[PATCH] D35227: [LV] Don't allow outside uses of IVs if the SCEV is predicated on loop conditions

[Matthew Simpson via Phabricator via llvm-commits]

mssimpso added a comment.

Hi Michael,

I'm probably missing something obvious here. For external IV uses, we compute the end IV value assuming we're coming from the vector loop. But if we executed the vector loop, shouldn't the SCEV predicate have been true, which would mean that the PSEV was a safe assumption?


https://reviews.llvm.org/D35227