https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90134
--- Comment #4 from Arseny Solokha <asolokha at gmx dot com> --- (In reply to Andrew Pinski from comment #3) > This code is all undefined anyways ..... Yes, but what about unmodified tests from libstdc++? I occasionally hit this ICE on them too, as shown in comment 2. I've just got it w/ g++-13 -O1 -ftree-parallelize-loops=2 -fno-lifetime-dse -fnon-call-exceptions --param max-early-inliner-iterations=0 -Ilibstdc++-v3/testsuite/util -c libstdc++-v3/testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc which triggers on the same code from include/g++-v13/bits/stl_uninitialized.h
