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Compiler C

This repository is a C compiler for x86 implemented at INSA Lyon.

Authors and major contributors

  • Rivaldo De Souza
  • Emmanuel Garreau
  • Mathis Goichon
  • Bérenger Mayoud--Dupin
  • Paul Souteyrat

Build project

Ubuntu

To build the project, go to CompilerC directory and use:

cmake -B build
cmake --build build --target compiler

Windows

Prefer use WSL Ubuntu and run the two commands given above.

Test framework

To run the test framework, you have to:

cd tests
python3 ifcc-test.py .

About grammar generation

If you make any change in the grammar, you can generate Cpp code with the following commands:

cd compiler
java -cp ../antlr-4.10.1-complete.jar org.antlr.v4.Tool -lib ./ -visitor -listener -Dlanguage=Cpp -o ./generated ./ifcc.g4

About CI/CD

We have implemented a CI/CD which build and execute the tests.

You can access our workflows through the Actions tab and then by selecting one of the jobs.

You will find a full report in the unit test result : https://github.com/PeredurOmega/CompilerC/actions/runs/2503655455

You can also download the artifact of the test output.

Roadmap

Features to implement (x86):

  • Variable declaration
  • Multiple declaration (int a, b, c)
  • Anywhere variable declaration
  • Variable assignment
  • Multiple assignment (int a = b = c)
  • Variable initialisation (a = 0)
  • Function declaration with int and void type (call not implemented)
  • Multiple functions declaration (call not implemented)
  • Ignore comments
  • Supporting int type (32 bits)
  • Constant support
  • Arithmetics operations (+, -, *, /, %)
  • Bitwise logical operations (&, |, ^)
  • Comparison operator (==, !=, <, <=, >, >=)
  • Logical operator (&&, ||)
  • Unary operators (+, -, !, ~)
  • Shift bit operator (>>, <<)
  • Block structure
  • Conditional structure (if else)
  • Return support
  • Empty function support
  • Empty return support
  • IR migration
  • Conditional return support
  • While
  • Always return optimization
  • Do not compile on assignment in single line if-else-else if-while statements
  • Break and Continue keyword
  • Char support
  • Statical analysis (variable scope, shadowing)
  • Function call
  • For
  • Switch case
  • Arrays
  • Pointers
  • Various optimisation