Target specific memory attributes from RTL

[Balaji S]

_On 11-Mar-2005 02:48, James E Wilson san wrote_:
> Note that in this case finding the target means indirecting through a 
> memory address, and hence we would have to track the attributes of all 
> memory locations which is a difficult and perhaps unsolvable problem.
> 
> As I said before, I think what you are trying to do is fundamentally 
> flawed.  If you need attributes, you use them when generating RTL, not 
> when optimizing or emitting RTL.
Is expression evaluation (expr.c, expand_expr_real) converting tree into RTL, the right place to extend GCC as required?

I am planning to extend memory attributes (rtl.h, mem_attrs) with one more tree node to have type declaration of this memory.

Please correct me if i am wrong and give me the areas to be handled carefully while doing this.

Thanks in advance,
Balaji Sivan