; LLVM IR from upupming/algorithm :: codeforces/1466 (a)

; 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_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" }
%"class.std::unordered_set" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"struct.std::pair" = type <{ %"struct.std::__detail::_Node_iterator", i8, [7 x i8] }>
%"struct.std::__detail::_Node_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }

@t = external dso_local global i32, align 4
@x = external dso_local global [100 x i32], align 16
@n = external dso_local global i32, align 4
@_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 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::unordered_set", align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca %"struct.std::pair", align 8
  store i32 0, ptr %1, align 4
  %10 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @t)
  br label %11

11:                                               ; preds = %76, %0
  %12 = load i32, ptr @t, align 4, !tbaa !5
  %13 = add nsw i32 %12, -1
  store i32 %13, ptr @t, align 4, !tbaa !5
  %14 = icmp ne i32 %12, 0
  br i1 %14, label %15, label %78

15:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 56, ptr %2) #8
  call void @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %2) #8
  %16 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
          to label %17 unwind label %23

17:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #8
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %18

18:                                               ; preds = %67, %17
  %19 = load i32, ptr %5, align 4, !tbaa !5
  %20 = load i32, ptr @n, align 4, !tbaa !5
  %21 = icmp slt i32 %19, %20
  br i1 %21, label %27, label %22

22:                                               ; preds = %18
  store i32 4, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #8
  br label %71

23:                                               ; preds = %74, %71, %15
  %24 = landingpad { ptr, i32 }
          cleanup
  %25 = extractvalue { ptr, i32 } %24, 0
  store ptr %25, ptr %3, align 8
  %26 = extractvalue { ptr, i32 } %24, 1
  store i32 %26, ptr %4, align 4
  br label %77

27:                                               ; preds = %18
  %28 = load i32, ptr %5, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds [100 x i32], ptr @x, i64 0, i64 %29
  %31 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %30)
          to label %32 unwind label %38

32:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #8
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %33

33:                                               ; preds = %59, %32
  %34 = load i32, ptr %7, align 4, !tbaa !5
  %35 = load i32, ptr %5, align 4, !tbaa !5
  %36 = icmp slt i32 %34, %35
  br i1 %36, label %42, label %37

37:                                               ; preds = %33
  store i32 7, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #8
  br label %66

38:                                               ; preds = %27
  %39 = landingpad { ptr, i32 }
          cleanup
  %40 = extractvalue { ptr, i32 } %39, 0
  store ptr %40, ptr %3, align 8
  %41 = extractvalue { ptr, i32 } %39, 1
  store i32 %41, ptr %4, align 4
  br label %70

42:                                               ; preds = %33
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #8
  %43 = load i32, ptr %5, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds [100 x i32], ptr @x, i64 0, i64 %44
  %46 = load i32, ptr %45, align 4, !tbaa !5
  %47 = load i32, ptr %7, align 4, !tbaa !5
  %48 = sext i32 %47 to i64
  %49 = getelementptr inbounds [100 x i32], ptr @x, i64 0, i64 %48
  %50 = load i32, ptr %49, align 4, !tbaa !5
  %51 = sub nsw i32 %46, %50
  %52 = call i32 @llvm.abs.i32(i32 %51, i1 true)
  store i32 %52, ptr %8, align 4, !tbaa !5
  %53 = invoke { ptr, i8 } @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE6insertEOi(ptr noundef nonnull align 8 dereferenceable(56) %2, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %54 unwind label %62

54:                                               ; preds = %42
  %55 = getelementptr inbounds { ptr, i8 }, ptr %9, i32 0, i32 0
  %56 = extractvalue { ptr, i8 } %53, 0
  store ptr %56, ptr %55, align 8
  %57 = getelementptr inbounds { ptr, i8 }, ptr %9, i32 0, i32 1
  %58 = extractvalue { ptr, i8 } %53, 1
  store i8 %58, ptr %57, align 8
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #8
  br label %59

59:                                               ; preds = %54
  %60 = load i32, ptr %7, align 4, !tbaa !5
  %61 = add nsw i32 %60, 1
  store i32 %61, ptr %7, align 4, !tbaa !5
  br label %33, !llvm.loop !9

62:                                               ; preds = %42
  %63 = landingpad { ptr, i32 }
          cleanup
  %64 = extractvalue { ptr, i32 } %63, 0
  store ptr %64, ptr %3, align 8
  %65 = extractvalue { ptr, i32 } %63, 1
  store i32 %65, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #8
  br label %70

66:                                               ; preds = %37
  br label %67

67:                                               ; preds = %66
  %68 = load i32, ptr %5, align 4, !tbaa !5
  %69 = add nsw i32 %68, 1
  store i32 %69, ptr %5, align 4, !tbaa !5
  br label %18, !llvm.loop !11

70:                                               ; preds = %62, %38
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #8
  br label %77

71:                                               ; preds = %22
  %72 = call noundef i64 @_ZNKSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(56) %2) #8
  %73 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %72)
          to label %74 unwind label %23

74:                                               ; preds = %71
  %75 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %73, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %76 unwind label %23

76:                                               ; preds = %74
  call void @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %2) #8
  call void @llvm.lifetime.end.p0(i64 56, ptr %2) #8
  br label %11, !llvm.loop !12

