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Re: Release novops attribute for external use?


On Mon, Apr 12, 2010 at 07:47:31PM +0100, Dave Korn wrote:
> On 12/04/2010 19:04, Andrew Haley wrote:
> 
> > I was thinking about non-memory-mapped I/O, a la x86 I/O ports.  
> 
>   I've always thought that was a bad misnomer.  Isn't it just an alternative
> memory-mapped address space pretty much like main memory (regardless that the
> mapped devices may have some fairly non-standard characteristics)?  Certainly
> from the compiler's point of view it's got to count as "memory"; it's
> somewhere values come from and go to and are "externally visible".

Then you can think about it as "does not alias any non-device
memory", or any number of variants on that.

-- 
Daniel Jacobowitz
CodeSourcery


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