[PATCH] D43306: [X86] Add pass to infer required-vector-width attribute based on size of function arguments and use of intrinsics

[Chandler Carruth via Phabricator via llvm-commits]

chandlerc added a comment.

One thing I should clarify here:

What I'm imagining is reasonable to be per-subtarget and inform the legalizer are the *set of legal vector types*. This is subtly different from the *size of legal registers*. Does that still make sense?


https://reviews.llvm.org/D43306