[Linaro-TCWG-CI] gcc-17-3281-gbbf1dfa9da86: 4 regressions on arm

ci_notify--- via Gcc-regression <[email protected]>
Newsgroups gmane.comp.gcc.regression
Message-ID <1051070725.112196.1786780467271@72d3563a6d18>
Dear contributor,

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

In  arm-linux-gnueabihf cross, after:
  | commit gcc-17-3281-gbbf1dfa9da86
  | Author: Kyrylo Tkachov <[email protected]>
  | Date:   Wed Jul 29 21:27:05 2026 +0200
  | 
  |     match.pd: combine a pair of vector comparisons against zero
  |     
  |     A lane of A | B is zero exactly when the corresponding lanes of A and of B
  |     are both zero, so
  |     
  | ... 40 lines of the commit log omitted.

Produces 4 regressions:
  | 
  | regressions.sum:
  | Running gcc:gcc.dg/tree-ssa/tree-ssa.exp ...
  | FAIL: gcc.dg/tree-ssa/vec-mask-zero-1.c scan-tree-dump-times optimized " != " 2
  | FAIL: gcc.dg/tree-ssa/vec-mask-zero-1.c scan-tree-dump-times optimized " & " 2
  | FAIL: gcc.dg/tree-ssa/vec-mask-zero-1.c scan-tree-dump-times optimized " == " 2
  | FAIL: gcc.dg/tree-ssa/vec-mask-zero-1.c scan-tree-dump-times optimized " \\| " 2

Used configuration :
 *CI config* tcwg_gnu_cross_check_gcc arm-linux-gnueabihf cross
 *configure and test flags:* --target arm-linux-gnueabihf --disable-multilib --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb --with-tune=cortex-a9 --with-arch=armv7-a

We track this bug report under https://linaro.atlassian.net/browse/GNU-1996. (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.

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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
 * http://54.172.246.49:9090/jobs/tcwg_gnu_cross_check_gcc--master-arm-build/builds/10307/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-arm-build/builds/10307/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-arm-build/builds/10307/archive/artifacts/sumfiles/xfails.xfail

Current build   : http://54.172.246.49:9090/jobs/tcwg_gnu_cross_check_gcc--master-arm-build/builds/10307/archive/artifacts/
Reference build : http://54.172.246.49:9090/jobs/tcwg_gnu_cross_check_gcc--master-arm-build/builds/10306/archive/artifacts/

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/bbf1dfa9da862caadf97ebf9a21b877b1553dbf4/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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