On Fri, 19 Dec 2025 at 16:40, <[email protected]> wrote: > > Dear contributor, > > Our automatic CI has detected problems related to your patch(es). Please find > some details below. > > In bootstrap_build master-arm-bootstrap_O3, after: > | commit gcc-16-6185-g487bd3ba4f1f > | Author: Jonathan Wakely <[email protected]> > | Date: Wed Dec 10 14:26:17 2025 +0000 > | > | libstdc++: Optimize compilation time for signed/unsigned integer > traits > | > | Replace the O(n) definitions using __is_one_of with constant-time > | checks that look for a static member in the __is_integral_helper class > | template. That class template is already specialized for every signed > | ... 20 lines of the commit log omitted. > > Produces Failure: > | Results changed to > | # reset_artifacts: > | -10 > | # true: > | 0 > | # build_abe bootstrap_O3: > | # FAILED > | # First few build errors in logs: > | # 00:49:05 > /home/tcwg-buildslave/workspace/tcwg_gnu_3/abe/builds/armv8l-unknown-linux-gnueabihf/armv8l-unknown-linux-gnueabihf/gcc-gcc.git~master-stage2/prev-armv8l-unknown-linux-gnueabihf/libstdc++-v3/include/bits/stl_bvector.h:183:9: > internal compiler error: Segmentation fault > | # 00:49:05 make[3]: *** [Makefile:1216: text-art/ruler.o] Error 1 > | # 00:49:05 make[2]: *** [Makefile:5200: all-stage3-gcc] Error 2 > | # 00:49:05 make[1]: *** [Makefile:26599: stage3-bubble] Error 2 > | # 00:49:05 make: *** [Makefile:1127: all] Error 2 > | > | From > | # reset_artifacts: > | -10 > | # true: > | 0 > | # build_abe bootstrap_O3: > | 1 > > Used configuration : > *CI config* tcwg_bootstrap_build master-arm-bootstrap_O3 > *configure and test flags:* none, autodetected on > armv8l-unknown-linux-gnueabihf > > We track this bug report under https://linaro.atlassian.net/browse/GNU-1783. > Please let us know if you have a fix. > > If you have any questions regarding this report, please ask on > [email protected] mailing list.
Very strange - I don't know why this would trigger a segfault in the compiler. > > -----------------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 > * > https://ci.linaro.org/job/tcwg_bootstrap_build--master-arm-bootstrap_O3-build/1019/artifact/artifacts/ > The full lists of regressions and improvements as well as configure and make > commands are in > * > https://ci.linaro.org/job/tcwg_bootstrap_build--master-arm-bootstrap_O3-build/1019/artifact/artifacts/notify/ > > Current build : > https://ci.linaro.org/job/tcwg_bootstrap_build--master-arm-bootstrap_O3-build/1019/artifact/artifacts > Reference build : > https://ci.linaro.org/job/tcwg_bootstrap_build--master-arm-bootstrap_O3-build/1018/artifact/artifacts > > Instruction to reproduce the build : > https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/487bd3ba4f1f179be42e3bb13e009d9ff8fc053e/tcwg_bootstrap_build/master-arm-bootstrap_O3/reproduction_instructions.txt > > Full commit : See in git+ssh://[email protected]/git/gcc.git
