[PATCH] D119973: RegAllocGreedy: Fix last chance recolor assert in impossible case

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In D119973#3327512 <https://reviews.llvm.org/D119973#3327512>, @qcolombet wrote:

> The fix looks good to me.
>
> Out-of-curiosity, do you hit the last recoloring heuristic often?

Not sure but I've been seeing a lot of failures recently in cases like this where it would only be satisfiable if superregisters can be partially spilled


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https://reviews.llvm.org/D119973