[all-commits] [llvm/llvm-project] 4b15de: [ORC] Remove hard dependency on libobjc when using...

[lhames via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 4b15decb609ac264cbfc75bc11a99ed0428301f2
      https://github.com/llvm/llvm-project/commit/4b15decb609ac264cbfc75bc11a99ed0428301f2
  Author: Lang Hames <lhames at gmail.com>
  Date:   2020-03-04 (Wed, 04 Mar 2020)

  Changed paths:
    M llvm/include/llvm/ExecutionEngine/Orc/MachOPlatform.h
    M llvm/lib/ExecutionEngine/Orc/LLJIT.cpp
    M llvm/lib/ExecutionEngine/Orc/MachOPlatform.cpp

  Log Message:
  -----------
  [ORC] Remove hard dependency on libobjc when using MachOPlatform with LLJIT.

The LLJIT::MachOPlatformSupport class used to unconditionally attempt to
register __objc_selrefs and __objc_classlist sections. If libobjc had not
been loaded this resulted in an assertion, even if no objc sections were
actually present. This patch replaces this unconditional registration with
a check that no objce sections are present if libobjc has not been loaded.
This will allow clients to use MachOPlatform with LLJIT without requiring
libobjc for non-objc code.