; LLVM IR from kazunetakahashi/atcoder :: 2017/1007_DDCC2017 (C)

; 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 }

@N = external dso_local global i32, align 4
@C = external dso_local global i64, align 8
@L = external dso_local global [100010 x i64], align 16
@S = external dso_local global %"class.std::multiset", align 8
@infty = external dso_local global i64, 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 i32, align 4
  %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 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %7 = alloca i64, align 8
  %8 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %9 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %10 = alloca i64, align 8
  %11 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %12 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %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 %1, align 4
  %16 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  %17 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %16, ptr noundef nonnull align 8 dereferenceable(8) @C)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %18

18:                                               ; preds = %33, %0
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = load i32, ptr @N, align 4, !tbaa !5
  %21 = icmp slt i32 %19, %20
  br i1 %21, label %23, label %22

22:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %36

23:                                               ; preds = %18
  %24 = load i32, ptr %2, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds [100010 x i64], ptr @L, i64 0, i64 %25
  %27 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %26)
  %28 = load i32, ptr %2, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds [100010 x i64], ptr @L, i64 0, i64 %29
  %31 = call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48) @S, ptr noundef nonnull align 8 dereferenceable(8) %30)
  %32 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %3, i32 0, i32 0
  store ptr %31, ptr %32, align 8
  br label %33

33:                                               ; preds = %23
  %34 = load i32, ptr %2, align 4, !tbaa !5
  %35 = add nsw i32 %34, 1
  store i32 %35, ptr %2, align 4, !tbaa !5
  br label %18, !llvm.loop !9

36:                                               ; preds = %22
  %37 = load i64, ptr @C, align 8, !tbaa !11
  %38 = add nsw i64 %37, 10
  store i64 %38, ptr @infty, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #7
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %39

39:                                               ; preds = %78, %36
  %40 = call noundef zeroext i1 @_ZNKSt8multisetIxSt4lessIxESaIxEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(48) @S) #7
  %41 = xor i1 %40, true
  br i1 %41, label %42, label %79

42:                                               ; preds = %39
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #7
  %43 = call ptr @_ZNKSt8multisetIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @S) #7
  %44 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %5, i32 0, i32 0
  store ptr %43, ptr %44, align 8
  %45 = call ptr @_ZNSt23_Rb_tree_const_iteratorIxEmmEi(ptr noundef nonnull align 8 dereferenceable(8) %5, i32 noundef 0) #7
  %46 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %6, i32 0, i32 0
  store ptr %45, ptr %46, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #7
  %47 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #7
  %48 = load i64, ptr %47, align 8, !tbaa !11
  store i64 %48, ptr %7, align 8, !tbaa !11
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %8, ptr align 8 %5, i64 8, i1 false), !tbaa.struct !13
  %49 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %8, i32 0, i32 0
  %50 = load ptr, ptr %49, align 8
  %51 = call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIxE(ptr noundef nonnull align 8 dereferenceable(48) @S, ptr %50)
  %52 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %9, i32 0, i32 0
  store ptr %51, ptr %52, align 8
  %53 = load i32, ptr %4, align 4, !tbaa !5
  %54 = add nsw i32 %53, 1
  store i32 %54, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #7
  %55 = load i64, ptr @C, align 8, !tbaa !11
  %56 = load i64, ptr %7, align 8, !tbaa !11
  %57 = sub nsw i64 %55, %56
  %58 = sub nsw i64 %57, 1
  store i64 %58, ptr %10, align 8, !tbaa !11
  %59 = load i64, ptr %10, align 8, !tbaa !11
  %60 = icmp sgt i64 %59, 0
  br i1 %60, label %61, label %78

61:                                               ; preds = %42
  %62 = call noundef zeroext i1 @_ZNKSt8multisetIxSt4lessIxESaIxEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(48) @S) #7
  br i1 %62, label %78, label %63

63:                                               ; preds = %61
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #7
  %64 = call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE11upper_boundERKx(ptr noundef nonnull align 8 dereferenceable(48) @S, ptr noundef nonnull align 8 dereferenceable(8) %10)
  %65 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %11, i32 0, i32 0
  store ptr %64, ptr %65, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #7
  %66 = call ptr @_ZNKSt8multisetIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @S) #7
  %67 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %12, i32 0, i32 0
  store ptr %66, ptr %67, align 8
  %68 = call noundef zeroext i1 @_ZSteqRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(8) %12) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #7
  br i1 %68, label %69, label %70

69:                                               ; preds = %63
  br label %77

70:                                               ; preds = %63
  %71 = call ptr @_ZNSt23_Rb_tree_const_iteratorIxEmmEi(ptr noundef nonnull align 8 dereferenceable(8) %11, i32 noundef 0) #7
  %72 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %13, i32 0, i32 0
  store ptr %71, ptr %72, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %14, ptr align 8 %11, i64 8, i1 false), !tbaa.struct !13
  %73 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %14, i32 0, i32 0
  %74 = load ptr, ptr %73, align 8
  %75 = call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIxE(ptr noundef nonnull align 8 dereferenceable(48) @S, ptr %74)
  %76 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %15, i32 0, i32 0
  store ptr %75, ptr %76, align 8
  br label %77

77:                                               ; preds = %70, %69
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #7
  br label %78

78:                                               ; preds = %77, %61, %42
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #7
  br label %39, !llvm.loop !16

79:                                               ; preds = %39
  %80 = load i32, ptr %4, align 4, !tbaa !5
  %81 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %80)
  %82 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %81, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  %83 = load i32, ptr %1, align 4
  ret i32 %83
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #1

