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...to AGQ. No. The machine model is used to form a scheduling DAG independent of the original schedule. If it's important to be this precise, then I suggest you plugin a new MachineSchedStrategy where you can model stalls for any special cases during scheduling. You need a super-resource: def P5600A : ProcResource<2>; def P5600AGQ : ProcResource<1> { let Super = P5600A; } def P5600ALQ : ProcResource<1> { let Super = P5600A; } I'll take a look at MachineSchedStrategy. I don't know how important that precision is likely to be at the moment but I've generally found...

Hi Andrew, I seem to be making good progress on the P5600 scheduler using the new machine model but I've got a few questions about it. How would you represent an instruction that splits into two micro-ops and is dispatched to two different reservation stations? For example, I have two reservation stations (AGQ and FPQ). An FPU load instruction is split into a load micro-op which is