; LLVM IR from DionysiosB/CodeForces :: 0500-0599 (572A-Arrays)

; 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"

@.str = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %4, ptr noundef %5)
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  store i64 0, ptr %8, align 8, !tbaa !5
  br label %14

14:                                               ; preds = %28, %0
  %15 = load i64, ptr %8, align 8, !tbaa !5
  %16 = load i64, ptr %2, align 8, !tbaa !5
  %17 = icmp slt i64 %15, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %31

19:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %20 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %9)
  %21 = load i64, ptr %8, align 8, !tbaa !5
  %22 = load i64, ptr %4, align 8, !tbaa !5
  %23 = sub nsw i64 %22, 1
  %24 = icmp eq i64 %21, %23
  br i1 %24, label %25, label %27

25:                                               ; preds = %19
  %26 = load i64, ptr %9, align 8, !tbaa !5
  store i64 %26, ptr %6, align 8, !tbaa !5
  br label %27

27:                                               ; preds = %25, %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %28

28:                                               ; preds = %27
  %29 = load i64, ptr %8, align 8, !tbaa !5
  %30 = add nsw i64 %29, 1
  store i64 %30, ptr %8, align 8, !tbaa !5
  br label %14, !llvm.loop !9

31:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  store i64 0, ptr %10, align 8, !tbaa !5
  br label %32

32:                                               ; preds = %47, %31
  %33 = load i64, ptr %10, align 8, !tbaa !5
  %34 = load i64, ptr %3, align 8, !tbaa !5
  %35 = icmp slt i64 %33, %34
  br i1 %35, label %37, label %36

36:                                               ; preds = %32
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  br label %50

37:                                               ; preds = %32
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  %38 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %11)
  %39 = load i64, ptr %10, align 8, !tbaa !5
  %40 = load i64, ptr %3, align 8, !tbaa !5
  %41 = load i64, ptr %5, align 8, !tbaa !5
  %42 = sub nsw i64 %40, %41
  %43 = icmp eq i64 %39, %42
  br i1 %43, label %44, label %46

44:                                               ; preds = %37
  %45 = load i64, ptr %11, align 8, !tbaa !5
  store i64 %45, ptr %7, align 8, !tbaa !5
  br label %46

46:                                               ; preds = %44, %37
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  br label %47

47:                                               ; preds = %46
  %48 = load i64, ptr %10, align 8, !tbaa !5
  %49 = add nsw i64 %48, 1
  store i64 %49, ptr %10, align 8, !tbaa !5
  br label %32, !llvm.loop !11

50:                                               ; preds = %36
  %51 = load i64, ptr %6, align 8, !tbaa !5
  %52 = load i64, ptr %7, align 8, !tbaa !5
  %53 = icmp slt i64 %51, %52
  %54 = zext i1 %53 to i64
  %55 = select i1 %53, ptr @.str.2, ptr @.str.3
  %56 = call i32 @puts(ptr noundef %55)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  ret i32 0
}

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

declare i32 @puts(ptr noundef) #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 = { 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"

@.str = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %3, ptr noundef nonnull %4)
  %9 = load i64, ptr %1, align 8, !tbaa !5
  %10 = icmp sgt i64 %9, 0
  br i1 %10, label %.lr.ph, label %.preheader

.preheader:                                       ; preds = %.lr.ph, %0
  %.010.lcssa = phi i64 [ undef, %0 ], [ %spec.select, %.lr.ph ]
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = icmp sgt i64 %11, 0
  br i1 %12, label %.lr.ph17, label %._crit_edge

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.0814 = phi i64 [ %18, %.lr.ph ], [ 0, %0 ]
  %.01013 = phi i64 [ %spec.select, %.lr.ph ], [ undef, %0 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #3
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %5)
  %14 = load i64, ptr %3, align 8, !tbaa !5
  %15 = add nsw i64 %14, -1
  %16 = icmp eq i64 %.0814, %15
  %17 = load i64, ptr %5, align 8
  %spec.select = select i1 %16, i64 %17, i64 %.01013
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #3
  %18 = add nuw nsw i64 %.0814, 1
  %19 = load i64, ptr %1, align 8, !tbaa !5
  %20 = icmp slt i64 %18, %19
  br i1 %20, label %.lr.ph, label %.preheader, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph17, %.preheader
  %.09.lcssa = phi i64 [ undef, %.preheader ], [ %spec.select12, %.lr.ph17 ]
  %21 = icmp slt i64 %.010.lcssa, %.09.lcssa
  %22 = select i1 %21, ptr @.str.2, ptr @.str.3
  %23 = call i32 @puts(ptr noundef nonnull dereferenceable(1) %22)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #3
  ret i32 0

.lr.ph17:                                         ; preds = %.preheader, %.lr.ph17
  %.016 = phi i64 [ %30, %.lr.ph17 ], [ 0, %.preheader ]
  %.0915 = phi i64 [ %spec.select12, %.lr.ph17 ], [ undef, %.preheader ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #3
  %24 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %6)
  %25 = load i64, ptr %2, align 8, !tbaa !5
  %26 = load i64, ptr %4, align 8, !tbaa !5
  %27 = sub nsw i64 %25, %26
  %28 = icmp eq i64 %.016, %27
  %29 = load i64, ptr %6, align 8
  %spec.select12 = select i1 %28, i64 %29, i64 %.0915
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #3
  %30 = add nuw nsw i64 %.016, 1
  %31 = icmp slt i64 %30, %25
  br i1 %31, label %.lr.ph17, label %._crit_edge, !llvm.loop !11
}

; 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 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 @puts(ptr nocapture noundef readonly) local_unnamed_addr #2

attributes #0 = { mustprogress nofree norecurse 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 #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 = { 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,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass