; LLVM IR from DionysiosB/CodeForces :: 2092C-AsunaAndTheMosquitoes (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 [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [6 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
  %16 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 0, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 0, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  store i64 0, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  store i64 0, ptr %8, align 8, !tbaa !5
  br label %17

17:                                               ; preds = %45, %15
  %18 = load i64, ptr %8, align 8, !tbaa !5
  %19 = load i64, ptr %3, align 8, !tbaa !5
  %20 = icmp slt i64 %18, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %48

22:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %23 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %9)
  %24 = load i64, ptr %9, align 8, !tbaa !5
  %25 = srem i64 %24, 2
  %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 %9, align 8, !tbaa !5
  %29 = srem i64 %28, 2
  %30 = sub nsw i64 1, %29
  %31 = load i64, ptr %5, align 8, !tbaa !5
  %32 = add nsw i64 %31, %30
  store i64 %32, ptr %5, align 8, !tbaa !5
  %33 = load i64, ptr %6, align 8, !tbaa !5
  %34 = load i64, ptr %9, align 8, !tbaa !5
  %35 = icmp sgt i64 %33, %34
  br i1 %35, label %36, label %38

36:                                               ; preds = %22
  %37 = load i64, ptr %6, align 8, !tbaa !5
  br label %40

38:                                               ; preds = %22
  %39 = load i64, ptr %9, align 8, !tbaa !5
  br label %40

40:                                               ; preds = %38, %36
  %41 = phi i64 [ %37, %36 ], [ %39, %38 ]
  store i64 %41, ptr %6, align 8, !tbaa !5
  %42 = load i64, ptr %9, align 8, !tbaa !5
  %43 = load i64, ptr %7, align 8, !tbaa !9
  %44 = add nsw i64 %43, %42
  store i64 %44, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %45

45:                                               ; preds = %40
  %46 = load i64, ptr %8, align 8, !tbaa !5
  %47 = add nsw i64 %46, 1
  store i64 %47, ptr %8, align 8, !tbaa !5
  br label %17, !llvm.loop !11

48:                                               ; preds = %21
  %49 = load i64, ptr %4, align 8, !tbaa !5
  %50 = icmp ne i64 %49, 0
  br i1 %50, label %51, label %59

51:                                               ; preds = %48
  %52 = load i64, ptr %5, align 8, !tbaa !5
  %53 = icmp ne i64 %52, 0
  br i1 %53, label %54, label %59

54:                                               ; preds = %51
  %55 = load i64, ptr %7, align 8, !tbaa !9
  %56 = load i64, ptr %4, align 8, !tbaa !5
  %57 = sub nsw i64 %55, %56
  %58 = add nsw i64 %57, 1
  br label %61

59:                                               ; preds = %51, %48
  %60 = load i64, ptr %6, align 8, !tbaa !5
  br label %61

61:                                               ; preds = %59, %54
  %62 = phi i64 [ %58, %54 ], [ %60, %59 ]
  %63 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %62)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  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 !13

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 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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 [6 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
  %.not26 = icmp eq i64 %5, 0
  br i1 %.not26, label %._crit_edge29, label %.lr.ph28

.lr.ph28:                                         ; preds = %0, %._crit_edge
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %8 = load i64, ptr %2, align 8, !tbaa !5
  %9 = icmp sgt i64 %8, 0
  br i1 %9, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.lr.ph28
  %.017.lcssa = phi i64 [ 0, %.lr.ph28 ], [ %20, %.lr.ph ]
  %.016.lcssa = phi i64 [ 0, %.lr.ph28 ], [ %21, %.lr.ph ]
  %.015.lcssa = phi i64 [ 0, %.lr.ph28 ], [ %22, %.lr.ph ]
  %.014.lcssa = phi i64 [ 0, %.lr.ph28 ], [ %23, %.lr.ph ]
  %10 = icmp ne i64 %.017.lcssa, 0
  %11 = icmp ne i64 %.016.lcssa, 0
  %or.cond = select i1 %10, i1 %11, i1 false
  %reass.sub30 = sub i64 %.014.lcssa, %.017.lcssa
  %12 = add i64 %reass.sub30, 1
  %13 = select i1 %or.cond, i64 %12, i64 %.015.lcssa
  %14 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %13)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  %15 = load i64, ptr %1, align 8, !tbaa !5
  %16 = add nsw i64 %15, -1
  store i64 %16, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %15, 0
  br i1 %.not, label %._crit_edge29, label %.lr.ph28, !llvm.loop !9

.lr.ph:                                           ; preds = %.lr.ph28, %.lr.ph
  %.022 = phi i64 [ %24, %.lr.ph ], [ 0, %.lr.ph28 ]
  %.01421 = phi i64 [ %23, %.lr.ph ], [ 0, %.lr.ph28 ]
  %.01520 = phi i64 [ %22, %.lr.ph ], [ 0, %.lr.ph28 ]
  %.01619 = phi i64 [ %21, %.lr.ph ], [ 0, %.lr.ph28 ]
  %.01718 = phi i64 [ %20, %.lr.ph ], [ 0, %.lr.ph28 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %3)
  %18 = load i64, ptr %3, align 8
  %19 = srem i64 %18, 2
  %20 = add nsw i64 %19, %.01718
  %reass.sub = add i64 %.01619, 1
  %21 = sub i64 %reass.sub, %19
  %22 = call i64 @llvm.smax.i64(i64 %.01520, i64 %18)
  %23 = add nsw i64 %18, %.01421
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  %24 = add nuw nsw i64 %.022, 1
  %25 = load i64, ptr %2, align 8, !tbaa !5
  %26 = icmp slt i64 %24, %25
  br i1 %26, label %.lr.ph, label %._crit_edge, !llvm.loop !11

._crit_edge29:                                    ; preds = %._crit_edge, %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.smax.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}


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