; LLVM IR from VastoLorde95/Competitive-Programming :: Codeforces/8VC Elimination 2016/Problem B (B)

; 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::basic_ostream" = type { ptr, %"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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<char, char, std::_Identity<char>, std::less<char>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<char, char, std::_Identity<char>, std::less<char>>::_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" }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@n = external dso_local global i32, align 4
@_Z1sB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@res = external dso_local global %"class.std::set", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 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)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z2goiii(i32 noundef, i32 noundef, i32 noundef) #0

; 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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %7 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  store i32 0, ptr %1, align 4
  %8 = 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)
  %9 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  store i32 0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #6
  store i32 0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #6
  store i32 0, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #6
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %10

10:                                               ; preds = %40, %0
  %11 = load i32, ptr %5, align 4, !tbaa !5
  %12 = load i32, ptr @n, align 4, !tbaa !5
  %13 = icmp slt i32 %11, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  br label %43

15:                                               ; preds = %10
  %16 = load i32, ptr %5, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %17)
  %19 = load i8, ptr %18, align 1, !tbaa !9
  %20 = sext i8 %19 to i32
  %21 = icmp eq i32 %20, 82
  br i1 %21, label %22, label %25

22:                                               ; preds = %15
  %23 = load i32, ptr %2, align 4, !tbaa !5
  %24 = add nsw i32 %23, 1
  store i32 %24, ptr %2, align 4, !tbaa !5
  br label %39

25:                                               ; preds = %15
  %26 = load i32, ptr %5, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %27)
  %29 = load i8, ptr %28, align 1, !tbaa !9
  %30 = sext i8 %29 to i32
  %31 = icmp eq i32 %30, 71
  br i1 %31, label %32, label %35

32:                                               ; preds = %25
  %33 = load i32, ptr %3, align 4, !tbaa !5
  %34 = add nsw i32 %33, 1
  store i32 %34, ptr %3, align 4, !tbaa !5
  br label %38

35:                                               ; preds = %25
  %36 = load i32, ptr %4, align 4, !tbaa !5
  %37 = add nsw i32 %36, 1
  store i32 %37, ptr %4, align 4, !tbaa !5
  br label %38

38:                                               ; preds = %35, %32
  br label %39

39:                                               ; preds = %38, %22
  br label %40

40:                                               ; preds = %39
  %41 = load i32, ptr %5, align 4, !tbaa !5
  %42 = add nsw i32 %41, 1
  store i32 %42, ptr %5, align 4, !tbaa !5
  br label %10, !llvm.loop !10

43:                                               ; preds = %14
  %44 = load i32, ptr %2, align 4, !tbaa !5
  %45 = load i32, ptr %3, align 4, !tbaa !5
  %46 = load i32, ptr %4, align 4, !tbaa !5
  call void @_Z2goiii(i32 noundef %44, i32 noundef %45, i32 noundef %46)
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  %47 = call ptr @_ZNKSt3setIcSt4lessIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @res) #6
  %48 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %6, i32 0, i32 0
  store ptr %47, ptr %48, align 8
  br label %49

49:                                               ; preds = %58, %43
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  %50 = call ptr @_ZNKSt3setIcSt4lessIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @res) #6
  %51 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %7, i32 0, i32 0
  store ptr %50, ptr %51, align 8
  %52 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIcES2_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  br i1 %52, label %54, label %53

53:                                               ; preds = %49
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  br label %60

54:                                               ; preds = %49
  %55 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt23_Rb_tree_const_iteratorIcEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #6
  %56 = load i8, ptr %55, align 1, !tbaa !9
  %57 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext %56)
  br label %58

58:                                               ; preds = %54
  %59 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIcEppEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #6
  br label %49, !llvm.loop !12

60:                                               ; preds = %53
  %61 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  ret i32 0
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #4

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

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIcSt4lessIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIcES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIcSt4lessIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #5 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt23_Rb_tree_const_iteratorIcEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIcEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #5 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 = { 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { mustprogress 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 = { 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 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


; 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::basic_ostream" = type { ptr, %"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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<char, char, std::_Identity<char>, std::less<char>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<char, char, std::_Identity<char>, std::less<char>>::_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" }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@n = external dso_local global i32, align 4
@_Z1sB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@res = external dso_local global %"class.std::set", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8

; 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 #0 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)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z2goiii(i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

; 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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 {
  %1 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %2 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %3 = 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)
  %4 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) %3, ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11)
  %5 = load i32, ptr @n, align 4, !tbaa !5
  %6 = icmp sgt i32 %5, 0
  br i1 %6, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %23, %0
  %.013.lcssa = phi i32 [ 0, %0 ], [ %.114, %23 ]
  %.011.lcssa = phi i32 [ 0, %0 ], [ %.112, %23 ]
  %.010.lcssa = phi i32 [ 0, %0 ], [ %.1, %23 ]
  tail call void @_Z2goiii(i32 noundef %.013.lcssa, i32 noundef %.011.lcssa, i32 noundef %.010.lcssa)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  %7 = tail call ptr @_ZNKSt3setIcSt4lessIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @res) #6
  store ptr %7, ptr %1, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  %8 = tail call ptr @_ZNKSt3setIcSt4lessIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @res) #6
  store ptr %8, ptr %2, align 8
  %9 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIcES2_(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  br i1 %9, label %.lr.ph22, label %._crit_edge23

.lr.ph:                                           ; preds = %0, %23
  %indvars.iv = phi i64 [ %indvars.iv.next, %23 ], [ 0, %0 ]
  %.01017 = phi i32 [ %.1, %23 ], [ 0, %0 ]
  %.01116 = phi i32 [ %.112, %23 ], [ 0, %0 ]
  %.01315 = phi i32 [ %.114, %23 ], [ 0, %0 ]
  %10 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %indvars.iv)
  %11 = load i8, ptr %10, align 1, !tbaa !9
  %12 = icmp eq i8 %11, 82
  br i1 %12, label %13, label %15

13:                                               ; preds = %.lr.ph
  %14 = add nsw i32 %.01315, 1
  br label %23

15:                                               ; preds = %.lr.ph
  %16 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %indvars.iv)
  %17 = load i8, ptr %16, align 1, !tbaa !9
  %18 = icmp eq i8 %17, 71
  br i1 %18, label %19, label %21

19:                                               ; preds = %15
  %20 = add nsw i32 %.01116, 1
  br label %23

21:                                               ; preds = %15
  %22 = add nsw i32 %.01017, 1
  br label %23

23:                                               ; preds = %13, %21, %19
  %.114 = phi i32 [ %14, %13 ], [ %.01315, %19 ], [ %.01315, %21 ]
  %.112 = phi i32 [ %.01116, %13 ], [ %20, %19 ], [ %.01116, %21 ]
  %.1 = phi i32 [ %.01017, %13 ], [ %.01017, %19 ], [ %22, %21 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %24 = load i32, ptr @n, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = icmp slt i64 %indvars.iv.next, %25
  br i1 %26, label %.lr.ph, label %._crit_edge, !llvm.loop !10

._crit_edge23:                                    ; preds = %.lr.ph22, %._crit_edge
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  %27 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  ret i32 0

.lr.ph22:                                         ; preds = %._crit_edge, %.lr.ph22
  %28 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt23_Rb_tree_const_iteratorIcEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %1) #6
  %29 = load i8, ptr %28, align 1, !tbaa !9
  %30 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext %29)
  %31 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIcEppEv(ptr noundef nonnull align 8 dereferenceable(8) %1) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  %32 = call ptr @_ZNKSt3setIcSt4lessIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @res) #6
  store ptr %32, ptr %2, align 8
  %33 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIcES2_(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  br i1 %33, label %.lr.ph22, label %._crit_edge23, !llvm.loop !12
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #4

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 #4

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIcSt4lessIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIcES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIcSt4lessIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #5 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt23_Rb_tree_const_iteratorIcEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIcEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #5 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 = { 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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { mustprogress 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 = { 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 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


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