Simon Pilgrim f059b04f7b [DAG] Add SelectionDAG::ComputeMinSignedBits helper ...

As suggested on D113371, this adds a wrapper to SelectionDAG::ComputeNumSignBits, similar to the llvm::ComputeMinSignedBits wrapper.

I've included some usage, its not exhaustive, just the more obvious cases where the intention is obvious.

Differential Revision: https://reviews.llvm.org/D113396

2021-11-08 14:12:45 +00:00

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