udiv_qr_4by2

[Marco Bodrato]

Ciao,

Il Mar, 3 Settembre 2019 11:00 pm, Niels Möller ha scritto:
> "Marco Bodrato" <bodrato at mail.dm.unipi.it> writes:
>> I post a proposed patch to rearrange operations in udiv_qr_4by2.

> Looks good to me.

pushed.

>> even if I do not know how much it is actually used:

> I think it's supposed to be useful on architectures with high mul
> throughput but poor latency.

I already changed the same function a couple of years ago:
https://gmplib.org/repo/gmp/rev/53a16d7f8d62
But I don't think the thresholds was changed since.

We will see if something more changes with this further optimisation.

Ĝis,
m

-- 
http://bodrato.it/