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Re: Proposed targets to deprecate for 3.4


zack@codesourcery.com said:
> In all cases, a letter appearing is the desirable case; no letter is
> the undesirable case;

> Q       Integer registers are at least 64 bits wide.
...
> q       Port can use LP64 mode integer arithmetic.

In precisely what way does having 64-bit registers make a target "more 
desirable"?  And in particular, in what way is doing LP64 code more 
desirable, especially when the underlying architecture does not have 
64-bit addressing?

R.


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