[PATCH] D23509: [LoopVectorize] Query TTI when deciding to splat IV

[Michael Kuperstein via llvm-commits]

mkuper added a reviewer: mssimpso.
mkuper added a subscriber: mssimpso.
mkuper added a comment.

Adding @mssimpso, who improved the logic significantly after my original patch. :-)

And yes, as @wmi said, this needs a regression test. Also, could you explain why this is an ARM-specific issue? I want to make sure we're not talking about a case where we should never be using a scalar IV, regardless of platform.


https://reviews.llvm.org/D23509