[PATCH] D100865: [COST] Improve shuffle kind detection if shuffle mask is provided.

[Alexey Bataev via Phabricator via llvm-commits]

ABataev added inline comments.


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Comment at: llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp:4269
     Value *V = TE->Scalars[I];
+    if (isa<UndefValue>(V))
+      continue;
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sdesmalen wrote:
> Is this change supposed to be in this patch?
Ye, without it SLP is unable to detect broadcast case. I can prepare a separate patch for it.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D100865/new/

https://reviews.llvm.org/D100865