[llvm-dev] Is a PHI use of another PHI in the same block valid?

[Krzysztof Parzyszek via llvm-dev]

On 2/26/2016 11:15 AM, Krzysztof Parzyszek via llvm-dev wrote:
>
> I don't know if the IR spec mentions this case, but it simply makes no
> sense.

It would make sense if there was a back edge to this block---then the 
value used in the PHI would be the value on exit from this block.

-Krzysztof

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