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GNU Tools Weekly@gnutoolsweekly@hachyderm.io (2026-09-28 16:42:52)
https://inbox.sourceware.org/gcc/CAHt=NyN6s2wmSTh+zgE6WWQ6-eg1-Gvbj_5a1njqz3jM4LivDQ@mail.gmail.com/

GNU Tools Weekly News Week 57 (September 27, 2026)

Release updates for GNU toolchain:
 * GDB 18.1.0 was released
  * https://inbox.sourceware.org/gdb/announce.6ab698d7.84bf0792.34ed8d.a212@mx.google.com/

GNU toolchain conference reminders:
 *  GNU Tools Cauldron 2026 October 2-4 (Prague)
  * https://gcc.gnu.org/wiki/cauldron2026
  * https://conf.gnu-tools-cauldron.org/prg26/cfp
 * Toolchains Track at LPC 2026, October 7th (Prague)
  * https://lpc.events/event/20/abstracts/

GCC easy issue to tackle of the week:
 *  optimizing float div
  * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83715
  *  Reach out to Andrea Pinski <andrew.pinski@oss.qualcomm.com> for
mentoring on this issue.
 * Previous ones are listed on https://gcc.gnu.org/wiki/EasyIssuesOfTheWeek

GCC commits:
 * https://gcc.gnu.org/r17-4503 ... r17-4705 -  203 commits
 * match: redundant integer-float-integer conversions
  * https://gcc.gnu.org/r17-4503-gd0e28326d4254e
 * match: extract-bitfield-and-shift expressions
  * https://gcc.gnu.org/r17-4511-g885ad73e630ca2
 * aarch64: Improve isnan, isfinite, isinf isnormal and fpclassify
  * https://gcc.gnu.org/r17-4523-ge8fb8ba77cf7a1
  * https://gcc.gnu.org/r17-4524-g52330debcdf1fc
  * https://gcc.gnu.org/r17-4525-g5cc9ef64063c45
 * Improve libstdc++ regex
  * https://gcc.gnu.org/r17-4552 ... https://gcc.gnu.org/r17-4555
 * simplify-rtx: [SU]MUL_HIGHPART
  * https://gcc.gnu.org/r17-4656-gd382f953805cb0
 * C++26 P3769R1: Clarification of placement new deallocation as a DR
  * https://gcc.gnu.org/r17-4658-geed9f52920aa36
 * range-ops: derive operand equality from a zero MINUS_EXPR
  * https://gcc.gnu.org/r17-4663-gbddea69ee406a0
 * match.pd: Fold (a != 0) | (popcount(a) == n)
  * https://gcc.gnu.org/r17-4693-g56efa4a739786b
 * vect: Look through promotions for SAT_TRUNC
  * https://gcc.gnu.org/r17-4697-g19378ecd385156
 * middle-end: fold VEC_UNPACK_LO/_HI over