[PATCH] D120192: [DAG] Attempt to fold bswap(shl(x,c)) -> zext(bswap(trunc(shl(x,c-bw/2))))

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 410757.
RKSimon added a comment.

address feedback


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D120192/new/

https://reviews.llvm.org/D120192

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/AArch64/load-combine-big-endian.ll
  llvm/test/CodeGen/AArch64/load-combine.ll
  llvm/test/CodeGen/X86/combine-bswap.ll
  llvm/test/CodeGen/X86/load-combine.ll

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