[PATCH] D23570: Fix SystemZ compilation abort caused by negative AND mask

[Elliot Colp via llvm-commits]

colpell added a comment.

This patch truncates the constant to 16 bits, but the actual optimization of using NILL instead of NILF is still covered by the peepholes in SystemZInstrInfo.td. If those peepholes are removed, then we still end up using NILF in cases where we could have used NILL.


https://reviews.llvm.org/D23570