Leandro Lupori
Toolchain Engineer at Linaro
São Paulo, Brazil
Summary
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Rockstar🎓
Top SchoolLeandro Lupori is a Toolchain Engineer with nine years of professional experience, currently at Linaro and a long-time FreeBSD committer working on PowerPC architecture improvements. He holds an MS in Computer Science from Universidade Estadual de Campinas and has a strong systems background from roles at Instituto de Pesquisas Eldorado and earlier systems work. Leandro contributes to LLVM’s flang compiler, notably implementing and refining OpenMP features around nested directives, privatization, and data-sharing attributes—work that improved correctness in a widely used compiler infrastructure. He combines kernel-level expertise with compiler internals, making him equally comfortable debugging low-level platform issues and shaping parallel programming semantics. Based in São Paulo, he brings a pragmatic, research-informed approach to toolchain and OS engineering that surfaces in both open-source and industry projects.
9 years of coding experience
12 years of employment as a software developer
Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at Universidade Estadual Paulista Júlio de Mesquita FilhoMaster of Science - MS, Computer Science, Master of Science - MS, Computer Science at Universidade Estadual de Campinas
Github Skills (10)
fortran10
openmp10
compiler-design9
data-structure7
data-structures7
algorithm7
algorithms7
datastructures-algorithms7
c-language6
cprogramming-language6
Programming languages (7)
Github contributions (5)
llvm/llvm-project
Jan 2023 - Apr 2025
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:223 reviews, 95 PRs, 73 pushes in 2 years 2 months
Contributions summary:Leandro primarily contributed to the flang compiler project, focusing on the OpenMP aspects. Their work involved implementing and refining OpenMP features, specifically addressing issues related to nested directives, privatization, and handling of various data-sharing attributes (DSAs). The user also refactored existing tests and improved symbol handling within critical and sections constructs. These contributions significantly improved the functionality and correctness of OpenMP support within the flang compiler.
compilerstechnologiesclangsubmittoolchain
PPC64/freebsd
Apr 2018 - Oct 2022
Contributions:736 pushes, 907 branches, 8 tags in 4 years 6 months
srcfreebsdread-only
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