[PATCH] D114087: [SLP]Improve registering and merging of compatible shuffles.

[Alexey Bataev via Phabricator via llvm-commits]

ABataev added inline comments.


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Comment at: llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp:6807
+        return false;
+    // Check if the second instruction is more defined than the first one.
+    NewMask.assign(SI2->getShuffleMask().begin(), SI2->getShuffleMask().end());
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RKSimon wrote:
> Add a comment about keep track of the terminating (trailing?) undefmaskelems
Will do, thanks!


Repository:
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  https://reviews.llvm.org/D114087/new/

https://reviews.llvm.org/D114087