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The bugsy compiler

Coded in OCaml, takes a c like, graphics language, bugsy, and compiles it into LLVM IR.

It needs the OCaml llvm library, which is most easily installed through opam.

Install LLVM and its development libraries, the m4 macro preprocessor,
and opam, then use opam to install llvm.

The version of the OCaml llvm library should match the version of the LLVM
system installed on your system.

The default LLVM package is 4.0.4, so we install the matching OCaml
library using opam.  

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Dockerfile
=========================================================================
# Based on 20.04 LTS
FROM ubuntu:focal

ENV TZ=America/New_York
RUN apt-get -yq update
RUN DEBIAN_FRONTEND="noninteractive" apt-get -y install tzdata
RUN DEBIAN_FRONTEND="noninteractive" apt-get -y upgrade && \
    apt-get -yq --no-install-suggests --no-install-recommends install \
    ocaml \
    menhir \
    llvm-10 \
    llvm-10-dev \
    m4 \
    git \
    aspcud \
    ca-certificates \
    python2.7 \
    pkg-config \
    cmake \
    opam \
    libglew-dev \
    freeglut3-dev 


RUN ln -s /usr/bin/lli-10 /usr/bin/lli
RUN ln -s /usr/bin/llc-10 /usr/bin/llc


RUN opam init --disable-sandboxing
RUN opam update
RUN opam install -y \
    llvm.10.0.0 \
    ocamlfind \
    ocamlbuild

WORKDIR /root

ENTRYPOINT ["opam", "config", "exec", "--"]

CMD ["bash"]

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9. To run and test, navigate to the bugsy folder. Once there, run

   make ; ./testall.sh

   bugsy should build without any complaints and all tests should
   pass.

   IF RUNNING ./testall.sh FAILS ON SOME TESTS, check to make sure you
   have symlinked the correct executable from your llvm installation.
   For example, if the executable is named lli-[version], then the
   previous step should have looked something like:

   sudo ln -s /usr/local/opt/llvm/bin/lli-3.7 /usr/bin/lli

   As before, you may also modify the path to lli in testall.sh

------------------------------
To run and test:

$ make
ocamlbuild -clean
Finished, 0 targets (0 cached) in 00:00:00.
00:00:00 0    (0   ) STARTING                                                                                                                                                                                               -------- |rm -rf testall.log *.diff bugsy.native scanner.ml parser.ml parser.mli
rm -rf _build/builtins.o
rm -rf *.cmx *.cmi *.cmo *.cmx *.o *.s *.ll *.out *.exe
rm -rf _build tmp
ocamlbuild -I src -use-ocamlfind -pkgs llvm,llvm.analysis -cflags -w,+a-4-42 \
bugsy.native
Finished, 25 targets (0 cached) in 00:00:01.
cc -c -o _build/builtins.o  src/builtins.c -lm

$ ./scripts/testall.sh
test-add1...OK
test-arith1...OK
test-arith2...OK
.
.
.
test-circle...OK
test-ellipse...OK
test-moveBy...OK
test-rectangle...OK
test-regagon...OK
test-rotateBy...OK
test-scaleBy...OK
test-square...OK
test-triangle...OK
...
fail-array...OK
fail-assign1...OK
fail-assign2...OK