[all-commits] [llvm/llvm-project] 239d01: Reland "[LV] Print remark when loop cannot be vect...

[sdesmalen-arm via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 239d01fa884d8707ece2f2dbf0eafcbbf8714aa4
      https://github.com/llvm/llvm-project/commit/239d01fa884d8707ece2f2dbf0eafcbbf8714aa4
  Author: Sander de Smalen <sander.desmalen at arm.com>
  Date:   2021-07-16 (Fri, 16 Jul 2021)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/test/Transforms/LoopVectorize/AArch64/scalable-call.ll

  Log Message:
  -----------
  Reland "[LV] Print remark when loop cannot be vectorized due to invalid costs."

The original patch was:
  https://reviews.llvm.org/D105806

There were some issues with undeterministic behaviour of the sorting
function, which led to scalable-call.ll passing and/or failing. This
patch fixes the issue by numbering all instructions in the array first,
and using that number as the order, which should provide a consistent
ordering.

This reverts commit a607f64118240f70bf1b14ec121b65f49d63800d.