; LLVM IR from DionysiosB/CodeForces :: 1200-1299 (1236C-Labs)

; 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 [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [1 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 i32, align 4
  %5 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store i64 1, ptr %3, align 8, !tbaa !5
  br label %7

7:                                                ; preds = %44, %0
  %8 = load i64, ptr %3, align 8, !tbaa !5
  %9 = load i64, ptr %2, align 8, !tbaa !5
  %10 = icmp sle i64 %8, %9
  br i1 %10, label %12, label %11

11:                                               ; preds = %7
  store i32 2, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %47

12:                                               ; preds = %7
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 1, ptr %5, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %39, %12
  %14 = load i64, ptr %5, align 8, !tbaa !5
  %15 = load i64, ptr %2, align 8, !tbaa !5
  %16 = icmp sle i64 %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  store i32 5, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %42

18:                                               ; preds = %13
  %19 = load i64, ptr %5, align 8, !tbaa !5
  %20 = and i64 %19, 1
  %21 = icmp ne i64 %20, 0
  br i1 %21, label %22, label %29

22:                                               ; preds = %18
  %23 = load i64, ptr %5, align 8, !tbaa !5
  %24 = sub nsw i64 %23, 1
  %25 = load i64, ptr %2, align 8, !tbaa !5
  %26 = mul nsw i64 %24, %25
  %27 = load i64, ptr %3, align 8, !tbaa !5
  %28 = add nsw i64 %26, %27
  br label %36

29:                                               ; preds = %18
  %30 = load i64, ptr %5, align 8, !tbaa !5
  %31 = load i64, ptr %2, align 8, !tbaa !5
  %32 = mul nsw i64 %30, %31
  %33 = load i64, ptr %3, align 8, !tbaa !5
  %34 = sub nsw i64 %32, %33
  %35 = add nsw i64 %34, 1
  br label %36

36:                                               ; preds = %29, %22
  %37 = phi i64 [ %28, %22 ], [ %35, %29 ]
  %38 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %37)
  br label %39

39:                                               ; preds = %36
  %40 = load i64, ptr %5, align 8, !tbaa !5
  %41 = add nsw i64 %40, 1
  store i64 %41, ptr %5, align 8, !tbaa !5
  br label %13, !llvm.loop !9

42:                                               ; preds = %17
  %43 = call i32 @puts(ptr noundef @.str.2)
  br label %44

44:                                               ; preds = %42
  %45 = load i64, ptr %3, align 8, !tbaa !5
  %46 = add nsw i64 %45, 1
  store i64 %46, ptr %3, align 8, !tbaa !5
  br label %7, !llvm.loop !11

47:                                               ; preds = %11
  store i32 0, ptr %1, align 4
  store i32 1, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %48 = load i32, ptr %1, align 4
  ret i32 %48
}

; 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

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 [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [1 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %2 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %3 = load i64, ptr %1, align 8, !tbaa !5
  %.not16 = icmp slt i64 %3, 1
  br i1 %.not16, label %._crit_edge18, label %.preheader

.preheader:                                       ; preds = %0, %._crit_edge
  %4 = phi i64 [ %7, %._crit_edge ], [ %3, %0 ]
  %.01017 = phi i64 [ %6, %._crit_edge ], [ 1, %0 ]
  %.not1214 = icmp slt i64 %4, 1
  br i1 %.not1214, label %._crit_edge, label %.lr.ph

._crit_edge18:                                    ; preds = %._crit_edge, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #3
  ret i32 0

._crit_edge:                                      ; preds = %17, %.preheader
  %5 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  %6 = add nuw nsw i64 %.01017, 1
  %7 = load i64, ptr %1, align 8, !tbaa !5
  %.not.not = icmp slt i64 %.01017, %7
  br i1 %.not.not, label %.preheader, label %._crit_edge18, !llvm.loop !9

.lr.ph:                                           ; preds = %.preheader, %17
  %8 = phi i64 [ %21, %17 ], [ %4, %.preheader ]
  %.015 = phi i64 [ %20, %17 ], [ 1, %.preheader ]
  %9 = and i64 %.015, 1
  %.not13 = icmp eq i64 %9, 0
  br i1 %.not13, label %14, label %10

10:                                               ; preds = %.lr.ph
  %11 = add nsw i64 %.015, -1
  %12 = mul nsw i64 %11, %8
  %13 = add nsw i64 %12, %.01017
  br label %17

14:                                               ; preds = %.lr.ph
  %15 = mul nsw i64 %8, %.015
  %reass.sub = sub i64 %15, %.01017
  %16 = add i64 %reass.sub, 1
  br label %17

17:                                               ; preds = %14, %10
  %18 = phi i64 [ %13, %10 ], [ %16, %14 ]
  %19 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %18)
  %20 = add nuw nsw i64 %.015, 1
  %21 = load i64, ptr %1, align 8, !tbaa !5
  %.not12.not = icmp slt i64 %.015, %21
  br i1 %.not12.not, label %.lr.ph, 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: 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

; 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,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass