Dear contributor,

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

In  aarch64 cross, after:
  | commit gcc-17-1974-g0895e430b5e5
  | Author: Roger Sayle <[email protected]>
  | Date:   Mon Jun 29 14:07:08 2026 +0100
  | 
  |     PR target/94871: Simplify (not (eq x y)) as (ne x y) for vectors.
  |     
  |     This patch is my proposed fix for PR target/94871, a missed optimization
  |     for simplifying vector comparisons in the RTL optimizers (combine) that
  |     includes both middle-end and i386 backend changes.
  | ... 84 lines of the commit log omitted.

Produces 7 regressions:
  | 
  | regressions.sum:
  | Running gcc:gcc.target/aarch64/aarch64.exp ...
  | FAIL: gcc.target/aarch64/mvn-cmeq0-1.c scan-assembler-not \\tcmeq\\t
  | FAIL: gcc.target/aarch64/mvn-cmeq0-1.c scan-assembler-not \\tnot\\t
  | FAIL: gcc.target/aarch64/mvn-cmeq0-1.c scan-assembler-times \\tcmtst\\t 1
  | FAIL: gcc.target/aarch64/vect-early-break-cbranch_4.c check-function-bodies 
f2
  | ... and 4 more

Used configuration :
 *CI config* tcwg_gnu_cross_check_gcc aarch64-linux-gnu cross
 *configure and test flags:* --target aarch64-linux-gnu --disable-multilib 
--enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419 
--with-arch=armv8-a

We track this bug report under https://linaro.atlassian.net/browse/GNU-1944. 
(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_gnu_cross_check_gcc--master-aarch64-build/builds/10174/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_gnu_cross_check_gcc--master-aarch64-build/builds/10174/archive/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * 
http://54.172.246.49:9090/jobs/tcwg_gnu_cross_check_gcc--master-aarch64-build/builds/10174/archive/artifacts/sumfiles/xfails.xfail

Current build   : 
http://54.172.246.49:9090/jobs/tcwg_gnu_cross_check_gcc--master-aarch64-build/builds/10174/archive/artifacts/
Reference build : 
http://54.172.246.49:9090/jobs/tcwg_gnu_cross_check_gcc--master-aarch64-build/builds/10173/archive/artifacts/

Instruction to reproduce the build : 
https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/0895e430b5e59e3ee18c4763c493ee05a0c363e8/tcwg_gnu_cross_check_gcc/master-aarch64/reproduction_instructions.txt

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

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