1, !tbaa !11, !range !13, !noundef !14
  %82 = trunc nuw i8 %81 to i1
  br i1 %82, label %88, label %83

83:                                               ; preds = %80
  %84 = call noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) getelementptr inbounds (i8, ptr @adj, i64 288)) #7
  %85 = trunc i64 %84 to i32
  %86 = icmp slt i32 %85, 2
  br i1 %86, label %87, label %88

87:                                               ; preds = %83
  call void @_Z3fini(i32 noundef 6)
  br label %88

88:                                               ; preds = %87, %83, %80
  %89 = load i8, ptr getelementptr inbounds (i8, ptr @done, i64 7), align 1, !tbaa !11, !range !13, !noundef !14
  %90 = trunc nuw i8 %89 to i1
  br i1 %90, label %96, label %91

91:                                               ; preds = %88
  %92 = call noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) getelementptr inbounds (i8, ptr @adj, i64 336)) #7
  %93 = trunc i64 %92 to i32
  %94 = icmp slt i32 %93, 2
  br i1 %94, label %95, label %96

95:                                               ; preds = %91
  call void @_Z3fini(i32 noundef 7)
  br label %96

96:                                               ; preds = %95, %91, %88
  ret i32 0
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt6vectorIS7_SaIS7_EEEEEvT_SD_(ptr, ptr) local_unnamed_addr #5

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local ptr @_ZSt5beginISt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEEDTcldtfp_5beginEERT_(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #6

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local ptr @_ZSt3endISt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEEDTcldtfp_3endEERT_(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #6

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5input2reIiEEvRT_(ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5input2reINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEJS6_S6_S6_S6_S6_EEEvRT_DpRT0_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 #6 = { 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 #7 = { nounwind }

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

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


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