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Re: GSoc-2015: Modular GCC (RFC on refactoring)


On Tue, Mar 17, 2015 at 10:36:05PM -0600, Jeff Law wrote:
> On 03/17/2015 10:32 PM, Trevor Saunders wrote:
> >
> >>2. Lists, list nodes and list iterators should be objects of distinct
> >>types. In this case, header file function.h gets additional dependency,
> >>because struct rtldata contains insn/expr lists as members; currently
> >>they are pointers, so a forward declaration is sufficient. A possible
> >>workaround is to create an opaque type like it's done with struct
> >>initial_value_struct (at a cost of one additional level of indirection).
> >>Which is better?
> >
> >given std::forward_list isn't available in c++98 I expect you'll write
> >your own version of it.  It seems pretty reasonable to me function.h
> >would depend on the hypothetical header containing that list template,
> >and presumably more stuff than just rtx_insn_list's could be made to use
> >it.
> Sigh.  We could just use a vec then...  That would still be better in
> various ways than chaining things via EXPR_LIST or INSN_LIST.

yeah, I even seem to remember coming across a place where both were done
and wondering why.

Trev

> 
> 
> Jeff
> 


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