Upstreaming optimizations to glibc?

[kjteske]

README.contributors files mention much of the code here is "expected to be upstreamed into glibc". Upstreaming would make it much easier to consume these optimizations - what's the status on that? Is there anything we can do to help that along? In particular, we're interested in stringlib for 32-bit arm.

[Wilco1]

So pretty much all of it is in GLIBC already and generally we quickly upstream new optimizations and features. The string functions for 32-bit Arm are quite old and not very optimized. Basically 32-bit Linux didn't get much attention since the move to 64-bit... Which string functions are you interested in, and for which CPU?

[kjteske]

We use everything in the string/arm folder in this repo.

We use these CPUs, all in 32-bit mode instead of aarch64 instructions:

• A7
• A9
• A53
• A55
• A73