; LLVM IR from bqi343/cp-notebook :: Contests/USACO Solutions/2016-17/Jan 2017/Silver/17 Jan S1.ll (Z2oki)

; 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<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::multiset" = 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 }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

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

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z2oki(i32 noundef %0) #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::multiset", align 8
  %6 = alloca i32, align 4
  %7 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %8 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %12 = alloca i32, align 4
  %13 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %14 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %15 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 0, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 48, ptr %5) #4
  call void @_ZNSt8multisetIiSt4lessIiESaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %5) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %16

16:                                               ; preds = %52, %1
  %17 = load i32, ptr %6, align 4, !tbaa !5
  %18 = load i32, ptr @N, align 4, !tbaa !5
  %19 = icmp slt i32 %17, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %60

21:                                               ; preds = %16
  %22 = call noundef i64 @_ZNKSt8multisetIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %5) #4
  %23 = load i32, ptr %2, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = icmp eq i64 %22, %24
  br i1 %25, label %26, label %42

26:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %27 = call ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %5) #4
  %28 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %7, i32 0, i32 0
  store ptr %27, ptr %28, align 8
  %29 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt23_Rb_tree_const_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #4
  %30 = load i32, ptr %29, align 4, !tbaa !5
  store i32 %30, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  %31 = call ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %5) #4
  %32 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %8, i32 0, i32 0
  store ptr %31, ptr %32, align 8
  %33 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %8, i32 0, i32 0
  %34 = load ptr, ptr %33, align 8
  %35 = invoke ptr @_ZNSt8multisetIiSt4lessIiESaIiEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIiE(ptr noundef nonnull align 8 dereferenceable(48) %5, ptr %34)
          to label %36 unwind label %38

36:                                               ; preds = %26
  %37 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %11, i32 0, i32 0
  store ptr %35, ptr %37, align 8
  br label %42

38:                                               ; preds = %26
  %39 = landingpad { ptr, i32 }
          cleanup
  %40 = extractvalue { ptr, i32 } %39, 0
  store ptr %40, ptr %9, align 8
  %41 = extractvalue { ptr, i32 } %39, 1
  store i32 %41, ptr %10, align 4
  br label %59

42:                                               ; preds = %36, %21
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #4
  %43 = load i32, ptr %6, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @dance, i64 noundef %44) #4
  %46 = load i32, ptr %45, align 4, !tbaa !5
  %47 = load i32, ptr %4, align 4, !tbaa !5
  %48 = add nsw i32 %46, %47
  store i32 %48, ptr %12, align 4, !tbaa !5
  %49 = invoke ptr @_ZNSt8multisetIiSt4lessIiESaIiEE6insertEOi(ptr noundef nonnull align 8 dereferenceable(48) %5, ptr noundef nonnull align 4 dereferenceable(4) %12)
          to label %50 unwind label %55

50:                                               ; preds = %42
  %51 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %13, i32 0, i32 0
  store ptr %49, ptr %51, align 8
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  br label %52

52:                                               ; preds = %50
  %53 = load i32, ptr %6, align 4, !tbaa !5
  %54 = add nsw i32 %53, 1
  store i32 %54, ptr %6, align 4, !tbaa !5
  br label %16, !llvm.loop !9

55:                                               ; preds = %42
  %56 = landingpad { ptr, i32 }
          cleanup
  %57 = extractvalue { ptr, i32 } %56, 0
  store ptr %57, ptr %9, align 8
  %58 = extractvalue { ptr, i32 } %56, 1
  store i32 %58, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  br label %59

59:                                               ; preds = %55, %38
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %74

60:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #4
  %61 = call ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %5) #4
  %62 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %15, i32 0, i32 0
  store ptr %61, ptr %62, align 8
  %63 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %15, i32 0, i32 0
  %64 = load ptr, ptr %63, align 8
  %65 = invoke ptr @_ZSt4prevISt23_Rb_tree_const_iteratorIiEET_S2_NSt15iterator_traitsIS2_E15difference_typeE(ptr %64, i64 noundef 1)
          to label %66 unwind label %70

66:                                               ; preds = %60
  %67 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %14, i32 0, i32 0
  store ptr %65, ptr %67, align 8
  %68 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt23_Rb_tree_const_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %14) #4
  %69 = load i32, ptr %68, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #4
  call void @_ZNSt8multisetIiSt4lessIiESaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %5) #4
  call void @llvm.lifetime.end.p0(i64 48, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  ret i32 %69

