Xionghu Luo
高级软件工程师 at 腾讯
Minhang District, Shanghai, China
Summary
👤
Senior🎓
Top SchoolXionghu Luo is a senior software engineer based in Shanghai with 12 years of experience specializing in compilers, graphics, and virtualization for the semiconductor industry. He has deep expertise in GCC/LLVM toolchains, OpenCL/OpenGL, Linux kernel/KVM, and performance optimization in C/C++, with hands-on contributions to GCC—particularly PowerPC back-end improvements and AltiVec optimizations. His career spans engineering roles at Intel, Dell EMC, IBM, and Tencent, where he shipped compiler and runtime improvements, OpenCL implementations, and virtualization audio/network features upstream. Notably, he has authored patches that improved GEN IR and assembly performance in Beignet and addressed Power8/Power9 floating-point and vector codegen in GCC. He combines low-level hardware knowledge with pragmatic upstreaming skills, routinely working across kernel, runtime, and compiler layers to squeeze out real-world performance gains. Trained as a control engineering master at Shanghai Jiao Tong University, he brings analytical rigor to complex systems and compiler back-ends.
12 years of coding experience
11 years of employment as a software developer
工学硕士, 控制理论与控制工程, 工学硕士, 控制理论与控制工程 at 上海交通大学
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (10)
c1710
compiler-optimization10
powerpc10
assembly10
c1110
vectorization10
gcc10
float329
floating-point9
performance-tuning9
Programming languages (4)
Github contributions (5)
gcc-mirror/gcc
May 2020 - Sep 2021
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 commits in 1 year 4 months
Contributions summary:Xionghu primarily contributed to the GCC compiler, focusing on the PowerPC architecture. Their work included adding and modifying functions related to vector operations like `vec_insert`, as well as improving the expansion and optimization of built-in functions such as `fmod` and `remainder`. They also addressed specific performance issues, like those related to Power8 and Power9, optimizing the code for the AltiVec architecture and handling floating-point operations. The user further improved the vector output for the rtx insn.
xionghul/gcc
Jan 2022 - Mar 2023
Contributions:3730 pushes, 1 branch in 1 year 2 months
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