Dear contributor,

Our automatic CI has detected problems related to your patch(es). Please find some details below.

In  master-arm, after:
  | commit gcc-16-3223-gcdd015c4ddbb
  | Author: Jakub Jelinek <jakub@redhat.com>
  | Date:   Fri Aug 15 22:31:27 2025 +0200
  | 
  |     c++: Warn on #undef/#define of remaining cpp.predefined macros [PR120778]
  |     
  |     We already warn on #undef or pedwarn on #define (but not on #define
  |     after #undef) of some builtin macros mentioned in cpp.predefined.
  |     
  | ... 52 lines of the commit log omitted.

Produces 9 regressions:
  | 
  | regressions.sum:
  | Running acats:chapter cxa ...
  | FAIL: cxai034 
  | Running g++:g++.dg/dg.exp ...
  | FAIL: g++.dg/DRs/dr2581-1.C -std=c++23  (test for warnings, line 16)
  | FAIL: g++.dg/DRs/dr2581-1.C -std=c++23  (test for warnings, line 19)
  | ... and 6 more

Used configuration :
 *CI config* tcwg_gnu_native_check_gcc 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-692. Please let us know if you have a fix.

If you have any questions regarding this report, please ask on linaro-toolchain@lists.linaro.org mailing list.

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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_gnu_native_check_gcc--master-arm-build/2397/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_gnu_native_check_gcc--master-arm-build/2397/artifact/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * https://ci.linaro.org/job/tcwg_gnu_native_check_gcc--master-arm-build/2397/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gnu_native_check_gcc--master-arm-build/2397/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gnu_native_check_gcc--master-arm-build/2394/artifact/artifacts

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/cdd015c4ddbb1ae71eea1e44654cee5ca29a6c64/tcwg_gnu_native_check_gcc/master-arm/reproduction_instructions.txt

Full commit : See in git+ssh://linaroci@gcc.gnu.org/git/gcc.git