; LLVM IR from bartobri/data-structures-c :: symbol-table/patricia-trie (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"

%struct.anon = type { i32, i32 }

@.str.2 = external hidden unnamed_addr constant [32 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [29 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @visit(ptr noundef) #0

declare i32 @printf(ptr noundef, ...) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  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 8, ptr %3) #5
  %4 = call i64 @time(ptr noundef null) #5
  %5 = trunc i64 %4 to i32
  call void @srand(i32 noundef %5) #5
  call void @STinit()
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %6

6:                                                ; preds = %19, %0
  %7 = load i32, ptr %2, align 4, !tbaa !5
  %8 = icmp slt i32 %7, 20
  br i1 %8, label %9, label %22

9:                                                ; preds = %6
  %10 = call noalias ptr @malloc(i64 noundef 8) #6
  store ptr %10, ptr %3, align 8, !tbaa !9
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = load ptr, ptr %3, align 8, !tbaa !9
  %13 = getelementptr inbounds %struct.anon, ptr %12, i32 0, i32 0
  store i32 %11, ptr %13, align 4, !tbaa !11
  %14 = call i32 @rand() #5
  %15 = srem i32 %14, 1000
  %16 = load ptr, ptr %3, align 8, !tbaa !9
  %17 = getelementptr inbounds %struct.anon, ptr %16, i32 0, i32 1
  store i32 %15, ptr %17, align 4, !tbaa !13
  %18 = load ptr, ptr %3, align 8, !tbaa !9
  call void @STinsert(ptr noundef %18)
  br label %19

19:                                               ; preds = %9
  %20 = load i32, ptr %2, align 4, !tbaa !5
  %21 = add nsw i32 %20, 1
  store i32 %21, ptr %2, align 4, !tbaa !5
  br label %6, !llvm.loop !14

22:                                               ; preds = %6
  call void @STsort(ptr noundef @visit)
  %23 = call ptr @STselect(i32 noundef 10)
  store ptr %23, ptr %3, align 8, !tbaa !9
  %24 = load ptr, ptr %3, align 8, !tbaa !9
  %25 = icmp eq ptr %24, null
  br i1 %25, label %26, label %28

26:                                               ; preds = %22
  %27 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  br label %33

28:                                               ; preds = %22
  %29 = load ptr, ptr %3, align 8, !tbaa !9
  %30 = getelementptr inbounds %struct.anon, ptr %29, i32 0, i32 0
  %31 = load i32, ptr %30, align 4, !tbaa !11
  %32 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i32 noundef %31)
  br label %33

33:                                               ; preds = %28, %26
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4, 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) #2

; Function Attrs: nounwind
declare void @srand(i32 noundef) #3

; Function Attrs: nounwind
declare i64 @time(ptr noundef) #3

declare void @STinit() #1

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #4

; Function Attrs: nounwind
declare i32 @rand() #3

declare void @STinsert(ptr noundef) #1

declare void @STsort(ptr noundef) #1

declare ptr @STselect(i32 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

attributes #0 = { 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 = { "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 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 = { nounwind 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"", !6, i64 0, !6, i64 4}
!13 = !{!12, !6, i64 4}
!14 = distinct !{!14, !15}
!15 = !{!"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"

@.str.2 = external hidden unnamed_addr constant [32 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [29 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @visit(ptr noundef) #0

