[PATCH] vect: Add a popcount fallback.

[Jeff Law]

On 8/8/23 02:55, Robin Dapp via Gcc-patches wrote:
>> Looks reasonable to me - I couldn't read from above whether you did
>> testing on riscv and thus verified the runtime correctness of the fallback?
>> If not may I suggest to force matching the pattern on a target you can
>> test for this purpose?
> 
> I tested on riscv (manually and verified the run test) but didn't bootstrap.
> The vector test suite (or autovec) is not yet enabled by default anyway but
> that's going to change soon.
Presumably this is an alternative to the approach Juzhe posted a week or 
two ago and ultimately dropped?


Jeff