Is there a way to force debug_frame to be enabled on SEH windows?

I'm cross compiling using clang for x86_64 windows using SEH exceptions.
If at all possible, I would like to enable unwind tables to be
generated in debug_frame,
but I was unable to figure out how to accomplish this. Is there a supported way?

Thanks,
Keno

It's not possible today, but it is probably technically feasible. You
would arrange for both of these booleans to be true in
X86FrameLowering::emitPrologue:
  bool NeedsWinCFI = IsWin64Prologue && Fn->needsUnwindTableEntry();
  bool NeedsDwarfCFI =
      !IsWin64Prologue && (MMI.hasDebugInfo() || Fn->needsUnwindTableEntry());