; LLVM IR from DionysiosB/CodeForces :: 0200-0299 (238A-NotWoolSequences)

; 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 [10 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 i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  store i64 1000000009, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3, ptr noundef %4)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 1, ptr %5, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %13, %0
  %10 = load i64, ptr %4, align 8, !tbaa !5
  %11 = add nsw i64 %10, -1
  store i64 %11, ptr %4, align 8, !tbaa !5
  %12 = icmp ne i64 %10, 0
  br i1 %12, label %13, label %18

13:                                               ; preds = %9
  %14 = load i64, ptr %5, align 8, !tbaa !5
  %15 = mul nsw i64 %14, 2
  store i64 %15, ptr %5, align 8, !tbaa !5
  %16 = load i64, ptr %5, align 8, !tbaa !5
  %17 = srem i64 %16, 1000000009
  store i64 %17, ptr %5, align 8, !tbaa !5
  br label %9, !llvm.loop !9

18:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 1, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 1, ptr %7, align 4, !tbaa !11
  br label %19

19:                                               ; preds = %34, %18
  %20 = load i32, ptr %7, align 4, !tbaa !11
  %21 = sext i32 %20 to i64
  %22 = load i64, ptr %3, align 8, !tbaa !5
  %23 = icmp sle i64 %21, %22
  br i1 %23, label %25, label %24

24:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %37

25:                                               ; preds = %19
  %26 = load i64, ptr %5, align 8, !tbaa !5
  %27 = load i32, ptr %7, align 4, !tbaa !11
  %28 = sext i32 %27 to i64
  %29 = sub nsw i64 %26, %28
  %30 = load i64, ptr %6, align 8, !tbaa !5
  %31 = mul nsw i64 %30, %29
  store i64 %31, ptr %6, align 8, !tbaa !5
  %32 = load i64, ptr %6, align 8, !tbaa !5
  %33 = srem i64 %32, 1000000009
  store i64 %33, ptr %6, align 8, !tbaa !5
  br label %34

34:                                               ; preds = %25
  %35 = load i32, ptr %7, align 4, !tbaa !11
  %36 = add nsw i32 %35, 1
  store i32 %36, ptr %7, align 4, !tbaa !11
  br label %19, !llvm.loop !13

37:                                               ; preds = %24
  %38 = load i64, ptr %6, align 8, !tbaa !5
  %39 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %38)
  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
  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

; 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 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !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 [10 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %3 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2)
  %.pr = load i64, ptr %2, align 8, !tbaa !5
  %.not13 = icmp eq i64 %.pr, 0
  br i1 %.not13, label %.preheader, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %0
  %xtraiter = and i64 %.pr, 3
  %4 = icmp ult i64 %.pr, 4
  br i1 %4, label %.preheader.loopexit.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %unroll_iter = and i64 %.pr, -4
  br label %.lr.ph

.preheader.loopexit.unr-lcssa:                    ; preds = %.lr.ph, %.lr.ph.preheader
  %.lcssa27.ph = phi i64 [ poison, %.lr.ph.preheader ], [ %16, %.lr.ph ]
  %.01014.unr = phi i64 [ 1, %.lr.ph.preheader ], [ %16, %.lr.ph ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.preheader, label %.lr.ph.epil

.lr.ph.epil:                                      ; preds = %.preheader.loopexit.unr-lcssa, %.lr.ph.epil
  %.01014.epil = phi i64 [ %6, %.lr.ph.epil ], [ %.01014.unr, %.preheader.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph.epil ], [ 0, %.preheader.loopexit.unr-lcssa ]
  %5 = shl nsw i64 %.01014.epil, 1
  %6 = srem i64 %5, 1000000009
  %epil.iter.next = add i64 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i64 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %.preheader, label %.lr.ph.epil, !llvm.loop !9

.preheader:                                       ; preds = %.preheader.loopexit.unr-lcssa, %.lr.ph.epil, %0
  %.010.lcssa = phi i64 [ 1, %0 ], [ %.lcssa27.ph, %.preheader.loopexit.unr-lcssa ], [ %6, %.lr.ph.epil ]
  store i64 -1, ptr %2, align 8, !tbaa !5
  %7 = load i64, ptr %1, align 8, !tbaa !5
  %.not1216 = icmp slt i64 %7, 1
  br i1 %.not1216, label %._crit_edge, label %.lr.ph19.preheader

