GNU Tools Weekly News Week 35 (April 26, 2026) Note this is earlier this week due to family events on Sunday for me
Release updates for GNU toolchain: * GCC 16 * Branched off * https://inbox.sourceware.org/gcc/[email protected]/T/#me8932cf9b97bbcc68b48b18b300025d57d825ad1 * RC 1 and RC2 were released last week * https://inbox.sourceware.org/gcc/aetiNPseqMyJtQMK@tucnak/T/ * final release is due to Thursday 30th if all goes well * GCC 17 is trunk now * status: https://inbox.sourceware.org/gcc/calvbmcbqufukjg5s+r1ogujdh+yb8gvtwu_rhflumooev5b...@mail.gmail.com/T/ * GDB 17.2.0 release update * https://inbox.sourceware.org/gdb-patches/[email protected]/T/ * valgrind 3.27.0 was released on 20 Apr 2026 * https://valgrind.org/docs/manual/dist.news.html * https://gnu.wildebeest.org/blog/mjw/2026/04/20/anticipating-valgrind-3-27-0/ * Qemu 11.0.0 was released on 21 Apr 2026 * https://gitlab.com/qemu-project/qemu/-/commits/v11.0.0?ref_type=tags GNU toolchain conference news: * FOSSY 2026 toolchain track North America, Aug 6-9 (Vancouver, Canada) * Call for Proposals: https://2026.fossy.ca/call-for-proposals/ * 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 General/big GNU toolchain news (including sourceware news): * GCC Development AI Policy Working Group formed * Led by Jonathan Wakely * https://inbox.sourceware.org/gcc/CAGWvnymkWtb2Koy=kbBFm5pUwOD05_oaB8_ayBVSi=pmaot...@mail.gmail.com/T * https://gcc.gnu.org/wiki/working-group-ai-policy * See also discussion about AI/LLMs: * https://inbox.sourceware.org/gcc/[email protected]/T/ * GCC easy issue to tackle of the week: * * Note this is different from previous weeks; this is cleanup of GCC sources rather than missed optimization * Reach out to Andrea Pinski <[email protected]> for mentoring on this issue. GCC commits: * GCC 17 is now the trunk * d: Implement attribute no_split_stack * https://gcc.gnu.org/r16-8751-ge6ea8245cde290 * cfghooks: Pass data to callback function of make_forwarder_block * https://gcc.gnu.org/r17-23-gcb70dab0e4bfa9 * c++: Add support for [[gnu::trivial_abi]] attribute * https://gcc.gnu.org/r17-43-g1e89650aff94c2 * c++: CWG 2229, cv-qualified unnamed bit-fields [PR123935] * https://gcc.gnu.org/r17-47-ge38ac19123b35c * match: x != -CST ? x + CST : 0 -> x + CST [PR122996] * Easy issue of the week (March 8, 2026) * https://gcc.gnu.org/r17-55-g2b0b9d3c696e50 * dce: eliminate dead relaxed atomic loads with no LHS [PR123966] * https://gcc.gnu.org/r17-75-gf1b16d7a17bf2c * strlen: Use gimple_build/gimple_convert_to_ptrofftype [PR122989] * Easy issue of the week (April 19, 2026) * https://gcc.gnu.org/r17-82-g2985e0bd9b2aee * match: remove bit set/bit clear branch mispredict [PR64567] * https://gcc.gnu.org/r17-83-gb4162b53545220 * scev/niter: Use INTEGRAL_NB_TYPE_P instead of direct comparison to INTEGER_TYPE * https://gcc.gnu.org/r17-89-g78280307c78ead GCC discussion: * GSoC 2026 project discussions from participates * RFC: Standalone AutoFDO Profile Tool for GCC * https://inbox.sourceware.org/gcc/calvbmcdw_zuvew5ypnrzfohey43wvcdundgaydqgmbcmlgn...@mail.gmail.com/T/ * RFC: AutoFDO GCOV Profile Format Version 4 * https://inbox.sourceware.org/gcc/calvbmcaae7chqeg7wha05mgcaxwoh+uas6xmsqp+u0sgoj0...@mail.gmail.com/T/ * Forge update and Archival of forge discussions * https://inbox.sourceware.org/gcc/[email protected]/T/#u * https://inbox.sourceware.org/gcc/[email protected]/T/#u GCC bugzilla stats * new issues filed * issues closed glibc commits: * AArch64: Improve AdvSIMD and SVE pow(f) * https://sourceware.org/cgit/glibc/commit/?id=3f97be129d805f8616842802e102b77ac2cd7558 * AArch64: Implement AdvSIMD and SVE powr(f) routines * https://sourceware.org/cgit/glibc/commit/?id=2ff2565df78160b392b120793d6d1aac2d716701 * glibc discussion: * glibc AI policy (continued) * binutils/gdb commits: * Many improvements to Windows gdb (and gdbserver) support * changes needed before supporting non-stop debugging on Windows * ld: Maintain the input file order * https://sourceware.org/cgit/binutils-gdb/commit/?id=da208daeb710b26608a0b981df215e9da209af80 * Fixes some GCC LTO issues with static linking * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124869 * gdb discussion: * binutils discussion: *
