[PATCH] D60358: [TargetLowering][X86][AArch64] Teach SimplifyDemandedBits to use ShrinkDemandedOp on ISD::SHL nodes.

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

For the LEA regression here, we need to teach foldMaskedShiftToScaledMask to look through the any_extend to find the shift and reinsert the any_extend in the new ordering.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D60358/new/

https://reviews.llvm.org/D60358