[Bug middle-end/102285] New flag -ftrivial-auto-var-init=zero causes crash in pr82421.c

[qinzhao at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102285

--- Comment #8 from qinzhao at gcc dot gnu.org ---
the ICE is triggered by the following IR:

MEM[(int[0:D.1993] *)&fb.3] = .DEFERRED_INIT (16, 2, 1);

which is transformed from the original IR:

(*fb.1_9) = .DEFERRED_INIT (16, 2, 1);