[PATCH] D48706: [X86] Suppress load folding into and/or/xor if it will prevent matching btr/bts/btc.

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon accepted this revision.
RKSimon added a comment.
This revision is now accepted and ready to land.

LGTM once the extra brackets have been fixed. I'm happy with either the isa/cast pattern or replacing with a dyn_cast inner if().


Repository:
  rL LLVM

https://reviews.llvm.org/D48706