[PATCH] D140069: [DAGCombiner] Scalarize vectorized loads that are splatted

[Luke Lau via Phabricator via llvm-commits]

luke marked an inline comment as done.
luke added inline comments.


================
Comment at: llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:23466
+                                      SelectionDAG &DAG) {
+  if (!Shuf->isSplat())
+    return SDValue();
----------------
RKSimon wrote:
> Similar to D140811 - we might want to limit this to cases where the shuffle is not just a single non-undef mask element
Done: Is there another optimisation that occurs on a splat w/ a single non-undef mask element?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D140069/new/

https://reviews.llvm.org/D140069