Dear contributor,

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

In  armv8l-unknown-linux-gnueabihf native, after:
  | commit gcc-17-459-gb20f5c7760e
  | Author: Naveen <[email protected]>
  | Date:   Mon May 11 21:08:11 2026 -0700
  | 
  |     tree-optimization: Fold SAT_ADD at gimple level
  |     
  |     Extend scalar SAT_ADD constant folding to recognize cases where one 
operand is
  |     zero. It allows SAT_ADD expressions with constant operands to fold away 
early.
  |     The change improves optimization opportunities and avoids emitting 
unnecessary
  | ... 15 lines of the commit log omitted.

Produces 2 regressions:
  | 
  | regressions.sum:
  | Running gcc:gcc.dg/dg.exp ...
  | FAIL: gcc.dg/pr123286.c (test for excess errors)
  | UNRESOLVED: gcc.dg/pr123286.c scan-tree-dump-not optimized "\\.SAT_ADD"

Used configuration :
 *CI config* tcwg_gcc_check armv8l-unknown-linux-gnueabihf
 *configure and test flags:* none, autodetected on 
armv8l-unknown-linux-gnueabihf--disable-multilib --with-float=hard 
--with-mode=thumb --with-tune=cortex-a9 --with-arch=armv7-a 
--with-fpu=neon-fp-armv8

We track this bug report under https://linaro.atlassian.net/browse/GNU-1899. 
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_gcc_check--master-arm-build/builds/10198/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_gcc_check--master-arm-build/builds/10198/archive/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * 
http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10198/archive/artifacts/sumfiles/xfails.xfail

Current build   : 
http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10198/archive/artifacts/
Reference build : 
http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10197/archive/artifacts/

Instruction to reproduce the build : 
https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/b20f5c7760e4c5032e8f9d84145d3be7d0238029/tcwg_gcc_check/master-arm/reproduction_instructions.txt

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

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