Re: [avr-llvm-devel] Load / Store

[John M. <ato...@gm...>]

> Another thing, i dont know how feasible is doing this, but should we make
> program and data space addrs transparent to the user?
>

Yes I believe that would be a useful feature.
I think we should try as much as possible without, of course, violating any
language standards.
It would allow users to write more portable/generic code.
We probable should have a command line option to enable/disable this so
users have more control.
LLVM has an address space qualifier mechanism already so I don't think it
will take too much work.
I think most of the work of making it transparent will need to be done in
the front ends and optimizer passes. Either way (like a lot of commercial
embedded compilers) we'll need to extend the type qualifiers to include
things like *flash*, *eeprom*, *near* / *far *pointers...