[Linaro-TCWG-CI] gcc-17-1528-g6bbe931ea0e8: 3 regressions on arm

[ci_notify@linaro.org]

Dear contributor,

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

In  armv8l-unknown-linux-gnueabihf native, after:
  | commit gcc-17-1528-g6bbe931ea0e8
  | Author: Kyrylo Tkachov <ktkachov@nvidia.com>
  | Date:   Fri Jun 12 00:00:00 2026 +0000
  | 
  |     match.pd: fold (0/1) * -(0/1) into -((0/1) & (0/1))
  |     
  |     For operands known to be in the range [0, 1], multiplying a 0/1 value by a
  |     negated 0/1 value is the negation of their bitwise AND:
  |     
  | ... 26 lines of the commit log omitted.

Produces 3 regressions:
  | 
  | regressions.sum:
  | Running g++:g++.dg/dg.exp ...
  | FAIL: g++.dg/tree-ssa/mult-negate-zeroone-1.C -std=gnu++20  scan-tree-dump-not optimized " * "
  | FAIL: g++.dg/tree-ssa/mult-negate-zeroone-1.C -std=gnu++26  scan-tree-dump-not optimized " * "
  | FAIL: g++.dg/tree-ssa/mult-negate-zeroone-1.C -std=gnu++98  scan-tree-dump-not optimized " * "

Used configuration :
 *CI config* tcwg_gcc_check armv8l-unknown-linux-gnueabihf
 *configure and test flags:* none, autodetected on armv8l-unknown-linux-gnueabihf--disable-multilib --with-float=hard --with-mode=thumb --with-tune=cortex-a9 --with-arch=armv7-a --with-fpu=neon-fp-armv8

We track this bug report under https://linaro.atlassian.net/browse/GNU-1926. (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.

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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_gcc_check--master-arm-build/builds/10330/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_gcc_check--master-arm-build/builds/10330/archive/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10330/archive/artifacts/sumfiles/xfails.xfail

Current build   : http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10330/archive/artifacts/
Reference build : http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10328/archive/artifacts/

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/6bbe931ea0e8f412c81fed8a3df4a07df97821f4/tcwg_gcc_check/master-arm/reproduction_instructions.txt

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