; LLVM IR from thalium/icebox :: third_party/virtualbox/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library (NetMapFindKey)

; 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.NET_MAP = type { %struct._LIST_ENTRY, %struct._LIST_ENTRY, i64 }
%struct._LIST_ENTRY = type { ptr, ptr }
%struct.NET_MAP_ITEM = type { %struct._LIST_ENTRY, ptr, ptr }

@.str.12 = external hidden unnamed_addr constant [144 x i8], align 1
@.str.20 = external hidden unnamed_addr constant [20 x i8], align 1

; 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

declare zeroext i8 @DebugAssertEnabled() #1

declare void @DebugAssert(ptr noundef, i64 noundef, ptr noundef) #1

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

9:                                                ; preds = %2
  %10 = call zeroext i8 @DebugAssertEnabled()
  %11 = icmp ne i8 %10, 0
  br i1 %11, label %12, label %17

12:                                               ; preds = %9
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = icmp ne ptr %13, null
  br i1 %14, label %16, label %15

15:                                               ; preds = %12
  call void @DebugAssert(ptr noundef @.str.12, i64 noundef 1488, ptr noundef @.str.20)
  br label %16

16:                                               ; preds = %15, %12
  br label %17

17:                                               ; preds = %16, %9
  br label %18

18:                                               ; preds = %17
  br label %19

19:                                               ; preds = %18
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.NET_MAP, ptr %20, i32 0, i32 0
  %22 = getelementptr inbounds %struct._LIST_ENTRY, ptr %21, i32 0, i32 0
  %23 = load ptr, ptr %22, align 8, !tbaa !9
  store ptr %23, ptr %6, align 8, !tbaa !5
  br label %24

24:                                               ; preds = %42, %19
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.NET_MAP, ptr %26, i32 0, i32 0
  %28 = icmp ne ptr %25, %27
  br i1 %28, label %29, label %46

29:                                               ; preds = %24
  %30 = load ptr, ptr %6, align 8, !tbaa !5
  %31 = ptrtoint ptr %30 to i64
  %32 = sub i64 %31, 0
  %33 = inttoptr i64 %32 to ptr
  store ptr %33, ptr %7, align 8, !tbaa !5
  %34 = load ptr, ptr %7, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.NET_MAP_ITEM, ptr %34, i32 0, i32 1
  %36 = load ptr, ptr %35, align 8, !tbaa !13
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  %38 = icmp eq ptr %36, %37
  br i1 %38, label %39, label %41

39:                                               ; preds = %29
  %40 = load ptr, ptr %7, align 8, !tbaa !5
  store ptr %40, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %47

41:                                               ; preds = %29
  br label %42

42:                                               ; preds = %41
  %43 = load ptr, ptr %6, align 8, !tbaa !5
  %44 = getelementptr inbounds %struct._LIST_ENTRY, ptr %43, i32 0, i32 0
  %45 = load ptr, ptr %44, align 8, !tbaa !15
  store ptr %45, ptr %6, align 8, !tbaa !5
  br label %24, !llvm.loop !16

46:                                               ; preds = %24
  store ptr null, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %47

47:                                               ; preds = %46, %39
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %48 = load ptr, ptr %3, align 8
  ret ptr %48
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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, !6, i64 0}
!10 = !{!"", !11, i64 0, !11, i64 16, !12, i64 32}
!11 = !{!"_LIST_ENTRY", !6, i64 0, !6, i64 8}
!12 = !{!"long long", !7, i64 0}
!13 = !{!14, !6, i64 16}
!14 = !{!"", !11, i64 0, !6, i64 16, !6, i64 24}
!15 = !{!11, !6, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


; 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"

@.str.12 = external hidden unnamed_addr constant [144 x i8], align 1
@.str.20 = external hidden unnamed_addr constant [20 x i8], align 1

declare zeroext i8 @DebugAssertEnabled() local_unnamed_addr #0

declare void @DebugAssert(ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local ptr @NetMapFindKey(ptr noundef readonly %0, ptr noundef readnone %1) local_unnamed_addr #1 {
  %3 = tail call zeroext i8 @DebugAssertEnabled() #2
  %4 = icmp eq i8 %3, 0
  %5 = icmp ne ptr %0, null
  %or.cond = or i1 %5, %4
  br i1 %or.cond, label %.preheader, label %6

6:                                                ; preds = %2
  tail call void @DebugAssert(ptr noundef nonnull @.str.12, i64 noundef 1488, ptr noundef nonnull @.str.20) #2
  br label %.preheader

.preheader:                                       ; preds = %6, %2
  br label %7

7:                                                ; preds = %.preheader, %8
  %.011.in = phi ptr [ %.011, %8 ], [ %0, %.preheader ]
  %.011 = load ptr, ptr %.011.in, align 8, !tbaa !5
  %.not = icmp eq ptr %.011, %0
  br i1 %.not, label %12, label %8

8:                                                ; preds = %7
  %9 = getelementptr inbounds i8, ptr %.011, i64 16
  %10 = load ptr, ptr %9, align 8, !tbaa !10
  %11 = icmp eq ptr %10, %1
  br i1 %11, label %12, label %7, !llvm.loop !12

12:                                               ; preds = %7, %8
  %.0 = phi ptr [ %.011, %8 ], [ null, %7 ]
  ret ptr %.0
}

attributes #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 = { 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, !7, i64 0}
!6 = !{!"_LIST_ENTRY", !7, i64 0, !7, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!11, !7, i64 16}
!11 = !{!"", !6, i64 0, !7, i64 16, !7, i64 24}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


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