jroivas/sic

Slightly Improved C

SIC - Slightly Improved C

Slightly Improved C is a programming language that borrows a lot from C, but is not afraid to introduce breaking changes in order to improve it.

To read more about the design see sic.md

Dependencies

You need to have bootstrapping C compiler (both gcc and clang should work). For compiling with sic you need LLVM installed. Plus a linker.

System libc with headers is not mandatory but needed by few tests.

Build and run

There's custom [Makefile] to perform most of the builds.

First start with just make or make test. That will compile sic and perform unit tests, plus compile test snippets under tests folder.

In order to also build and run the tests use:

# Compile and one test
make runtest TEST=0020

# Compile and run all tests, check result
make testsic

To just compile a test:

make compiletest TEST=0020

Output and manual steps

Output of sic compiler is by default LLVM IR in text format. That can be assembled with llvm-as and compiled to binary with llc.

Thus manual steps would be:

LD_LIBRARY_PATH=build/: build/sic tests/test_0001.sic -o build/test_0001.sic.ir
llvm-as build/test_0001.sic.ir
llc -relocation-model=pic -filetype=obj build/test_0001.sic.ir.bc -o build/test_0001.ir.o
# Linking with cc or any other method that suits you
cc build/test_0001.ir.o -o build/test_0001.ir.bin -lm

Roadmap

• Full support for function typedefs
• Functions as variables
• Other missing C features to sic make self hosting
• Start implementing sic features