Dear contributor,

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

In bootstrap_check master-aarch64-check_bootstrap, after:
  | commit gcc-16-3997-ga77146f01563
  | Author: Nathan Myers <ncm@cantrip.org>
  | Date:   Thu Jul 3 17:15:40 2025 -0400
  | 
  |     libstdc++: Add NTTP bind_front, -back, not_fn (P2714) [PR119744]
  |     
  |     Add non-type template parameter function-object/-pointer argument
  |     versions of bind_front, bind_back, and not_fn.
  |     
  | ... 25 lines of the commit log omitted.

Produces 8 regressions:
  | 
  | regressions.sum:
  | Running g++:g++.dg/modules/modules.exp ...
  | FAIL: g++.dg/modules/xtreme-header-2_b.C -std=c++26 (internal compiler error: canonical types differ for identical types 'auto' and 'auto')
  | FAIL: g++.dg/modules/xtreme-header-2_b.C -std=c++26 (test for excess errors)
  | FAIL: g++.dg/modules/xtreme-header_b.C -std=c++26 (internal compiler error: canonical types differ for identical types 'auto' and 'auto')
  | FAIL: g++.dg/modules/xtreme-header_b.C -std=c++26 (test for excess errors)
  | ... and 5 more

Used configuration :
 *CI config* tcwg_bootstrap_check master-aarch64-check_bootstrap
 *configure and test flags:* none, autodetected on aarch64-unknown-linux-gnu

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_bootstrap_check--master-aarch64-check_bootstrap-build/1376/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_bootstrap_check--master-aarch64-check_bootstrap-build/1376/artifact/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * https://ci.linaro.org/job/tcwg_bootstrap_check--master-aarch64-check_bootstrap-build/1376/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_bootstrap_check--master-aarch64-check_bootstrap-build/1376/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_bootstrap_check--master-aarch64-check_bootstrap-build/1375/artifact/artifacts

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/a77146f01563b5df19e70061dc237178b5532aa9/tcwg_bootstrap_check/master-aarch64-check_bootstrap/reproduction_instructions.txt

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