[PATCH] D48614: [SelectionDAG] Fix promotion of extracted FP vector element

Bryan Chan via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Jul 2 22:59:32 PDT 2018


bryanpkc added a comment.

In https://reviews.llvm.org/D48614#1150452, @craig.topper wrote:

> There are actually two selection DAGs for that test. I'm not sure why yet. The final schedule is printed separately for each DAG.


I saw them too. I had assumed that the second DAG would override the first one, being a fallback of some sort, but now that you've mentioned it, the two DAGs joined together would indeed lead to the duplicated instructions.


Repository:
  rL LLVM

https://reviews.llvm.org/D48614





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