[PATCH] D144958: [SLP]Initial support for reshuffling of non-starting buildvector/gather nodes.

[Valeriy Dmitriev via Phabricator via llvm-commits]

vdmitrie added inline comments.


================
Comment at: llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp:6998
       bool NeedShuffle =
-          VL.front() != *It || !all_of(VL.drop_front(), UndefValue::classof);
+          count(VL, *It) > 1 &&
+          (VL.front() != *It || !all_of(VL.drop_front(), UndefValue::classof));
----------------
What is a case when count(VL, *It) == 1?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D144958/new/

https://reviews.llvm.org/D144958