[PATCH] D86815: [LangRef] Remove non-overlapping guarantee from memcpy.

[Dávid Bolvanský via Phabricator via llvm-commits]

xbolva00 added a comment.

In D86815#2245467 <https://reviews.llvm.org/D86815#2245467>, @arsenm wrote:

> In D86815#2245466 <https://reviews.llvm.org/D86815#2245466>, @arsenm wrote:
>
>> Why would we change this? What's the point of having separate memcpy and memmove intrinsics?
>
> I'm reading this as clang mis-uses llvm.memcpy when it probably should be using llvm.memmove

Can we detect overlap on frontend? And emit memmove in this case..


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https://reviews.llvm.org/D86815