Hi,
I am unable to reproduce the issue, and cannot access the included log files to check the failure. Could you please share the revelant part of log, at least from time/hash.cc?
On Fri, Jan 9, 2026 at 10:23 PM ci_notify@linaro.org wrote:
Dear contributor,
Our automatic CI has detected problems related to your patch(es). Please find some details below.
In arm-eabi cortex-m55 hard, after: | commit gcc-16-5627-g4e7213aa081f | Author: Tomasz Kamiński tkaminsk@redhat.com | Date: Wed Nov 26 14:28:39 2025 +0100 | | libstdc++: Fix typo in operator used in __pack_ints [PR122864] | | `<=` was used instead of `<<`, this was detected by clang warning. | | PR libstdc++/122864 | ... 5 lines of the commit log omitted.
Produces 1 regression: | | regressions.sum: | Running libstdc++:libstdc++-dg/conformance.exp ... | FAIL: std/time/hash.cc -std=gnu++26 execution test
Used configuration : *CI config* tcwg_gnu_embed_check_gcc arm-eabi -mthumb -march=armv8.1-m.main+mve.fp+fp.dp -mtune=cortex-m55 -mfloat-abi=hard -mfpu=auto *configure and test flags:* --target arm-eabi --disable-multilib --with-mode=thumb --with-arch=armv8.1-m.main+mve.fp+fp.dp --with-float=hard --target_board=-mthumb/-march=armv8.1-m.main+mve.fp+fp.dp/-mtune=cortex-m55/-mfloat-abi=hard/-mfpu=auto qemu-cpu=cortex-m55
We track this bug report under https://linaro.atlassian.net/browse/GNU-1806. 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_m55_hard_ea... 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_m55_hard_ea... The list of [ignored] baseline and flaky failures are in
https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m55_hard_ea...
Current build : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m55_hard_ea... Reference build : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m55_hard_ea...
Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sh...
Full commit : See in git+ssh://linaroci@gcc.gnu.org/git/gcc.git