[PATCH] D64325: RegUsageInfoCollector: Don't iterate all regs for every reg class

[Quentin Colombet via Phabricator via llvm-commits]

qcolombet added a comment.

> It was added by D46315 <https://reviews.llvm.org/D46315>

Looks like it was papering over some SystemZ issues... or maybe it was the TRI::getCalleeSavedRegs vs. MRI::getCalleeSavedRegs.

Anyhow, LGTM.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D64325/new/

https://reviews.llvm.org/D64325