; LLVM IR from DionysiosB/CodeForces :: 1872C-NoncoprimeSplit (main)

; 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 [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [7 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
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %9

9:                                                ; preds = %65, %0
  %10 = load i64, ptr %2, align 8, !tbaa !5
  %11 = add nsw i64 %10, -1
  store i64 %11, ptr %2, align 8, !tbaa !5
  %12 = icmp ne i64 %10, 0
  br i1 %12, label %13, label %66

13:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %14 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %3, ptr noundef %4)
  %15 = load i64, ptr %4, align 8, !tbaa !5
  %16 = icmp slt i64 %15, 4
  br i1 %16, label %17, label %19

17:                                               ; preds = %13
  %18 = call i32 @puts(ptr noundef @.str.2)
  br label %65

19:                                               ; preds = %13
  %20 = load i64, ptr %3, align 8, !tbaa !5
  %21 = load i64, ptr %4, align 8, !tbaa !5
  %22 = icmp eq i64 %20, %21
  br i1 %22, label %23, label %57

23:                                               ; preds = %19
  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 2, ptr %6, align 8, !tbaa !5
  br label %24

24:                                               ; preds = %41, %23
  %25 = load i64, ptr %6, align 8, !tbaa !5
  %26 = load i64, ptr %6, align 8, !tbaa !5
  %27 = mul nsw i64 %25, %26
  %28 = load i64, ptr %4, align 8, !tbaa !5
  %29 = icmp sle i64 %27, %28
  br i1 %29, label %31, label %30

30:                                               ; preds = %24
  store i32 4, ptr %7, align 4
  br label %44

31:                                               ; preds = %24
  %32 = load i64, ptr %4, align 8, !tbaa !5
  %33 = load i64, ptr %6, align 8, !tbaa !5
  %34 = sub nsw i64 %32, %33
  %35 = load i64, ptr %6, align 8, !tbaa !5
  %36 = srem i64 %34, %35
  %37 = icmp eq i64 %36, 0
  br i1 %37, label %38, label %40

38:                                               ; preds = %31
  %39 = load i64, ptr %6, align 8, !tbaa !5
  store i64 %39, ptr %5, align 8, !tbaa !5
  store i32 4, ptr %7, align 4
  br label %44

40:                                               ; preds = %31
  br label %41

41:                                               ; preds = %40
  %42 = load i64, ptr %6, align 8, !tbaa !5
  %43 = add nsw i64 %42, 1
  store i64 %43, ptr %6, align 8, !tbaa !5
  br label %24, !llvm.loop !9

44:                                               ; preds = %38, %30
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %45

45:                                               ; preds = %44
  %46 = load i64, ptr %5, align 8, !tbaa !5
  %47 = icmp sgt i64 %46, 0
  br i1 %47, label %48, label %54

48:                                               ; preds = %45
  %49 = load i64, ptr %5, align 8, !tbaa !5
  %50 = load i64, ptr %4, align 8, !tbaa !5
  %51 = load i64, ptr %5, align 8, !tbaa !5
  %52 = sub nsw i64 %50, %51
  %53 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i64 noundef %49, i64 noundef %52)
  br label %56

54:                                               ; preds = %45
  %55 = call i32 @puts(ptr noundef @.str.2)
  br label %56

56:                                               ; preds = %54, %48
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %64

57:                                               ; preds = %19
  %58 = load i64, ptr %4, align 8, !tbaa !5
  %59 = load i64, ptr %4, align 8, !tbaa !5
  %60 = srem i64 %59, 2
  %61 = sub nsw i64 %58, %60
  %62 = sub nsw i64 %61, 2
  %63 = call i32 (ptr, ...) @printf(ptr noundef @.str.4, i64 noundef %62)
  br label %64

64:                                               ; preds = %57, %56
  br label %65

65:                                               ; preds = %64, %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %9, !llvm.loop !11

66:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %67 = load i32, ptr %1, align 4
  ret i32 %67
}

; 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

declare i32 @puts(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 = 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 [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [7 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
  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
  %.not19 = icmp eq i64 %5, 0
  br i1 %.not19, label %._crit_edge22, label %.lr.ph21

.lr.ph21:                                         ; preds = %0, %28
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2, ptr noundef nonnull %3)
  %8 = load i64, ptr %3, align 8, !tbaa !5
  %9 = icmp slt i64 %8, 4
  br i1 %9, label %10, label %12

10:                                               ; preds = %.lr.ph21
  %11 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  br label %28

12:                                               ; preds = %.lr.ph21
  %13 = load i64, ptr %2, align 8, !tbaa !5
  %14 = icmp eq i64 %13, %8
  br i1 %14, label %.lr.ph, label %24

.lr.ph:                                           ; preds = %12, %18
  %.018 = phi i64 [ %19, %18 ], [ 2, %12 ]
  %15 = sub nsw i64 %8, %.018
  %16 = srem i64 %15, %.018
  %17 = icmp eq i64 %16, 0
  br i1 %17, label %21, label %18

18:                                               ; preds = %.lr.ph
  %19 = add nuw nsw i64 %.018, 1
  %20 = mul nuw nsw i64 %19, %19
  %.not13 = icmp sgt i64 %20, %8
  br i1 %.not13, label %._crit_edge, label %.lr.ph, !llvm.loop !9

21:                                               ; preds = %.lr.ph
  %22 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i64 noundef %.018, i64 noundef %15)
  br label %28

._crit_edge:                                      ; preds = %18
  %23 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  br label %28

24:                                               ; preds = %12
  %25 = and i64 %8, 9223372036854775806
  %26 = add nsw i64 %25, -2
  %27 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4, i64 noundef %26)
  br label %28

28:                                               ; preds = %21, %._crit_edge, %24, %10
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  %29 = load i64, ptr %1, align 8, !tbaa !5
  %30 = add nsw i64 %29, -1
  store i64 %30, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %29, 0
  br i1 %.not, label %._crit_edge22, label %.lr.ph21, !llvm.loop !11

._crit_edge22:                                    ; preds = %28, %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: nofree nounwind
declare noundef i32 @puts(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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


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