[PATCH RFC] lto: keep 'force_output' on extern symbols

[Alexander Monakov]

On Thu, 14 Jun 2018, Alexander Monakov wrote:
> However, it is not added to LTO streamed-out symtab, so WPA does not see it.
> 
> If the direction looks fine overall, I'll look into getting over this
> streaming hurdle (hints much appreciated).

Well, going down this rabbit hole is a fine exercise, but the idea seems to
require changes in too many places. There's also the problems that it can
solve only a subset of toplevel-asm-related issues, and won't gracefully work
for variables (we'd warn about ignoring the attribute on an extern decl).

So, let me withdraw this - sorry for the noise.

Alexander