[PATCH] D11764: [DAGCombiner] Attempt to mask vectors before zero extension instead of after.

[Simon Pilgrim via llvm-commits]

RKSimon added a comment.

Thanks Ulrich - have you had a chance to look at this?

It looks like the logic in SystemZDAGToDAGISel::tryRISBGZero requires generalizing a little beyond the AND(ANY_EXTEND(V)) pattern, I can update the patch with a candidate fix if you wish?


Repository:
  rL LLVM

http://reviews.llvm.org/D11764