; LLVM IR from tangjz/acm-icpc :: 51nod (1432)

; 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::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 }
%"class.std::reverse_iterator" = type { %"struct.std::_Rb_tree_const_iterator" }

@n = external dso_local global i32, align 4
@m = external dso_local global i32, align 4
@ans = external dso_local global i32, align 4
@sp = external dso_local global %"class.std::multiset", align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::reverse_iterator", align 8
  %5 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %6 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %7 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %8 = alloca i32, align 4
  %9 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %10 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %11 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  store i32 0, ptr %1, align 4
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @n, ptr noundef @m)
  br label %13

13:                                               ; preds = %17, %0
  %14 = load i32, ptr @n, align 4, !tbaa !5
  %15 = add nsw i32 %14, -1
  store i32 %15, ptr @n, align 4, !tbaa !5
  %16 = icmp ne i32 %14, 0
  br i1 %16, label %17, label %21

17:                                               ; preds = %13
  %18 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef @ans)
  %19 = call ptr @_ZNSt8multisetIiSt4lessIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(48) @sp, ptr noundef nonnull align 4 dereferenceable(4) @ans)
  %20 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %2, i32 0, i32 0
  store ptr %19, ptr %20, align 8
  br label %13, !llvm.loop !9

21:                                               ; preds = %13
  store i32 0, ptr @ans, align 4, !tbaa !5
  br label %22

22:                                               ; preds = %53, %21
  %23 = call noundef i64 @_ZNKSt8multisetIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) @sp) #6
  %24 = icmp ugt i64 %23, 0
  br i1 %24, label %25, label %56

25:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #6
  call void @_ZNKSt8multisetIiSt4lessIiESaIiEE6rbeginEv(ptr dead_on_unwind writable sret(%"class.std::reverse_iterator") align 8 %4, ptr noundef nonnull align 8 dereferenceable(48) @sp) #6
  %26 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt16reverse_iteratorISt23_Rb_tree_const_iteratorIiEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %4)
  %27 = load i32, ptr %26, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #6
  store i32 %27, ptr %3, align 4, !tbaa !5
  %28 = call ptr @_ZNSt8multisetIiSt4lessIiESaIiEE4findERKi(ptr noundef nonnull align 8 dereferenceable(48) @sp, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %29 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %5, i32 0, i32 0
  store ptr %28, ptr %29, align 8
  %30 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %5, i32 0, i32 0
  %31 = load ptr, ptr %30, align 8
  %32 = call ptr @_ZNSt8multisetIiSt4lessIiESaIiEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIiE(ptr noundef nonnull align 8 dereferenceable(48) @sp, ptr %31)
  %33 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %6, i32 0, i32 0
  store ptr %32, ptr %33, align 8
  %34 = call noundef i64 @_ZNKSt8multisetIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) @sp) #6
  %35 = icmp ugt i64 %34, 0
  br i1 %35, label %36, label %52

36:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #6
  %37 = load i32, ptr @m, align 4, !tbaa !5
  %38 = load i32, ptr %3, align 4, !tbaa !5
  %39 = sub nsw i32 %37, %38
  store i32 %39, ptr %8, align 4, !tbaa !5
  %40 = call ptr @_ZNSt8multisetIiSt4lessIiESaIiEE11upper_boundERKi(ptr noundef nonnull align 8 dereferenceable(48) @sp, ptr noundef nonnull align 4 dereferenceable(4) %8)
  %41 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %7, i32 0, i32 0
  store ptr %40, ptr %41, align 8
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  %42 = call ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @sp) #6
  %43 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %9, i32 0, i32 0
  store ptr %42, ptr %43, align 8
  %44 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br i1 %44, label %45, label %51

45:                                               ; preds = %36
  %46 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIiEmmEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #6
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %10, ptr align 8 %46, i64 8, i1 false), !tbaa.struct !11
  %47 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %10, i32 0, i32 0
  %48 = load ptr, ptr %47, align 8
  %49 = call ptr @_ZNSt8multisetIiSt4lessIiESaIiEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIiE(ptr noundef nonnull align 8 dereferenceable(48) @sp, ptr %48)
  %50 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %11, i32 0, i32 0
  store ptr %49, ptr %50, align 8
  br label %51

51:                                               ; preds = %45, %36
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  br label %52

52:                                               ; preds = %51, %25
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  br label %53

53:                                               ; preds = %52
  %54 = load i32, ptr @ans, align 4, !tbaa !5
  %55 = add nsw i32 %54, 1
  store i32 %55, ptr @ans, align 4, !tbaa !5
  br label %22, !llvm.loop !14

56:                                               ; preds = %22
  %57 = load i32, ptr @ans, align 4, !tbaa !5
  %58 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i32 noundef %57)
  ret i32 0
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #1

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIiSt4lessIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt8multisetIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) #3 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNKSt8multisetIiSt4lessIiESaIiEE6rbeginEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(48)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt16reverse_iteratorISt23_Rb_tree_const_iteratorIiEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #4

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

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIiSt4lessIiESaIiEE4findERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIiSt4lessIiESaIiEE11upper_boundERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIiEmmEv(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

declare i32 @printf(ptr noundef, ...) #1

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { "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 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{i64 0, i64 8, !12}
!12 = !{!13, !13, i64 0}
!13 = !{!"any pointer", !7, i64 0}
!14 = distinct !{!14, !10}