; 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)) #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48), 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) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt8multisetIxSt4lessIxESaIxEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(48)) #4 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorIxEmmEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #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)) #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIxSt4lessIxESaIxEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIxE(ptr noundef nonnull align 8 dereferenceable(48), ptr) #2 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 uwtable
declare dso_local ptr @_ZNSt8multisetIxSt4lessIxESaIxEE11upper_boundERKx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #2 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 = { "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!"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 = !{!"long long", !7, i64 0}
!13 = !{i64 0, i64 8, !14}
!14 = !{!15, !15, i64 0}
!15 = !{!"any pointer", !7, i64 0}
!16 = distinct !{!16, !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<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 i32, align 4
@C = external dso_local global i64, align 8
@L = external dso_local global [100010 x i64], align 16
@S = external dso_local global %"class.std::multiset", align 8
@infty = external dso_local local_unnamed_addr global i64, 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 %"struct.std::_Rb_tree_const_iterator", align 8
  %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 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  %6 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 8 dereferenceable(8) @C)
  %7 = load i32, ptr @N, align 4, !tbaa !5
  %8 = icmp sgt i32 %7, 0
  br i1 %8, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  %9 = load i64, ptr @C, align 8, !tbaa !9
  %10 = add nsw i64 %9, 10
  store i64 %10, ptr @infty, align 8, !tbaa !9
  %11 = tail call noundef zeroext i1 @_ZNKSt8multisetIxSt4lessIxESaIxEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(48) @S) #6
  br i1 %11, label %._crit_edge19, label %.lr.ph18

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %12 = getelementptr inbounds [100010 x i64], ptr @L, i64 0, i64 %indvars.iv
  %13 = 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) %12)
  %14 = tail call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48) @S, ptr noundef nonnull align 8 dereferenceable(8) %12)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %15 = load i32, ptr @N, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = icmp slt i64 %indvars.iv.next, %16
  br i1 %17, label %.lr.ph, label %._crit_edge, !llvm.loop !11

.lr.ph18:                                         ; preds = %._crit_edge, %38
  %.01416 = phi i32 [ %23, %38 ], [ 0, %._crit_edge ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  %18 = call ptr @_ZNKSt8multisetIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @S) #6
  store ptr %18, ptr %1, align 8
  %19 = call ptr @_ZNSt23_Rb_tree_const_iteratorIxEmmEi(ptr noundef nonnull align 8 dereferenceable(8) %1, i32 noundef 0) #6
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %1) #6
  %21 = load i64, ptr %20, align 8, !tbaa !9
  %.sroa.04.0.copyload = load ptr, ptr %1, align 8, !tbaa !13
  %22 = call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIxE(ptr noundef nonnull align 8 dereferenceable(48) @S, ptr %.sroa.04.0.copyload)
  %23 = add nuw nsw i32 %.01416, 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  %24 = load i64, ptr @C, align 8, !tbaa !9
  %25 = xor i64 %21, -1
  %26 = add i64 %24, %25
  store i64 %26, ptr %2, align 8, !tbaa !9
  %27 = icmp sgt i64 %26, 0
  br i1 %27, label %28, label %38

28:                                               ; preds = %.lr.ph18
  %29 = call noundef zeroext i1 @_ZNKSt8multisetIxSt4lessIxESaIxEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(48) @S) #6
  br i1 %29, label %38, label %30

30:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  %31 = call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE11upper_boundERKx(ptr noundef nonnull align 8 dereferenceable(48) @S, ptr noundef nonnull align 8 dereferenceable(8) %2)
  store ptr %31, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  %32 = call ptr @_ZNKSt8multisetIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @S) #6
  store ptr %32, ptr %4, align 8
  %33 = call noundef zeroext i1 @_ZSteqRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  br i1 %33, label %37, label %34

34:                                               ; preds = %30
  %35 = call ptr @_ZNSt23_Rb_tree_const_iteratorIxEmmEi(ptr noundef nonnull align 8 dereferenceable(8) %3, i32 noundef 0) #6
  %.sroa.01.0.copyload = load ptr, ptr %3, align 8, !tbaa !13
  %36 = call ptr @_ZNSt8multisetIxSt4lessIxESaIxEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIxE(ptr noundef nonnull align 8 dereferenceable(48) @S, ptr %.sroa.01.0.copyload)
  br label %37

37:                                               ; preds = %30, %34
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  br label %38

38:                                               ; preds = %37, %28, %.lr.ph18
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  %39 = call noundef zeroext i1 @_ZNKSt8multisetIxSt4lessIxESaIxEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(48) @S) #6
  br i1 %39, label %._crit_edge19, label %.lr.ph18, !llvm.loop !15

._crit_edge19:                                    ; preds = %38, %._crit_edge
  %.014.lcssa = phi i32 [ 0, %._crit_edge ], [ %23, %38 ]
  %40 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.014.lcssa)
  %41 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %40, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  ret i32 0
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1

; 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 #2 align 2

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

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt8multisetIxSt4lessIxESaIxEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #4 align 2

; 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 ptr @_ZNSt23_Rb_tree_const_iteratorIxEmmEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) 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 uwtable
declare dso_local ptr @_ZNSt8multisetIxSt4lessIxESaIxEE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIxE(ptr noundef nonnull align 8 dereferenceable(48), ptr) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multisetIxSt4lessIxESaIxEE11upper_boundERKx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqRKSt23_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 @_ZNKSt8multisetIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #4 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #1

; 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 #2 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 = { "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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !14, i64 0}
!14 = !{!"any pointer", !7, i64 0}
!15 = distinct !{!15, !12}


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