[LLVMdev] TableGen Style Conventions

[mmcco at mykolab.com]

This probably qualifies as bikeshedding, but how strict are the style
norms for TableGen? Some aspects of it, like individually and
consecutively declaring all *_ENC variables in this manner:

    class ADDU_QB_ENC : ADDU_QB_FMT<0b00000>;

To be used only once, in this manner:

    def ADDU_QB : ADDU_QB_ENC, ADDU_QB_DESC;

Seem like avoidable clutter to me. The files tend to be pretty big, and
I think that collapsing assignments like that could make them more
readable.

I'm new to this, so let me know if I'm missing something.

Thanks,
Michael