[PATCH] D122594: [ArgPromotion] Update min-legal-vector-width when do promotion

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

> So my point is there are only ABI and ABI undefined behaviors, i.e, non ABI implementations. "unstable ABI" is not ABI.

I'm translating this to "The formal ABI has a maximum vector width, and vectors in arguments are restricted to that width. The compiler should report a fatal error if it sees an vector wider than the maximum width."  Am I understanding correctly?  (I can't come up with any other interpretation of your use of "undefined" here.)


Repository:
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  https://reviews.llvm.org/D122594/new/

https://reviews.llvm.org/D122594