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[ARM][LowOverheadLoops] Iteration count liveness

Authored by samparker on Sep 30 2020, 3:15 AM.



Before deciding to insert a [W|D]LSTP, check that defining LR with the element count won't affect any other instructions that should be taking the iteration count.

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samparker created this revision.Sep 30 2020, 3:15 AM
samparker requested review of this revision.Sep 30 2020, 3:15 AM
This revision is now accepted and ready to land.Oct 1 2020, 1:27 AM
This revision was landed with ongoing or failed builds.Oct 1 2020, 2:14 AM
This revision was automatically updated to reflect the committed changes.