; LLVM IR from ritikbanger/Hacktoberfest2022-DSA :: 15. Binary Search Tree/Target Sum Pair In Bst.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 uwtable
declare dso_local noundef ptr @_Z7newNodei(i32 noundef) #0

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z6insertP4Nodei(ptr noundef %0, i32 noundef %1) #0 {
  %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 = icmp eq ptr %6, null
  br i1 %7, label %8, label %11

8:                                                ; preds = %2
  %9 = load i32, ptr %5, align 4, !tbaa !9
  %10 = call noundef ptr @_Z7newNodei(i32 noundef %9)
  store ptr %10, ptr %3, align 8
  br label %43

11:                                               ; preds = %2
  %12 = load i32, ptr %5, align 4, !tbaa !9
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.Node, ptr %13, i32 0, i32 0
  %15 = load i32, ptr %14, align 8, !tbaa !11
  %16 = icmp eq i32 %12, %15
  br i1 %16, label %17, label %19

17:                                               ; preds = %11
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %18, ptr %3, align 8
  br label %43

19:                                               ; preds = %11
  %20 = load i32, ptr %5, align 4, !tbaa !9
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.Node, ptr %21, i32 0, i32 0
  %23 = load i32, ptr %22, align 8, !tbaa !11
  %24 = icmp slt i32 %20, %23
  br i1 %24, label %25, label %33

25:                                               ; preds = %19
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.Node, ptr %26, i32 0, i32 1
  %28 = load ptr, ptr %27, align 8, !tbaa !13
  %29 = load i32, ptr %5, align 4, !tbaa !9
  %30 = call noundef ptr @_Z6insertP4Nodei(ptr noundef %28, i32 noundef %29)
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.Node, ptr %31, i32 0, i32 1
  store ptr %30, ptr %32, align 8, !tbaa !13
  br label %41

33:                                               ; preds = %19
  %34 = load ptr, ptr %4, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.Node, ptr %34, i32 0, i32 2
  %36 = load ptr, ptr %35, align 8, !tbaa !14
  %37 = load i32, ptr %5, align 4, !tbaa !9
  %38 = call noundef ptr @_Z6insertP4Nodei(ptr noundef %36, i32 noundef %37)
  %39 = load ptr, ptr %4, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.Node, ptr %39, i32 0, i32 2
  store ptr %38, ptr %40, align 8, !tbaa !14
  br label %41

41:                                               ; preds = %33, %25
  %42 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %42, ptr %3, align 8
  br label %43

43:                                               ; preds = %41, %17, %8
  %44 = load ptr, ptr %3, align 8
  ret ptr %44
}

attributes #0 = { 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 uwtable
declare dso_local noundef ptr @_Z7newNodei(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z6insertP4Nodei(ptr noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = icmp eq ptr %0, null
  br i1 %3, label %4, label %6

4:                                                ; preds = %2
  %5 = tail call noundef ptr @_Z7newNodei(i32 noundef %1)
  br label %common.ret17

6:                                                ; preds = %2
  %7 = load i32, ptr %0, align 8, !tbaa !5
  %8 = icmp eq i32 %7, %1
  br i1 %8, label %common.ret17, label %9

9:                                                ; preds = %6
  %10 = icmp sgt i32 %7, %1
  br i1 %10, label %11, label %15

common.ret17:                                     ; preds = %6, %4, %15, %11
  %common.ret17.op = phi ptr [ %0, %11 ], [ %0, %15 ], [ %5, %4 ], [ %0, %6 ]
  ret ptr %common.ret17.op

11:                                               ; preds = %9
  %12 = getelementptr inbounds i8, ptr %0, i64 8
  %13 = load ptr, ptr %12, align 8, !tbaa !11
  %14 = tail call noundef ptr @_Z6insertP4Nodei(ptr noundef %13, i32 noundef %1)
  store ptr %14, ptr %12, align 8, !tbaa !11
  br label %common.ret17

15:                                               ; preds = %9
  %16 = getelementptr inbounds i8, ptr %0, i64 16
  %17 = load ptr, ptr %16, align 8, !tbaa !12
  %18 = tail call noundef ptr @_Z6insertP4Nodei(ptr noundef %17, i32 noundef %1)
  store ptr %18, ptr %16, align 8, !tbaa !12
  br label %common.ret17
}

attributes #0 = { 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