Thankful for the wonderful developer community who contribute to the GNU Toolchain (GCC, GDB, GLIBC, Binutils)!

GNU C Library Sees Up To 12.9x Improvement With New Generic FMA Implementation - https://www.phoronix.com/news/Glibc-New-Generic-FMA

For those not celebrating Thanksgiving in the US or those wishing for an excuse to escape Thanksgiving... Another regularly scheduled GNU Toolchain Office Hours Thursday, November 27 at 8:00 AM PT / 11:00 AM ET / 16:00 CET gcc.gnu.org/wiki/OfficeH...

LLVM Weekly - #621, November 24th 2025. Final call for FOSDEM LLVM devroom, US LLVM dev meeting videos starting to appear, minimum compiler requirements for building LLVM, naming address spaces, ORC design docs, and more llvmweekly.org/issue/621

LLVM Weekly - #620, November 17th 2025. EuroLLVM save the date, 'strong typedefs' in Clang, LLVM GC, MLIR minimum Python version, __builtin_bswapg, std::optional<T&>, and more llvmweekly.org/issue/620

GNU Binutils 2.45.1 Released! Lots of bug fixes! sourceware.org/pipermail/bi...

LLVM Weekly - #619, November 10th 2025. DFAJumpThreading on by default for CoreMark perf boost, further CAS development, MLIR pygments lexer improvements, Arm contributions to LLVM 21, and more llvmweekly.org/issue/619

Arm improvements in LLVM 21 developer.arm.com/community/ar...

LLVM Weekly - #618, November 3rd 2025. Dev meeting roundtable notes, ABI lowering library blog post, Neoverse V3 scheduling model, Boost.Math imported, llvm.structured.gep, and more llvmweekly.org/issue/618

LLVM Weekly - #617, October 27th 2025. Clang AST optimisations, LLVM contribution rate dashboard, Clang/LLVM built for Wasm available on NPM, and more. For those able to make it, enjoy the LLVM Dev Meeting this week! llvmweekly.org/issue/617

LLVM Weekly - #616, October 20th 2025. Usability improvements to the Undefined Behavior Sanitizer, Clang bytecode interpreter developments, reducing process creation overhead for LLVM tests, null pointer arithmetic checker, and more llvmweekly.org/issue/616

LLVM Weekly - #615, October 13th 2025. Final call for 2025 US LLVM Dev Meeting registration, GNU Tools Cauldron 2025 videos posted, feedback on MLIR remarks, type punning through unions in C++, allocator partitioning hints, reproducible linker benchmarks with Nix, and more llvmweekly.org/issue/615

Defer: Resource cleanup in C with GCCs magic oshub.org/projects/ret...

LLVM Weekly - #613, September 29th 2025. clang-doc and libc bfloat16 GSoC project results, LLVM's machine scheduler, the future of DependenceAnalysis, {aarch64,riscv64}-unknown-hurd-gnu, software watchpoints in LLDB, and more llvmweekly.org/issue/613

LLVM Weekly - #612, September 22nd 2025. Lightweight Fault Isolation, student travel grant mentors, immutable releases, AI contribution policy, RISCVVLOptimizer improvements, dropping unnecessary assumes, custom clang-tidy checks with clang-query syntax, and more llvmweekly.org/issue/612

LLVM Weekly - #611, September 15th 2025. Ripple: A Compiler-Interpreted API for Efficient SIMD Programming, guidelines for adding/enabling new passes, on 'de-typification' of LLVM IR, lit using internal shell by default for LLVM tests, MLIR IRDL roadmap, and more llvmweekly.org/issue/611

According to the most recent Rust compiler performance survey, mold is the most popular alternative linker! blog.rust-lang.org/2025/09/10/r...

LLVM Weekly - #610, September 8th 2025. LLVM IR byte type, commits via PRs only, ABI lowering library update, LLVM Code Generation book from Quentin Colombet, debugging LLVM, and more llvmweekly.org/issue/610

LLVM Weekly - #609, September 1st 2025. LLVM 21.1.0 released! profiling and testing math functions on GPUs (GSoC), MLIR pattern search, UBSan "trap reasons", early bird registration deadline for dev meeting on Sep 5th, Andrew Pinski launches GNU Tools Weekly, and more llvmweekly.org/issue/609

LLVM Weekly - #608, August 25th 2025. llvm-lit --update-tests, big pointer auth documentation updates, lifetime safety analysis initial use-after-free diagnostic, MLIR remarks, OpenMP unit testing framework, and more llvmweekly.org/issue/608

LLVM Weekly - #607, August 18th 2025. 21.1.0-rc3 (final RC?), Contend Addressable Storage in LLVM, cfi_salt, MLIR Wasm importer, and more llvmweekly.org/issue/607

LLVM Weekly - #606, August 11th 2025. Constant-time selection in Clang for crypto algorithms, tail folding by default for RVV, clangd doxygen parser, WasmSSA MLIR dialect, and more llvmweekly.org/issue/606

Going faster than GLIBC memcpy? squadrick.dev/journal/goin...

