On Mon, Jun 18, 2018 at 11:59 AM, Joseph Myers <jos...@codesourcery.com> wrote: > On Mon, 18 Jun 2018, Jason Merrill wrote: > >> > + if (TREE_CODE (rhs) == COND_EXPR) >> > + { >> > + /* Check the THEN path first. */ >> > + tree op1 = TREE_OPERAND (rhs, 1); >> > + context = check_address_of_packed_member (type, op1); >> >> This should handle the GNU extension of re-using operand 0 if operand >> 1 is omitted. > > Doesn't that just use a SAVE_EXPR?
Hmm, I suppose it does, but many places in the compiler seem to expect that it produces a COND_EXPR with TREE_OPERAND 1 as NULL_TREE. Perhaps that code is obsolete. Never mind it here, then. Jason