[PATCH] D36129: [X86] Use BEXTRI for 64-bit 'and' with a large mask

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

Nice - useful for BMI1 as well do you think? Would use a second register like the AND case but requires a smaller immediate and would allow more load folding opportunities.


https://reviews.llvm.org/D36129