x86.ml is an instruction selector for the part of Tast that fits in one
integer register: literals, slots, let, if, arithmetic, comparison, and a
call. Everything else raises with the node that defeated it, because an
honest refusal is the measurement and a silently wrong answer would waste
the exercise.
The frontend is the real one -- Reader, Parse, Load, Check -- so what is
lowered is the same Tast.fn the LLVM backend gets. Seven arithmetic results
are compared against what the language says they should be; the disassembly
proves nothing and is not the evidence.
Nothing is wired into the build. No dune file under spike/, driven by hand
with ocamlfind and clang as spike/embed already does.
Joseph Ferano
0fbca40446