[PATCH] D148123: [AArch64][CostModel] Make sext/zext free if folded into a masked load

[David Sherwood via Phabricator via llvm-commits]

david-arm added a comment.

In D148123#4277223 <https://reviews.llvm.org/D148123#4277223>, @dmgreen wrote:

> That would make sense for normal loads, but masked loads will not split like that (unless they can extend the mask). https://godbolt.org/z/x9T8vP6Kx. It may be simpler to be more precise about the cost if it returned it directly.

Hi @dmgreen , 've rebased this patch now that https://reviews.llvm.org/D142456 has landed, which explicitly accounts for extends to illegal types, so I think your concerns should be addressed now!


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https://reviews.llvm.org/D148123