[PATCH] D87930: [DAG] Add BuildVectorSDNode::getRepeatedSequence helper to recognise multi-element splat patterns

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 294071.
RKSimon added a comment.

Rebase and improve getRepeatedSequence handling of undefs when matching the sequence


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D87930/new/

https://reviews.llvm.org/D87930

Files:
  llvm/include/llvm/CodeGen/SelectionDAGNodes.h
  llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  llvm/lib/Target/X86/X86ISelLowering.cpp

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