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-17-839-g77b2eaf09c77
  | Author: oltolm <[email protected]>
  | Date:   Sun May 24 12:57:49 2026 +0200
  | 
  |     x86: fix under-aligned indirect AVX argument/return stack slots on 
win64 [PR54412]
  |     
  |     Fix x86 caller/callee handling for over-aligned indirect 
arguments/returns
  |     
  |     On x86_64-w64-mingw32, TARGET_SEH limits MAX_SUPPORTED_STACK_ALIGNMENT
  | ... 43 lines of the commit log omitted.

Produces 3 regressions:
  | 
  | regressions.sum:
  | Running gcc:gcc.target/aarch64/sve/pcs/aarch64-sve-pcs.exp ...
  | FAIL: gcc.target/aarch64/sve/pcs/struct_3_128.c -march=armv8.2-a+sve 
-fno-stack-protector  check-function-bodies test_pst_uniform4
  | FAIL: gcc.target/aarch64/sve/pcs/struct_3_256.c -march=armv8.2-a+sve 
-fno-stack-protector  check-function-bodies test_pst_uniform4
  | FAIL: gcc.target/aarch64/sve/pcs/struct_3_512.c -march=armv8.2-a+sve 
-fno-stack-protector  check-function-bodies test_pst_uniform4

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-1914. 
(Require Linaro login) Please let us know if you have a fix.

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_bootstrap_check--master-aarch64-check_bootstrap-build/builds/10087/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_bootstrap_check--master-aarch64-check_bootstrap-build/builds/10087/archive/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * 
http://54.172.246.49:9090/jobs/tcwg_bootstrap_check--master-aarch64-check_bootstrap-build/builds/10087/archive/artifacts/sumfiles/xfails.xfail

Current build   : 
http://54.172.246.49:9090/jobs/tcwg_bootstrap_check--master-aarch64-check_bootstrap-build/builds/10087/archive/artifacts/
Reference build : 
http://54.172.246.49:9090/jobs/tcwg_bootstrap_check--master-aarch64-check_bootstrap-build/builds/10086/archive/artifacts/

Instruction to reproduce the build : 
https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/77b2eaf09c77bf2dddcb8c35ee8bc9cc99e2f93c/tcwg_bootstrap_check/master-aarch64-check_bootstrap/reproduction_instructions.txt

Full commit : See in git+ssh://[email protected]/git/gcc.git

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