GNU Tools Weekly News Week 53 (August 30, 2026) A start of the new year for the newsletter!
Release updates for GNU toolchain: * GDB 18.1.0 update * delayed until September 11th * https://inbox.sourceware.org/gdb-patches/[email protected]/T/ 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 * cfp closes August 31st (tomorrow) * Toolchains Track at LPC 2026, October 7th (Prague, Czechia) * https://lpc.events/event/20/abstracts/ General/big GNU toolchain news (including sourceware news): * Sourceware Infrastructure news - AI scrapping and website throttling * https://inbox.sourceware.org/gcc/[email protected]/ * Accuracy of Mathematical Functions (glibc) * https://inbox.sourceware.org/libc-alpha/p9u0wltelndm.fsf@thym/ GCC easy issue to tackle of the week: * umax(a,b)==0 folding into a|b==0 gets in the way sometimes * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126880 * Reach out to Andrea Pinski <[email protected]> for mentoring on this issue. * Previous ones are listed on https://gcc.gnu.org/wiki/EasyIssuesOfTheWeek GCC commits: * https://gcc.gnu.org/r17-3568 r17-3774- 207 commits * RISCV: Support -mcpu=native * https://gcc.gnu.org/r17-3578 https://gcc.gnu.org/r17-3577 https://gcc.gnu.org/r17-3577 * RISCV: Add sifive-p550 and sifive-p870-d * https://gcc.gnu.org/r17-3579-g7ca5288cc68ff5 * hoist invariants after unswitching * https://gcc.gnu.org/r17-3584-g66ed104db50c63 * genmatch: Don't emit the ssa name checks for cond^ * https://gcc.gnu.org/r17-3612-gf77f607c42df40 * range: add VREL_EQ relation effect for div and mod * https://gcc.gnu.org/r17-3610-g7c25b09da5841c * Easy issue for week 50 * phiopt: replicate conditionals over a PHI of comparisons * https://gcc.gnu.org/r17-3622-g804ff22702eca4 * aarch64: Support FCCMP and FCCMPE for _Float16 * https://gcc.gnu.org/r17-3628-g263ce2e907f722 * libstdc++: optional: Treat _M_engaged as being assumed to be false after the destructor * https://gcc.gnu.org/r17-3656-ge982f847aab9f7 * aarch64: allow usage of zero reg for CRC32 instructions * https://gcc.gnu.org/r17-3684-g004a9da1bde785 * c-family: honor explicit -Wstrict-aliasing under -fno-strict-aliasing * https://gcc.gnu.org/r17-3685-g39ba948f9b86e1 * aarch64: Recognize vector permute patterns which can be optimized as REV64+EXT * https://gcc.gnu.org/r17-3712-g4182cf11e1e3d2 * c++: unshare RANGE_EXPR CONSTRUCTOR index * https://gcc.gnu.org/r17-3765-g40cbcd4eedce58 * GCC discussion: * GCC bugzilla stats * 125 new issues filed * 95 issues closed binutils/gdb commits: * x86: Support AVX10_V2_AUX instructions * https://sourceware.org/cgit/binutils-gdb/commit/?id=84b5fe5be98582a247346f4fba8072f286498dad * gdb discussion: * binutils discussion: * glibc commits: * math: Update tanh from CORE-MATH (revision bb39e4fa) * https://sourceware.org/cgit/glibc/commit/?id=70cc22b19c2037097f0f0cce89488763c6c49f5b * x86: Update AVX10 support * https://sourceware.org/cgit/glibc/commit/?id=56f3aed8bb8be64d1a78488a427e7c61c7c866cf * glibc discussion: *
