Dear contributor, our automatic CI has detected problems related to your 
patch(es).  Please find some details below.  If you have any questions, please 
follow up on linaro-toolch...@lists.linaro.org mailing list, Libera's 
#linaro-tcwg channel, or ping your favourite Linaro toolchain developer on the 
usual project channel.

We appreciate that it might be difficult to find the necessary logs or 
reproduce the issue locally. If you can't get what you need from our CI within 
minutes, let us know and we will be happy to help.

We track this report status in https://linaro.atlassian.net/browse/GNU-1291 , 
please let us know if you are looking at the problem and/or when you have a fix.

In gcc_check master-arm after:

  | commit gcc-15-2171-g37c4703ce847
  | Author: Andi Kleen <a...@linux.intel.com>
  | Date:   Tue Jan 23 23:54:56 2024 -0800
  | 
  |     Add tests for C/C++ musttail attributes
  |     
  |     Some adopted from the existing C musttail plugin tests.
  |     Also extends the ability to query the sibcall capabilities of the
  |     target.
  |     
  |     gcc/testsuite/ChangeLog:
  | ... 16 lines of the commit log omitted.

FAIL: 4 regressions

regressions.sum:
                === g++ tests ===

Running g++:g++.dg/dg.exp ...
FAIL: c-c++-common/musttail12.c -std=c++14 (test for excess errors)
FAIL: c-c++-common/musttail12.c -std=c++17 (test for excess errors)
FAIL: c-c++-common/musttail12.c -std=c++20 (test for excess errors)
FAIL: g++.dg/musttail6.C (test for excess errors)


You can find the failure logs in *.log.1.xz files in
 - 
https://ci.linaro.org/job/tcwg_gcc_check--master-arm-build/2433/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/2433/artifact/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 - 
https://ci.linaro.org/job/tcwg_gcc_check--master-arm-build/2433/artifact/artifacts/sumfiles/xfails.xfail

The configuration of this build is:
CI config tcwg_gcc_check master-arm

-----------------8<--------------------------8<--------------------------8<--------------------------
The information below can be used to reproduce a debug environment:

Current build   : 
https://ci.linaro.org/job/tcwg_gcc_check--master-arm-build/2433/artifact/artifacts
Reference build : 
https://ci.linaro.org/job/tcwg_gcc_check--master-arm-build/2430/artifact/artifacts

Reproduce last good and first bad builds: 
https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/37c4703ce84722b9c24db3e8e6d57ab6d3a7b5eb/tcwg_gcc_check/master-arm/reproduction_instructions.txt

Full commit : 
https://github.com/gcc-mirror/gcc/commit/37c4703ce84722b9c24db3e8e6d57ab6d3a7b5eb

List of configurations that regressed due to this commit :
* tcwg_gcc_check
** master-arm
*** FAIL: 4 regressions
*** 
https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/37c4703ce84722b9c24db3e8e6d57ab6d3a7b5eb/tcwg_gcc_check/master-arm/details.txt
*** 
https://ci.linaro.org/job/tcwg_gcc_check--master-arm-build/2433/artifact/artifacts

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