[PATCH] D107068: [DAG] DAGCombiner::visitVECTOR_SHUFFLE - recognise INSERT_SUBVECTOR patterns.

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 363479.
RKSimon added a comment.

Match subvectors with trailing undef shuffle mask elements

Any thoughts on what we should do for the missing aarch64 insert_subvector isel?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D107068/new/

https://reviews.llvm.org/D107068

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/AArch64/arm64-neon-copy.ll
  llvm/test/CodeGen/X86/2012-04-26-sdglue.ll
  llvm/test/CodeGen/X86/avx-intrinsics-x86-upgrade.ll
  llvm/test/CodeGen/X86/avx-vperm2x128.ll
  llvm/test/CodeGen/X86/pr34592.ll

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