GNU Tools Weekly News Week 38 (May 17, 2026)

[GNU Tools weekly]

GNU Tools Weekly News Week 38 (May 17, 2026)

Release updates for GNU toolchain:
* None

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

General/big GNU toolchain news (including sourceware news):
 * Phoronix review of GCC 16 vs GCC 15 and LLVM
  * https://www.phoronix.com/review/gcc-16-vs-clang-22
 * Native Thread Local Storage (TLS) in msys2 toolchain with GCC 16
  * https://www.msys2.org/news/#2026-05-11-native-thread-local-storage-tls-with-gcc-16
 * Sourceware @ Conservancy Year Three in review
  * https://inbox.sourceware.org/gcc/20260516205232.GD1219@gnu.wildebeest.org/

GCC easy issue to tackle of the week:
 * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109843
 * signbit comparisons -> copysign optimization
 * Reach out to Andrea Pinski <andrew.pinski@oss.qualcomm.com> for
mentoring on this issue.

GCC commits:
 * AArch64: Turn on GPR narrowing pass by default
  * https://gcc.gnu.org/r17-445-ge7dcba03064011
 * Enabling POPCNT generation for 32-bit patterns
  * https://gcc.gnu.org/r17-489-g8ca1e887847e2f
 * Add __builtin_bitreverse{8,16,32,64} builtins
  * https://gcc.gnu.org/r17-523-gc564a8be8a1538
 * match.pd: Simplify ((~x) & y) ^ (x | y)
  * https://gcc.gnu.org/r17-542-gab6c415e13ca87
  * Easy issue of the week (April 12, 2026)

GCC discussion:
 * Warnings for partially-unused structured bindings in C++26 mode
  * https://inbox.sourceware.org/gcc/IwntDp_Q1VxRwhn7aMzNxnY2SVNNCEI8BMw2bMGfoymG74jx1ONjefmAtoNwjrkk2xcpHC7nBhKor_UBDinXr4qGnWi5pbKCkaK4G1RRzfQ=@nicula.xyz/T/#u
 * RFC: GCC support for masked compress stores and VPCOMPRESS-style codegen
  * https://inbox.sourceware.org/gcc/20260514062146.3464666-1-Raghesh.Aloor@amd.com/T/#u

GCC bugzilla stats
 * 99 new issues filed
 * 96 issues closed


glibc commits:
 * arm: Enable static-pie support
  * https://sourceware.org/cgit/glibc/commit/?id=c2d6afb4a010a46e0fc73bb4619db9c3796a3077

glibc discussion:
 * Updated Contribution Checklist - Preference for plain text emails
  * https://inbox.sourceware.org/libc-alpha/2198255.bB369e8A3T@noumea/T/

binutils/gdb commits:
 *

gdb discussion:
 * Fixing commit dates before pushing
  * https://inbox.sourceware.org/gdb/87v7cod8x4.fsf@redhat.com/T/

binutils discussion:
 * RFC: Annotate immediates in x86 disassembly (continued)
  * https://inbox.sourceware.org/binutils/25dd2e82-33ca-465a-aa7c-052c77b7114e@suse.com/T/