GNU Tools Weekly News Week 35 (April 26, 2026)

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_RHFLumOoEV5bkJA@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=PmAOt5xA@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_ZuVew5yPnrZFOhEy43WVCDundgaYDqGMbcmLgnMGA@mail.gmail.com/T/
 * RFC: AutoFDO GCOV Profile Format Version 4
  * https://inbox.sourceware.org/gcc/CALvbMcAaE7ChqEg7wHa05mGCaxWOH+uaS6xmsqP+u0sGOJ0+Fw@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:
 *