[PATCH] Enable MISched on AArch64

[mcrosier at codeaurora.org]

Tim,
No objection here; Ana and I were hoping to enable MISched in the future
as well.

 Chad

> Hi all,
>
> Hao's encountering annoying problems with the LDn/STn instructions on
> AArch64. I think we've tracked these back to the SDag scheduler trying
> to poke too deeply into types that don't really exist anywhere but
> those nodes.
>
> Since that scheduler is going away soon anyway, I'd like to simply
> switch AArch64 over to the MISched now and forget about it. Hence this
> patch.
>
> I'm currently running a regression-test set on the model. Assuming
> that passes, would anyone object to me committing? Fair warning: I'm
> going to take silence as "no".
>
> Cheers.
>
> Tim.
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