; LLVM IR from thalium/icebox :: third_party/virtualbox/src/VBox/Devices/EFI/Firmware/NetworkPkg/Ip6Dxe (Ip6ConfigOnDhcp6SbInstalled)

; 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_CONFIG_INSTANCE = type { i32, i8, %struct._LIST_ENTRY, i16, %struct.EFI_IP6_CONFIG_INTERFACE_INFO, %struct.EFI_IP6_CONFIG_INTERFACE_ID, i32, %struct.EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS, [7 x %struct.IP6_CONFIG_DATA_ITEM], %struct.NET_MAP, %struct.NET_MAP, %struct._EFI_IP6_CONFIG_PROTOCOL, ptr, ptr, ptr, ptr, i8, i32, ptr, i32, ptr, i32, %struct._IP6_FORM_CALLBACK_INFO, %struct.IP6_CONFIG_NVDATA }
%struct._LIST_ENTRY = type { ptr, ptr }
%struct.EFI_IP6_CONFIG_INTERFACE_INFO = type { [32 x i16], i8, i32, %struct.EFI_MAC_ADDRESS, i32, ptr, i32, ptr }
%struct.EFI_MAC_ADDRESS = type { [32 x i8] }
%struct.EFI_IP6_CONFIG_INTERFACE_ID = type { [8 x i8] }
%struct.EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS = type { i32 }
%struct.IP6_CONFIG_DATA_ITEM = type { ptr, ptr, i64, i8, %struct.NET_MAP, %union.IP6_CONFIG_DATA, i64 }
%union.IP6_CONFIG_DATA = type { ptr }
%struct.NET_MAP = type { %struct._LIST_ENTRY, %struct._LIST_ENTRY, i64 }
%struct._EFI_IP6_CONFIG_PROTOCOL = type { ptr, ptr, ptr, ptr }
%struct._IP6_FORM_CALLBACK_INFO = type { i32, ptr, %struct._EFI_HII_CONFIG_ACCESS_PROTOCOL, ptr, ptr }
%struct._EFI_HII_CONFIG_ACCESS_PROTOCOL = type { ptr, ptr, ptr }
%struct.IP6_CONFIG_NVDATA = type { i32, %struct.EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS, %struct.EFI_IP6_CONFIG_INTERFACE_ID, %struct._LIST_ENTRY, i32, %struct._LIST_ENTRY, i32, %struct._LIST_ENTRY, i32 }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
declare dso_local i64 @Ip6ConfigStartStatefulAutoConfig(ptr noundef, i8 noundef zeroext) #1

; Function Attrs: nounwind uwtable
define dso_local void @Ip6ConfigOnDhcp6SbInstalled(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %7, ptr %5, align 8, !tbaa !5
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct._IP6_CONFIG_INSTANCE, ptr %8, i32 0, i32 14
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  %11 = icmp ne ptr %10, null
  br i1 %11, label %17, label %12

12:                                               ; preds = %2
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct._IP6_CONFIG_INSTANCE, ptr %13, i32 0, i32 6
  %15 = load i32, ptr %14, align 8, !tbaa !23
  %16 = icmp ne i32 %15, 1
  br i1 %16, label %17, label %18

17:                                               ; preds = %12, %2
  store i32 1, ptr %6, align 4
  br label %24

18:                                               ; preds = %12
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct._IP6_CONFIG_INSTANCE, ptr %20, i32 0, i32 16
  %22 = load i8, ptr %21, align 8, !tbaa !24
  %23 = call i64 @Ip6ConfigStartStatefulAutoConfig(ptr noundef %19, i8 noundef zeroext %22)
  store i32 0, ptr %6, align 4
  br label %24

24:                                               ; preds = %18, %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  %25 = load i32, ptr %6, align 4
  switch i32 %25, label %27 [
    i32 0, label %26
    i32 1, label %26
  ]

