[libc-commits] [libc] [libc] Implement vector 'split' and 'concat' routines (PR #157537)

[Michael Jones via libc-commits]

https://github.com/michaelrj-google commented:

given that these SIMD utilities are getting more complex, it would be best to add unit tests to ensure that they work. It'd probably be best to do that in a separate patch to avoid having one massive patch.

https://github.com/llvm/llvm-project/pull/157537