Re: [PATCH] removal of "static foo = 0"

From: Werner Almesberger (Werner.Almesberger@epfl.ch)
Date: Mon Nov 27 2000 - 03:41:39 EST

Adam J. Richter wrote:
> At the moment, I have started daydreaming about instead
> writing an "elf squeezer" to do this and other space optimizations
> by modifying objdump.

Hmm, this would require that gcc never calculates the location of an
explicitly initialized static variable based on the address of another
one. E.g. in

static int a = 0, b = 0, c = 0, d = 0;

...
    ... a+b+c+d ...
...

egcs-2.91.66 indeed doesn't seem to make this optimization on i386.
(Maybe the pointer increment or pointer offset solution would
actually be slower - didn't check.) But I'm not sure if this is also
true for other versions/architectures, or other code constructs.

- Werner 

-- 
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 / Werner Almesberger, ICA, EPFL, CH           Werner.Almesberger@epfl.ch /
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