[PATCH] Use a Factory Method for MachineFunctionInfo Creation

[Marcello Maggioni]

LGTM

Marcello

2014-12-22 20:55 GMT-08:00 Mehdi Amini <mehdi.amini at apple.com>:

> Hi,
>
> Attached is a patch that add a factory static method for
> MachineFunctionInfo Creation.
>
> The context is that we want to have a pass which would be common to
> multiple backends. It uses a base MachineFunctionInfo class to communicate
> with a given backend. The backend specific passes needs to have specific
> fields in the MachineFunctionInfo class, and thus uses a subclass. The
> problem is that the “backend independent” pass only knows about the common
> MachineFunctionInfo subclass. Overriding the factory method allows to
> delegate the creation of the MachineFunctionInfo to a virtual method on the
> TargetMachine for instance.
>
> —
> Mehdi
>
>
>
>
>
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