; LLVM IR from DionysiosB/CodeForces :: 1400-1499 (1485A-AddAndDivide)

; 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 [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 i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %11

11:                                               ; preds = %61, %0
  %12 = load i64, ptr %2, align 8, !tbaa !5
  %13 = add nsw i64 %12, -1
  store i64 %13, ptr %2, align 8, !tbaa !5
  %14 = icmp ne i64 %12, 0
  br i1 %14, label %15, label %64

15:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %16 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %3, ptr noundef %4)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %17 = load i64, ptr %3, align 8, !tbaa !5
  %18 = load i64, ptr %4, align 8, !tbaa !5
  %19 = sdiv i64 %17, %18
  %20 = add nsw i64 1, %19
  store i64 %20, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %21 = load i64, ptr %4, align 8, !tbaa !5
  store i64 %21, ptr %6, align 8, !tbaa !5
  br label %22

22:                                               ; preds = %58, %15
  %23 = load i64, ptr %6, align 8, !tbaa !5
  %24 = load i64, ptr %4, align 8, !tbaa !5
  %25 = add nsw i64 %24, 100
  %26 = icmp sle i64 %23, %25
  br i1 %26, label %28, label %27

27:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %61

28:                                               ; preds = %22
  %29 = load i64, ptr %6, align 8, !tbaa !5
  %30 = icmp eq i64 %29, 1
  br i1 %30, label %31, label %32

31:                                               ; preds = %28
  br label %58

32:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  store i64 0, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %33 = load i64, ptr %3, align 8, !tbaa !5
  store i64 %33, ptr %8, align 8, !tbaa !5
  br label %34

34:                                               ; preds = %37, %32
  %35 = load i64, ptr %8, align 8, !tbaa !5
  %36 = icmp ne i64 %35, 0
  br i1 %36, label %37, label %43

37:                                               ; preds = %34
  %38 = load i64, ptr %6, align 8, !tbaa !5
  %39 = load i64, ptr %8, align 8, !tbaa !5
  %40 = sdiv i64 %39, %38
  store i64 %40, ptr %8, align 8, !tbaa !5
  %41 = load i64, ptr %7, align 8, !tbaa !5
  %42 = add nsw i64 %41, 1
  store i64 %42, ptr %7, align 8, !tbaa !5
  br label %34, !llvm.loop !9

43:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %44 = load i64, ptr %6, align 8, !tbaa !5
  %45 = load i64, ptr %4, align 8, !tbaa !5
  %46 = sub nsw i64 %44, %45
  %47 = load i64, ptr %7, align 8, !tbaa !5
  %48 = add nsw i64 %46, %47
  store i64 %48, ptr %9, align 8, !tbaa !5
  %49 = load i64, ptr %5, align 8, !tbaa !5
  %50 = load i64, ptr %9, align 8, !tbaa !5
  %51 = icmp slt i64 %49, %50
  br i1 %51, label %52, label %54

52:                                               ; preds = %43
  %53 = load i64, ptr %5, align 8, !tbaa !5
  br label %56

54:                                               ; preds = %43
  %55 = load i64, ptr %9, align 8, !tbaa !5
  br label %56

56:                                               ; preds = %54, %52
  %57 = phi i64 [ %53, %52 ], [ %55, %54 ]
  store i64 %57, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %58

58:                                               ; preds = %56, %31
  %59 = load i64, ptr %6, align 8, !tbaa !5
  %60 = add nsw i64 %59, 1
  store i64 %60, ptr %6, align 8, !tbaa !5
  br label %22, !llvm.loop !11

61:                                               ; preds = %27
  %62 = load i64, ptr %5, align 8, !tbaa !5
  %63 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %62)
  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 %11, !llvm.loop !12

64:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %65 = load i32, ptr %1, align 4
  ret i32 %65
}

; 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !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 [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 i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #4
  %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
  %.not27 = icmp eq i64 %5, 0
  br i1 %.not27, label %._crit_edge29, label %.lr.ph

.lr.ph:                                           ; preds = %0, %.split26.us
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2, ptr noundef nonnull %3)
  %8 = load i64, ptr %2, align 8, !tbaa !5
  %.fr = freeze i64 %8
  %9 = load i64, ptr %3, align 8, !tbaa !5
  %10 = sdiv i64 %.fr, %9
  %11 = add nsw i64 %10, 1
  %12 = add nsw i64 %9, 100
  %.not1920 = icmp eq i64 %.fr, 0
  br i1 %.not1920, label %.split.us, label %.split

.split.us:                                        ; preds = %.lr.ph, %.split.us
  %.024.us = phi i64 [ %.1.us, %.split.us ], [ %11, %.lr.ph ]
  %.01723.us = phi i64 [ %16, %.split.us ], [ %9, %.lr.ph ]
  %13 = icmp eq i64 %.01723.us, 1
  %14 = sub nsw i64 %.01723.us, %9
  %15 = call i64 @llvm.smin.i64(i64 %.024.us, i64 %14)
  %.1.us = select i1 %13, i64 %.024.us, i64 %15
  %16 = add nsw i64 %.01723.us, 1
  %.not18.us.not = icmp slt i64 %.01723.us, %12
  br i1 %.not18.us.not, label %.split.us, label %.split26.us, !llvm.loop !9

.split26.us:                                      ; preds = %26, %.split.us
  %.us-phi = phi i64 [ %.1.us, %.split.us ], [ %.1, %26 ]
  %17 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %.us-phi)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  %18 = load i64, ptr %1, align 8, !tbaa !5
  %19 = add nsw i64 %18, -1
  store i64 %19, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %18, 0
  br i1 %.not, label %._crit_edge29, label %.lr.ph, !llvm.loop !11

.split:                                           ; preds = %.lr.ph, %26
  %.024 = phi i64 [ %.1, %26 ], [ %11, %.lr.ph ]
  %.01723 = phi i64 [ %27, %26 ], [ %9, %.lr.ph ]
  %20 = icmp eq i64 %.01723, 1
  br i1 %20, label %26, label %.preheader

.preheader:                                       ; preds = %.split, %.preheader
  %.01522 = phi i64 [ %21, %.preheader ], [ %.fr, %.split ]
  %.01621 = phi i64 [ %22, %.preheader ], [ 0, %.split ]
  %21 = sdiv i64 %.01522, %.01723
  %22 = add nuw nsw i64 %.01621, 1
  %.not19 = icmp eq i64 %21, 0
  br i1 %.not19, label %._crit_edge, label %.preheader, !llvm.loop !12

._crit_edge:                                      ; preds = %.preheader
  %23 = sub nsw i64 %.01723, %9
  %24 = add nsw i64 %23, %22
  %25 = call i64 @llvm.smin.i64(i64 %.024, i64 %24)
  br label %26

26:                                               ; preds = %.split, %._crit_edge
  %.1 = phi i64 [ %.024, %.split ], [ %25, %._crit_edge ]
  %27 = add nsw i64 %.01723, 1
  %.not18.not = icmp slt i64 %.01723, %12
  br i1 %.not18.not, label %.split, label %.split26.us, !llvm.loop !9

._crit_edge29:                                    ; preds = %.split26.us, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #4
  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

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.smin.i64(i64, i64) #3

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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { 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}
!12 = distinct !{!12, !10}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopInstSimplifyPass,LoopRotatePass,LoopSimplifyCFGPass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass