Mar 2023 – Sep 2023 · 6 mos · GitHub · Remote

• ‣ I have been guiding and mentoring students for GSoC 2023. The work involves helping students set up the environment to work, doing code reviews, guiding students to fix the issues in LPython and LFortran, brainstorming ideas, project planning, scheduling tasks, etc.
• ‣ GSoC students were Pranav Goswami for LFortran and Anutosh Bhat & Virendra Kabra for LPython.

Nov 2022 – Aug 2023 · 9 mos · GitHub · Remote

• I'm grateful for being funded by the Sovereign Tech Fund project through NumFocus to work on LFortran.
• ‣ I have provided support for fixing bugs and issues in compiling fpm dependencies using the LFortran compiler.

Jul 2022 – Dec 2023 · 1 yr 5 mos · GitHub · Remote

• I’d like to thank GSI Technology for sponsoring our work on LFortran and LPython.
• ‣ I have been providing maintenance and support for Lexical & Syntactic Analysis (Parser), Semantic Code Analysis (ASR), Code Optimization (ASR to ASR passes), and Code Generation (Backends: LLVM, Fortran, C/C++, and WASM).
• ‣ More details can be found in the `Compiler Engineer (Core developer)` section above.

May 2022 – Sep 2022 · 4 mos · GitHub · Remote

• ‣ I have worked with and mentored Akshansh Bhatt (GSoC Student Developer) to write a fully functional Python parser for the LPython compiler, using the Bison Parser Generator that could generate Abstract Syntax Tree (AST) for every valid Python code.
• ‣ Test the parser's robustness by comparing the AST generated by the new parser against the ones generated by the CPython's parser on large codebases.

May 2021 – Aug 2021 · 3 mos · GitLab · Remote

• This project aims to ensure that all the grammar rules defined are exposed to the AST(Abstract Syntax Tree) level.
• ‣ I have worked on the Lexical and Syntax analysis phases of the LFortran compiler. The work involved recognizing the missing tokens and keywords, defining the missing grammar rules for Fortran syntax (parse statements like coarrays, block data, entry statement, pragmas, etc.,), adding the missing AST nodes, and exposing syntax information to AST.
• ‣ I provideed support for printing them back to source code using “fmt” (a subcommand used in LFortran).
• ‣ Add tests for each implementation to ensure everything works correctly.

Feb 2021 – Apr 2024 · 3 yrs 2 mos · GitHub · Remote

• LFortran and LPython are the two compilers under LCompilers that share the same backend using the Libasr library. We have progressed the LFortran parser to beta and binary compilation, optimization & backends to alpha and LPython to alpha.
• I have been providing maintenance and support for Lexical & Syntactic Analysis (Parser), Semantic Code Optimization (ASR, ASR to ASR passes), and Code Generation (Backends: LLVM, Fortran, C/C++, and WASM) for both LFortran and LPython.
• I started my journey with LFortran after completing my GSoC program.
• LFortran is a modern open-source (BSD licensed) interactive Fortran compiler built on top of LLVM.
• More details on LFortran: https://lfortran.org, https://github.com/lfortran/lfortran
• ‣ Some of my work in LFortran includes:
• ‣ Progressed LFortran parser to beta.
• ‣ Provide debug information support for the LLVM IR
• ‣ Initial SIMD support using pragma syntax
• ‣ Part of the team to compile many third-party codes (dftatom, stdlib, fpm, fastgpt, ...) using LFortran
• LPython is a Python compiler that can compile type-annotated Python code into optimized machine code. More details on LPython: https://lpython.org, https://github.com/lcompilers/lpython.
• ‣ Some of my work in LPython includes:
• ‣ Implementing and maintaining the tokenizer and parser (front-end)
• ‣ Support for compiling Python packages
• ‣ Implementing runtime stack traces
• ‣ Support for list methods (insert, remove), list operations (section, concatenation) (LLVM).