[PATCH] D47735: [SelectionDAG] Create rotates more aggressively

[Krzysztof Parzyszek via Phabricator via llvm-commits]

kparzysz updated this revision to Diff 150345.
kparzysz added a comment.
Herald added a subscriber: mgrang.

Changed pair-matching to work on smaller segments (only on shifts of the same value).

Added a testcase of rotates ORed with other rotates, or with unrelated operations.


Repository:
  rL LLVM

https://reviews.llvm.org/D47735

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/Hexagon/rotate-multi.ll
  test/CodeGen/Hexagon/rotate.ll

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