[PATCH] D97947: [AArch64] Force runtime unrolling for in-order scheduling models

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer added a comment.

In D97947#2700960 <https://reviews.llvm.org/D97947#2700960>, @dmgreen wrote:

> I was under the impression that without a -mcpu it defaulted to cortex-a53 schedule. It looks like it's no-schedule though, which still counts as an in-order core as it has no MicroOpBufferSize. Can we check if ST->getSchedModel().ProcID != 0, which will be the "NoSchedModel".

Agreed with this. I.e., this is my current impression too. But we do need to get to the bottom of this to be sure. I seem to remember that this is the case for Android. So, could this be set in the driver?


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