Re: [Linaro-TCWG-CI] gcc-16-1247-gbdae7824cd9: 7 regressions on arm

On Fri, 6 Jun 2025 at 18:17, <[email protected]> wrote:
>
> Dear contributor,
>
> Our automatic CI has detected problems related to your patch(es). Please find some details below.
>
> In gcc_check master-arm, after:
>   | commit gcc-16-1247-gbdae7824cd9
>   | Author: Jonathan Wakely <[email protected]>
>   | Date:   Wed Jun 4 15:53:20 2025 +0100
>   |
>   |     libstdc++: Optimize std::counting_semaphore for futex path
>   |
>   |     Rename __semaphore_base to __semaphore_impl, because it's not used as a
>   |     base class. Replace the three identical lambda expressions with a named
>   |     class, __semaphore_impl::_Available, which stores the most recent
>   | ... 27 lines of the commit log omitted.
>
> Produces 7 regressions:
>   |
>   | regressions.sum:
>   | Running g++:g++.dg/modules/modules.exp ...
>   | FAIL: g++.dg/modules/xtreme-header-2_b.C -std=c++26 (test for excess errors)
>   | FAIL: g++.dg/modules/xtreme-header-5_b.C -std=c++26 (test for excess errors)
>   | FAIL: g++.dg/modules/xtreme-header-6_b.C -std=c++26 (test for excess errors)
>   | FAIL: g++.dg/modules/xtreme-header-7_b.C -std=c++26 (test for excess errors)
>   | ... and 3 more
>
> Used configuration :
>  *CI config* tcwg_gcc_check master-arm
>  *configure and test flags:* none, autodetected on armv8l-unknown-linux-gnueabihf
>
> We track this bug report under https://linaro.atlassian.net/browse/GNU-1598. Please let us know if you have a fix.

It should be fixed at  r16-1270-g7407891a3d7c17


>
> If you have any questions regarding this report, please ask on [email protected] mailing list.
>
> -----------------8<--------------------------8<--------------------------8<--------------------------
>
> 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_gcc_check--master-arm-build/3946/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_gcc_check--master-arm-build/3946/artifact/artifacts/notify/
> The list of [ignored] baseline and flaky failures are in
>  * https://ci.linaro.org/job/tcwg_gcc_check--master-arm-build/3946/artifact/artifacts/sumfiles/xfails.xfail
>
> Current build   : https://ci.linaro.org/job/tcwg_gcc_check--master-arm-build/3946/artifact/artifacts
> Reference build : https://ci.linaro.org/job/tcwg_gcc_check--master-arm-build/3945/artifact/artifacts
>
> Instruction to reproduce the build : https://gitlab.com/Linaro/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/bdae7824cd9a9d27665bf1b82f60a761a9745a6a/tcwg_gcc_check/master-arm/reproduction_instructions.txt
>
> Full commit : See in git+ssh://[email protected]/git/gcc.git