search for: some_memb

Hello, it it possible to get a kind of diagnostics if the variable is totally optimized away? For example, in: void foo (struct some_type *obj) { ... some code where 'obj' is not used ... bar (obj->some_member); ... some code where 'obj' is not used again ... baz (obj->some_member); } 'obj' is likely to be optimized away so only 'obj->some_member' really exists (in a register or stack location). Getting diagnostics or preserving 'obj' may be important if th...