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/log35b3adc04efc1e4fd37c5101758174eb0615a409.log.gz Automated smoke report for branch blead 5.37.9 patch 35b3adc04efc1e4fd37c5101758174eb0615a409 v5.37.8-86-g35b3adc04e vier.local: Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz (GenuineIntel 1200MHz) (x86_64/1 cpu[8 cores]) on linux - 5.18.18-200.fc36.x86_64 [Fedora Linux 37] using ccache clang version Clang 15.0.7 (Fedora 15.0.7-1.fc37) smoketime 1 day 2 hours 3 minutes (average 1 hour 37 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 v5.37.8-86-g35b3adc04e 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 5.36.0 (Reporter v0.053 / Smoker v0.046)