[llvm] [CodeGen] Limit mem ops checks count for reasonable compilation speed (PR #147151)

[Afanasyev Ivan via llvm-commits]

ivafanas wrote:

Seems like patch triggers some bug in machine pipeliner for hexagon. I'll close the merge request until bugfix for now.  
We are going to invest in machine pipeliner soon anyway.

https://github.com/llvm/llvm-project/pull/147151