[PATCH] D140677: [AArch64][DAG] `canCombineShuffleToExtendVectorInreg()`: allow illegal types before legalization

[Roman Lebedev via Phabricator via llvm-commits]

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[DAG] `canCombineShuffleToExtendVectorInreg()`: allow illegal types before legalization

Same question as in D140676 <https://reviews.llvm.org/D140676> - is recursive `zip1` not worse than a `tbl`?

This isn't all that interesting on itself, but this is a prerequisite
to get to the more interesting changes in a follow-up...


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D140677

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/AArch64/fp-conversion-to-tbl.ll
  llvm/test/CodeGen/AArch64/vselect-ext.ll
  llvm/test/CodeGen/AArch64/zext-to-tbl.ll

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