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_quick_sanitize=undefined/logeb632ed358b86b3d851313b219967353856bba51.log.gz Automated smoke report for branch blead 5.45.1 patch eb632ed358b86b3d851313b219967353856bba51 v5.45.0-227-geb632ed358 sechs: AMD Ryzen 5 3500U with Radeon Vega Mobile Gfx (AuthenticAMD 1400MHz) (x86_64/1 cpu[8 cores]) on linux - 7.0.12-201.fc44.x86_64 [Fedora Linux 44] using ccache clang version Clang 22.1.8 (Fedora 22.1.8-1.fc44) smoketime 37 minutes 34 seconds (average 9 minutes 24 seconds) Summary: FAIL(M) 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 v5.45.0-227-geb632ed358 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" ----------- --------------------------------------------------------- M M M M -Duseithreads | +--------- -DDEBUGGING +----------- no debugging Testsuite was run only with 'harness' and HARNESS_OPTIONS=j4 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 5.42.2 (Reporter v0.053 / Smoker v0.046)