[all-commits] [llvm/llvm-project] e1f4da: [clang][modules] Correctly set module map systemne...

[Michael Spencer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e1f4daf836e24d9c39fdd4fda84c01e4af31fd65
      https://github.com/llvm/llvm-project/commit/e1f4daf836e24d9c39fdd4fda84c01e4af31fd65
  Author: Michael Spencer <bigcheesegs at gmail.com>
  Date:   2025-03-19 (Wed, 19 Mar 2025)

  Changed paths:
    M clang/lib/Frontend/CompilerInstance.cpp
    A clang/test/Modules/transitive-system.test

  Log Message:
  -----------
  [clang][modules] Correctly set module map systemness (#131940)

This uses the systemness of the module map instead of of the Module
instance, as doing otherwise could incorrectly parse the other modules
in that module map as system.

This is still correct as the only ways to get a system module are by the
module map being in a system path, or the module having the [system]
attribute, both of which are handled here.

This makes it so that the systemness of a module is deterministic
instead of depending on the path taken to build it.



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