Re: [Linaro-TCWG-CI] gcc-17-2353-gee27c516c7b6: 1 regression on aarch64
Dylan Rees via Gcc-regression <[email protected]> Tue, 28 Jul 2026 10:03:31 +0000
| Newsgroups | gmane.comp.gcc.regression,gmane.linux.linaro.toolchain |
|---|---|
| Message-ID | <[email protected]> |
On Sun, Jul 19, 2026 at 07:12:50PM +0000, [email protected] wrote: > Dear contributor, > > Our automatic CI has detected problems related to your patch(es). Please = find some details below. > > In aarch64 cross, after: > | commit gcc-17-2353-gee27c516c7b6 > | Author: Dylan Rees <[email protected]> > | Date: Mon Jul 13 09:57:17 2026 +0000 > | > | aarch64: Improve simd highpart builtin folding > | > | The current helper function folding calls to lowpart builtins int= o > | highpart builtins calls does not handle cases where we have a 64b > | wide uniform vector, which can be extended to 128b, used for > | ... 15 lines of the commit log omitted. > > Produces 1 regression: > | > | regressions.sum: > | Running gcc:gcc.target/aarch64/simd/simd.exp ... > | FAIL: gcc.target/aarch64/simd/fold_to_highpart_7.c check-function-bod= ies foo > > Used configuration : > *CI config* tcwg_gnu_cross_check_gcc aarch64-linux-gnu cross > *configure and test flags:* --target aarch64-linux-gnu --disable-multili= b --enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419 --with-arch= =3Darmv8-a > > We track this bug report under https://linaro.atlassian.net/browse/GNU-19= 74. (Require Linaro login) Please let us know if you have a fix. > > If you have any questions regarding this report, please ask on linaro-too= [email protected] mailing list. > > -----------------8<--------------------------8<--------------------------= 8<-------------------------- > > 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-aarch6= 4-build/builds/10236/archive/artifacts/00-sumfiles/ > The full lists of regressions and improvements as well as configure and m= ake commands are in > * http://54.172.246.49:9090/jobs/tcwg_gnu_cross_check_gcc--master-aarch6= 4-build/builds/10236/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-aarch6= 4-build/builds/10236/archive/artifacts/sumfiles/xfails.xfail > > Current build : http://54.172.246.49:9090/jobs/tcwg_gnu_cross_check_gcc= --master-aarch64-build/builds/10236/archive/artifacts/ > Reference build : http://54.172.246.49:9090/jobs/tcwg_gnu_cross_check_gcc= --master-aarch64-build/builds/10235/archive/artifacts/ > > Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci= /interesting-commits/-/raw/master/gcc/sha1/ee27c516c7b6f0ee364b165aed0c3510= 1da8e77a/tcwg_gnu_cross_check_gcc/master-aarch64/reproduction_instructions.= txt > > Full commit : See in git+ssh://[email protected]/git/gcc.git This should be fixed by: https://gcc.gnu.org/pipermail/gcc-patches/2026-Jul= y/725423.html Issue is with 'ssa_uniform_vector_p' which does not handle vector duplicate= s where the splat is the RHS of an SSA definition. Best, Dylan IMPORTANT NOTICE: The contents of this email and any attachments are confid= ential and may also be privileged. If you are not the intended recipient, p= lease notify the sender immediately and do not disclose the contents to any= other person, use it for any purpose, or store or copy the information in = any medium. Thank you.