GCC - GNU Toolchain

Musl libc 1.2.6 Released openwall.com/lists/musl/202…

The @gnutools GNU C Library Lands x86_64 FMA'ed cosh For A ~35% Improvement phoronix.com/news/Glibc-Fas…

GNU Tools Weekly News Week 29 (March 15, 2026) Release updates for GNU toolchain:  * GCC 16.0.1 release status:   * @fhfr.qr/T/#u" target="_blank" rel="nofollow noopener">inbox.sourceware.org/gcc/6277162s-n…  * gcc 16.0 regression status (note this is not official numbers, it might be off by a few)   * P1:                       11            -5   * P1+P2+P3 total: 776           -17 General/big GNU toolchain news:  * Dimitar Dimitrov was appointed as PRU binutils maintainer   * @suse.com/T/#m8dcf81087b993f0b82b392d72427b3e73a4dc920" target="_blank" rel="nofollow noopener">inbox.sourceware.org/binutils/fa6e9…   * sourceware.org/cgit/binutils-… GCC easy issue to tackle of the week:  * `(x ^ (-CMP)) + CMP` -> `CMP ? -x : x`   * gcc.gnu.org/bugzilla/show_…   * Reach out to Andrew Pinski @oss.qualcomm.com> for mentoring on this issue. GCC commits:  * note most of the commits from now until the release are bug fixes which have not been listed here normally  * arm: Add support for _BitInt(N)   * gcc.gnu.org/cgit/gcc/commi…  * c++: require C++26 for -freflection   * gcc.gnu.org/cgit/gcc/commi…  * doc: Move specs documentation to GCC internals manual   * gcc.gnu.org/cgit/gcc/commi…  * GCC discussion:  * GSoC 2026 project discussions from participates  * Policy on use of LLM tools and bug fixes   * @mail.gmail.com/T/#m4365c662ccc0af15fe987fdd87556fb842e62d2a" target="_blank" rel="nofollow noopener">inbox.sourceware.org/gcc/CAFiYyc3Xo…  * [RFC] Builtins for C++26 integer atomic reductions   * @nvidia.com/T/#m32107687793209cbbaa543c10e139cf381e121ed" target="_blank" rel="nofollow noopener">inbox.sourceware.org/gcc/ECACB51F-C…  * Questions on PROMOTE_MODE, function_promote_mode   * @oss.qualcomm.com/T/#md49ec554ad57e804e4f055ee8ab273d8a2c9a740" target="_blank" rel="nofollow noopener">inbox.sourceware.org/gcc/306d4117-9…  * GCC bugzilla stats  * 126 new issues filed  * 119 issues closed glibc commits:  * LoongArch: Optimize float environment functions   * sourceware.org/cgit/glibc/com…  * Support loading libunwind (from LLVM compile-rt) instead of libgcc_s   * sourceware.org/cgit/glibc/com…  * malloc: Improve memalign alignment   * sourceware.org/cgit/glibc/com… glibc discussion:  * [Question] Will switching Linux UAPI headers from __ASSEMBLY__ to __ASSEMBLER__ affect glibc?   * @mail.gmail.com/T/#m28911e194ed53e1e0e982815f6d035f9fb73c3c5" target="_blank" rel="nofollow noopener">inbox.sourceware.org/libc-alpha/CAB…  * glibc test time regression after gawk update   * @freefriends.org/T/#me1cf4fe55daef0968479dcb9db5f971bc6770127" target="_blank" rel="nofollow noopener">inbox.sourceware.org/libc-alpha/202…  * binutils/gdb commits:  * gdb: boolification   * Many commits so not listing  * bfd: boolification   * Likewise gdb discussion: *  binutils discussion:  *

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

GNU Tools Weekly News Week 28 (March 8, 2026) Release updates for GNU toolchain: * gcc 16.0 regression status * P1: 16 -5 * P1+P2+P3 total: 793 -19 General/big GNU toolchain news: * The Compile Farm Project now hosts two NVIDIA DGX Spark and one NVIDIA Jetson AGX Thor * portal.cfarm.net/news/56 * portal.cfarm.net/news/58 GCC easy issue to tackle of the week: * Missed optimization for branch folding with unsigned arithmetic wraparound * gcc.gnu.org/bugzilla/show_… * Reach out to Andrew Pinski @oss.qualcomm.com> for mentoring on this issue GCC commits: * note most of the commits from now until the release are bug fixes which have not been listed here normally * x86: Many -masm=intel fixes for AVX/AVX2/AVX512 GCC discussion: * GSoC 2026 project discussions from participates * SFrame for C++ coroutine stack traces * @oracle.com/T/#u" target="_blank" rel="nofollow noopener">inbox.sourceware.org/gcc/ae4cf3a0-2… GCC bugzilla stats * 91 new issues filed * 81 issues closed glibc commits: * math: Sync log1pf, log2p1f, log10f, and log10p1f with CORE-MATH * AArch64: Improve memset when len is 64 glibc discussion: * Adjust the _Float16 ABI to return in a GPR (32bit x86) * @mail.gmail.com/T/" target="_blank" rel="nofollow noopener">inbox.sourceware.org/libc-alpha/CAO… binutils/gdb commits: * PowerPC: Support for SHA2 and SHA3 Compute Instructions (RFC02654) * libiberty sync from gcc repo gdb discussion: * binutils discussion: *

