; LLVM IR from brpapa/algorithms :: solutions/uva/10099.ll (Z7kruskalii)

; 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>, std::allocator<std::tuple<long long, int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::tuple<long long, int, int>, std::allocator<std::tuple<long long, int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::tuple<long long, int, int>, std::allocator<std::tuple<long long, int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::tuple<long long, int, int>, std::allocator<std::tuple<long long, int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%class.ufds = type <{ %"class.std::vector.0", %"class.std::vector.0", i32, [4 x i8] }>
%"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::reverse_iterator" = type { %"class.__gnu_cxx::__normal_iterator" }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.std::tuple" = type { %"struct.std::_Tuple_impl" }
%"struct.std::_Tuple_impl" = type { %"struct.std::_Tuple_impl.5", %"struct.std::_Head_base.8" }
%"struct.std::_Tuple_impl.5" = type { %"struct.std::_Tuple_impl.6", %"struct.std::_Head_base.7" }
%"struct.std::_Tuple_impl.6" = type { %"struct.std::_Head_base" }
%"struct.std::_Head_base" = type { i32 }
%"struct.std::_Head_base.7" = type { i32 }
%"struct.std::_Head_base.8" = type { i64 }
%"class.std::tuple.9" = type { %"struct.std::_Tuple_impl.10" }
%"struct.std::_Tuple_impl.10" = type { %"struct.std::_Tuple_impl.11", %"struct.std::_Head_base.15" }
%"struct.std::_Tuple_impl.11" = type { %"struct.std::_Tuple_impl.12", %"struct.std::_Head_base.14" }
%"struct.std::_Tuple_impl.12" = type { %"struct.std::_Head_base.13" }
%"struct.std::_Head_base.13" = type { ptr }
%"struct.std::_Head_base.14" = type { ptr }
%"struct.std::_Head_base.15" = type { ptr }

@V = external dso_local global i32, align 4
@edge_list = external dso_local global %"class.std::vector", align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z7kruskalii(i32 noundef %0, i32 noundef %1) #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %class.ufds, align 8
  %6 = alloca %"class.std::reverse_iterator", align 8
  %7 = alloca %"class.std::reverse_iterator", align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i64, align 8
  %11 = alloca ptr, align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %13 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %14 = alloca i32, align 4
  %15 = alloca %"class.std::tuple", align 8
  %16 = alloca i32, align 4
  %17 = alloca i32, align 4
  %18 = alloca i64, align 8
  %19 = alloca %"class.std::tuple.9", align 8
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 56, ptr %5) #6
  %20 = load i32, ptr @V, align 4, !tbaa !5
  call void @_ZN4ufdsC2Ei(ptr noundef nonnull align 8 dereferenceable(52) %5, i32 noundef %20)
  call void @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE6rbeginEv(ptr dead_on_unwind writable sret(%"class.std::reverse_iterator") align 8 %6, ptr noundef nonnull align 8 dereferenceable(24) @edge_list) #6
  call void @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE4rendEv(ptr dead_on_unwind writable sret(%"class.std::reverse_iterator") align 8 %7, ptr noundef nonnull align 8 dereferenceable(24) @edge_list) #6
  invoke void @_ZSt4sortISt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPSt5tupleIJxiiEESt6vectorIS4_SaIS4_EEEEEEvT_SB_(ptr noundef %6, ptr noundef %7)
          to label %21 unwind label %29

21:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #6
  store ptr @edge_list, ptr %11, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #6
  %22 = call ptr @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @edge_list) #6
  %23 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  store ptr %22, ptr %23, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #6
  %24 = call ptr @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @edge_list) #6
  %25 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %13, i32 0, i32 0
  store ptr %24, ptr %25, align 8
  br label %26

26:                                               ; preds = %62, %21
  %27 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt5tupleIJxiiEESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %12, ptr noundef nonnull align 8 dereferenceable(8) %13) #6
  br i1 %27, label %33, label %28

28:                                               ; preds = %26
  store i32 2, ptr %14, align 4
  br label %64

29:                                               ; preds = %2
  %30 = landingpad { ptr, i32 }
          cleanup
  %31 = extractvalue { ptr, i32 } %30, 0
  store ptr %31, ptr %8, align 8
  %32 = extractvalue { ptr, i32 } %30, 1
  store i32 %32, ptr %9, align 4
  br label %67

33:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 16, ptr %15) #6
  %34 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt5tupleIJxiiEESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %12) #6
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %15, ptr align 8 %34, i64 16, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %18) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr %19) #6
  call void @_ZSt3tieIJxiiEESt5tupleIJDpRT_EES3_(ptr dead_on_unwind writable sret(%"class.std::tuple.9") align 8 %19, ptr noundef nonnull align 8 dereferenceable(8) %18, ptr noundef nonnull align 4 dereferenceable(4) %16, ptr noundef nonnull align 4 dereferenceable(4) %17) #6
  %35 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt5tupleIJRxRiS1_EEaSIJxiiEEENSt9enable_ifIXcl12__assignableIDpRKT_EEERS2_E4typeERKS_IJDpS5_EE(ptr noundef nonnull align 8 dereferenceable(24) %19, ptr noundef nonnull align 8 dereferenceable(16) %15) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %19) #6
  %36 = load i32, ptr %16, align 4, !tbaa !5
  %37 = load i32, ptr %17, align 4, !tbaa !5
  %38 = invoke noundef zeroext i1 @_ZN4ufds11is_same_setEii(ptr noundef nonnull align 8 dereferenceable(52) %5, i32 noundef %36, i32 noundef %37)
          to label %39 unwind label %50

39:                                               ; preds = %33
  br i1 %38, label %55, label %40

40:                                               ; preds = %39
  %41 = load i32, ptr %16, align 4, !tbaa !5
  %42 = load i32, ptr %17, align 4, !tbaa !5
  invoke void @_ZN4ufds10union_setsEii(ptr noundef nonnull align 8 dereferenceable(52) %5, i32 noundef %41, i32 noundef %42)
          to label %43 unwind label %50

43:                                               ; preds = %40
  %44 = load i32, ptr %3, align 4, !tbaa !5
  %45 = load i32, ptr %4, align 4, !tbaa !5
  %46 = invoke noundef zeroext i1 @_ZN4ufds11is_same_setEii(ptr noundef nonnull align 8 dereferenceable(52) %5, i32 noundef %44, i32 noundef %45)
          to label %47 unwind label %50

47:                                               ; preds = %43
  br i1 %46, label %48, label %54

48:                                               ; preds = %47
  %49 = load i64, ptr %18, align 8, !tbaa !11
  store i64 %49, ptr %10, align 8, !tbaa !11
  store i32 2, ptr %14, align 4
  br label %56

50:                                               ; preds = %43, %40, %33
  %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 @llvm.lifetime.end.p0(i64 8, ptr %18) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %15) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  call void @llvm.lifetime.end.p0(i64 8, 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
  br label %67

54:                                               ; preds = %47
  br label %55

55:                                               ; preds = %54, %39
  store i32 0, ptr %14, align 4
  br label %56

56:                                               ; preds = %55, %48
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #6
  %57 = load i32, ptr %14, align 4
  switch i32 %57, label %59 [
    i32 0, label %58
  ]

58:                                               ; preds = %56
  store i32 0, ptr %14, align 4
  br label %59

59:                                               ; preds = %58, %56
  call void @llvm.lifetime.end.p0(i64 16, ptr %15) #6
  %60 = load i32, ptr %14, align 4
  switch i32 %60, label %64 [
    i32 0, label %61
  ]

61:                                               ; preds = %59
  br label %62

62:                                               ; preds = %61
  %63 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt5tupleIJxiiEESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %12) #6
  br label %26

64:                                               ; preds = %59, %28
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  br label %65

65:                                               ; preds = %64
  %66 = load i64, ptr %10, align 8, !tbaa !11
  store i32 1, ptr %14, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  call void @_ZN4ufdsD2Ev(ptr noundef nonnull align 8 dereferenceable(52) %5) #6
  call void @llvm.lifetime.end.p0(i64 56, ptr %5) #6
  ret i64 %66

67:                                               ; preds = %50, %29
  call void @_ZN4ufdsD2Ev(ptr noundef nonnull align 8 dereferenceable(52) %5) #6
  call void @llvm.lifetime.end.p0(i64 56, ptr %5) #6
  br label %68

68:                                               ; preds = %67
  %69 = load ptr, ptr %8, align 8
  %70 = load i32, ptr %9, align 4
  %71 = insertvalue { ptr, i32 } poison, ptr %69, 0
  %72 = insertvalue { ptr, i32 } %71, i32 %70, 1
  resume { ptr, i32 } %72
}

