[llvm-dev] computeKnownBits doesn't handle ISD::ConstantFP

[Jon Chesterfield via llvm-dev]

SelectionDAG's computeKnownBits has no case for ConstantFP, e.g. Known.ones
= cast <ConstantFPSDNode>(Op)->getValueAFP ().bitcastToAPInt ();

I can't easily override this in target specific code. Can anyone see an
issue with submitting the patch to upstream?

Suggestions for an in tree target that could trigger this would be very
welcome.

Cheers
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