[PATCH] D141778: [DAGCombiner][X86] `mergeConsecutiveStores()`: support merging splat-stores of the same value

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri updated this revision to Diff 491103.
lebedev.ri added a comment.

Rebased, NFC.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D141778/new/

https://reviews.llvm.org/D141778

Files:
  llvm/include/llvm/CodeGen/TargetLowering.h
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/lib/Target/X86/X86ISelLowering.h
  llvm/test/CodeGen/X86/MergeConsecutiveStores.ll
  llvm/test/CodeGen/X86/elementwise-store-of-scalar-splat.ll
  llvm/test/CodeGen/X86/legalize-shl-vec.ll
  llvm/test/CodeGen/X86/subvectorwise-store-of-vector-splat.ll
  llvm/test/CodeGen/X86/wide-scalar-shift-by-byte-multiple-legalization.ll

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