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

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In D64325#1573940 <https://reviews.llvm.org/D64325#1573940>, @qcolombet wrote:

> > Remove loop entirely. Ultimately determineCalleeSaves adds everything from MCRegAliasIterator anyway
>
> Hmm, I missed that. Why did we add this code in the first place?


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


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  https://reviews.llvm.org/D64325/new/

https://reviews.llvm.org/D64325