[all-commits] [llvm/llvm-project] b03bb0: [llvm] Check availability for os_signpost

[Jonas Devlieghere via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b03bb054e19c550ba895ec406e7b04cd1531407e
      https://github.com/llvm/llvm-project/commit/b03bb054e19c550ba895ec406e7b04cd1531407e
  Author: Jonas Devlieghere <jonas at devlieghere.com>
  Date:   2021-02-24 (Wed, 24 Feb 2021)

  Changed paths:
    M llvm/lib/Support/Signposts.cpp

  Log Message:
  -----------
  [llvm] Check availability for os_signpost

Add availability checks to the os_signpost code so this can be used with
an older deployment target.

Differential revision: https://reviews.llvm.org/D97410