[all-commits] [llvm/llvm-project] 346de9: Fix several issues with compiler extensions

[serge-sans-paille via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 346de9b67228f42eb9b55fa3b426b5dedfdb1d40
      https://github.com/llvm/llvm-project/commit/346de9b67228f42eb9b55fa3b426b5dedfdb1d40
  Author: serge-sans-paille <sguelton at redhat.com>
  Date:   2020-01-10 (Fri, 10 Jan 2020)

  Changed paths:
    M llvm/cmake/modules/AddLLVM.cmake
    M llvm/examples/Bye/CMakeLists.txt
    M llvm/test/lit.cfg.py
    M polly/lib/CMakeLists.txt

  Log Message:
  -----------
  Fix several issues with compiler extensions

- Update documentation now that the move to monorepo has been made
- Do not tie compiler extension testing to LLVM_BUILD_EXAMPLES
- No need to specify LLVM libraries for plugins
- Add NO_MODULE option to match Polly specific requirements (i.e. building the
  module *and* linking it statically)
- Issue a warning when building the compiler extension with
  LLVM_BYE_LINK_INTO_TOOLS=ON, as it modifies the behavior of clang, which only
  makes sense for testing purpose.

Still mark llvm/test/Feature/load_extension.ll as XFAIL because of a
ManagedStatic dependency that's going to be fixed in a seperate commit.

Differential Revision: https://reviews.llvm.org/D72327