[all-commits] [llvm/llvm-project] db5b79: [Hexagon] Fix an instruction move in HexagonVector...

bcahoon via All-commits all-commits at lists.llvm.org
Tue Jan 4 11:47:24 PST 2022

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: db5b7915959a45951c3e6a0d5cc61f0f4ddfe291
  Author: Brendon Cahoon <bcahoon at quicinc.com>
  Date:   2022-01-04 (Tue, 04 Jan 2022)

  Changed paths:
    M llvm/lib/Target/Hexagon/HexagonVectorCombine.cpp
    A llvm/test/CodeGen/Hexagon/autohvx/vector-align-bad-move.ll

  Log Message:
  [Hexagon] Fix an instruction move in HexagonVectorCombine

The HexagonVectorCombine pass was moving an instruction
incorrectly, which caused a use in a GEP that was not yet

HexagonVectorCombine removes a load from a group due to its
dependences, but in realignGroup, the load is processed anyways.
In realignGroup, when determining the maximum alignment, only
those instructions still in the group should be considered.

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