; LLVM IR from DionysiosB/CodeForces :: 1500-1599 (1506D-EpicTransformation)

; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long, std::pair<const long, long>, std::_Select1st<std::pair<const long, long>>, std::less<long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long, std::pair<const long, long>, std::_Select1st<std::pair<const long, long>>, std::less<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 }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1

; 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 i64, align 8
  %4 = alloca %"class.std::map", 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 i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %12

12:                                               ; preds = %69, %0
  %13 = load i64, ptr %2, align 8, !tbaa !5
  %14 = add nsw i64 %13, -1
  store i64 %14, ptr %2, align 8, !tbaa !5
  %15 = icmp ne i64 %13, 0
  br i1 %15, label %16, label %75

16:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 48, ptr %4) #5
  call void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  store i64 0, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  store i64 0, ptr %6, align 8, !tbaa !5
  br label %18

18:                                               ; preds = %43, %16
  %19 = load i64, ptr %6, align 8, !tbaa !5
  %20 = load i64, ptr %3, align 8, !tbaa !5
  %21 = icmp slt i64 %19, %20
  br i1 %21, label %23, label %22

22:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  br label %50

23:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %24 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %7)
          to label %25 unwind label %46

25:                                               ; preds = %23
  %26 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %4, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %27 unwind label %46

27:                                               ; preds = %25
  %28 = load i64, ptr %26, align 8, !tbaa !5
  %29 = add nsw i64 %28, 1
  store i64 %29, ptr %26, align 8, !tbaa !5
  %30 = load i64, ptr %5, align 8, !tbaa !5
  %31 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %4, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %32 unwind label %46

32:                                               ; preds = %27
  %33 = load i64, ptr %31, align 8, !tbaa !5
  %34 = icmp sgt i64 %30, %33
  br i1 %34, label %35, label %37

35:                                               ; preds = %32
  %36 = load i64, ptr %5, align 8, !tbaa !5
  br label %41

37:                                               ; preds = %32
  %38 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %4, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %39 unwind label %46

39:                                               ; preds = %37
  %40 = load i64, ptr %38, align 8, !tbaa !5
  br label %41

41:                                               ; preds = %39, %35
  %42 = phi i64 [ %36, %35 ], [ %40, %39 ]
  store i64 %42, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %43

43:                                               ; preds = %41
  %44 = load i64, ptr %6, align 8, !tbaa !5
  %45 = add nsw i64 %44, 1
  store i64 %45, ptr %6, align 8, !tbaa !5
  br label %18, !llvm.loop !9

46:                                               ; preds = %37, %27, %25, %23
  %47 = landingpad { ptr, i32 }
          cleanup
  %48 = extractvalue { ptr, i32 } %47, 0
  store ptr %48, ptr %8, align 8
  %49 = extractvalue { ptr, i32 } %47, 1
  store i32 %49, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  br label %74

50:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  store i64 0, ptr %10, align 8, !tbaa !5
  %51 = load i64, ptr %5, align 8, !tbaa !5
  %52 = mul nsw i64 2, %51
  %53 = load i64, ptr %3, align 8, !tbaa !5
  %54 = icmp sgt i64 %52, %53
  br i1 %54, label %55, label %60

55:                                               ; preds = %50
  %56 = load i64, ptr %5, align 8, !tbaa !5
  %57 = mul nsw i64 2, %56
  %58 = load i64, ptr %3, align 8, !tbaa !5
  %59 = sub nsw i64 %57, %58
  store i64 %59, ptr %10, align 8, !tbaa !5
  br label %66

60:                                               ; preds = %50
  %61 = load i64, ptr %3, align 8, !tbaa !5
  %62 = srem i64 %61, 2
  %63 = icmp ne i64 %62, 0
  br i1 %63, label %64, label %65

64:                                               ; preds = %60
  store i64 1, ptr %10, align 8, !tbaa !5
  br label %65

65:                                               ; preds = %64, %60
  br label %66

66:                                               ; preds = %65, %55
  %67 = load i64, ptr %10, align 8, !tbaa !5
  %68 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %67)
          to label %69 unwind label %70

