; LLVM IR from DionysiosB/CodeForces :: 0100-0199 (177B1-RectangularGame)

; 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

; 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
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  store i64 0, ptr %2, align 8, !tbaa !5
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store i64 2, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 1, ptr %4, align 8, !tbaa !5
  br label %6

6:                                                ; preds = %35, %0
  %7 = load i64, ptr %2, align 8, !tbaa !5
  %8 = icmp sgt i64 %7, 1
  br i1 %8, label %9, label %36

9:                                                ; preds = %6
  %10 = load i64, ptr %3, align 8, !tbaa !5
  %11 = load i64, ptr %3, align 8, !tbaa !5
  %12 = mul nsw i64 %10, %11
  %13 = load i64, ptr %2, align 8, !tbaa !5
  %14 = icmp sgt i64 %12, %13
  br i1 %14, label %15, label %19

15:                                               ; preds = %9
  %16 = load i64, ptr %2, align 8, !tbaa !5
  %17 = load i64, ptr %4, align 8, !tbaa !5
  %18 = add nsw i64 %17, %16
  store i64 %18, ptr %4, align 8, !tbaa !5
  br label %36

19:                                               ; preds = %9
  %20 = load i64, ptr %2, align 8, !tbaa !5
  %21 = load i64, ptr %3, align 8, !tbaa !5
  %22 = srem i64 %20, %21
  %23 = icmp eq i64 %22, 0
  br i1 %23, label %24, label %31

24:                                               ; preds = %19
  %25 = load i64, ptr %2, align 8, !tbaa !5
  %26 = load i64, ptr %4, align 8, !tbaa !5
  %27 = add nsw i64 %26, %25
  store i64 %27, ptr %4, align 8, !tbaa !5
  %28 = load i64, ptr %3, align 8, !tbaa !5
  %29 = load i64, ptr %2, align 8, !tbaa !5
  %30 = sdiv i64 %29, %28
  store i64 %30, ptr %2, align 8, !tbaa !5
  br label %34

31:                                               ; preds = %19
  %32 = load i64, ptr %3, align 8, !tbaa !5
  %33 = add nsw i64 %32, 1
  store i64 %33, ptr %3, align 8, !tbaa !5
  br label %34

34:                                               ; preds = %31, %24
  br label %35

35:                                               ; preds = %34
  br label %6, !llvm.loop !9

36:                                               ; preds = %15, %6
  %37 = load i64, ptr %4, align 8, !tbaa !5
  %38 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %37)
  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
  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 = !{!"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 [4 x i8], align 1
@.str.1 = 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  store i64 0, ptr %1, align 8, !tbaa !5
  %2 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %.promoted = load i64, ptr %1, align 8, !tbaa !5
  %3 = icmp sgt i64 %.promoted, 1
  br i1 %3, label %.lr.ph, label %.loopexit

.lr.ph:                                           ; preds = %0, %17
  %.014 = phi i64 [ %.1, %17 ], [ 1, %0 ]
  %.0813 = phi i64 [ %.19, %17 ], [ 2, %0 ]
  %4 = phi i64 [ %18, %17 ], [ %.promoted, %0 ]
  %5 = mul nsw i64 %.0813, %.0813
  %6 = icmp ugt i64 %5, %4
  br i1 %6, label %7, label %9

7:                                                ; preds = %.lr.ph
  %8 = add nuw nsw i64 %4, %.014
  br label %.loopexit

9:                                                ; preds = %.lr.ph
  %10 = srem i64 %4, %.0813
  %11 = sdiv i64 %4, %.0813
  %12 = icmp eq i64 %10, 0
  br i1 %12, label %13, label %15

13:                                               ; preds = %9
  %14 = add nuw nsw i64 %4, %.014
  store i64 %11, ptr %1, align 8, !tbaa !5
  br label %17

15:                                               ; preds = %9
  %16 = add nsw i64 %.0813, 1
  br label %17

17:                                               ; preds = %13, %15
  %18 = phi i64 [ %11, %13 ], [ %4, %15 ]
  %.19 = phi i64 [ %.0813, %13 ], [ %16, %15 ]
  %.1 = phi i64 [ %14, %13 ], [ %.014, %15 ]
  %19 = icmp sgt i64 %18, 1
  br i1 %19, label %.lr.ph, label %.loopexit, !llvm.loop !9

.loopexit:                                        ; preds = %17, %0, %7
  %.2 = phi i64 [ %8, %7 ], [ 1, %0 ], [ %.1, %17 ]
  %20 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.2)
  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 @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 = !{!"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: DivRemPairsPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass