[PATCH] D137704: [RISCV] Make lowerVECTOR_SHUFFLEAsVNSRL support more vnsrl shuffle pattern.

[Han-Kuan Chen via Phabricator via llvm-commits]

HanKuanChen updated this revision to Diff 475065.
HanKuanChen added a comment.

Fix vector_shuffle source may be extract_subvector and undef.

Also provide getSingleShuffleSource (D137904 <https://reviews.llvm.org/D137904>).


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D137704/new/

https://reviews.llvm.org/D137704

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-shufflevector-vnsrl.ll

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