https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109632
--- Comment #7 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> --- Thinking more about it, it would probably be better to defer the split until around lower_complex time, after IPA (especially inlining), NRV and tail-recursion. Doing it there should also make it easier to split arguments. (In reply to Tamar Christina from comment #6) > That's an interesting approach, I think it would also fix > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109391 would it not? Since the > int16x8x3_t return would be "scalarized" avoiding the bad expansion? I don't think it will help with that, since the returned value there is a natural V3x8HI (rather than something that the ABI splits apart). Splitting in that case might pessimise cases where the return value is loaded as a whole, rather than assigned to individually. But it might be worth giving SRA the option of splitting even in that case, as a follow-on optimisation, if it fits naturally with the definitions.
