; LLVM IR from eyangch/competitive-programming :: Codeforces/1985 (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::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::set" = 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 }
%"struct.std::pair" = type <{ %"struct.std::_Rb_tree_const_iterator", i8, [7 x i8] }>
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@T = external dso_local global i64, align 8
@N = external dso_local global i64, align 8
@A = external dso_local global [200000 x i64], align 16
@_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 i64, align 8
  %3 = alloca %"class.std::set", align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca %"struct.std::pair", align 8
  store i32 0, ptr %1, align 4
  %11 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %12 = getelementptr i8, ptr %11, i64 -24
  %13 = load i64, ptr %12, align 8
  %14 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %13
  %15 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %14, ptr noundef null)
  %16 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %17 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @T)
  br label %18

18:                                               ; preds = %79, %0
  %19 = load i64, ptr @T, align 8, !tbaa !8
  %20 = add nsw i64 %19, -1
  store i64 %20, ptr @T, align 8, !tbaa !8
  %21 = icmp ne i64 %19, 0
  br i1 %21, label %22, label %85

22:                                               ; preds = %18
  %23 = 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) #6
  store i64 0, ptr %2, align 8, !tbaa !8
  br label %24

24:                                               ; preds = %33, %22
  %25 = load i64, ptr %2, align 8, !tbaa !8
  %26 = load i64, ptr @N, align 8, !tbaa !8
  %27 = icmp slt i64 %25, %26
  br i1 %27, label %29, label %28

28:                                               ; preds = %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  br label %36

29:                                               ; preds = %24
  %30 = load i64, ptr %2, align 8, !tbaa !8
  %31 = getelementptr inbounds [200000 x i64], ptr @A, i64 0, i64 %30
  %32 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %31)
  br label %33

33:                                               ; preds = %29
  %34 = load i64, ptr %2, align 8, !tbaa !8
  %35 = add nsw i64 %34, 1
  store i64 %35, ptr %2, align 8, !tbaa !8
  br label %24, !llvm.loop !11

36:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 48, ptr %3) #6
  call void @_ZNSt3setIxSt4lessIxESaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #6
  store i64 0, ptr %4, align 8, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #6
  store i64 0, ptr %5, align 8, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  store i64 0, ptr %6, align 8, !tbaa !8
  br label %37

37:                                               ; preds = %62, %36
  %38 = load i64, ptr %6, align 8, !tbaa !8
  %39 = load i64, ptr @N, align 8, !tbaa !8
  %40 = icmp slt i64 %38, %39
  br i1 %40, label %42, label %41

41:                                               ; preds = %37
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  br label %74

42:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  %43 = load i64, ptr %6, align 8, !tbaa !8
  %44 = getelementptr inbounds [200000 x i64], ptr @A, i64 0, i64 %43
  %45 = load i64, ptr %44, align 8, !tbaa !8
  %46 = mul nsw i64 %45, 2
  store i64 %46, ptr %7, align 8, !tbaa !8
  %47 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %48 unwind label %65

48:                                               ; preds = %42
  %49 = getelementptr inbounds { ptr, i8 }, ptr %10, i32 0, i32 0
  %50 = extractvalue { ptr, i8 } %47, 0
  store ptr %50, ptr %49, align 8
  %51 = getelementptr inbounds { ptr, i8 }, ptr %10, i32 0, i32 1
  %52 = extractvalue { ptr, i8 } %47, 1
  store i8 %52, ptr %51, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  %53 = load i64, ptr %6, align 8, !tbaa !8
  %54 = getelementptr inbounds [200000 x i64], ptr @A, i64 0, i64 %53
  %55 = load i64, ptr %54, align 8, !tbaa !8
  %56 = load i64, ptr %4, align 8, !tbaa !8
  %57 = add nsw i64 %56, %55
  store i64 %57, ptr %4, align 8, !tbaa !8
  %58 = invoke noundef i64 @_ZNKSt3setIxSt4lessIxESaIxEE5countERKx(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %59 unwind label %69

