[llvm-dev] Issuing a warning from llc

[Chris.Dewhurst via llvm-dev]

I'm wondering if there's a way to issue a warning from llc during a machine function pass.

I have access to a MachineFunction instance, but I can't find any kind of context instance that allows me to issue warnings.

The warning is part of a hardware erratum fix. There are possible side-effects that the user would want to be warned about if they switch on this fix and I want to issue a warning to this effect.
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