[PATCH] D122616: RegAlloc: Fix verifier error after failed allocation

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In D122616#3449107 <https://reviews.llvm.org/D122616#3449107>, @qcolombet wrote:

> Hi @arsenm,
>
> The patch itself looks good but I wonder if we could maybe take a simpler road:
> Could we assign register zero (`noreg`) to this failed vreg?
>
> Cheers,
> -Quentin

The verifier doesn't like that at all since it doesn't have an associated class. Plus every target would have to handle encoding it as something in the end


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