[PATCH] D106447: [DAGCombine] DAGTypeLegalizer::GenWidenVectorLoads(): make use of dereferenceability knowledge

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

Alignment implying lower granularity of "dereferenceable" isn't justified in LangRef anywhere.  In practice, it works out on common targets because it's impossible to allocate less than a page of memory. (At least, in userspace...)

It's something that would be nice to preserve in the cases where it's justified, but maybe not worth the complexity of trying to track the relevant page size on every target.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D106447/new/

https://reviews.llvm.org/D106447