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@Amanieu -- using the same stdarch commit as #71495 brings a few other things to stable too, which had only reached beta so far. I was able to shim llvm_asm! to plain asm!, but please review whether the rest is safe for stable backport. Otherwise, we'll need a separate stdarch branch to use here.

The other commits only affect ARM instrinsics which are all unstable. So I think it should be safe to backport.

I agree that the stdarch backport seems fine as-is.

I'm going to hold off on approving until Sunday to give some time for feedback (in case someone thinks of something else to include).

@sfackler nominated rust-lang/cargo#8151 (PR: rust-lang/cargo#8175) for backport as well, which is waiting on Cargo team approval.

OK, this PR should be open to maintainer pushes, if you want to add that.

Yeah, I'd like someone from cargo team to sign off and then I'll do so before approving.

Closing in favor of #71868, wasn't able to push to this branch for whatever reason.