[LLVMdev] [TableGen] How to specify multiple types to one register class.

[Lei Mou]

Hi Tom,

Thank you very much! After following your suggestion, the errors are
gone, and the instruction selector works as expected. :-)

Regards,
Lei Mou

> Hi,
>
> Typing RegCRF as [i32, f32] should work.  What type inference error were
> you getting when you tried this?  If a register class can hold more than
> one type, sometimes you need to explicitly tell tablegen what types to
> expect e.g. for your load instruction you might need this pattern:
>
> (set (f32 RegCRF:$d), (load (i32 RegCRF:$a)))
>
> -Tom
>
>> Regards,
>> Lei Mou
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