[Linaro-TCWG-CI] gcc-16-6913-g304d08fea9e6: 1 regression on arm

[ci_notify@linaro.org]

Dear contributor,

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

In  master-arm, after:
  | commit gcc-16-6913-g304d08fea9e6
  | Author: Matthew Malcolmson <mmalcolmson@nvidia.com>
  | Date:   Tue Jan 20 03:54:51 2026 +0000
  | 
  |     libgomp: Ensure memory sync after performing tasks
  |     
  |     As described in PR 122356 there is a theoretical bug around not
  |     "publishing" user data written in a task when that task has been
  |     executed by a thread after entry to a barrier.
  | ... 89 lines of the commit log omitted.

Produces 1 regression:
  | 
  | regressions.sum:
  | Running libgomp:libgomp.c/c.exp ...
  | FAIL: libgomp.c/pr122356.c execution test

Used configuration :
 *CI config* tcwg_gnu_cross_check_gcc master-arm
 *configure and test flags:* --target arm-linux-gnueabihf 

We track this bug report under https://linaro.atlassian.net/browse/GNU-1822. 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_cross_check_gcc--master-arm-build/2581/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_cross_check_gcc--master-arm-build/2581/artifact/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-arm-build/2581/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-arm-build/2581/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-arm-build/2580/artifact/artifacts

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/304d08fea9e68c5b4806532816b58d33a15a917d/tcwg_gnu_cross_check_gcc/master-arm/reproduction_instructions.txt

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