; LLVM IR from Shah-Shishir/Codeforces-Solutions :: 1141A. Game 23 (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 [6 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 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
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  br label %7

7:                                                ; preds = %57, %0
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %3)
  %9 = icmp ne i32 %8, -1
  br i1 %9, label %10, label %59

10:                                               ; preds = %7
  %11 = load i32, ptr %3, align 4, !tbaa !5
  %12 = load i32, ptr %2, align 4, !tbaa !5
  %13 = srem i32 %11, %12
  %14 = icmp ne i32 %13, 0
  br i1 %14, label %15, label %17

15:                                               ; preds = %10
  %16 = call i32 (ptr, ...) @printf(ptr noundef @.str.1)
  br label %57

17:                                               ; preds = %10
  %18 = load i32, ptr %3, align 4, !tbaa !5
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = sdiv i32 %18, %19
  store i32 %20, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 1, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %21

21:                                               ; preds = %49, %17
  %22 = load i32, ptr %4, align 4, !tbaa !5
  %23 = icmp ne i32 %22, 0
  br i1 %23, label %24, label %50

24:                                               ; preds = %21
  %25 = load i32, ptr %4, align 4, !tbaa !5
  %26 = icmp eq i32 %25, 1
  br i1 %26, label %27, label %28

27:                                               ; preds = %24
  br label %50

28:                                               ; preds = %24
  %29 = load i32, ptr %4, align 4, !tbaa !5
  %30 = srem i32 %29, 2
  %31 = icmp eq i32 %30, 0
  br i1 %31, label %32, label %37

32:                                               ; preds = %28
  %33 = load i32, ptr %4, align 4, !tbaa !5
  %34 = sdiv i32 %33, 2
  store i32 %34, ptr %4, align 4, !tbaa !5
  %35 = load i32, ptr %6, align 4, !tbaa !5
  %36 = add nsw i32 %35, 1
  store i32 %36, ptr %6, align 4, !tbaa !5
  br label %49

37:                                               ; preds = %28
  %38 = load i32, ptr %4, align 4, !tbaa !5
  %39 = srem i32 %38, 3
  %40 = icmp eq i32 %39, 0
  br i1 %40, label %41, label %46

41:                                               ; preds = %37
  %42 = load i32, ptr %4, align 4, !tbaa !5
  %43 = sdiv i32 %42, 3
  store i32 %43, ptr %4, align 4, !tbaa !5
  %44 = load i32, ptr %6, align 4, !tbaa !5
  %45 = add nsw i32 %44, 1
  store i32 %45, ptr %6, align 4, !tbaa !5
  br label %48

46:                                               ; preds = %37
  store i32 0, ptr %5, align 4, !tbaa !5
  %47 = call i32 (ptr, ...) @printf(ptr noundef @.str.1)
  br label %50

48:                                               ; preds = %41
  br label %49

49:                                               ; preds = %48, %32
  br label %21, !llvm.loop !9

50:                                               ; preds = %46, %27, %21
  %51 = load i32, ptr %5, align 4, !tbaa !5
  %52 = icmp ne i32 %51, 0
  br i1 %52, label %53, label %56

53:                                               ; preds = %50
  %54 = load i32, ptr %6, align 4, !tbaa !5
  %55 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i32 noundef %54)
  br label %56

56:                                               ; preds = %53, %50
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %57

57:                                               ; preds = %56, %15
  %58 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  br label %7, !llvm.loop !11

59:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #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"}
!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 [6 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 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
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #3
  %3 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2)
  %.not20 = icmp eq i32 %3, -1
  br i1 %.not20, label %._crit_edge, label %.lr.ph21

.lr.ph21:                                         ; preds = %0, %23
  %4 = load i32, ptr %2, align 4, !tbaa !5
  %5 = load i32, ptr %1, align 4, !tbaa !5
  %6 = srem i32 %4, %5
  %7 = sdiv i32 %4, %5
  %.not14 = icmp eq i32 %6, 0
  br i1 %.not14, label %10, label %8

8:                                                ; preds = %.lr.ph21
  %9 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1)
  br label %23

10:                                               ; preds = %.lr.ph21
  %or.cond17 = icmp ugt i32 %7, 1
  br i1 %or.cond17, label %.lr.ph, label %.critedge

.lr.ph:                                           ; preds = %10, %21
  %.019 = phi i32 [ %.1, %21 ], [ 0, %10 ]
  %.01218 = phi i32 [ %.113, %21 ], [ %7, %10 ]
  %11 = and i32 %.01218, 1
  %12 = icmp eq i32 %11, 0
  br i1 %12, label %13, label %15

13:                                               ; preds = %.lr.ph
  %14 = ashr exact i32 %.01218, 1
  br label %21

15:                                               ; preds = %.lr.ph
  %16 = srem i32 %.01218, 3
  %17 = sdiv i32 %.01218, 3
  %18 = icmp eq i32 %16, 0
  br i1 %18, label %21, label %19

19:                                               ; preds = %15
  %20 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1)
  br label %23

21:                                               ; preds = %15, %13
  %.113 = phi i32 [ %14, %13 ], [ %17, %15 ]
  %.1 = add nuw nsw i32 %.019, 1
  %or.cond = icmp ugt i32 %.113, 1
  br i1 %or.cond, label %.lr.ph, label %.critedge, !llvm.loop !9

.critedge:                                        ; preds = %21, %10
  %.0.lcssa = phi i32 [ 0, %10 ], [ %.1, %21 ]
  %22 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i32 noundef %.0.lcssa)
  br label %23

23:                                               ; preds = %19, %.critedge, %8
  %24 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3)
  %25 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2)
  %.not = icmp eq i32 %25, -1
  br i1 %.not, label %._crit_edge, label %.lr.ph21, !llvm.loop !11

._crit_edge:                                      ; preds = %23, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #3
  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"}
!11 = distinct !{!11, !10}


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