[Linaro-TCWG-CI] gcc-16-5491-g9dff0355c75d: 5 regressions on aarch64

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 gcc_check master-aarch64, after:
  | commit gcc-16-5491-g9dff0355c75d
  | Author: Richard Biener <[email protected]>
  | Date:   Fri Nov 21 12:14:46 2025 +0100
  | 
  |     Fix OMP SIMD clone mask register and query
  |     
  |     The following removes the confusion around num_mask_args that was
  |     added to properly "guess" the number of mask elements in a AVX512
  |     mask that's just represented as int.  The actual mistake lies in
  | ... 21 lines of the commit log omitted.

Produces 5 regressions:
  | 
  | regressions.sum:
  | Running gcc:gcc.dg/vect/vect.exp ...
  | FAIL: gcc.dg/vect/vect-simd-clone-23.c (test for excess errors)
  | FAIL: gcc.dg/vect/vect-simd-clone-23.c -flto -ffat-lto-objects (test for excess errors)
  | Running gcc:gcc.target/aarch64/aarch64.exp ...
  | FAIL: gcc.target/aarch64/vect-simd-clone-4.c (internal compiler error: Segmentation fault)
  | ... and 2 more

Used configuration :
 *CI config* tcwg_gcc_check master-aarch64
 *configure and test flags:* none, autodetected on aarch64-unknown-linux-gnu

We track this bug report under https://linaro.atlassian.net/browse/GNU-1758. 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_gcc_check--master-aarch64-build/4409/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_gcc_check--master-aarch64-build/4409/artifact/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * https://ci.linaro.org/job/tcwg_gcc_check--master-aarch64-build/4409/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gcc_check--master-aarch64-build/4409/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gcc_check--master-aarch64-build/4402/artifact/artifacts

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/9dff0355c75d70d2a7583b626426599ee054406a/tcwg_gcc_check/master-aarch64/reproduction_instructions.txt

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