Re: [Linaro-TCWG-CI] gcc-17-761-g44c5f9a37aa: 4 regressions on master-thumb_m55_hard_eabi
Fixed with https://gcc.gnu.org/pipermail/gcc-cvs/2026-May/454624.html
On Fri, May 29, 2026 at 2:26 AM ci_notify@linaro.org wrote:
Dear contributor,
Our automatic CI has detected problems related to your patch(es). Please find some details below.
In arm-eabi cortex-m55 hard, after: | commit gcc-17-761-g44c5f9a37aa | Author: Andrew Pinski andrew.pinski@oss.qualcomm.com | Date: Mon May 25 12:44:48 2026 -0700 | | match: Fix up `(smaller)a ==/!= (smaller) b` pattern for pointers [PR125453] | | While reviewing r17-632-g1c9808a71207eb, I missed that it was valid (in gimple) | to cast from a pointer to a smaller integral type. That meant with that | pattern we would get `ptr ^ ptr` which is invalid gimple. | ... 16 lines of the commit log omitted.
Produces 4 regressions: | | regressions.sum: | Running gcc:gcc.dg/torture/dg-torture.exp ... | FAIL: gcc.dg/torture/pr125453-1.c -O2 (test for excess errors) | FAIL: gcc.dg/torture/pr125453-1.c -O2 -flto -fno-use-linker-plugin -flto-partition=none (test for excess errors) | FAIL: gcc.dg/torture/pr125453-1.c -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions (test for excess errors) | FAIL: gcc.dg/torture/pr125453-1.c -O3 -g (test for excess errors)
Used configuration : *CI config* tcwg_gnu_embed_check_gcc arm-eabi -mthumb -march=armv8.1-m.main+mve.fp+fp.dp -mtune=cortex-m55 -mfloat-abi=hard -mfpu=auto *configure and test flags:* --target arm-eabi --disable-multilib --with-mode=thumb --with-arch=armv8.1-m.main+mve.fp+fp.dp --with-float=hard --target_board=-mthumb/-march=armv8.1-m.main+mve.fp+fp.dp/-mtune=cortex-m55/-mfloat-abi=hard/-mfpu=auto qemu-cpu=cortex-m55
We track this bug report under https://linaro.atlassian.net/browse/GNU-1915. (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
The full lists of regressions and improvements as well as configure and make commands are in
The list of [ignored] baseline and flaky failures are in
Current build : http://54.172.246.49:9090/jobs/tcwg_gnu_embed_check_gcc--master-thumb_m55_ha... Reference build : http://54.172.246.49:9090/jobs/tcwg_gnu_embed_check_gcc--master-thumb_m55_ha...
Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sh...
Full commit : See in git+ssh://linaroci@gcc.gnu.org/git/gcc.git
linaro-toolchain@lists.linaro.org
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Andrew Pinski