The @gnutools GCC 16 Compiler Aiming For Mid-April Release Candidate But "Slow" Progress On Fixes phoronix.com/news/GCC-16-RC…

The Compile Farm Project now hosts two NVIDIA DGX Spark and one NVIDIA Jetson AGX Thor for OSS Developer access! Thanks to @nvidia for the systems and Adelie Linux for hosting! portal.cfarm.net/news/56 portal.cfarm.net/news/58

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

GNU Tools Weekly News Week 27 (March 1, 2026) Release updates for GNU toolchain: * gcc 16.0 regression status * P1: 21 -0 * P1+P2+P3 total: 812 -11 General/big GNU toolchain news: * Sourceware/OSUOSL upgraded buildbot CI and forgejo runner workflow server * @gnu.wildebeest.org/T/#m07d26322c0052164a008b5215254a4444f6ee32b" target="_blank" rel="nofollow noopener">inbox.sourceware.org/gcc/2026021400… * Starting patch review wiki * gcc.gnu.org/wiki/StartingP… GCC easy issue to tackle of the week: * (len | N) == len is transformed to len & N != 0 * gcc.gnu.org/bugzilla/show_… * Reach out to Andrew Pinski @oss.qualcomm.com> for mentoring on this issue * note about week 24 easy issue to tackle * patch submitted and reviewed (waiting for stage 1) * @mail.gmail.com/T/" target="_blank" rel="nofollow noopener">inbox.sourceware.org/gcc-patches/CA… GCC commits: * note most of the commits from now until the release are bug fixes which have not been listed here normally * gccrs: 46 patch merge * Fortran: Shared-memory Coarrays * gcc.gnu.org/onlinedocs/gfo… * aarch64: support SME without SVE enabled GCC discussion: * [RFC] Builtins for C++26 integer atomic reductions * @nvidia.com/T/#u" target="_blank" rel="nofollow noopener">inbox.sourceware.org/gcc/ECACB51F-C… * RFC (C only): [[gnu::allow_vla]] attribute to suppress -Wvla on a single declaration * @hesbynett.no/T/#m5c80e7ba3866b0630db1a53bb5e09d1585f3aeac" target="_blank" rel="nofollow noopener">inbox.sourceware.org/gcc/e909b7db-e… * GCC bugzilla stats * 107 new issues filed * 79 issues closed glibc commits: * AArch64: Single and Double precision hyperbolics, SVE and AdvSIMD optimisations * AArch64: Vectorise SVE log/log2/log10 single and double precision special cases. * AArch64: Single and Double precision entire exp family, SVE and AdvSIMD optimisations * aarch64: Vectorise inverse hyperbolic special cases glibc discussion: * Meeting Minutes - glibc Office Hours (glibc branch maintenance and move to gitolite) - 2026-02-27 * @mail.gmail.com/T/" target="_blank" rel="nofollow noopener">inbox.sourceware.org/libc-alpha/CA+… binutils/gdb commits: * gdb: implement "info proc environ" * gdb discussion: * binutils discussion: *

GNU Tools Weekly News Week 26 (February 22, 2026) Release updates for GNU toolchain: * gcc 16.0 regression status * P1: 21 -4 * P1+P2+P3 total: 823 -11 General/big GNU toolchain news: * Jens Gustedt's blog: Defer available in gcc and clang * gustedt.wordpress.com/2026/02/15/def… * GCC 2.95.3 binary pack for 68k Amiga * rastport.com/techblog/gcc-p… * Office Hours for the GNU Toolchain was helded on Thursday February 19, 2026 * meeting notes can be found at gcc.gnu.org/wiki/OfficeHou… * GCC has been accepted as a GSoC 2026 mentoring organization * @virgil.suse.cz/T/#m7fc97a3b91de9773e196fb42d01be755be3e054e" target="_blank" rel="nofollow noopener">inbox.sourceware.org/gcc/ri68qcnni5… * gcc.gnu.org/wiki/SummerOfC… GCC easy issue to tackle of the week: * (a>>N) != (b>>N) is not optimized to (a^b) >= (1<gcc.gnu.org/bugzilla/show_… * Reach out to Andrew Pinski @oss.qualcomm.com> for mentoring on this issue GCC commits: * note most of the commits from now until the release are bug fixes which have not been listed here normally * c++: Implement __builtin_constexpr_diag (aka P2758 implementation) * c++: Implement proposed CWG 3123 resolution GCC discussion: * Emacs mode for Machine Description files * @baylibre.com/T/#u" target="_blank" rel="nofollow noopener">inbox.sourceware.org/gcc/86y0ksbqrz… GCC bugzilla stats * 97 new issues filed * 94 issues closed glibc commits: * aarch64: Lock GCS status at startup glibc discussion: * binutils/gdb commits: * gdb: Add "save user" command * gdb: Add "save skip" command * gdb: Add "save history" command gdb discussion: * binutils discussion: *

