7 ``LLVM libc`` compiles from both ``Clang`` and ``GCC`` but for maximum
8 performance we recommend using ``Clang``.
10 Indeed, some memory function implementations rely on `compiler intrinsics`__
11 that are not currently available in ``GCC``.
12 As such we cannot guarantee optimal performance for these functions.
14 .. __: https://clang.llvm.org/docs/LanguageExtensions.html#guaranteed-inlined-copy
16 For platforms where only ``GCC`` is natively available but maximum performance
17 is required it is possible to bootstrap ``Clang`` with ``GCC`` and then use
18 ``Clang`` to build the '`libc``" project.
20 Minimum supported versions
21 ==========================