[PATCH] D121355: [SelectionDAG] Fold shift constants into cmp

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

ARMTargetLowering::getARMCmp and AArch64TargetLowering::getAArch64Cmp both have code that tries to adjust the condition code to get the immediate to fit. So it looks like the primary problem is that introduction of the ISD::SRL that blocks the target from seeing a constant they can fix it.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D121355/new/

https://reviews.llvm.org/D121355