[PATCH] D30225: [LIR] re-enable generation of memmove with runtime checks

[Krzysztof Parzyszek via Phabricator via llvm-commits]

kparzysz added a comment.

In https://reviews.llvm.org/D30225#683038, @efriedma wrote:

> Why are we generating a runtime check for memmove, as opposed to memcpy?


We can check for safety of memcpy: if the source and destination don't overlap, then it's safe to generate memcpy.  On the other hand, when they do overlap, it is not always safe to generate memmove.


Repository:
  rL LLVM

https://reviews.llvm.org/D30225