https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121894
--- Comment #8 from qinzhao at gcc dot gnu.org --- in tree-sra.cc, for the following stmt: s = {}; for the above lhs "s", the field "grp_assignment_write" of the created struct access is 1; however, for the following stmt: s= .DEFERRED_INIT (8, 2, &"s"[0]); for the above lhs "s", the field "grp_assignment_write" of the created struct access is 0; This difference is the root cause for this issue. will check how to fix this for the call to .DEFERRED_INIT.