; LLVM IR from dpt/Containers :: libraries/datastruct/critbit/extnode-create.ll_critbit (extnode_create)

; 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.critbit__extnode = type { %struct.item }
%struct.item = type { ptr, i64, ptr }
%struct.critbit = type { ptr, i32, i32, ptr, ptr, ptr }

; Function Attrs: nounwind uwtable
define dso_local ptr @critbit__extnode_create(ptr noundef %0, ptr noundef %1, i64 noundef %2, ptr noundef %3) #0 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i64 %2, ptr %8, align 8, !tbaa !9
  store ptr %3, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %12 = call noalias ptr @malloc(i64 noundef 24) #4
  store ptr %12, ptr %10, align 8, !tbaa !5
  %13 = load ptr, ptr %10, align 8, !tbaa !5
  %14 = icmp eq ptr %13, null
  br i1 %14, label %15, label %16

15:                                               ; preds = %4
  store ptr null, ptr %5, align 8
  store i32 1, ptr %11, align 4
  br label %34

16:                                               ; preds = %4
  %17 = load ptr, ptr %7, align 8, !tbaa !5
  %18 = load ptr, ptr %10, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.critbit__extnode, ptr %18, i32 0, i32 0
  %20 = getelementptr inbounds %struct.item, ptr %19, i32 0, i32 0
  store ptr %17, ptr %20, align 8, !tbaa !11
  %21 = load i64, ptr %8, align 8, !tbaa !9
  %22 = load ptr, ptr %10, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.critbit__extnode, ptr %22, i32 0, i32 0
  %24 = getelementptr inbounds %struct.item, ptr %23, i32 0, i32 1
  store i64 %21, ptr %24, align 8, !tbaa !14
  %25 = load ptr, ptr %9, align 8, !tbaa !5
  %26 = load ptr, ptr %10, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.critbit__extnode, ptr %26, i32 0, i32 0
  %28 = getelementptr inbounds %struct.item, ptr %27, i32 0, i32 2
  store ptr %25, ptr %28, align 8, !tbaa !15
  %29 = load ptr, ptr %6, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.critbit, ptr %29, i32 0, i32 2
  %31 = load i32, ptr %30, align 4, !tbaa !16
  %32 = add nsw i32 %31, 1
  store i32 %32, ptr %30, align 4, !tbaa !16
  %33 = load ptr, ptr %10, align 8, !tbaa !5
  store ptr %33, ptr %5, align 8
  store i32 1, ptr %11, align 4
  br label %34

34:                                               ; preds = %16, %15
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  %35 = load ptr, ptr %5, align 8
  ret ptr %35
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { nounwind }
attributes #4 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"critbit__extnode", !13, i64 0}
!13 = !{!"item", !6, i64 0, !10, i64 8, !6, i64 16}
!14 = !{!12, !10, i64 8}
!15 = !{!12, !6, i64 16}
!16 = !{!17, !18, i64 12}
!17 = !{!"critbit", !6, i64 0, !18, i64 8, !18, i64 12, !6, i64 16, !6, i64 24, !6, i64 32}
!18 = !{!"int", !7, i64 0}


; 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 nofree nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: readwrite) uwtable
define dso_local noalias noundef ptr @critbit__extnode_create(ptr nocapture noundef %0, ptr noundef %1, i64 noundef %2, ptr noundef %3) local_unnamed_addr #0 {
  %5 = tail call noalias dereferenceable_or_null(24) ptr @malloc(i64 noundef 24) #2
  %6 = icmp eq ptr %5, null
  br i1 %6, label %13, label %7

7:                                                ; preds = %4
  store ptr %1, ptr %5, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %5, i64 8
  store i64 %2, ptr %8, align 8, !tbaa !12
  %9 = getelementptr inbounds i8, ptr %5, i64 16
  store ptr %3, ptr %9, align 8, !tbaa !13
  %10 = getelementptr inbounds i8, ptr %0, i64 12
  %11 = load i32, ptr %10, align 4, !tbaa !14
  %12 = add nsw i32 %11, 1
  store i32 %12, ptr %10, align 4, !tbaa !14
  br label %13

13:                                               ; preds = %4, %7
  ret ptr %5
}

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nofree nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: readwrite) 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 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 #2 = { 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, !8, i64 0}
!6 = !{!"critbit__extnode", !7, i64 0}
!7 = !{!"item", !8, i64 0, !11, i64 8, !8, i64 16}
!8 = !{!"any pointer", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C/C++ TBAA"}
!11 = !{!"long", !9, i64 0}
!12 = !{!6, !11, i64 8}
!13 = !{!6, !8, i64 16}
!14 = !{!15, !16, i64 12}
!15 = !{!"critbit", !8, i64 0, !16, i64 8, !16, i64 12, !8, i64 16, !8, i64 24, !8, i64 32}
!16 = !{!"int", !9, i64 0}


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