LLVM
Welcome to the LLVM dev room
January 31, 2026
3:00 PM – 3:05 PM Add to calendar
3:00 PM – 3:05 PM Add to calendar
UD6.215
<p>A word of welcome by the LLVM Dev room organizers.</p>
Additional information
| Live Stream | https://live.fosdem.org/watch/ud6215 |
|---|---|
| Type | devroom |
| Language | English |
More sessions
| 1/31/26 |
<p>LLVM has recently gained support for an ELF implementation of the AArch64 Pointer Authentication ABI (PAuthABI) for a Linux Musl target. This talk will cover: * An introduction to the PAuthABI and its LLVM support. * How to experiment with it on any Linux machine using qemu-aarch64 emulation. * How to adapt the Linux Musl target to a bare-metal target using LLVM libc.</p> <p>The AArch64 Pointer Authentication Code instructions are currently deployed on Linux to protect the return address on ...
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| 1/31/26 |
<p>Ever been debugging a production issue and wished you'd added just one more log statement? Now you have to rebuild, wait for CI, deploy... all that time wasted. We've all been there, cursing our past selves.</p> <p>We've integrated LLVM's XRay into ClickHouse to solve this. It lets us hot-patch running production systems to inject logging, profiling, and even deliberate delays into any function. No rebuild required.</p> <p>XRay reserves space at function entry/exit that can be atomically ...
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| 1/31/26 |
<p>Over the past two years, the LLVM community has been building a general-purpose GPU offloading library. While still in its early stages, this library aims to provide a unified interface for launching kernels across different GPU vendors. The long-term vision is to enable diverse projects—ranging from OpenMP® to SYCL™ and beyond—to leverage a common GPU offloading infrastructure.</p> <p>Developing this new library alongside the existing OpenMP® offloading infrastructure has introduced ...
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| 1/31/26 |
<p>LLVM’s ORC JIT [1] is a powerful framework for just-in-time compilation of LLVM IR. However, when applied to large codebases, ORC often exhibits a surprisingly high front-load ratio: we have to parse all IR modules before execution even reaches main(). This diminishes the benefits of JITing and contributes to phenomena as the “time to first plot” latency in Julia, one of ORC’s large-scale users [2].</p> <p>The llvm-autojit plugin [3] is a new experimental compiler extension for ...
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| 1/31/26 |
<p>Every new AI workload seems to need new hardware. Companies spend months designing NPUs (neural processing units), then more months building compilers for them—only to discover the hardware doesn't efficiently run their target workloads. By the time they iterate, the algorithm has moved on.</p> <p>We present a work-in-progress approach that generates NPU hardware directly from algorithm specifications using MLIR and CIRCT. Starting from a computation expressed in MLIR's Linalg dialect, our ...
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| 1/31/26 |
<p>WebAssembly support in Swift started as a community project and became an official part of Swift 6.2. As Swift on WebAssembly matures, developers need robust debugging tools to match. This talk presents our work adding native debugging support for Swift targeting Wasm in LLDB. WebAssembly has some unique characteristics, such as its segmented memory address space, and we'll explore how we made that work with LLDB's architecture. Additionally, we'll cover how extensions to the GDB remote ...
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| 1/31/26 |
<p>llvm-mingw is a mingw toolchain (freely redistributable toolchain targeting Windows), built entirely with LLVM components instead of their GNU counterparts, intended to work as a drop-in replacement for existing GNU based mingw toolchains. Initially, the project mainly aimed at targeting Windows on ARM, but the toolchain supports all of i686, x86_64, armv7 and aarch64, and has been getting use also for projects that don't target ARM.</p> <p>In this talk I describe how the project got started, ...
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