[ECOS] code optimizations

Grant Edwards grante@visi.com
Thu Aug 23 11:18:00 GMT 2001


On Thu, Aug 23, 2001 at 04:43:02PM +0100, Bart Veer wrote:

>     Trenton> Here's some output from my stepping through my
>     Trenton> pc-controller driver I'm making. Notice how the code
>     Trenton> jumps back and forth? This shouldn't happen should it?
[...]
> This is expected behaviour if you are compiling with optimisation:

And I think it is always _allowed_ behavior.  This version of
this compiler for this target happens to not re-arrange code
with -O0, but that's not gauranteed.  It may stop working in
the future if you take that route.

There are already enough places where one almost has to depend
on compiler/platform assumptions -- you don't want to do it when
you don't have to.  ;)

-- 
Grant Edwards
grante@visi.com



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