This now errors on undefined behavior instead of warning. Smoke logs available at http://m-l.org/~perl/smoke/perl/x86_64-linux-thread-multi/blead_clang_sanitize=undefined/loge772cf349a3609ba583f441d10e1e92c5e338377.log.gz Automated smoke report for branch blead 5.37.4 patch e772cf349a3609ba583f441d10e1e92c5e338377 v5.37.2-351-ge772cf349a vier.local: Intel(R) Core(TM) i7-3820 CPU @ 3.60GHz (GenuineIntel 4676MHz) (x86_64/1 cpu[8 cores]) on linux - 5.18.18-200.fc36.x86_64 [Fedora Linux 36] using ccache clang version Clang 14.0.5 (Fedora 14.0.5-1.fc36) smoketime 22 hours 15 minutes (average 1 hour 23 minutes) Summary: PASS O = OK F = Failure(s), extended report at the bottom X = Failure(s) under TEST but not under harness ? = still running or test results not (yet) available Build failures during: - = unknown or N/A c = Configure, m = make, M = make (after miniperl), t = make test-prep v5.37.2-351-ge772cf349a Configuration (common) -Accflags="-g -fno-omit-frame-pointer -fno-sanitize-recover=undefined -fsanitize-blacklist=`pwd`/asan_ignore" -Aldflags="-fno-sanitize-recover=undefined" -Dcc="ccache clang" ----------- --------------------------------------------------------- O O O O O O -Accflags=-DNO_MATHOMS O O O O O O -Accflags=-DPERL_POISON O O O O O O -Duse64bitall O O O O O O -Dusemorebits O O O O O O -Duseithreads -Accflags=-DNO_MATHOMS O O O O O O -Duseithreads -Accflags=-DPERL_POISON O O O O O O -Duseithreads -Duse64bitall O O O O O O -Duseithreads -Dusemorebits | | | | | +- LC_ALL = en_US.utf8 -DDEBUGGING | | | | +--- PERLIO = perlio -DDEBUGGING | | | +----- PERLIO = stdio -DDEBUGGING | | +------- LC_ALL = en_US.utf8 | +--------- PERLIO = perlio +----------- PERLIO = stdio MANIFEST did not declare '.mailmap' (See log because mailing list size limit is too small.) Non-Fatal messages(gcc): -- Report by Test::Smoke v1.72 running on perl 5.34.1 (Reporter v0.053 / Smoker v0.046)