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = tail call i64 @time(ptr noundef null) #5
  %2 = trunc i64 %1 to i32
  tail call void @srand(i32 noundef %2) #5
  tail call void @STinit() #5
  %3 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 0, ptr %3, align 4, !tbaa !5
  %4 = tail call i32 @rand() #5
  %5 = srem i32 %4, 1000
  %6 = getelementptr inbounds i8, ptr %3, i64 4
  store i32 %5, ptr %6, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %3) #5
  %7 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 1, ptr %7, align 4, !tbaa !5
  %8 = tail call i32 @rand() #5
  %9 = srem i32 %8, 1000
  %10 = getelementptr inbounds i8, ptr %7, i64 4
  store i32 %9, ptr %10, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %7) #5
  %11 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 2, ptr %11, align 4, !tbaa !5
  %12 = tail call i32 @rand() #5
  %13 = srem i32 %12, 1000
  %14 = getelementptr inbounds i8, ptr %11, i64 4
  store i32 %13, ptr %14, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %11) #5
  %15 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 3, ptr %15, align 4, !tbaa !5
  %16 = tail call i32 @rand() #5
  %17 = srem i32 %16, 1000
  %18 = getelementptr inbounds i8, ptr %15, i64 4
  store i32 %17, ptr %18, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %15) #5
  %19 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 4, ptr %19, align 4, !tbaa !5
  %20 = tail call i32 @rand() #5
  %21 = srem i32 %20, 1000
  %22 = getelementptr inbounds i8, ptr %19, i64 4
  store i32 %21, ptr %22, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %19) #5
  %23 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 5, ptr %23, align 4, !tbaa !5
  %24 = tail call i32 @rand() #5
  %25 = srem i32 %24, 1000
  %26 = getelementptr inbounds i8, ptr %23, i64 4
  store i32 %25, ptr %26, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %23) #5
  %27 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 6, ptr %27, align 4, !tbaa !5
  %28 = tail call i32 @rand() #5
  %29 = srem i32 %28, 1000
  %30 = getelementptr inbounds i8, ptr %27, i64 4
  store i32 %29, ptr %30, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %27) #5
  %31 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 7, ptr %31, align 4, !tbaa !5
  %32 = tail call i32 @rand() #5
  %33 = srem i32 %32, 1000
  %34 = getelementptr inbounds i8, ptr %31, i64 4
  store i32 %33, ptr %34, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %31) #5
  %35 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 8, ptr %35, align 4, !tbaa !5
  %36 = tail call i32 @rand() #5
  %37 = srem i32 %36, 1000
  %38 = getelementptr inbounds i8, ptr %35, i64 4
  store i32 %37, ptr %38, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %35) #5
  %39 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 9, ptr %39, align 4, !tbaa !5
  %40 = tail call i32 @rand() #5
  %41 = srem i32 %40, 1000
  %42 = getelementptr inbounds i8, ptr %39, i64 4
  store i32 %41, ptr %42, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %39) #5
  %43 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 10, ptr %43, align 4, !tbaa !5
  %44 = tail call i32 @rand() #5
  %45 = srem i32 %44, 1000
  %46 = getelementptr inbounds i8, ptr %43, i64 4
  store i32 %45, ptr %46, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %43) #5
  %47 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 11, ptr %47, align 4, !tbaa !5
  %48 = tail call i32 @rand() #5
  %49 = srem i32 %48, 1000
  %50 = getelementptr inbounds i8, ptr %47, i64 4
  store i32 %49, ptr %50, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %47) #5
  %51 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 12, ptr %51, align 4, !tbaa !5
  %52 = tail call i32 @rand() #5
  %53 = srem i32 %52, 1000
  %54 = getelementptr inbounds i8, ptr %51, i64 4
  store i32 %53, ptr %54, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %51) #5
  %55 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 13, ptr %55, align 4, !tbaa !5
  %56 = tail call i32 @rand() #5
  %57 = srem i32 %56, 1000
  %58 = getelementptr inbounds i8, ptr %55, i64 4
  store i32 %57, ptr %58, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %55) #5
  %59 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 14, ptr %59, align 4, !tbaa !5
  %60 = tail call i32 @rand() #5
  %61 = srem i32 %60, 1000
  %62 = getelementptr inbounds i8, ptr %59, i64 4
  store i32 %61, ptr %62, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %59) #5
  %63 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 15, ptr %63, align 4, !tbaa !5
  %64 = tail call i32 @rand() #5
  %65 = srem i32 %64, 1000
  %66 = getelementptr inbounds i8, ptr %63, i64 4
  store i32 %65, ptr %66, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %63) #5
  %67 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 16, ptr %67, align 4, !tbaa !5
  %68 = tail call i32 @rand() #5
  %69 = srem i32 %68, 1000
  %70 = getelementptr inbounds i8, ptr %67, i64 4
  store i32 %69, ptr %70, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %67) #5
  %71 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 17, ptr %71, align 4, !tbaa !5
  %72 = tail call i32 @rand() #5
  %73 = srem i32 %72, 1000
  %74 = getelementptr inbounds i8, ptr %71, i64 4
  store i32 %73, ptr %74, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %71) #5
  %75 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 18, ptr %75, align 4, !tbaa !5
  %76 = tail call i32 @rand() #5
  %77 = srem i32 %76, 1000
  %78 = getelementptr inbounds i8, ptr %75, i64 4
  store i32 %77, ptr %78, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %75) #5
  %79 = tail call noalias dereferenceable_or_null(8) ptr @malloc(i64 noundef 8) #6
  store i32 19, ptr %79, align 4, !tbaa !5
  %80 = tail call i32 @rand() #5
  %81 = srem i32 %80, 1000
  %82 = getelementptr inbounds i8, ptr %79, i64 4
  store i32 %81, ptr %82, align 4, !tbaa !10
  tail call void @STinsert(ptr noundef nonnull %79) #5
  tail call void @STsort(ptr noundef nonnull @visit) #5
  %83 = tail call ptr @STselect(i32 noundef 10) #5
  %84 = icmp eq ptr %83, null
  br i1 %84, label %85, label %87

85:                                               ; preds = %0
  %86 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  br label %90

87:                                               ; preds = %0
  %88 = load i32, ptr %83, align 4, !tbaa !5
  %89 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i32 noundef %88)
  br label %90

90:                                               ; preds = %87, %85
  ret i32 0
}

; Function Attrs: nounwind
declare void @srand(i32 noundef) local_unnamed_addr #2

; Function Attrs: nounwind
declare i64 @time(ptr noundef) local_unnamed_addr #2

declare void @STinit() local_unnamed_addr #3

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #4

; Function Attrs: nounwind
declare i32 @rand() local_unnamed_addr #2

declare void @STinsert(ptr noundef) local_unnamed_addr #3

declare void @STsort(ptr noundef) local_unnamed_addr #3

declare ptr @STselect(i32 noundef) local_unnamed_addr #3

attributes #0 = { 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 = { 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 #2 = { 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 = { "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 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { nounwind 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, !7, i64 0}
!6 = !{!"", !7, i64 0, !7, i64 4}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 4}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass