https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114232
--- Comment #18 from Jan Hubicka <hubicka at ucw dot cz> --- optimize_function_for_size_p is not really affected by LTO or non-LTO. It does take into account node->count and node->frequency, which is updated during IPA, so it may change between early opts and late opts. I do not think we change it between vectorizer and RTL (or during RTL) and we can add this to a verifier if it is practical to rely on it (I can see that vectorizer makes instruction selection choices). But the problem here is more that optab initializations happens only at the optimization_node changes and not if we switch from hot function to cold?
