Jay Foad
LLVM Compiler Engineer at AMD
Reading, England, United Kingdom
Summary
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Rockstar🎓
Top SchoolJay Foad is an LLVM compiler engineer with 17 years of systems-level experience, currently working at AMD on LLVM backend improvements for AMDGPU. He has deep expertise across compilers, linkers, assemblers, debuggers and VMs, with strong C/C++ and Java roots and a history of shaping toolchains since early roles at Tao Group and Bullfrog. As former CTO of Dyalog Ltd., he pairs hands-on low-level codegen and intrinsic work—demonstrated by contributions that improved atomic behavior and instruction codegen in the high-profile llvm-project—with engineering leadership. Based in Reading, UK, he brings a pragmatic focus on correctness and performance, validated through extensive testing and refactoring of platform-specific intrinsics. An unusual blend of long-term compiler craftsmanship and product-facing technical management makes him adept at translating intricate ISA and runtime constraints into robust toolchain features.
17 years of coding experience
23 years of employment as a software developer
University of Cambridge
Stackoverflow
31reputation
883reached
1answer
0questions
Github Skills (9)
code-generation10
c-language10
intrinsics10
amdgpu10
cprogramming-language10
llvm10
assembly9
apl6
dyalog6
Programming languages (15)
Github contributions (5)
llvm/llvm-project
Jan 2023 - Jan 2023
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1601 reviews, 16 commits, 737 PRs in 14 days
Contributions summary:Jay contributed to the LLVM project by implementing and refactoring various intrinsics related to the AMDGPU platform, including the creation of a new intrinsic, the handling of preprocessor directives and more. They addressed and resolved issues related to the behavior of atomic operations and the codegen of specific instructions (such as the s_barrier_init instruction), leading to better performance or correctness. The user also made extensive use of testing to verify their changes.
compilerstechnologiesclangsubmittoolchain
jayfoad/llvm-project
Jul 2019 - Jan 2024
This is the canonical git mirror of the LLVM subversion repository. The repository does not accept github pull requests at this moment. Please submit your patches at http://reviews.llvm.org.
Contributions:112 pushes, 252 branches, 1 comment in 4 years 7 months
subversionclanglibgit2submitgit-mirror
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