Lukacma wrote:

> As far as I understand it, the hint here is specifically a cache hint. 

That would be true for now, but in the future this intrinsic will be used for 
adding other types of hints to atomic store int the future. For example in 
https://github.com/ARM-software/acle/pull/430 we will extend the allowed hints 
to support  Contention management hints. So therefore I think using 
!mem.cache_hint wouldn't be possible here.

https://github.com/llvm/llvm-project/pull/198316
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