GNU Tools Weekly News Week 53 (August 30, 2026)

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:
 *