[all-commits] [llvm/llvm-project] dee058: [CSSPGO] Turn on ext-tsp by default for CSSPGO.

[Hongtao Yu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: dee058c670593b999fec19c458dbbd882ad9de56
      https://github.com/llvm/llvm-project/commit/dee058c670593b999fec19c458dbbd882ad9de56
  Author: Hongtao Yu <hoy at fb.com>
  Date:   2022-02-04 (Fri, 04 Feb 2022)

  Changed paths:
    M llvm/lib/CodeGen/MachineBlockPlacement.cpp
    M llvm/lib/Transforms/IPO/SampleProfile.cpp
    M llvm/lib/Transforms/Utils/CodeLayout.cpp

  Log Message:
  -----------
  [CSSPGO] Turn on ext-tsp by default for CSSPGO.

I'm seeing ext-tsp helps CSSPGO for our intern large benchmarks so I'm turning on it for CSSPGO. For non-CS AutoFDO, ext-tsp doesn't seem to help, probably because of lower profile counts quality.

Reviewed By: wenlei

Differential Revision: https://reviews.llvm.org/D119048