Ruiling, Song

Shanghai, China

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Summary

🤩

Rockstar

Ruiling Song is a compiler engineer with 8+ years of experience building and optimizing LLVM-based backends for GPUs and media encoders. Currently at AMD, she focuses on LLVM toolchain improvements for AMD GPU codegen, having contributed nuanced fixes like DominatorTree handling in coroutines and SSA phi insertion optimizations in the upstream llvm-project. Her prior roles at Intel involved x86 SSE/AVX tuning for AV1 encoders and OpenCL/LLVM backend development, and earlier work spans OpenGL ES drivers and 3D engine programming. She brings a rare combination of low-level compiler theory and hands-on performance engineering across CPU and GPU toolchains. Based in Shanghai, she holds a master’s in mechatronics from Shanghai Jiao Tong University and often surfaces test-driven improvements in high-profile open-source projects.

8 years of coding experience

Github Skills (10)

compiler-design10

c-language10

cprogramming-language10

optmization10

performance-optimization10

optimisation10

optimization10

llvm10

code-generation9

amdgpu9

Programming languages (4)

C++ShellCLLVM

Github contributions (5)

llvm/llvm-project

Aug 2020 - Jun 2026

The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.

Role in this project:

Back-end Developer

Contributions:102 reviews, 54 PRs, 57 pushes in 5 years 10 months

Contributions summary:Ruiling, focused on compiler and toolchain technologies, specifically contributing to the LLVM project. Their work included removing DominatorTree constructions in Coroutines and passing the DominatorTree in Loads for better dominance checks. Furthermore, the user added a test case to the AMDGPU code generation tests and optimized phi insertion during ssa reconstruction.

compilerllvmtoolchain

ruiling/llvm-project

Sep 2023 - May 2026

The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.

Contributions:51 pushes, 31 branches in 2 years 8 months

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