[libc-commits] [libc] Include inline_strlen.h on aarch64 only if the target has vector instrucions (PR #170892)

[Simon Tatham via libc-commits]

statham-arm wrote:

> Isn't neon a mandatory part of the aarch64 ISA?

[The R profile of AArch64 in particular](https://developer.arm.com/documentation/ddi0628/aa/?lang=en) permits floating-point support to be omitted. §A1.5 says "This option is licensed only for implementations targeting specialized markets", but it's not completely forbidden.

Thanks for the quick fix! Sorry I was in the wrong timezone to help review it.

https://github.com/llvm/llvm-project/pull/170892