/* replace oldinst with newinst, remove oldinst from ilist, and return oldinst
(newinst can be a chain of insts) */
instr_t *
instrlist_replace(instrlist_t *ilist, instr_t *oldinst, instr_t *newinst)
{
instr_t *where;
CLIENT_ASSERT(oldinst != NULL, "instrlist_replace: oldinst cannot be NULL");
CLIENT_ASSERT(instr_get_prev(newinst) == NULL,
"instrlist_replace: cannot add middle of list");
where = instr_get_prev(oldinst);
instrlist_remove(ilist, oldinst);
if (where)
instrlist_postinsert(ilist, where, newinst);
else
instrlist_prepend(ilist, newinst);
return oldinst;
}
/* Inserts inst as a non-application instruction into ilist after "where" */
void
instrlist_meta_postinsert(instrlist_t *ilist, instr_t *where, instr_t *inst)
{
instr_set_ok_to_mangle(inst, false);
instrlist_postinsert(ilist, where, inst);
}
