[llvm] [NVPTX] Add Volta Atomic SequentiallyConsistent Load and Store Operations (PR #98551)

[via llvm-commits]

gonzalobg wrote:

@AlexMaclean @Artem-B @jlebar hello all three, I'm looking for some reviewers for this series of PRs to improve the support of atomics in LLVM NVPTX backend. It's my first time touching these parts of the LLVM project, but everyone in the LLVM Discord has been super nice helping me get onboarded. 

This PR includes all the changes of #96436  and #98022, which haven't really gotten any replies yet.. I just kept building on them. Not sure whether I should close them and continue building on them, or whether it is easier to review them piece meal.

I'm happy to help review other people's PR and help with the NVPTX backend in general. I'm "gonzalob" in the LLVM Discord in case anyone wants to chat :) 


https://github.com/llvm/llvm-project/pull/98551