https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106186
--- Comment #1 from Aldy Hernandez <aldyh at gcc dot gnu.org> --- Hmmm, this patch shouldn't alter current behavior. I can't reproduce on current trunk on a cross: --enable-languages=c --target=cris-sim abulafia:~/bld/tcris/gcc$ ./cc1 uninit-4.c -O1 -Wuninitialized -quiet abulafia:~/bld/tcris/gcc$ Are you sure it's this patch causing it?