[PATCH] D125836: [DAG] Fold (srl (shl x, c1), c2) -> and(shl/srl(x, c3), m) (WIP)

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

Surely the (srl (shl x, c1), c2) form is better for targets which aren't good at doing an AND-with-large-immediate-value. Is this supposed to be a canonicalization, which targets will undo later as appropriate?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D125836/new/

https://reviews.llvm.org/D125836