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

Are compilers deterministic? blog.onepatchdown.net/2026/02/22/are…

Defer available in GCC and Clang gustedt.wordpress.com/2026/02/15/def…

GNU Toolchain Office Hours starting soon! Europe/Americas: Thursday, Feb 19 at 8:00 AM PST / 11:00 AM EST / 16:00 CET gcc.gnu.org/wiki/OfficeHou… #GNUToolchain #OpenSource #GCC #GDB #GLIBC

GNU Tools Weekly News Week 25 (February 15, 2026) Release updates for GNU toolchain: * gcc 16.0 regression status * P1: 25 -4 * P1+P2+P3 total: 834 -26 General/big GNU toolchain news: * Core Toolchain Infrastructure Office Hours held weekly * Sourceware Open Office was held Friday, February 13, 2026 * virtual machines, virtual communities * Minutes will provided later on * Notice for the meeting: @gnu.wildebeest.org/T/#mb31f7907f11b667f4a653169df77657c2a37a3ff" target="_blank" rel="nofollow noopener">inbox.sourceware.org/gcc/2026021400… * Office Hours for the GNU Toolchain will happen on Thursday February 19, 2026 * gcc.gnu.org/wiki/OfficeHou… * Asian Friendly one: 0900h "Asia/Kolkata" * US/EU Friendly one: 1100h EST5EDT GCC easy issue to tackle of the week: * Transform if (a[i] > 0) sum += a[i] into sum += max (0, a[i]) when vectorizing and have conditional add * gcc.gnu.org/bugzilla/show_… * Reach out to Andrew Pinski @oss.qualcomm.com> for mentoring on this issue GCC commits: * note most of the commits from now until the release are bug fixes which have not been listed here normally * Add copy prop for aggregates into a return * libgcobol: Add --with-target-libxml2{,-lib,-include}= * MinGW: Reject dll{im,ex}port attribute on TLS variables GCC discussion: * BPF weekly open office minutes - 09 - Feb - 2026 * @gnu.org/T/#u" target="_blank" rel="nofollow noopener">inbox.sourceware.org/bpf/87ldh1lk1g… GCC bugzilla stats * 73 new issues filed * 90 issues closed glibc commits: * support: Add support for starting and stopping nscd * Linux: In getlogin_r, use utmp fallback only for specific errors glibc discussion: * Meeting Minutes - Office Hours for CTI - 2026-02-13 * @redhat.com/T/" target="_blank" rel="nofollow noopener">inbox.sourceware.org/libc-alpha/41a… binutils/gdb commits: * binutils: Mark all Solaris targets. except Solaris 10, as obsolete. * gdb: remove arm simulator support

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

Here is our report for the first month of 2026, with an interesting little dive into a name resolution problem we fixed this month :) rust-gcc.github.io/2026/02/10/202…

GNU Tools Weekly News Week 24 (February 8, 2026) Release updates for GNU toolchain: * binutils 2.46 was released * @Gerda.invalid/T/#t" target="_blank" rel="nofollow noopener">inbox.sourceware.org/binutils/87fr7… * gcc 16.0 regression status * P1: 29 * P1+P2+P3 total: 860 General/big GNU toolchain news: * GCC easy issue to tackle of the week: * New feature this week, This is a highlight of one bug report that would be a good issue for someone new to GCC to fix * If others want to sponsor an issue please let me know and I can add that one for the week (gdb, binutils and glibc issues welcome too) * lower mempcpy to memcpy when result is unused * gcc.gnu.org/bugzilla/show_… * Reach out to Andrew Pinski for mentoring on this issue GCC commits: * note most of the commits from now until the release are bug fixes which have not been listed here normally * doc: Move parameter docs to the GCC internals manual * Removal of CONST_CAST and related macros (C++ification cleanup) GCC discussion: * GCC bugzilla stats * 118 new issues filed * 136 issues closed glibc commits: * math: Order signed zeros in f{max,min}{,mag}{f,l,f128} * math: Optimize f{max,min}imum{,_num,_mag,_mag_num}{f,l,f128} * AArch64: Optimize memcpy for Kunpeng 950 processor * AArch64: Add if('fastmath') to math-vector-fortran.h binutils/gdb commits: * PowerPC: Support for Elliptic Curve Cryptography Instructions (RFC02669) * [gold] Note gold and dwp deprecation in NEWS * bpf: add may_goto instruction

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

GNU Binutils 2.46 Released 🚀Support for new instructions added to AMD, ARM and RISC-V architectures. 🚀Support for SFrame v3 standard. 🚀The readelf program can now display the contents of Global Offset Tables. 🚀Improved linker tagging support. sourceware.org/pipermail/binu…