; LLVM IR from manishbisht/Competitive-Programming :: Codeforces/Codeforces Round #367 (Div. 2) (Vasiliy's Multiset)

; 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<long long, long long, std::_Identity<long long>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, long long, std::_Identity<long long>, std::less<long long>>::_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::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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }
%"struct.std::pair" = type { %"struct.std::_Rb_tree_const_iterator", %"struct.std::_Rb_tree_const_iterator" }

@n = external dso_local global i64, align 8
@i = external dso_local global i64, align 8
@a = external dso_local global i64, align 8
@temp = external dso_local global i64, align 8
@ans = external dso_local global i64, align 8
@c = external dso_local global i8, align 1
@v = external dso_local global %"class.std::multiset", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %4 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %5 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %6 = alloca %"struct.std::pair", align 8
  %7 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %8 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %9 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %10 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  store i32 0, ptr %1, align 4
  %11 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @n)
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #7
  store i64 0, ptr %2, align 8, !tbaa !5
  %12 = call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48) @v, ptr noundef nonnull align 8 dereferenceable(8) %2)
  %13 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %3, i32 0, i32 0
  store ptr %12, ptr %13, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #7
  store i64 0, ptr @i, align 8, !tbaa !5
  br label %14

14:                                               ; preds = %78, %0
  %15 = load i64, ptr @i, align 8, !tbaa !5
  %16 = load i64, ptr @n, align 8, !tbaa !5
  %17 = icmp slt i64 %15, %16
  br i1 %17, label %18, label %81

18:                                               ; preds = %14
  %19 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 1 dereferenceable(1) @c)
  %20 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %19, ptr noundef nonnull align 8 dereferenceable(8) @a)
  %21 = load i8, ptr @c, align 1, !tbaa !9
  %22 = sext i8 %21 to i32
  %23 = icmp eq i32 %22, 43
  br i1 %23, label %24, label %27

24:                                               ; preds = %18
  %25 = call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48) @v, ptr noundef nonnull align 8 dereferenceable(8) @a)
  %26 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %4, i32 0, i32 0
  store ptr %25, ptr %26, align 8
  br label %77

27:                                               ; preds = %18
  %28 = load i8, ptr @c, align 1, !tbaa !9
  %29 = sext i8 %28 to i32
  %30 = icmp eq i32 %29, 45
  br i1 %30, label %31, label %42

31:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 16, ptr %6) #7
  %32 = call { ptr, ptr } @_ZNSt8multisetIxSt4lessIxESaIxEE11equal_rangeERKx(ptr noundef nonnull align 8 dereferenceable(48) @v, ptr noundef nonnull align 8 dereferenceable(8) @a)
  %33 = getelementptr inbounds { ptr, ptr }, ptr %6, i32 0, i32 0
  %34 = extractvalue { ptr, ptr } %32, 0
  store ptr %34, ptr %33, align 8
  %35 = getelementptr inbounds { ptr, ptr }, ptr %6, i32 0, i32 1
  %36 = extractvalue { ptr, ptr } %32, 1
  store ptr %36, ptr %35, align 8
  %37 = getelementptr inbounds %"struct.std::pair", ptr %6, i32 0, i32 0
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %5, ptr align 8 %37, i64 8, i1 false), !tbaa.struct !10
  %38 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %5, i32 0, i32 0
  %39 = load ptr, ptr %38, align 8
  %40 = call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIxE(ptr noundef nonnull align 8 dereferenceable(48) @v, ptr %39)
  %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 16, ptr %6) #7
  br label %76

42:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #7
  %43 = call ptr @_ZNKSt8multisetIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @v) #7
  %44 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %8, i32 0, i32 0
  store ptr %43, ptr %44, align 8
  %45 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #7
  %46 = load i64, ptr %45, align 8, !tbaa !5
  store i64 %46, ptr @temp, align 8, !tbaa !5
  %47 = load i64, ptr @temp, align 8, !tbaa !5
  %48 = load i64, ptr @a, align 8, !tbaa !5
  %49 = xor i64 %47, %48
  store i64 %49, ptr @ans, align 8, !tbaa !5
  %50 = call ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEi(ptr noundef nonnull align 8 dereferenceable(8) %8, i32 noundef 0) #7
  %51 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %9, i32 0, i32 0
  store ptr %50, ptr %51, align 8
  br label %52

52:                                               ; preds = %70, %42
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #7
  %53 = call ptr @_ZNKSt8multisetIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @v) #7
  %54 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %10, i32 0, i32 0
  store ptr %53, ptr %54, align 8
  %55 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  br i1 %55, label %56, label %72

56:                                               ; preds = %52
  %57 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #7
  %58 = load i64, ptr %57, align 8, !tbaa !5
  store i64 %58, ptr @temp, align 8, !tbaa !5
  %59 = load i64, ptr @ans, align 8, !tbaa !5
  %60 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #7
  %61 = load i64, ptr %60, align 8, !tbaa !5
  %62 = load i64, ptr @a, align 8, !tbaa !5
  %63 = xor i64 %61, %62
  %64 = icmp slt i64 %59, %63
  br i1 %64, label %65, label %69

65:                                               ; preds = %56
  %66 = load i64, ptr @temp, align 8, !tbaa !5
  %67 = load i64, ptr @a, align 8, !tbaa !5
  %68 = xor i64 %66, %67
  store i64 %68, ptr @ans, align 8, !tbaa !5
  br label %69

69:                                               ; preds = %65, %56
  br label %70

70:                                               ; preds = %69
  %71 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #7
  br label %52, !llvm.loop !13

72:                                               ; preds = %52
  %73 = load i64, ptr @ans, align 8, !tbaa !5
  %74 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %73)
  %75 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %74, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #7
  br label %76

76:                                               ; preds = %72, %31
  br label %77

77:                                               ; preds = %76, %24
  br label %78

78:                                               ; preds = %77
  %79 = load i64, ptr @i, align 8, !tbaa !5
  %80 = add nsw i64 %79, 1
  store i64 %80, ptr @i, align 8, !tbaa !5
  br label %14, !llvm.loop !15

81:                                               ; preds = %14
  ret i32 0
}

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 1 dereferenceable(1)) #3

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIxSt4lessIxESaIxEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIxE(ptr noundef nonnull align 8 dereferenceable(48), ptr) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, ptr } @_ZNSt8multisetIxSt4lessIxESaIxEE11equal_rangeERKx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #1 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) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt8multisetIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt8multisetIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #5 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #1 align 2

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #6

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 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "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 nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { 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 #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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = !{i64 0, i64 8, !11}
!11 = !{!12, !12, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = distinct !{!15, !14}


; 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<long long, long long, std::_Identity<long long>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, long long, std::_Identity<long long>, std::less<long long>>::_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::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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@n = external dso_local global i64, align 8
@i = external dso_local local_unnamed_addr global i64, align 8
@a = external dso_local global i64, align 8
@temp = external dso_local local_unnamed_addr global i64, align 8
@ans = external dso_local local_unnamed_addr global i64, align 8
@c = external dso_local global i8, align 1
@v = external dso_local global %"class.std::multiset", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  %2 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %3 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %4 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @n)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  store i64 0, ptr %1, align 8, !tbaa !5
  %5 = call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48) @v, ptr noundef nonnull align 8 dereferenceable(8) %1)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  store i64 0, ptr @i, align 8, !tbaa !5
  %6 = load i64, ptr @n, align 8, !tbaa !5
  %7 = icmp sgt i64 %6, 0
  br i1 %7, label %.lr.ph7, label %._crit_edge8

.lr.ph7:                                          ; preds = %0, %44
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 1 dereferenceable(1) @c)
  %9 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef nonnull align 8 dereferenceable(8) @a)
  %10 = load i8, ptr @c, align 1, !tbaa !9
  switch i8 %10, label %17 [
    i8 43, label %11
    i8 45, label %13
  ]

11:                                               ; preds = %.lr.ph7
  %12 = call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48) @v, ptr noundef nonnull align 8 dereferenceable(8) @a)
  br label %44

13:                                               ; preds = %.lr.ph7
  %14 = call { ptr, ptr } @_ZNSt8multisetIxSt4lessIxESaIxEE11equal_rangeERKx(ptr noundef nonnull align 8 dereferenceable(48) @v, ptr noundef nonnull align 8 dereferenceable(8) @a)
  %15 = extractvalue { ptr, ptr } %14, 0
  %16 = call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIxE(ptr noundef nonnull align 8 dereferenceable(48) @v, ptr %15)
  br label %44

17:                                               ; preds = %.lr.ph7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  %18 = call ptr @_ZNKSt8multisetIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @v) #6
  store ptr %18, ptr %2, align 8
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #6
  %20 = load i64, ptr %19, align 8, !tbaa !5
  store i64 %20, ptr @temp, align 8, !tbaa !5
  %21 = load i64, ptr @a, align 8, !tbaa !5
  %22 = xor i64 %21, %20
  store i64 %22, ptr @ans, align 8, !tbaa !5
  %23 = call ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEi(ptr noundef nonnull align 8 dereferenceable(8) %2, i32 noundef 0) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  %24 = call ptr @_ZNKSt8multisetIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @v) #6
  store ptr %24, ptr %3, align 8
  %25 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  br i1 %25, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %17, %37
  %26 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #6
  %27 = load i64, ptr %26, align 8, !tbaa !5
  store i64 %27, ptr @temp, align 8, !tbaa !5
  %28 = load i64, ptr @ans, align 8, !tbaa !5
  %29 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #6
  %30 = load i64, ptr %29, align 8, !tbaa !5
  %31 = load i64, ptr @a, align 8, !tbaa !5
  %32 = xor i64 %31, %30
  %33 = icmp slt i64 %28, %32
  br i1 %33, label %34, label %37

34:                                               ; preds = %.lr.ph
  %35 = load i64, ptr @temp, align 8, !tbaa !5
  %36 = xor i64 %35, %31
  store i64 %36, ptr @ans, align 8, !tbaa !5
  br label %37

37:                                               ; preds = %.lr.ph, %34
  %38 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  %39 = call ptr @_ZNKSt8multisetIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @v) #6
  store ptr %39, ptr %3, align 8
  %40 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  br i1 %40, label %.lr.ph, label %._crit_edge, !llvm.loop !10

._crit_edge:                                      ; preds = %37, %17
  %41 = load i64, ptr @ans, align 8, !tbaa !5
  %42 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %41)
  %43 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %42, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  br label %44

44:                                               ; preds = %11, %._crit_edge, %13
  %45 = load i64, ptr @i, align 8, !tbaa !5
  %46 = add nsw i64 %45, 1
  store i64 %46, ptr @i, align 8, !tbaa !5
  %47 = load i64, ptr @n, align 8, !tbaa !5
  %48 = icmp slt i64 %46, %47
  br i1 %48, label %.lr.ph7, label %._crit_edge8, !llvm.loop !12

._crit_edge8:                                     ; preds = %44, %0
  ret i32 0
}

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIxSt4lessIxESaIxEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIxE(ptr noundef nonnull align 8 dereferenceable(48), ptr) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, ptr } @_ZNSt8multisetIxSt4lessIxESaIxEE11equal_rangeERKx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt8multisetIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(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 ptr @_ZNKSt8multisetIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #1 align 2

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #5

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

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

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


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