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4ufdsC2Ei(ptr noundef nonnull align 8 dereferenceable(52), i32 noundef) unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortISt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPSt5tupleIJxiiEESt6vectorIS4_SaIS4_EEEEEEvT_SB_(ptr noundef, ptr noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE6rbeginEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE4rendEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt5tupleIJxiiEESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt5tupleIJxiiEESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZSt3tieIJxiiEESt5tupleIJDpRT_EES3_(ptr dead_on_unwind noalias writable sret(%"class.std::tuple.9") align 8, ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt5tupleIJRxRiS1_EEaSIJxiiEEENSt9enable_ifIXcl12__assignableIDpRKT_EEERS2_E4typeERKS_IJDpS5_EE(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(16)) #3 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN4ufds11is_same_setEii(ptr noundef nonnull align 8 dereferenceable(52), i32 noundef, i32 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4ufds10union_setsEii(ptr noundef nonnull align 8 dereferenceable(52), i32 noundef, i32 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt5tupleIJxiiEESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4ufdsD2Ev(ptr noundef nonnull align 8 dereferenceable(52)) 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 #4 = { 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 #5 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long long", !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>, std::allocator<std::tuple<long long, int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::tuple<long long, int, int>, std::allocator<std::tuple<long long, int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::tuple<long long, int, int>, std::allocator<std::tuple<long long, int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::tuple<long long, int, int>, std::allocator<std::tuple<long long, int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%class.ufds = type <{ %"class.std::vector.0", %"class.std::vector.0", i32, [4 x i8] }>
%"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::reverse_iterator" = type { %"class.__gnu_cxx::__normal_iterator" }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.std::tuple" = type { %"struct.std::_Tuple_impl" }
%"struct.std::_Tuple_impl" = type { %"struct.std::_Tuple_impl.5", %"struct.std::_Head_base.8" }
%"struct.std::_Tuple_impl.5" = type { %"struct.std::_Tuple_impl.6", %"struct.std::_Head_base.7" }
%"struct.std::_Tuple_impl.6" = type { %"struct.std::_Head_base" }
%"struct.std::_Head_base" = type { i32 }
%"struct.std::_Head_base.7" = type { i32 }
%"struct.std::_Head_base.8" = type { i64 }
%"class.std::tuple.9" = type { %"struct.std::_Tuple_impl.10" }
%"struct.std::_Tuple_impl.10" = type { %"struct.std::_Tuple_impl.11", %"struct.std::_Head_base.15" }
%"struct.std::_Tuple_impl.11" = type { %"struct.std::_Tuple_impl.12", %"struct.std::_Head_base.14" }
%"struct.std::_Tuple_impl.12" = type { %"struct.std::_Head_base.13" }
%"struct.std::_Head_base.13" = type { ptr }
%"struct.std::_Head_base.14" = type { ptr }
%"struct.std::_Head_base.15" = type { ptr }

@V = external dso_local local_unnamed_addr global i32, align 4
@edge_list = external dso_local global %"class.std::vector", align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z7kruskalii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca %class.ufds, align 8
  %4 = alloca %"class.std::reverse_iterator", align 8
  %5 = alloca %"class.std::reverse_iterator", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.std::tuple", align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i64, align 8
  %12 = alloca %"class.std::tuple.9", align 8
  call void @llvm.lifetime.start.p0(i64 56, ptr nonnull %3) #6
  %13 = load i32, ptr @V, align 4, !tbaa !5
  call void @_ZN4ufdsC2Ei(ptr noundef nonnull align 8 dereferenceable(52) %3, i32 noundef %13)
  call void @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE6rbeginEv(ptr dead_on_unwind nonnull writable sret(%"class.std::reverse_iterator") align 8 %4, ptr noundef nonnull align 8 dereferenceable(24) @edge_list) #6
  call void @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE4rendEv(ptr dead_on_unwind nonnull writable sret(%"class.std::reverse_iterator") align 8 %5, ptr noundef nonnull align 8 dereferenceable(24) @edge_list) #6
  invoke void @_ZSt4sortISt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPSt5tupleIJxiiEESt6vectorIS4_SaIS4_EEEEEEvT_SB_(ptr noundef nonnull %4, ptr noundef nonnull %5)
          to label %14 unwind label %18

14:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #6
  %15 = call ptr @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @edge_list) #6
  store ptr %15, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #6
  %16 = call ptr @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @edge_list) #6
  store ptr %16, ptr %7, align 8
  %17 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt5tupleIJxiiEESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #6
  br i1 %17, label %.lr.ph, label %._crit_edge

