[all-commits] [llvm/llvm-project] 715dc5: [lto] Enable new PM when the PM config is non-empty

[Benjamin Kramer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 715dc556b782f718ce1815aaf5c58626f5fe839c
      https://github.com/llvm/llvm-project/commit/715dc556b782f718ce1815aaf5c58626f5fe839c
  Author: Benjamin Kramer <benny.kra at googlemail.com>
  Date:   2021-02-15 (Mon, 15 Feb 2021)

  Changed paths:
    M llvm/lib/LTO/LTOBackend.cpp

  Log Message:
  -----------
  [lto] Enable new PM when the PM config is non-empty

This restores the behavior before 964f8103c58d, which broke 2 tests:
  LLVM :: tools/llvm-lto2/X86/pipeline.ll
  lld :: ELF/lto/ltopasses-custom.ll