Inquiry about current status of GCC v850 backend for RH850-U2A/U2B (embedded)

Jeff Law jeffreyalaw@gmail.com
Wed Dec 10 15:16:45 GMT 2025



On 12/10/25 4:22 AM, Jose Martins wrote:

> 
> - Whether the v850 backend is currently considered actively maintained
Probably yes.  By that I'm referring to the fact that it has kept up 
with port requirements through the years such as cc0 removal, LRA 
enablement and such.

I do have it in my semi-private tester and regressions are noted and get 
fixed.  However, the primary purpose of that tester is to identify 
target independent bugs.  I don't mind doing trivial fixes for the v850 
(after all, I did the original port), but if anything significant 
breaks, I can't justify spending time on it.


> 
> - Whether it is deprecated, or expected to be deprecated or removed in
> a future release
Unlikely to be deprecated as it is being updated for project 
requirements, see above.


> 
> - When the backend last received meaningful updates or active maintenance
You could see that via the git logs.  It mostly "just works".

> 
> - The current level of support and test coverage for RH850-U2A and
> RH850-U2B specifically
Not familiar with those sub-parts.  v850, v850e, v850ev? are where my 
experiences with the v850 ended.

Jeff


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