LLVM Weekly - #640, April 6th 2026. The role of a maintainer, maintainer workload + AI generated fixes, RVCC incubator proposal, JSIR a high-level MLIR-based IR for JavaScript, and more llvmweekly.org/issue/640
LLVM Weekly - #639, March 30th 2026. C++26 is complete, clang-reforge for rewriting codebases for bounds safety, unity builds, DAG combine topological sorting, tailcalls for Clang's bytecode interpreter implementation, and more llvmweekly.org/issue/639
LLVM Weekly - #638, March 23rd 2026. Better frontend benchmarks, Scudo allocator in LLVM libc, byte type in LLVM IR, endian.h, modular printf, and more llvmweekly.org/issue/638
LLVM Weekly - #637, March 16th 2026. 22.1.1 released, so many meetups, RISC-V ropi-rwpi, Br replaced with UncondBr/CondBr, modernize-use-std-bit checker, and more llvmweekly.org/issue/637
LLVM Weekly - #636, March 9th 2026. Template for out-of-tree MLIR optimiser projects, LLVM Research Library, proposed new docs theme, --cstdlib, clang-tidy performance-user-std-move, and more llvmweekly.org/issue/636
LLVM Weekly - #635, March 2nd 2026. LLVM 22.1.0 released, guidance for GSoC 2026 applicants, status of GISel by default for AArch64, bugpoint deleted, and more llvmweekly.org/issue/635
LLVM Weekly - #634, February 23rd 2026. Chris Lattner on the Claude C Compiler, LLVM Foundation board meeting minutes, LLDB accelerator support, removing bugpoint, TSan adaptive delay scheduling, LLDB tree-sitter Swift+Rust syntax highlighting, and more llvmweekly.org/issue/634
LLVM Weekly - #633, February 16th 2026. Area team election results, EuroLLVM early bird pricing ending soon, a long-term vision for improving LLVM build times, SpacemiT X100 scheduling model, clang::no_outline and more llvmweekly.org/issue/633
LLVM Weekly - #632, February 9th 2026. Final day to vote in LLVM area team elections, Hexagon-MLIR open sourced, IR outliner, lots of meetups, WebAssembly GlobalISel, ^^ reflection operator, and more llvmweekly.org/issue/632
LLVM Weekly - #631, February 2nd 2026. GSoC ideas, Scalable Static Analysis Framework linker, MIPS R5900 (PS2 Emotion Engine) support, lots of documentation additions, and more llvmweekly.org/issue/631
LLVM Weekly - #630, January 26th 2026. EuroLLVM registration open, LLVM community area team election voting about to start, more RISC-V LLVM performance improvements, LLVM IR byte type, a flurry of LLVM IR intrinsic additions or changes, and more llvmweekly.org/issue/630
LLVM Weekly - #629, January 19th 2026. Nominations for area team elections open, LLDB developments in 2025, 22.x branched, "human in the loop" AI contribution policy, advanced symbol resolution for clang-repl, optimising conditional traps on x86-64, and more. llvmweekly.org/issue/629
LLVM Weekly - #628, January 12th 2026. 22.x branching tomorrow, LLVM: the bad parts, MLIR python bindings improvements, softPromoteHalfType default for backends, cross-compiling OpenCL libraries, and more llvmweekly.org/issue/628
Nikita Popov (who sadly isn't on Bluesky) has a great new post. LLVM: The bad parts www.npopov.com/2026/01/11/L...
LLVM Weekly - #627, January 5th 2026. Twelve years of LLVM Weekly, EuroLLVM CfP closing soon, GNU toolchain in 2025 summary, PCH to speed-up LLVM builds, LLVM ABI lowering library starting to land, and more llvmweekly.org/issue/627
LLVM Weekly - #626, December 29th 2025. Happy holidays! SFrame feedback, restrict progress, Nvidia Olympus AArch64 CPU scheduling model, libcxx rotate optimisations, and more. llvmweekly.org/issue/626
LLVM Weekly - #625, December 22nd 2025. FOSDEM LLVM dev room program, propeller profile conversion tool, AI tool policy, Arm C1 processors, Lightweight Fault Isolation upstreaming starts, and more llvmweekly.org/issue/625
LLVM Weekly - #624, December 15th 2025. Experience with [[clang:::musttail]], 2025 highlights for the MLIR vector dialect, -fdevirtualize-speculatively, closing the perf gap between RISC-V LLVM and GCC part 1, and more llvmweekly.org/issue/624
Does LLVM produce slower RISC-V code than GCC? Currently, yes.
Can we make LLVM produce faster code? Also, yes!
lukelau.me/2025/12/10/c...
#llvm #riscv
LLVM Weekly - #623, December 8th 2025. EuroLLVM call for proposals, more US dev meeting videos, formal specification for LLVM IR working group, flow-sensitive nullability, LLVM RFC process norms documented, and more llvmweekly.org/issue/623
LLVM Weekly - #622, December 1st 2025. ClangIR upstreaming, advent of compiler optimisations, last chance to submit for the FOSDEM LLVM dev room, -gspilt-dwarf for RISC-V, and more llvmweekly.org/issue/622
We just extended the deadline for the #LLVM dev room at #FOSDEM submissions until 7th of December. There's still time to make your submission at pretalx.fosdem.org/fosdem-2026/... !
Full CFP at discourse.llvm.org/t/88746
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
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
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