69:                                               ; preds = %66
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  br label %12, !llvm.loop !11

70:                                               ; preds = %66
  %71 = landingpad { ptr, i32 }
          cleanup
  %72 = extractvalue { ptr, i32 } %71, 0
  store ptr %72, ptr %8, align 8
  %73 = extractvalue { ptr, i32 } %71, 1
  store i32 %73, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  br label %74

74:                                               ; preds = %70, %46
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  br label %77

75:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  %76 = load i32, ptr %1, align 4
  ret i32 %76

77:                                               ; preds = %74
  %78 = load ptr, ptr %8, align 8
  %79 = load i32, ptr %9, align 4
  %80 = insertvalue { ptr, i32 } poison, ptr %78, 0
  %81 = insertvalue { ptr, i32 } %80, i32 %79, 1
  resume { ptr, i32 } %81
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #4 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare i32 @printf(ptr noundef, ...) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long", !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}


; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long, std::pair<const long, long>, std::_Select1st<std::pair<const long, long>>, std::less<long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long, std::pair<const long, long>, std::_Select1st<std::pair<const long, long>>, std::less<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 }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::map", align 8
  %4 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #5
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %6 = load i64, ptr %1, align 8, !tbaa !5
  %7 = add nsw i64 %6, -1
  store i64 %7, ptr %1, align 8, !tbaa !5
  %.not19 = icmp eq i64 %6, 0
  br i1 %.not19, label %._crit_edge22, label %.lr.ph21

.lr.ph21:                                         ; preds = %0, %._crit_edge
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #5
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %3) #5
  call void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  %9 = load i64, ptr %2, align 8, !tbaa !5
  %10 = icmp sgt i64 %9, 0
  br i1 %10, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %31, %.lr.ph21
  %.09.lcssa = phi i64 [ 0, %.lr.ph21 ], [ %32, %31 ]
  %.lcssa = phi i64 [ %9, %.lr.ph21 ], [ %34, %31 ]
  %11 = shl nsw i64 %.09.lcssa, 1
  %12 = icmp sgt i64 %11, %.lcssa
  %13 = sub nsw i64 %11, %.lcssa
  %14 = and i64 %.lcssa, 1
  %.0 = select i1 %12, i64 %13, i64 %14
  %15 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.0)
  call void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  %16 = load i64, ptr %1, align 8, !tbaa !5
  %17 = add nsw i64 %16, -1
  store i64 %17, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %16, 0
  br i1 %.not, label %._crit_edge22, label %.lr.ph21, !llvm.loop !9

.lr.ph:                                           ; preds = %.lr.ph21, %31
  %.0917 = phi i64 [ %32, %31 ], [ 0, %.lr.ph21 ]
  %.01016 = phi i64 [ %33, %31 ], [ 0, %.lr.ph21 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  %18 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %4)
  %19 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %20 unwind label %36

20:                                               ; preds = %.lr.ph
  %21 = load i64, ptr %19, align 8, !tbaa !5
  %22 = add nsw i64 %21, 1
  store i64 %22, ptr %19, align 8, !tbaa !5
  %23 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %24 unwind label %36

24:                                               ; preds = %20
  %25 = load i64, ptr %23, align 8, !tbaa !5
  %26 = icmp sgt i64 %.0917, %25
  br i1 %26, label %31, label %27

27:                                               ; preds = %24
  %28 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %29 unwind label %36

29:                                               ; preds = %27
  %30 = load i64, ptr %28, align 8, !tbaa !5
  br label %31

31:                                               ; preds = %24, %29
  %32 = phi i64 [ %30, %29 ], [ %.0917, %24 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  %33 = add nuw nsw i64 %.01016, 1
  %34 = load i64, ptr %2, align 8, !tbaa !5
  %35 = icmp slt i64 %33, %34
  br i1 %35, label %.lr.ph, label %._crit_edge, !llvm.loop !11

36:                                               ; preds = %27, %20, %.lr.ph
  %37 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  call void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  resume { ptr, i32 } %37

._crit_edge22:                                    ; preds = %._crit_edge, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  ret i32 0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nofree nounwind "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 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 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long", !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}


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