[PATCH] D67841: [SLP] avoid reduction transform on patterns that the backend can load-combine

Sanjay Patel via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Sep 20 10:14:11 PDT 2019


spatel added a comment.

In D67841#1676963 <https://reviews.llvm.org/D67841#1676963>, @ABataev wrote:

> Is this similar to D42981 <https://reviews.llvm.org/D42981>?


I think it's trying to accomplish a similar goal, but that patch affects far more than this (and I'm not sure it would solve this problem). Ie, this is intentionally trying hard to affect only the patterns that we know will be combined into a single larger scalar load.


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https://reviews.llvm.org/D67841





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