Dear contributor,

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

In  arm-eabi thumb v8-a hard, after:
  | commit gcc-16-4081-g966cdec2b23
  | Author: Andrew Pinski <andrew.pinski@oss.qualcomm.com>
  | Date:   Fri Sep 19 20:58:31 2025 -0700
  | 
  |     gimple-fold/fab: Move ASSUME_ALIGNED handling to gimple-fold [PR121762]
  |     
  |     This is the next patch in the series of removing fab.
  |     This one is simplier than builtin_constant_p because the only
  |     time we want to simplify this builtin is at the final folding step.
  | ... 27 lines of the commit log omitted.

Produces 3 regressions:
  | 
  | regressions.sum:
  | Running gcc:gcc.dg/dg.exp ...
  | FAIL: gcc.dg/pr82929-2.c scan-tree-dump-times store-merging "Merging successful" 1
  | FAIL: gcc.dg/store_merging_19.c scan-tree-dump-times store-merging "Merging successful" 3
  | FAIL: gcc.dg/store_merging_7.c scan-tree-dump-times store-merging "Merging successful" 1

Used configuration :
 *CI config* tcwg_gnu_embed_check_gcc arm-eabi -mthumb -march=armv8-a+simd -mfpu=auto -mfloat-abi=hard
 *configure and test flags:* --target arm-eabi --disable-multilib --with-mode=thumb --with-arch=armv8-a+simd --with-fpu=crypto-neon-fp-armv8 --with-float=hard --target_board=-mthumb/-march=armv8-a+simd/-mfpu=auto/-mfloat-abi=hard qemu_cpu=any

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.

-----------------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
 * https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_v8a_hard_eabi-build/949/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_embed_check_gcc--master-thumb_v8a_hard_eabi-build/949/artifact/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_v8a_hard_eabi-build/949/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_v8a_hard_eabi-build/949/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_v8a_hard_eabi-build/948/artifact/artifacts

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/966cdec2b23b8049c263e2239a3da38937ae01d2/tcwg_gnu_embed_check_gcc/master-thumb_v8a_hard_eabi/reproduction_instructions.txt

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