[PATCH] D48878: [X86][BtVer2][NFC] Regexify zero-idioms

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

Please don't use regexes unless you really need to - its a little difficult to gauge but in general these take a LOT longer on tblgen - they only really work well if you don't start with a pattern so InstRegexOp::apply can reduce the search range considerably.


Repository:
  rL LLVM

https://reviews.llvm.org/D48878