[PATCH] D17728: TableGen: Add hasNoSchedulingInfo flag to instructions

[Andrew Trick via llvm-commits]

atrick added a comment.

I had the same idea when adding the "Unsupported" flag to the ProcWriteResources template. It emits  InvalidNumMicroOps, so you can use the API SchedModel.getSchedClassDesc(SchedClassIdx).isValid().

The idea was that some subtargets support only a subset of the ISA.

Do we really need to add a scheduling specific flag to tablegen Instruction class too?


Repository:
  rL LLVM

http://reviews.llvm.org/D17728