; LLVM IR from thalium/icebox :: third_party/virtualbox/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal (Ip4TokenExist)

; 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_ITEM = type { %struct._LIST_ENTRY, ptr, ptr }
%struct._LIST_ENTRY = type { ptr, ptr }
%struct.EFI_IP4_COMPLETION_TOKEN = type { ptr, i64, %union.anon }
%union.anon = type { ptr }

; 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
define dso_local i64 @Ip4TokenExist(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca i64, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  %11 = load ptr, ptr %7, align 8, !tbaa !5
  store ptr %11, ptr %8, align 8, !tbaa !5
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.NET_MAP_ITEM, ptr %12, i32 0, i32 1
  %14 = load ptr, ptr %13, align 8, !tbaa !9
  store ptr %14, ptr %9, align 8, !tbaa !5
  %15 = load ptr, ptr %8, align 8, !tbaa !5
  %16 = load ptr, ptr %9, align 8, !tbaa !5
  %17 = icmp eq ptr %15, %16
  br i1 %17, label %26, label %18

18:                                               ; preds = %3
  %19 = load ptr, ptr %8, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.EFI_IP4_COMPLETION_TOKEN, ptr %19, i32 0, i32 0
  %21 = load ptr, ptr %20, align 8, !tbaa !12
  %22 = load ptr, ptr %9, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.EFI_IP4_COMPLETION_TOKEN, ptr %22, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !12
  %25 = icmp eq ptr %21, %24
  br i1 %25, label %26, label %27

26:                                               ; preds = %18, %3
  store i64 -9223372036854775793, ptr %4, align 8
  store i32 1, ptr %10, align 4
  br label %28

27:                                               ; preds = %18
  store i64 0, ptr %4, align 8
  store i32 1, ptr %10, align 4
  br label %28

28:                                               ; preds = %27, %26
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  %29 = load i64, ptr %4, align 8
  ret i64 %29
}

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 16}
!10 = !{!"", !11, i64 0, !6, i64 16, !6, i64 24}
!11 = !{!"_LIST_ENTRY", !6, i64 0, !6, i64 8}
!12 = !{!13, !6, i64 0}
!13 = !{!"", !6, i64 0, !14, i64 8, !7, i64 16}
!14 = !{!"long long", !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 norecurse nosync nounwind willreturn memory(read, inaccessiblemem: none) uwtable
define dso_local range(i64 -9223372036854775793, 1) i64 @Ip4TokenExist(ptr nocapture noundef readnone %0, ptr nocapture noundef readonly %1, ptr noundef readonly %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %1, i64 16
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = icmp eq ptr %5, %2
  br i1 %6, label %11, label %7

7:                                                ; preds = %3
  %8 = load ptr, ptr %2, align 8, !tbaa !11
  %9 = load ptr, ptr %5, align 8, !tbaa !11
  %10 = icmp eq ptr %8, %9
  %spec.select = select i1 %10, i64 -9223372036854775793, i64 0
  br label %11

11:                                               ; preds = %7, %3
  %.0 = phi i64 [ -9223372036854775793, %3 ], [ %spec.select, %7 ]
  ret i64 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(read, inaccessiblemem: none) 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, !8, i64 16}
!6 = !{!"", !7, i64 0, !8, i64 16, !8, i64 24}
!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 = !{!12, !8, i64 0}
!12 = !{!"", !8, i64 0, !13, i64 8, !9, i64 16}
!13 = !{!"long long", !9, i64 0}


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