[PATCH] D11579: [InstrProfiling] Fix data race on profile counters by using AtomicRMW.

[Diego Novillo]

dnovillo added a comment.

In http://reviews.llvm.org/D11579#214650, @samsonov wrote:

> What kind of uses do you refer to? InstrProfIncrementInst we're replacing has type "void", so it doesn't return any value that can be consumed.


Yeah, that's what's confusing me.  Why was the code before calling RAUW?

Other than that, your change looks fine to me.  But there's clearly something I'm not quite understanding here.  I'd like Justin to chime in.


http://reviews.llvm.org/D11579