; LLVM IR from thalium/icebox :: third_party/virtualbox/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal (EfiMtftp4ParseOptions)

; 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"

; 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 @EfiMtftp4ParseOptions(ptr noundef %0, i32 noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) #1 {
  %6 = alloca i64, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i64, align 8
  %13 = alloca i32, align 4
  store ptr %0, ptr %7, align 8, !tbaa !5
  store i32 %1, ptr %8, align 4, !tbaa !9
  store ptr %2, ptr %9, align 8, !tbaa !5
  store ptr %3, ptr %10, align 8, !tbaa !5
  store ptr %4, ptr %11, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #3
  %14 = load ptr, ptr %7, align 8, !tbaa !5
  %15 = icmp eq ptr %14, null
  br i1 %15, label %25, label %16

16:                                               ; preds = %5
  %17 = load i32, ptr %8, align 4, !tbaa !9
  %18 = icmp ult i32 %17, 2
  br i1 %18, label %25, label %19

19:                                               ; preds = %16
  %20 = load ptr, ptr %9, align 8, !tbaa !5
  %21 = icmp eq ptr %20, null
  br i1 %21, label %25, label %22

22:                                               ; preds = %19
  %23 = load ptr, ptr %10, align 8, !tbaa !5
  %24 = icmp eq ptr %23, null
  br i1 %24, label %25, label %26

25:                                               ; preds = %22, %19, %16, %5
  store i64 -9223372036854775806, ptr %6, align 8
  store i32 1, ptr %13, align 4
  br label %42

26:                                               ; preds = %22
  %27 = load ptr, ptr %9, align 8, !tbaa !5
  %28 = load i32, ptr %8, align 4, !tbaa !9
  %29 = load ptr, ptr %10, align 8, !tbaa !5
  %30 = load ptr, ptr %11, align 8, !tbaa !5
  %31 = call i64 @Mtftp4ExtractOptions(ptr noundef %27, i32 noundef %28, ptr noundef %29, ptr noundef %30)
  store i64 %31, ptr %12, align 8, !tbaa !11
  %32 = load i64, ptr %12, align 8, !tbaa !11
  %33 = icmp slt i64 %32, 0
  br i1 %33, label %34, label %36

34:                                               ; preds = %26
  %35 = load i64, ptr %12, align 8, !tbaa !11
  store i64 %35, ptr %6, align 8
  store i32 1, ptr %13, align 4
  br label %42

36:                                               ; preds = %26
  %37 = load ptr, ptr %10, align 8, !tbaa !5
  %38 = load i32, ptr %37, align 4, !tbaa !9
  %39 = icmp eq i32 %38, 0
  br i1 %39, label %40, label %41

40:                                               ; preds = %36
  store i64 -9223372036854775794, ptr %6, align 8
  store i32 1, ptr %13, align 4
  br label %42

41:                                               ; preds = %36
  store i64 0, ptr %6, align 8
  store i32 1, ptr %13, align 4
  br label %42

42:                                               ; preds = %41, %40, %34, %25
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #3
  %43 = load i64, ptr %6, align 8
  ret i64 %43
}

declare i64 @Mtftp4ExtractOptions(ptr noundef, i32 noundef, ptr noundef, ptr noundef) #2

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 = { "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, !12, i64 0}
!12 = !{!"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: nounwind uwtable
define dso_local range(i64 -9223372036854775808, 1) i64 @EfiMtftp4ParseOptions(ptr noundef readnone %0, i32 noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) local_unnamed_addr #0 {
  %6 = icmp eq ptr %0, null
  %7 = icmp ult i32 %1, 2
  %or.cond = or i1 %6, %7
  %8 = icmp eq ptr %2, null
  %or.cond3 = or i1 %or.cond, %8
  %9 = icmp eq ptr %3, null
  %or.cond5 = or i1 %or.cond3, %9
  br i1 %or.cond5, label %16, label %10

10:                                               ; preds = %5
  %11 = tail call i64 @Mtftp4ExtractOptions(ptr noundef nonnull %2, i32 noundef %1, ptr noundef nonnull %3, ptr noundef %4) #2
  %12 = icmp slt i64 %11, 0
  br i1 %12, label %16, label %13

13:                                               ; preds = %10
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = icmp eq i32 %14, 0
  %. = select i1 %15, i64 -9223372036854775794, i64 0
  br label %16

16:                                               ; preds = %13, %10, %5
  %.0 = phi i64 [ -9223372036854775806, %5 ], [ %11, %10 ], [ %., %13 ]
  ret i64 %.0
}

declare i64 @Mtftp4ExtractOptions(ptr noundef, i32 noundef, ptr noundef, 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, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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