[all-commits] [llvm/llvm-project] 3045b3: [X86] Add test case for non-power of 2 scatter. NFC

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 3045b3c3b5dbc4192b9a4057ae165f238b84ddf6
      https://github.com/llvm/llvm-project/commit/3045b3c3b5dbc4192b9a4057ae165f238b84ddf6
  Author: Craig Topper <craig.topper at intel.com>
  Date:   2020-09-15 (Tue, 15 Sep 2020)

  Changed paths:
    M llvm/test/CodeGen/X86/masked_gather_scatter.ll

  Log Message:
  -----------
  [X86] Add test case for non-power of 2 scatter. NFC


  Commit: 41f4cd60d54d94e8dac4bbd8d9961dc8ad4a64fc
      https://github.com/llvm/llvm-project/commit/41f4cd60d54d94e8dac4bbd8d9961dc8ad4a64fc
  Author: Craig Topper <craig.topper at intel.com>
  Date:   2020-09-15 (Tue, 15 Sep 2020)

  Changed paths:
    M llvm/lib/Target/X86/X86TargetTransformInfo.cpp
    M llvm/test/CodeGen/X86/masked_gather_scatter.ll

  Log Message:
  -----------
  [X86] Don't scalarize gather/scatters with non-power of 2 element counts. Widen instead.

We can pad the mask with zeros in order to widen. We already do
this for power 2 types that are smaller than a legal type.


Compare: https://github.com/llvm/llvm-project/compare/8ea7ef8eda93...41f4cd60d54d