[PATCH] D20387: [AArch64] Generate a BFI/BFXIL from 'or (and X, MaskImm), OrImm' iff the value being inserted only sets known zero bits.

[Chad Rosier via llvm-commits]

mcrosier updated this revision to Diff 58479.
mcrosier added a comment.

Address Geoff's feedback.


http://reviews.llvm.org/D20387

Files:
  lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
  test/CodeGen/AArch64/bitfield-insert.ll

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