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[ARM][LowOverheadLoops] Iteration count liveness

Authored by samparker on Sep 30 2020, 3:10 AM.

Description

[ARM][LowOverheadLoops] Iteration count liveness

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.

Differential Revision: https://reviews.llvm.org/D88549

Details

Committed
samparkerOct 1 2020, 2:11 AM
Differential Revision
D88549: [ARM][LowOverheadLoops] Iteration count liveness
Parents
rG7b90516d479c: [ARM][LowOverheadLoops] Start insertion point
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