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Mon, 14 Sep 2026 18:06:10 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Mon, 14 Sep 2026 18:05:59 -0700 X-Gm-Features: AcwNN1X9BPJMWf3TMyoLIjnqBjyv-7sjV8hcfdCClFVJLBIidC6PRgnPccxEhdE Message-ID: Subject: GNU Tools Weekly News Week 55 (September 13, 2026) To: gcc@gcc.gnu.org, binutils@sourceware.org, libc-alpha@sourceware.org, gdb@sourceware.org, andrew.pinski@oss.qualcomm.com Content-Type: text/plain; charset="UTF-8" X-BeenThere: gdb@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: GNU Tools weekly via Gdb Reply-To: GNU Tools weekly Errors-To: gdb-bounces~public-inbox=simark.ca@sourceware.org Sender: "Gdb" GNU Tools Weekly News Week 55 (September 13, 2026) Sorry I didn't do this until now; family stuff going on. Release updates for GNU toolchain: * GDB 18.1.0 update * Release didn't happen, some bugs came up; delayed until the 25th * https://inbox.sourceware.org/gdb-patches/87h5jscjhu.fsf@redhat.com/ * GCC 13.5.0 was released * https://inbox.sourceware.org/gcc/952104o8-0r3s-oq9q-7619-q1o3r58p4ssq@fhfr.qr/ GNU toolchain conference reminders: * GNU Tools Cauldron 2026, Fri-Sun, October 2-4 (Prague, Czechia) * https://gcc.gnu.org/wiki/cauldron2026 * https://conf.gnu-tools-cauldron.org/prg26/cfp * Toolchains Track at LPC 2026, October 7th (Prague, Czechia) * https://lpc.events/event/20/abstracts/ General/big GNU toolchain news (including sourceware news): * gccrs August 2026 Monthly report * https://inbox.sourceware.org/gcc/8b7f85ea-4cf2-413b-9c88-87d4bd829f46@opensrcsec.com/ * Notes from Sourceware - Building Together, Fri 11, 15:00 UTC * https://inbox.sourceware.org/gcc/20260911201600.GO23490@gnu.wildebeest.org/ * Implementation of GCC's Nested Functions (vs. C++ Lambdas) * https://uecker.codeberg.page/2026-09-05.html * Ghosts and Demons: Undefined Behavior in C2Y (Status 2026-08-23) * https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3957.pdf GCC easy issue to tackle of the week: * `a << CST >> CST` can be simplified into a if upper CST bits of a are known to be zero * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126644 * Reach out to Andrea Pinski for mentoring on this issue. * Previous ones are listed on https://gcc.gnu.org/wiki/EasyIssuesOfTheWeek GCC commits: * https://gcc.gnu.org/r17-3967 ... r17-4211 - 245 commits * ifcvt: Handle arm-only diamond live-outs * https://gcc.gnu.org/r17-3970-g301afaab5b8eaf * middle-end: Improve bitreverse RTL expansion with AOP. * https://gcc.gnu.org/r17-3977-gfb21f1686938d6 * match/fold: support (a CMP b) OP (a CMP b) for more OPs * https://gcc.gnu.org/r17-4001-gbbc2517fe41307 https://gcc.gnu.org/r17-4000 https://gcc.gnu.org/r17-3999 * RISC-V: Rewrite vector FMA patterns using fma rtxes * https://gcc.gnu.org/r17-4002-gc44d962721818b * Cleanup some `build_int_cst (NULL_TREE` * https://gcc.gnu.org/r17-4008 r17-4009 r17-4010 * ranger: give loads from constant tables of floats a range * https://gcc.gnu.org/r17-4024-gc1b5260244cf53 * Recognize CLZ loop for signed non-negative values * https://gcc.gnu.org/r17-4047-ge90e0f66051d33 * https://gcc.gnu.org/r17-4191-g52ceb1698c9f46 * gccrs merge (43 commits) * https://gcc.gnu.org/r17-4130-g4d9b51c8cb1317 ... https://gcc.gnu.org/r17-4088-gb276fbcc9d8ad0 * phiopt/cselim: Support constants for cond_store_replacement_limited * https://gcc.gnu.org/r17-4133-g230d950810f378 * Add clobber parsing to the GIMPLE FE * https://gcc.gnu.org/r17-4148-g9ed526efc2f6ab * match.pd: fold A - MIN (B, C) to A + MAX (-B, -C) * https://gcc.gnu.org/r17-4209-g771f488a90f748 * match.pd: complete the branchless min and max folds * https://gcc.gnu.org/r17-4210-g9d734bb468e714 * rs6000: Add ABI and libgcc support for C23 _BitInt [PR117584] * https://gcc.gnu.org/r17-4163-g83998f47450c08 GCC discussion: * GCC bugzilla stats * 143 new issues filed * 129 issues closed binutils/gdb commits: * RISC-V: Support Zvabd version 0.9 * https://sourceware.org/cgit/binutils-gdb/commit/?id=720f87fd856c31aaf13bd264285fda97376f2535 * RISC-V: Add Sspmp extension support * https://sourceware.org/cgit/binutils-gdb/commit/?id=b16f10037c4814ab03416a4ab143337591881e2b * gdb discussion: * binutils discussion: * glibc commits: * glibc discussion: *