[PATCH] D109555: [APInt] Enable APInt to support zero bit integers.

[Chris Lattner via Phabricator via llvm-commits]

lattner added a comment.

One random example of where zero bit values would be better: https://github.com/llvm/circt/blob/main/lib/Dialect/Comb/CombFolds.cpp#L1909

The bigger problem is that things like firrtl.constant cannot represent zero bit values, which causes no end of problem, e.g. here:
https://github.com/llvm/circt/blob/main/lib/Dialect/FIRRTL/FIRRTLFolds.cpp


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https://reviews.llvm.org/D109555