18:                                               ; preds = %2
  %19 = landingpad { ptr, i32 }
          cleanup
  br label %38

.lr.ph:                                           ; preds = %14, %35
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %8) #6
  %20 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt5tupleIJxiiEESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #6
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef nonnull align 8 dereferenceable(16) %20, i64 16, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %9) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %10) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %11) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %12) #6
  call void @_ZSt3tieIJxiiEESt5tupleIJDpRT_EES3_(ptr dead_on_unwind nonnull writable sret(%"class.std::tuple.9") align 8 %12, ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 4 dereferenceable(4) %9, ptr noundef nonnull align 4 dereferenceable(4) %10) #6
  %21 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt5tupleIJRxRiS1_EEaSIJxiiEEENSt9enable_ifIXcl12__assignableIDpRKT_EEERS2_E4typeERKS_IJDpS5_EE(ptr noundef nonnull align 8 dereferenceable(24) %12, ptr noundef nonnull align 8 dereferenceable(16) %8) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %12) #6
  %22 = load i32, ptr %9, align 4, !tbaa !5
  %23 = load i32, ptr %10, align 4, !tbaa !5
  %24 = invoke noundef zeroext i1 @_ZN4ufds11is_same_setEii(ptr noundef nonnull align 8 dereferenceable(52) %3, i32 noundef %22, i32 noundef %23)
          to label %25 unwind label %31

25:                                               ; preds = %.lr.ph
  br i1 %24, label %.thread, label %26

.thread:                                          ; preds = %25
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %8) #6
  br label %35

26:                                               ; preds = %25
  %27 = load i32, ptr %9, align 4, !tbaa !5
  %28 = load i32, ptr %10, align 4, !tbaa !5
  invoke void @_ZN4ufds10union_setsEii(ptr noundef nonnull align 8 dereferenceable(52) %3, i32 noundef %27, i32 noundef %28)
          to label %29 unwind label %31

29:                                               ; preds = %26
  %30 = invoke noundef zeroext i1 @_ZN4ufds11is_same_setEii(ptr noundef nonnull align 8 dereferenceable(52) %3, i32 noundef %0, i32 noundef %1)
          to label %33 unwind label %31

31:                                               ; preds = %29, %26, %.lr.ph
  %32 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #6
  br label %38

33:                                               ; preds = %29
  %34 = load i64, ptr %11, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %8) #6
  br i1 %30, label %._crit_edge, label %35

35:                                               ; preds = %.thread, %33
  %36 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt5tupleIJxiiEESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #6
  %37 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt5tupleIJxiiEESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #6
  br i1 %37, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %33, %35, %14
  %.2 = phi i64 [ undef, %14 ], [ undef, %35 ], [ %34, %33 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #6
  call void @_ZN4ufdsD2Ev(ptr noundef nonnull align 8 dereferenceable(52) %3) #6
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %3) #6
  ret i64 %.2

38:                                               ; preds = %31, %18
  %.pn = phi { ptr, i32 } [ %32, %31 ], [ %19, %18 ]
  call void @_ZN4ufdsD2Ev(ptr noundef nonnull align 8 dereferenceable(52) %3) #6
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %3) #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 uwtable
declare dso_local void @_ZN4ufdsC2Ei(ptr noundef nonnull align 8 dereferenceable(52), i32 noundef) unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortISt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPSt5tupleIJxiiEESt6vectorIS4_SaIS4_EEEEEEvT_SB_(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE6rbeginEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE4rendEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt5tupleIJxiiEESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt5tupleIJxiiEESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt5tupleIJxiiEESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZSt3tieIJxiiEESt5tupleIJDpRT_EES3_(ptr dead_on_unwind noalias writable sret(%"class.std::tuple.9") align 8, ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt5tupleIJRxRiS1_EEaSIJxiiEEENSt9enable_ifIXcl12__assignableIDpRKT_EEERS2_E4typeERKS_IJDpS5_EE(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #3 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN4ufds11is_same_setEii(ptr noundef nonnull align 8 dereferenceable(52), i32 noundef, i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4ufds10union_setsEii(ptr noundef nonnull align 8 dereferenceable(52), i32 noundef, i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt5tupleIJxiiEESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4ufdsD2Ev(ptr noundef nonnull align 8 dereferenceable(52)) 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 #4 = { 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 #5 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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"}


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