; 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::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 }
%"class.std::reverse_iterator" = type { %"struct.std::_Rb_tree_const_iterator" }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@n = external dso_local global i32, align 4
@m = external dso_local global i32, align 4
@ans = external dso_local global i32, align 4
@sp = external dso_local global %"class.std::multiset", align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::reverse_iterator", 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
  %6 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @n, ptr noundef nonnull @m)
  %7 = load i32, ptr @n, align 4, !tbaa !5
  %8 = add nsw i32 %7, -1
  store i32 %8, ptr @n, align 4, !tbaa !5
  %.not7 = icmp eq i32 %7, 0
  br i1 %.not7, label %.preheader, label %.lr.ph

.preheader:                                       ; preds = %.lr.ph, %0
  store i32 0, ptr @ans, align 4, !tbaa !5
  %9 = tail call noundef i64 @_ZNKSt8multisetIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) @sp) #5
  %.not58 = icmp eq i64 %9, 0
  br i1 %.not58, label %._crit_edge, label %.lr.ph9

.lr.ph:                                           ; preds = %0, %.lr.ph
  %10 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull @ans)
  %11 = tail call ptr @_ZNSt8multisetIiSt4lessIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(48) @sp, ptr noundef nonnull align 4 dereferenceable(4) @ans)
  %12 = load i32, ptr @n, align 4, !tbaa !5
  %13 = add nsw i32 %12, -1
  store i32 %13, ptr @n, align 4, !tbaa !5
  %.not = icmp eq i32 %12, 0
  br i1 %.not, label %.preheader, label %.lr.ph, !llvm.loop !9

.lr.ph9:                                          ; preds = %.preheader, %30
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #5
  call void @_ZNKSt8multisetIiSt4lessIiESaIiEE6rbeginEv(ptr dead_on_unwind nonnull writable sret(%"class.std::reverse_iterator") align 8 %2, ptr noundef nonnull align 8 dereferenceable(48) @sp) #5
  %14 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt16reverse_iteratorISt23_Rb_tree_const_iteratorIiEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2)
  %15 = load i32, ptr %14, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  store i32 %15, ptr %1, align 4, !tbaa !5
  %16 = call ptr @_ZNSt8multisetIiSt4lessIiESaIiEE4findERKi(ptr noundef nonnull align 8 dereferenceable(48) @sp, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %17 = call ptr @_ZNSt8multisetIiSt4lessIiESaIiEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIiE(ptr noundef nonnull align 8 dereferenceable(48) @sp, ptr %16)
  %18 = call noundef i64 @_ZNKSt8multisetIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) @sp) #5
  %.not6 = icmp eq i64 %18, 0
  br i1 %.not6, label %30, label %19

19:                                               ; preds = %.lr.ph9
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #5
  %20 = load i32, ptr @m, align 4, !tbaa !5
  %21 = load i32, ptr %1, align 4, !tbaa !5
  %22 = sub nsw i32 %20, %21
  store i32 %22, ptr %4, align 4, !tbaa !5
  %23 = call ptr @_ZNSt8multisetIiSt4lessIiESaIiEE11upper_boundERKi(ptr noundef nonnull align 8 dereferenceable(48) @sp, ptr noundef nonnull align 4 dereferenceable(4) %4)
  store ptr %23, ptr %3, align 8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #5
  %24 = call ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @sp) #5
  store ptr %24, ptr %5, align 8
  %25 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  br i1 %25, label %26, label %29

26:                                               ; preds = %19
  %27 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIiEmmEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %.sroa.01.0.copyload = load ptr, ptr %27, align 8, !tbaa !11
  %28 = call ptr @_ZNSt8multisetIiSt4lessIiESaIiEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIiE(ptr noundef nonnull align 8 dereferenceable(48) @sp, ptr %.sroa.01.0.copyload)
  br label %29

29:                                               ; preds = %26, %19
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  br label %30

30:                                               ; preds = %29, %.lr.ph9
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #5
  %31 = load i32, ptr @ans, align 4, !tbaa !5
  %32 = add nsw i32 %31, 1
  store i32 %32, ptr @ans, align 4, !tbaa !5
  %33 = call noundef i64 @_ZNKSt8multisetIiSt4lessIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) @sp) #5
  %.not5 = icmp eq i64 %33, 0
  br i1 %.not5, label %._crit_edge, label %.lr.ph9, !llvm.loop !13

._crit_edge:                                      ; preds = %30, %.preheader
  %34 = load i32, ptr @ans, align 4, !tbaa !5
  %35 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i32 noundef %34)
  ret i32 0
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIiSt4lessIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_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 #3 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNKSt8multisetIiSt4lessIiESaIiEE6rbeginEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt16reverse_iteratorISt23_Rb_tree_const_iteratorIiEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) 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) #4

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

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIiSt4lessIiESaIiEE4findERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIiSt4lessIiESaIiEE11upper_boundERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt8multisetIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIiEmmEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nofree nounwind "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 = { 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { 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"}
!11 = !{!12, !12, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = distinct !{!13, !10}


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