; LLVM IR from HarshCasper/NeoAlgo :: C-Plus-Plus/ds/Inorder.ll (Z6InsertP4Nodec)

; 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 { i8, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z6InsertP4Nodec(ptr noundef %0, i8 noundef signext %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca i8, align 1
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i8 %1, ptr %4, align 1, !tbaa !9
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %7, label %16

7:                                                ; preds = %2
  %8 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 24) #3
  call void @llvm.memset.p0.i64(ptr align 16 %8, i8 0, i64 24, i1 false)
  store ptr %8, ptr %3, align 8, !tbaa !5
  %9 = load i8, ptr %4, align 1, !tbaa !9
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.Node, ptr %10, i32 0, i32 0
  store i8 %9, ptr %11, align 8, !tbaa !10
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.Node, ptr %12, i32 0, i32 2
  store ptr null, ptr %13, align 8, !tbaa !12
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.Node, ptr %14, i32 0, i32 1
  store ptr null, ptr %15, align 8, !tbaa !13
  br label %41

16:                                               ; preds = %2
  %17 = load i8, ptr %4, align 1, !tbaa !9
  %18 = sext i8 %17 to i32
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.Node, ptr %19, i32 0, i32 0
  %21 = load i8, ptr %20, align 8, !tbaa !10
  %22 = sext i8 %21 to i32
  %23 = icmp sle i32 %18, %22
  br i1 %23, label %24, label %32

24:                                               ; preds = %16
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.Node, ptr %25, i32 0, i32 1
  %27 = load ptr, ptr %26, align 8, !tbaa !13
  %28 = load i8, ptr %4, align 1, !tbaa !9
  %29 = call noundef ptr @_Z6InsertP4Nodec(ptr noundef %27, i8 noundef signext %28)
  %30 = load ptr, ptr %3, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.Node, ptr %30, i32 0, i32 1
  store ptr %29, ptr %31, align 8, !tbaa !13
  br label %40

32:                                               ; preds = %16
  %33 = load ptr, ptr %3, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.Node, ptr %33, i32 0, i32 2
  %35 = load ptr, ptr %34, align 8, !tbaa !12
  %36 = load i8, ptr %4, align 1, !tbaa !9
  %37 = call noundef ptr @_Z6InsertP4Nodec(ptr noundef %35, i8 noundef signext %36)
  %38 = load ptr, ptr %3, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct.Node, ptr %38, i32 0, i32 2
  store ptr %37, ptr %39, align 8, !tbaa !12
  br label %40

40:                                               ; preds = %32, %24
  br label %41

41:                                               ; preds = %40, %7
  %42 = load ptr, ptr %3, align 8, !tbaa !5
  ret ptr %42
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

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" }
attributes #1 = { nobuiltin 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 #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { builtin 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = !{!11, !7, i64 0}
!11 = !{!"_ZTS4Node", !7, i64 0, !6, i64 8, !6, i64 16}
!12 = !{!11, !6, i64 16}
!13 = !{!11, !6, i64 8}


; 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
define dso_local noundef ptr @_Z6InsertP4Nodec(ptr noundef %0, i8 noundef signext %1) local_unnamed_addr #0 {
  %3 = icmp eq ptr %0, null
  br i1 %3, label %common.ret, label %6

common.ret:                                       ; preds = %2
  %4 = tail call noalias noundef nonnull dereferenceable(24) ptr @_Znwm(i64 noundef 24) #3
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(24) %4, i8 0, i64 16, i1 false)
  store i8 %1, ptr %4, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %4, i64 8
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %5, i8 0, i64 16, i1 false)
  br label %common.ret14

6:                                                ; preds = %2
  %7 = load i8, ptr %0, align 8, !tbaa !5
  %.not = icmp slt i8 %7, %1
  br i1 %.not, label %12, label %8

common.ret14:                                     ; preds = %12, %8, %common.ret
  %common.ret14.op = phi ptr [ %4, %common.ret ], [ %0, %8 ], [ %0, %12 ]
  ret ptr %common.ret14.op

8:                                                ; preds = %6
  %9 = getelementptr inbounds i8, ptr %0, i64 8
  %10 = load ptr, ptr %9, align 8, !tbaa !10
  %11 = tail call noundef ptr @_Z6InsertP4Nodec(ptr noundef %10, i8 noundef signext %1)
  store ptr %11, ptr %9, align 8, !tbaa !10
  br label %common.ret14

12:                                               ; preds = %6
  %13 = getelementptr inbounds i8, ptr %0, i64 16
  %14 = load ptr, ptr %13, align 8, !tbaa !11
  %15 = tail call noundef ptr @_Z6InsertP4Nodec(ptr noundef %14, i8 noundef signext %1)
  store ptr %15, ptr %13, align 8, !tbaa !11
  br label %common.ret14
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

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" }
attributes #1 = { nobuiltin 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 #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { builtin 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 = !{!"_ZTS4Node", !7, i64 0, !9, i64 8, !9, i64 16}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!"any pointer", !7, i64 0}
!10 = !{!6, !9, i64 8}
!11 = !{!6, !9, i64 16}


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