59:                                               ; preds = %48
  %60 = load i64, ptr %5, align 8, !tbaa !8
  %61 = add i64 %60, %58
  store i64 %61, ptr %5, align 8, !tbaa !8
  br label %62

62:                                               ; preds = %59
  %63 = load i64, ptr %6, align 8, !tbaa !8
  %64 = add nsw i64 %63, 1
  store i64 %64, ptr %6, align 8, !tbaa !8
  br label %37, !llvm.loop !13

65:                                               ; preds = %42
  %66 = landingpad { ptr, i32 }
          cleanup
  %67 = extractvalue { ptr, i32 } %66, 0
  store ptr %67, ptr %8, align 8
  %68 = extractvalue { ptr, i32 } %66, 1
  store i32 %68, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  br label %73

69:                                               ; preds = %48
  %70 = landingpad { ptr, i32 }
          cleanup
  %71 = extractvalue { ptr, i32 } %70, 0
  store ptr %71, ptr %8, align 8
  %72 = extractvalue { ptr, i32 } %70, 1
  store i32 %72, ptr %9, align 4
  br label %73

73:                                               ; preds = %69, %65
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  br label %84

74:                                               ; preds = %41
  %75 = load i64, ptr %5, align 8, !tbaa !8
  %76 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %75)
          to label %77 unwind label %80

77:                                               ; preds = %74
  %78 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %76, i8 noundef signext 10)
          to label %79 unwind label %80

79:                                               ; preds = %77
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #6
  call void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr %3) #6
  br label %18, !llvm.loop !14

80:                                               ; preds = %77, %74
  %81 = landingpad { ptr, i32 }
          cleanup
  %82 = extractvalue { ptr, i32 } %81, 0
  store ptr %82, ptr %8, align 8
  %83 = extractvalue { ptr, i32 } %81, 1
  store i32 %83, ptr %9, align 4
  br label %84

84:                                               ; preds = %80, %73
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #6
  call void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr %3) #6
  br label %87

85:                                               ; preds = %18
  %86 = load i32, ptr %1, align 4
  ret i32 %86

87:                                               ; preds = %84
  %88 = load ptr, ptr %8, align 8
  %89 = load i32, ptr %9, align 4
  %90 = insertvalue { ptr, i32 } poison, ptr %88, 0
  %91 = insertvalue { ptr, i32 } %90, i32 %89, 1
  resume { ptr, i32 } %91
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #1 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #2

; 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)) #3 align 2

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIxSt4lessIxESaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt3setIxSt4lessIxESaIxEE5countERKx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #3 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) #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 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 = { 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 #2 = { "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 uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long long", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}


; 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::set" = 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 }

@T = external dso_local global i64, align 8
@N = external dso_local global i64, align 8
@A = external dso_local global [200000 x i64], align 16
@_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::set", align 8
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %5 = getelementptr i8, ptr %4, i64 -24
  %6 = load i64, ptr %5, align 8
  %7 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %6
  %8 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %7, ptr noundef null)
  %9 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %10 = 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) @T)
  %11 = load i64, ptr @T, align 8, !tbaa !8
  %12 = add nsw i64 %11, -1
  store i64 %12, ptr @T, align 8, !tbaa !8
  %.not26 = icmp eq i64 %11, 0
  br i1 %.not26, label %._crit_edge29, label %.lr.ph28

.lr.ph28:                                         ; preds = %0, %44
  %13 = 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)
  %14 = load i64, ptr @N, align 8, !tbaa !8
  %15 = icmp sgt i64 %14, 0
  br i1 %15, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.lr.ph28
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %1) #6
  call void @_ZNSt3setIxSt4lessIxESaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %1) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  store i64 0, ptr %2, align 8, !tbaa !8
  %16 = load i64, ptr @N, align 8, !tbaa !8
  %17 = icmp sgt i64 %16, 0
  br i1 %17, label %.lr.ph24, label %._crit_edge25