.lr.ph19.preheader:                               ; preds = %.preheader
  %xtraiter29 = and i64 %7, 1
  %8 = icmp eq i64 %7, 1
  br i1 %8, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph19.preheader.new

.lr.ph19.preheader.new:                           ; preds = %.lr.ph19.preheader
  %unroll_iter33 = and i64 %7, 9223372036854775806
  br label %.lr.ph19

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %.01014 = phi i64 [ 1, %.lr.ph.preheader.new ], [ %16, %.lr.ph ]
  %niter = phi i64 [ 0, %.lr.ph.preheader.new ], [ %niter.next.3, %.lr.ph ]
  %9 = shl nsw i64 %.01014, 1
  %10 = srem i64 %9, 1000000009
  %11 = shl nsw i64 %10, 1
  %12 = srem i64 %11, 1000000009
  %13 = shl nsw i64 %12, 1
  %14 = srem i64 %13, 1000000009
  %15 = shl nsw i64 %14, 1
  %16 = srem i64 %15, 1000000009
  %niter.next.3 = add i64 %niter, 4
  %niter.ncmp.3 = icmp eq i64 %niter.next.3, %unroll_iter
  br i1 %niter.ncmp.3, label %.preheader.loopexit.unr-lcssa, label %.lr.ph, !llvm.loop !11

._crit_edge.loopexit.unr-lcssa:                   ; preds = %.lr.ph19, %.lr.ph19.preheader
  %.lcssa.ph = phi i64 [ poison, %.lr.ph19.preheader ], [ %26, %.lr.ph19 ]
  %indvars.iv.unr = phi i64 [ 1, %.lr.ph19.preheader ], [ %indvars.iv.next.1, %.lr.ph19 ]
  %.0917.unr = phi i64 [ 1, %.lr.ph19.preheader ], [ %26, %.lr.ph19 ]
  %lcmp.mod31.not = icmp eq i64 %xtraiter29, 0
  br i1 %lcmp.mod31.not, label %._crit_edge, label %.lr.ph19.epil

.lr.ph19.epil:                                    ; preds = %._crit_edge.loopexit.unr-lcssa
  %17 = sub nsw i64 %.010.lcssa, %indvars.iv.unr
  %18 = mul nsw i64 %17, %.0917.unr
  %19 = srem i64 %18, 1000000009
  br label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph19.epil, %._crit_edge.loopexit.unr-lcssa, %.preheader
  %.09.lcssa = phi i64 [ 1, %.preheader ], [ %.lcssa.ph, %._crit_edge.loopexit.unr-lcssa ], [ %19, %.lr.ph19.epil ]
  %20 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.09.lcssa)
  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

.lr.ph19:                                         ; preds = %.lr.ph19, %.lr.ph19.preheader.new
  %indvars.iv = phi i64 [ 1, %.lr.ph19.preheader.new ], [ %indvars.iv.next.1, %.lr.ph19 ]
  %.0917 = phi i64 [ 1, %.lr.ph19.preheader.new ], [ %26, %.lr.ph19 ]
  %niter34 = phi i64 [ 0, %.lr.ph19.preheader.new ], [ %niter34.next.1, %.lr.ph19 ]
  %21 = sub nsw i64 %.010.lcssa, %indvars.iv
  %22 = mul nsw i64 %21, %.0917
  %23 = srem i64 %22, 1000000009
  %indvars.iv.next.neg = xor i64 %indvars.iv, -1
  %24 = add i64 %.010.lcssa, %indvars.iv.next.neg
  %25 = mul nsw i64 %24, %23
  %26 = srem i64 %25, 1000000009
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %niter34.next.1 = add i64 %niter34, 2
  %niter34.ncmp.1 = icmp eq i64 %niter34.next.1, %unroll_iter33
  br i1 %niter34.ncmp.1, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph19, !llvm.loop !13
}

; 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

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.unroll.disable"}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


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