[Linaro-TCWG-CI] gcc-17-2413-ge46d96d20bbf: 1 regression on arm

ci_notify--- via Gcc-regression <[email protected]> Fri, 17 Jul 2026 23:47:02 +0000 (UTC)
Newsgroups gmane.comp.gcc.regression
Message-ID <1876429267.80925.1784332023180@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-17-2413-ge46d96d20bbf
  | Author: Roger Sayle <[email protected]>
  | Date:   Wed Jul 15 12:26:16 2026 +0100
  | 
  |     PR middle-end/123236: Simplify (int)((long long)x >> 4)
  |     
  |     This patch addresses a code quality regression on x86_64 related to
  |     PR 123236.  That original PR (and the related PR 101266) concern tree
  |     level optimizations, where this problem should also be fixed, but it
  | ... 41 lines of the commit log omitted.

Produces 1 regression:
  | 
  | regressions.sum:
  | Running gcc:gcc.target/arm/arm.exp ...
  | FAIL: gcc.target/arm/pr42879.c scan-assembler lsls

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-1973. (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/10229/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/10229/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/10229/archive/artifacts/sumfiles/xfails.xfail

Current build   : http://54.172.246.49:9090/jobs/tcwg_gnu_cross_check_gcc--master-arm-build/builds/10229/archive/artifacts/
Reference build : http://54.172.246.49:9090/jobs/tcwg_gnu_cross_check_gcc--master-arm-build/builds/10228/archive/artifacts/

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/e46d96d20bbfa786d30c9371631da00939845f05/tcwg_gnu_cross_check_gcc/master-arm/reproduction_instructions.txt

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