; LLVM IR from thalium/icebox :: third_party/virtualbox/src/VBox/Devices/EFI/Firmware/NetworkPkg/Ip6Dxe (Ip6CreateAssembleEntry)

; 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.IP6_ASSEMBLE_ENTRY = type { %struct._LIST_ENTRY, %struct._LIST_ENTRY, %struct.EFI_IPv6_ADDRESS, %struct.EFI_IPv6_ADDRESS, i32, i32, i32, i32, ptr, ptr, ptr }
%struct._LIST_ENTRY = type { ptr, ptr }
%struct.EFI_IPv6_ADDRESS = type { [16 x i8] }

; Function Attrs: nounwind uwtable
define dso_local ptr @Ip6CreateAssembleEntry(ptr noundef %0, ptr noundef %1, i32 noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %10 = call ptr @AllocatePool(i64 noundef 104)
  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 %42

14:                                               ; preds = %3
  %15 = load ptr, ptr %8, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.IP6_ASSEMBLE_ENTRY, ptr %15, i32 0, i32 2
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = call ptr @CopyMem(ptr noundef %16, ptr noundef %17, i64 noundef 16)
  %19 = load ptr, ptr %8, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.IP6_ASSEMBLE_ENTRY, ptr %19, i32 0, i32 3
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = call ptr @CopyMem(ptr noundef %20, ptr noundef %21, i64 noundef 16)
  %23 = load ptr, ptr %8, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.IP6_ASSEMBLE_ENTRY, ptr %23, i32 0, i32 1
  %25 = call ptr @InitializeListHead(ptr noundef %24)
  %26 = load i32, ptr %7, align 4, !tbaa !9
  %27 = load ptr, ptr %8, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.IP6_ASSEMBLE_ENTRY, ptr %27, i32 0, i32 4
  store i32 %26, ptr %28, align 8, !tbaa !11
  %29 = load ptr, ptr %8, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.IP6_ASSEMBLE_ENTRY, ptr %29, i32 0, i32 7
  store i32 61, ptr %30, align 4, !tbaa !15
  %31 = load ptr, ptr %8, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.IP6_ASSEMBLE_ENTRY, ptr %31, i32 0, i32 5
  store i32 0, ptr %32, align 4, !tbaa !16
  %33 = load ptr, ptr %8, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.IP6_ASSEMBLE_ENTRY, ptr %33, i32 0, i32 6
  store i32 0, ptr %34, align 8, !tbaa !17
  %35 = load ptr, ptr %8, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.IP6_ASSEMBLE_ENTRY, ptr %35, i32 0, i32 8
  store ptr null, ptr %36, align 8, !tbaa !18
  %37 = load ptr, ptr %8, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.IP6_ASSEMBLE_ENTRY, ptr %37, i32 0, i32 9
  store ptr null, ptr %38, align 8, !tbaa !19
  %39 = load ptr, ptr %8, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.IP6_ASSEMBLE_ENTRY, ptr %39, i32 0, i32 10
  store ptr null, ptr %40, align 8, !tbaa !20
  %41 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %41, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %42

42:                                               ; preds = %14, %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %43 = load ptr, ptr %4, align 8
  ret ptr %43
}

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

declare ptr @AllocatePool(i64 noundef) #2

declare ptr @CopyMem(ptr noundef, ptr noundef, i64 noundef) #2

declare ptr @InitializeListHead(ptr 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 = { "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 }

!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 = !{!12, !10, i64 64}
!12 = !{!"", !13, i64 0, !13, i64 16, !14, i64 32, !14, i64 48, !10, i64 64, !10, i64 68, !10, i64 72, !10, i64 76, !6, i64 80, !6, i64 88, !6, i64 96}
!13 = !{!"_LIST_ENTRY", !6, i64 0, !6, i64 8}
!14 = !{!"", !7, i64 0}
!15 = !{!12, !10, i64 76}
!16 = !{!12, !10, i64 68}
!17 = !{!12, !10, i64 72}
!18 = !{!12, !6, i64 80}
!19 = !{!12, !6, i64 88}
!20 = !{!12, !6, i64 96}


; 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: nounwind uwtable
define dso_local ptr @Ip6CreateAssembleEntry(ptr noundef %0, ptr noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = tail call ptr @AllocatePool(i64 noundef 104) #3
  %5 = icmp eq ptr %4, null
  br i1 %5, label %18, label %6

6:                                                ; preds = %3
  %7 = getelementptr inbounds i8, ptr %4, i64 32
  %8 = tail call ptr @CopyMem(ptr noundef nonnull %7, ptr noundef %0, i64 noundef 16) #3
  %9 = getelementptr inbounds i8, ptr %4, i64 48
  %10 = tail call ptr @CopyMem(ptr noundef nonnull %9, ptr noundef %1, i64 noundef 16) #3
  %11 = getelementptr inbounds i8, ptr %4, i64 16
  %12 = tail call ptr @InitializeListHead(ptr noundef nonnull %11) #3
  %13 = getelementptr inbounds i8, ptr %4, i64 64
  store i32 %2, ptr %13, align 8, !tbaa !5
  %14 = getelementptr inbounds i8, ptr %4, i64 76
  store i32 61, ptr %14, align 4, !tbaa !13
  %15 = getelementptr inbounds i8, ptr %4, i64 68
  store i32 0, ptr %15, align 4, !tbaa !14
  %16 = getelementptr inbounds i8, ptr %4, i64 72
  store i32 0, ptr %16, align 8, !tbaa !15
  %17 = getelementptr inbounds i8, ptr %4, i64 80
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(24) %17, i8 0, i64 24, i1 false)
  br label %18

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

declare ptr @AllocatePool(i64 noundef) local_unnamed_addr #1

declare ptr @CopyMem(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #1

declare ptr @InitializeListHead(ptr 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 = { 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 = { "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 }

!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, !12, i64 64}
!6 = !{!"", !7, i64 0, !7, i64 16, !11, i64 32, !11, i64 48, !12, i64 64, !12, i64 68, !12, i64 72, !12, i64 76, !8, i64 80, !8, i64 88, !8, i64 96}
!7 = !{!"_LIST_ENTRY", !8, i64 0, !8, i64 8}
!8 = !{!"any pointer", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C/C++ TBAA"}
!11 = !{!"", !9, i64 0}
!12 = !{!"int", !9, i64 0}
!13 = !{!6, !12, i64 76}
!14 = !{!6, !12, i64 68}
!15 = !{!6, !12, i64 72}


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