; LLVM IR from dpt/Containers :: libraries/datastruct/critbit/node-create.ll_critbit (node_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__node = type { [2 x ptr], i32, i8 }
%struct.critbit = type { ptr, i32, i32, ptr, ptr, ptr }

; Function Attrs: nounwind uwtable
define dso_local ptr @critbit__node_create(ptr noundef %0, i32 noundef %1, i8 noundef zeroext %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i8, align 1
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i8 %2, ptr %7, align 1, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %10 = call noalias ptr @malloc(i64 noundef 24) #4
  store ptr %10, ptr %8, align 8, !tbaa !5
  %11 = load ptr, ptr %8, align 8, !tbaa !5
  %12 = icmp eq ptr %11, null
  br i1 %12, label %13, label %14

13:                                               ; preds = %3
  store ptr null, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %32

14:                                               ; preds = %3
  %15 = load ptr, ptr %8, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.critbit__node, ptr %15, i32 0, i32 0
  %17 = getelementptr inbounds [2 x ptr], ptr %16, i64 0, i64 0
  store ptr null, ptr %17, align 8, !tbaa !5
  %18 = load ptr, ptr %8, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.critbit__node, ptr %18, i32 0, i32 0
  %20 = getelementptr inbounds [2 x ptr], ptr %19, i64 0, i64 1
  store ptr null, ptr %20, align 8, !tbaa !5
  %21 = load i32, ptr %6, align 4, !tbaa !9
  %22 = load ptr, ptr %8, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.critbit__node, ptr %22, i32 0, i32 1
  store i32 %21, ptr %23, align 8, !tbaa !12
  %24 = load i8, ptr %7, align 1, !tbaa !11
  %25 = load ptr, ptr %8, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.critbit__node, ptr %25, i32 0, i32 2
  store i8 %24, ptr %26, align 4, !tbaa !14
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.critbit, ptr %27, i32 0, i32 1
  %29 = load i32, ptr %28, align 8, !tbaa !15
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %28, align 8, !tbaa !15
  %31 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %31, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %32

32:                                               ; preds = %14, %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %33 = load ptr, ptr %4, align 8
  ret ptr %33
}

; 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 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!13, !10, i64 16}
!13 = !{!"critbit__node", !7, i64 0, !10, i64 16, !7, i64 20}
!14 = !{!13, !7, i64 20}
!15 = !{!16, !10, i64 8}
!16 = !{!"critbit", !6, i64 0, !10, i64 8, !10, i64 12, !6, i64 16, !6, i64 24, !6, i64 32}


; 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__node_create(ptr nocapture noundef %0, i32 noundef %1, i8 noundef zeroext %2) local_unnamed_addr #0 {
  %4 = tail call noalias dereferenceable_or_null(24) ptr @malloc(i64 noundef 24) #3
  %5 = icmp eq ptr %4, null
  br i1 %5, label %12, label %6

6:                                                ; preds = %3
  %7 = getelementptr inbounds i8, ptr %4, i64 16
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %4, i8 0, i64 16, i1 false)
  store i32 %1, ptr %7, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %4, i64 20
  store i8 %2, ptr %8, align 4, !tbaa !10
  %9 = getelementptr inbounds i8, ptr %0, i64 8
  %10 = load i32, ptr %9, align 8, !tbaa !11
  %11 = add nsw i32 %10, 1
  store i32 %11, ptr %9, align 8, !tbaa !11
  br label %12

12:                                               ; preds = %3, %6
  ret ptr %4
}

; 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

; 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 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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { 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, !9, i64 16}
!6 = !{!"critbit__node", !7, i64 0, !9, i64 16, !7, i64 20}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!"int", !7, i64 0}
!10 = !{!6, !7, i64 20}
!11 = !{!12, !9, i64 8}
!12 = !{!"critbit", !13, i64 0, !9, i64 8, !9, i64 12, !13, i64 16, !13, i64 24, !13, i64 32}
!13 = !{!"any pointer", !7, i64 0}


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