Wilco Dijkstra writes:
> Improve costing of ctz - both TARGET_CSSC and vector cases were not handled
> yet.
>
> Passes regress & bootstrap - OK for commit?
>
> gcc:
> * config/aarch64/aarch64.cc (aarch64_rtx_costs): Improve CTZ costing.
Ok, thanks.
Richard
> diff --git a/gcc/config/aar
Hi Andrew,
> I should note popcount has a similar issue which I hope to fix next week.
> Popcount cost is used during expand so it is very useful to be slightly more
> correct.
It's useful to set the cost so that all of the special cases still apply - even
if popcount is
relatively fast, it's s
On Wed, May 15, 2024, 12:17 PM Wilco Dijkstra
wrote:
> Improve costing of ctz - both TARGET_CSSC and vector cases were not
> handled yet.
>
> Passes regress & bootstrap - OK for commit?
>
I should note popcount has a similar issue which I hope to fix next week.
Popcount cost is used during expan
