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

[Matt Arsenault via Phabricator via llvm-commits]

arsenm updated this revision to Diff 208453.
arsenm added a comment.

Remove loop entirely. Ultimately determineCalleeSaves adds everything from MCRegAliasIterator anyway


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

https://reviews.llvm.org/D64325

Files:
  lib/CodeGen/RegUsageInfoCollector.cpp
  test/CodeGen/AMDGPU/ipra-regmask.ll

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