[LLVMdev] Metadata

Devang Patel devang.patel at gmail.com
Wed Feb 10 09:27:36 PST 2010

On Wed, Feb 10, 2010 at 12:02 AM, David Greene <dag at cray.com> wrote:
> Since 2.7 is getting close to code freeze, I'd like to see if I can get in our
> changes to track non-temporal memory operations into trunk.
> As discussed earlier, I was hoping to do this via metadata.  It's pretty clear
> how to attach the data to Instructions, but after that, I'm not sure what
> happens.  Somehow we have to carry this all the way back into MachineInstrs.
> What happens to metadata when SelectionDAGs get built?  Is it lost?

It is still there.

> Is there any mechanism to attach metadata to SDNodes or MachineInstrs?

There is not any mechanism to attach metadata with SDNode or
MachineInstrs today.
>                                                         -Dave
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