; LLVM IR from DionysiosB/CodeForces :: 0400-0499/488A-GigaTower.ll (Z7isLuckyli)

; 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"

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_Z7isLuckyli(i64 noundef %0, i32 noundef %1) #0 {
  %3 = alloca i1, align 1
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  store i64 %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %6 = load i64, ptr %4, align 8, !tbaa !5
  %7 = icmp slt i64 %6, 0
  br i1 %7, label %8, label %11

8:                                                ; preds = %2
  %9 = load i64, ptr %4, align 8, !tbaa !5
  %10 = sub nsw i64 0, %9
  store i64 %10, ptr %4, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %8, %2
  br label %12

12:                                               ; preds = %25, %11
  %13 = load i64, ptr %4, align 8, !tbaa !5
  %14 = icmp sgt i64 %13, 0
  br i1 %14, label %15, label %26

15:                                               ; preds = %12
  %16 = load i64, ptr %4, align 8, !tbaa !5
  %17 = srem i64 %16, 10
  %18 = load i32, ptr %5, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = icmp eq i64 %17, %19
  br i1 %20, label %21, label %22

21:                                               ; preds = %15
  store i1 true, ptr %3, align 1
  br label %27

22:                                               ; preds = %15
  %23 = load i64, ptr %4, align 8, !tbaa !5
  %24 = sdiv i64 %23, 10
  store i64 %24, ptr %4, align 8, !tbaa !5
  br label %25

25:                                               ; preds = %22
  br label %12, !llvm.loop !11

26:                                               ; preds = %12
  store i1 false, ptr %3, align 1
  br label %27

27:                                               ; preds = %26, %21
  %28 = load i1, ptr %3, align 1
  ret i1 %28
}

attributes #0 = { mustprogress 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" }

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


; 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef zeroext i1 @_Z7isLuckyli(i64 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %.not = icmp eq i64 %0, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %spec.select = tail call i64 @llvm.abs.i64(i64 %0, i1 true)
  %3 = sext i32 %1 to i64
  br label %4

4:                                                ; preds = %4, %.lr.ph
  %.19 = phi i64 [ %spec.select, %.lr.ph ], [ %7, %4 ]
  %5 = urem i64 %.19, 10
  %6 = icmp eq i64 %5, %3
  %7 = udiv i64 %.19, 10
  %8 = icmp ult i64 %.19, 10
  %or.cond.not = or i1 %8, %6
  br i1 %or.cond.not, label %._crit_edge, label %4, !llvm.loop !5

._crit_edge:                                      ; preds = %4, %2
  %.lcssa = phi i1 [ false, %2 ], [ %6, %4 ]
  ret i1 %.lcssa
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.abs.i64(i64, i1 immarg) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) 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 speculatable willreturn memory(none) }

!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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,GVNPass,GlobalOptPass,IPSCCPPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass