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/logfda56736ea43eca671c6390a6f37d6ea94a91cad.log.gz

Automated smoke report for branch blead 5.43.10 patch fda56736ea43eca671c6390a6f37d6ea94a91cad v5.43.9-30-gfda56736ea
sechs: AMD Ryzen 5 3500U with Radeon Vega Mobile Gfx (AuthenticAMD 1533MHz) (x86_64/1 cpu[8 cores])
    on        linux - 6.18.16-200.fc43.x86_64 [Fedora Linux 43]
    using     ccache clang version Clang 21.1.8 (Fedora 21.1.8-4.fc43)
    smoketime 1 day 23 hours 22 minutes (average 2 hours 57 minutes)

Summary: FAIL(F)

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

v5.43.9-30-gfda56736ea  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"
----------- ---------------------------------------------------------
F O O F O O -Accflags=-DNO_MATHOMS
F O O F O O -Accflags=-DPERL_POISON
F O O F O O -Duse64bitall
F O O F O O -Dusemorebits
F O O F O O -Duseithreads -Accflags=-DNO_MATHOMS
F O O F O O -Duseithreads -Accflags=-DPERL_POISON
F O O F O O -Duseithreads -Duse64bitall
F O O F 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 

Failures: (common-args) -Accflags="-g -fno-omit-frame-pointer -fno-sanitize-recover=undefined -fsanitize-blacklist=`pwd`/asan_ignore" -Aldflags="-fno-sanitize-recover=undefined" -Dcc="ccache clang"
[stdio] -Accflags=-DNO_MATHOMS
[stdio] -DDEBUGGING -Accflags=-DNO_MATHOMS
[stdio] -Accflags=-DPERL_POISON
[stdio] -DDEBUGGING -Accflags=-DPERL_POISON
[stdio] -Duse64bitall
[stdio] -DDEBUGGING -Duse64bitall
[stdio] -Dusemorebits
[stdio] -DDEBUGGING -Dusemorebits
[stdio] -Duseithreads -Accflags=-DNO_MATHOMS
[stdio] -DDEBUGGING -Duseithreads -Accflags=-DNO_MATHOMS
[stdio] -Duseithreads -Accflags=-DPERL_POISON
[stdio] -DDEBUGGING -Duseithreads -Accflags=-DPERL_POISON
[stdio] -Duseithreads -Duse64bitall
[stdio] -DDEBUGGING -Duseithreads -Duse64bitall
[stdio] -Duseithreads -Dusemorebits
[stdio] -DDEBUGGING -Duseithreads -Dusemorebits
    ../dist/Devel-SelfStubber/t/Devel-SelfStubber.t.............FAILED
        Non-zero exit status: 22
        Bad plan.  You planned 12 tests but ran 4.
    ../dist/SelfLoader/t/01SelfLoader.t.........................FAILED
        Non-zero exit status: 22
        Bad plan.  You planned 20 tests but ran 0.
    ../dist/SelfLoader/t/02SelfLoader-buggy.t...................FAILED
        1

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 5.42.0
(Reporter v0.053 / Smoker v0.046)