Re: [Linaro-TCWG-CI] gcc-16-7593-g39edc2aea24f: 4 regressions on aarch64

Jonathan Wakely via Gcc-regression <[email protected]>
Newsgroups gmane.comp.gcc.regression,gmane.linux.linaro.toolchain
Message-ID <CAH6eHdQar616AQP6fgSX+qbGY9g6aGG_xTSo1y8rhfwiOkpQBA@mail.gmail.com>
On Thu, 19 Feb 2026 at 23:09, <[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-aarch64, after:
>   | commit gcc-16-7593-g39edc2aea24f
>   | Author: Jonathan Wakely <[email protected]>
>   | Date:   Tue Feb 17 12:48:51 2026 +0000
>   |
>   |     libstdc++: Use global variables for default/max std in libstdc++.exp
>   |
>   |     This simplifies the v3-minimum-std procedure slightly, but the main
>   |     advantage is making v3_modules_std depend on v3_max_std so that we don't
>   |     have to update two separate variables when new effective targets such as
>   | ... 12 lines of the commit log omitted.
>
> Produces 4 regressions:
>   |
>   | regressions.sum:
>   | Running libstdc++:libstdc++-dg/conformance.exp ...
>   | ERROR: tcl error code TCL WRONGARGS
>   | ERROR: tcl error sourcing libstdc++-dg/conformance.exp.
>   | UNRESOLVED: testcase libstdc++-dg/conformance.exp' aborted due to Tcl error
>   | ERROR: wrong # args: should be "v3-minimum-std test default_std max_std"
>
> Used configuration :
>  *CI config* tcwg_gcc_check master-aarch64
>  *configure and test flags:* none, autodetected on aarch64-unknown-linux-gnu
>
> We track this bug report under https://linaro.atlassian.net/browse/GNU-1842. Please let us know if you have a fix.

This should be fixed at  r16-7599-g8d8725bedd2f7c

>
> 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-aarch64-build/4763/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-aarch64-build/4763/artifact/artifacts/notify/
> The list of [ignored] baseline and flaky failures are in
>  * https://ci.linaro.org/job/tcwg_gcc_check--master-aarch64-build/4763/artifact/artifacts/sumfiles/xfails.xfail
>
> Current build   : https://ci.linaro.org/job/tcwg_gcc_check--master-aarch64-build/4763/artifact/artifacts
> Reference build : https://ci.linaro.org/job/tcwg_gcc_check--master-aarch64-build/4762/artifact/artifacts
>
> Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/39edc2aea24f9ac98c701803c9f2df881c715cc2/tcwg_gcc_check/master-aarch64/reproduction_instructions.txt
>
> Full commit : See in git+ssh://[email protected]/git/gcc.git
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