[all-commits] [llvm/llvm-project] fb89cc: [clang][modules] Don't depend on sharing FileManag...

[Ben Langmuir via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fb89cc0ddbd9a588ee15148451e7d0bcbc1ef411
      https://github.com/llvm/llvm-project/commit/fb89cc0ddbd9a588ee15148451e7d0bcbc1ef411
  Author: Ben Langmuir <blangmuir at apple.com>
  Date:   2022-08-05 (Fri, 05 Aug 2022)

  Changed paths:
    M clang/include/clang/Driver/Options.td
    M clang/include/clang/Frontend/FrontendOptions.h
    M clang/lib/Frontend/CompilerInstance.cpp
    M clang/test/ClangScanDeps/modulemap-via-vfs.m
    A clang/test/Modules/submodule-in-private-mmap-vfs.m
    M clang/test/VFS/module-import.m

  Log Message:
  -----------
  [clang][modules] Don't depend on sharing FileManager during module build

Sharing the FileManager between the importer and the module build should
only be an optimization. Add a cc1 option -fno-modules-share-filemanager
to allow us to test this. Fix the path to modulemap files, which
previously depended on the shared FileManager when using path mapped to
an external file in a VFS.

Differential Revision: https://reviews.llvm.org/D131076