[PATCH] D38967: [SelectionDAG] Don't subject ISD:Constant to the depth limit in TargetLowering::SimplifyDemandedBits.

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Oct 16 12:07:34 PDT 2017


craig.topper added a comment.

Doesn't look like SimplifyDemandedBits or computeKnownBits currently handling ConstantFP. We probably don't cross any fp->integer boundaries when recursing. I definitely see an early out in ISD::BITCAST handling if its a cast from FP.


https://reviews.llvm.org/D38967





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