levelfour / leml

leML is llvm extended Meta Language.

leML

leML is llvm extended Meta Language.

Dependencies

The environment is

• flex 2.5.39
• bison 2.7.12
• llvm 3.6.2

libraries are

• libncurses ver 5.4.0
• libz ver 1.0.0

Install

Mac OS

Use Homebrew.

brew install flex bison llvm

Linux (Ubuntu)

apt-get install flex bison clang-3.6 lldb-3.6 llvm bc

bc is needed for test.

Before running make, change the content of Makefile.in appropriately. Recommendation is

CXX=clang++-3.6
CC=clang-3.6
LLVMCONFIG=llvm-config-3.6

Check if these above are installed in /usr/bin.

Usage

build

make

to build.

options

• -jit run the program on jit instead of emit code
• -o [filename] specify input file name
• -v verbose output
• -nostdlib does not link built-in library automatically
• -mem2reg apply mem2reg Pass (default is off)

If leml is executed with no options, leml takes stdin as input and emit LLVM IR to stdout.

built-in library

Built-in libraries are located in lib/External. By default, there is \_\_builtins.c, and this includes built-in functions needed to run raytracer.

test

./run_test.sh

test case existing in ./test will be executed on LLVM JIT.