[Linaro-TCWG-CI] gcc-16-3612-gc39dbb652faf: 6 regressions on master-thumb_m23_soft_eabi

[ci_notify@linaro.org]

Dear contributor,

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

In  arm-eabi cortex-m23 soft, after:
  | commit gcc-16-3612-gc39dbb652faf
  | Author: Nathaniel Shead <nathanieloshead@gmail.com>
  | Date:   Sun Aug 31 14:47:43 2025 +1000
  | 
  |     c++/modules: Support ADL on non-discarded GM entities [PR121705]
  |     
  |     [basic.lookup.argdep] p4 says that ADL also finds declarations of
  |     functions or function templates from a point of lookup within the
  |     module, only ignoring discarded (or internal) GM entities.
  | ... 48 lines of the commit log omitted.

Produces 6 regressions:
  | 
  | regressions.sum:
  | Running g++:g++.dg/modules/modules.exp ...
  | UNRESOLVED: g++.dg/modules/default-arg-4 -std=c++17 execute
  | UNRESOLVED: g++.dg/modules/default-arg-4 -std=c++17 link
  | UNRESOLVED: g++.dg/modules/default-arg-4 -std=c++20 execute
  | UNRESOLVED: g++.dg/modules/default-arg-4 -std=c++20 link
  | ... and 2 more

Used configuration :
 *CI config* tcwg_gnu_embed_check_gcc arm-eabi -mthumb -march=armv8-m.base -mtune=cortex-m23 -mfloat-abi=soft -mfpu=auto
 *configure and test flags:* --target arm-eabi --disable-multilib --with-mode=thumb --with-cpu=cortex-m23 --with-float=soft --target_board=-mthumb/-march=armv8-m.base/-mtune=cortex-m23/-mfloat-abi=soft/-mfpu=auto qemu_cpu=cortex-m33

We track this bug report under https://linaro.atlassian.net/browse/GNU-1674. Please let us know if you have a fix.

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
 * https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m23_soft_eabi-build/465/artifact/artifacts/00-sumfiles/
The full lists of regressions and improvements as well as configure and make commands are in
 * https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m23_soft_eabi-build/465/artifact/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m23_soft_eabi-build/465/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m23_soft_eabi-build/465/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m23_soft_eabi-build/464/artifact/artifacts

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/c39dbb652fafbb06507d23dcec6627ac9a9398cf/tcwg_gnu_embed_check_gcc/master-thumb_m23_soft_eabi/reproduction_instructions.txt

Full commit : See in git+ssh://linaroci@gcc.gnu.org/git/gcc.git