Adding a libgcc file

[Jeff Law]

On 05/29/2018 12:33 PM, Paul Koning wrote:
> Question about proper target maintainer procedures...
> 
> The pdp11 target needs udivhi3 in libgcc.  There's udivsi3, and it's really easy to tweak those files for HImode.  And that works.
> 
> Should I add the HI files to the libgcc directory, or under config/pdp11?  There's nothing target specific about them, though I don't know of other targets that might want this.
> 
> And would this change fall under target maintainer write privileges, or should I get the patch reviewed first?
If it's easy to tweak for HImode and you think it's generally
applicable, go ahead and post and we'll put them into the toplevel
libgcc directory so that other targets can use.

Jeff