https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87767
--- Comment #11 from Hongtao.liu <crazylht at gmail dot com> --- (In reply to Jakub Jelinek from comment #10) > Do we really need separate _bcst patterns btw? Wouldn't it be better to > just have some predicate and corresponding constaint that would allow normal In currently implementation, vec_duplicate would be used for memory_operand in broadcast patterns. I'm not sure if vec_duplicate could be used in define_predicate, or am i misunderstood? > MEM vectors as well as these broadcast from single element and just use that > predicate wherever the broadcasts are allowed? Probably would need multiple > of them though, even when the main would turn to be just memory_operand if > TARGET_AVX512F is false, some instructions only use EVEX encoding if some > other TARGET_AVX* is on...
