[PATCH 1/5] Named address spaces: core middle-end support

[Richard Henderson]

On 08/20/2009 07:39 AM, Richard Guenther wrote:
> To be more clear - when would a valid input program have a
> conversion between pointers to different address spaces?

If address space X is a subset of address space Y,
then conversion from X to Y ought to always be possible.
The reverse conversion from Y to X may or may not be
possible depending on the actual value of the pointer.


r~