[CIR][CIRGen] Support __builtin_memset_inline

[PikachuHyA]

No description provided.

[PikachuHyA]

This patch depends on the upstream patch from llvm/llvm-project#115711.

We can proceed with this PR once the ClangIR has been rebased.

@ghehg might be interested in these intrinsics, so please feel free to share your thoughts!

[ghehg]

LGTM, Thanks for working on this, especially for adding LLVM::MemsetInlineOp

[bcardosolopes]

This is great, I'd suggest you break this PR into everything but LLVM lowering (you can emit a op.emitError() for now) so we land CIRGen faster, once we rebase you add the lowering bits, how does that sound? @lanza is out on vacation, so I don't expect any rebase in the next two weeks (cc @smeenai)

[smeenai]

If it cherry-picks cleanly, we could also potentially cherry-pick llvm/llvm-project#115711, and it'll just get rebased out on the next rebase.

[bcardosolopes]

If it cherry-picks cleanly, we could also potentially cherry-pick llvm/llvm-project#115711, and it'll just get rebased out on the next rebase.

I'm ok with that too, good point. Should we tag the title in any specific way? @PikachuHyA if you want to cherry-pick the dep, put a separate PR for that one and we land this after that!

[smeenai]

If it cherry-picks cleanly, we could also potentially cherry-pick llvm/llvm-project#115711, and it'll just get rebased out on the next rebase.

I'm ok with that too, good point. Should we tag the title in any specific way? @PikachuHyA if you want to cherry-pick the dep, put a separate PR for that one and we land this after that!

Maybe [upstream] or [cherry-pick], plus using git cherry-pick -x so that the commit message includes the original hash.

[PikachuHyA]

If it cherry-picks cleanly, we could also potentially cherry-pick llvm/llvm-project#115711, and it'll just get rebased out on the next rebase.

I'm ok with that too, good point. Should we tag the title in any specific way? @PikachuHyA if you want to cherry-pick the dep, put a separate PR for that one and we land this after that!

Maybe [upstream] or [cherry-pick], plus using git cherry-pick -x so that the commit message includes the original hash.

sent #1135

[bcardosolopes]

Merged!