Quantitative analysis of -Os vs -O3

[Andi Kleen]

Allan Sandfeld Jensen <linux@carewolf.com> writes:
>
> Yeah. That is just more problematic in practice. Though I do believe we have 
> support for it. It is good to know it will automatically upgrade optimizations 
> like that. I just wish there was a way to distribute pre-generated arch-
> independent training data.

autofdo supports that in principle (but probably would need some
improvements in the tools  to make it really easily usable, especially
with shared libraries)

-Andi