[llvm] [LoadStoreVectorizer] Fill gaps in load/store chains to enable vectorization (PR #159388)

[Drew Kersnar via llvm-commits]

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@@ -864,6 +1033,15 @@ bool Vectorizer::vectorizeChain(Chain &C) {
   if (C.size() < 2)
     return false;
 
+  // If we are left with a two-element chain, and one of the elements is an
+  // extra element, we don't want to vectorize
+  if (C.size() == 2 &&
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dakersnar wrote:

Good catch, thanks!

https://github.com/llvm/llvm-project/pull/159388