[PATCH] D61918: [DAGCombiner] visitShiftByConstant(): drop bogus(?) signbit check

[Sanjay Patel via Phabricator via llvm-commits]

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

LGTM - might want to leave a 'TODO' comment for the x86 test that can use the narrower 'not' instruction.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D61918/new/

https://reviews.llvm.org/D61918