On Thu, May 14, 2026 at 7:43 PM ci_notify@linaro.org wrote:

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-17-496-gda540dc6d763 | Author: Tomasz Kamiński tkaminsk@redhat.com | Date: Wed May 13 14:51:02 2026 +0200 | | libstdc++: Test for unsupported engine range for 128bits floating points [PR119739] | | This patch add test illustrating, that after implementing P0952 "A new specification for | std::generate_canonical", generators, that emit range of non-power-of-two size, that | span over B bits, are not supported in combination with 128bits integer are not | ... 16 lines of the commit log omitted.

Produces 7 regressions: | | regressions.sum: | Running libstdc++:libstdc++-dg/conformance.exp ... | FAIL: 26_numerics/random/uniform_real_distribution/operators/gencanon_eng_neg.cc -std=gnu++20 (test for errors, line 57) | FAIL: 26_numerics/random/uniform_real_distribution/operators/gencanon_eng_neg.cc -std=gnu++20 (test for errors, line 58) | FAIL: 26_numerics/random/uniform_real_distribution/operators/gencanon_eng_neg.cc -std=gnu++20 (test for errors, line 65) | FAIL: 26_numerics/random/uniform_real_distribution/operators/gencanon_eng_neg.cc -std=gnu++20 (test for errors, line 66) | ... and 3 more

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-1902. Please let us know if you have a fix.

Thanks for the report. This should already be fixed on trunk by https://gcc.gnu.org/cgit/gcc/commit/?id=5d17eec7d83445ba4f960c81c386be33baee...

libstdc++: Mark gencanon_eng_neg test as unsupported if __float128 is not available

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/10207... 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/10207... The list of [ignored] baseline and flaky failures are in

http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10207...

Current build : http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10207... Reference build : http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10206...

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