GNU Tools Weekly News Week 52 (August 23, 2026)

GNU Tools Weekly News Week 52 (August 23, 2026)

A full year now of the newsletter; next week will start a new thread.
Only one week skipped; the week of the cauldron last year.

Release updates for GNU toolchain:
 *

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
 * Toolchains Track at LPC 2026, October 7th (Prague, Czechia)
  * https://lpc.events/event/20/abstracts/

General/big GNU toolchain news (including sourceware news):
 * Notes from Office Hours for the GNU Toolchain - 2026-08-20
  * https://inbox.sourceware.org/gcc/[email protected]/
  * https://gcc.gnu.org/wiki/OfficeHours
 * GSOC final report: GCC Rust - Compiling the 'alloc' Crate
  * https://inbox.sourceware.org/gcc/[email protected]/
  * https://gccrs.nsvke.com/
 * GSOC final report:Rust Drop trait support in gccrs
  * https://inbox.sourceware.org/gcc/CAHtgQQsUO3dmh4Bi20ScAnwgVfxKzPq6weu-hiMs4YtzyAxP-Q@mail.gmail.com/
 * GSOC final report: Extending C++ Support in -fanalyzer
  * https://inbox.sourceware.org/gcc/[email protected]/

GCC easy issue to tackle of the week:
 *  smax(a,-a) -> abs for RTL
  * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126726
  *  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/r17-3321 ... r17-3567  247 commits
 * allow backward threading to loop exit
   * https://gcc.gnu.org/r17-3330-g4fe2072d5d16ce
 * match.pd: turn more conditional bit_iors unconditional
  * https://gcc.gnu.org/r17-3334-g656bb1d9e96370
 * ranger-op: Handle some relational comparison for some operations
  * https://gcc.gnu.org/r17-3335 r17-3336
 * AVR: Add option for strict address space subset relations
  * https://gcc.gnu.org/r17-3340-gcbf217f4c7076d
 * x86: Add Sub-byte element extraction and Symmetric-signed
saturation narrow support
  * https://gcc.gnu.org/r17-3338-gd3c381c7010c05
 * Recognize long-multiply into regular multiply
  * https://gcc.gnu.org/r17-3437 ... https://gcc.gnu.org/r17-3443
 * ranger: Teach ranger about POLY_INT_CST ranges for VRP.
  * https://gcc.gnu.org/r17-3518-g1dd02e1deffddc
  * https://gcc.gnu.org/r17-3519-ga3fb4bf350d6b7
 * range: Add some non-negative function support
  * https://gcc.gnu.org/r17-3553-g53799b81fad8cd
 * sccp: Handle variable trip count XOR in final value replacement
  * https://gcc.gnu.org/r17-3460-g62993cc9d2200e
 * libstdc++: Optimize chrono year::is_leap
  * https://gcc.gnu.org/r17-3387-g28b1b55c60464d

GCC discussion:
 * GSOC reports: see general big GNU toolchain news section

GCC bugzilla stats
 * 110 new issues filed
 *  76 issues closed

binutils/gdb commits:
 * gdb: Fix for ifunc malloc
  * https://sourceware.org/cgit/binutils-gdb/commit/?id=de930032d883219559d1dba575f2c0f5359e80fc
  * https://sourceware.org/cgit/binutils-gdb/commit/?id=ca0908d623605250e6d84afb90d742c328e6bb90
 * gdb: Prevent downgrading of hardware watchpoints if possible
  * https://sourceware.org/cgit/binutils-gdb/commit/?id=7ee28b5aee4eaadffadf1df9a555a7737e5e744c

gdb discussion:
 *
binutils discussion:
 *
glibc commits:
 * malloc: aarch64: Add ifuncs for malloc functions (add back after
gdb fix; see above)
  * https://sourceware.org/cgit/binutils-gdb/commit/?id=7ee28b5aee4eaadffadf1df9a555a7737e5e744c
glibc discussion:
 *