https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119717
--- Comment #3 from qinzhao at gcc dot gnu.org ---
(In reply to uecker from comment #2)
> I guess you need to use c_fully_fold
Yes. thanks for the hints.
in c_fully_fold, it assumes:
/* Operands of variable-length expressions (function calls) have
already been folded, as have __builtin_* function calls, and such
expressions cannot occur in constant expressions. */
if (kind == tcc_vl_exp)
{
*maybe_const_operands = false;
ret = fold (expr);
goto out;
}
Therefore, when build call to .ACCESS_WITH_SIZE, we should fully_fold its
operands before building the call.
