; LLVM IR from DionysiosB/CodeForces :: 0001-0099 (44C-Holidays)

; 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 [8 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [9 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 i32, align 4
  %9 = alloca i64, align 8
  %10 = 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
  %11 = 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
  store i64 0, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 -1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 1, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  store i64 0, ptr %7, align 8, !tbaa !5
  br label %12

12:                                               ; preds = %46, %0
  %13 = load i64, ptr %7, align 8, !tbaa !5
  %14 = load i64, ptr %3, align 8, !tbaa !5
  %15 = icmp slt i64 %13, %14
  br i1 %15, label %17, label %16

16:                                               ; preds = %12
  store i32 2, ptr %8, align 4
  br label %49

17:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %18 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %9, ptr noundef %10)
  %19 = load i64, ptr %4, align 8, !tbaa !5
  %20 = add nsw i64 %19, 1
  %21 = load i64, ptr %9, align 8, !tbaa !5
  %22 = icmp slt i64 %20, %21
  br i1 %22, label %23, label %26

23:                                               ; preds = %17
  %24 = load i64, ptr %4, align 8, !tbaa !5
  %25 = add nsw i64 %24, 1
  store i64 %25, ptr %5, align 8, !tbaa !5
  store i64 0, ptr %6, align 8, !tbaa !5
  store i32 2, ptr %8, align 4
  br label %43

26:                                               ; preds = %17
  %27 = load i64, ptr %9, align 8, !tbaa !5
  %28 = load i64, ptr %4, align 8, !tbaa !5
  %29 = add nsw i64 %28, 1
  %30 = icmp slt i64 %27, %29
  br i1 %30, label %31, label %40

31:                                               ; preds = %26
  %32 = load i64, ptr %9, align 8, !tbaa !5
  store i64 %32, ptr %5, align 8, !tbaa !5
  %33 = load i64, ptr %6, align 8, !tbaa !5
  %34 = add nsw i64 %33, 1
  store i64 %34, ptr %6, align 8, !tbaa !5
  %35 = load i64, ptr %10, align 8, !tbaa !5
  %36 = load i64, ptr %9, align 8, !tbaa !5
  %37 = icmp sgt i64 %35, %36
  br i1 %37, label %38, label %39

38:                                               ; preds = %31
  store i32 2, ptr %8, align 4
  br label %43

39:                                               ; preds = %31
  br label %40

40:                                               ; preds = %39, %26
  br label %41

41:                                               ; preds = %40
  %42 = load i64, ptr %10, align 8, !tbaa !5
  store i64 %42, ptr %4, align 8, !tbaa !5
  store i32 0, ptr %8, align 4
  br label %43

43:                                               ; preds = %41, %38, %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  %44 = load i32, ptr %8, align 4
  switch i32 %44, label %49 [
    i32 0, label %45
  ]

45:                                               ; preds = %43
  br label %46

46:                                               ; preds = %45
  %47 = load i64, ptr %7, align 8, !tbaa !5
  %48 = add nsw i64 %47, 1
  store i64 %48, ptr %7, align 8, !tbaa !5
  br label %12, !llvm.loop !9

49:                                               ; preds = %43, %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %50

50:                                               ; preds = %49
  %51 = load i64, ptr %5, align 8, !tbaa !5
  %52 = icmp slt i64 %51, 0
  br i1 %52, label %53, label %60

53:                                               ; preds = %50
  %54 = load i64, ptr %4, align 8, !tbaa !5
  %55 = load i64, ptr %2, align 8, !tbaa !5
  %56 = icmp slt i64 %54, %55
  br i1 %56, label %57, label %60

57:                                               ; preds = %53
  %58 = load i64, ptr %4, align 8, !tbaa !5
  %59 = add nsw i64 %58, 1
  store i64 %59, ptr %5, align 8, !tbaa !5
  store i64 0, ptr %6, align 8, !tbaa !5
  br label %60

60:                                               ; preds = %57, %53, %50
  %61 = load i64, ptr %5, align 8, !tbaa !5
  %62 = icmp slt i64 %61, 0
  br i1 %62, label %63, label %65

63:                                               ; preds = %60
  %64 = call i32 @puts(ptr noundef @.str.1)
  br label %69

65:                                               ; preds = %60
  %66 = load i64, ptr %5, align 8, !tbaa !5
  %67 = load i64, ptr %6, align 8, !tbaa !5
  %68 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %66, i64 noundef %67)
  br label %69

69:                                               ; preds = %65, %63
  store i32 0, ptr %1, align 4
  store i32 1, ptr %8, align 4
  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
  %70 = load i32, ptr %1, align 4
  ret i32 %70
}

; 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

declare i32 @printf(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"}


; 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 [8 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [9 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2)
  %6 = load i64, ptr %2, align 8, !tbaa !5
  %7 = icmp sgt i64 %6, 0
  br i1 %7, label %.lr.ph, label %.loopexit

.lr.ph:                                           ; preds = %0, %16
  %.01439 = phi i64 [ %17, %16 ], [ 0, %0 ]
  %.01538 = phi i64 [ %.1, %16 ], [ 1, %0 ]
  %.01637 = phi i64 [ %.117, %16 ], [ -1, %0 ]
  %.02136 = phi i64 [ %.pre, %16 ], [ 0, %0 ]
  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 = add nsw i64 %.02136, 1
  %10 = load i64, ptr %3, align 8, !tbaa !5
  %11 = icmp slt i64 %9, %10
  br i1 %11, label %.thread, label %12

12:                                               ; preds = %.lr.ph
  %.not = icmp sgt i64 %10, %.02136
  %.pre = load i64, ptr %4, align 8, !tbaa !5
  br i1 %.not, label %16, label %13

13:                                               ; preds = %12
  %14 = add nsw i64 %.01538, 1
  %15 = icmp sgt i64 %.pre, %10
  br i1 %15, label %.thread, label %16

.thread:                                          ; preds = %.lr.ph, %13
  %.218.ph = phi i64 [ %10, %13 ], [ %9, %.lr.ph ]
  %.2.ph = phi i64 [ %14, %13 ], [ 0, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  br label %.loopexit

16:                                               ; preds = %12, %13
  %.117 = phi i64 [ %10, %13 ], [ %.01637, %12 ]
  %.1 = phi i64 [ %14, %13 ], [ %.01538, %12 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  %17 = add nuw nsw i64 %.01439, 1
  %18 = load i64, ptr %2, align 8, !tbaa !5
  %19 = icmp slt i64 %17, %18
  br i1 %19, label %.lr.ph, label %.loopexit, !llvm.loop !9

.loopexit:                                        ; preds = %16, %0, %.thread
  %.02135 = phi i64 [ %.02136, %.thread ], [ 0, %0 ], [ %.pre, %16 ]
  %.319 = phi i64 [ %.218.ph, %.thread ], [ -1, %0 ], [ %.117, %16 ]
  %.3 = phi i64 [ %.2.ph, %.thread ], [ 1, %0 ], [ %.1, %16 ]
  %20 = icmp slt i64 %.319, 0
  %21 = load i64, ptr %1, align 8
  %22 = icmp slt i64 %.02135, %21
  %or.cond = select i1 %20, i1 %22, i1 false
  %23 = add nsw i64 %.02135, 1
  %.420 = select i1 %or.cond, i64 %23, i64 %.319
  %24 = icmp slt i64 %.420, 0
  br i1 %24, label %25, label %27

25:                                               ; preds = %.loopexit
  %26 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.1)
  br label %29

27:                                               ; preds = %.loopexit
  %.4 = select i1 %or.cond, i64 0, i64 %.3
  %28 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %.420, i64 noundef %.4)
  br label %29

29:                                               ; preds = %27, %25
  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
}

; 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

; Function Attrs: nofree nounwind
declare noundef i32 @printf(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"}


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