; LLVM IR from DionysiosB/CodeForces :: 1500-1599 (1591A-LifeOfAFlower)

; 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 [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 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 i32, align 4
  %8 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %10

10:                                               ; preds = %54, %0
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = add nsw i64 %11, -1
  store i64 %12, ptr %2, align 8, !tbaa !5
  %13 = icmp ne i64 %11, 0
  br i1 %13, label %14, label %57

14:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, 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 0, ptr %6, align 8, !tbaa !5
  br label %16

16:                                               ; preds = %51, %14
  %17 = load i64, ptr %6, align 8, !tbaa !5
  %18 = load i64, ptr %3, align 8, !tbaa !5
  %19 = icmp slt i64 %17, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  store i32 4, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %54

21:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %22 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %8)
  %23 = load i64, ptr %5, align 8, !tbaa !5
  %24 = icmp slt i64 %23, 0
  br i1 %24, label %25, label %26

25:                                               ; preds = %21
  store i32 6, ptr %7, align 4
  br label %48

26:                                               ; preds = %21
  %27 = load i32, ptr %8, align 4, !tbaa !9
  %28 = icmp ne i32 %27, 0
  br i1 %28, label %29, label %37

29:                                               ; preds = %26
  %30 = load i64, ptr %4, align 8, !tbaa !5
  %31 = icmp ne i64 %30, 0
  %32 = zext i1 %31 to i64
  %33 = select i1 %31, i32 5, i32 1
  %34 = sext i32 %33 to i64
  %35 = load i64, ptr %5, align 8, !tbaa !5
  %36 = add nsw i64 %35, %34
  store i64 %36, ptr %5, align 8, !tbaa !5
  br label %45

37:                                               ; preds = %26
  %38 = load i64, ptr %6, align 8, !tbaa !5
  %39 = icmp ne i64 %38, 0
  br i1 %39, label %40, label %44

40:                                               ; preds = %37
  %41 = load i64, ptr %4, align 8, !tbaa !5
  %42 = icmp ne i64 %41, 0
  br i1 %42, label %44, label %43

43:                                               ; preds = %40
  store i64 -1, ptr %5, align 8, !tbaa !5
  br label %44

44:                                               ; preds = %43, %40, %37
  br label %45

45:                                               ; preds = %44, %29
  %46 = load i32, ptr %8, align 4, !tbaa !9
  %47 = sext i32 %46 to i64
  store i64 %47, ptr %4, align 8, !tbaa !5
  store i32 0, ptr %7, align 4
  br label %48

48:                                               ; preds = %45, %25
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  %49 = load i32, ptr %7, align 4
  switch i32 %49, label %59 [
    i32 0, label %50
    i32 6, label %51
  ]

50:                                               ; preds = %48
  br label %51

51:                                               ; preds = %50, %48
  %52 = load i64, ptr %6, align 8, !tbaa !5
  %53 = add nsw i64 %52, 1
  store i64 %53, ptr %6, align 8, !tbaa !5
  br label %16, !llvm.loop !11

54:                                               ; preds = %20
  %55 = load i64, ptr %5, align 8, !tbaa !5
  %56 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %55)
  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
  br label %10, !llvm.loop !13

57:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %58 = load i32, ptr %1, align 4
  ret i32 %58

59:                                               ; preds = %48
  unreachable
}

; 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 @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 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !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"

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 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 i32, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %5 = load i64, ptr %1, align 8, !tbaa !5
  %6 = add nsw i64 %5, -1
  store i64 %6, ptr %1, align 8, !tbaa !5
  %.not18 = icmp eq i64 %5, 0
  br i1 %.not18, label %._crit_edge21, label %.lr.ph20

.lr.ph20:                                         ; preds = %0, %._crit_edge
  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 %2)
  %8 = load i64, ptr %2, align 8, !tbaa !5
  %9 = icmp sgt i64 %8, 0
  br i1 %9, label %10, label %._crit_edge

10:                                               ; preds = %.lr.ph20
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %3)
  %12 = load i32, ptr %3, align 4, !tbaa !9
  %.not13.peel = icmp eq i32 %12, 0
  %spec.select24 = select i1 %.not13.peel, i64 1, i64 2
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  %13 = load i64, ptr %2, align 8, !tbaa !5
  %14 = icmp sgt i64 %13, 1
  br i1 %14, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %10
  %15 = sext i32 %12 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %26, %10, %.lr.ph20
  %.010.lcssa = phi i64 [ 1, %.lr.ph20 ], [ %spec.select24, %10 ], [ %.2, %26 ]
  %16 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %.010.lcssa)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  %17 = load i64, ptr %1, align 8, !tbaa !5
  %18 = add nsw i64 %17, -1
  store i64 %18, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %17, 0
  br i1 %.not, label %._crit_edge21, label %.lr.ph20, !llvm.loop !11

.lr.ph:                                           ; preds = %.lr.ph.preheader, %26
  %.017 = phi i64 [ %27, %26 ], [ 1, %.lr.ph.preheader ]
  %.01016 = phi i64 [ %.2, %26 ], [ %spec.select24, %.lr.ph.preheader ]
  %.01115 = phi i64 [ %.112, %26 ], [ %15, %.lr.ph.preheader ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  %19 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %3)
  %20 = icmp slt i64 %.01016, 0
  br i1 %20, label %26, label %21

21:                                               ; preds = %.lr.ph
  %22 = load i32, ptr %3, align 4, !tbaa !9
  %.not13 = icmp eq i32 %22, 0
  %.not23 = icmp eq i64 %.01115, 0
  %23 = select i1 %.not23, i64 1, i64 5
  %24 = add nuw nsw i64 %23, %.01016
  %spec.select = select i1 %.not23, i64 -1, i64 %.01016
  %.1 = select i1 %.not13, i64 %spec.select, i64 %24
  %25 = sext i32 %22 to i64
  br label %26

26:                                               ; preds = %.lr.ph, %21
  %.112 = phi i64 [ %25, %21 ], [ %.01115, %.lr.ph ]
  %.2 = phi i64 [ %.1, %21 ], [ %.01016, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  %27 = add nuw nsw i64 %.017, 1
  %28 = load i64, ptr %2, align 8, !tbaa !5
  %29 = icmp slt i64 %27, %28
  br i1 %29, label %.lr.ph, label %._crit_edge, !llvm.loop !13

._crit_edge21:                                    ; preds = %._crit_edge, %0
  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 @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 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12, !14}
!14 = !{!"llvm.loop.peeled.count", i32 1}


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