On Mar 2, 2012, at 1:33 AM, Richard Guenther wrote:
>> Interestingly, the C++ frontend also has a pointer_diff function, but
>> doesn't seem to attempt to optimize. Is there a reason for this?
> Frontends should not optimize when they are not required to.

Actually, the frontends should optimize as long as it produces a faster 
compilation (and they are permitted to).  You're thinking of the rule that 
proceeded this one, we switch away from many many years back.

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