[PATCH] D56098: [ARM] Teach ComputeKnownBitsTarget to handle extract vectors

[Diogo N. Sampaio via Phabricator via llvm-commits]

dnsampaio updated this revision to Diff 180253.
dnsampaio marked 2 inline comments as done.
dnsampaio added a comment.

Removed treatment for out of bounds constant, as it is simplified to poison before being transformed to VGETLANE.
Also removed treatment for variable index, as it is not accepted by VGETLANE.
Added extra tests.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56098/new/

https://reviews.llvm.org/D56098

Files:
  lib/Target/ARM/ARMISelLowering.cpp
  test/CodeGen/ARM/dagcombine-anyexttozeroext.ll

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