On 14/09/2020 13:01, Wilco Dijkstra wrote:
> Enable the fast shift feature in Neoverse N1 tuning - this means additions
> with
> a shift left by 1-4 are as fast as addition. This improves multiply by
> constant
> expansions, eg. x * 25 is now emitted using shifts rather than a multiply:
>
> add
Enable the fast shift feature in Neoverse N1 tuning - this means additions with
a shift left by 1-4 are as fast as addition. This improves multiply by constant
expansions, eg. x * 25 is now emitted using shifts rather than a multiply:
add w0, w0, w0, lsl 2
add w0, w0, w0, lsl 2
Bootstrap OK, regr