70:                                               ; preds = %60
  %71 = landingpad { ptr, i32 }
          cleanup
  %72 = extractvalue { ptr, i32 } %71, 0
  store ptr %72, ptr %9, align 8
  %73 = extractvalue { ptr, i32 } %71, 1
  store i32 %73, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #4
  br label %74

74:                                               ; preds = %70, %59
  call void @_ZNSt8multisetIiSt4lessIiESaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %5) #4
  call void @llvm.lifetime.end.p0(i64 48, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  br label %75

75:                                               ; preds = %74
  %76 = load ptr, ptr %9, align 8
  %77 = load i32, ptr %10, align 4
  %78 = insertvalue { ptr, i32 } poison, ptr %76, 0
  %79 = insertvalue { ptr, i32 } %78, i32 %77, 1
  resume { ptr, i32 } %79
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt8multisetIiSt4lessIiESaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt8multisetIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt23_Rb_tree_const_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIiSt4lessIiESaIiEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIiE(ptr noundef nonnull align 8 dereferenceable(48), ptr) #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIiSt4lessIiESaIiEE6insertEOi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt4prevISt23_Rb_tree_const_iteratorIiEET_S2_NSt15iterator_traitsIS2_E15difference_typeE(ptr, i64 noundef) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt8multisetIiSt4lessIiESaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 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 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; 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<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::multiset" = 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 }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

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

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z2oki(i32 noundef %0) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::multiset", align 8
  %3 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %4 = alloca i32, align 4
  %5 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %2) #4
  call void @_ZNSt8multisetIiSt4lessIiESaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  %6 = load i32, ptr @N, align 4, !tbaa !5
  %7 = icmp sgt i32 %6, 0
  br i1 %7, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1
  %8 = sext i32 %0 to i64
  br label %11

._crit_edge:                                      ; preds = %27, %1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %9 = call ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  %10 = invoke ptr @_ZSt4prevISt23_Rb_tree_const_iteratorIiEET_S2_NSt15iterator_traitsIS2_E15difference_typeE(ptr %9, i64 noundef 1)
          to label %33 unwind label %36

11:                                               ; preds = %.lr.ph, %27
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %27 ]
  %.017 = phi i32 [ 0, %.lr.ph ], [ %.1, %27 ]
  %12 = call noundef i64 @_ZNKSt8multisetIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  %13 = icmp eq i64 %12, %8
  br i1 %13, label %14, label %22

14:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %15 = call ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  store ptr %15, ptr %3, align 8
  %16 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt23_Rb_tree_const_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #4
  %17 = load i32, ptr %16, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  %18 = call ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  %19 = invoke ptr @_ZNSt8multisetIiSt4lessIiESaIiEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIiE(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr %18)
          to label %22 unwind label %20

20:                                               ; preds = %14
  %21 = landingpad { ptr, i32 }
          cleanup
  br label %38

22:                                               ; preds = %14, %11
  %.1 = phi i32 [ %.017, %11 ], [ %17, %14 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #4
  %23 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @dance, i64 noundef %indvars.iv) #4
  %24 = load i32, ptr %23, align 4, !tbaa !5
  %25 = add nsw i32 %24, %.1
  store i32 %25, ptr %4, align 4, !tbaa !5
  %26 = invoke ptr @_ZNSt8multisetIiSt4lessIiESaIiEE6insertEOi(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %27 unwind label %31

27:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %28 = load i32, ptr @N, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = icmp slt i64 %indvars.iv.next, %29
  br i1 %30, label %11, label %._crit_edge, !llvm.loop !9

31:                                               ; preds = %22
  %32 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  br label %38

33:                                               ; preds = %._crit_edge
  store ptr %10, ptr %5, align 8
  %34 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt23_Rb_tree_const_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  %35 = load i32, ptr %34, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  call void @_ZNSt8multisetIiSt4lessIiESaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %2) #4
  ret i32 %35

36:                                               ; preds = %._crit_edge
  %37 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  br label %38

38:                                               ; preds = %20, %31, %36
  %.pn.pn = phi { ptr, i32 } [ %37, %36 ], [ %32, %31 ], [ %21, %20 ]
  call void @_ZNSt8multisetIiSt4lessIiESaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %2) #4
  resume { ptr, i32 } %.pn.pn
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt8multisetIiSt4lessIiESaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt8multisetIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt23_Rb_tree_const_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIiSt4lessIiESaIiEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIiE(ptr noundef nonnull align 8 dereferenceable(48), ptr) local_unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIiSt4lessIiESaIiEE6insertEOi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt4prevISt23_Rb_tree_const_iteratorIiEET_S2_NSt15iterator_traitsIS2_E15difference_typeE(ptr, i64 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt8multisetIiSt4lessIiESaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 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 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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