[all-commits] [llvm/llvm-project] 1696dd: [ARM][MVE] Enable tail-predication by default

[sjoerdmeijer via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 1696dd27fb619fbf6d28cf6aa0d74cf8ef883723
      https://github.com/llvm/llvm-project/commit/1696dd27fb619fbf6d28cf6aa0d74cf8ef883723
  Author: Sjoerd Meijer <sjoerd.meijer at arm.com>
  Date:   2020-09-28 (Mon, 28 Sep 2020)

  Changed paths:
    M llvm/lib/Target/ARM/MVETailPredication.cpp
    M llvm/test/Transforms/LoopVectorize/ARM/mve-reduction-types.ll
    M llvm/test/Transforms/LoopVectorize/ARM/pointer_iv.ll
    M llvm/test/Transforms/LoopVectorize/ARM/tail-folding-reduces-vf.ll

  Log Message:
  -----------
  [ARM][MVE] Enable tail-predication by default

We have been running tests/benchmarks downstream with tail-predication enabled
for some time now and this behaves as expected: we are not aware of any
correctness issues, and this performs better across the board than with
tail-predication disabled. Time to flip the switch!

Differential Revision: https://reviews.llvm.org/D88093