[Bug fortran/45586] [4.8 Regression] ICE non-trivial conversion at assignment

[mikael at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45586

--- Comment #81 from Mikael Morin <mikael at gcc dot gnu.org> 2012-08-01 18:37:55 UTC ---
(In reply to comment #79)
> If that's valid then you can make the middle-end happy by wrapping
> the RHS inside a VIEW_CONVERT_EXPR with the LHS type.
OK. will try.
I don't know yet though how to limit that to the very cases where it is
necessary.


(In reply to comment #80)
> I have not closely looked at the dump, however,
>   this%y = this%find_y()
> means that one assigns component-wise the values from the RHS to the LHS; if
> there are pointer components, the pointer address is assigned; if there are
> allocatable components, those are - if needed - first (re)allocated and then
> (element-wise) assigned.
> 
> Thus, one only assigns the values and no pointers - and, hence, the RHS can be
> a nontarget while the LHS can be a target.
> 
Actually, there is a wrong-code bug about exactly this line (see bugs #47455
and #47586). But I think that even if there wasn't, the middle-end wouldn't be
happy about it. The values are assigned component-wise, and that's the only way
the middle-end would accept it.