; LLVM IR from DionysiosB/CodeForces :: 0400-0499 (417C-Football)

; 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 [8 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [9 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 i32, align 4
  %6 = 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
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store i64 0, ptr %3, align 8, !tbaa !5
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %3)
  %8 = load i64, ptr %2, align 8, !tbaa !5
  %9 = sub nsw i64 %8, 1
  %10 = load i64, ptr %3, align 8, !tbaa !5
  %11 = mul nsw i64 2, %10
  %12 = icmp slt i64 %9, %11
  br i1 %12, label %13, label %15

13:                                               ; preds = %0
  %14 = call i32 @puts(ptr noundef @.str.1)
  br label %49

15:                                               ; preds = %0
  %16 = load i64, ptr %2, align 8, !tbaa !5
  %17 = load i64, ptr %3, align 8, !tbaa !5
  %18 = mul nsw i64 %16, %17
  %19 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %18)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 0, ptr %4, align 8, !tbaa !5
  br label %20

20:                                               ; preds = %45, %15
  %21 = load i64, ptr %4, align 8, !tbaa !5
  %22 = load i64, ptr %2, align 8, !tbaa !5
  %23 = icmp slt i64 %21, %22
  br i1 %23, label %25, label %24

24:                                               ; preds = %20
  store i32 2, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %48

25:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 1, ptr %6, align 8, !tbaa !5
  br label %26

26:                                               ; preds = %41, %25
  %27 = load i64, ptr %6, align 8, !tbaa !5
  %28 = load i64, ptr %3, align 8, !tbaa !5
  %29 = icmp sle i64 %27, %28
  br i1 %29, label %31, label %30

30:                                               ; preds = %26
  store i32 5, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %44

31:                                               ; preds = %26
  %32 = load i64, ptr %4, align 8, !tbaa !5
  %33 = add nsw i64 %32, 1
  %34 = load i64, ptr %4, align 8, !tbaa !5
  %35 = load i64, ptr %6, align 8, !tbaa !5
  %36 = add nsw i64 %34, %35
  %37 = load i64, ptr %2, align 8, !tbaa !5
  %38 = srem i64 %36, %37
  %39 = add nsw i64 1, %38
  %40 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i64 noundef %33, i64 noundef %39)
  br label %41

41:                                               ; preds = %31
  %42 = load i64, ptr %6, align 8, !tbaa !5
  %43 = add nsw i64 %42, 1
  store i64 %43, ptr %6, align 8, !tbaa !5
  br label %26, !llvm.loop !9

44:                                               ; preds = %30
  br label %45

45:                                               ; preds = %44
  %46 = load i64, ptr %4, align 8, !tbaa !5
  %47 = add nsw i64 %46, 1
  store i64 %47, ptr %4, align 8, !tbaa !5
  br label %20, !llvm.loop !11

48:                                               ; preds = %24
  br label %49

49:                                               ; preds = %48, %13
  store i32 0, ptr %1, align 4
  store i32 1, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %50 = load i32, ptr %1, align 4
  ret i32 %50
}

; 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 @puts(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"}
!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 [8 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [9 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  store i64 0, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  store i64 0, ptr %2, align 8, !tbaa !5
  %3 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2)
  %4 = load i64, ptr %1, align 8, !tbaa !5
  %5 = load i64, ptr %2, align 8, !tbaa !5
  %6 = shl nsw i64 %5, 1
  %.not = icmp sgt i64 %4, %6
  br i1 %.not, label %9, label %7

7:                                                ; preds = %0
  %8 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.1)
  br label %.loopexit

9:                                                ; preds = %0
  %10 = mul nsw i64 %5, %4
  %11 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %10)
  %12 = load i64, ptr %1, align 8, !tbaa !5
  %13 = icmp slt i64 %12, 1
  %14 = load i64, ptr %2, align 8
  %15 = icmp slt i64 %14, 1
  %or.cond = select i1 %13, i1 true, i1 %15
  br i1 %or.cond, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %9, %._crit_edge
  %16 = phi i64 [ %18, %._crit_edge ], [ %12, %9 ]
  %17 = phi i64 [ %19, %._crit_edge ], [ %14, %9 ]
  %.0812 = phi i64 [ %.pre14, %._crit_edge ], [ 0, %9 ]
  %.not910 = icmp slt i64 %17, 1
  %.pre14 = add nuw nsw i64 %.0812, 1
  br i1 %.not910, label %._crit_edge, label %.lr.ph

._crit_edge.loopexit:                             ; preds = %.lr.ph
  %.pre = load i64, ptr %1, align 8, !tbaa !5
  br label %._crit_edge

._crit_edge:                                      ; preds = %.preheader, %._crit_edge.loopexit
  %18 = phi i64 [ %.pre, %._crit_edge.loopexit ], [ %16, %.preheader ]
  %19 = phi i64 [ %27, %._crit_edge.loopexit ], [ %17, %.preheader ]
  %20 = icmp slt i64 %.pre14, %18
  br i1 %20, label %.preheader, label %.loopexit, !llvm.loop !9

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %.011 = phi i64 [ %26, %.lr.ph ], [ 1, %.preheader ]
  %21 = add nuw nsw i64 %.011, %.0812
  %22 = load i64, ptr %1, align 8, !tbaa !5
  %23 = srem i64 %21, %22
  %24 = add nuw nsw i64 %23, 1
  %25 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i64 noundef %.pre14, i64 noundef %24)
  %26 = add nuw nsw i64 %.011, 1
  %27 = load i64, ptr %2, align 8, !tbaa !5
  %.not9.not = icmp slt i64 %.011, %27
  br i1 %.not9.not, label %.lr.ph, label %._crit_edge.loopexit, !llvm.loop !12

.loopexit:                                        ; preds = %._crit_edge, %9, %7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  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 @puts(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, !11}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!"llvm.loop.unswitch.partial.disable"}
!12 = distinct !{!12, !10}


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