Reid Kleckner
Software Engineer at NVIDIA
Palo Alto, California, United States
Summary
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Rockstar🎓
Top SchoolReid Kleckner is a software engineer with 16 years of deep compiler and tooling experience, now joining NVIDIA’s CUDA compiler team after a long tenure leading LLVM-focused engineering at Google. He combines systems-level backend work—code generation, debug info, and platform-specific ABI support—with a strong streak in test automation and build infrastructure, evidenced by sustained contributions across LLVM, Clang, LLDB, and Dr. Memory. Reid’s background includes shipping Windows/MSVC compatibility work, sanitizers and instrumentation, and improving debugger displays for STL objects—skills that bridge low-level compiler internals and real-world developer workflows. As an engineering manager he scaled teams supporting LLVM at Google, but his GitHub history shows he continues to contribute hands-on patches that fix subtle codegen and debugging edge cases. Based in Palo Alto with MIT engineering credentials, he brings both leadership and a pragmatic focus on robustness and cross-platform correctness to compiler toolchains.
16 years of coding experience
15 years of employment as a software developer
Master's of Engineering Computer Science, Master's of Engineering Computer Science at Massachusetts Institute of TechnologyPalo Alto High School
Spanish
Stackoverflow
165reputation
12kreached
0answers
3questions
Github Skills (45)
debugging10
debug10
c-language10
clang-tidy10
python10
llvm10
compiler-development10
memory-management10
build-system10
c1110
lldb10
c1710
system-calls10
compiler-design10
code-generation10
Programming languages (10)
Github contributions (5)
llvm-mirror/clang
Mar 2013 - Oct 2019
Mirror kept for legacy. Moved to https://github.com/llvm/llvm-project
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1019 commits in 6 years 8 months
Contributions summary:Reid appears to be working on the Clang/Clang compiler project, primarily focusing on adding support for Microsoft's (MS) proprietary features related to code generation, particularly for the Windows operating system. Their contributions include extending the compiler to handle MS calling conventions, implementing intrinsics, and incorporating features to deal with different kinds of data types. The user's work also improves existing support for MS ABI features and adds coverage for several Windows platform tests.
keptwindowsllvmcc-plus-plus
apple/swift-llvm
Nov 2015 - Feb 2019
Role in this project:Back-end Developer
Back-end DeveloperContributions:53 commits in 3 years 3 months
Contributions summary:Reid's contributions focused on low-level code generation and debugging infrastructure within the LLVM project, specifically within the context of Swift and LLVM integration. They made several changes to the SelectionDAG instruction selection component, improving readability and performance. The user also addressed debug information issues, including adding deref operations for spilled variables, and ensuring the correct handling of debug information for alloca instructions. Their work included integrating changes that helped with the display of STL objects in the debuggers.
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