[PATCH] D39415: [ARMISelLowering] Better handling of NEON load/store for sequential memory regions

Eugene Leviant via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Nov 2 11:52:07 PDT 2017


evgeny777 added a comment.

> 1. DAGCombine calls CombineBaseUpdate for each relevant node in the DAG.
> 2. isPredecessorOf is O(N) in the size of the DAG.



1. That's true, I see no difference regarding this between old and new approaches.
2. I didn't know that, thanks! I'll check if it is possible to optimize


https://reviews.llvm.org/D39415





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