David Green f01b9aa89e [MachineScheduler] Enable AA in PostRA Machine scheduler ...

This adds AA to Post-RA Machine Scheduling, allowing the pass more
freedom when handling memory operations.

My understanding is that this was just never done, not that it is
inherently incorrect to do so. The older PostRA List scheduler already
makes use of AA, it's just that the MI PostRA Scheduler was never taught
to use it.

Differential Revision: https://reviews.llvm.org/D69814

2019-11-05 11:58:50 +00:00

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