[LLVMdev] Address Space Casting

[Michele Scandale]

On 09/10/2013 03:35 PM, David Tweed wrote:
> Hi,
> 
> | This patch introduces a new IR instruction named 'addrspacecast' that will be
> | used to represent the casting operation between pointers of different address
> | spaces. This instruction will represent whatever kind of conversion (potentially
> | both value and size of the pointer) and the semantic of the conversion between a
> | pair of address spaces is target specific.
> 
> Assuming I understand the changes, it's probably with being explicit in this note
> that "instruction will represent" means "will be the only reliable means of
> representing".

Yes, this new instruction will replace bitcast (it will be illegal to convert
pointers between different address spaces) and possibly also ptrtoint+inttoptr
that are now used for *some* address space casting.

-Michele

> Cheers,
> Dave
> 
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