Re: When to do inline expansion

jfc@athena.mit.edu (John F Carr) writes:
>Are there any commercial compilers which do not allocate a value to the
>same register over its entire live range, but instead will save it on
>the stack in those blocks where the value is live but not accessed and
>it would be benficial to let another value use that register?


preston@dawn.cs.rice.edu (Preston Briggs) writes:
>Sure -- any non-global allocator does this :-) ...


Well... since we're on the subject... I just can't resist getting in a
plug for my favorite symbolic debugging information format.


To folks building compilers which use techniques such as those described
above: Please ask yourself "How are my users going to symbolically debug
optimized code even in those cases where reasonably sophisticated register
allocation techniques have been employed?"


I think there is really only one answer... DWARF (version 2).


(I would be happy to provide the latest industry review draft of the DWARF
V2 spec to anyone who would like a copy. Just ask.)
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