Date: Wed, 27 Nov 1996 14:36:02 -0500 (EST)
From: Glen Miner <gminer AT Newbridge DOT COM>
To: kagel AT dg1 DOT bloomberg DOT com
cc: djgpp AT delorie DOT com
Subject: Re: Optimization
In-Reply-To: <9611271858.AA11183@quasar.bloomberg.com >
Message-ID: <Pine.SUN.3.90.961127143313.19919A-100000@coop10>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII


> Clearly -O3 optimizations using array indexing and optimizer determined
> register allocation is the fastest scheme.  This shows several points:
> 
>   1) Using array indexing is superior to using pointers when any level of
> optimization is used.
>   2) Manual register allocation is only helpful if no optimization or -O
> optimization is used!
>   3) Manual register allocation is most helpful with variables used in the
> array indexing than pointers.

Umm, just a suggestion: this information _REALLY_ should find it's way 
into the faq. I did do a quick check for this kind of info and didn't 
come up with anything.

Peace
===[ Gabo / [ABC] : gaminer AT undergrad DOT math DOT uwaterloo DOT ca ]===================
Latest ABC Shogi: http://www.undergrad.math.uwaterloo.ca/~gaminer/shogi.html
"What Greenpeace spends in a year General Motors spends in four hours" -Moby