; LLVM IR from codemistic/Data-Structures-and-Algorithms :: CPP/BST/InsertionInABST.ll (Z6insertP4nodei)

; 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.node = type { i32, ptr, ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_Z10createnodei(i32 noundef) #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z6searchP4nodei(ptr noundef, i32 noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z6insertP4nodei(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = load i32, ptr %5, align 4, !tbaa !9
  %8 = call noundef i32 @_Z6searchP4nodei(ptr noundef %6, i32 noundef %7)
  %9 = icmp eq i32 %8, 0
  br i1 %9, label %10, label %39

10:                                               ; preds = %2
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = icmp eq ptr %11, null
  br i1 %12, label %13, label %16

13:                                               ; preds = %10
  %14 = load i32, ptr %5, align 4, !tbaa !9
  %15 = call noundef ptr @_Z10createnodei(i32 noundef %14)
  store ptr %15, ptr %3, align 8
  br label %41

16:                                               ; preds = %10
  %17 = load i32, ptr %5, align 4, !tbaa !9
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.node, ptr %18, i32 0, i32 0
  %20 = load i32, ptr %19, align 8, !tbaa !11
  %21 = icmp slt i32 %17, %20
  br i1 %21, label %22, label %30

22:                                               ; preds = %16
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.node, ptr %23, i32 0, i32 1
  %25 = load ptr, ptr %24, align 8, !tbaa !13
  %26 = load i32, ptr %5, align 4, !tbaa !9
  %27 = call noundef ptr @_Z6insertP4nodei(ptr noundef %25, i32 noundef %26)
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.node, ptr %28, i32 0, i32 1
  store ptr %27, ptr %29, align 8, !tbaa !13
  br label %38

30:                                               ; preds = %16
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.node, ptr %31, i32 0, i32 2
  %33 = load ptr, ptr %32, align 8, !tbaa !14
  %34 = load i32, ptr %5, align 4, !tbaa !9
  %35 = call noundef ptr @_Z6insertP4nodei(ptr noundef %33, i32 noundef %34)
  %36 = load ptr, ptr %4, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.node, ptr %36, i32 0, i32 2
  store ptr %35, ptr %37, align 8, !tbaa !14
  br label %38

38:                                               ; preds = %30, %22
  br label %39

39:                                               ; preds = %38, %2
  %40 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %40, ptr %3, align 8
  br label %41

41:                                               ; preds = %39, %13
  %42 = load ptr, ptr %3, align 8
  ret ptr %42
}

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" }
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" }

!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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS4node", !10, i64 0, !6, i64 8, !6, i64 16}
!13 = !{!12, !6, i64 8}
!14 = !{!12, !6, i64 16}


; 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 nounwind uwtable
declare dso_local noundef ptr @_Z10createnodei(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z6searchP4nodei(ptr noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z6insertP4nodei(ptr noundef %0, i32 noundef %1) local_unnamed_addr #1 {
  %3 = tail call noundef i32 @_Z6searchP4nodei(ptr noundef %0, i32 noundef %1)
  %4 = icmp eq i32 %3, 0
  br i1 %4, label %5, label %common.ret15

5:                                                ; preds = %2
  %6 = icmp eq ptr %0, null
  br i1 %6, label %7, label %9

7:                                                ; preds = %5
  %8 = tail call noundef ptr @_Z10createnodei(i32 noundef %1)
  br label %common.ret15

9:                                                ; preds = %5
  %10 = load i32, ptr %0, align 8, !tbaa !5
  %11 = icmp sgt i32 %10, %1
  br i1 %11, label %12, label %16

common.ret15:                                     ; preds = %2, %7, %16, %12
  %common.ret15.op = phi ptr [ %0, %12 ], [ %0, %16 ], [ %8, %7 ], [ %0, %2 ]
  ret ptr %common.ret15.op

12:                                               ; preds = %9
  %13 = getelementptr inbounds i8, ptr %0, i64 8
  %14 = load ptr, ptr %13, align 8, !tbaa !11
  %15 = tail call noundef ptr @_Z6insertP4nodei(ptr noundef %14, i32 noundef %1)
  store ptr %15, ptr %13, align 8, !tbaa !11
  br label %common.ret15

16:                                               ; preds = %9
  %17 = getelementptr inbounds i8, ptr %0, i64 16
  %18 = load ptr, ptr %17, align 8, !tbaa !12
  %19 = tail call noundef ptr @_Z6insertP4nodei(ptr noundef %18, i32 noundef %1)
  store ptr %19, ptr %17, align 8, !tbaa !12
  br label %common.ret15
}

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" }
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" }

!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 = !{!"_ZTS4node", !7, i64 0, !10, i64 8, !10, i64 16}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!6, !10, i64 16}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass