[Linaro-TCWG-CI] gcc-16-7353-gbd67b5a8c901: 3 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  master-aarch64, after:
  | commit gcc-16-7353-gbd67b5a8c901
  | Author: Robin Dapp <[email protected]>
  | Date:   Tue Feb 3 21:24:33 2026 +0100
  | 
  |     math-opts: Only build FMA when use is in addends. [PR123940]
  |     
  |     When looking for an FMA opportunity we can find a multiplication use in an
  |     else operand:
  |     
  | ... 22 lines of the commit log omitted.

Produces 3 regressions:
  | 
  | regressions.sum:
  | Running gcc:gcc.target/aarch64/sve/aarch64-sve.exp ...
  | FAIL: gcc.target/aarch64/sve/pr123898.c (internal compiler error: in convert_mult_to_fma, at tree-ssa-math-opts.cc:3649)
  | FAIL: gcc.target/aarch64/sve/pr123898.c (test for excess errors)
  | FAIL: gcc.target/aarch64/sve/pr123898.c scan-tree-dump-times widening_mul ".FMA" 1

Used configuration :
 *CI config* tcwg_gnu_cross_check_gcc master-aarch64
 *configure and test flags:* --target aarch64-linux-gnu 

We track this bug report under https://linaro.atlassian.net/browse/GNU-1832. 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-aarch64-build/2580/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-aarch64-build/2580/artifact/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-aarch64-build/2580/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-aarch64-build/2580/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-aarch64-build/2579/artifact/artifacts

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/bd67b5a8c90194f7499981bbbc247fd45f8de6b9/tcwg_gnu_cross_check_gcc/master-aarch64/reproduction_instructions.txt

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