[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 489356.
lebedev.ri marked an inline comment as done.
lebedev.ri added a comment.
Herald added subscribers: kosarev, foad, frasercrmck, kerbowa, luismarques, apazos, sameer.abuasal, s.egerton, Jim, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, rogfer01, edward-jones, zzheng, MaskRay, jrtc27, niosHD, sabuasal, simoncook, johnrusso, rbar, asb, arichardson, jvesely, arsenm.

Add subvector test coverage. 
@spatel should we not split such stores just like we do with stores of CONCAT_VECTOR?


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/AArch64/AArch64ISelLowering.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.h
  llvm/lib/Target/AMDGPU/AMDGPUISelLowering.h
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/lib/Target/RISCV/RISCVISelLowering.h
  llvm/lib/Target/X86/X86ISelLowering.h
  llvm/test/CodeGen/X86/wide-scalar-shift-by-byte-multiple-legalization.ll

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