Tom Eccles
Staff Compiler Engineer at Arm
Manchester, England, United Kingdom
Summary
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Rockstar🎓
Top SchoolTom Eccles is a Staff Compiler Engineer at Arm with 13 years' experience driving long-term LLVM code generation and optimization for high-end Arm CPUs. He leads upstream work on the in-tree Fortran front end (llvm-flang) and the OpenMP MLIR dialect, contributing deep expertise in parallel codegen, reductions, privatization, and intrinsic functions to the widely used llvm-project. Previously at Codethink he delivered embedded GNU+Linux solutions, enabled RISC-V64 Rust, and reviewed a modern C++ textbook, blending client-facing engineering with open-source stewardship. He holds a first-class MEng in Electronic Engineering from the University of Southampton and published peer-reviewed work on a privacy-preserving smart metering protocol. Outside of work he organises events for Buddhist young people in Manchester, plays drums and competes in powerlifting, reflecting a balance of technical leadership and community engagement.
13 years of coding experience
7 years of employment as a software developer
A-Levels, Maths, Physics, Computing, A-Levels, Maths, Physics, Computing at Sir John Deans CollegeMaster of Engineering - MEng, Electronic Engineering with Mobile and Secure Systems, First, Master of Engineering - MEng, Electronic Engineering with Mobile and Secure Systems, First at University of Southampton
Stackoverflow
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Github Skills (7)
compiler-optimization10
fortran10
openmp10
code-generation10
llvm10
cprogramming-language9
c-language9
Programming languages (7)
Github contributions (5)
llvm/llvm-project
Apr 2022 - 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:1522 reviews, 3 commits, 410 PRs in 9 months
Contributions summary:Tom made various contributions to the LLVM project, specifically focusing on the Fortran compiler (flang). Their work involved implementing and improving OpenMP support within the compiler, including lowering code for reductions, handling privatization, and addressing related bugs. The user's contributions were concentrated on the code generation and optimization aspects of the Fortran compiler, particularly in relation to parallel programming paradigms. They also worked on adding and improving intrinsic functions within the compiler.
compilerllvmtoolchain
tblah/llvm-project
Sep 2023 - Jul 2026
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
Contributions:231 pushes, 149 branches in 2 years 9 months
compilerllvmtoolchain
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