[PATCH] Avoid illegal integer promotion in X86FastISel

[Eric Christopher]

Seems reasonable, pretty sure the ARM port has the same bug though so could
you fix it in both places? Maybe pull it out into more general code
somewhere?

-eric


On Wed, Nov 6, 2013 at 4:23 PM, Duncan P. N. Exon Smith <
dexonsmith at apple.com> wrote:

> This patch changes fastisel to only fold constant add operations into GEPs
> when the type sizes match.  Without it, the operands of the add are
> implicitly promoted, changing the conditions of an overflow and the result
> of the GEP.
>
> <rdar://problem/15292280>
>
>
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