Dear contributor,

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

In  arm-eabi cortex-m3 softfp, after:
  | commit gcc-16-5727-g858f30072783
  | Author: Nathaniel Shead <nathanieloshead@gmail.com>
  | Date:   Sat Nov 15 15:27:13 2025 +1100
  | 
  |     c++: Support template block-scope OpenMP user-defined reductions in modules [PR119864]
  |     
  |     There were two issues preventing OpenMP reductions of UDTs from working
  |     in modules.
  |     
  | ... 31 lines of the commit log omitted.

Produces 7 regressions:
  | 
  | regressions.sum:
  | Running g++:g++.dg/modules/modules.exp ...
  | FAIL: g++.dg/modules/omp-4_a.C -std=c++17 (test for excess errors)
  | FAIL: g++.dg/modules/omp-4_a.C -std=c++20 (test for excess errors)
  | FAIL: g++.dg/modules/omp-4_a.C -std=c++26 (test for excess errors)
  | FAIL: g++.dg/modules/omp-4_a.C module-cmi p1 (gcm.cache/p1.gcm)
  | ... and 3 more

Used configuration :
 *CI config* tcwg_gnu_embed_check_gcc arm-eabi -mthumb -march=armv7-m -mtune=cortex-m3 -mfloat-abi=softfp -mfpu=auto
 *configure and test flags:* --target arm-eabi --disable-multilib --with-mode=thumb --with-cpu=cortex-m3 --with-float=softfp --target_board=-mthumb/-march=armv7-m/-mtune=cortex-m3/-mfloat-abi=softfp/-mfpu=auto qemu_cpu=cortex-m3

We track this bug report under https://linaro.atlassian.net/browse/GNU-1768. 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_m3_softfp_eabi-build/613/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_m3_softfp_eabi-build/613/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_m3_softfp_eabi-build/613/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m3_softfp_eabi-build/613/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m3_softfp_eabi-build/612/artifact/artifacts

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/858f300727833740f74d90378a0f302d4254ef37/tcwg_gnu_embed_check_gcc/master-thumb_m3_softfp_eabi/reproduction_instructions.txt

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