.. _compiler_support: ================ Compiler Support ================ ``LLVM libc`` compiles from both ``Clang`` and ``GCC`` but for maximum performance we recommend using ``Clang``. Indeed, some memory function implementations rely on `compiler intrinsics`__ that are not currently available in ``GCC``. As such we cannot guarantee optimal performance for these functions. .. __: https://clang.llvm.org/docs/LanguageExtensions.html#guaranteed-inlined-copy For platforms where only ``GCC`` is natively available but maximum performance is required it is possible to bootstrap ``Clang`` with ``GCC`` and then use ``Clang`` to build the '`libc``" project. Minimum supported versions ========================== - ``Clang 11`` - ``GCC 12.2``