River Riddle Email & Phone Number

Santa Clara, CA, US

Santa Clara, CA, US

Everywhere, US

I lead a team of engineers that contribute tools and infrastructure for the Mojo programming language.With the team, I drive designs, roadmaps, and am heavily involved in the implementation of a large surface area of the Mojo programming language:* The Mojo build system and package management infrastructure.* The Mojo compilation model, building packages.

Everywhere, US

Joined Modular as the first member of the team after the two founders.* Continued to maintain and evolve the MLIR ecosystem, including the introduction of an MLIR bytecode format, "resources", PDL(L), the death of the "standard dialect", and much much more.* Managed the effort for productionizing and shipping the Mojo Language publicly * Led a team of 3.

Mountain View, CA, US

I was a main Architect of MLIR Compiler Infrastructure. I was responsible for the design and implementation of most of the core pieces of MLIR; this includes the IR structure, tooling, documentation (including the tutorial and a large portion of mlir.llvm.org), and much much more. MLIR infrastructure is now used pervasively within Google for Machine.

Mountain View, CA, US

I led various code generation and optimization efforts on a custom VLIW LLVM backend, for internal hardware (that I can't talk about much).

San Mateo, California, US

I led various key areas of compiler technology, including designing novel algorithms and infrastructure for code size optimization for small targets (including outlining), targeted size and runtime optimization for PlayStation platforms (some of which I can't talk about), compiler tooling (for optimization visualization). I also often visited PlayStation.

San Mateo, California, US

Designed various PGO based optimization algorithms, including partial inlining and function outlining, re-implemented various PS4 SDK tools for efficiency and cross platform compatibility. Revamped and analyzed performance metrics for internal game benchmarks.