Dear contributor,

Our automatic CI has detected problems related to your patch(es). Please find some details below.

In  aarch64 native, after:
  | gcc patch https://patchwork.sourceware.org/patch/132908
  | Author: Tomasz Kamiński <tkaminsk@redhat.com>
  | Date:   Fri Apr 10 14:28:44 2026 +0200
  | 
  |     [PATCH v2] libstdc++: Export explicit instantiations of __format::__do_vformat_to.
  |     
  |     This patch extracts an __format::__do_vformat_to for the _Sink_iter
  |     (and matching format context) and exports explicit instantiations
  |     of it for wchar and wchar_t. As every format function is implementing
  | ... 36 lines of the commit log omitted.
  | ... applied on top of baseline commit:
  | b753ec3d745 RISC-V: Update RVV intrinsic version to ratified v1.0

Produces 5 regressions 3 fixes:
  | 
  | regressions.sum:
  | Running libstdc++:libstdc++-dg/conformance.exp ...
  | FAIL: 21_strings/basic_string/cons/char/moveable2.cc -std=gnu++20 (test for excess errors)
  | UNRESOLVED: 21_strings/basic_string/cons/char/moveable2.cc -std=gnu++20 compilation failed to produce executable
  | FAIL: 21_strings/basic_string/cons/wchar_t/moveable2.cc -std=gnu++20 (test for excess errors)
  | UNRESOLVED: 21_strings/basic_string/cons/wchar_t/moveable2.cc -std=gnu++20 compilation failed to produce executable
  | ... and 1 more
  | 
  | fixes.sum:
  | Running libstdc++:libstdc++-prettyprinters/prettyprinters.exp ...
  | FAIL: libstdc++-prettyprinters/debug.cc print redirected
  | FAIL: libstdc++-prettyprinters/simple.cc print redirected
  | FAIL: libstdc++-prettyprinters/simple11.cc print redirected

Used configuration :
 *CI config* tcwg_gcc_check aarch64-linux-gnu
 *configure and test flags:* none, autodetected on aarch64-unknown-linux-gnu--disable-multilib --enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419 --with-arch=armv8-a

If you have any questions regarding this report, please ask on linaro-toolchain@lists.linaro.org mailing list.

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The information below contains the details of the failures, and the ways to reproduce a debug environment:

You can find the failure logs in *.log.1.xz files in
 * http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-aarch64-precommit/builds/10148/archive/artifacts/artifacts.precommit/00-sumfiles/
The full lists of regressions and improvements as well as configure and make commands are in
 * http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-aarch64-precommit/builds/10148/archive/artifacts/artifacts.precommit/notify/
The list of [ignored] baseline and flaky failures are in
 * http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-aarch64-precommit/builds/10148/archive/artifacts/artifacts.precommit/sumfiles/xfails.xfail

Current build   : http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-aarch64-precommit/builds/10148/archive/artifacts/
Reference build : http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-aarch64-build/builds/10065/archive/artifacts/

Warning: we do not enable maintainer-mode nor automatically update
generated files, which may lead to failures if the patch modifies the
master files.