Re: mbcel module for Gnulib?, incomplete multibyte sequences

[Paul Eggert]

On 2023-07-21 16:25, Paul Eggert wrote:
> Even mbcel strains GCC's capabilities to optimize. When I look at the 
> x86-64 code it generates I see clear opportunities for tighter code. If 
> I have time I'll fire off a suggestion or two to the GCC maintainers. 
> With luck these suggestions would also help mbu?iterf?.

I sent one suggestion here:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110823

This sped up the microbenchmark for mbcel on ASCII by 55% on a newer 
x86-64 platform, and by 74% on an older one. I assume mbu?iterf? would 
also benefit.

Although I suspect the resulting machine code could be improved further, 
there are diminishing returns....