[Linaro-TCWG-CI] gcc-16-5042-g470411f44f51: 1 regression on arm

ci_notify--- via Gcc-regression <[email protected]>
Newsgroups gmane.comp.gcc.regression
Message-ID <[email protected]>
Dear contributor,

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

In  master-arm, after:
  | commit gcc-16-5042-g470411f44f51
  | Author: Artemiy Volkov <[email protected]>
  | Date:   Sat Nov 1 17:17:15 2025 +0000
  | 
  |     forwprop: allow subvectors in simplify_vector_constructor ()
  |     
  |     This is an attempt to fix
  |     https://gcc.gnu.org/pipermail/gcc-patches/2025-October/697879.html in the
  |     middle-end; the motivation in that patch was to teach gcc to compile:
  | ... 50 lines of the commit log omitted.

Produces 1 regression:
  | 
  | regressions.sum:
  | Running gcc:gcc.dg/tree-ssa/tree-ssa.exp ...
  | FAIL: gcc.dg/tree-ssa/forwprop-43.c scan-tree-dump-times forwprop1 "VEC_PERM_EXPR" 10

Used configuration :
 *CI config* tcwg_gnu_cross_check_gcc master-arm
 *configure and test flags:* --target arm-linux-gnueabihf 

We track this bug report under https://linaro.atlassian.net/browse/GNU-1747. Please let us know if you have a fix.

If you have any questions regarding this report, please ask on [email protected] mailing list.

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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_cross_check_gcc--master-arm-build/2423/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_cross_check_gcc--master-arm-build/2423/artifact/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-arm-build/2423/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-arm-build/2423/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-arm-build/2422/artifact/artifacts

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/470411f44f51d9ef85bfcf3a8f9cb25344dd243f/tcwg_gnu_cross_check_gcc/master-arm/reproduction_instructions.txt

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