; LLVM IR from DionysiosB/CodeForces :: 0200-0299 (227B-EffectiveApproach)

; 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 [11 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 ptr, 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
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  store i64 0, ptr %2, align 8, !tbaa !5
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %10 = load i64, ptr %2, align 8, !tbaa !5
  %11 = add nsw i64 %10, 1
  %12 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %11, i64 8)
  %13 = extractvalue { i64, i1 } %12, 1
  %14 = extractvalue { i64, i1 } %12, 0
  %15 = select i1 %13, i64 -1, i64 %14
  %16 = call noalias noundef nonnull ptr @_Znam(i64 noundef %15) #6
  store ptr %16, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  store i64 0, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  store i64 1, ptr %5, align 8, !tbaa !5
  br label %17

17:                                               ; preds = %28, %0
  %18 = load i64, ptr %5, align 8, !tbaa !5
  %19 = load i64, ptr %2, align 8, !tbaa !5
  %20 = icmp sle i64 %18, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  br label %31

22:                                               ; preds = %17
  %23 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %4)
  %24 = load i64, ptr %5, align 8, !tbaa !5
  %25 = load ptr, ptr %3, align 8, !tbaa !9
  %26 = load i64, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds i64, ptr %25, i64 %26
  store i64 %24, ptr %27, align 8, !tbaa !5
  br label %28

28:                                               ; preds = %22
  %29 = load i64, ptr %5, align 8, !tbaa !5
  %30 = add nsw i64 %29, 1
  store i64 %30, ptr %5, align 8, !tbaa !5
  br label %17, !llvm.loop !11

31:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  store i64 0, ptr %6, align 8, !tbaa !5
  %32 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %6)
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  store i64 0, ptr %7, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  store i64 0, ptr %8, align 8, !tbaa !13
  br label %33

33:                                               ; preds = %37, %31
  %34 = load i64, ptr %6, align 8, !tbaa !5
  %35 = add nsw i64 %34, -1
  store i64 %35, ptr %6, align 8, !tbaa !5
  %36 = icmp ne i64 %34, 0
  br i1 %36, label %37, label %54

37:                                               ; preds = %33
  %38 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %4)
  %39 = load ptr, ptr %3, align 8, !tbaa !9
  %40 = load i64, ptr %4, align 8, !tbaa !5
  %41 = getelementptr inbounds i64, ptr %39, i64 %40
  %42 = load i64, ptr %41, align 8, !tbaa !5
  %43 = load i64, ptr %7, align 8, !tbaa !13
  %44 = add nsw i64 %43, %42
  store i64 %44, ptr %7, align 8, !tbaa !13
  %45 = load i64, ptr %2, align 8, !tbaa !5
  %46 = add nsw i64 %45, 1
  %47 = load ptr, ptr %3, align 8, !tbaa !9
  %48 = load i64, ptr %4, align 8, !tbaa !5
  %49 = getelementptr inbounds i64, ptr %47, i64 %48
  %50 = load i64, ptr %49, align 8, !tbaa !5
  %51 = sub nsw i64 %46, %50
  %52 = load i64, ptr %8, align 8, !tbaa !13
  %53 = add nsw i64 %52, %51
  store i64 %53, ptr %8, align 8, !tbaa !13
  br label %33, !llvm.loop !15

54:                                               ; preds = %33
  %55 = load i64, ptr %7, align 8, !tbaa !13
  %56 = load i64, ptr %8, align 8, !tbaa !13
  %57 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %55, i64 noundef %56)
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  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 speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #3

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #4

; 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { nobuiltin allocsize(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 #5 = { nounwind }
attributes #6 = { builtin allocsize(0) }

!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 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !14, i64 0}
!14 = !{!"long long", !7, i64 0}
!15 = distinct !{!15, !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 [11 x i8], align 1

; Function Attrs: mustprogress norecurse 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
  store i64 0, ptr %1, align 8, !tbaa !5
  %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
  %7 = icmp ugt i64 %6, 2305843009213693951
  %8 = shl i64 %6, 3
  %9 = select i1 %7, i64 -1, i64 %8
  %10 = call noalias noundef nonnull ptr @_Znam(i64 noundef %9) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  store i64 0, ptr %2, align 8, !tbaa !5
  %.not12 = icmp slt i64 %5, 1
  br i1 %.not12, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  store i64 0, ptr %3, align 8, !tbaa !5
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %3)
  %12 = load i64, ptr %3, align 8, !tbaa !5
  %13 = add nsw i64 %12, -1
  store i64 %13, ptr %3, align 8, !tbaa !5
  %.not1114 = icmp eq i64 %12, 0
  br i1 %.not1114, label %._crit_edge19, label %.lr.ph18

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.01013 = phi i64 [ %17, %.lr.ph ], [ 1, %0 ]
  %14 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %15 = load i64, ptr %2, align 8, !tbaa !5
  %16 = getelementptr inbounds i64, ptr %10, i64 %15
  store i64 %.01013, ptr %16, align 8, !tbaa !5
  %17 = add nuw nsw i64 %.01013, 1
  %18 = load i64, ptr %1, align 8, !tbaa !5
  %.not.not = icmp slt i64 %.01013, %18
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !9

.lr.ph18:                                         ; preds = %._crit_edge, %.lr.ph18
  %.016 = phi i64 [ %27, %.lr.ph18 ], [ 0, %._crit_edge ]
  %.0915 = phi i64 [ %23, %.lr.ph18 ], [ 0, %._crit_edge ]
  %19 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %20 = load i64, ptr %2, align 8, !tbaa !5
  %21 = getelementptr inbounds i64, ptr %10, i64 %20
  %22 = load i64, ptr %21, align 8, !tbaa !5
  %23 = add nsw i64 %22, %.0915
  %24 = load i64, ptr %1, align 8, !tbaa !5
  %25 = add i64 %.016, 1
  %26 = sub i64 %25, %22
  %27 = add i64 %26, %24
  %28 = load i64, ptr %3, align 8, !tbaa !5
  %29 = add nsw i64 %28, -1
  store i64 %29, ptr %3, align 8, !tbaa !5
  %.not11 = icmp eq i64 %28, 0
  br i1 %.not11, label %._crit_edge19, label %.lr.ph18, !llvm.loop !11

._crit_edge19:                                    ; preds = %.lr.ph18, %._crit_edge
  %.09.lcssa = phi i64 [ 0, %._crit_edge ], [ %23, %.lr.ph18 ]
  %.0.lcssa = phi i64 [ 0, %._crit_edge ], [ %27, %.lr.ph18 ]
  %30 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.09.lcssa, i64 noundef %.0.lcssa)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  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: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #3

; 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 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 = { 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 = { nobuiltin allocsize(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 #4 = { nounwind }
attributes #5 = { builtin allocsize(0) }

!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,ReassociatePass,SROAPass,SimplifyCFGPass