[Linaro-TCWG-CI] gcc-15-8035-g7ee31bc9276: 2 regressions on master-thumb_m23_soft_eabi

[Jonathan Wakely]

On Sun, 16 Mar 2025 at 13:16, <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-m23 soft, after:
>   | commit gcc-15-8035-g7ee31bc9276
>   | Author: Jonathan Wakely <jwakely@redhat.com>
>   | Date:   Thu Mar 13 13:34:55 2025 +0000
>   |
>   |     libstdc++: Implement <stdbit.h> for C++26 (P3370R1)
>   |
>   |     This is the first part of the P3370R1 proposal just approved by the
>   |     committee in Wrocław. This adds C++ equivalents of the functions added
>   |     to C23 by WG14 N3022.
>   | ... 16 lines of the commit log omitted.
>
> Produces 2 regressions:
>   |
>   | regressions.sum:
>   | Running libstdc++:libstdc++-dg/conformance.exp ...
>   | FAIL: 20_util/stdbit/1.cc -std=gnu++26 (test for excess errors)
>   | UNRESOLVED: 20_util/stdbit/1.cc -std=gnu++26 compilation failed to produce executable
>
> Used configuration :
>  *CI config* tcwg_gnu_embed_check_gcc arm-eabi -mthumb -march=armv8-m.base -mtune=cortex-m23 -mfloat-abi=soft -mfpu=auto
>  *configure and test flags:* --target arm-eabi --disable-multilib --with-mode=thumb --with-cpu=cortex-m23 --with-float=soft --target_board=-mthumb/-march=armv8-m.base/-mtune=cortex-m23/-mfloat-abi=soft/-mfpu=auto qemu_cpu=cortex-m33
>
> We track this bug report under https://linaro.atlassian.net/browse/GNU-1543. Please let us know if you have a fix.

All the errors are of the form:
error: 'ULLONG_MAX' was not declared in this scope
but the test includes <limits.h>.

So this target doesn't support long long? Or just doesn't define ULLONG_MAX?