; LLVM IR from DionysiosB/CodeForces :: 0100-0199 (172B-PseudorandomSequencePeriod)

; 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 [16 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 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 ptr, 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) #5
  store i64 0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  store i64 0, ptr %3, align 8, !tbaa !5
  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 0, ptr %5, align 8, !tbaa !5
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %5)
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %11 = load i64, ptr %4, align 8, !tbaa !5
  %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 %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  store i64 0, ptr %7, align 8, !tbaa !5
  br label %17

17:                                               ; preds = %26, %0
  %18 = load i64, ptr %7, align 8, !tbaa !5
  %19 = load i64, ptr %4, 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 %7) #5
  br label %29

22:                                               ; preds = %17
  %23 = load ptr, ptr %6, align 8, !tbaa !9
  %24 = load i64, ptr %7, align 8, !tbaa !5
  %25 = getelementptr inbounds i64, ptr %23, i64 %24
  store i64 0, ptr %25, align 8, !tbaa !5
  br label %26

26:                                               ; preds = %22
  %27 = load i64, ptr %7, align 8, !tbaa !5
  %28 = add nsw i64 %27, 1
  store i64 %28, ptr %7, align 8, !tbaa !5
  br label %17, !llvm.loop !11

29:                                               ; preds = %21
  %30 = load ptr, ptr %6, align 8, !tbaa !9
  %31 = load i64, ptr %5, align 8, !tbaa !5
  %32 = getelementptr inbounds i64, ptr %30, i64 %31
  store i64 1, ptr %32, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  store i64 0, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  store i64 1, ptr %9, align 8, !tbaa !5
  br label %33

33:                                               ; preds = %59, %29
  %34 = load i64, ptr %9, align 8, !tbaa !5
  %35 = add nsw i64 %34, 1
  store i64 %35, ptr %9, align 8, !tbaa !5
  %36 = load i64, ptr %4, align 8, !tbaa !5
  %37 = mul nsw i64 2, %36
  %38 = icmp sle i64 %35, %37
  br i1 %38, label %39, label %64

39:                                               ; preds = %33
  %40 = load i64, ptr %2, align 8, !tbaa !5
  %41 = load i64, ptr %5, align 8, !tbaa !5
  %42 = mul nsw i64 %40, %41
  %43 = load i64, ptr %3, align 8, !tbaa !5
  %44 = add nsw i64 %42, %43
  %45 = load i64, ptr %4, align 8, !tbaa !5
  %46 = srem i64 %44, %45
  store i64 %46, ptr %5, align 8, !tbaa !5
  %47 = load ptr, ptr %6, align 8, !tbaa !9
  %48 = load i64, ptr %5, align 8, !tbaa !5
  %49 = getelementptr inbounds i64, ptr %47, i64 %48
  %50 = load i64, ptr %49, align 8, !tbaa !5
  %51 = icmp sgt i64 %50, 0
  br i1 %51, label %52, label %59

52:                                               ; preds = %39
  %53 = load i64, ptr %9, align 8, !tbaa !5
  %54 = load ptr, ptr %6, align 8, !tbaa !9
  %55 = load i64, ptr %5, align 8, !tbaa !5
  %56 = getelementptr inbounds i64, ptr %54, i64 %55
  %57 = load i64, ptr %56, align 8, !tbaa !5
  %58 = sub nsw i64 %53, %57
  store i64 %58, ptr %8, align 8, !tbaa !5
  br label %64

59:                                               ; preds = %39
  %60 = load i64, ptr %9, align 8, !tbaa !5
  %61 = load ptr, ptr %6, align 8, !tbaa !9
  %62 = load i64, ptr %5, align 8, !tbaa !5
  %63 = getelementptr inbounds i64, ptr %61, i64 %62
  store i64 %60, ptr %63, align 8, !tbaa !5
  br label %33, !llvm.loop !13

64:                                               ; preds = %52, %33
  %65 = load i64, ptr %8, align 8, !tbaa !5
  %66 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %65)
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #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 = 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 [16 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 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
  %4 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  store i64 0, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  store i64 0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  store i64 0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  store i64 0, ptr %4, align 8, !tbaa !5
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2, ptr noundef nonnull %3, ptr noundef nonnull %4)
  %6 = load i64, ptr %3, align 8, !tbaa !5
  %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) #7
  %11 = icmp sgt i64 %6, 0
  br i1 %11, label %.lr.ph20, label %.loopexit

.lr.ph20:                                         ; preds = %0
  call void @llvm.memset.p0.i64(ptr nonnull align 8 %10, i8 0, i64 %8, i1 false), !tbaa !5
  %12 = load i64, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds i64, ptr %10, i64 %12
  store i64 1, ptr %13, align 8, !tbaa !5
  %14 = shl nuw i64 %6, 1
  %15 = load i64, ptr %1, align 8, !tbaa !5
  %16 = load i64, ptr %2, align 8, !tbaa !5
  %smax = call i64 @llvm.smax.i64(i64 %14, i64 2)
  br label %17

17:                                               ; preds = %.lr.ph20, %28
  %18 = phi i64 [ 2, %.lr.ph20 ], [ %29, %28 ]
  %19 = phi i64 [ %12, %.lr.ph20 ], [ %22, %28 ]
  %20 = mul nsw i64 %19, %15
  %21 = add nsw i64 %20, %16
  %22 = srem i64 %21, %6
  %23 = getelementptr inbounds i64, ptr %10, i64 %22
  %24 = load i64, ptr %23, align 8, !tbaa !5
  %25 = icmp sgt i64 %24, 0
  br i1 %25, label %26, label %28

26:                                               ; preds = %17
  store i64 %22, ptr %4, align 8, !tbaa !5
  %27 = sub nsw i64 %18, %24
  br label %.loopexit

28:                                               ; preds = %17
  store i64 %18, ptr %23, align 8, !tbaa !5
  %29 = add nuw nsw i64 %18, 1
  %exitcond.not = icmp eq i64 %18, %smax
  br i1 %exitcond.not, label %..loopexit_crit_edge, label %17, !llvm.loop !9

..loopexit_crit_edge:                             ; preds = %28
  store i64 %22, ptr %4, align 8, !tbaa !5
  br label %.loopexit

.loopexit:                                        ; preds = %0, %..loopexit_crit_edge, %26
  %.011 = phi i64 [ %27, %26 ], [ 0, %..loopexit_crit_edge ], [ 0, %0 ]
  %30 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.011)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  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

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #4

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.smax.i64(i64, i64) #5

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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #5 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #6 = { nounwind }
attributes #7 = { 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"}


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