Dear contributor,

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

In simplebootstrap_build master-arm-bootstrap, after:
  | commit gcc-17-3758-g0d5fe4ed0540
  | Author: Jovan Dmitrovic <jovan.dmitrovic@htecgroup.com>
  | Date:   Sat Aug 29 12:16:20 2026 -0600
  | 
  |     [PATCH v4 3/3] ivopts: Adjust reg pressure estimate for spilling invariants compared to iv cands.
  |     
  |     Currently, ivopt calculates register pressure cost so that the cost of
  |     spilling induction variables is exactly double the cost of spilling
  |     loop invariants, which is not exactly right.
  | ... 17 lines of the commit log omitted.

Produces Failure:
  | Results changed to
  | # reset_artifacts:
  | -10
  | # true:
  | 0
  | # build_abe bootstrap:
  | # FAILED
  | # First few build errors in logs:
  | # 00:20:37 /home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/snapshots/gcc.git~master/gcc/tree-ssa-loop-ivopts.cc:6109:73: error: statement has no effect [-Werror=unused-value]
  | # 00:21:09 make[3]: *** [Makefile:1219: tree-ssa-loop-ivopts.o] Error 1
  | # 00:21:09 make[2]: *** [Makefile:5182: all-stage2-gcc] Error 2
  | # 00:21:09 make[1]: *** [Makefile:26490: stage2-bubble] Error 2
  | # 00:21:09 make: *** [Makefile:1140: all] Error 2
  | 
  | From
  | # reset_artifacts:
  | -10
  | # true:
  | 0
  | # build_abe bootstrap:
  | 1

Used configuration :
 *CI config* tcwg_simplebootstrap_build master-arm-bootstrap
 *configure and test flags:* none, autodetected on armv8l-unknown-linux-gnueabihf

We track this bug report under https://linaro.atlassian.net/browse/GNU-2012. (Require Linaro login) 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
 * http://54.172.246.49:9090/jobs/tcwg_simplebootstrap_build--master-arm-bootstrap-build/builds/10367/archive/artifacts/
The full lists of regressions and improvements as well as configure and make commands are in
 * http://54.172.246.49:9090/jobs/tcwg_simplebootstrap_build--master-arm-bootstrap-build/builds/10367/archive/artifacts/notify/

Current build   : http://54.172.246.49:9090/jobs/tcwg_simplebootstrap_build--master-arm-bootstrap-build/builds/10367/archive/artifacts/
Reference build : http://54.172.246.49:9090/jobs/tcwg_simplebootstrap_build--master-arm-bootstrap-build/builds/10366/archive/artifacts/

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/0d5fe4ed0540cca156754a905387c3420465b210/tcwg_simplebootstrap_build/master-arm-bootstrap/reproduction_instructions.txt

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