On Thu, 2 Jul 2026 at 23:45, <[email protected]> wrote: > > Dear contributor, > > Our automatic CI has detected problems related to your patch(es). Please find > some details below. > > In arm-eabi cortex-m33 hard, after: > | commit gcc-17-1905-g70e630b6d29b > | Author: Jonathan Wakely <[email protected]> > | Date: Thu Jun 25 12:59:04 2026 +0100 > | > | libstdc++: Update feature test macros and tests for C++29 > | > | With r17-1595-g0c5c6249a2e9a7 G++ supports -std=c++29 so update our > | feature test macro generation and testsuite to know about it. > | > | ... 19 lines of the commit log omitted. > > Produces 5 regressions 5 fixes: > | > | regressions.sum: > | Running libstdc++:libstdc++-dg/conformance.exp ... > | FAIL: 19_diagnostics/stacktrace/entry.cc -std=gnu++29 execution test > | FAIL: 19_diagnostics/stacktrace/output.cc -std=gnu++29 execution test > | FAIL: 19_diagnostics/stacktrace/stacktrace.cc -std=gnu++29 execution test > | FAIL: 27_io/print/2.cc -std=gnu++29 (test for excess errors) > | ... and 1 more > | > | fixes.sum: > | Running libstdc++:libstdc++-dg/conformance.exp ... > | FAIL: 19_diagnostics/stacktrace/entry.cc -std=gnu++26 execution test > | FAIL: 19_diagnostics/stacktrace/output.cc -std=gnu++26 execution test > | FAIL: 19_diagnostics/stacktrace/stacktrace.cc -std=gnu++26 execution test > | FAIL: 27_io/print/2.cc -std=gnu++26 (test for excess errors) > | ... and 1 more > > Used configuration : > *CI config* tcwg_gnu_embed_check_gcc arm-eabi -mthumb > -march=armv8-m.main+dsp+fp -mtune=cortex-m33 -mfloat-abi=hard -mfpu=auto > *configure and test flags:* --target arm-eabi --disable-multilib > --with-mode=thumb --with-cpu=cortex-m33 --with-float=hard > --target_board=-mthumb/-march=armv8-m.main+dsp+fp/-mtune=cortex-m33/-mfloat-abi=hard/-mfpu=auto > qemu-cpu=cortex-m33 > > We track this bug report under https://linaro.atlassian.net/browse/GNU-1942. > (Require Linaro login) Please let us know if you have a fix.
This isn't really a regression, it's because the tests switched from being run with -std=gnu++26 to -std=gnu++29, but they still FAIL the same way. > > 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 > * > http://54.172.246.49:9090/jobs/tcwg_gnu_embed_check_gcc--master-thumb_m33_hard_eabi-build/builds/10099/archive/artifacts/00-sumfiles/ > The full lists of regressions and improvements as well as configure and make > commands are in > * > http://54.172.246.49:9090/jobs/tcwg_gnu_embed_check_gcc--master-thumb_m33_hard_eabi-build/builds/10099/archive/artifacts/notify/ > The list of [ignored] baseline and flaky failures are in > * > http://54.172.246.49:9090/jobs/tcwg_gnu_embed_check_gcc--master-thumb_m33_hard_eabi-build/builds/10099/archive/artifacts/sumfiles/xfails.xfail > > Current build : > http://54.172.246.49:9090/jobs/tcwg_gnu_embed_check_gcc--master-thumb_m33_hard_eabi-build/builds/10099/archive/artifacts/ > Reference build : > http://54.172.246.49:9090/jobs/tcwg_gnu_embed_check_gcc--master-thumb_m33_hard_eabi-build/builds/10098/archive/artifacts/ > > Instruction to reproduce the build : > https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/70e630b6d29b750173920d19bd87c3930b7be532/tcwg_gnu_embed_check_gcc/master-thumb_m33_hard_eabi/reproduction_instructions.txt > > Full commit : See in git+ssh://[email protected]/git/gcc.git
