Working-in-progress C compiler written in C. My goal is to make it able to self-host.
mcc invokes gcc for preprocessor, assembler, and linker. Only Linux is supported and tested, and the only backend
available is x86-64.
At present, only a small subset of the C language is supported. You can find example programs demonstrating the compiler’s capabilities in the tests/test_data directory. Additionally, mcc does not yet implement any optimization and currently produces extremely inefficient code with no regard for performance.
cmake -S . -B ./build -DCMAKE_BUILD_TYPE:STRING=Release # config cmake
cmake --build ./build --config Release # build the projectBelow are useful CMake flags to customize the build process:
| Flag | Meaning |
|---|---|
MCC_BUILD_TESTS |
Builds unit tests |
MCC_ENABLE_DEVELOPER_MODE |
Enables "developer mode", a one-stop setting to enable a bunch of safety features |
MCC_WARNING_AS_ERROR |
Treats warnings as errors. Automatically enabled by "developer mode" |
MCC_USE_ASAN |
Enable the Address Sanitizers. Automatically enabled by "developer mode" |
MCC_USE_UBSAN |
Enable the Undefined Behavior Sanitizers. Automatically enabled by "developer mode" |
./build/bin/mcc <path to a .c file>See tests/README.md for more information.
The mcc compiler follows a standard compiler architecture, consisting of the following components:
- Frontend: lexers and parsers to transform C source file into AST
- IR Generation: Converts the AST into a three-address code intermediate representation.
- Assembly Generation: Translates the intermediate representation into assembly code.