; LLVM IR from thalium/icebox :: third_party/virtualbox/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal (Ip4CreateRouteEntry)

; 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.IP4_ROUTE_ENTRY = type { %struct._LIST_ENTRY, i64, i32, i32, i32, i32 }
%struct._LIST_ENTRY = type { ptr, ptr }

; Function Attrs: nounwind uwtable
define dso_local ptr @Ip4CreateRouteEntry(i32 noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %10 = call ptr @AllocatePool(i64 noundef 40)
  store ptr %10, ptr %8, align 8, !tbaa !9
  %11 = load ptr, ptr %8, align 8, !tbaa !9
  %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 !9
  %16 = getelementptr inbounds %struct.IP4_ROUTE_ENTRY, ptr %15, i32 0, i32 0
  %17 = call ptr @InitializeListHead(ptr noundef %16)
  %18 = load ptr, ptr %8, align 8, !tbaa !9
  %19 = getelementptr inbounds %struct.IP4_ROUTE_ENTRY, ptr %18, i32 0, i32 1
  store i64 1, ptr %19, align 8, !tbaa !11
  %20 = load i32, ptr %5, align 4, !tbaa !5
  %21 = load ptr, ptr %8, align 8, !tbaa !9
  %22 = getelementptr inbounds %struct.IP4_ROUTE_ENTRY, ptr %21, i32 0, i32 2
  store i32 %20, ptr %22, align 8, !tbaa !15
  %23 = load i32, ptr %6, align 4, !tbaa !5
  %24 = load ptr, ptr %8, align 8, !tbaa !9
  %25 = getelementptr inbounds %struct.IP4_ROUTE_ENTRY, ptr %24, i32 0, i32 3
  store i32 %23, ptr %25, align 4, !tbaa !16
  %26 = load i32, ptr %7, align 4, !tbaa !5
  %27 = load ptr, ptr %8, align 8, !tbaa !9
  %28 = getelementptr inbounds %struct.IP4_ROUTE_ENTRY, ptr %27, i32 0, i32 4
  store i32 %26, ptr %28, align 8, !tbaa !17
  %29 = load ptr, ptr %8, align 8, !tbaa !9
  %30 = getelementptr inbounds %struct.IP4_ROUTE_ENTRY, ptr %29, i32 0, i32 5
  store i32 0, ptr %30, align 4, !tbaa !18
  %31 = load ptr, ptr %8, align 8, !tbaa !9
  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

declare ptr @AllocatePool(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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !14, i64 16}
!12 = !{!"", !13, i64 0, !14, i64 16, !6, i64 24, !6, i64 28, !6, i64 32, !6, i64 36}
!13 = !{!"_LIST_ENTRY", !10, i64 0, !10, i64 8}
!14 = !{!"long long", !7, i64 0}
!15 = !{!12, !6, i64 24}
!16 = !{!12, !6, i64 28}
!17 = !{!12, !6, i64 32}
!18 = !{!12, !6, i64 36}


; 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 @Ip4CreateRouteEntry(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = tail call ptr @AllocatePool(i64 noundef 40) #2
  %5 = icmp eq ptr %4, null
  br i1 %5, label %13, label %6

6:                                                ; preds = %3
  %7 = tail call ptr @InitializeListHead(ptr noundef nonnull %4) #2
  %8 = getelementptr inbounds i8, ptr %4, i64 16
  store i64 1, ptr %8, align 8, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %4, i64 24
  store i32 %0, ptr %9, align 8, !tbaa !13
  %10 = getelementptr inbounds i8, ptr %4, i64 28
  store i32 %1, ptr %10, align 4, !tbaa !14
  %11 = getelementptr inbounds i8, ptr %4, i64 32
  store i32 %2, ptr %11, align 8, !tbaa !15
  %12 = getelementptr inbounds i8, ptr %4, i64 36
  store i32 0, ptr %12, align 4, !tbaa !16
  br label %13

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

declare ptr @AllocatePool(i64 noundef) local_unnamed_addr #1

declare ptr @InitializeListHead(ptr noundef) local_unnamed_addr #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 = { "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, !11, i64 16}
!6 = !{!"", !7, i64 0, !11, i64 16, !12, i64 24, !12, i64 28, !12, i64 32, !12, i64 36}
!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 = !{!"long long", !9, i64 0}
!12 = !{!"int", !9, i64 0}
!13 = !{!6, !12, i64 24}
!14 = !{!6, !12, i64 28}
!15 = !{!6, !12, i64 32}
!16 = !{!6, !12, i64 36}


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