Greg Babineau wrote:
> I'd still like to know what levels of optimization are safe. Can I use -O5
> safely? It has been so long since I made the decision to go with -O2 that I
> can't remember the reasoning behind it.
-O5 is fine, but IIRC on m68k -O2 switches on most of the optimisations
anyway, so there's not a lot to be gained by going beyond -O2.
I have a vague feeling -fomit-frame-pointer may be broken at the
moment, but I can't remember why and haven't checked for a while.
-fomit-frame-pointer is not implied by any -On level, so there is
only a potential problem if you are setting it explicitly yourself.
John
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