On Thu, 4 Nov 2021 at 20:44, Bill Schmidt wrote:

> For posterity:  This was discussed briefly on IRC, and Segher approved
> with some
> simplifications and a request to implement a fail/retry check.
>
>
Here's what I have now. No more assembler check in configure, and it uses
the 64-bit __builtin_darn() and truncates it to 32-bit, or retries (up to
100 times) if it fails.

I'm doing some more testing now.