77:                                               ; preds = %70, %23
  call void @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %2) #8
  call void @llvm.lifetime.end.p0(i64 56, ptr %2) #8
  br label %79

78:                                               ; preds = %11
  ret i32 0

79:                                               ; preds = %77
  %80 = load ptr, ptr %3, align 8
  %81 = load i32, ptr %4, align 4
  %82 = insertvalue { ptr, i32 } poison, ptr %80, 0
  %83 = insertvalue { ptr, i32 } %82, i32 %81, 1
  resume { ptr, 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE6insertEOi(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) #4 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.abs.i32(i32, i1 immarg) #5

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(56)) #3 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) #4 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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #7 align 2

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 nosync nounwind speculatable willreturn memory(none) }
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 = { inlinehint 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 #8 = { 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 = distinct !{!11, !10}
!12 = distinct !{!12, !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::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" }
%"class.std::unordered_set" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }

@t = external dso_local global i32, align 4
@x = external dso_local global [100 x i32], align 16
@n = external dso_local global i32, align 4
@_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 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::unordered_set", align 8
  %2 = alloca i32, align 4
  %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) @t)
  %4 = load i32, ptr @t, align 4, !tbaa !5
  %5 = add nsw i32 %4, -1
  store i32 %5, ptr @t, align 4, !tbaa !5
  %.not20 = icmp eq i32 %4, 0
  br i1 %.not20, label %._crit_edge23, label %.lr.ph22

.lr.ph22:                                         ; preds = %0, %31
  call void @llvm.lifetime.start.p0(i64 56, ptr nonnull %1) #8
  call void @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %1) #8
  %6 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
          to label %.preheader15 unwind label %11

.preheader15:                                     ; preds = %.lr.ph22
  %7 = load i32, ptr @n, align 4, !tbaa !5
  %8 = icmp sgt i32 %7, 0
  br i1 %8, label %.lr.ph18, label %._crit_edge19

._crit_edge19:                                    ; preds = %._crit_edge, %.preheader15
  %9 = call noundef i64 @_ZNKSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(56) %1) #8
  %10 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %9)
          to label %29 unwind label %11

11:                                               ; preds = %29, %._crit_edge19, %.lr.ph22
  %12 = landingpad { ptr, i32 }
          cleanup
  br label %34

.lr.ph18:                                         ; preds = %.preheader15, %._crit_edge
  %indvars.iv26 = phi i64 [ %indvars.iv.next27, %._crit_edge ], [ 0, %.preheader15 ]
  %13 = getelementptr inbounds [100 x i32], ptr @x, i64 0, i64 %indvars.iv26
  %14 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %13)
          to label %.preheader unwind label %18

.preheader:                                       ; preds = %.lr.ph18
  %.not24 = icmp eq i64 %indvars.iv26, 0
  br i1 %.not24, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %26, %.preheader
  %indvars.iv.next27 = add nuw nsw i64 %indvars.iv26, 1
  %15 = load i32, ptr @n, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = icmp slt i64 %indvars.iv.next27, %16
  br i1 %17, label %.lr.ph18, label %._crit_edge19, !llvm.loop !9

18:                                               ; preds = %.lr.ph18
  %19 = landingpad { ptr, i32 }
          cleanup
  br label %34

.lr.ph:                                           ; preds = %.preheader, %26
  %indvars.iv = phi i64 [ %indvars.iv.next, %26 ], [ 0, %.preheader ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #8
  %20 = load i32, ptr %13, align 4, !tbaa !5
  %21 = getelementptr inbounds [100 x i32], ptr @x, i64 0, i64 %indvars.iv
  %22 = load i32, ptr %21, align 4, !tbaa !5
  %23 = sub nsw i32 %20, %22
  %24 = call i32 @llvm.abs.i32(i32 %23, i1 true)
  store i32 %24, ptr %2, align 4, !tbaa !5
  %25 = invoke { ptr, i8 } @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE6insertEOi(ptr noundef nonnull align 8 dereferenceable(56) %1, ptr noundef nonnull align 4 dereferenceable(4) %2)
          to label %26 unwind label %27

26:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #8
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %indvars.iv26
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !11

27:                                               ; preds = %.lr.ph
  %28 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #8
  br label %34

29:                                               ; preds = %._crit_edge19
  %30 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %31 unwind label %11

31:                                               ; preds = %29
  call void @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %1) #8
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %1) #8
  %32 = load i32, ptr @t, align 4, !tbaa !5
  %33 = add nsw i32 %32, -1
  store i32 %33, ptr @t, align 4, !tbaa !5
  %.not = icmp eq i32 %32, 0
  br i1 %.not, label %._crit_edge23, label %.lr.ph22, !llvm.loop !12

34:                                               ; preds = %18, %27, %11
  %.pn.pn = phi { ptr, i32 } [ %12, %11 ], [ %28, %27 ], [ %19, %18 ]
  call void @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %1) #8
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %1) #8
  resume { ptr, i32 } %.pn.pn

._crit_edge23:                                    ; preds = %31, %0
  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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE6insertEOi(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.abs.i32(i32, i1 immarg) #5

; 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 uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #3 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 #4 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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #7 align 2

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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = { inlinehint 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 #8 = { 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 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


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