Olang Compiler

LLVM-based programming language compiler

Build

mkdir build && cd build
cmake .. && make -j$(nproc)

Snake Game Example

cd build
./olc ../examples/src/snake.olang -o ../examples/build/snake.o
cd ..
./olang-link ./examples/build/snake ./examples/build/snake.o -lncurses -lc

./example/build/snake

Controls: ↑↓←→ arrow keys to move, q to quit

Compiler (olc)

Usage: ./build/olc <input_file> [options]
Options:
  --emit-llvm       Generate LLVM IR (.ll)
  -o <output>       Specify output file
  --target <triple> Specify target triple
  --print-ir        Print LLVM IR to stdout

Default: Generate object file (.o)
Linking: Use ld.lld or clang to link .o files

Linker

./olang-link <output> <input.o> [-lc ...]

Language Features

• Basic types: i1, i8, i16, i32, i64, f32, f64
• Structs and arrays
• Functions: internal, extern declarations, export
• Control flow: if/else, while
• Operators: arithmetic, comparison, logical
• Pointers

Dependencies

• C++17
• CMake 3.20+
• LLVM 18
• Java (ANTLR)
• ld.lld