https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108498
--- Comment #22 from Jakub Jelinek <jakub at gcc dot gnu.org> --- The C/C++ FEs since r9-6625-gbec1da64aec26a490 turn some array initializers into strings. Anyway, I wonder if for GCC 14 we couldn't just treat STRING_CST the same as INTEGER_CST during the merging into groups and instead deal with all of that during split_group. I.e. only at that time see that for this subset of stores we want to merge them into one STRING_CST store, these others handle differently, etc. And the preconditions for handling something the STRING_CST way would be contiguous chunk with byte aligned start/end containg at least one longer STRING_CST. So, we wouldn't give up e.g. in the second testcase, but merge the STRING_CSTs stores with the 4 byte INTEGER_CST store in between them, while handling the bitfield stuff at the start and/or the end to separate stores.