Re: Optimizing in assembly language

Randall Hyde wrote:
> So here's my question: why can't we write an "optimizing assembler"
> that lets the programmer specify machine sequences and the assembler
> does the same kinds of "book keeping" that a HLL compiler would do.
> Sure, optimization is a bit more difficult at this level and you'd
> have to allow the programmer to disable the optimizations on a
> statement by statement basis (since sometimes the programmer really
> does know better). This would allow the programmer to do what they
> know best while taking advantage of the current state of the art in
> optimization technology.


      This is kind of done for the C6x DSP processors. The C6x are VLIW
(8 way) and the "optimizing assembler" does software pipelining,
schedule instructions. I am not so sure about all what is done at the
assembly level, but it's a good starting point and to the best of my
knowledge it's the first time such a tool is commercially available.


      Oh, BTW, I am not trying to sell you anything ;)


Regards,


Laurent

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