.lr.ph:                                           ; preds = %.lr.ph28, %.lr.ph
  %.020 = phi i64 [ %20, %.lr.ph ], [ 0, %.lr.ph28 ]
  %18 = getelementptr inbounds [200000 x i64], ptr @A, i64 0, i64 %.020
  %19 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %18)
  %20 = add nuw nsw i64 %.020, 1
  %21 = load i64, ptr @N, align 8, !tbaa !8
  %22 = icmp slt i64 %20, %21
  br i1 %22, label %.lr.ph, label %._crit_edge, !llvm.loop !11

._crit_edge25:                                    ; preds = %33, %._crit_edge
  %.011.lcssa = phi i64 [ 0, %._crit_edge ], [ %34, %33 ]
  %23 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %.011.lcssa)
          to label %42 unwind label %47

.lr.ph24:                                         ; preds = %._crit_edge, %33
  %.01122 = phi i64 [ %34, %33 ], [ 0, %._crit_edge ]
  %.01521 = phi i64 [ %35, %33 ], [ 0, %._crit_edge ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  %24 = getelementptr inbounds [200000 x i64], ptr @A, i64 0, i64 %.01521
  %25 = load i64, ptr %24, align 8, !tbaa !8
  %26 = shl nsw i64 %25, 1
  store i64 %26, ptr %3, align 8, !tbaa !8
  %27 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48) %1, ptr noundef nonnull align 8 dereferenceable(8) %3)
          to label %28 unwind label %38

28:                                               ; preds = %.lr.ph24
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  %29 = load i64, ptr %24, align 8, !tbaa !8
  %30 = load i64, ptr %2, align 8, !tbaa !8
  %31 = add nsw i64 %30, %29
  store i64 %31, ptr %2, align 8, !tbaa !8
  %32 = invoke noundef i64 @_ZNKSt3setIxSt4lessIxESaIxEE5countERKx(ptr noundef nonnull align 8 dereferenceable(48) %1, ptr noundef nonnull align 8 dereferenceable(8) %2)
          to label %33 unwind label %40

33:                                               ; preds = %28
  %34 = add i64 %32, %.01122
  %35 = add nuw nsw i64 %.01521, 1
  %36 = load i64, ptr @N, align 8, !tbaa !8
  %37 = icmp slt i64 %35, %36
  br i1 %37, label %.lr.ph24, label %._crit_edge25, !llvm.loop !13

38:                                               ; preds = %.lr.ph24
  %39 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  br label %49

40:                                               ; preds = %28
  %41 = landingpad { ptr, i32 }
          cleanup
  br label %49

42:                                               ; preds = %._crit_edge25
  %43 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %23, i8 noundef signext 10)
          to label %44 unwind label %47

44:                                               ; preds = %42
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  call void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %1) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %1) #6
  %45 = load i64, ptr @T, align 8, !tbaa !8
  %46 = add nsw i64 %45, -1
  store i64 %46, ptr @T, align 8, !tbaa !8
  %.not = icmp eq i64 %45, 0
  br i1 %.not, label %._crit_edge29, label %.lr.ph28, !llvm.loop !14

47:                                               ; preds = %42, %._crit_edge25
  %48 = landingpad { ptr, i32 }
          cleanup
  br label %49

49:                                               ; preds = %38, %40, %47
  %.pn.pn = phi { ptr, i32 } [ %48, %47 ], [ %41, %40 ], [ %39, %38 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  call void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %1) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn.pn

._crit_edge29:                                    ; preds = %44, %0
  ret i32 0
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #1 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #2

; 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 #3 align 2

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIxSt4lessIxESaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt3setIxSt4lessIxESaIxEE5countERKx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 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 #5

; 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 #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 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 = { 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 #2 = { "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 uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long long", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}


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