https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113089
--- Comment #6 from Manolis Tsamis <manolis.tsamis at vrull dot eu> --- (In reply to Alex Coplan from comment #5) > Also ICEs without -fno-strict-aliasing FWIW, so just -g -O2 -funroll-loops > seems to be enough. On my local build it doesn't reproduce without -fno-strict-aliasing; I just double-checked (GCC master @ 4e0a467302fea56d63b7a6d17f99c0f388960dc7).