LLVM Weekly - #605, August 4th 2025. US LLVM Dev Meeting agenda posted, upstreaming CHERI, restrict in Clang, GlobalISel vs SelectionDAG in 2025, 'hardening' mode for Clang, log level support, debugging Wasm with LLDB, and more llvmweekly.org/issue/605

GNU C Library 2.42 Released With SFrame Support, Newer Intel CPU Detection - https://www.phoronix.com/news/GNU-C-Library-glibc-2.42

LLVM Weekly - #604, July 28th 2025. LLVM ❤️ ML workshop, implementing C++17 special math functions with Boost.Math, flang-tidy, LDBG debug logging macro, -f[no]-experimental-lifetime-safety, and more llvmweekly.org/issue/604

LLVM Weekly - #603, July 21st 2025. 21.x branch created, allocator partitioning hint, -opt-disable to disable pass by name, SFrame unwind info, generating dead_on_return attributes, lifetime safety dataflow analysis progress, and more llvmweekly.org/issue/603

LLVM Begins Landing Distributed ThinLTO "DTLTO" Support - https://www.phoronix.com/news/LLVM-DTLTO-Distributed-Thin

LLVM Weekly - #602, July 14th 2025. LLVM Dev Meeting talk and student travel grant deadline TOMORROW (Tue 15th), lifetime safety breakout group, Clang gains an initial intra-procedural flow-sensitive lifetime analysis, minimal DWARF unwinding information checker, and more llvmweekly.org/issue/602

LLVM Weekly - #601, July 7th 2025. AsiaLLVM Dev Meeting videos posted, LLD support for GCC LTO, disallowing struct/array IR values inside functions, XeVM MLIR dialect, and more llvmweekly.org/issue/601

Building the Rust compiler with GCC fractalfir.github.io/generated_ht...

LLVM Weekly - #599, June 23rd 2025. Functional safety group proposal, stdio.h baremetal support in libc, IRDL principles, InstCombine contributor guide updates, Model Context Protocol (MCP) server support added to LLDB, and more llvmweekly.org/issue/599

LLVM Weekly - #598, June 16th 2025. widechar support for LLVM libc, PGO for cross-compilation, MCP support for LLDB, clang-doc JSON generator, removing PSTL, and more llvmweekly.org/issue/598

LLVM Weekly - #597, June 9th 2025. LLVM Developers' Meeting call for proposals opens, MLIR dialect for WebAssembly, MLIR project lighthouse, what patterns can/should be upstreamed to MLIR, 64-bit source locations, reducing the size of the MC decoder table, and more llvmweekly.org/issue/597

Mold 2.40.1 Released! Although there are no new features, it includes a few nice performance improvements, especially for those building very large executables. github.com/rui314/mold/...

GCC 13.4 Released with 129 additional bug fixes sourceware.org/pipermail/gc...

LLVM Weekly - #596, June 2nd 2025. Dataflow analysis in MLIR, RVV code generation improvements overview, more on changing LLVM's release process, removing support for delayed type correction, GPU-side malloc in libc, PTRADD SDag node, and more llvmweekly.org/issue/596

Linux 6.16 Now Enforces A Minimum Compiler Version Of GCC 8 - https://www.phoronix.com/news/Linux-6.16-Requires-GCC-8-Min

LLVM Weekly - #595, May 26th 2025. AsiaLLVM registration last call, GCC backend for rustc milestone, release process changes proposal, integrated distributed ThinLTO, and more llvmweekly.org/issue/595

mold linker 2.40.0 is out! This version includes a feature to prevent relocation overflow errors in debug sections exceeding 4 GiB when linking extremely large executables in debug mode. github.com/rui314/mold/...

Rust Makes Progress On Async Rust Experience, Stabilizing Tooling For Rust In The Kernel - https://www.phoronix.com/news/Rust-Projects-Mid-2025

Rust Coreutils 0.1 Released With Big Performance Gains - Can Match Or Exceed GNU Speed - https://www.phoronix.com/news/Rust-Coreutils-0.1-Released

GCC 14.3 Compiler Released With 200+ Bug Fixes - https://www.phoronix.com/news/GCC-14.3-Released

LLVM Weekly - #594, May 19th 2025. All EuroLLVM talks now up on YouTube, 20.1.5, dealing with spam on GitHub, EVLIndVarSimplify, polynomial MLIR dialect removed, and more llvmweekly.org/issue/594

Jonathan talks to cppcast about libstdc++ (GCC's standard library implementation), of which he is the lead maintainer, and tackles some tough questions like ABI compatibility - and how GCC and libstdc++ approach it. cppcast.com/libstdcpp/

LLVM Weekly - #593, May 12th 2025. EuroLLVM videos available, RISC-V LLVM improvements, weighing the cost of each template instantiation, Polonius-inspired intra-procedural lifetime analysis, trivial relocation, and more llvmweekly.org/issue/593

Sovereign Tech funds GFortran development www.sovereign.tech/tech/gfortran

Python just got a major speed boost, but only if you compile it with Clang.

LLVM Weekly - #592, May 5th 2025. LLVM LTS discussion updates, quadratic scaling of bufferization, -ftime-report-json, Flang using precompiled headers during build, -Wunterminated-string-initialization, and more llvmweekly.org/issue/592

Rust Use Within The QEMU Emulator Shaping Up Well - https://www.phoronix.com/news/Rust-QEMU-Progress-Q2-2025