[PATCH] D62818: [InstCombine] Allow ((X << Y) & SignMask) != 0 to be optimized as (X << Y) s< 0.

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

And posted: D62871 <https://reviews.llvm.org/D62871>

As for the instcombine side,
i guess i would recommend a new differential,
with actual folds, not this blacklisting.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D62818/new/

https://reviews.llvm.org/D62818