[PATCH] D89048: [ARM][LowOverheadLoops] Insert loop start at end of block in more cases

[Sam Parker via Phabricator via llvm-commits]

samparker added a comment.

> I wasn't so much concerned about latencies, but I was guessing that by moving the instruction, the goal is to get some more tail-predication "for free".

Indeed, this greatly simplifies the effort required to ensure that we can generate the LSTP version. And I can't see the latency of DLS having any real affect on the performance of a loop, especially not compared to all the other things that can go bad!


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https://reviews.llvm.org/D89048