; LLVM IR from Shah-Shishir/Codeforces-Solutions :: 893B. Beautiful Divisors (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 [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.8 = 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 i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  br label %3

3:                                                ; preds = %56, %0
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  %5 = icmp ne i32 %4, -1
  br i1 %5, label %6, label %57

6:                                                ; preds = %3
  %7 = load i32, ptr %2, align 4, !tbaa !5
  %8 = srem i32 %7, 32640
  %9 = icmp eq i32 %8, 0
  br i1 %9, label %10, label %12

10:                                               ; preds = %6
  %11 = call i32 (ptr, ...) @printf(ptr noundef @.str.1)
  br label %56

12:                                               ; preds = %6
  %13 = load i32, ptr %2, align 4, !tbaa !5
  %14 = srem i32 %13, 8128
  %15 = icmp eq i32 %14, 0
  br i1 %15, label %16, label %18

16:                                               ; preds = %12
  %17 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  br label %55

18:                                               ; preds = %12
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = srem i32 %19, 2016
  %21 = icmp eq i32 %20, 0
  br i1 %21, label %22, label %24

22:                                               ; preds = %18
  %23 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  br label %54

24:                                               ; preds = %18
  %25 = load i32, ptr %2, align 4, !tbaa !5
  %26 = srem i32 %25, 496
  %27 = icmp eq i32 %26, 0
  br i1 %27, label %28, label %30

28:                                               ; preds = %24
  %29 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  br label %53

30:                                               ; preds = %24
  %31 = load i32, ptr %2, align 4, !tbaa !5
  %32 = srem i32 %31, 120
  %33 = icmp eq i32 %32, 0
  br i1 %33, label %34, label %36

34:                                               ; preds = %30
  %35 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  br label %52

36:                                               ; preds = %30
  %37 = load i32, ptr %2, align 4, !tbaa !5
  %38 = srem i32 %37, 28
  %39 = icmp eq i32 %38, 0
  br i1 %39, label %40, label %42

40:                                               ; preds = %36
  %41 = call i32 (ptr, ...) @printf(ptr noundef @.str.6)
  br label %51

42:                                               ; preds = %36
  %43 = load i32, ptr %2, align 4, !tbaa !5
  %44 = srem i32 %43, 6
  %45 = icmp eq i32 %44, 0
  br i1 %45, label %46, label %48

46:                                               ; preds = %42
  %47 = call i32 (ptr, ...) @printf(ptr noundef @.str.7)
  br label %50

48:                                               ; preds = %42
  %49 = call i32 (ptr, ...) @printf(ptr noundef @.str.8)
  br label %50

50:                                               ; preds = %48, %46
  br label %51

51:                                               ; preds = %50, %40
  br label %52

52:                                               ; preds = %51, %34
  br label %53

53:                                               ; preds = %52, %28
  br label %54

54:                                               ; preds = %53, %22
  br label %55

55:                                               ; preds = %54, %16
  br label %56

56:                                               ; preds = %55, %10
  br label %3, !llvm.loop !9

57:                                               ; preds = %3
  call void @llvm.lifetime.end.p0(i64 4, 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

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

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

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 = !{!"int", !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 [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.8 = 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 i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #3
  %2 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %.not1 = icmp eq i32 %2, -1
  br i1 %.not1, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %24
  %3 = load i32, ptr %1, align 4, !tbaa !5
  %4 = srem i32 %3, 32640
  %5 = icmp eq i32 %4, 0
  br i1 %5, label %24, label %6

6:                                                ; preds = %.lr.ph
  %7 = srem i32 %3, 8128
  %8 = icmp eq i32 %7, 0
  br i1 %8, label %24, label %9

9:                                                ; preds = %6
  %10 = srem i32 %3, 2016
  %11 = icmp eq i32 %10, 0
  br i1 %11, label %24, label %12

12:                                               ; preds = %9
  %13 = srem i32 %3, 496
  %14 = icmp eq i32 %13, 0
  br i1 %14, label %24, label %15

15:                                               ; preds = %12
  %16 = srem i32 %3, 120
  %17 = icmp eq i32 %16, 0
  br i1 %17, label %24, label %18

18:                                               ; preds = %15
  %19 = srem i32 %3, 28
  %20 = icmp eq i32 %19, 0
  br i1 %20, label %24, label %21

21:                                               ; preds = %18
  %22 = srem i32 %3, 6
  %23 = icmp eq i32 %22, 0
  %.str.7..str.8 = select i1 %23, ptr @.str.7, ptr @.str.8
  br label %24

24:                                               ; preds = %21, %18, %15, %12, %9, %6, %.lr.ph
  %.str.2.sink = phi ptr [ @.str.1, %.lr.ph ], [ @.str.2, %6 ], [ @.str.3, %9 ], [ @.str.4, %12 ], [ @.str.5, %15 ], [ @.str.6, %18 ], [ %.str.7..str.8, %21 ]
  %25 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) %.str.2.sink)
  %26 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %.not = icmp eq i32 %26, -1
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %24, %0
  call void @llvm.lifetime.end.p0(i64 4, 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 @printf(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

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 = !{!"int", !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,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass