[patch] Special case aliases in GlobalValue::getAlignment

[Reid Kleckner]

lgtm


On Tue, May 6, 2014 at 8:12 AM, Rafael Espíndola <rafael.espindola at gmail.com
> wrote:

> An alias has the address of what it points to, so it also has the same
> alignment.
>
> This allows a few optimizations to see past aliases for free.
>
> I intend to do the same for sections, I just have to check if there is
> some interesting testcase.
>
> Cheers,
> Rafael
>
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