[PATCH][RFC] Add 'CHECK-<N>' directive in FileCheck

[Chandler Carruth]

On Tue, May 14, 2013 at 1:07 AM, Jakob Stoklund Olesen <stoklund at 2pi.dk>wrote:

> I think we should leave ‘grep’ in those tests until somebody properly
> fixes them. I don’t think there is any benefit to mechanically changing
> them to use FileCheck instead.
>

Not really advocating strongly for this feature, but it does have some
value: it removes our test suite's reliance on the 'grep' tool on the host
system, oddities of the syntax it uses, etc etc... Not sure its enough to
justify the effort, but it is something.
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