zahiraam wrote:

> @zahiraam @AaronBallman a different option would be to add a signed vs 
> unsigned storage option to the `OPTION` and `BENIGN_ENUM_LANGOPT` macros so 
> we can store negative enumerations safely

I think I would prefer this solution. We need to be able to set the evaluation 
method to a value (-1) when it can't be known from the target or when the value 
of `ffp-eval-method`  is inconsistent with the target. 

https://github.com/llvm/llvm-project/pull/137661
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