Re: [PATCH] RISC-V: improve codegen for repeating large constants [3]

[Jeff Law via Gcc-patches]

On 7/1/23 02:00, Andrew Waterman wrote:


Yeah, that might end up being a false economy for superscalars.

In general, I wouldn't recommend spending too many cleverness beans on
non-Zba+Zbb implementations.  Going forward, we should expect that
even very simple cores provide those extensions.
I suspect you under-estimate how difficult it is to get the distros to 
move forward on baseline ISAs.

jeff