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

[Quentin Colombet via Phabricator via llvm-commits]

qcolombet added a comment.

> I haven't looked into it yet, but we see cases of "ran out of registers during register allocation" with this patch, for code that compiled succesfully before.

I was wondering about that.
I think it could happen if each element of the super register is recolored as well. I.e., at the one point in the recoloring the super register becomes fully available.


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https://reviews.llvm.org/D119973