From: wolff@zen.et.tudelft.nl (Rogier Wolff) Subject: Re: Jumptable Performance (Was: Re: shared libs - can everyone be happy with this?) Date: Fri, 21 Aug 1992 08:18:23 GMT
davidsen@ariel.crd.GE.COM (william E Davidsen) writes:
> If more instructions and bigger size really improved performance we'd
>all leave -O off our compiles, right. Therefore it's an interesting
>little puzzle.
>--
>bill davidsen, GE Corp. R&D Center; Box 8; Schenectady NY 12345
> I admit that when I was in school I wrote COBOL. But I didn't compile.
That's what optimizing is all about: The only difference between GCC codee
for 486 and 386 is that in the 486 code some extra NOPs are added.
This will make the branch targets align on 16 byte boundaries, which will
improve cache performance.
Roger
-- If the opposite of "pro" is "con", what is the opposite of "progress"? (stolen from kadokev@iitvax.iit.edu, who got it from brydon@asl.sinet.slb.com) EMail: wolff@duteca.et.tudelft.nl ** Tel +31-15-783644 or +31-15-142371