[llvm-branch-commits] [llvm] release/22.x: [AArch64] Use an unknown size for memcpy ops with non-constant sizes. (#187445) (PR #187651)

[David Green via llvm-branch-commits]

davemgreen wrote:

It was present since the creation of mops instructions, whenever they were added. They are a new architecture feature, so have only recently started becoming available in hardware.

https://github.com/llvm/llvm-project/pull/187651