[llvm] r262384 - TableGen: Check scheduling models for completeness

[Tim Northover via llvm-commits]

Hi Matthias,

> +          PrintError("No schedule information for instruction '"
> +                     + Inst->TheDef->getName() + "'");

I think this needs a better diagnostic. The most common way this will
be hit is when some poor sucker is trying to test out a new
instruction and suddenly discovers he needs to mark it unsupported on
umpteen schedulers before LLVM will even compile his code.

I'd suggest explicitly calling out hasNoSchedulingInfo as a temporary
development fix.

Cheers.

Tim.