Yunqiang Su
Debian Developer
Haidian District, Beijing, China
Summary
🤩
Rockstar🎓
Top SchoolYunqiang Su is a Debian Developer with 16 years of experience specializing in low-level systems, compilers, and MIPS architecture support. He has contributed to prominent open-source projects such as libffi and the LLVM project, improving MIPS instruction encoding, soft-float handling, and target-specific code generation. His professional path spans roles at Imagination Technologies, Wave Computing, and a director-level software position, reflecting both hands-on engineering and leadership experience. Based in Beijing's Haidian District, he blends deep compiler internals knowledge with practical firmware and backend fixes that keep critical toolchains working across architectures. An unusual strength is his background in surveying engineering, which suggests a methodical, measurement-driven approach to debugging and platform optimization.
16 years of coding experience
9 years of employment as a software developer
Bachelor of Engineering (B.E.), Surveying Engineering, Bachelor of Engineering (B.E.), Surveying Engineering at Shandong Agricultural UniversityMaster of Engineering (M.Eng.), Surveying Engineering, Master of Engineering (M.Eng.), Surveying Engineering at Liaoning Technical University
English, Chinese
Github Skills (26)
assembly10
float3210
computer-architecture10
llvm10
compiler-development10
architecture10
c-programming10
c1110
ff10
c1710
assemble10
ffi10
assembler10
rt10
floating-point10
Programming languages (17)
Github contributions (5)
llvm/llvm-project
Oct 2022 - 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:204 reviews, 153 PRs, 70 pushes in 2 years 5 months
Contributions summary:Yunqiang's contributions primarily involve modifying and improving the LLVM compiler infrastructure, focusing on the MIPS architecture. They implemented enhancements for MIPS-related features in Clang, addressing issues with unaligned access and FP modes. They also worked on normalizing compiler-rt configurations and fixing compiler-related issues. The user demonstrates a good understanding of compiler internals and target-specific code generation.
compilerstechnologiesclangsubmittoolchain
libffi/libffi
Dec 2017 - May 2022
A portable foreign-function interface library.
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits, 5 PRs, 4 comments in 4 years 5 months
Contributions summary:Yunqiang primarily focused on improving the MIPS architecture support within the libffi library. Their work involved fixing encoding issues for specific instructions on the MIPS r6 architecture. They also added support for complex data types and addressed test failures. Furthermore, the user addressed softfloat support issues.
foreign-function-interfaceportableforeign
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