https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122582
--- Comment #5 from Thomas Schwinge <tschwinge at gcc dot gnu.org> --- If you have preprocessed source code (or source code that doesn't '#include' files), and you just want to examine compiler-generated assembly code or dump files, then you don't need LLVM/'as' etc. at all -- just 'make all-gcc' to only build the compiler. And on the other end of things, just symlink '[newlib]/newlib' into the GCC source directory, and the top-level build system will pick it up and build a full toolchain. Of course, remains the problem that you need hardware to actually execute the generated code. :-/
