[llvm] [AArch64] Ensure the type of LDNP/STNP is always v2i64 (PR #150378)

[Sergei Barannikov via llvm-commits]

https://github.com/s-barannikov approved this pull request.

LGTM, thanks

Perhaps we could avoid bitcasts by relaxing the type constraint?


https://github.com/llvm/llvm-project/pull/150378