[llvm-dev] rL296252 Made large integer operation codegen significantly worse.

Craig Topper via llvm-dev llvm-dev at lists.llvm.org
Mon Feb 27 21:02:14 PST 2017

I see we're missing an isel pattern for add producing carry and doing a
memory RMW. I'm going to see if adding that helps anything.


On Mon, Feb 27, 2017 at 8:47 PM, Nirav Davé via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Yes. I'm seeing that as well. Not clear what's going on.
> In any case it looks to be unrelated to the alias analysis so barring
> concerns, I'm going to recommit the patch in the morning and let others
> take a look at this.
> -Nirav
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