26:                                               ; preds = %24, %24
  ret void

27:                                               ; preds = %24
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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, !6, i64 928}
!10 = !{!"_IP6_CONFIG_INSTANCE", !11, i64 0, !7, i64 4, !12, i64 8, !13, i64 24, !14, i64 32, !15, i64 168, !11, i64 176, !16, i64 180, !7, i64 184, !17, i64 800, !17, i64 840, !19, i64 880, !6, i64 912, !6, i64 920, !6, i64 928, !6, i64 936, !7, i64 944, !11, i64 948, !6, i64 952, !11, i64 960, !6, i64 968, !11, i64 976, !20, i64 984, !22, i64 1040}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_LIST_ENTRY", !6, i64 0, !6, i64 8}
!13 = !{!"short", !7, i64 0}
!14 = !{!"", !7, i64 0, !7, i64 64, !11, i64 68, !15, i64 72, !11, i64 104, !6, i64 112, !11, i64 120, !6, i64 128}
!15 = !{!"", !7, i64 0}
!16 = !{!"", !11, i64 0}
!17 = !{!"", !12, i64 0, !12, i64 16, !18, i64 32}
!18 = !{!"long long", !7, i64 0}
!19 = !{!"_EFI_IP6_CONFIG_PROTOCOL", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}
!20 = !{!"_IP6_FORM_CALLBACK_INFO", !11, i64 0, !6, i64 8, !21, i64 16, !6, i64 40, !6, i64 48}
!21 = !{!"_EFI_HII_CONFIG_ACCESS_PROTOCOL", !6, i64 0, !6, i64 8, !6, i64 16}
!22 = !{!"", !11, i64 0, !16, i64 4, !15, i64 8, !12, i64 16, !11, i64 32, !12, i64 40, !11, i64 56, !12, i64 64, !11, i64 80}
!23 = !{!10, !11, i64 176}
!24 = !{!10, !7, i64 944}


; 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
declare dso_local i64 @Ip6ConfigStartStatefulAutoConfig(ptr noundef, i8 noundef zeroext) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @Ip6ConfigOnDhcp6SbInstalled(ptr nocapture noundef readnone %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %1, i64 928
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %.not = icmp eq ptr %4, null
  br i1 %.not, label %5, label %12

5:                                                ; preds = %2
  %6 = getelementptr inbounds i8, ptr %1, i64 176
  %7 = load i32, ptr %6, align 8, !tbaa !22
  %.not5 = icmp eq i32 %7, 1
  br i1 %.not5, label %8, label %12

8:                                                ; preds = %5
  %9 = getelementptr inbounds i8, ptr %1, i64 944
  %10 = load i8, ptr %9, align 8, !tbaa !23
  %11 = tail call i64 @Ip6ConfigStartStatefulAutoConfig(ptr noundef nonnull %1, i8 noundef zeroext %10)
  br label %12

12:                                               ; preds = %2, %5, %8
  ret void
}

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" }

!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, !11, i64 928}
!6 = !{!"_IP6_CONFIG_INSTANCE", !7, i64 0, !8, i64 4, !10, i64 8, !12, i64 24, !13, i64 32, !14, i64 168, !7, i64 176, !15, i64 180, !8, i64 184, !16, i64 800, !16, i64 840, !18, i64 880, !11, i64 912, !11, i64 920, !11, i64 928, !11, i64 936, !8, i64 944, !7, i64 948, !11, i64 952, !7, i64 960, !11, i64 968, !7, i64 976, !19, i64 984, !21, i64 1040}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"_LIST_ENTRY", !11, i64 0, !11, i64 8}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!"short", !8, i64 0}
!13 = !{!"", !8, i64 0, !8, i64 64, !7, i64 68, !14, i64 72, !7, i64 104, !11, i64 112, !7, i64 120, !11, i64 128}
!14 = !{!"", !8, i64 0}
!15 = !{!"", !7, i64 0}
!16 = !{!"", !10, i64 0, !10, i64 16, !17, i64 32}
!17 = !{!"long long", !8, i64 0}
!18 = !{!"_EFI_IP6_CONFIG_PROTOCOL", !11, i64 0, !11, i64 8, !11, i64 16, !11, i64 24}
!19 = !{!"_IP6_FORM_CALLBACK_INFO", !7, i64 0, !11, i64 8, !20, i64 16, !11, i64 40, !11, i64 48}
!20 = !{!"_EFI_HII_CONFIG_ACCESS_PROTOCOL", !11, i64 0, !11, i64 8, !11, i64 16}
!21 = !{!"", !7, i64 0, !15, i64 4, !14, i64 8, !10, i64 16, !7, i64 32, !10, i64 40, !7, i64 56, !10, i64 64, !7, i64 80}
!22 = !{!6, !7, i64 176}
!23 = !{!6, !8, i64 944}


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