[PATCH] D139611: [DAGCombine] Fold Splat(bitcast(buildvector(x, ..))) to splat(x)

[Dave Green via Phabricator via llvm-commits]

dmgreen updated this revision to Diff 481269.
dmgreen added a comment.

Rebased onto BE tests added to mve-vdup.ll.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D139611/new/

https://reviews.llvm.org/D139611

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/AArch64/arm64-dup.ll
  llvm/test/CodeGen/AArch64/arm64-neon-3vdiff.ll
  llvm/test/CodeGen/Thumb2/mve-vdup.ll
  llvm/test/CodeGen/WebAssembly/simd-shuffle-bitcast.ll
  llvm/test/CodeGen/X86/vector-shuffle-mmx.ll

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