[llvm] [SLP]Enable float point math ops as copyables elements. (PR #169857)

[Simon Pilgrim via llvm-commits]

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@@ -5325,13 +5325,14 @@ class slpvectorizer::BoUpSLP {
       if (ScheduleCopyableDataMap.empty())
         return false;
       SmallDenseMap<TreeEntry *, unsigned> PotentiallyReorderedEntriesCount;
-      SmallDenseMap<const TreeEntry *, unsigned> OrderedEntriesCount;
+      ArrayRef<TreeEntry *> Entries = SLP.getTreeEntries(User);
+      if (Entries.empty())
+        return false;
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RKSimon wrote:

this looks like a nfc earlyout that could be pulled out into a pre-commit?

https://github.com/llvm/llvm-project/pull/169857