; LLVM IR from Dev-XYS/Algorithms :: Persistent-Treap (main)

; 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"

@root = external dso_local global [100000 x ptr], align 16
@hs = external dso_local global i32, align 4
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [22 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [18 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z6insertRP4nodeS0_ii(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef, i32 noundef, i32 noundef) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z4findRP4nodei(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  br label %5

5:                                                ; preds = %50, %0
  br label %6

6:                                                ; preds = %5
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = icmp eq i32 %8, 1
  br i1 %9, label %10, label %24

10:                                               ; preds = %6
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %4)
  %12 = load i32, ptr @hs, align 4, !tbaa !5
  %13 = add nsw i32 %12, 1
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds [100000 x ptr], ptr @root, i64 0, i64 %14
  %16 = load i32, ptr @hs, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [100000 x ptr], ptr @root, i64 0, i64 %17
  %19 = load ptr, ptr %18, align 8, !tbaa !9
  %20 = load i32, ptr %4, align 4, !tbaa !5
  %21 = call i32 @rand() #5
  call void @_Z6insertRP4nodeS0_ii(ptr noundef nonnull align 8 dereferenceable(8) %15, ptr noundef %19, i32 noundef %20, i32 noundef %21)
  %22 = load i32, ptr @hs, align 4, !tbaa !5
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr @hs, align 4, !tbaa !5
  br label %50

24:                                               ; preds = %6
  %25 = load i32, ptr %2, align 4, !tbaa !5
  %26 = icmp eq i32 %25, 2
  br i1 %26, label %27, label %35

27:                                               ; preds = %24
  %28 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %3, ptr noundef %4)
  %29 = load i32, ptr %3, align 4, !tbaa !5
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds [100000 x ptr], ptr @root, i64 0, i64 %30
  %32 = load i32, ptr %4, align 4, !tbaa !5
  %33 = call noundef i32 @_Z4findRP4nodei(ptr noundef nonnull align 8 dereferenceable(8) %31, i32 noundef %32)
  %34 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i32 noundef %33)
  br label %49

35:                                               ; preds = %24
  %36 = load i32, ptr %2, align 4, !tbaa !5
  %37 = icmp eq i32 %36, 3
  br i1 %37, label %38, label %41

38:                                               ; preds = %35
  %39 = load i32, ptr @hs, align 4, !tbaa !5
  %40 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i32 noundef %39)
  br label %48

41:                                               ; preds = %35
  %42 = load i32, ptr %2, align 4, !tbaa !5
  %43 = icmp eq i32 %42, 0
  br i1 %43, label %44, label %45

44:                                               ; preds = %41
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  ret i32 0

45:                                               ; preds = %41
  %46 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  br label %47

47:                                               ; preds = %45
  br label %48

48:                                               ; preds = %47, %38
  br label %49

49:                                               ; preds = %48, %27
  br label %50

50:                                               ; preds = %49, %10
  br label %5, !llvm.loop !11
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #3

; Function Attrs: nounwind
declare i32 @rand() #4

declare i32 @printf(ptr noundef, ...) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 #2 = { 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 #3 = { "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 "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 }

!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 = !{!"int", !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"}


; 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"

@root = external dso_local global [100000 x ptr], align 16
@hs = external dso_local local_unnamed_addr global i32, align 4
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [22 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [18 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z6insertRP4nodeS0_ii(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z4findRP4nodei(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #5
  br label %4

4:                                                ; preds = %.backedge, %0
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %6 = load i32, ptr %1, align 4, !tbaa !5
  switch i32 %6, label %32 [
    i32 1, label %7
    i32 2, label %20
    i32 3, label %28
    i32 0, label %31
  ]

7:                                                ; preds = %4
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %3)
  %9 = load i32, ptr @hs, align 4, !tbaa !5
  %10 = add nsw i32 %9, 1
  %11 = sext i32 %10 to i64
  %12 = getelementptr inbounds [100000 x ptr], ptr @root, i64 0, i64 %11
  %13 = sext i32 %9 to i64
  %14 = getelementptr inbounds [100000 x ptr], ptr @root, i64 0, i64 %13
  %15 = load ptr, ptr %14, align 8, !tbaa !9
  %16 = load i32, ptr %3, align 4, !tbaa !5
  %17 = call i32 @rand() #5
  call void @_Z6insertRP4nodeS0_ii(ptr noundef nonnull align 8 dereferenceable(8) %12, ptr noundef %15, i32 noundef %16, i32 noundef %17)
  %18 = load i32, ptr @hs, align 4, !tbaa !5
  %19 = add nsw i32 %18, 1
  store i32 %19, ptr @hs, align 4, !tbaa !5
  br label %.backedge

20:                                               ; preds = %4
  %21 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2, ptr noundef nonnull %3)
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds [100000 x ptr], ptr @root, i64 0, i64 %23
  %25 = load i32, ptr %3, align 4, !tbaa !5
  %26 = call noundef i32 @_Z4findRP4nodei(ptr noundef nonnull align 8 dereferenceable(8) %24, i32 noundef %25)
  %27 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i32 noundef %26)
  br label %.backedge

.backedge:                                        ; preds = %20, %32, %28, %7
  br label %4, !llvm.loop !11

28:                                               ; preds = %4
  %29 = load i32, ptr @hs, align 4, !tbaa !5
  %30 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i32 noundef %29)
  br label %.backedge

31:                                               ; preds = %4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #5
  ret i32 0

32:                                               ; preds = %4
  %33 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4)
  br label %.backedge
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

; Function Attrs: nounwind
declare i32 @rand() local_unnamed_addr #4

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 #2 = { 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 #3 = { 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 #4 = { 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 #5 = { 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 = !{!"int", !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"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,LoopUnrollPass,SROAPass,SimplifyCFGPass