[all-commits] [llvm/llvm-project] 4ec340: [ARM][MVE] Add support for incrementing scatters

[aWelker via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 4ec340c3e99c7fa4789387452864ad3cf36ab579
      https://github.com/llvm/llvm-project/commit/4ec340c3e99c7fa4789387452864ad3cf36ab579
  Author: Anna Welker <anna.welker at arm.com>
  Date:   2020-05-15 (Fri, 15 May 2020)

  Changed paths:
    M llvm/lib/Target/ARM/MVEGatherScatterLowering.cpp
    M llvm/test/CodeGen/Thumb2/mve-gather-scatter-optimisation.ll
    A llvm/test/CodeGen/Thumb2/mve-scatter-increment.ll

  Log Message:
  -----------
  [ARM][MVE] Add support for incrementing scatters

Adds support to build pre-incrementing scatters.
If the increment (i.e., add instruction) that is merged into
the scatter is the loop increment, an incrementing write-back
scatter can be built, which then assumes the role of the loop
increment.

Differential Revision: https://reviews.llvm.org/D79859