[all-commits] [llvm/llvm-project] 002f5e: [Hexagon] Restore handling of expanding shuffles

[Krzysztof Parzyszek via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 002f5e158d08929ca266be0fb8275052cc7aaed2
      https://github.com/llvm/llvm-project/commit/002f5e158d08929ca266be0fb8275052cc7aaed2
  Author: Krzysztof Parzyszek <kparzysz at quicinc.com>
  Date:   2021-05-26 (Wed, 26 May 2021)

  Changed paths:
    M llvm/lib/Target/Hexagon/HexagonISelDAGToDAGHVX.cpp
    A llvm/test/CodeGen/Hexagon/autohvx/shuffle-expanding-128b.ll
    A llvm/test/CodeGen/Hexagon/autohvx/shuffle-expanding-64b.ll

  Log Message:
  -----------
  [Hexagon] Restore handling of expanding shuffles

Fixed bugs, added testcases.  The byte-unpack is actually recognized by
the DAG combiner, but the halfword-unpack it not.