[Mesa-dev] [PATCH 08/12] i965/fs: Make null_reg_* const members of fs_visitor instead of globals

[Jason Ekstrand]

On Fri, Sep 19, 2014 at 5:37 PM, Matt Turner <mattst88 at gmail.com> wrote:

> On Fri, Sep 19, 2014 at 1:10 PM, Jason Ekstrand <jason at jlekstrand.net>
> wrote:
> > We also set the register width equal to the dispatch width.  Right now,
> > this is effectively a no-op since we don't do anything with it.  However,
> > it will be important once we add an actual width field to fs_reg.
>
> I don't really see the point to be honest. We just wind up calling the
> constructor >1 time.
>
> I could see maybe see making them static members just to reduce their
> scope.
>

The point is to get a null register with a width of dispatch_width.  We
need that later.
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