[all-commits] [llvm/llvm-project] 6e1f19: [clang][PP] Add extension to predefine target OS m...

[Zixu Wang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6e1f19168bca7e3bd4eefda50ba03eac8441dbbf
      https://github.com/llvm/llvm-project/commit/6e1f19168bca7e3bd4eefda50ba03eac8441dbbf
  Author: Zixu Wang <9819235+zixu-w at users.noreply.github.com>
  Date:   2023-12-07 (Thu, 07 Dec 2023)

  Changed paths:
    M clang/include/clang/Basic/Features.def
    A clang/include/clang/Basic/TargetOSMacros.def
    M clang/include/clang/Driver/Options.td
    M clang/include/clang/Lex/PreprocessorOptions.h
    M clang/lib/Driver/ToolChains/Clang.cpp
    M clang/lib/Driver/ToolChains/Darwin.cpp
    M clang/lib/Frontend/CompilerInvocation.cpp
    M clang/lib/Frontend/InitPreprocessor.cpp
    A clang/test/Driver/fdefine-target-os-macros.c

  Log Message:
  -----------
  [clang][PP] Add extension to predefine target OS macros (#74676)

Add an extension feature `define-target-os-macros` that enables clang to
provide definitions of common TARGET_OS_* conditional macros. The
extension is enabled in the Darwin toolchain driver.