https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105992
Hongtao.liu <crazylht at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |crazylht at gmail dot com, | |hjl.tools at gmail dot com --- Comment #1 from Hongtao.liu <crazylht at gmail dot com> --- I'm wondering would targetm.overlap_op_by_pieces_p helps here.