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You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace, the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this…
Recently I was benchmarking the generated code efficiency for my C compiler antcc, and I noticed something concerning in a simple Lua benchmark:
The next-gen borrow checker, a drop-in replacement for Rust borrow checking. - new_borrow_checker.md
You can see the output on Compiler Explorer, alongside versions compiled with GCC and with the Zicond extension we’ll look at below.
rat is my smallish compiler backend (with a semi-working C99 frontend). Its x86-64 code generator translates the intermediate representation (IR) into x86-64 instructions. These use an unlimited number of virtual registers (vregs).
The idea of a refinement e-graph is to add a baked in a <= relation that is about as privileged as the e-graph’s native =
Dynamically-typed object-oriented languages please programmers, but their lack of static type information penalizes performance. Our new implementation techniques extract static type information from declaration-free programs.
As noted in my previous report, I am currently working on the open source Rust toolchain as a Sovereign Tech Fellow. Every two months, I’m putting out a report of my open source work done in that period. This is the second installment of this series.
Modern AI and HPC accelerators increasingly expose dataflow features: software-visible mechanisms for data movement and overlap, such as inter-core communication through the on-chip network and intra-core asynchronous pipelining.
In The Golden Spike, and Resurrecting the Vale(n) Programming Language, we saw how it was possible for a language to call Rust functions directly, without going through C, by directly integrating with the Rust compiler. 0 1
During the 2025 November C++ ISO meeting Edison Design Group announced that they would be winding down and that they will open-source their front end. This is the repo containing said front end along with some other components like C and C++ back ends.
Exactly a week ago (as a joke), I started writing THC, my “Turbo Haskell compiler,” while on vacation visiting Bartosz Milewski.
My last post on the Rust compiler’s performance was two months ago and a lot has happened since then.
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